Resguardo inicial

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/Makefile

@@ -0,0 +1,36 @@
+#
+# Copyright 2019-2026 Advanced Micro Devices, Inc.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+
+DMUB = dmub_srv.o dmub_srv_stat.o dmub_reg.o dmub_dcn20.o dmub_dcn21.o
+DMUB += dmub_dcn30.o dmub_dcn301.o dmub_dcn302.o dmub_dcn303.o
+DMUB += dmub_dcn31.o dmub_dcn314.o dmub_dcn315.o dmub_dcn316.o
+DMUB += dmub_dcn32.o
+DMUB += dmub_dcn35.o
+DMUB += dmub_dcn351.o
+DMUB += dmub_dcn36.o
+DMUB += dmub_dcn401.o
+DMUB += dmub_dcn42.o
+DMUB += dmub_dcn42b.o
+
+AMD_DAL_DMUB = $(addprefix $(AMDDALPATH)/dmub/src/,$(DMUB))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_DMUB)

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c

@@ -0,0 +1,487 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn20.h"
+
+#include "dcn/dcn_2_0_0_offset.h"
+#include "dcn/dcn_2_0_0_sh_mask.h"
+#include "soc15_hw_ip.h"
+#include "vega10_ip_offset.h"
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs
+
+/* Registers. */
+
+const struct dmub_srv_common_regs dmub_srv_dcn20_regs = {
+#define DMUB_SR(reg) REG_OFFSET(reg),
+	{
+		DMUB_COMMON_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+};
+
+/* Shared functions. */
+
+static void dmub_dcn20_get_fb_base_offset(struct dmub_srv *dmub,
+					  uint64_t *fb_base,
+					  uint64_t *fb_offset)
+{
+	uint32_t tmp;
+
+	if (dmub->soc_fb_info.fb_base || dmub->soc_fb_info.fb_offset) {
+		*fb_base = dmub->soc_fb_info.fb_base;
+		*fb_offset = dmub->soc_fb_info.fb_offset;
+		return;
+	}
+
+	REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp);
+	*fb_base = (uint64_t)tmp << 24;
+
+	REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp);
+	*fb_offset = (uint64_t)tmp << 24;
+}
+
+static inline void dmub_dcn20_translate_addr(const union dmub_addr *addr_in,
+					     uint64_t fb_base,
+					     uint64_t fb_offset,
+					     union dmub_addr *addr_out)
+{
+	addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset;
+}
+
+bool dmub_dcn20_use_cached_inbox(struct dmub_srv *dmub)
+{
+	/* Cached inbox is not supported in this fw version range */
+	return !(dmub->fw_version >= DMUB_FW_VERSION(1, 0, 0) &&
+		 dmub->fw_version <= DMUB_FW_VERSION(1, 10, 0));
+}
+
+void dmub_dcn20_reset(struct dmub_srv *dmub)
+{
+	union dmub_gpint_data_register cmd;
+	const uint32_t timeout = 30;
+	uint32_t in_reset, scratch, i;
+
+	REG_GET(DMCUB_CNTL, DMCUB_SOFT_RESET, &in_reset);
+
+	if (in_reset == 0) {
+		cmd.bits.status = 1;
+		cmd.bits.command_code = DMUB_GPINT__STOP_FW;
+		cmd.bits.param = 0;
+
+		dmub->hw_funcs.set_gpint(dmub, cmd);
+
+		/**
+		 * Timeout covers both the ACK and the wait
+		 * for remaining work to finish.
+		 *
+		 * This is mostly bound by the PHY disable sequence.
+		 * Each register check will be greater than 1us, so
+		 * don't bother using udelay.
+		 */
+
+		for (i = 0; i < timeout; ++i) {
+			if (dmub->hw_funcs.is_gpint_acked(dmub, cmd))
+				break;
+		}
+
+		for (i = 0; i < timeout; ++i) {
+			scratch = dmub->hw_funcs.get_gpint_response(dmub);
+			if (scratch == DMUB_GPINT__STOP_FW_RESPONSE)
+				break;
+		}
+
+		/* Clear the GPINT command manually so we don't reset again. */
+		cmd.all = 0;
+		dmub->hw_funcs.set_gpint(dmub, cmd);
+
+		/* Force reset in case we timed out, DMCUB is likely hung. */
+	}
+
+	REG_UPDATE(DMCUB_CNTL, DMCUB_SOFT_RESET, 1);
+	REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+	REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 1);
+	REG_WRITE(DMCUB_INBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_INBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_SCRATCH0, 0);
+}
+
+void dmub_dcn20_reset_release(struct dmub_srv *dmub)
+{
+	REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 0);
+	REG_WRITE(DMCUB_SCRATCH15, dmub->psp_version & 0x001100FF);
+	REG_UPDATE_2(DMCUB_CNTL, DMCUB_ENABLE, 1, DMCUB_TRACEPORT_EN, 1);
+	REG_UPDATE(DMCUB_CNTL, DMCUB_SOFT_RESET, 0);
+}
+
+void dmub_dcn20_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+	uint64_t fb_base, fb_offset;
+
+	dmub_dcn20_get_fb_base_offset(dmub, &fb_base, &fb_offset);
+
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
+	REG_UPDATE_2(DMCUB_MEM_CNTL, DMCUB_MEM_READ_SPACE, 0x3,
+		     DMCUB_MEM_WRITE_SPACE, 0x3);
+
+	dmub_dcn20_translate_addr(&cw0->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+		  DMCUB_REGION3_CW0_ENABLE, 1);
+
+	dmub_dcn20_translate_addr(&cw1->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+		  DMCUB_REGION3_CW1_ENABLE, 1);
+
+	REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
+		     0x20);
+}
+
+void dmub_dcn20_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6)
+{
+	(void)region6;
+	union dmub_addr offset;
+	uint64_t fb_base, fb_offset;
+
+	dmub_dcn20_get_fb_base_offset(dmub, &fb_base, &fb_offset);
+
+	if (cw2->region.base != cw2->region.top) {
+		dmub_dcn20_translate_addr(&cw2->offset, fb_base, fb_offset,
+					  &offset);
+
+		REG_WRITE(DMCUB_REGION3_CW2_OFFSET, offset.u.low_part);
+		REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, offset.u.high_part);
+		REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, cw2->region.base);
+		REG_SET_2(DMCUB_REGION3_CW2_TOP_ADDRESS, 0,
+			  DMCUB_REGION3_CW2_TOP_ADDRESS, cw2->region.top,
+			  DMCUB_REGION3_CW2_ENABLE, 1);
+	} else {
+		REG_WRITE(DMCUB_REGION3_CW2_OFFSET, 0);
+		REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, 0);
+		REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, 0);
+		REG_WRITE(DMCUB_REGION3_CW2_TOP_ADDRESS, 0);
+	}
+
+	dmub_dcn20_translate_addr(&cw3->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base);
+	REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top,
+		  DMCUB_REGION3_CW3_ENABLE, 1);
+
+	/* TODO: Move this to CW4. */
+	dmub_dcn20_translate_addr(&cw4->offset, fb_base, fb_offset, &offset);
+
+	/* New firmware can support CW4. */
+	if (dmub_dcn20_use_cached_inbox(dmub)) {
+		REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part);
+		REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part);
+		REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base);
+		REG_SET_2(DMCUB_REGION3_CW4_TOP_ADDRESS, 0,
+			  DMCUB_REGION3_CW4_TOP_ADDRESS, cw4->region.top,
+			  DMCUB_REGION3_CW4_ENABLE, 1);
+	} else {
+		REG_WRITE(DMCUB_REGION4_OFFSET, offset.u.low_part);
+		REG_WRITE(DMCUB_REGION4_OFFSET_HIGH, offset.u.high_part);
+		REG_SET_2(DMCUB_REGION4_TOP_ADDRESS, 0,
+			  DMCUB_REGION4_TOP_ADDRESS,
+			  cw4->region.top - cw4->region.base - 1,
+			  DMCUB_REGION4_ENABLE, 1);
+	}
+
+	dmub_dcn20_translate_addr(&cw5->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base);
+	REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top,
+		  DMCUB_REGION3_CW5_ENABLE, 1);
+
+	REG_WRITE(DMCUB_REGION5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION5_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION5_TOP_ADDRESS, 0,
+		  DMCUB_REGION5_TOP_ADDRESS,
+		  cw5->region.top - cw5->region.base - 1,
+		  DMCUB_REGION5_ENABLE, 1);
+
+	dmub_dcn20_translate_addr(&cw6->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base);
+	REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top,
+		  DMCUB_REGION3_CW6_ENABLE, 1);
+}
+
+void dmub_dcn20_setup_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *inbox1)
+{
+	/* New firmware can support CW4 for the inbox. */
+	if (dmub_dcn20_use_cached_inbox(dmub))
+		REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, inbox1->base);
+	else
+		REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, 0x80000000);
+
+	REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base);
+}
+
+uint32_t dmub_dcn20_get_inbox1_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_WPTR);
+}
+
+uint32_t dmub_dcn20_get_inbox1_rptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_RPTR);
+}
+
+void dmub_dcn20_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset)
+{
+	REG_WRITE(DMCUB_INBOX1_WPTR, wptr_offset);
+}
+
+void dmub_dcn20_setup_out_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox1)
+{
+	/* New firmware can support CW4 for the outbox. */
+	if (dmub_dcn20_use_cached_inbox(dmub))
+		REG_WRITE(DMCUB_OUTBOX1_BASE_ADDRESS, outbox1->base);
+	else
+		REG_WRITE(DMCUB_OUTBOX1_BASE_ADDRESS, 0x80002000);
+
+	REG_WRITE(DMCUB_OUTBOX1_SIZE, outbox1->top - outbox1->base);
+}
+
+uint32_t dmub_dcn20_get_outbox1_wptr(struct dmub_srv *dmub)
+{
+	/**
+	 * outbox1 wptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	return REG_READ(DMCUB_OUTBOX1_WPTR);
+}
+
+void dmub_dcn20_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	/**
+	 * outbox1 rptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, rptr_offset);
+}
+
+void dmub_dcn20_setup_outbox0(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox0)
+{
+	REG_WRITE(DMCUB_OUTBOX0_BASE_ADDRESS, outbox0->base);
+
+	REG_WRITE(DMCUB_OUTBOX0_SIZE, outbox0->top - outbox0->base);
+}
+
+uint32_t dmub_dcn20_get_outbox0_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_OUTBOX0_WPTR);
+}
+
+void dmub_dcn20_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, rptr_offset);
+}
+
+bool dmub_dcn20_is_hw_init(struct dmub_srv *dmub)
+{
+	uint32_t is_hw_init;
+
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_hw_init);
+
+	return is_hw_init != 0;
+}
+
+bool dmub_dcn20_is_supported(struct dmub_srv *dmub)
+{
+	uint32_t supported = 0;
+
+	REG_GET(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE, &supported);
+
+	return supported;
+}
+
+void dmub_dcn20_set_gpint(struct dmub_srv *dmub,
+			  union dmub_gpint_data_register reg)
+{
+	REG_WRITE(DMCUB_GPINT_DATAIN1, reg.all);
+}
+
+bool dmub_dcn20_is_gpint_acked(struct dmub_srv *dmub,
+			       union dmub_gpint_data_register reg)
+{
+	union dmub_gpint_data_register test;
+
+	reg.bits.status = 0;
+	test.all = REG_READ(DMCUB_GPINT_DATAIN1);
+
+	return test.all == reg.all;
+}
+
+uint32_t dmub_dcn20_get_gpint_response(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH7);
+}
+
+union dmub_fw_boot_status dmub_dcn20_get_fw_boot_status(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	return status;
+}
+
+void dmub_dcn20_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params)
+{
+	(void)params;
+	union dmub_fw_boot_options boot_options = {0};
+
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+void dmub_dcn20_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip)
+{
+	union dmub_fw_boot_options boot_options;
+	boot_options.all = REG_READ(DMCUB_SCRATCH14);
+	boot_options.bits.skip_phy_init_panel_sequence = skip;
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+uint32_t dmub_dcn20_get_current_time(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_TIMER_CURRENT);
+}
+
+void dmub_dcn20_get_diagnostic_data(struct dmub_srv *dmub)
+{
+	uint32_t is_dmub_enabled, is_soft_reset, is_sec_reset;
+	uint32_t is_traceport_enabled, is_cw0_enabled, is_cw6_enabled;
+	struct dmub_timeout_info timeout = {0};
+
+	if (!dmub)
+		return;
+
+	/* timeout data filled externally, cache before resetting memory */
+	timeout = dmub->debug.timeout_info;
+	memset(&dmub->debug, 0, sizeof(dmub->debug));
+	dmub->debug.timeout_info = timeout;
+
+	dmub->debug.dmcub_version = dmub->fw_version;
+
+	dmub->debug.scratch[0] = REG_READ(DMCUB_SCRATCH0);
+	dmub->debug.scratch[1] = REG_READ(DMCUB_SCRATCH1);
+	dmub->debug.scratch[2] = REG_READ(DMCUB_SCRATCH2);
+	dmub->debug.scratch[3] = REG_READ(DMCUB_SCRATCH3);
+	dmub->debug.scratch[4] = REG_READ(DMCUB_SCRATCH4);
+	dmub->debug.scratch[5] = REG_READ(DMCUB_SCRATCH5);
+	dmub->debug.scratch[6] = REG_READ(DMCUB_SCRATCH6);
+	dmub->debug.scratch[7] = REG_READ(DMCUB_SCRATCH7);
+	dmub->debug.scratch[8] = REG_READ(DMCUB_SCRATCH8);
+	dmub->debug.scratch[9] = REG_READ(DMCUB_SCRATCH9);
+	dmub->debug.scratch[10] = REG_READ(DMCUB_SCRATCH10);
+	dmub->debug.scratch[11] = REG_READ(DMCUB_SCRATCH11);
+	dmub->debug.scratch[12] = REG_READ(DMCUB_SCRATCH12);
+	dmub->debug.scratch[13] = REG_READ(DMCUB_SCRATCH13);
+	dmub->debug.scratch[14] = REG_READ(DMCUB_SCRATCH14);
+	dmub->debug.scratch[15] = REG_READ(DMCUB_SCRATCH15);
+
+	dmub->debug.undefined_address_fault_addr = REG_READ(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR);
+	dmub->debug.inst_fetch_fault_addr = REG_READ(DMCUB_INST_FETCH_FAULT_ADDR);
+	dmub->debug.data_write_fault_addr = REG_READ(DMCUB_DATA_WRITE_FAULT_ADDR);
+
+	dmub->debug.inbox1_rptr = REG_READ(DMCUB_INBOX1_RPTR);
+	dmub->debug.inbox1_wptr = REG_READ(DMCUB_INBOX1_WPTR);
+	dmub->debug.inbox1_size = REG_READ(DMCUB_INBOX1_SIZE);
+
+	dmub->debug.inbox0_rptr = REG_READ(DMCUB_INBOX0_RPTR);
+	dmub->debug.inbox0_wptr = REG_READ(DMCUB_INBOX0_WPTR);
+	dmub->debug.inbox0_size = REG_READ(DMCUB_INBOX0_SIZE);
+
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_dmub_enabled);
+	ASSERT(is_dmub_enabled <= 0xFF);
+	dmub->debug.is_dmcub_enabled = (uint8_t)is_dmub_enabled;
+
+	REG_GET(DMCUB_CNTL, DMCUB_SOFT_RESET, &is_soft_reset);
+	ASSERT(is_soft_reset <= 0xFF);
+	dmub->debug.is_dmcub_soft_reset = (uint8_t)is_soft_reset;
+
+	REG_GET(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS, &is_sec_reset);
+	ASSERT(is_sec_reset <= 0xFF);
+	dmub->debug.is_dmcub_secure_reset = (uint8_t)is_sec_reset;
+
+	REG_GET(DMCUB_CNTL, DMCUB_TRACEPORT_EN, &is_traceport_enabled);
+	ASSERT(is_traceport_enabled <= 0xFF);
+	dmub->debug.is_traceport_en  = (uint8_t)is_traceport_enabled;
+
+	REG_GET(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE, &is_cw0_enabled);
+	ASSERT(is_cw0_enabled <= 0xFF);
+	dmub->debug.is_cw0_enabled = (uint8_t)is_cw0_enabled;
+
+	REG_GET(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE, &is_cw6_enabled);
+	ASSERT(is_cw6_enabled <= 0xFF);
+	dmub->debug.is_cw6_enabled = (uint8_t)is_cw6_enabled;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h

@@ -0,0 +1,252 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN20_H_
+#define _DMUB_DCN20_H_
+
+#include "../inc/dmub_cmd.h"
+
+struct dmub_srv;
+
+/* DCN20 register definitions. */
+
+#define DMUB_COMMON_REGS() \
+	DMUB_SR(DMCUB_CNTL) \
+	DMUB_SR(DMCUB_MEM_CNTL) \
+	DMUB_SR(DMCUB_SEC_CNTL) \
+	DMUB_SR(DMCUB_INBOX0_SIZE) \
+	DMUB_SR(DMCUB_INBOX0_RPTR) \
+	DMUB_SR(DMCUB_INBOX0_WPTR) \
+	DMUB_SR(DMCUB_INBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_INBOX1_SIZE) \
+	DMUB_SR(DMCUB_INBOX1_RPTR) \
+	DMUB_SR(DMCUB_INBOX1_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX0_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX0_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX1_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX1_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_WPTR) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION4_OFFSET) \
+	DMUB_SR(DMCUB_REGION4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION5_OFFSET) \
+	DMUB_SR(DMCUB_REGION5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_SCRATCH0) \
+	DMUB_SR(DMCUB_SCRATCH1) \
+	DMUB_SR(DMCUB_SCRATCH2) \
+	DMUB_SR(DMCUB_SCRATCH3) \
+	DMUB_SR(DMCUB_SCRATCH4) \
+	DMUB_SR(DMCUB_SCRATCH5) \
+	DMUB_SR(DMCUB_SCRATCH6) \
+	DMUB_SR(DMCUB_SCRATCH7) \
+	DMUB_SR(DMCUB_SCRATCH8) \
+	DMUB_SR(DMCUB_SCRATCH9) \
+	DMUB_SR(DMCUB_SCRATCH10) \
+	DMUB_SR(DMCUB_SCRATCH11) \
+	DMUB_SR(DMCUB_SCRATCH12) \
+	DMUB_SR(DMCUB_SCRATCH13) \
+	DMUB_SR(DMCUB_SCRATCH14) \
+	DMUB_SR(DMCUB_SCRATCH15) \
+	DMUB_SR(DMCUB_GPINT_DATAIN1) \
+	DMUB_SR(CC_DC_PIPE_DIS) \
+	DMUB_SR(MMHUBBUB_SOFT_RESET) \
+	DMUB_SR(DCN_VM_FB_LOCATION_BASE) \
+	DMUB_SR(DCN_VM_FB_OFFSET) \
+	DMUB_SR(DMCUB_INTERRUPT_ACK) \
+	DMUB_SR(DMCUB_TIMER_CURRENT) \
+	DMUB_SR(DMCUB_INST_FETCH_FAULT_ADDR) \
+	DMUB_SR(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR) \
+	DMUB_SR(DMCUB_DATA_WRITE_FAULT_ADDR)
+
+#define DMCUB_INTERNAL_REGS()
+
+#define DMUB_COMMON_FIELDS() \
+	DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_SOFT_RESET) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_TRACEPORT_EN) \
+	DMUB_SF(DMCUB_MEM_CNTL, DMCUB_MEM_READ_SPACE) \
+	DMUB_SF(DMCUB_MEM_CNTL, DMCUB_MEM_WRITE_SPACE) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_MEM_UNIT_ID) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_ENABLE) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_ENABLE) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_ENABLE) \
+	DMUB_SF(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE) \
+	DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET) \
+	DMUB_SF(DCN_VM_FB_LOCATION_BASE, FB_BASE) \
+	DMUB_SF(DCN_VM_FB_OFFSET, FB_OFFSET) \
+	DMUB_SF(DMCUB_INTERRUPT_ACK, DMCUB_OUTBOX0_READY_INT_ACK)
+
+struct dmub_srv_common_reg_offset {
+#define DMUB_SR(reg) uint32_t reg;
+	DMUB_COMMON_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+};
+
+struct dmub_srv_common_reg_shift {
+#define DMUB_SF(reg, field) uint8_t reg##__##field;
+	DMUB_COMMON_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_common_reg_mask {
+#define DMUB_SF(reg, field) uint32_t reg##__##field;
+	DMUB_COMMON_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_common_regs {
+	const struct dmub_srv_common_reg_offset offset;
+	const struct dmub_srv_common_reg_mask mask;
+	const struct dmub_srv_common_reg_shift shift;
+};
+
+extern const struct dmub_srv_common_regs dmub_srv_dcn20_regs;
+
+/* Hardware functions. */
+
+void dmub_dcn20_init(struct dmub_srv *dmub);
+
+void dmub_dcn20_reset(struct dmub_srv *dmub);
+
+void dmub_dcn20_reset_release(struct dmub_srv *dmub);
+
+void dmub_dcn20_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1);
+
+void dmub_dcn20_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6);
+
+void dmub_dcn20_setup_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *inbox1);
+
+uint32_t dmub_dcn20_get_inbox1_wptr(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn20_get_inbox1_rptr(struct dmub_srv *dmub);
+
+void dmub_dcn20_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset);
+
+void dmub_dcn20_setup_out_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox1);
+
+uint32_t dmub_dcn20_get_outbox1_wptr(struct dmub_srv *dmub);
+
+void dmub_dcn20_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+void dmub_dcn20_setup_outbox0(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox0);
+
+uint32_t dmub_dcn20_get_outbox0_wptr(struct dmub_srv *dmub);
+
+void dmub_dcn20_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+bool dmub_dcn20_is_hw_init(struct dmub_srv *dmub);
+
+bool dmub_dcn20_is_supported(struct dmub_srv *dmub);
+
+void dmub_dcn20_set_gpint(struct dmub_srv *dmub,
+			  union dmub_gpint_data_register reg);
+
+bool dmub_dcn20_is_gpint_acked(struct dmub_srv *dmub,
+			       union dmub_gpint_data_register reg);
+
+uint32_t dmub_dcn20_get_gpint_response(struct dmub_srv *dmub);
+
+void dmub_dcn20_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params);
+
+void dmub_dcn20_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip);
+
+union dmub_fw_boot_status dmub_dcn20_get_fw_boot_status(struct dmub_srv *dmub);
+
+bool dmub_dcn20_use_cached_inbox(struct dmub_srv *dmub);
+
+bool dmub_dcn20_use_cached_trace_buffer(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn20_get_current_time(struct dmub_srv *dmub);
+
+void dmub_dcn20_get_diagnostic_data(struct dmub_srv *dmub);
+
+#endif /* _DMUB_DCN20_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn21.c

@@ -0,0 +1,56 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn21.h"
+
+#include "dcn/dcn_2_1_0_offset.h"
+#include "dcn/dcn_2_1_0_sh_mask.h"
+#include "renoir_ip_offset.h"
+
+#define BASE_INNER(seg) DMU_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs
+
+/* Registers. */
+
+const struct dmub_srv_common_regs dmub_srv_dcn21_regs = {
+#define DMUB_SR(reg) REG_OFFSET(reg),
+	{
+		DMUB_COMMON_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+};
+

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn21.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN21_H_
+#define _DMUB_DCN21_H_
+
+#include "dmub_dcn20.h"
+
+/* Registers. */
+
+extern const struct dmub_srv_common_regs dmub_srv_dcn21_regs;
+
+#endif /* _DMUB_DCN21_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.c

@@ -0,0 +1,203 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn20.h"
+#include "dmub_dcn30.h"
+
+#include "sienna_cichlid_ip_offset.h"
+#include "dcn/dcn_3_0_0_offset.h"
+#include "dcn/dcn_3_0_0_sh_mask.h"
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs
+
+/* Registers. */
+
+const struct dmub_srv_common_regs dmub_srv_dcn30_regs = {
+#define DMUB_SR(reg) REG_OFFSET(reg),
+	{
+		DMUB_COMMON_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+};
+
+/* Shared functions. */
+
+static void dmub_dcn30_get_fb_base_offset(struct dmub_srv *dmub,
+					  uint64_t *fb_base,
+					  uint64_t *fb_offset)
+{
+	uint32_t tmp;
+
+	if (dmub->soc_fb_info.fb_base || dmub->soc_fb_info.fb_offset) {
+		*fb_base = dmub->soc_fb_info.fb_base;
+		*fb_offset = dmub->soc_fb_info.fb_offset;
+		return;
+	}
+
+	REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp);
+	*fb_base = (uint64_t)tmp << 24;
+
+	REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp);
+	*fb_offset = (uint64_t)tmp << 24;
+}
+
+static inline void dmub_dcn30_translate_addr(const union dmub_addr *addr_in,
+					     uint64_t fb_base,
+					     uint64_t fb_offset,
+					     union dmub_addr *addr_out)
+{
+	addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset;
+}
+
+void dmub_dcn30_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+	uint64_t fb_base, fb_offset;
+
+	dmub_dcn30_get_fb_base_offset(dmub, &fb_base, &fb_offset);
+
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
+
+	/* MEM_CTNL read/write space doesn't exist. */
+
+	dmub_dcn30_translate_addr(&cw0->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+		  DMCUB_REGION3_CW0_ENABLE, 1);
+
+	dmub_dcn30_translate_addr(&cw1->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+		  DMCUB_REGION3_CW1_ENABLE, 1);
+
+	REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
+		     0x20);
+}
+
+void dmub_dcn30_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6)
+{
+	(void)region6;
+	union dmub_addr offset;
+
+	/* sienna_cichlid  has hardwired virtual addressing for CW2-CW7 */
+
+	offset = cw2->offset;
+
+	if (cw2->region.base != cw2->region.top) {
+		REG_WRITE(DMCUB_REGION3_CW2_OFFSET, offset.u.low_part);
+		REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, offset.u.high_part);
+		REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, cw2->region.base);
+		REG_SET_2(DMCUB_REGION3_CW2_TOP_ADDRESS, 0,
+			  DMCUB_REGION3_CW2_TOP_ADDRESS, cw2->region.top,
+			  DMCUB_REGION3_CW2_ENABLE, 1);
+	} else {
+		REG_WRITE(DMCUB_REGION3_CW2_OFFSET, 0);
+		REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, 0);
+		REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, 0);
+		REG_WRITE(DMCUB_REGION3_CW2_TOP_ADDRESS, 0);
+	}
+
+	offset = cw3->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base);
+	REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top,
+		  DMCUB_REGION3_CW3_ENABLE, 1);
+
+	offset = cw4->offset;
+
+	/* New firmware can support CW4. */
+	if (dmub_dcn20_use_cached_inbox(dmub)) {
+		REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part);
+		REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part);
+		REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base);
+		REG_SET_2(DMCUB_REGION3_CW4_TOP_ADDRESS, 0,
+			  DMCUB_REGION3_CW4_TOP_ADDRESS, cw4->region.top,
+			  DMCUB_REGION3_CW4_ENABLE, 1);
+	} else {
+		REG_WRITE(DMCUB_REGION4_OFFSET, offset.u.low_part);
+		REG_WRITE(DMCUB_REGION4_OFFSET_HIGH, offset.u.high_part);
+		REG_SET_2(DMCUB_REGION4_TOP_ADDRESS, 0,
+			  DMCUB_REGION4_TOP_ADDRESS,
+			  cw4->region.top - cw4->region.base - 1,
+			  DMCUB_REGION4_ENABLE, 1);
+	}
+
+	offset = cw5->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base);
+	REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top,
+		  DMCUB_REGION3_CW5_ENABLE, 1);
+
+	REG_WRITE(DMCUB_REGION5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION5_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION5_TOP_ADDRESS, 0,
+		  DMCUB_REGION5_TOP_ADDRESS,
+		  cw5->region.top - cw5->region.base - 1,
+		  DMCUB_REGION5_ENABLE, 1);
+
+	offset = cw6->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base);
+	REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top,
+		  DMCUB_REGION3_CW6_ENABLE, 1);
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN30_H_
+#define _DMUB_DCN30_H_
+
+#include "dmub_dcn20.h"
+
+/* Registers. */
+
+extern const struct dmub_srv_common_regs dmub_srv_dcn30_regs;
+
+/* Hardware functions. */
+
+void dmub_dcn30_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1);
+
+void dmub_dcn30_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6);
+
+
+#endif /* _DMUB_DCN30_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn301.c

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn301.h"
+
+#include "dcn/dcn_3_0_1_offset.h"
+#include "dcn/dcn_3_0_1_sh_mask.h"
+#include "vangogh_ip_offset.h"
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs
+
+/* Registers. */
+
+const struct dmub_srv_common_regs dmub_srv_dcn301_regs = {
+#define DMUB_SR(reg) REG_OFFSET(reg),
+	{
+		DMUB_COMMON_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+};
+
+/* Shared functions. */
+

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn301.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN301_H_
+#define _DMUB_DCN301_H_
+
+#include "dmub_dcn20.h"
+
+/* Registers. */
+
+extern const struct dmub_srv_common_regs dmub_srv_dcn301_regs;
+
+/* Hardware functions. */
+
+#endif /* _DMUB_DCN301_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn302.c

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn302.h"
+
+#include "dimgrey_cavefish_ip_offset.h"
+#include "dcn/dcn_3_0_0_offset.h"
+#include "dcn/dcn_3_0_0_sh_mask.h"
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs
+
+/* Registers. */
+
+const struct dmub_srv_common_regs dmub_srv_dcn302_regs = {
+#define DMUB_SR(reg) REG_OFFSET(reg),
+	{
+		DMUB_COMMON_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+};
+
+/* Shared functions. */
+

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn302.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN302_H_
+#define _DMUB_DCN302_H_
+
+#include "dmub_dcn20.h"
+
+/* Registers. */
+
+extern const struct dmub_srv_common_regs dmub_srv_dcn302_regs;
+
+/* Hardware functions. */
+
+#endif /* _DMUB_DCN302_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn303.c

@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright (C) 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn303.h"
+
+#include "sienna_cichlid_ip_offset.h"
+#include "dcn/dcn_3_0_3_offset.h"
+#include "dcn/dcn_3_0_3_sh_mask.h"
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs
+
+/* Registers. */
+
+const struct dmub_srv_common_regs dmub_srv_dcn303_regs = {
+#define DMUB_SR(reg) REG_OFFSET(reg),
+	{
+		DMUB_COMMON_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+};
+
+/* Shared functions. */
+

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn303.h

@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright (C) 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN303_H_
+#define _DMUB_DCN303_H_
+
+#include "dmub_dcn20.h"
+
+/* Registers. */
+
+extern const struct dmub_srv_common_regs dmub_srv_dcn303_regs;
+
+/* Hardware functions. */
+
+#endif /* _DMUB_DCN303_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c

@@ -0,0 +1,505 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn31.h"
+
+#include "yellow_carp_offset.h"
+#include "dcn/dcn_3_1_2_offset.h"
+#include "dcn/dcn_3_1_2_sh_mask.h"
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs_dcn31
+#define REG_OFFSET_EXP(reg_name) (BASE(reg##reg_name##_BASE_IDX) + reg##reg_name)
+
+const struct dmub_srv_dcn31_regs dmub_srv_dcn31_regs = {
+#define DMUB_SR(reg) REG_OFFSET_EXP(reg),
+	{
+		DMUB_DCN31_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_DCN31_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_DCN31_FIELDS() },
+#undef DMUB_SF
+};
+
+static void dmub_dcn31_get_fb_base_offset(struct dmub_srv *dmub,
+					  uint64_t *fb_base,
+					  uint64_t *fb_offset)
+{
+	uint32_t tmp;
+
+	if (dmub->soc_fb_info.fb_base || dmub->soc_fb_info.fb_offset) {
+		*fb_base = dmub->soc_fb_info.fb_base;
+		*fb_offset = dmub->soc_fb_info.fb_offset;
+		return;
+	}
+
+	REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp);
+	*fb_base = (uint64_t)tmp << 24;
+
+	REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp);
+	*fb_offset = (uint64_t)tmp << 24;
+}
+
+static inline void dmub_dcn31_translate_addr(const union dmub_addr *addr_in,
+					     uint64_t fb_base,
+					     uint64_t fb_offset,
+					     union dmub_addr *addr_out)
+{
+	addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset;
+}
+
+void dmub_dcn31_reset(struct dmub_srv *dmub)
+{
+	union dmub_gpint_data_register cmd;
+	const uint32_t timeout = 100000;
+	uint32_t in_reset, is_enabled, scratch, i, pwait_mode;
+
+	REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &in_reset);
+
+	if (in_reset == 0) {
+		cmd.bits.status = 1;
+		cmd.bits.command_code = DMUB_GPINT__STOP_FW;
+		cmd.bits.param = 0;
+
+		dmub->hw_funcs.set_gpint(dmub, cmd);
+
+		/**
+		 * Timeout covers both the ACK and the wait
+		 * for remaining work to finish.
+		 */
+
+		for (i = 0; i < timeout; ++i) {
+			if (dmub->hw_funcs.is_gpint_acked(dmub, cmd))
+				break;
+
+			udelay(1);
+		}
+
+		for (i = 0; i < timeout; ++i) {
+			scratch = REG_READ(DMCUB_SCRATCH7);
+			if (scratch == DMUB_GPINT__STOP_FW_RESPONSE)
+				break;
+
+			udelay(1);
+		}
+
+		for (i = 0; i < timeout; ++i) {
+			REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &pwait_mode);
+			if (pwait_mode & (1 << 0))
+				break;
+
+			udelay(1);
+		}
+		/* Force reset in case we timed out, DMCUB is likely hung. */
+	}
+
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enabled);
+
+	if (is_enabled) {
+		REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 1);
+		REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 1);
+		REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+	}
+
+	REG_WRITE(DMCUB_INBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_INBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX0_WPTR, 0);
+	REG_WRITE(DMCUB_SCRATCH0, 0);
+
+	/* Clear the GPINT command manually so we don't send anything during boot. */
+	cmd.all = 0;
+	dmub->hw_funcs.set_gpint(dmub, cmd);
+}
+
+void dmub_dcn31_reset_release(struct dmub_srv *dmub)
+{
+	REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 0);
+	REG_WRITE(DMCUB_SCRATCH15, dmub->psp_version & 0x001100FF);
+	REG_UPDATE_2(DMCUB_CNTL, DMCUB_ENABLE, 1, DMCUB_TRACEPORT_EN, 1);
+	REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 0);
+}
+
+void dmub_dcn31_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+	uint64_t fb_base, fb_offset;
+
+	dmub_dcn31_get_fb_base_offset(dmub, &fb_base, &fb_offset);
+
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
+
+	dmub_dcn31_translate_addr(&cw0->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+		  DMCUB_REGION3_CW0_ENABLE, 1);
+
+	dmub_dcn31_translate_addr(&cw1->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+		  DMCUB_REGION3_CW1_ENABLE, 1);
+
+	REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
+		     0x20);
+}
+
+void dmub_dcn31_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6)
+{
+	(void)cw2;
+	(void)region6;
+	union dmub_addr offset;
+
+	offset = cw3->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base);
+	REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top,
+		  DMCUB_REGION3_CW3_ENABLE, 1);
+
+	offset = cw4->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base);
+	REG_SET_2(DMCUB_REGION3_CW4_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW4_TOP_ADDRESS, cw4->region.top,
+		  DMCUB_REGION3_CW4_ENABLE, 1);
+
+	offset = cw5->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base);
+	REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top,
+		  DMCUB_REGION3_CW5_ENABLE, 1);
+
+	REG_WRITE(DMCUB_REGION5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION5_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION5_TOP_ADDRESS, 0,
+		  DMCUB_REGION5_TOP_ADDRESS,
+		  cw5->region.top - cw5->region.base - 1,
+		  DMCUB_REGION5_ENABLE, 1);
+
+	offset = cw6->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base);
+	REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top,
+		  DMCUB_REGION3_CW6_ENABLE, 1);
+}
+
+void dmub_dcn31_setup_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *inbox1)
+{
+	REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, inbox1->base);
+	REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base);
+}
+
+uint32_t dmub_dcn31_get_inbox1_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_WPTR);
+}
+
+uint32_t dmub_dcn31_get_inbox1_rptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_RPTR);
+}
+
+void dmub_dcn31_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset)
+{
+	REG_WRITE(DMCUB_INBOX1_WPTR, wptr_offset);
+}
+
+void dmub_dcn31_setup_out_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox1)
+{
+	REG_WRITE(DMCUB_OUTBOX1_BASE_ADDRESS, outbox1->base);
+	REG_WRITE(DMCUB_OUTBOX1_SIZE, outbox1->top - outbox1->base);
+}
+
+uint32_t dmub_dcn31_get_outbox1_wptr(struct dmub_srv *dmub)
+{
+	/**
+	 * outbox1 wptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	return REG_READ(DMCUB_OUTBOX1_WPTR);
+}
+
+void dmub_dcn31_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	/**
+	 * outbox1 rptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, rptr_offset);
+}
+
+bool dmub_dcn31_is_hw_init(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+	uint32_t is_enable;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enable);
+
+	return is_enable != 0 && status.bits.dal_fw;
+}
+
+bool dmub_dcn31_is_supported(struct dmub_srv *dmub)
+{
+	uint32_t supported = 0;
+
+	REG_GET(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE, &supported);
+
+	return supported;
+}
+
+bool dmub_dcn31_is_psrsu_supported(struct dmub_srv *dmub)
+{
+	return dmub->fw_version >= DMUB_FW_VERSION(4, 0, 59);
+}
+
+void dmub_dcn31_set_gpint(struct dmub_srv *dmub,
+			  union dmub_gpint_data_register reg)
+{
+	REG_WRITE(DMCUB_GPINT_DATAIN1, reg.all);
+}
+
+bool dmub_dcn31_is_gpint_acked(struct dmub_srv *dmub,
+			       union dmub_gpint_data_register reg)
+{
+	union dmub_gpint_data_register test;
+
+	reg.bits.status = 0;
+	test.all = REG_READ(DMCUB_GPINT_DATAIN1);
+
+	return test.all == reg.all;
+}
+
+uint32_t dmub_dcn31_get_gpint_response(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH7);
+}
+
+uint32_t dmub_dcn31_get_gpint_dataout(struct dmub_srv *dmub)
+{
+	uint32_t dataout = REG_READ(DMCUB_GPINT_DATAOUT);
+
+	REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 0);
+
+	REG_WRITE(DMCUB_GPINT_DATAOUT, 0);
+	REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 1);
+	REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 0);
+
+	REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 1);
+
+	return dataout;
+}
+
+union dmub_fw_boot_status dmub_dcn31_get_fw_boot_status(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	return status;
+}
+
+union dmub_fw_boot_options dmub_dcn31_get_fw_boot_option(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_options option;
+
+	option.all = REG_READ(DMCUB_SCRATCH14);
+	return option;
+}
+
+void dmub_dcn31_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params)
+{
+	union dmub_fw_boot_options boot_options = {0};
+
+	boot_options.bits.z10_disable = params->disable_z10;
+	boot_options.bits.dpia_supported = params->dpia_supported;
+	boot_options.bits.enable_dpia = params->disable_dpia ? 0 : 1;
+	boot_options.bits.usb4_cm_version = params->usb4_cm_version;
+	boot_options.bits.dpia_hpd_int_enable_supported = params->dpia_hpd_int_enable_supported;
+	boot_options.bits.power_optimization = params->power_optimization;
+	boot_options.bits.lower_hbr3_phy_ssc = params->lower_hbr3_phy_ssc;
+	boot_options.bits.override_hbr3_pll_vco = params->override_hbr3_pll_vco;
+
+	boot_options.bits.sel_mux_phy_c_d_phy_f_g = (dmub->asic == DMUB_ASIC_DCN31B) ? 1 : 0;
+	boot_options.bits.disable_dpia_bw_allocation = params->disable_dpia_bw_allocation;
+
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+void dmub_dcn31_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip)
+{
+	union dmub_fw_boot_options boot_options;
+	boot_options.all = REG_READ(DMCUB_SCRATCH14);
+	boot_options.bits.skip_phy_init_panel_sequence = skip;
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+void dmub_dcn31_setup_outbox0(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox0)
+{
+	REG_WRITE(DMCUB_OUTBOX0_BASE_ADDRESS, outbox0->base);
+
+	REG_WRITE(DMCUB_OUTBOX0_SIZE, outbox0->top - outbox0->base);
+}
+
+uint32_t dmub_dcn31_get_outbox0_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_OUTBOX0_WPTR);
+}
+
+void dmub_dcn31_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, rptr_offset);
+}
+
+uint32_t dmub_dcn31_get_current_time(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_TIMER_CURRENT);
+}
+
+void dmub_dcn31_get_diagnostic_data(struct dmub_srv *dmub)
+{
+	uint32_t is_dmub_enabled, is_soft_reset, is_sec_reset, is_pwait;
+	uint32_t is_traceport_enabled, is_cw0_enabled, is_cw6_enabled;
+	struct dmub_timeout_info timeout = {0};
+
+	if (!dmub)
+		return;
+
+	/* timeout data filled externally, cache before resetting memory */
+	timeout = dmub->debug.timeout_info;
+	memset(&dmub->debug, 0, sizeof(dmub->debug));
+	dmub->debug.timeout_info = timeout;
+
+	dmub->debug.dmcub_version = dmub->fw_version;
+
+	dmub->debug.scratch[0] = REG_READ(DMCUB_SCRATCH0);
+	dmub->debug.scratch[1] = REG_READ(DMCUB_SCRATCH1);
+	dmub->debug.scratch[2] = REG_READ(DMCUB_SCRATCH2);
+	dmub->debug.scratch[3] = REG_READ(DMCUB_SCRATCH3);
+	dmub->debug.scratch[4] = REG_READ(DMCUB_SCRATCH4);
+	dmub->debug.scratch[5] = REG_READ(DMCUB_SCRATCH5);
+	dmub->debug.scratch[6] = REG_READ(DMCUB_SCRATCH6);
+	dmub->debug.scratch[7] = REG_READ(DMCUB_SCRATCH7);
+	dmub->debug.scratch[8] = REG_READ(DMCUB_SCRATCH8);
+	dmub->debug.scratch[9] = REG_READ(DMCUB_SCRATCH9);
+	dmub->debug.scratch[10] = REG_READ(DMCUB_SCRATCH10);
+	dmub->debug.scratch[11] = REG_READ(DMCUB_SCRATCH11);
+	dmub->debug.scratch[12] = REG_READ(DMCUB_SCRATCH12);
+	dmub->debug.scratch[13] = REG_READ(DMCUB_SCRATCH13);
+	dmub->debug.scratch[14] = REG_READ(DMCUB_SCRATCH14);
+	dmub->debug.scratch[15] = REG_READ(DMCUB_SCRATCH15);
+
+	dmub->debug.undefined_address_fault_addr = REG_READ(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR);
+	dmub->debug.inst_fetch_fault_addr = REG_READ(DMCUB_INST_FETCH_FAULT_ADDR);
+	dmub->debug.data_write_fault_addr = REG_READ(DMCUB_DATA_WRITE_FAULT_ADDR);
+
+	dmub->debug.inbox1_rptr = REG_READ(DMCUB_INBOX1_RPTR);
+	dmub->debug.inbox1_wptr = REG_READ(DMCUB_INBOX1_WPTR);
+	dmub->debug.inbox1_size = REG_READ(DMCUB_INBOX1_SIZE);
+
+	dmub->debug.inbox0_rptr = REG_READ(DMCUB_INBOX0_RPTR);
+	dmub->debug.inbox0_wptr = REG_READ(DMCUB_INBOX0_WPTR);
+	dmub->debug.inbox0_size = REG_READ(DMCUB_INBOX0_SIZE);
+
+	dmub->debug.outbox1_rptr = REG_READ(DMCUB_OUTBOX1_RPTR);
+	dmub->debug.outbox1_wptr = REG_READ(DMCUB_OUTBOX1_WPTR);
+	dmub->debug.outbox1_size = REG_READ(DMCUB_OUTBOX1_SIZE);
+
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_dmub_enabled);
+	ASSERT(is_dmub_enabled <= 0xFF);
+	dmub->debug.is_dmcub_enabled = (uint8_t)is_dmub_enabled;
+
+	REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &is_pwait);
+	ASSERT(is_pwait <= 0xFF);
+	dmub->debug.is_pwait = (uint8_t)is_pwait;
+
+	REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &is_soft_reset);
+	ASSERT(is_soft_reset <= 0xFF);
+	dmub->debug.is_dmcub_soft_reset = (uint8_t)is_soft_reset;
+
+	REG_GET(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS, &is_sec_reset);
+	ASSERT(is_sec_reset <= 0xFF);
+	dmub->debug.is_dmcub_secure_reset = (uint8_t)is_sec_reset;
+
+	REG_GET(DMCUB_CNTL, DMCUB_TRACEPORT_EN, &is_traceport_enabled);
+	ASSERT(is_traceport_enabled <= 0xFF);
+	dmub->debug.is_traceport_en  = (uint8_t)is_traceport_enabled;
+
+	REG_GET(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE, &is_cw0_enabled);
+	ASSERT(is_cw0_enabled <= 0xFF);
+	dmub->debug.is_cw0_enabled = (uint8_t)is_cw0_enabled;
+
+	REG_GET(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE, &is_cw6_enabled);
+	ASSERT(is_cw6_enabled <= 0xFF);
+	dmub->debug.is_cw6_enabled = (uint8_t)is_cw6_enabled;
+}
+
+bool dmub_dcn31_should_detect(struct dmub_srv *dmub)
+{
+	uint32_t fw_boot_status = REG_READ(DMCUB_SCRATCH0);
+	bool should_detect = (fw_boot_status & DMUB_FW_BOOT_STATUS_BIT_DETECTION_REQUIRED) != 0;
+	return should_detect;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.h

@@ -0,0 +1,258 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN31_H_
+#define _DMUB_DCN31_H_
+
+#include "dmub_dcn20.h"
+
+struct dmub_srv;
+
+/* DCN31 register definitions. */
+
+#define DMUB_DCN31_REGS() \
+	DMUB_SR(DMCUB_CNTL) \
+	DMUB_SR(DMCUB_CNTL2) \
+	DMUB_SR(DMCUB_SEC_CNTL) \
+	DMUB_SR(DMCUB_INBOX0_SIZE) \
+	DMUB_SR(DMCUB_INBOX0_RPTR) \
+	DMUB_SR(DMCUB_INBOX0_WPTR) \
+	DMUB_SR(DMCUB_INBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_INBOX1_SIZE) \
+	DMUB_SR(DMCUB_INBOX1_RPTR) \
+	DMUB_SR(DMCUB_INBOX1_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX0_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX0_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX1_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX1_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_WPTR) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION4_OFFSET) \
+	DMUB_SR(DMCUB_REGION4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION5_OFFSET) \
+	DMUB_SR(DMCUB_REGION5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_SCRATCH0) \
+	DMUB_SR(DMCUB_SCRATCH1) \
+	DMUB_SR(DMCUB_SCRATCH2) \
+	DMUB_SR(DMCUB_SCRATCH3) \
+	DMUB_SR(DMCUB_SCRATCH4) \
+	DMUB_SR(DMCUB_SCRATCH5) \
+	DMUB_SR(DMCUB_SCRATCH6) \
+	DMUB_SR(DMCUB_SCRATCH7) \
+	DMUB_SR(DMCUB_SCRATCH8) \
+	DMUB_SR(DMCUB_SCRATCH9) \
+	DMUB_SR(DMCUB_SCRATCH10) \
+	DMUB_SR(DMCUB_SCRATCH11) \
+	DMUB_SR(DMCUB_SCRATCH12) \
+	DMUB_SR(DMCUB_SCRATCH13) \
+	DMUB_SR(DMCUB_SCRATCH14) \
+	DMUB_SR(DMCUB_SCRATCH15) \
+	DMUB_SR(DMCUB_GPINT_DATAIN1) \
+	DMUB_SR(DMCUB_GPINT_DATAOUT) \
+	DMUB_SR(CC_DC_PIPE_DIS) \
+	DMUB_SR(MMHUBBUB_SOFT_RESET) \
+	DMUB_SR(DCN_VM_FB_LOCATION_BASE) \
+	DMUB_SR(DCN_VM_FB_OFFSET) \
+	DMUB_SR(DMCUB_TIMER_CURRENT) \
+	DMUB_SR(DMCUB_INST_FETCH_FAULT_ADDR) \
+	DMUB_SR(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR) \
+	DMUB_SR(DMCUB_DATA_WRITE_FAULT_ADDR) \
+	DMUB_SR(DMCUB_INTERRUPT_ENABLE) \
+	DMUB_SR(DMCUB_INTERRUPT_ACK)
+
+#define DMUB_DCN31_FIELDS() \
+	DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_TRACEPORT_EN) \
+	DMUB_SF(DMCUB_CNTL2, DMCUB_SOFT_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_MEM_UNIT_ID) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_ENABLE) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_ENABLE) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_ENABLE) \
+	DMUB_SF(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE) \
+	DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET) \
+	DMUB_SF(DCN_VM_FB_LOCATION_BASE, FB_BASE) \
+	DMUB_SF(DCN_VM_FB_OFFSET, FB_OFFSET) \
+	DMUB_SF(DMCUB_INBOX0_WPTR, DMCUB_INBOX0_WPTR) \
+	DMUB_SF(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN) \
+	DMUB_SF(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS)
+
+struct dmub_srv_dcn31_reg_offset {
+#define DMUB_SR(reg) uint32_t reg;
+	DMUB_DCN31_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+};
+
+struct dmub_srv_dcn31_reg_shift {
+#define DMUB_SF(reg, field) uint8_t reg##__##field;
+	DMUB_DCN31_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_dcn31_reg_mask {
+#define DMUB_SF(reg, field) uint32_t reg##__##field;
+	DMUB_DCN31_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_dcn31_regs {
+	const struct dmub_srv_dcn31_reg_offset offset;
+	const struct dmub_srv_dcn31_reg_mask mask;
+	const struct dmub_srv_dcn31_reg_shift shift;
+};
+
+extern const struct dmub_srv_dcn31_regs dmub_srv_dcn31_regs;
+
+/* Hardware functions. */
+
+
+void dmub_dcn31_init(struct dmub_srv *dmub);
+
+void dmub_dcn31_reset(struct dmub_srv *dmub);
+
+void dmub_dcn31_reset_release(struct dmub_srv *dmub);
+
+void dmub_dcn31_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1);
+
+void dmub_dcn31_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6);
+
+void dmub_dcn31_setup_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *inbox1);
+
+uint32_t dmub_dcn31_get_inbox1_wptr(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn31_get_inbox1_rptr(struct dmub_srv *dmub);
+
+void dmub_dcn31_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset);
+
+void dmub_dcn31_setup_out_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox1);
+
+uint32_t dmub_dcn31_get_outbox1_wptr(struct dmub_srv *dmub);
+
+void dmub_dcn31_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+bool dmub_dcn31_is_hw_init(struct dmub_srv *dmub);
+
+bool dmub_dcn31_is_supported(struct dmub_srv *dmub);
+
+bool dmub_dcn31_is_psrsu_supported(struct dmub_srv *dmub);
+
+void dmub_dcn31_set_gpint(struct dmub_srv *dmub,
+			  union dmub_gpint_data_register reg);
+
+bool dmub_dcn31_is_gpint_acked(struct dmub_srv *dmub,
+			       union dmub_gpint_data_register reg);
+
+uint32_t dmub_dcn31_get_gpint_response(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn31_get_gpint_dataout(struct dmub_srv *dmub);
+
+void dmub_dcn31_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params);
+
+void dmub_dcn31_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip);
+
+union dmub_fw_boot_status dmub_dcn31_get_fw_boot_status(struct dmub_srv *dmub);
+
+union dmub_fw_boot_options dmub_dcn31_get_fw_boot_option(struct dmub_srv *dmub);
+
+void dmub_dcn31_setup_outbox0(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox0);
+
+uint32_t dmub_dcn31_get_outbox0_wptr(struct dmub_srv *dmub);
+
+void dmub_dcn31_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+uint32_t dmub_dcn31_get_current_time(struct dmub_srv *dmub);
+
+void dmub_dcn31_get_diagnostic_data(struct dmub_srv *dmub);
+
+bool dmub_dcn31_should_detect(struct dmub_srv *dmub);
+
+#endif /* _DMUB_DCN31_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn314.c

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn314.h"
+
+#include "dcn/dcn_3_1_4_offset.h"
+#include "dcn/dcn_3_1_4_sh_mask.h"
+
+#define DCN_BASE__INST0_SEG0                       0x00000012
+#define DCN_BASE__INST0_SEG1                       0x000000C0
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+#define DCN_BASE__INST0_SEG3                       0x00009000
+#define DCN_BASE__INST0_SEG4                       0x02403C00
+#define DCN_BASE__INST0_SEG5                       0
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs_dcn31
+#define REG_OFFSET_EXP(reg_name) (BASE(reg##reg_name##_BASE_IDX) + reg##reg_name)
+
+/* Registers. */
+
+const struct dmub_srv_dcn31_regs dmub_srv_dcn314_regs = {
+#define DMUB_SR(reg) REG_OFFSET_EXP(reg),
+	{
+		DMUB_DCN31_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_DCN31_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_DCN31_FIELDS() },
+#undef DMUB_SF
+};
+
+bool dmub_dcn314_is_psrsu_supported(struct dmub_srv *dmub)
+{
+	return dmub->fw_version >= DMUB_FW_VERSION(8, 0, 16);
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn314.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN314_H_
+#define _DMUB_DCN314_H_
+
+#include "dmub_dcn31.h"
+
+extern const struct dmub_srv_dcn31_regs dmub_srv_dcn314_regs;
+
+bool dmub_dcn314_is_psrsu_supported(struct dmub_srv *dmub);
+
+#endif /* _DMUB_DCN314_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn315.c

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn315.h"
+
+#include "dcn/dcn_3_1_5_offset.h"
+#include "dcn/dcn_3_1_5_sh_mask.h"
+
+#define DCN_BASE__INST0_SEG0                       0x00000012
+#define DCN_BASE__INST0_SEG1                       0x000000C0
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+#define DCN_BASE__INST0_SEG3                       0x00009000
+#define DCN_BASE__INST0_SEG4                       0x02403C00
+#define DCN_BASE__INST0_SEG5                       0
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs_dcn31
+#define REG_OFFSET_EXP(reg_name) (BASE(reg##reg_name##_BASE_IDX) + reg##reg_name)
+
+/* Registers. */
+
+const struct dmub_srv_dcn31_regs dmub_srv_dcn315_regs = {
+#define DMUB_SR(reg) REG_OFFSET_EXP(reg),
+	{
+		DMUB_DCN31_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_DCN315_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_DCN315_FIELDS() },
+#undef DMUB_SF
+};

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn315.h

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN315_H_
+#define _DMUB_DCN315_H_
+
+#include "dmub_dcn31.h"
+
+#define DMUB_DCN315_FIELDS() \
+	DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_TRACEPORT_EN) \
+	DMUB_SF(DMCUB_CNTL2, DMCUB_SOFT_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_MEM_UNIT_ID) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_ENABLE) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_ENABLE) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_ENABLE) \
+	DMUB_SF(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE) \
+	DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET) \
+	DMUB_SF(DCN_VM_FB_LOCATION_BASE, FB_BASE) \
+	DMUB_SF(DCN_VM_FB_OFFSET, FB_OFFSET) \
+	DMUB_SF(DMCUB_INBOX0_WPTR, DMCUB_INBOX0_WPTR) \
+	DMUB_SF(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT2_INT_EN) \
+	DMUB_SF(DMCUB_INTERRUPT_ACK, DMCUB_GPINT2_INT_ACK)
+
+extern const struct dmub_srv_dcn31_regs dmub_srv_dcn315_regs;
+
+#endif /* _DMUB_DCN315_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn316.c

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn316.h"
+
+#include "dcn/dcn_3_1_6_offset.h"
+#include "dcn/dcn_3_1_6_sh_mask.h"
+
+#define DCN_BASE__INST0_SEG0                       0x00000012
+#define DCN_BASE__INST0_SEG1                       0x000000C0
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+#define DCN_BASE__INST0_SEG3                       0x00009000
+#define DCN_BASE__INST0_SEG4                       0x02403C00
+#define DCN_BASE__INST0_SEG5                       0
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs_dcn31
+#define REG_OFFSET_EXP(reg_name) (BASE(reg##reg_name##_BASE_IDX) + reg##reg_name)
+
+/* Registers. */
+
+const struct dmub_srv_dcn31_regs dmub_srv_dcn316_regs = {
+#define DMUB_SR(reg) REG_OFFSET_EXP(reg),
+	{
+		DMUB_DCN31_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_DCN31_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_DCN31_FIELDS() },
+#undef DMUB_SF
+};

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn316.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN316_H_
+#define _DMUB_DCN316_H_
+
+#include "dmub_dcn31.h"
+
+extern const struct dmub_srv_dcn31_regs dmub_srv_dcn316_regs;
+
+#endif /* _DMUB_DCN316_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn32.c

@@ -0,0 +1,567 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn32.h"
+#include "dc/dc_types.h"
+#include "dc_hw_types.h"
+
+#include "dcn/dcn_3_2_0_offset.h"
+#include "dcn/dcn_3_2_0_sh_mask.h"
+
+#define BASE_INNER(seg) ctx->dcn_reg_offsets[seg]
+#define CTX dmub
+#define REGS dmub->regs_dcn32
+#define REG_OFFSET_EXP(reg_name) BASE(reg##reg_name##_BASE_IDX) + reg##reg_name
+
+void dmub_srv_dcn32_regs_init(struct dmub_srv *dmub,  struct dc_context *ctx)
+{
+	struct dmub_srv_dcn32_regs *regs = dmub->regs_dcn32;
+
+#define REG_STRUCT regs
+
+#define DMUB_SR(reg) REG_STRUCT->offset.reg = REG_OFFSET_EXP(reg);
+	DMUB_DCN32_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) REG_STRUCT->mask.reg##__##field = FD_MASK(reg, field);
+	DMUB_DCN32_FIELDS()
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) REG_STRUCT->shift.reg##__##field = FD_SHIFT(reg, field);
+	DMUB_DCN32_FIELDS()
+#undef DMUB_SF
+
+#undef REG_STRUCT
+}
+
+static void dmub_dcn32_get_fb_base_offset(struct dmub_srv *dmub,
+		uint64_t *fb_base,
+		uint64_t *fb_offset)
+{
+	uint32_t tmp;
+
+	if (dmub->soc_fb_info.fb_base || dmub->soc_fb_info.fb_offset) {
+		*fb_base = dmub->soc_fb_info.fb_base;
+		*fb_offset = dmub->soc_fb_info.fb_offset;
+		return;
+	}
+
+	REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp);
+	*fb_base = (uint64_t)tmp << 24;
+
+	REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp);
+	*fb_offset = (uint64_t)tmp << 24;
+}
+
+static inline void dmub_dcn32_translate_addr(const union dmub_addr *addr_in,
+		uint64_t fb_base,
+		uint64_t fb_offset,
+		union dmub_addr *addr_out)
+{
+	addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset;
+}
+
+void dmub_dcn32_reset(struct dmub_srv *dmub)
+{
+	union dmub_gpint_data_register cmd;
+	const uint32_t timeout_us = 1 * 1000 * 1000; //1s
+	const uint32_t poll_delay_us = 1; //1us
+	uint32_t i = 0;
+	uint32_t enabled, in_reset, scratch, pwait_mode;
+
+	REG_GET(DMCUB_CNTL,
+			DMCUB_ENABLE, &enabled);
+	REG_GET(DMCUB_CNTL2,
+			DMCUB_SOFT_RESET, &in_reset);
+
+	if (enabled && in_reset == 0) {
+		cmd.bits.status = 1;
+		cmd.bits.command_code = DMUB_GPINT__STOP_FW;
+		cmd.bits.param = 0;
+
+		dmub->hw_funcs.set_gpint(dmub, cmd);
+
+		for (; i < timeout_us; i++) {
+			scratch = REG_READ(DMCUB_SCRATCH7);
+			if (scratch == DMUB_GPINT__STOP_FW_RESPONSE)
+				break;
+
+			udelay(poll_delay_us);
+		}
+
+		for (; i < timeout_us; i++) {
+			REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &pwait_mode);
+			if (pwait_mode & (1 << 0))
+				break;
+
+			udelay(poll_delay_us);
+		}
+	}
+
+	if (enabled) {
+		REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 1);
+		udelay(1);
+		REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+	}
+
+	if (i >= timeout_us) {
+		/* timeout should never occur */
+		BREAK_TO_DEBUGGER();
+	}
+
+	REG_UPDATE(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_ENABLE, 0);
+	REG_UPDATE(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_ENABLE, 0);
+	REG_UPDATE(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_ENABLE, 0);
+	REG_UPDATE(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_ENABLE, 0);
+	REG_UPDATE(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE, 0);
+	REG_UPDATE(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_ENABLE, 0);
+
+	REG_WRITE(DMCUB_INBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_INBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX0_WPTR, 0);
+	REG_WRITE(DMCUB_SCRATCH0, 0);
+
+	/* Clear the GPINT command manually so we don't reset again. */
+	cmd.all = 0;
+	dmub->hw_funcs.set_gpint(dmub, cmd);
+}
+
+void dmub_dcn32_reset_release(struct dmub_srv *dmub)
+{
+	REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 0);
+	REG_WRITE(DMCUB_SCRATCH15, dmub->psp_version & 0x001100FF);
+	REG_UPDATE_2(DMCUB_CNTL, DMCUB_ENABLE, 1, DMCUB_TRACEPORT_EN, 1);
+	REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 0);
+}
+
+void dmub_dcn32_backdoor_load(struct dmub_srv *dmub,
+		const struct dmub_window *cw0,
+		const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+	uint64_t fb_base, fb_offset;
+
+	dmub_dcn32_get_fb_base_offset(dmub, &fb_base, &fb_offset);
+
+	/* reset and disable DMCUB and MMHUBBUB DMUIF */
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
+	REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+
+	dmub_dcn32_translate_addr(&cw0->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+			DMCUB_REGION3_CW0_ENABLE, 1);
+
+	dmub_dcn32_translate_addr(&cw1->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+			DMCUB_REGION3_CW1_ENABLE, 1);
+
+	REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
+			0x20);
+}
+
+void dmub_dcn32_backdoor_load_zfb_mode(struct dmub_srv *dmub,
+		      const struct dmub_window *cw0,
+		      const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+
+	/* reset and disable DMCUB and MMHUBBUB DMUIF */
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
+	REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+
+	offset = cw0->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+			DMCUB_REGION3_CW0_ENABLE, 1);
+
+	offset = cw1->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+			DMCUB_REGION3_CW1_ENABLE, 1);
+
+	REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
+			0x20);
+}
+
+void dmub_dcn32_setup_windows(struct dmub_srv *dmub,
+		const struct dmub_window *cw2,
+		const struct dmub_window *cw3,
+		const struct dmub_window *cw4,
+		const struct dmub_window *cw5,
+		const struct dmub_window *cw6,
+		const struct dmub_window *region6)
+{
+	(void)cw2;
+	(void)region6;
+	union dmub_addr offset;
+
+	offset = cw3->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base);
+	REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top,
+			DMCUB_REGION3_CW3_ENABLE, 1);
+
+	offset = cw4->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base);
+	REG_SET_2(DMCUB_REGION3_CW4_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW4_TOP_ADDRESS, cw4->region.top,
+			DMCUB_REGION3_CW4_ENABLE, 1);
+
+	offset = cw5->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base);
+	REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top,
+			DMCUB_REGION3_CW5_ENABLE, 1);
+
+	REG_WRITE(DMCUB_REGION5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION5_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION5_TOP_ADDRESS, 0,
+			DMCUB_REGION5_TOP_ADDRESS,
+			cw5->region.top - cw5->region.base - 1,
+			DMCUB_REGION5_ENABLE, 1);
+
+	offset = cw6->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base);
+	REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top,
+			DMCUB_REGION3_CW6_ENABLE, 1);
+}
+
+void dmub_dcn32_setup_mailbox(struct dmub_srv *dmub,
+		const struct dmub_region *inbox1)
+{
+	REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, inbox1->base);
+	REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base);
+}
+
+uint32_t dmub_dcn32_get_inbox1_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_WPTR);
+}
+
+uint32_t dmub_dcn32_get_inbox1_rptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_RPTR);
+}
+
+void dmub_dcn32_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset)
+{
+	REG_WRITE(DMCUB_INBOX1_WPTR, wptr_offset);
+}
+
+void dmub_dcn32_setup_out_mailbox(struct dmub_srv *dmub,
+		const struct dmub_region *outbox1)
+{
+	REG_WRITE(DMCUB_OUTBOX1_BASE_ADDRESS, outbox1->base);
+	REG_WRITE(DMCUB_OUTBOX1_SIZE, outbox1->top - outbox1->base);
+}
+
+uint32_t dmub_dcn32_get_outbox1_wptr(struct dmub_srv *dmub)
+{
+	/**
+	 * outbox1 wptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	return REG_READ(DMCUB_OUTBOX1_WPTR);
+}
+
+void dmub_dcn32_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	/**
+	 * outbox1 rptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, rptr_offset);
+}
+
+bool dmub_dcn32_is_hw_init(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+	uint32_t is_hw_init;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_hw_init);
+
+	return is_hw_init != 0 && status.bits.dal_fw;
+}
+
+bool dmub_dcn32_is_supported(struct dmub_srv *dmub)
+{
+	uint32_t supported = 0;
+
+	REG_GET(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE, &supported);
+
+	return supported;
+}
+
+void dmub_dcn32_set_gpint(struct dmub_srv *dmub,
+		union dmub_gpint_data_register reg)
+{
+	REG_WRITE(DMCUB_GPINT_DATAIN1, reg.all);
+}
+
+bool dmub_dcn32_is_gpint_acked(struct dmub_srv *dmub,
+		union dmub_gpint_data_register reg)
+{
+	union dmub_gpint_data_register test;
+
+	reg.bits.status = 0;
+	test.all = REG_READ(DMCUB_GPINT_DATAIN1);
+
+	return test.all == reg.all;
+}
+
+uint32_t dmub_dcn32_get_gpint_response(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH7);
+}
+
+uint32_t dmub_dcn32_get_gpint_dataout(struct dmub_srv *dmub)
+{
+	uint32_t dataout = REG_READ(DMCUB_GPINT_DATAOUT);
+
+	REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 0);
+
+	REG_WRITE(DMCUB_GPINT_DATAOUT, 0);
+	REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 1);
+	REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 0);
+
+	REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 1);
+
+	return dataout;
+}
+
+union dmub_fw_boot_status dmub_dcn32_get_fw_boot_status(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	return status;
+}
+
+void dmub_dcn32_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params)
+{
+	union dmub_fw_boot_options boot_options = {0};
+
+	boot_options.bits.z10_disable = params->disable_z10;
+
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+void dmub_dcn32_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip)
+{
+	union dmub_fw_boot_options boot_options;
+	boot_options.all = REG_READ(DMCUB_SCRATCH14);
+	boot_options.bits.skip_phy_init_panel_sequence = skip;
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+void dmub_dcn32_setup_outbox0(struct dmub_srv *dmub,
+		const struct dmub_region *outbox0)
+{
+	REG_WRITE(DMCUB_OUTBOX0_BASE_ADDRESS, outbox0->base);
+
+	REG_WRITE(DMCUB_OUTBOX0_SIZE, outbox0->top - outbox0->base);
+}
+
+uint32_t dmub_dcn32_get_outbox0_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_OUTBOX0_WPTR);
+}
+
+void dmub_dcn32_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, rptr_offset);
+}
+
+uint32_t dmub_dcn32_get_current_time(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_TIMER_CURRENT);
+}
+
+void dmub_dcn32_get_diagnostic_data(struct dmub_srv *dmub)
+{
+	uint32_t is_dmub_enabled, is_soft_reset, is_pwait;
+	uint32_t is_traceport_enabled, is_cw6_enabled;
+	struct dmub_timeout_info timeout = {0};
+
+	if (!dmub)
+		return;
+
+	/* timeout data filled externally, cache before resetting memory */
+	timeout = dmub->debug.timeout_info;
+	memset(&dmub->debug, 0, sizeof(dmub->debug));
+	dmub->debug.timeout_info = timeout;
+
+	dmub->debug.dmcub_version = dmub->fw_version;
+
+	dmub->debug.scratch[0] = REG_READ(DMCUB_SCRATCH0);
+	dmub->debug.scratch[1] = REG_READ(DMCUB_SCRATCH1);
+	dmub->debug.scratch[2] = REG_READ(DMCUB_SCRATCH2);
+	dmub->debug.scratch[3] = REG_READ(DMCUB_SCRATCH3);
+	dmub->debug.scratch[4] = REG_READ(DMCUB_SCRATCH4);
+	dmub->debug.scratch[5] = REG_READ(DMCUB_SCRATCH5);
+	dmub->debug.scratch[6] = REG_READ(DMCUB_SCRATCH6);
+	dmub->debug.scratch[7] = REG_READ(DMCUB_SCRATCH7);
+	dmub->debug.scratch[8] = REG_READ(DMCUB_SCRATCH8);
+	dmub->debug.scratch[9] = REG_READ(DMCUB_SCRATCH9);
+	dmub->debug.scratch[10] = REG_READ(DMCUB_SCRATCH10);
+	dmub->debug.scratch[11] = REG_READ(DMCUB_SCRATCH11);
+	dmub->debug.scratch[12] = REG_READ(DMCUB_SCRATCH12);
+	dmub->debug.scratch[13] = REG_READ(DMCUB_SCRATCH13);
+	dmub->debug.scratch[14] = REG_READ(DMCUB_SCRATCH14);
+	dmub->debug.scratch[15] = REG_READ(DMCUB_SCRATCH15);
+	dmub->debug.scratch[16] = REG_READ(DMCUB_SCRATCH16);
+
+	dmub->debug.undefined_address_fault_addr = REG_READ(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR);
+	dmub->debug.inst_fetch_fault_addr = REG_READ(DMCUB_INST_FETCH_FAULT_ADDR);
+	dmub->debug.data_write_fault_addr = REG_READ(DMCUB_DATA_WRITE_FAULT_ADDR);
+
+	dmub->debug.inbox1_rptr = REG_READ(DMCUB_INBOX1_RPTR);
+	dmub->debug.inbox1_wptr = REG_READ(DMCUB_INBOX1_WPTR);
+	dmub->debug.inbox1_size = REG_READ(DMCUB_INBOX1_SIZE);
+
+	dmub->debug.inbox0_rptr = REG_READ(DMCUB_INBOX0_RPTR);
+	dmub->debug.inbox0_wptr = REG_READ(DMCUB_INBOX0_WPTR);
+	dmub->debug.inbox0_size = REG_READ(DMCUB_INBOX0_SIZE);
+
+	dmub->debug.outbox1_rptr = REG_READ(DMCUB_OUTBOX1_RPTR);
+	dmub->debug.outbox1_wptr = REG_READ(DMCUB_OUTBOX1_WPTR);
+	dmub->debug.outbox1_size = REG_READ(DMCUB_OUTBOX1_SIZE);
+
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_dmub_enabled);
+	ASSERT(is_dmub_enabled <= 0xFF);
+	dmub->debug.is_dmcub_enabled = (uint8_t)is_dmub_enabled;
+
+	REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &is_pwait);
+	ASSERT(is_pwait <= 0xFF);
+	dmub->debug.is_pwait = (uint8_t)is_pwait;
+
+	REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &is_soft_reset);
+	ASSERT(is_soft_reset <= 0xFF);
+	dmub->debug.is_dmcub_soft_reset = (uint8_t)is_soft_reset;
+
+	REG_GET(DMCUB_CNTL, DMCUB_TRACEPORT_EN, &is_traceport_enabled);
+	ASSERT(is_traceport_enabled <= 0xFF);
+	dmub->debug.is_traceport_en  = (uint8_t)is_traceport_enabled;
+
+	REG_GET(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE, &is_cw6_enabled);
+	ASSERT(is_cw6_enabled <= 0xFF);
+	dmub->debug.is_cw6_enabled = (uint8_t)is_cw6_enabled;
+
+	dmub->debug.gpint_datain0 = REG_READ(DMCUB_GPINT_DATAIN0);
+}
+void dmub_dcn32_configure_dmub_in_system_memory(struct dmub_srv *dmub)
+{
+	/* DMCUB_REGION3_TMR_AXI_SPACE values:
+	 * 0b011 (0x3) - FB physical address
+	 * 0b100 (0x4) - GPU virtual address
+	 *
+	 * Default value is 0x3 (FB Physical address for TMR). When programming
+	 * DMUB to be in system memory, change to 0x4. The system memory allocated
+	 * is accessible by both GPU and CPU, so we use GPU virtual address.
+	 */
+	REG_WRITE(DMCUB_REGION3_TMR_AXI_SPACE, 0x4);
+}
+
+void dmub_dcn32_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data)
+{
+	REG_WRITE(DMCUB_INBOX0_WPTR, data.inbox0_cmd_common.all);
+}
+
+void dmub_dcn32_clear_inbox0_ack_register(struct dmub_srv *dmub)
+{
+	REG_WRITE(DMCUB_SCRATCH17, 0);
+}
+
+uint32_t dmub_dcn32_read_inbox0_ack_register(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH17);
+}
+
+void dmub_dcn32_save_surf_addr(struct dmub_srv *dmub, const struct dc_plane_address *addr, uint8_t subvp_index)
+{
+	uint32_t index = 0;
+
+	if (subvp_index == 0) {
+		index = REG_READ(DMCUB_SCRATCH15);
+		if (index) {
+			REG_WRITE(DMCUB_SCRATCH9, addr->grph.addr.low_part);
+			REG_WRITE(DMCUB_SCRATCH11, addr->grph.meta_addr.low_part);
+		} else {
+			REG_WRITE(DMCUB_SCRATCH12,  addr->grph.addr.low_part);
+			REG_WRITE(DMCUB_SCRATCH13, addr->grph.meta_addr.low_part);
+		}
+		REG_WRITE(DMCUB_SCRATCH15, !index);
+	} else if (subvp_index == 1) {
+		index = REG_READ(DMCUB_SCRATCH23);
+		if (index) {
+			REG_WRITE(DMCUB_SCRATCH18, addr->grph.addr.low_part);
+			REG_WRITE(DMCUB_SCRATCH19, addr->grph.meta_addr.low_part);
+		} else {
+			REG_WRITE(DMCUB_SCRATCH20,  addr->grph.addr.low_part);
+			REG_WRITE(DMCUB_SCRATCH22, addr->grph.meta_addr.low_part);
+		}
+		REG_WRITE(DMCUB_SCRATCH23, !index);
+	} else {
+		return;
+	}
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn32.h

@@ -0,0 +1,273 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN32_H_
+#define _DMUB_DCN32_H_
+
+#include "dmub_dcn31.h"
+
+struct dmub_srv;
+
+/* DCN32 register definitions. */
+
+#define DMUB_DCN32_REGS() \
+	DMUB_SR(DMCUB_CNTL) \
+	DMUB_SR(DMCUB_CNTL2) \
+	DMUB_SR(DMCUB_SEC_CNTL) \
+	DMUB_SR(DMCUB_INBOX0_SIZE) \
+	DMUB_SR(DMCUB_INBOX0_RPTR) \
+	DMUB_SR(DMCUB_INBOX0_WPTR) \
+	DMUB_SR(DMCUB_INBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_INBOX1_SIZE) \
+	DMUB_SR(DMCUB_INBOX1_RPTR) \
+	DMUB_SR(DMCUB_INBOX1_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX0_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX0_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX1_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX1_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_WPTR) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION4_OFFSET) \
+	DMUB_SR(DMCUB_REGION4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION5_OFFSET) \
+	DMUB_SR(DMCUB_REGION5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION6_OFFSET) \
+	DMUB_SR(DMCUB_REGION6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_SCRATCH0) \
+	DMUB_SR(DMCUB_SCRATCH1) \
+	DMUB_SR(DMCUB_SCRATCH2) \
+	DMUB_SR(DMCUB_SCRATCH3) \
+	DMUB_SR(DMCUB_SCRATCH4) \
+	DMUB_SR(DMCUB_SCRATCH5) \
+	DMUB_SR(DMCUB_SCRATCH6) \
+	DMUB_SR(DMCUB_SCRATCH7) \
+	DMUB_SR(DMCUB_SCRATCH8) \
+	DMUB_SR(DMCUB_SCRATCH9) \
+	DMUB_SR(DMCUB_SCRATCH10) \
+	DMUB_SR(DMCUB_SCRATCH11) \
+	DMUB_SR(DMCUB_SCRATCH12) \
+	DMUB_SR(DMCUB_SCRATCH13) \
+	DMUB_SR(DMCUB_SCRATCH14) \
+	DMUB_SR(DMCUB_SCRATCH15) \
+	DMUB_SR(DMCUB_SCRATCH16) \
+	DMUB_SR(DMCUB_SCRATCH17) \
+	DMUB_SR(DMCUB_SCRATCH18) \
+	DMUB_SR(DMCUB_SCRATCH19) \
+	DMUB_SR(DMCUB_SCRATCH20) \
+	DMUB_SR(DMCUB_SCRATCH21) \
+	DMUB_SR(DMCUB_SCRATCH22) \
+	DMUB_SR(DMCUB_SCRATCH23) \
+	DMUB_SR(DMCUB_GPINT_DATAIN0) \
+	DMUB_SR(DMCUB_GPINT_DATAIN1) \
+	DMUB_SR(DMCUB_GPINT_DATAOUT) \
+	DMUB_SR(CC_DC_PIPE_DIS) \
+	DMUB_SR(MMHUBBUB_SOFT_RESET) \
+	DMUB_SR(DCN_VM_FB_LOCATION_BASE) \
+	DMUB_SR(DCN_VM_FB_OFFSET) \
+	DMUB_SR(DMCUB_TIMER_CURRENT) \
+	DMUB_SR(DMCUB_INST_FETCH_FAULT_ADDR) \
+	DMUB_SR(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR) \
+	DMUB_SR(DMCUB_DATA_WRITE_FAULT_ADDR) \
+	DMUB_SR(DMCUB_REGION3_TMR_AXI_SPACE) \
+	DMUB_SR(DMCUB_INTERRUPT_ENABLE) \
+	DMUB_SR(DMCUB_INTERRUPT_ACK)
+
+#define DMUB_DCN32_FIELDS() \
+	DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_TRACEPORT_EN) \
+	DMUB_SF(DMCUB_CNTL2, DMCUB_SOFT_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_MEM_UNIT_ID) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_ENABLE) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_ENABLE) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_ENABLE) \
+	DMUB_SF(DMCUB_REGION6_TOP_ADDRESS, DMCUB_REGION6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION6_TOP_ADDRESS, DMCUB_REGION6_ENABLE) \
+	DMUB_SF(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE) \
+	DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET) \
+	DMUB_SF(DCN_VM_FB_LOCATION_BASE, FB_BASE) \
+	DMUB_SF(DCN_VM_FB_OFFSET, FB_OFFSET) \
+	DMUB_SF(DMCUB_INBOX0_WPTR, DMCUB_INBOX0_WPTR) \
+	DMUB_SF(DMCUB_REGION3_TMR_AXI_SPACE, DMCUB_REGION3_TMR_AXI_SPACE) \
+	DMUB_SF(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN) \
+	DMUB_SF(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS)
+
+struct dmub_srv_dcn32_reg_offset {
+#define DMUB_SR(reg) uint32_t reg;
+	DMUB_DCN32_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+};
+
+struct dmub_srv_dcn32_reg_shift {
+#define DMUB_SF(reg, field) uint8_t reg##__##field;
+	DMUB_DCN32_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_dcn32_reg_mask {
+#define DMUB_SF(reg, field) uint32_t reg##__##field;
+	DMUB_DCN32_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_dcn32_regs {
+	struct dmub_srv_dcn32_reg_offset offset;
+	struct dmub_srv_dcn32_reg_mask mask;
+	struct dmub_srv_dcn32_reg_shift shift;
+};
+
+void dmub_dcn32_reset(struct dmub_srv *dmub);
+
+void dmub_dcn32_reset_release(struct dmub_srv *dmub);
+
+void dmub_dcn32_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1);
+
+void dmub_dcn32_backdoor_load_zfb_mode(struct dmub_srv *dmub,
+		      const struct dmub_window *cw0,
+		      const struct dmub_window *cw1);
+
+void dmub_dcn32_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6);
+
+void dmub_dcn32_setup_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *inbox1);
+
+uint32_t dmub_dcn32_get_inbox1_wptr(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn32_get_inbox1_rptr(struct dmub_srv *dmub);
+
+void dmub_dcn32_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset);
+
+void dmub_dcn32_setup_out_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox1);
+
+uint32_t dmub_dcn32_get_outbox1_wptr(struct dmub_srv *dmub);
+
+void dmub_dcn32_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+bool dmub_dcn32_is_hw_init(struct dmub_srv *dmub);
+
+bool dmub_dcn32_is_supported(struct dmub_srv *dmub);
+
+void dmub_dcn32_set_gpint(struct dmub_srv *dmub,
+			  union dmub_gpint_data_register reg);
+
+bool dmub_dcn32_is_gpint_acked(struct dmub_srv *dmub,
+			       union dmub_gpint_data_register reg);
+
+uint32_t dmub_dcn32_get_gpint_response(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn32_get_gpint_dataout(struct dmub_srv *dmub);
+
+void dmub_dcn32_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params);
+
+void dmub_dcn32_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip);
+
+union dmub_fw_boot_status dmub_dcn32_get_fw_boot_status(struct dmub_srv *dmub);
+
+void dmub_dcn32_setup_outbox0(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox0);
+
+uint32_t dmub_dcn32_get_outbox0_wptr(struct dmub_srv *dmub);
+
+void dmub_dcn32_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+uint32_t dmub_dcn32_get_current_time(struct dmub_srv *dmub);
+
+void dmub_dcn32_get_diagnostic_data(struct dmub_srv *dmub);
+
+void dmub_dcn32_configure_dmub_in_system_memory(struct dmub_srv *dmub);
+void dmub_dcn32_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data);
+void dmub_dcn32_clear_inbox0_ack_register(struct dmub_srv *dmub);
+uint32_t dmub_dcn32_read_inbox0_ack_register(struct dmub_srv *dmub);
+void dmub_dcn32_save_surf_addr(struct dmub_srv *dmub, const struct dc_plane_address *addr, uint8_t subvp_index);
+
+void dmub_srv_dcn32_regs_init(struct dmub_srv *dmub, struct dc_context *ctx);
+
+#endif /* _DMUB_DCN32_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c

@@ -0,0 +1,620 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../dmub_srv.h"
+#include "dc_types.h"
+#include "dmub_reg.h"
+#include "dmub_dcn35.h"
+#include "dc/dc_types.h"
+
+#include "dcn/dcn_3_5_0_offset.h"
+#include "dcn/dcn_3_5_0_sh_mask.h"
+
+#define BASE_INNER(seg) ctx->dcn_reg_offsets[seg]
+#define CTX dmub
+#define REGS dmub->regs_dcn35
+#define REG_OFFSET_EXP(reg_name) BASE(reg##reg_name##_BASE_IDX) + reg##reg_name
+
+void dmub_srv_dcn35_regs_init(struct dmub_srv *dmub, struct dc_context *ctx) {
+	struct dmub_srv_dcn35_regs *regs = dmub->regs_dcn35;
+#define REG_STRUCT regs
+
+#define DMUB_SR(reg) REG_STRUCT->offset.reg = REG_OFFSET_EXP(reg);
+	DMUB_DCN35_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) REG_STRUCT->mask.reg##__##field = FD_MASK(reg, field);
+	DMUB_DCN35_FIELDS()
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) REG_STRUCT->shift.reg##__##field = FD_SHIFT(reg, field);
+	DMUB_DCN35_FIELDS()
+#undef DMUB_SF
+#undef REG_STRUCT
+}
+
+static void dmub_dcn35_get_fb_base_offset(struct dmub_srv *dmub,
+					  uint64_t *fb_base,
+					  uint64_t *fb_offset)
+{
+	uint32_t tmp;
+
+	/*
+	if (dmub->soc_fb_info.fb_base || dmub->soc_fb_info.fb_offset) {
+		*fb_base = dmub->soc_fb_info.fb_base;
+		*fb_offset = dmub->soc_fb_info.fb_offset;
+		return;
+	}
+	*/
+
+	REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp);
+	*fb_base = (uint64_t)tmp << 24;
+
+	REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp);
+	*fb_offset = (uint64_t)tmp << 24;
+}
+
+static inline void dmub_dcn35_translate_addr(const union dmub_addr *addr_in,
+					     uint64_t fb_base,
+					     uint64_t fb_offset,
+					     union dmub_addr *addr_out)
+{
+	addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset;
+}
+
+void dmub_dcn35_reset(struct dmub_srv *dmub)
+{
+	union dmub_gpint_data_register cmd;
+	const uint32_t timeout = 100000;
+	uint32_t in_reset, is_enabled, scratch, i, pwait_mode;
+
+	REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &in_reset);
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enabled);
+
+	if (in_reset == 0 && is_enabled != 0) {
+		cmd.bits.status = 1;
+		cmd.bits.command_code = DMUB_GPINT__STOP_FW;
+		cmd.bits.param = 0;
+
+		dmub->hw_funcs.set_gpint(dmub, cmd);
+
+		for (i = 0; i < timeout; ++i) {
+			if (dmub->hw_funcs.is_gpint_acked(dmub, cmd))
+				break;
+
+			udelay(1);
+		}
+
+		for (i = 0; i < timeout; ++i) {
+			scratch = REG_READ(DMCUB_SCRATCH7);
+			if (scratch == DMUB_GPINT__STOP_FW_RESPONSE)
+				break;
+
+			udelay(1);
+		}
+
+		for (i = 0; i < timeout; ++i) {
+			REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &pwait_mode);
+			if (pwait_mode & (1 << 0))
+				break;
+
+			udelay(1);
+		}
+		/* Force reset in case we timed out, DMCUB is likely hung. */
+	}
+
+	if (is_enabled) {
+		REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 1);
+		udelay(1);
+		REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+	}
+
+	REG_WRITE(DMCUB_INBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_INBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX0_WPTR, 0);
+	REG_WRITE(DMCUB_SCRATCH0, 0);
+
+	/* Clear the GPINT command manually so we don't send anything during boot. */
+	cmd.all = 0;
+	dmub->hw_funcs.set_gpint(dmub, cmd);
+}
+
+void dmub_dcn35_reset_release(struct dmub_srv *dmub)
+{
+	REG_WRITE(DMCUB_SCRATCH15, dmub->psp_version & 0x001100FF);
+
+	REG_UPDATE_3(DMU_CLK_CNTL,
+		     LONO_DISPCLK_GATE_DISABLE, 1,
+		     LONO_SOCCLK_GATE_DISABLE, 1,
+		     LONO_DMCUBCLK_GATE_DISABLE, 1);
+
+	REG_UPDATE_2(DMCUB_CNTL, DMCUB_ENABLE, 1, DMCUB_TRACEPORT_EN, 1);
+	REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 0);
+	REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 0);
+}
+
+void dmub_dcn35_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+	uint64_t fb_base, fb_offset;
+
+	dmub_dcn35_get_fb_base_offset(dmub, &fb_base, &fb_offset);
+
+	dmub_dcn35_translate_addr(&cw0->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+		  DMCUB_REGION3_CW0_ENABLE, 1);
+
+	dmub_dcn35_translate_addr(&cw1->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+		  DMCUB_REGION3_CW1_ENABLE, 1);
+
+	/* TODO: Do we need to set DMCUB_MEM_UNIT_ID? */
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0);
+}
+
+void dmub_dcn35_backdoor_load_zfb_mode(struct dmub_srv *dmub,
+		      const struct dmub_window *cw0,
+		      const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
+	offset = cw0->offset;
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+			DMCUB_REGION3_CW0_ENABLE, 1);
+	offset = cw1->offset;
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+			DMCUB_REGION3_CW1_ENABLE, 1);
+	REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
+			0x20);
+}
+void dmub_dcn35_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6)
+{
+	(void)cw2;
+	union dmub_addr offset;
+
+	offset = cw3->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base);
+	REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top,
+		  DMCUB_REGION3_CW3_ENABLE, 1);
+
+	offset = cw4->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base);
+	REG_SET_2(DMCUB_REGION3_CW4_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW4_TOP_ADDRESS, cw4->region.top,
+		  DMCUB_REGION3_CW4_ENABLE, 1);
+
+	offset = cw5->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base);
+	REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top,
+		  DMCUB_REGION3_CW5_ENABLE, 1);
+
+	REG_WRITE(DMCUB_REGION5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION5_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION5_TOP_ADDRESS, 0,
+		  DMCUB_REGION5_TOP_ADDRESS,
+		  cw5->region.top - cw5->region.base - 1,
+		  DMCUB_REGION5_ENABLE, 1);
+
+	offset = cw6->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base);
+	REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top,
+		  DMCUB_REGION3_CW6_ENABLE, 1);
+
+	offset = region6->offset;
+
+	REG_WRITE(DMCUB_REGION6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION6_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION6_TOP_ADDRESS, 0,
+		  DMCUB_REGION6_TOP_ADDRESS,
+		  region6->region.top - region6->region.base - 1,
+		  DMCUB_REGION6_ENABLE, 1);
+}
+
+void dmub_dcn35_setup_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *inbox1)
+{
+	REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, inbox1->base);
+	REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base);
+}
+
+uint32_t dmub_dcn35_get_inbox1_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_WPTR);
+}
+
+uint32_t dmub_dcn35_get_inbox1_rptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_RPTR);
+}
+
+void dmub_dcn35_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset)
+{
+	REG_WRITE(DMCUB_INBOX1_WPTR, wptr_offset);
+}
+
+void dmub_dcn35_setup_out_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox1)
+{
+	REG_WRITE(DMCUB_OUTBOX1_BASE_ADDRESS, outbox1->base);
+	REG_WRITE(DMCUB_OUTBOX1_SIZE, outbox1->top - outbox1->base);
+}
+
+uint32_t dmub_dcn35_get_outbox1_wptr(struct dmub_srv *dmub)
+{
+	/**
+	 * outbox1 wptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	return REG_READ(DMCUB_OUTBOX1_WPTR);
+}
+
+void dmub_dcn35_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	/**
+	 * outbox1 rptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, rptr_offset);
+}
+
+bool dmub_dcn35_is_hw_init(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+	uint32_t is_enable;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enable);
+
+	return is_enable != 0 && status.bits.dal_fw;
+}
+
+bool dmub_dcn35_is_supported(struct dmub_srv *dmub)
+{
+	uint32_t supported = 0;
+
+	REG_GET(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE, &supported);
+
+	return supported;
+}
+
+void dmub_dcn35_set_gpint(struct dmub_srv *dmub,
+			  union dmub_gpint_data_register reg)
+{
+	REG_WRITE(DMCUB_GPINT_DATAIN1, reg.all);
+}
+
+bool dmub_dcn35_is_gpint_acked(struct dmub_srv *dmub,
+			       union dmub_gpint_data_register reg)
+{
+	union dmub_gpint_data_register test;
+
+	reg.bits.status = 0;
+	test.all = REG_READ(DMCUB_GPINT_DATAIN1);
+
+	return test.all == reg.all;
+}
+
+uint32_t dmub_dcn35_get_gpint_response(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH7);
+}
+
+uint32_t dmub_dcn35_get_gpint_dataout(struct dmub_srv *dmub)
+{
+	uint32_t dataout = REG_READ(DMCUB_GPINT_DATAOUT);
+
+	REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 0);
+
+	REG_WRITE(DMCUB_GPINT_DATAOUT, 0);
+	REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 1);
+	REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 0);
+
+	REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 1);
+
+	return dataout;
+}
+
+union dmub_fw_boot_status dmub_dcn35_get_fw_boot_status(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	return status;
+}
+
+union dmub_fw_boot_options dmub_dcn35_get_fw_boot_option(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_options option;
+
+	option.all = REG_READ(DMCUB_SCRATCH14);
+	return option;
+}
+
+void dmub_dcn35_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params)
+{
+	union dmub_fw_boot_options boot_options = {0};
+
+	if (!dmub->dpia_supported) {
+		dmub->dpia_supported = dmub_dcn35_get_fw_boot_option(dmub).bits.enable_dpia != 0;
+	}
+
+	boot_options.bits.z10_disable = params->disable_z10;
+	boot_options.bits.dpia_supported = params->dpia_supported;
+	boot_options.bits.enable_dpia = dmub->dpia_supported && !params->disable_dpia;
+	boot_options.bits.usb4_cm_version = params->usb4_cm_version;
+	boot_options.bits.dpia_hpd_int_enable_supported = params->dpia_hpd_int_enable_supported;
+	boot_options.bits.power_optimization = params->power_optimization;
+	boot_options.bits.disable_clk_ds = params->disallow_dispclk_dppclk_ds;
+	boot_options.bits.disable_clk_gate = params->disable_clock_gate;
+	boot_options.bits.ips_disable = params->disable_ips;
+	boot_options.bits.ips_sequential_ono = params->ips_sequential_ono;
+	boot_options.bits.disable_sldo_opt = params->disable_sldo_opt;
+	boot_options.bits.enable_non_transparent_setconfig = params->enable_non_transparent_setconfig;
+	boot_options.bits.lower_hbr3_phy_ssc = params->lower_hbr3_phy_ssc;
+	boot_options.bits.disable_dpia_bw_allocation = params->disable_dpia_bw_allocation;
+	boot_options.bits.bootcrc_en_at_preos = dmub_dcn35_get_fw_boot_option(dmub).bits.bootcrc_en_at_preos;
+	boot_options.bits.bootcrc_en_at_S0i3 = dmub_dcn35_get_fw_boot_option(dmub).bits.bootcrc_en_at_S0i3;
+	boot_options.bits.bootcrc_boot_mode = dmub_dcn35_get_fw_boot_option(dmub).bits.bootcrc_boot_mode;
+
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+void dmub_dcn35_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip)
+{
+	union dmub_fw_boot_options boot_options;
+	boot_options.all = REG_READ(DMCUB_SCRATCH14);
+	boot_options.bits.skip_phy_init_panel_sequence = skip;
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+void dmub_dcn35_setup_outbox0(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox0)
+{
+	REG_WRITE(DMCUB_OUTBOX0_BASE_ADDRESS, outbox0->base);
+
+	REG_WRITE(DMCUB_OUTBOX0_SIZE, outbox0->top - outbox0->base);
+}
+
+uint32_t dmub_dcn35_get_outbox0_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_OUTBOX0_WPTR);
+}
+
+void dmub_dcn35_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, rptr_offset);
+}
+
+uint32_t dmub_dcn35_get_current_time(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_TIMER_CURRENT);
+}
+
+void dmub_dcn35_get_diagnostic_data(struct dmub_srv *dmub)
+{
+	uint32_t is_dmub_enabled, is_soft_reset, is_pwait;
+	uint32_t is_traceport_enabled, is_cw6_enabled;
+	struct dmub_timeout_info timeout = {0};
+
+	if (!dmub)
+		return;
+
+	/* timeout data filled externally, cache before resetting memory */
+	timeout = dmub->debug.timeout_info;
+	memset(&dmub->debug, 0, sizeof(dmub->debug));
+	dmub->debug.timeout_info = timeout;
+
+	dmub->debug.dmcub_version = dmub->fw_version;
+
+	dmub->debug.scratch[0] = REG_READ(DMCUB_SCRATCH0);
+	dmub->debug.scratch[1] = REG_READ(DMCUB_SCRATCH1);
+	dmub->debug.scratch[2] = REG_READ(DMCUB_SCRATCH2);
+	dmub->debug.scratch[3] = REG_READ(DMCUB_SCRATCH3);
+	dmub->debug.scratch[4] = REG_READ(DMCUB_SCRATCH4);
+	dmub->debug.scratch[5] = REG_READ(DMCUB_SCRATCH5);
+	dmub->debug.scratch[6] = REG_READ(DMCUB_SCRATCH6);
+	dmub->debug.scratch[7] = REG_READ(DMCUB_SCRATCH7);
+	dmub->debug.scratch[8] = REG_READ(DMCUB_SCRATCH8);
+	dmub->debug.scratch[9] = REG_READ(DMCUB_SCRATCH9);
+	dmub->debug.scratch[10] = REG_READ(DMCUB_SCRATCH10);
+	dmub->debug.scratch[11] = REG_READ(DMCUB_SCRATCH11);
+	dmub->debug.scratch[12] = REG_READ(DMCUB_SCRATCH12);
+	dmub->debug.scratch[13] = REG_READ(DMCUB_SCRATCH13);
+	dmub->debug.scratch[14] = REG_READ(DMCUB_SCRATCH14);
+	dmub->debug.scratch[15] = REG_READ(DMCUB_SCRATCH15);
+	dmub->debug.scratch[16] = REG_READ(DMCUB_SCRATCH16);
+
+	dmub->debug.undefined_address_fault_addr = REG_READ(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR);
+	dmub->debug.inst_fetch_fault_addr = REG_READ(DMCUB_INST_FETCH_FAULT_ADDR);
+	dmub->debug.data_write_fault_addr = REG_READ(DMCUB_DATA_WRITE_FAULT_ADDR);
+
+	dmub->debug.inbox1_rptr = REG_READ(DMCUB_INBOX1_RPTR);
+	dmub->debug.inbox1_wptr = REG_READ(DMCUB_INBOX1_WPTR);
+	dmub->debug.inbox1_size = REG_READ(DMCUB_INBOX1_SIZE);
+
+	dmub->debug.inbox0_rptr = REG_READ(DMCUB_INBOX0_RPTR);
+	dmub->debug.inbox0_wptr = REG_READ(DMCUB_INBOX0_WPTR);
+	dmub->debug.inbox0_size = REG_READ(DMCUB_INBOX0_SIZE);
+
+	dmub->debug.outbox1_rptr = REG_READ(DMCUB_OUTBOX1_RPTR);
+	dmub->debug.outbox1_wptr = REG_READ(DMCUB_OUTBOX1_WPTR);
+	dmub->debug.outbox1_size = REG_READ(DMCUB_OUTBOX1_SIZE);
+
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_dmub_enabled);
+	ASSERT(is_dmub_enabled <= 0xFF);
+	dmub->debug.is_dmcub_enabled = (uint8_t)is_dmub_enabled;
+
+	REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &is_pwait);
+	ASSERT(is_pwait <= 0xFF);
+	dmub->debug.is_pwait = (uint8_t)is_pwait;
+
+	REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &is_soft_reset);
+	ASSERT(is_soft_reset <= 0xFF);
+	dmub->debug.is_dmcub_soft_reset = (uint8_t)is_soft_reset;
+
+	REG_GET(DMCUB_CNTL, DMCUB_TRACEPORT_EN, &is_traceport_enabled);
+	ASSERT(is_traceport_enabled <= 0xFF);
+	dmub->debug.is_traceport_en  = (uint8_t)is_traceport_enabled;
+
+	REG_GET(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE, &is_cw6_enabled);
+	ASSERT(is_cw6_enabled <= 0xFF);
+	dmub->debug.is_cw6_enabled = (uint8_t)is_cw6_enabled;
+
+	dmub->debug.gpint_datain0 = REG_READ(DMCUB_GPINT_DATAIN0);
+}
+
+bool dmub_dcn35_get_preos_fw_info(struct dmub_srv *dmub)
+{
+	uint64_t region3_cw5_offset;
+	uint32_t top_addr, top_addr_enable, offset_low;
+	uint32_t offset_high, base_addr, fw_version;
+	bool is_vbios_fw = false;
+
+	memset(&dmub->preos_info, 0, sizeof(dmub->preos_info));
+
+	fw_version = REG_READ(DMCUB_SCRATCH1);
+	is_vbios_fw = ((fw_version >> 6) & 0x01) ? true : false;
+	if (!is_vbios_fw)
+		return false;
+
+	dmub->preos_info.boot_status = REG_READ(DMCUB_SCRATCH0);
+	dmub->preos_info.fw_version = REG_READ(DMCUB_SCRATCH1);
+	dmub->preos_info.boot_options = REG_READ(DMCUB_SCRATCH14);
+	REG_GET(DMCUB_REGION3_CW5_TOP_ADDRESS,
+		DMCUB_REGION3_CW5_ENABLE, &top_addr_enable);
+	if (top_addr_enable) {
+		dmub_dcn35_get_fb_base_offset(dmub,
+			&dmub->preos_info.fb_base, &dmub->preos_info.fb_offset);
+		offset_low = REG_READ(DMCUB_REGION3_CW5_OFFSET);
+		offset_high = REG_READ(DMCUB_REGION3_CW5_OFFSET_HIGH);
+		region3_cw5_offset = ((uint64_t)offset_high << 32) | offset_low;
+		dmub->preos_info.trace_buffer_phy_addr = region3_cw5_offset
+			- dmub->preos_info.fb_base + dmub->preos_info.fb_offset;
+
+		REG_GET(DMCUB_REGION3_CW5_TOP_ADDRESS,
+			DMCUB_REGION3_CW5_TOP_ADDRESS, &top_addr);
+		base_addr = REG_READ(DMCUB_REGION3_CW5_BASE_ADDRESS) & 0x1FFFFFFF;
+		dmub->preos_info.trace_buffer_size =
+			(top_addr > base_addr) ? (top_addr - base_addr + 1) : 0;
+	}
+
+	return true;
+}
+
+void dmub_dcn35_configure_dmub_in_system_memory(struct dmub_srv *dmub)
+{
+	/* DMCUB_REGION3_TMR_AXI_SPACE values:
+	 * 0b011 (0x3) - FB physical address
+	 * 0b100 (0x4) - GPU virtual address
+	 *
+	 * Default value is 0x3 (FB Physical address for TMR). When programming
+	 * DMUB to be in system memory, change to 0x4. The system memory allocated
+	 * is accessible by both GPU and CPU, so we use GPU virtual address.
+	 */
+	REG_WRITE(DMCUB_REGION3_TMR_AXI_SPACE, 0x4);
+}
+
+bool dmub_dcn35_should_detect(struct dmub_srv *dmub)
+{
+	uint32_t fw_boot_status = REG_READ(DMCUB_SCRATCH0);
+	bool should_detect = (fw_boot_status & DMUB_FW_BOOT_STATUS_BIT_DETECTION_REQUIRED) != 0;
+	return should_detect;
+}
+
+void dmub_dcn35_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data)
+{
+	REG_WRITE(DMCUB_INBOX0_WPTR, data.inbox0_cmd_common.all);
+}
+
+void dmub_dcn35_clear_inbox0_ack_register(struct dmub_srv *dmub)
+{
+	REG_WRITE(DMCUB_SCRATCH17, 0);
+}
+
+uint32_t dmub_dcn35_read_inbox0_ack_register(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH17);
+}
+
+bool dmub_dcn35_is_hw_powered_up(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+	uint32_t is_enable;
+
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enable);
+	if (is_enable == 0)
+		return false;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+
+	return (status.bits.dal_fw && status.bits.hw_power_init_done && status.bits.mailbox_rdy) ||
+	       (!status.bits.dal_fw && status.bits.mailbox_rdy);
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.h

@@ -0,0 +1,290 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN35_H_
+#define _DMUB_DCN35_H_
+
+#include "dmub_dcn31.h"
+
+struct dmub_srv;
+
+/* DCN35 register definitions. */
+
+#define DMUB_DCN35_REGS() \
+	DMUB_SR(DMCUB_CNTL) \
+	DMUB_SR(DMCUB_CNTL2) \
+	DMUB_SR(DMCUB_SEC_CNTL) \
+	DMUB_SR(DMCUB_INBOX0_SIZE) \
+	DMUB_SR(DMCUB_INBOX0_RPTR) \
+	DMUB_SR(DMCUB_INBOX0_WPTR) \
+	DMUB_SR(DMCUB_INBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_INBOX1_SIZE) \
+	DMUB_SR(DMCUB_INBOX1_RPTR) \
+	DMUB_SR(DMCUB_INBOX1_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX0_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX0_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX1_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX1_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_WPTR) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION4_OFFSET) \
+	DMUB_SR(DMCUB_REGION4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION5_OFFSET) \
+	DMUB_SR(DMCUB_REGION5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION6_OFFSET) \
+	DMUB_SR(DMCUB_REGION6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_SCRATCH0) \
+	DMUB_SR(DMCUB_SCRATCH1) \
+	DMUB_SR(DMCUB_SCRATCH2) \
+	DMUB_SR(DMCUB_SCRATCH3) \
+	DMUB_SR(DMCUB_SCRATCH4) \
+	DMUB_SR(DMCUB_SCRATCH5) \
+	DMUB_SR(DMCUB_SCRATCH6) \
+	DMUB_SR(DMCUB_SCRATCH7) \
+	DMUB_SR(DMCUB_SCRATCH8) \
+	DMUB_SR(DMCUB_SCRATCH9) \
+	DMUB_SR(DMCUB_SCRATCH10) \
+	DMUB_SR(DMCUB_SCRATCH11) \
+	DMUB_SR(DMCUB_SCRATCH12) \
+	DMUB_SR(DMCUB_SCRATCH13) \
+	DMUB_SR(DMCUB_SCRATCH14) \
+	DMUB_SR(DMCUB_SCRATCH15) \
+	DMUB_SR(DMCUB_SCRATCH16) \
+	DMUB_SR(DMCUB_SCRATCH17) \
+	DMUB_SR(DMCUB_SCRATCH18) \
+	DMUB_SR(DMCUB_SCRATCH19) \
+	DMUB_SR(DMCUB_SCRATCH20) \
+	DMUB_SR(DMCUB_SCRATCH21) \
+	DMUB_SR(DMCUB_GPINT_DATAIN0) \
+	DMUB_SR(DMCUB_GPINT_DATAIN1) \
+	DMUB_SR(DMCUB_GPINT_DATAOUT) \
+	DMUB_SR(CC_DC_PIPE_DIS) \
+	DMUB_SR(MMHUBBUB_SOFT_RESET) \
+	DMUB_SR(DCN_VM_FB_LOCATION_BASE) \
+	DMUB_SR(DCN_VM_FB_OFFSET) \
+	DMUB_SR(DMCUB_TIMER_CURRENT) \
+	DMUB_SR(DMCUB_INST_FETCH_FAULT_ADDR) \
+	DMUB_SR(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR) \
+	DMUB_SR(DMCUB_DATA_WRITE_FAULT_ADDR) \
+	DMUB_SR(DMCUB_REGION3_TMR_AXI_SPACE) \
+	DMUB_SR(DMCUB_INTERRUPT_ENABLE) \
+	DMUB_SR(DMCUB_INTERRUPT_ACK) \
+	DMUB_SR(DMU_CLK_CNTL)
+
+#define DMUB_DCN35_FIELDS() \
+	DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_TRACEPORT_EN) \
+	DMUB_SF(DMCUB_CNTL2, DMCUB_SOFT_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_MEM_UNIT_ID) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_ENABLE) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_ENABLE) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_ENABLE) \
+	DMUB_SF(DMCUB_REGION6_TOP_ADDRESS, DMCUB_REGION6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION6_TOP_ADDRESS, DMCUB_REGION6_ENABLE) \
+	DMUB_SF(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE) \
+	DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET) \
+	DMUB_SF(DCN_VM_FB_LOCATION_BASE, FB_BASE) \
+	DMUB_SF(DCN_VM_FB_OFFSET, FB_OFFSET) \
+	DMUB_SF(DMCUB_INBOX0_WPTR, DMCUB_INBOX0_WPTR) \
+	DMUB_SF(DMCUB_REGION3_TMR_AXI_SPACE, DMCUB_REGION3_TMR_AXI_SPACE) \
+	DMUB_SF(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN) \
+	DMUB_SF(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS) \
+	DMUB_SF(DMU_CLK_CNTL, LONO_DISPCLK_GATE_DISABLE) \
+	DMUB_SF(DMU_CLK_CNTL, LONO_SOCCLK_GATE_DISABLE) \
+	DMUB_SF(DMU_CLK_CNTL, LONO_DMCUBCLK_GATE_DISABLE)
+
+struct dmub_srv_dcn35_reg_offset {
+#define DMUB_SR(reg) uint32_t reg;
+	DMUB_DCN35_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+};
+
+struct dmub_srv_dcn35_reg_shift {
+#define DMUB_SF(reg, field) uint8_t reg##__##field;
+	DMUB_DCN35_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_dcn35_reg_mask {
+#define DMUB_SF(reg, field) uint32_t reg##__##field;
+	DMUB_DCN35_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_dcn35_regs {
+	struct dmub_srv_dcn35_reg_offset offset;
+	struct dmub_srv_dcn35_reg_mask mask;
+	struct dmub_srv_dcn35_reg_shift shift;
+};
+
+/* Hardware functions. */
+
+
+void dmub_dcn35_init(struct dmub_srv *dmub);
+
+void dmub_dcn35_reset(struct dmub_srv *dmub);
+
+void dmub_dcn35_reset_release(struct dmub_srv *dmub);
+
+void dmub_dcn35_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1);
+
+void dmub_dcn35_backdoor_load_zfb_mode(struct dmub_srv *dmub,
+				       const struct dmub_window *cw0,
+				       const struct dmub_window *cw1);
+
+void dmub_dcn35_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6);
+
+void dmub_dcn35_setup_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *inbox1);
+
+uint32_t dmub_dcn35_get_inbox1_wptr(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn35_get_inbox1_rptr(struct dmub_srv *dmub);
+
+void dmub_dcn35_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset);
+
+void dmub_dcn35_setup_out_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox1);
+
+uint32_t dmub_dcn35_get_outbox1_wptr(struct dmub_srv *dmub);
+
+void dmub_dcn35_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+bool dmub_dcn35_is_hw_init(struct dmub_srv *dmub);
+
+bool dmub_dcn35_is_supported(struct dmub_srv *dmub);
+
+void dmub_dcn35_set_gpint(struct dmub_srv *dmub,
+			  union dmub_gpint_data_register reg);
+
+bool dmub_dcn35_is_gpint_acked(struct dmub_srv *dmub,
+			       union dmub_gpint_data_register reg);
+
+uint32_t dmub_dcn35_get_gpint_response(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn35_get_gpint_dataout(struct dmub_srv *dmub);
+
+void dmub_dcn35_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params);
+
+void dmub_dcn35_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip);
+
+union dmub_fw_boot_status dmub_dcn35_get_fw_boot_status(struct dmub_srv *dmub);
+
+union dmub_fw_boot_options dmub_dcn35_get_fw_boot_option(struct dmub_srv *dmub);
+
+void dmub_dcn35_setup_outbox0(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox0);
+
+uint32_t dmub_dcn35_get_outbox0_wptr(struct dmub_srv *dmub);
+
+void dmub_dcn35_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+uint32_t dmub_dcn35_get_current_time(struct dmub_srv *dmub);
+
+void dmub_dcn35_get_diagnostic_data(struct dmub_srv *dmub);
+
+void dmub_dcn35_configure_dmub_in_system_memory(struct dmub_srv *dmub);
+
+void dmub_dcn35_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data);
+
+void dmub_dcn35_clear_inbox0_ack_register(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn35_read_inbox0_ack_register(struct dmub_srv *dmub);
+
+bool dmub_dcn35_should_detect(struct dmub_srv *dmub);
+
+bool dmub_dcn35_is_hw_powered_up(struct dmub_srv *dmub);
+
+void dmub_srv_dcn35_regs_init(struct dmub_srv *dmub, struct dc_context *ctx);
+
+bool dmub_dcn35_get_preos_fw_info(struct dmub_srv *dmub);
+
+#endif /* _DMUB_DCN35_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn351.c

@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright 2024 Advanced Micro Devices, Inc. */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn351.h"
+
+#include "dcn/dcn_3_5_1_offset.h"
+#include "dcn/dcn_3_5_1_sh_mask.h"
+
+#define BASE_INNER(seg) ctx->dcn_reg_offsets[seg]
+#define CTX dmub
+#define REGS dmub->regs_dcn35
+#define REG_OFFSET_EXP(reg_name) BASE(reg##reg_name##_BASE_IDX) + reg##reg_name
+
+void dmub_srv_dcn351_regs_init(struct dmub_srv *dmub, struct dc_context *ctx)
+{
+	struct dmub_srv_dcn35_regs *regs = dmub->regs_dcn35;
+#define REG_STRUCT regs
+
+#define DMUB_SR(reg) REG_STRUCT->offset.reg = REG_OFFSET_EXP(reg);
+	DMUB_DCN35_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) REG_STRUCT->mask.reg##__##field = FD_MASK(reg, field);
+	DMUB_DCN35_FIELDS()
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) REG_STRUCT->shift.reg##__##field = FD_SHIFT(reg, field);
+	DMUB_DCN35_FIELDS()
+#undef DMUB_SF
+#undef REG_STRUCT
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn351.h

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright 2024 Advanced Micro Devices, Inc. */
+
+#ifndef _DMUB_DCN351_H_
+#define _DMUB_DCN351_H_
+
+#include "dmub_dcn35.h"
+
+struct dmub_srv;
+
+void dmub_srv_dcn351_regs_init(struct dmub_srv *dmub, struct dc_context *ctx);
+
+#endif /* _DMUB_DCN351_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn36.c

@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright 2025 Advanced Micro Devices, Inc. */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn36.h"
+
+#include "dcn/dcn_3_6_0_offset.h"
+#include "dcn/dcn_3_6_0_sh_mask.h"
+
+#define BASE_INNER(seg) ctx->dcn_reg_offsets[seg]
+#define CTX dmub
+#define REGS dmub->regs_dcn35
+#define REG_OFFSET_EXP(reg_name) BASE(reg##reg_name##_BASE_IDX) + reg##reg_name
+
+void dmub_srv_dcn36_regs_init(struct dmub_srv *dmub, struct dc_context *ctx)
+{
+	struct dmub_srv_dcn35_regs *regs = dmub->regs_dcn35;
+#define REG_STRUCT regs
+
+#define DMUB_SR(reg) REG_STRUCT->offset.reg = REG_OFFSET_EXP(reg);
+	DMUB_DCN35_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) REG_STRUCT->mask.reg##__##field = FD_MASK(reg, field);
+	DMUB_DCN35_FIELDS()
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) REG_STRUCT->shift.reg##__##field = FD_SHIFT(reg, field);
+	DMUB_DCN35_FIELDS()
+#undef DMUB_SF
+#undef REG_STRUCT
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn36.h

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright 2025 Advanced Micro Devices, Inc. */
+
+#ifndef _DMUB_DCN36_H_
+#define _DMUB_DCN36_H_
+
+#include "dmub_dcn35.h"
+
+struct dmub_srv;
+
+void dmub_srv_dcn36_regs_init(struct dmub_srv *dmub, struct dc_context *ctx);
+
+#endif /* _DMUB_DCN36_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn401.c

@@ -0,0 +1,686 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2024 Advanced Micro Devices, Inc.
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn401.h"
+
+#include "dcn/dcn_4_1_0_offset.h"
+#include "dcn/dcn_4_1_0_sh_mask.h"
+
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs_dcn401
+#define REG_OFFSET_EXP(reg_name) (BASE(reg##reg_name##_BASE_IDX) + reg##reg_name)
+
+const struct dmub_srv_dcn401_regs dmub_srv_dcn401_regs = {
+#define DMUB_SR(reg) REG_OFFSET_EXP(reg),
+	{
+		DMUB_DCN401_REGS()
+		DMCUB_INTERNAL_REGS()
+	},
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+		{ DMUB_DCN401_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+		{ DMUB_DCN401_FIELDS() },
+#undef DMUB_SF
+};
+
+static void dmub_dcn401_get_fb_base_offset(struct dmub_srv *dmub,
+		uint64_t *fb_base,
+		uint64_t *fb_offset)
+{
+	uint32_t tmp;
+
+	if (dmub->soc_fb_info.fb_base || dmub->soc_fb_info.fb_offset) {
+		*fb_base = dmub->soc_fb_info.fb_base;
+		*fb_offset = dmub->soc_fb_info.fb_offset;
+		return;
+	}
+
+	REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp);
+	*fb_base = (uint64_t)tmp << 24;
+
+	REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp);
+	*fb_offset = (uint64_t)tmp << 24;
+}
+
+static inline void dmub_dcn401_translate_addr(const union dmub_addr *addr_in,
+		uint64_t fb_base,
+		uint64_t fb_offset,
+		union dmub_addr *addr_out)
+{
+	addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset;
+}
+
+void dmub_dcn401_reset(struct dmub_srv *dmub)
+{
+	union dmub_gpint_data_register cmd;
+	const uint32_t timeout_us = 1 * 1000 * 1000; //1s
+	const uint32_t poll_delay_us = 1; //1us
+	uint32_t i = 0;
+	uint32_t enabled, in_reset, scratch, pwait_mode;
+
+	REG_GET(DMCUB_CNTL,
+			DMCUB_ENABLE, &enabled);
+	REG_GET(DMCUB_CNTL2,
+			DMCUB_SOFT_RESET, &in_reset);
+
+	if (enabled && in_reset == 0) {
+		cmd.bits.status = 1;
+		cmd.bits.command_code = DMUB_GPINT__STOP_FW;
+		cmd.bits.param = 0;
+
+		dmub->hw_funcs.set_gpint(dmub, cmd);
+
+		for (; i < timeout_us; i++) {
+			scratch = REG_READ(DMCUB_SCRATCH7);
+			if (scratch == DMUB_GPINT__STOP_FW_RESPONSE)
+				break;
+
+			udelay(poll_delay_us);
+		}
+
+		for (; i < timeout_us; i++) {
+			REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &pwait_mode);
+			if (pwait_mode & (1 << 0))
+				break;
+
+			udelay(poll_delay_us);
+		}
+	}
+
+	if (enabled) {
+		REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 1);
+		udelay(1);
+		REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+	}
+
+	if (i >= timeout_us) {
+		/* timeout should never occur */
+		BREAK_TO_DEBUGGER();
+	}
+
+	REG_UPDATE(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_ENABLE, 0);
+	REG_UPDATE(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_ENABLE, 0);
+	REG_UPDATE(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_ENABLE, 0);
+	REG_UPDATE(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_ENABLE, 0);
+	REG_UPDATE(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE, 0);
+	REG_UPDATE(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_ENABLE, 0);
+
+	REG_WRITE(DMCUB_INBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_INBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX0_WPTR, 0);
+	REG_WRITE(DMCUB_SCRATCH0, 0);
+
+	/* Clear the GPINT command manually so we don't reset again. */
+	cmd.all = 0;
+	dmub->hw_funcs.set_gpint(dmub, cmd);
+}
+
+void dmub_dcn401_reset_release(struct dmub_srv *dmub)
+{
+	REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 0);
+	REG_WRITE(DMCUB_SCRATCH15, dmub->psp_version & 0x001100FF);
+	REG_UPDATE_2(DMCUB_CNTL, DMCUB_ENABLE, 1, DMCUB_TRACEPORT_EN, 1);
+	REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 0);
+}
+
+void dmub_dcn401_backdoor_load(struct dmub_srv *dmub,
+		const struct dmub_window *cw0,
+		const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+	uint64_t fb_base, fb_offset;
+
+	dmub_dcn401_get_fb_base_offset(dmub, &fb_base, &fb_offset);
+
+	/* reset and disable DMCUB and MMHUBBUB DMUIF */
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
+	REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+
+	dmub_dcn401_translate_addr(&cw0->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+			DMCUB_REGION3_CW0_ENABLE, 1);
+
+	dmub_dcn401_translate_addr(&cw1->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+			DMCUB_REGION3_CW1_ENABLE, 1);
+
+	/* release DMCUB reset only to prevent premature execution */
+	REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
+			0x20);
+}
+
+void dmub_dcn401_backdoor_load_zfb_mode(struct dmub_srv *dmub,
+		      const struct dmub_window *cw0,
+		      const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+
+	/* reset and disable DMCUB and MMHUBBUB DMUIF */
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
+	REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+
+	offset = cw0->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+			DMCUB_REGION3_CW0_ENABLE, 1);
+
+	offset = cw1->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+			DMCUB_REGION3_CW1_ENABLE, 1);
+
+	/* release DMCUB reset only to prevent premature execution */
+	REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
+			0x20);
+}
+
+void dmub_dcn401_setup_windows(struct dmub_srv *dmub,
+		const struct dmub_window *cw2,
+		const struct dmub_window *cw3,
+		const struct dmub_window *cw4,
+		const struct dmub_window *cw5,
+		const struct dmub_window *cw6,
+		const struct dmub_window *region6)
+{
+	(void)cw2;
+	union dmub_addr offset;
+
+	offset = cw3->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base);
+	REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top,
+			DMCUB_REGION3_CW3_ENABLE, 1);
+
+	offset = cw4->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base);
+	REG_SET_2(DMCUB_REGION3_CW4_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW4_TOP_ADDRESS, cw4->region.top,
+			DMCUB_REGION3_CW4_ENABLE, 1);
+
+	offset = cw5->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base);
+	REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top,
+			DMCUB_REGION3_CW5_ENABLE, 1);
+
+	REG_WRITE(DMCUB_REGION5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION5_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION5_TOP_ADDRESS, 0,
+			DMCUB_REGION5_TOP_ADDRESS,
+			cw5->region.top - cw5->region.base - 1,
+			DMCUB_REGION5_ENABLE, 1);
+
+	offset = cw6->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base);
+	REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top,
+			DMCUB_REGION3_CW6_ENABLE, 1);
+
+	offset = region6->offset;
+
+	REG_WRITE(DMCUB_REGION6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION6_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION6_TOP_ADDRESS, 0,
+		  DMCUB_REGION6_TOP_ADDRESS,
+		  region6->region.top - region6->region.base - 1,
+		  DMCUB_REGION6_ENABLE, 1);
+}
+
+void dmub_dcn401_setup_mailbox(struct dmub_srv *dmub,
+		const struct dmub_region *inbox1)
+{
+	REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, inbox1->base);
+	REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base);
+}
+
+uint32_t dmub_dcn401_get_inbox1_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_WPTR);
+}
+
+uint32_t dmub_dcn401_get_inbox1_rptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_RPTR);
+}
+
+void dmub_dcn401_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset)
+{
+	REG_WRITE(DMCUB_INBOX1_WPTR, wptr_offset);
+}
+
+void dmub_dcn401_setup_out_mailbox(struct dmub_srv *dmub,
+		const struct dmub_region *outbox1)
+{
+	REG_WRITE(DMCUB_OUTBOX1_BASE_ADDRESS, outbox1->base);
+	REG_WRITE(DMCUB_OUTBOX1_SIZE, outbox1->top - outbox1->base);
+}
+
+uint32_t dmub_dcn401_get_outbox1_wptr(struct dmub_srv *dmub)
+{
+	/**
+	 * outbox1 wptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	return REG_READ(DMCUB_OUTBOX1_WPTR);
+}
+
+void dmub_dcn401_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	/**
+	 * outbox1 rptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, rptr_offset);
+}
+
+bool dmub_dcn401_is_hw_init(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+	uint32_t is_hw_init;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_hw_init);
+
+	return is_hw_init != 0 && status.bits.dal_fw;
+}
+
+bool dmub_dcn401_is_supported(struct dmub_srv *dmub)
+{
+	uint32_t supported = 0;
+
+	REG_GET(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE, &supported);
+
+	return supported;
+}
+
+void dmub_dcn401_set_gpint(struct dmub_srv *dmub,
+		union dmub_gpint_data_register reg)
+{
+	REG_WRITE(DMCUB_GPINT_DATAIN1, reg.all);
+}
+
+bool dmub_dcn401_is_gpint_acked(struct dmub_srv *dmub,
+		union dmub_gpint_data_register reg)
+{
+	union dmub_gpint_data_register test;
+
+	reg.bits.status = 0;
+	test.all = REG_READ(DMCUB_GPINT_DATAIN1);
+
+	return test.all == reg.all;
+}
+
+uint32_t dmub_dcn401_get_gpint_response(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH7);
+}
+
+uint32_t dmub_dcn401_get_gpint_dataout(struct dmub_srv *dmub)
+{
+	uint32_t dataout = REG_READ(DMCUB_GPINT_DATAOUT);
+
+	REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 0);
+
+	REG_WRITE(DMCUB_GPINT_DATAOUT, 0);
+	REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 1);
+	REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 0);
+
+	REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 1);
+
+	return dataout;
+}
+
+union dmub_fw_boot_status dmub_dcn401_get_fw_boot_status(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	return status;
+}
+
+void dmub_dcn401_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params)
+{
+	union dmub_fw_boot_options boot_options = {0};
+
+	boot_options.bits.z10_disable = params->disable_z10;
+
+	boot_options.bits.skip_phy_access = params->disallow_phy_access;
+
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+void dmub_dcn401_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip)
+{
+	union dmub_fw_boot_options boot_options;
+	boot_options.all = REG_READ(DMCUB_SCRATCH14);
+	boot_options.bits.skip_phy_init_panel_sequence = skip;
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+void dmub_dcn401_setup_outbox0(struct dmub_srv *dmub,
+		const struct dmub_region *outbox0)
+{
+	REG_WRITE(DMCUB_OUTBOX0_BASE_ADDRESS, outbox0->base);
+
+	REG_WRITE(DMCUB_OUTBOX0_SIZE, outbox0->top - outbox0->base);
+}
+
+uint32_t dmub_dcn401_get_outbox0_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_OUTBOX0_WPTR);
+}
+
+void dmub_dcn401_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, rptr_offset);
+}
+
+uint32_t dmub_dcn401_get_current_time(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_TIMER_CURRENT);
+}
+
+void dmub_dcn401_get_diagnostic_data(struct dmub_srv *dmub)
+{
+	uint32_t is_dmub_enabled, is_soft_reset, is_sec_reset, is_pwait;
+	uint32_t is_traceport_enabled, is_cw0_enabled, is_cw6_enabled;
+	struct dmub_timeout_info timeout = {0};
+
+	if (!dmub)
+		return;
+
+	/* timeout data filled externally, cache before resetting memory */
+	timeout = dmub->debug.timeout_info;
+	memset(&dmub->debug, 0, sizeof(dmub->debug));
+	dmub->debug.timeout_info = timeout;
+
+	dmub->debug.dmcub_version = dmub->fw_version;
+
+	dmub->debug.scratch[0] = REG_READ(DMCUB_SCRATCH0);
+	dmub->debug.scratch[1] = REG_READ(DMCUB_SCRATCH1);
+	dmub->debug.scratch[2] = REG_READ(DMCUB_SCRATCH2);
+	dmub->debug.scratch[3] = REG_READ(DMCUB_SCRATCH3);
+	dmub->debug.scratch[4] = REG_READ(DMCUB_SCRATCH4);
+	dmub->debug.scratch[5] = REG_READ(DMCUB_SCRATCH5);
+	dmub->debug.scratch[6] = REG_READ(DMCUB_SCRATCH6);
+	dmub->debug.scratch[7] = REG_READ(DMCUB_SCRATCH7);
+	dmub->debug.scratch[8] = REG_READ(DMCUB_SCRATCH8);
+	dmub->debug.scratch[9] = REG_READ(DMCUB_SCRATCH9);
+	dmub->debug.scratch[10] = REG_READ(DMCUB_SCRATCH10);
+	dmub->debug.scratch[11] = REG_READ(DMCUB_SCRATCH11);
+	dmub->debug.scratch[12] = REG_READ(DMCUB_SCRATCH12);
+	dmub->debug.scratch[13] = REG_READ(DMCUB_SCRATCH13);
+	dmub->debug.scratch[14] = REG_READ(DMCUB_SCRATCH14);
+	dmub->debug.scratch[15] = REG_READ(DMCUB_SCRATCH15);
+	dmub->debug.scratch[16] = REG_READ(DMCUB_SCRATCH16);
+
+	dmub->debug.undefined_address_fault_addr = REG_READ(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR);
+	dmub->debug.inst_fetch_fault_addr = REG_READ(DMCUB_INST_FETCH_FAULT_ADDR);
+	dmub->debug.data_write_fault_addr = REG_READ(DMCUB_DATA_WRITE_FAULT_ADDR);
+
+	dmub->debug.inbox1_rptr = REG_READ(DMCUB_INBOX1_RPTR);
+	dmub->debug.inbox1_wptr = REG_READ(DMCUB_INBOX1_WPTR);
+	dmub->debug.inbox1_size = REG_READ(DMCUB_INBOX1_SIZE);
+
+	dmub->debug.inbox0_rptr = REG_READ(DMCUB_INBOX0_RPTR);
+	dmub->debug.inbox0_wptr = REG_READ(DMCUB_INBOX0_WPTR);
+	dmub->debug.inbox0_size = REG_READ(DMCUB_INBOX0_SIZE);
+
+	dmub->debug.outbox1_rptr = REG_READ(DMCUB_OUTBOX1_RPTR);
+	dmub->debug.outbox1_wptr = REG_READ(DMCUB_OUTBOX1_WPTR);
+	dmub->debug.outbox1_size = REG_READ(DMCUB_OUTBOX1_SIZE);
+
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_dmub_enabled);
+	ASSERT(is_dmub_enabled <= 0xFF);
+	dmub->debug.is_dmcub_enabled = (uint8_t)is_dmub_enabled;
+
+	REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &is_pwait);
+	ASSERT(is_pwait <= 0xFF);
+	dmub->debug.is_pwait = (uint8_t)is_pwait;
+
+	REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &is_soft_reset);
+	ASSERT(is_soft_reset <= 0xFF);
+	dmub->debug.is_dmcub_soft_reset = (uint8_t)is_soft_reset;
+
+	REG_GET(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS, &is_sec_reset);
+	ASSERT(is_sec_reset <= 0xFF);
+	dmub->debug.is_dmcub_secure_reset = (uint8_t)is_sec_reset;
+
+	REG_GET(DMCUB_CNTL, DMCUB_TRACEPORT_EN, &is_traceport_enabled);
+	ASSERT(is_traceport_enabled <= 0xFF);
+	dmub->debug.is_traceport_en  = (uint8_t)is_traceport_enabled;
+
+	REG_GET(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE, &is_cw0_enabled);
+	ASSERT(is_cw0_enabled <= 0xFF);
+	dmub->debug.is_cw0_enabled = (uint8_t)is_cw0_enabled;
+
+	REG_GET(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE, &is_cw6_enabled);
+	ASSERT(is_cw6_enabled <= 0xFF);
+	dmub->debug.is_cw6_enabled = (uint8_t)is_cw6_enabled;
+
+	dmub->debug.gpint_datain0 = REG_READ(DMCUB_GPINT_DATAIN0);
+}
+void dmub_dcn401_configure_dmub_in_system_memory(struct dmub_srv *dmub)
+{
+	/* DMCUB_REGION3_TMR_AXI_SPACE values:
+	 * 0b011 (0x3) - FB physical address
+	 * 0b100 (0x4) - GPU virtual address
+	 *
+	 * Default value is 0x3 (FB Physical address for TMR). When programming
+	 * DMUB to be in system memory, change to 0x4. The system memory allocated
+	 * is accessible by both GPU and CPU, so we use GPU virtual address.
+	 */
+	REG_WRITE(DMCUB_REGION3_TMR_AXI_SPACE, 0x4);
+}
+
+void dmub_dcn401_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data)
+{
+	REG_WRITE(DMCUB_INBOX0_WPTR, data.inbox0_cmd_common.all);
+}
+
+void dmub_dcn401_clear_inbox0_ack_register(struct dmub_srv *dmub)
+{
+	REG_WRITE(DMCUB_SCRATCH17, 0);
+}
+
+uint32_t dmub_dcn401_read_inbox0_ack_register(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH17);
+}
+
+void dmub_dcn401_send_reg_inbox0_cmd_msg(struct dmub_srv *dmub,
+		union dmub_rb_cmd *cmd)
+{
+	uint32_t *dwords = (uint32_t *)cmd;
+	uint32_t payload_size_bytes = cmd->cmd_common.header.payload_bytes;
+	uint32_t msg_index;
+	static_assert(sizeof(*cmd) == 64, "DMUB command size mismatch");
+
+	/* read remaining data based on payload size */
+	for (msg_index = 0; msg_index < 15; msg_index++) {
+		if (payload_size_bytes <= msg_index * 4) {
+			break;
+		}
+
+		switch (msg_index) {
+		case 0:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG0, dwords[msg_index + 1]);
+			break;
+		case 1:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG1, dwords[msg_index + 1]);
+			break;
+		case 2:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG2, dwords[msg_index + 1]);
+			break;
+		case 3:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG3, dwords[msg_index + 1]);
+			break;
+		case 4:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG4, dwords[msg_index + 1]);
+			break;
+		case 5:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG5, dwords[msg_index + 1]);
+			break;
+		case 6:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG6, dwords[msg_index + 1]);
+			break;
+		case 7:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG7, dwords[msg_index + 1]);
+			break;
+		case 8:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG8, dwords[msg_index + 1]);
+			break;
+		case 9:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG9, dwords[msg_index + 1]);
+			break;
+		case 10:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG10, dwords[msg_index + 1]);
+			break;
+		case 11:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG11, dwords[msg_index + 1]);
+			break;
+		case 12:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG12, dwords[msg_index + 1]);
+			break;
+		case 13:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG13, dwords[msg_index + 1]);
+			break;
+		case 14:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG14, dwords[msg_index + 1]);
+			break;
+		}
+	}
+
+	/* writing to INBOX RDY register will trigger DMUB REG INBOX0 RDY
+	 * interrupt.
+	 */
+	REG_WRITE(DMCUB_REG_INBOX0_RDY, dwords[0]);
+}
+
+uint32_t dmub_dcn401_read_reg_inbox0_rsp_int_status(struct dmub_srv *dmub)
+{
+	uint32_t status;
+
+	REG_GET(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_STAT, &status);
+	return status;
+}
+
+void dmub_dcn401_read_reg_inbox0_cmd_rsp(struct dmub_srv *dmub,
+		union dmub_rb_cmd *cmd)
+{
+	uint32_t *dwords = (uint32_t *)cmd;
+
+	static_assert(sizeof(*cmd) == 64, "DMUB command size mismatch");
+
+	dwords[0] = REG_READ(DMCUB_REG_INBOX0_RSP);
+	dwords[1] = REG_READ(DMCUB_REG_INBOX0_MSG0);
+	dwords[2] = REG_READ(DMCUB_REG_INBOX0_MSG1);
+	dwords[3] = REG_READ(DMCUB_REG_INBOX0_MSG2);
+	dwords[4] = REG_READ(DMCUB_REG_INBOX0_MSG3);
+	dwords[5] = REG_READ(DMCUB_REG_INBOX0_MSG4);
+	dwords[6] = REG_READ(DMCUB_REG_INBOX0_MSG5);
+	dwords[7] = REG_READ(DMCUB_REG_INBOX0_MSG6);
+	dwords[8] = REG_READ(DMCUB_REG_INBOX0_MSG7);
+	dwords[9] = REG_READ(DMCUB_REG_INBOX0_MSG8);
+	dwords[10] = REG_READ(DMCUB_REG_INBOX0_MSG9);
+	dwords[11] = REG_READ(DMCUB_REG_INBOX0_MSG10);
+	dwords[12] = REG_READ(DMCUB_REG_INBOX0_MSG11);
+	dwords[13] = REG_READ(DMCUB_REG_INBOX0_MSG12);
+	dwords[14] = REG_READ(DMCUB_REG_INBOX0_MSG13);
+	dwords[15] = REG_READ(DMCUB_REG_INBOX0_MSG14);
+}
+
+void dmub_dcn401_write_reg_inbox0_rsp_int_ack(struct dmub_srv *dmub)
+{
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_ACK, 1);
+}
+
+void dmub_dcn401_clear_reg_inbox0_rsp_int_ack(struct dmub_srv *dmub)
+{
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_ACK, 0);
+}
+
+void dmub_dcn401_enable_reg_inbox0_rsp_int(struct dmub_srv *dmub, bool enable)
+{
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_EN, enable ? 1:0);
+}
+
+void dmub_dcn401_write_reg_outbox0_rdy_int_ack(struct dmub_srv *dmub)
+{
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_ACK, 1);
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_ACK, 0);
+}
+
+void dmub_dcn401_read_reg_outbox0_msg(struct dmub_srv *dmub, uint32_t *msg)
+{
+	*msg = REG_READ(DMCUB_REG_OUTBOX0_MSG0);
+}
+
+void dmub_dcn401_write_reg_outbox0_rsp(struct dmub_srv *dmub, uint32_t *rsp)
+{
+	REG_WRITE(DMCUB_REG_OUTBOX0_RSP, *rsp);
+}
+
+uint32_t dmub_dcn401_read_reg_outbox0_rsp_int_status(struct dmub_srv *dmub)
+{
+	uint32_t status;
+
+	REG_GET(DMCUB_INTERRUPT_STATUS, DMCUB_REG_OUTBOX0_RSP_INT_STAT, &status);
+	return status;
+}
+
+void dmub_dcn401_enable_reg_outbox0_rdy_int(struct dmub_srv *dmub, bool enable)
+{
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_EN, enable ? 1:0);
+}
+
+uint32_t dmub_dcn401_read_reg_outbox0_rdy_int_status(struct dmub_srv *dmub)
+{
+	uint32_t status;
+
+	REG_GET(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_STAT, &status);
+	return status;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn401.h

@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2024 Advanced Micro Devices, Inc.
+
+#ifndef _DMUB_DCN401_H_
+#define _DMUB_DCN401_H_
+
+#include "dmub_dcn31.h"
+
+struct dmub_srv;
+
+/* DCN401 register definitions. */
+
+#define DMUB_DCN401_REGS() \
+	DMUB_SR(DMCUB_CNTL) \
+	DMUB_SR(DMCUB_CNTL2) \
+	DMUB_SR(DMCUB_SEC_CNTL) \
+	DMUB_SR(DMCUB_INBOX0_SIZE) \
+	DMUB_SR(DMCUB_INBOX0_RPTR) \
+	DMUB_SR(DMCUB_INBOX0_WPTR) \
+	DMUB_SR(DMCUB_INBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_INBOX1_SIZE) \
+	DMUB_SR(DMCUB_INBOX1_RPTR) \
+	DMUB_SR(DMCUB_INBOX1_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX0_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX0_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX1_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX1_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_WPTR) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION4_OFFSET) \
+	DMUB_SR(DMCUB_REGION4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION5_OFFSET) \
+	DMUB_SR(DMCUB_REGION5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION6_OFFSET) \
+	DMUB_SR(DMCUB_REGION6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_SCRATCH0) \
+	DMUB_SR(DMCUB_SCRATCH1) \
+	DMUB_SR(DMCUB_SCRATCH2) \
+	DMUB_SR(DMCUB_SCRATCH3) \
+	DMUB_SR(DMCUB_SCRATCH4) \
+	DMUB_SR(DMCUB_SCRATCH5) \
+	DMUB_SR(DMCUB_SCRATCH6) \
+	DMUB_SR(DMCUB_SCRATCH7) \
+	DMUB_SR(DMCUB_SCRATCH8) \
+	DMUB_SR(DMCUB_SCRATCH9) \
+	DMUB_SR(DMCUB_SCRATCH10) \
+	DMUB_SR(DMCUB_SCRATCH11) \
+	DMUB_SR(DMCUB_SCRATCH12) \
+	DMUB_SR(DMCUB_SCRATCH13) \
+	DMUB_SR(DMCUB_SCRATCH14) \
+	DMUB_SR(DMCUB_SCRATCH15) \
+	DMUB_SR(DMCUB_SCRATCH16) \
+	DMUB_SR(DMCUB_SCRATCH17) \
+	DMUB_SR(DMCUB_GPINT_DATAIN0) \
+	DMUB_SR(DMCUB_GPINT_DATAIN1) \
+	DMUB_SR(DMCUB_GPINT_DATAOUT) \
+	DMUB_SR(CC_DC_PIPE_DIS) \
+	DMUB_SR(MMHUBBUB_SOFT_RESET) \
+	DMUB_SR(DCN_VM_FB_LOCATION_BASE) \
+	DMUB_SR(DCN_VM_FB_OFFSET) \
+	DMUB_SR(DMCUB_TIMER_CURRENT) \
+	DMUB_SR(DMCUB_INST_FETCH_FAULT_ADDR) \
+	DMUB_SR(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR) \
+	DMUB_SR(DMCUB_DATA_WRITE_FAULT_ADDR) \
+	DMUB_SR(DMCUB_REGION3_TMR_AXI_SPACE) \
+	DMUB_SR(DMCUB_INTERRUPT_ENABLE) \
+	DMUB_SR(DMCUB_INTERRUPT_ACK) \
+	DMUB_SR(DMCUB_INTERRUPT_STATUS) \
+	DMUB_SR(DMCUB_REG_INBOX0_RDY) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG0) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG1) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG2) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG3) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG4) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG5) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG6) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG7) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG8) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG9) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG10) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG11) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG12) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG13) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG14) \
+	DMUB_SR(DMCUB_REG_INBOX0_RSP) \
+	DMUB_SR(DMCUB_REG_OUTBOX0_RDY) \
+	DMUB_SR(DMCUB_REG_OUTBOX0_MSG0) \
+	DMUB_SR(DMCUB_REG_OUTBOX0_RSP) \
+	DMUB_SR(HOST_INTERRUPT_CSR)
+
+#define DMUB_DCN401_FIELDS() \
+	DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_TRACEPORT_EN) \
+	DMUB_SF(DMCUB_CNTL2, DMCUB_SOFT_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_MEM_UNIT_ID) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_ENABLE) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_ENABLE) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_ENABLE) \
+	DMUB_SF(DMCUB_REGION6_TOP_ADDRESS, DMCUB_REGION6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION6_TOP_ADDRESS, DMCUB_REGION6_ENABLE) \
+	DMUB_SF(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE) \
+	DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET) \
+	DMUB_SF(DCN_VM_FB_LOCATION_BASE, FB_BASE) \
+	DMUB_SF(DCN_VM_FB_OFFSET, FB_OFFSET) \
+	DMUB_SF(DMCUB_INBOX0_WPTR, DMCUB_INBOX0_WPTR) \
+	DMUB_SF(DMCUB_REGION3_TMR_AXI_SPACE, DMCUB_REGION3_TMR_AXI_SPACE) \
+	DMUB_SF(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN) \
+	DMUB_SF(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK) \
+	DMUB_SF(DMCUB_INTERRUPT_STATUS, DMCUB_REG_OUTBOX0_RSP_INT_STAT) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_ACK) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_STAT) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_EN) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_ACK) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_STAT) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_EN) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS)
+
+struct dmub_srv_dcn401_reg_offset {
+#define DMUB_SR(reg) uint32_t reg;
+	DMUB_DCN401_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+};
+
+struct dmub_srv_dcn401_reg_shift {
+#define DMUB_SF(reg, field) uint8_t reg##__##field;
+	DMUB_DCN401_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_dcn401_reg_mask {
+#define DMUB_SF(reg, field) uint32_t reg##__##field;
+	DMUB_DCN401_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_dcn401_regs {
+	const struct dmub_srv_dcn401_reg_offset offset;
+	const struct dmub_srv_dcn401_reg_mask mask;
+	const struct dmub_srv_dcn401_reg_shift shift;
+};
+
+extern const struct dmub_srv_dcn401_regs dmub_srv_dcn401_regs;
+
+void dmub_dcn401_reset(struct dmub_srv *dmub);
+
+void dmub_dcn401_reset_release(struct dmub_srv *dmub);
+
+void dmub_dcn401_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1);
+
+void dmub_dcn401_backdoor_load_zfb_mode(struct dmub_srv *dmub,
+		      const struct dmub_window *cw0,
+		      const struct dmub_window *cw1);
+
+void dmub_dcn401_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6);
+
+void dmub_dcn401_setup_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *inbox1);
+
+uint32_t dmub_dcn401_get_inbox1_wptr(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn401_get_inbox1_rptr(struct dmub_srv *dmub);
+
+void dmub_dcn401_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset);
+
+void dmub_dcn401_setup_out_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox1);
+
+uint32_t dmub_dcn401_get_outbox1_wptr(struct dmub_srv *dmub);
+
+void dmub_dcn401_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+bool dmub_dcn401_is_hw_init(struct dmub_srv *dmub);
+
+bool dmub_dcn401_is_supported(struct dmub_srv *dmub);
+
+void dmub_dcn401_set_gpint(struct dmub_srv *dmub,
+			  union dmub_gpint_data_register reg);
+
+bool dmub_dcn401_is_gpint_acked(struct dmub_srv *dmub,
+			       union dmub_gpint_data_register reg);
+
+uint32_t dmub_dcn401_get_gpint_response(struct dmub_srv *dmub);
+
+uint32_t dmub_dcn401_get_gpint_dataout(struct dmub_srv *dmub);
+
+void dmub_dcn401_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params);
+
+void dmub_dcn401_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip);
+
+union dmub_fw_boot_status dmub_dcn401_get_fw_boot_status(struct dmub_srv *dmub);
+
+void dmub_dcn401_setup_outbox0(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox0);
+
+uint32_t dmub_dcn401_get_outbox0_wptr(struct dmub_srv *dmub);
+
+void dmub_dcn401_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+uint32_t dmub_dcn401_get_current_time(struct dmub_srv *dmub);
+
+void dmub_dcn401_get_diagnostic_data(struct dmub_srv *dmub);
+
+void dmub_dcn401_configure_dmub_in_system_memory(struct dmub_srv *dmub);
+void dmub_dcn401_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data);
+void dmub_dcn401_clear_inbox0_ack_register(struct dmub_srv *dmub);
+uint32_t dmub_dcn401_read_inbox0_ack_register(struct dmub_srv *dmub);
+
+void dmub_dcn401_send_reg_inbox0_cmd_msg(struct dmub_srv *dmub,
+		union dmub_rb_cmd *cmd);
+uint32_t dmub_dcn401_read_reg_inbox0_rsp_int_status(struct dmub_srv *dmub);
+void dmub_dcn401_read_reg_inbox0_cmd_rsp(struct dmub_srv *dmub,
+		union dmub_rb_cmd *cmd);
+void dmub_dcn401_write_reg_inbox0_rsp_int_ack(struct dmub_srv *dmub);
+void dmub_dcn401_clear_reg_inbox0_rsp_int_ack(struct dmub_srv *dmub);
+void dmub_dcn401_enable_reg_inbox0_rsp_int(struct dmub_srv *dmub, bool enable);
+
+void dmub_dcn401_write_reg_outbox0_rdy_int_ack(struct dmub_srv *dmub);
+void dmub_dcn401_read_reg_outbox0_msg(struct dmub_srv *dmub, uint32_t *msg);
+void dmub_dcn401_write_reg_outbox0_rsp(struct dmub_srv *dmub, uint32_t *msg);
+uint32_t dmub_dcn401_read_reg_outbox0_rsp_int_status(struct dmub_srv *dmub);
+void dmub_dcn401_enable_reg_outbox0_rdy_int(struct dmub_srv *dmub, bool enable);
+uint32_t dmub_dcn401_read_reg_outbox0_rdy_int_status(struct dmub_srv *dmub);
+
+#endif /* _DMUB_DCN401_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn42.c

@@ -0,0 +1,759 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2026 Advanced Micro Devices, Inc.
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn35.h"
+#include "dmub_dcn401.h"
+#include "dmub_dcn42.h"
+
+#include "dcn/dcn_4_2_0_offset.h"
+#include "dcn/dcn_4_2_0_sh_mask.h"
+
+#define BASE_INNER(seg) ctx->dcn_reg_offsets[seg]
+#define CTX dmub
+#define REGS dmub->regs_dcn42
+#define REG_OFFSET_EXP(reg_name) (BASE(reg##reg_name##_BASE_IDX) + reg##reg_name)
+
+void dmub_srv_dcn42_regs_init(struct dmub_srv *dmub, struct dc_context *ctx)
+{
+	struct dmub_srv_dcn42_regs *regs = dmub->regs_dcn42;
+#define REG_STRUCT regs
+
+#define DMUB_SR(reg) REG_STRUCT->offset.reg = REG_OFFSET_EXP(reg);
+	DMUB_DCN42_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) REG_STRUCT->mask.reg##__##field = FD_MASK(reg, field);
+	DMUB_DCN42_FIELDS()
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) REG_STRUCT->shift.reg##__##field = FD_SHIFT(reg, field);
+	DMUB_DCN42_FIELDS()
+#undef DMUB_SF
+#undef REG_STRUCT
+}
+
+void dmub_dcn42_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params)
+{
+	union dmub_fw_boot_options boot_options = {0};
+
+	if (!dmub->dpia_supported) {
+		dmub->dpia_supported = dmub_dcn42_get_fw_boot_option(dmub).bits.enable_dpia != 0;
+	}
+
+	boot_options.bits.z10_disable = params->disable_z10;
+	boot_options.bits.dpia_supported = params->dpia_supported;
+	boot_options.bits.enable_dpia = dmub->dpia_supported && !params->disable_dpia;
+	boot_options.bits.usb4_cm_version = params->usb4_cm_version;
+	boot_options.bits.dpia_hpd_int_enable_supported = params->dpia_hpd_int_enable_supported;
+	boot_options.bits.power_optimization = params->power_optimization;
+	boot_options.bits.disable_clk_ds = params->disallow_dispclk_dppclk_ds;
+	boot_options.bits.disable_clk_gate = params->disable_clock_gate;
+	boot_options.bits.ips_disable = params->disable_ips;
+	boot_options.bits.ips_sequential_ono = params->ips_sequential_ono;
+	boot_options.bits.disable_sldo_opt = params->disable_sldo_opt;
+	boot_options.bits.enable_non_transparent_setconfig = params->enable_non_transparent_setconfig;
+	boot_options.bits.lower_hbr3_phy_ssc = params->lower_hbr3_phy_ssc;
+	boot_options.bits.skip_phy_access = params->disallow_phy_access;
+	boot_options.bits.disable_dpia_bw_allocation = params->disable_dpia_bw_allocation;
+
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+static void dmub_dcn42_get_fb_base_offset(struct dmub_srv *dmub,
+					  uint64_t *fb_base,
+					  uint64_t *fb_offset)
+{
+	uint32_t tmp;
+
+	/*
+	if (dmub->soc_fb_info.fb_base || dmub->soc_fb_info.fb_offset) {
+		*fb_base = dmub->soc_fb_info.fb_base;
+		*fb_offset = dmub->soc_fb_info.fb_offset;
+		return;
+	}
+	*/
+
+	REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp);
+	*fb_base = (uint64_t)tmp << 24;
+
+	REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp);
+	*fb_offset = (uint64_t)tmp << 24;
+}
+
+static inline void dmub_dcn42_translate_addr(const union dmub_addr *addr_in,
+					     uint64_t fb_base,
+					     uint64_t fb_offset,
+					     union dmub_addr *addr_out)
+{
+	addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset;
+}
+
+void dmub_dcn42_reset(struct dmub_srv *dmub)
+{
+	union dmub_gpint_data_register cmd;
+	const uint32_t timeout = 100000;
+	uint32_t in_reset, is_enabled, scratch, i, pwait_mode;
+
+	REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &in_reset);
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enabled);
+
+	if (in_reset == 0 && is_enabled != 0) {
+		cmd.bits.status = 1;
+		cmd.bits.command_code = DMUB_GPINT__STOP_FW;
+		cmd.bits.param = 0;
+
+		dmub->hw_funcs.set_gpint(dmub, cmd);
+
+		for (i = 0; i < timeout; ++i) {
+			if (dmub->hw_funcs.is_gpint_acked(dmub, cmd))
+				break;
+
+			udelay(1);
+		}
+
+		for (i = 0; i < timeout; ++i) {
+			scratch = REG_READ(DMCUB_SCRATCH7);
+			if (scratch == DMUB_GPINT__STOP_FW_RESPONSE)
+				break;
+
+			udelay(1);
+		}
+
+		for (i = 0; i < timeout; ++i) {
+			REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &pwait_mode);
+			if (pwait_mode & (1 << 0))
+				break;
+
+			udelay(1);
+		}
+		/* Force reset in case we timed out, DMCUB is likely hung. */
+	}
+
+	if (is_enabled) {
+		REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 1);
+		udelay(1);
+		REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+	}
+
+	REG_WRITE(DMCUB_INBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_INBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX1_WPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, 0);
+	REG_WRITE(DMCUB_OUTBOX0_WPTR, 0);
+	REG_WRITE(DMCUB_SCRATCH0, 0);
+
+	/* Clear the GPINT command manually so we don't send anything during boot. */
+	cmd.all = 0;
+	dmub->hw_funcs.set_gpint(dmub, cmd);
+}
+
+void dmub_dcn42_reset_release(struct dmub_srv *dmub)
+{
+	REG_WRITE(DMCUB_SCRATCH15, dmub->psp_version & 0x001100FF);
+
+	REG_UPDATE_3(DMU_CLK_CNTL,
+		     LONO_DISPCLK_GATE_DISABLE, 1,
+		     LONO_SOCCLK_GATE_DISABLE, 1,
+		     LONO_DMCUBCLK_GATE_DISABLE, 1);
+
+	REG_UPDATE_2(DMCUB_CNTL, DMCUB_ENABLE, 1, DMCUB_TRACEPORT_EN, 1);
+	REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 0);
+	REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 0);
+}
+
+void dmub_dcn42_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+	uint64_t fb_base, fb_offset;
+
+	dmub_dcn42_get_fb_base_offset(dmub, &fb_base, &fb_offset);
+
+	dmub_dcn42_translate_addr(&cw0->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+		  DMCUB_REGION3_CW0_ENABLE, 1);
+
+	dmub_dcn42_translate_addr(&cw1->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+		  DMCUB_REGION3_CW1_ENABLE, 1);
+
+	/* TODO: Do we need to set DMCUB_MEM_UNIT_ID? */
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0);
+}
+
+void dmub_dcn42_backdoor_load_zfb_mode(struct dmub_srv *dmub,
+		      const struct dmub_window *cw0,
+		      const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
+	offset = cw0->offset;
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+			DMCUB_REGION3_CW0_ENABLE, 1);
+	offset = cw1->offset;
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+			DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+			DMCUB_REGION3_CW1_ENABLE, 1);
+	REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
+			0x20);
+}
+void dmub_dcn42_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6,
+			      const struct dmub_window *region6)
+{
+	(void)cw2;
+	union dmub_addr offset;
+
+	offset = cw3->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base);
+	REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top,
+		  DMCUB_REGION3_CW3_ENABLE, 1);
+
+	offset = cw4->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base);
+	REG_SET_2(DMCUB_REGION3_CW4_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW4_TOP_ADDRESS, cw4->region.top,
+		  DMCUB_REGION3_CW4_ENABLE, 1);
+
+	offset = cw5->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base);
+	REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top,
+		  DMCUB_REGION3_CW5_ENABLE, 1);
+
+	REG_WRITE(DMCUB_REGION5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION5_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION5_TOP_ADDRESS, 0,
+		  DMCUB_REGION5_TOP_ADDRESS,
+		  cw5->region.top - cw5->region.base - 1,
+		  DMCUB_REGION5_ENABLE, 1);
+
+	offset = cw6->offset;
+
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base);
+	REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top,
+		  DMCUB_REGION3_CW6_ENABLE, 1);
+
+	offset = region6->offset;
+
+	REG_WRITE(DMCUB_REGION6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION6_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION6_TOP_ADDRESS, 0,
+		  DMCUB_REGION6_TOP_ADDRESS,
+		  region6->region.top - region6->region.base - 1,
+		  DMCUB_REGION6_ENABLE, 1);
+}
+
+uint32_t dmub_dcn42_get_inbox1_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_WPTR);
+}
+
+uint32_t dmub_dcn42_get_inbox1_rptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_RPTR);
+}
+
+void dmub_dcn42_setup_out_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox1)
+{
+	REG_WRITE(DMCUB_OUTBOX1_BASE_ADDRESS, outbox1->base);
+	REG_WRITE(DMCUB_OUTBOX1_SIZE, outbox1->top - outbox1->base);
+}
+
+uint32_t dmub_dcn42_get_outbox1_wptr(struct dmub_srv *dmub)
+{
+	/**
+	 * outbox1 wptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	return REG_READ(DMCUB_OUTBOX1_WPTR);
+}
+
+void dmub_dcn42_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	/**
+	 * outbox1 rptr register is accessed without locks (dal & dc)
+	 * and to be called only by dmub_srv_stat_get_notification()
+	 */
+	REG_WRITE(DMCUB_OUTBOX1_RPTR, rptr_offset);
+}
+
+bool dmub_dcn42_is_supported(struct dmub_srv *dmub)
+{
+	// DCN without DMUB is not a supported configuration; safe to assume that it is always
+	// present.
+	return true;
+}
+
+union dmub_fw_boot_options dmub_dcn42_get_fw_boot_option(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_options option;
+
+	option.all = REG_READ(DMCUB_SCRATCH14);
+	return option;
+}
+
+void dmub_dcn42_setup_outbox0(struct dmub_srv *dmub,
+			      const struct dmub_region *outbox0)
+{
+	REG_WRITE(DMCUB_OUTBOX0_BASE_ADDRESS, outbox0->base);
+
+	REG_WRITE(DMCUB_OUTBOX0_SIZE, outbox0->top - outbox0->base);
+}
+
+bool dmub_dcn42_should_detect(struct dmub_srv *dmub)
+{
+	uint32_t fw_boot_status = REG_READ(DMCUB_SCRATCH0);
+	bool should_detect = (fw_boot_status & DMUB_FW_BOOT_STATUS_BIT_DETECTION_REQUIRED) != 0;
+	return should_detect;
+}
+
+void dmub_dcn42_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data)
+{
+	REG_WRITE(DMCUB_INBOX0_WPTR, data.inbox0_cmd_common.all);
+}
+
+uint32_t dmub_dcn42_read_inbox0_ack_register(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH17);
+}
+
+bool dmub_dcn42_is_hw_powered_up(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+	uint32_t is_enable;
+
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enable);
+	if (is_enable == 0)
+		return false;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+
+	return (status.bits.dal_fw && status.bits.hw_power_init_done && status.bits.mailbox_rdy) ||
+	       (!status.bits.dal_fw && status.bits.mailbox_rdy);
+}
+
+void dmub_dcn42_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset)
+{
+	REG_WRITE(DMCUB_INBOX1_WPTR, wptr_offset);
+}
+
+bool dmub_dcn42_is_hw_init(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+	uint32_t is_hw_init;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_hw_init);
+
+	return is_hw_init != 0 && status.bits.dal_fw;
+}
+
+union dmub_fw_boot_status dmub_dcn42_get_fw_boot_status(struct dmub_srv *dmub)
+{
+	union dmub_fw_boot_status status;
+
+	status.all = REG_READ(DMCUB_SCRATCH0);
+	return status;
+}
+
+void dmub_dcn42_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip)
+{
+	union dmub_fw_boot_options boot_options;
+	boot_options.all = REG_READ(DMCUB_SCRATCH14);
+	boot_options.bits.skip_phy_init_panel_sequence = skip;
+	REG_WRITE(DMCUB_SCRATCH14, boot_options.all);
+}
+
+void dmub_dcn42_configure_dmub_in_system_memory(struct dmub_srv *dmub)
+{
+	/* DMCUB_REGION3_TMR_AXI_SPACE values:
+	 * 0b011 (0x3) - FB physical address
+	 * 0b100 (0x4) - GPU virtual address
+	 *
+	 * Default value is 0x3 (FB Physical address for TMR). When programming
+	 * DMUB to be in system memory, change to 0x4. The system memory allocated
+	 * is accessible by both GPU and CPU, so we use GPU virtual address.
+	 */
+	REG_WRITE(DMCUB_REGION3_TMR_AXI_SPACE, 0x4);
+}
+
+void dmub_dcn42_clear_inbox0_ack_register(struct dmub_srv *dmub)
+{
+	REG_WRITE(DMCUB_SCRATCH17, 0);
+}
+
+void dmub_dcn42_send_reg_inbox0_cmd_msg(struct dmub_srv *dmub,
+		union dmub_rb_cmd *cmd)
+{
+	uint32_t *dwords = (uint32_t *)cmd;
+	uint32_t payload_size_bytes = cmd->cmd_common.header.payload_bytes;
+	uint32_t msg_index;
+	static_assert(sizeof(*cmd) == 64, "DMUB command size mismatch");
+
+	/* read remaining data based on payload size */
+	for (msg_index = 0; msg_index < 15; msg_index++) {
+		if (payload_size_bytes <= msg_index * 4) {
+			break;
+		}
+
+		switch (msg_index) {
+		case 0:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG0, dwords[msg_index + 1]);
+			break;
+		case 1:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG1, dwords[msg_index + 1]);
+			break;
+		case 2:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG2, dwords[msg_index + 1]);
+			break;
+		case 3:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG3, dwords[msg_index + 1]);
+			break;
+		case 4:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG4, dwords[msg_index + 1]);
+			break;
+		case 5:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG5, dwords[msg_index + 1]);
+			break;
+		case 6:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG6, dwords[msg_index + 1]);
+			break;
+		case 7:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG7, dwords[msg_index + 1]);
+			break;
+		case 8:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG8, dwords[msg_index + 1]);
+			break;
+		case 9:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG9, dwords[msg_index + 1]);
+			break;
+		case 10:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG10, dwords[msg_index + 1]);
+			break;
+		case 11:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG11, dwords[msg_index + 1]);
+			break;
+		case 12:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG12, dwords[msg_index + 1]);
+			break;
+		case 13:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG13, dwords[msg_index + 1]);
+			break;
+		case 14:
+			REG_WRITE(DMCUB_REG_INBOX0_MSG14, dwords[msg_index + 1]);
+			break;
+		}
+	}
+
+	/* writing to INBOX RDY register will trigger DMUB REG INBOX0 RDY
+	 * interrupt.
+	 */
+	REG_WRITE(DMCUB_REG_INBOX0_RDY, dwords[0]);
+}
+
+uint32_t dmub_dcn42_read_reg_inbox0_rsp_int_status(struct dmub_srv *dmub)
+{
+	uint32_t status;
+
+	REG_GET(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_STAT, &status);
+	return status;
+}
+
+void dmub_dcn42_read_reg_inbox0_cmd_rsp(struct dmub_srv *dmub,
+		union dmub_rb_cmd *cmd)
+{
+	uint32_t *dwords = (uint32_t *)cmd;
+
+	static_assert(sizeof(*cmd) == 64, "DMUB command size mismatch");
+
+	dwords[0] = REG_READ(DMCUB_REG_INBOX0_RSP);
+	dwords[1] = REG_READ(DMCUB_REG_INBOX0_MSG0);
+	dwords[2] = REG_READ(DMCUB_REG_INBOX0_MSG1);
+	dwords[3] = REG_READ(DMCUB_REG_INBOX0_MSG2);
+	dwords[4] = REG_READ(DMCUB_REG_INBOX0_MSG3);
+	dwords[5] = REG_READ(DMCUB_REG_INBOX0_MSG4);
+	dwords[6] = REG_READ(DMCUB_REG_INBOX0_MSG5);
+	dwords[7] = REG_READ(DMCUB_REG_INBOX0_MSG6);
+	dwords[8] = REG_READ(DMCUB_REG_INBOX0_MSG7);
+	dwords[9] = REG_READ(DMCUB_REG_INBOX0_MSG8);
+	dwords[10] = REG_READ(DMCUB_REG_INBOX0_MSG9);
+	dwords[11] = REG_READ(DMCUB_REG_INBOX0_MSG10);
+	dwords[12] = REG_READ(DMCUB_REG_INBOX0_MSG11);
+	dwords[13] = REG_READ(DMCUB_REG_INBOX0_MSG12);
+	dwords[14] = REG_READ(DMCUB_REG_INBOX0_MSG13);
+	dwords[15] = REG_READ(DMCUB_REG_INBOX0_MSG14);
+}
+
+void dmub_dcn42_write_reg_inbox0_rsp_int_ack(struct dmub_srv *dmub)
+{
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_ACK, 1);
+}
+
+void dmub_dcn42_clear_reg_inbox0_rsp_int_ack(struct dmub_srv *dmub)
+{
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_ACK, 0);
+}
+
+void dmub_dcn42_enable_reg_inbox0_rsp_int(struct dmub_srv *dmub, bool enable)
+{
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_EN, enable ? 1:0);
+}
+
+void dmub_dcn42_write_reg_outbox0_rdy_int_ack(struct dmub_srv *dmub)
+{
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_ACK, 1);
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_ACK, 0);
+}
+
+void dmub_dcn42_read_reg_outbox0_msg(struct dmub_srv *dmub, uint32_t *msg)
+{
+	*msg = REG_READ(DMCUB_REG_OUTBOX0_MSG0);
+}
+
+
+void dmub_dcn42_enable_reg_outbox0_rdy_int(struct dmub_srv *dmub, bool enable)
+{
+	REG_UPDATE(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_EN, enable ? 1:0);
+}
+
+uint32_t dmub_dcn42_read_reg_outbox0_rdy_int_status(struct dmub_srv *dmub)
+{
+	uint32_t status;
+
+	REG_GET(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_STAT, &status);
+	return status;
+}
+
+void dmub_dcn42_setup_mailbox(struct dmub_srv *dmub,
+		const struct dmub_region *inbox1)
+{
+	REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, inbox1->base);
+	REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base);
+}
+
+void dmub_dcn42_set_gpint(struct dmub_srv *dmub,
+		union dmub_gpint_data_register reg)
+{
+	REG_WRITE(DMCUB_GPINT_DATAIN1, reg.all);
+}
+
+bool dmub_dcn42_is_gpint_acked(struct dmub_srv *dmub,
+		union dmub_gpint_data_register reg)
+{
+	union dmub_gpint_data_register test;
+
+	reg.bits.status = 0;
+	test.all = REG_READ(DMCUB_GPINT_DATAIN1);
+
+	return test.all == reg.all;
+}
+
+uint32_t dmub_dcn42_get_gpint_response(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH7);
+}
+
+uint32_t dmub_dcn42_get_gpint_dataout(struct dmub_srv *dmub)
+{
+	uint32_t dataout = REG_READ(DMCUB_GPINT_DATAOUT);
+
+	REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 0);
+
+	REG_WRITE(DMCUB_GPINT_DATAOUT, 0);
+	REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 1);
+	REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 0);
+
+	REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 1);
+
+	return dataout;
+}
+
+uint32_t dmub_dcn42_get_outbox0_wptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_OUTBOX0_WPTR);
+}
+
+void dmub_dcn42_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
+{
+	REG_WRITE(DMCUB_OUTBOX0_RPTR, rptr_offset);
+}
+
+uint32_t dmub_dcn42_get_current_time(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_TIMER_CURRENT);
+}
+
+void dmub_dcn42_get_diagnostic_data(struct dmub_srv *dmub)
+{
+	uint32_t is_dmub_enabled, is_soft_reset, is_sec_reset, is_pwait;
+	uint32_t is_traceport_enabled, is_cw0_enabled, is_cw6_enabled;
+	struct dmub_timeout_info timeout = {0};
+
+	if (!dmub)
+		return;
+
+	/* timeout data filled externally, cache before resetting memory */
+	timeout = dmub->debug.timeout_info;
+	memset(&dmub->debug, 0, sizeof(dmub->debug));
+	dmub->debug.timeout_info = timeout;
+
+	dmub->debug.dmcub_version = dmub->fw_version;
+
+	dmub->debug.scratch[0] = REG_READ(DMCUB_SCRATCH0);
+	dmub->debug.scratch[1] = REG_READ(DMCUB_SCRATCH1);
+	dmub->debug.scratch[2] = REG_READ(DMCUB_SCRATCH2);
+	dmub->debug.scratch[3] = REG_READ(DMCUB_SCRATCH3);
+	dmub->debug.scratch[4] = REG_READ(DMCUB_SCRATCH4);
+	dmub->debug.scratch[5] = REG_READ(DMCUB_SCRATCH5);
+	dmub->debug.scratch[6] = REG_READ(DMCUB_SCRATCH6);
+	dmub->debug.scratch[7] = REG_READ(DMCUB_SCRATCH7);
+	dmub->debug.scratch[8] = REG_READ(DMCUB_SCRATCH8);
+	dmub->debug.scratch[9] = REG_READ(DMCUB_SCRATCH9);
+	dmub->debug.scratch[10] = REG_READ(DMCUB_SCRATCH10);
+	dmub->debug.scratch[11] = REG_READ(DMCUB_SCRATCH11);
+	dmub->debug.scratch[12] = REG_READ(DMCUB_SCRATCH12);
+	dmub->debug.scratch[13] = REG_READ(DMCUB_SCRATCH13);
+	dmub->debug.scratch[14] = REG_READ(DMCUB_SCRATCH14);
+	dmub->debug.scratch[15] = REG_READ(DMCUB_SCRATCH15);
+	dmub->debug.scratch[16] = REG_READ(DMCUB_SCRATCH16);
+
+	dmub->debug.undefined_address_fault_addr = REG_READ(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR);
+	dmub->debug.inst_fetch_fault_addr = REG_READ(DMCUB_INST_FETCH_FAULT_ADDR);
+	dmub->debug.data_write_fault_addr = REG_READ(DMCUB_DATA_WRITE_FAULT_ADDR);
+
+	dmub->debug.inbox1_rptr = REG_READ(DMCUB_INBOX1_RPTR);
+	dmub->debug.inbox1_wptr = REG_READ(DMCUB_INBOX1_WPTR);
+	dmub->debug.inbox1_size = REG_READ(DMCUB_INBOX1_SIZE);
+
+	dmub->debug.inbox0_rptr = REG_READ(DMCUB_INBOX0_RPTR);
+	dmub->debug.inbox0_wptr = REG_READ(DMCUB_INBOX0_WPTR);
+	dmub->debug.inbox0_size = REG_READ(DMCUB_INBOX0_SIZE);
+
+	dmub->debug.outbox1_rptr = REG_READ(DMCUB_OUTBOX1_RPTR);
+	dmub->debug.outbox1_wptr = REG_READ(DMCUB_OUTBOX1_WPTR);
+	dmub->debug.outbox1_size = REG_READ(DMCUB_OUTBOX1_SIZE);
+
+	REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_dmub_enabled);
+	ASSERT(is_dmub_enabled <= 0xFF);
+	dmub->debug.is_dmcub_enabled = (uint8_t)is_dmub_enabled;
+
+	REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &is_pwait);
+	ASSERT(is_pwait <= 0xFF);
+	dmub->debug.is_pwait = (uint8_t)is_pwait;
+
+	REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &is_soft_reset);
+	ASSERT(is_soft_reset <= 0xFF);
+	dmub->debug.is_dmcub_soft_reset = (uint8_t)is_soft_reset;
+
+	REG_GET(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS, &is_sec_reset);
+	ASSERT(is_sec_reset <= 0xFF);
+	dmub->debug.is_dmcub_secure_reset = (uint8_t)is_sec_reset;
+
+	REG_GET(DMCUB_CNTL, DMCUB_TRACEPORT_EN, &is_traceport_enabled);
+	ASSERT(is_traceport_enabled <= 0xFF);
+	dmub->debug.is_traceport_en  = (uint8_t)is_traceport_enabled;
+
+	REG_GET(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE, &is_cw0_enabled);
+	ASSERT(is_cw0_enabled <= 0xFF);
+	dmub->debug.is_cw0_enabled = (uint8_t)is_cw0_enabled;
+
+	REG_GET(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE, &is_cw6_enabled);
+	ASSERT(is_cw6_enabled <= 0xFF);
+	dmub->debug.is_cw6_enabled = (uint8_t)is_cw6_enabled;
+
+	dmub->debug.gpint_datain0 = REG_READ(DMCUB_GPINT_DATAIN0);
+}
+
+bool dmub_dcn42_get_preos_fw_info(struct dmub_srv *dmub)
+{
+	uint64_t region3_cw5_offset;
+	uint32_t top_addr, top_addr_enable, offset_low;
+	uint32_t offset_high, base_addr, fw_version;
+	bool is_vbios_fw = false;
+
+	memset(&dmub->preos_info, 0, sizeof(dmub->preos_info));
+
+	fw_version = REG_READ(DMCUB_SCRATCH1);
+	is_vbios_fw = ((fw_version >> 6) & 0x01) ? true : false;
+	if (!is_vbios_fw)
+		return false;
+
+	dmub->preos_info.boot_status = REG_READ(DMCUB_SCRATCH0);
+	dmub->preos_info.fw_version = REG_READ(DMCUB_SCRATCH1);
+	dmub->preos_info.boot_options = REG_READ(DMCUB_SCRATCH14);
+	REG_GET(DMCUB_REGION3_CW5_TOP_ADDRESS,
+		DMCUB_REGION3_CW5_ENABLE, &top_addr_enable);
+	if (top_addr_enable) {
+		dmub_dcn42_get_fb_base_offset(dmub,
+			&dmub->preos_info.fb_base, &dmub->preos_info.fb_offset);
+		offset_low = REG_READ(DMCUB_REGION3_CW5_OFFSET);
+		offset_high = REG_READ(DMCUB_REGION3_CW5_OFFSET_HIGH);
+		region3_cw5_offset = ((uint64_t)offset_high << 32) | offset_low;
+		dmub->preos_info.trace_buffer_phy_addr = region3_cw5_offset
+			- dmub->preos_info.fb_base + dmub->preos_info.fb_offset;
+
+		REG_GET(DMCUB_REGION3_CW5_TOP_ADDRESS,
+			DMCUB_REGION3_CW5_TOP_ADDRESS, &top_addr);
+		base_addr = REG_READ(DMCUB_REGION3_CW5_BASE_ADDRESS) & 0x1FFFFFFF;
+		dmub->preos_info.trace_buffer_size =
+			(top_addr > base_addr) ? (top_addr - base_addr + 1) : 0;
+	}
+
+	return true;
+}
+
+void dmub_dcn42_write_reg_outbox0_rsp(struct dmub_srv *dmub, uint32_t *rsp)
+{
+	REG_WRITE(DMCUB_REG_OUTBOX0_RSP, *rsp);
+}
+
+uint32_t dmub_dcn42_read_reg_outbox0_rsp_int_status(struct dmub_srv *dmub)
+{
+	uint32_t status;
+
+	REG_GET(DMCUB_INTERRUPT_STATUS, DMCUB_REG_OUTBOX0_RSP_INT_STAT, &status);
+	return status;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn42.h

@@ -0,0 +1,303 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2026 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _DMUB_DCN42_H_
+#define _DMUB_DCN42_H_
+
+#include "dmub_dcn35.h"
+#include "dmub_dcn401.h"
+
+
+struct dmub_srv;
+
+/* DCN42 register definitions. */
+
+#define DMUB_DCN42_REGS() \
+	DMUB_SR(DMCUB_CNTL) \
+	DMUB_SR(DMCUB_CNTL2) \
+	DMUB_SR(DMCUB_SEC_CNTL) \
+	DMUB_SR(DMCUB_INBOX0_SIZE) \
+	DMUB_SR(DMCUB_INBOX0_RPTR) \
+	DMUB_SR(DMCUB_INBOX0_WPTR) \
+	DMUB_SR(DMCUB_INBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_INBOX1_SIZE) \
+	DMUB_SR(DMCUB_INBOX1_RPTR) \
+	DMUB_SR(DMCUB_INBOX1_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX0_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX0_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX0_WPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_OUTBOX1_SIZE) \
+	DMUB_SR(DMCUB_OUTBOX1_RPTR) \
+	DMUB_SR(DMCUB_OUTBOX1_WPTR) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION4_OFFSET) \
+	DMUB_SR(DMCUB_REGION4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION5_OFFSET) \
+	DMUB_SR(DMCUB_REGION5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION6_OFFSET) \
+	DMUB_SR(DMCUB_REGION6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_SCRATCH0) \
+	DMUB_SR(DMCUB_SCRATCH1) \
+	DMUB_SR(DMCUB_SCRATCH2) \
+	DMUB_SR(DMCUB_SCRATCH3) \
+	DMUB_SR(DMCUB_SCRATCH4) \
+	DMUB_SR(DMCUB_SCRATCH5) \
+	DMUB_SR(DMCUB_SCRATCH6) \
+	DMUB_SR(DMCUB_SCRATCH7) \
+	DMUB_SR(DMCUB_SCRATCH8) \
+	DMUB_SR(DMCUB_SCRATCH9) \
+	DMUB_SR(DMCUB_SCRATCH10) \
+	DMUB_SR(DMCUB_SCRATCH11) \
+	DMUB_SR(DMCUB_SCRATCH12) \
+	DMUB_SR(DMCUB_SCRATCH13) \
+	DMUB_SR(DMCUB_SCRATCH14) \
+	DMUB_SR(DMCUB_SCRATCH15) \
+	DMUB_SR(DMCUB_SCRATCH16) \
+	DMUB_SR(DMCUB_SCRATCH17) \
+	DMUB_SR(DMCUB_SCRATCH18) \
+	DMUB_SR(DMCUB_SCRATCH19) \
+	DMUB_SR(DMCUB_SCRATCH20) \
+	DMUB_SR(DMCUB_SCRATCH21) \
+	DMUB_SR(DMCUB_GPINT_DATAIN0) \
+	DMUB_SR(DMCUB_GPINT_DATAIN1) \
+	DMUB_SR(DMCUB_GPINT_DATAOUT) \
+	DMUB_SR(MMHUBBUB_SOFT_RESET) \
+	DMUB_SR(DCN_VM_FB_LOCATION_BASE) \
+	DMUB_SR(DCN_VM_FB_OFFSET) \
+	DMUB_SR(DMCUB_TIMER_CURRENT) \
+	DMUB_SR(DMCUB_INST_FETCH_FAULT_ADDR) \
+	DMUB_SR(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR) \
+	DMUB_SR(DMCUB_DATA_WRITE_FAULT_ADDR) \
+	DMUB_SR(DMCUB_REGION3_TMR_AXI_SPACE) \
+	DMUB_SR(DMCUB_INTERRUPT_ENABLE) \
+	DMUB_SR(DMCUB_INTERRUPT_ACK) \
+	DMUB_SR(DMU_CLK_CNTL) \
+	DMUB_SR(DMCUB_INTERRUPT_STATUS) \
+	DMUB_SR(DMCUB_REG_INBOX0_RDY) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG0) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG1) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG2) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG3) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG4) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG5) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG6) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG7) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG8) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG9) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG10) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG11) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG12) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG13) \
+	DMUB_SR(DMCUB_REG_INBOX0_MSG14) \
+	DMUB_SR(DMCUB_REG_INBOX0_RSP) \
+	DMUB_SR(DMCUB_REG_OUTBOX0_RDY) \
+	DMUB_SR(DMCUB_REG_OUTBOX0_MSG0) \
+	DMUB_SR(DMCUB_REG_OUTBOX0_RSP) \
+	DMUB_SR(HOST_INTERRUPT_CSR)
+
+#define DMUB_DCN42_FIELDS() \
+	DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_TRACEPORT_EN) \
+	DMUB_SF(DMCUB_CNTL2, DMCUB_SOFT_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_MEM_UNIT_ID) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_ENABLE) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_ENABLE) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION5_TOP_ADDRESS, DMCUB_REGION5_ENABLE) \
+	DMUB_SF(DMCUB_REGION6_TOP_ADDRESS, DMCUB_REGION6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION6_TOP_ADDRESS, DMCUB_REGION6_ENABLE) \
+	DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET) \
+	DMUB_SF(DCN_VM_FB_LOCATION_BASE, FB_BASE) \
+	DMUB_SF(DCN_VM_FB_OFFSET, FB_OFFSET) \
+	DMUB_SF(DMCUB_INBOX0_WPTR, DMCUB_INBOX0_WPTR) \
+	DMUB_SF(DMCUB_REGION3_TMR_AXI_SPACE, DMCUB_REGION3_TMR_AXI_SPACE) \
+	DMUB_SF(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN) \
+	DMUB_SF(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS) \
+	DMUB_SF(DMU_CLK_CNTL, LONO_DISPCLK_GATE_DISABLE) \
+	DMUB_SF(DMU_CLK_CNTL, LONO_SOCCLK_GATE_DISABLE) \
+	DMUB_SF(DMU_CLK_CNTL, LONO_DMCUBCLK_GATE_DISABLE) \
+	DMUB_SF(DMCUB_INTERRUPT_STATUS, DMCUB_REG_OUTBOX0_RSP_INT_STAT) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_ACK) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_STAT) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_INBOX0_RSP_INT_EN) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_ACK) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_STAT) \
+	DMUB_SF(HOST_INTERRUPT_CSR, HOST_REG_OUTBOX0_RDY_INT_EN)
+
+struct dmub_srv_dcn42_reg_offset {
+#define DMUB_SR(reg) uint32_t reg;
+	DMUB_DCN42_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+};
+
+struct dmub_srv_dcn42_reg_shift {
+#define DMUB_SF(reg, field) uint8_t reg##__##field;
+	DMUB_DCN42_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_dcn42_reg_mask {
+#define DMUB_SF(reg, field) uint32_t reg##__##field;
+	DMUB_DCN42_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_dcn42_regs {
+	struct dmub_srv_dcn42_reg_offset offset;
+	struct dmub_srv_dcn42_reg_mask mask;
+	struct dmub_srv_dcn42_reg_shift shift;
+};
+
+/* Function declarations */
+
+/* Initialization and configuration */
+void dmub_srv_dcn42_regs_init(struct dmub_srv *dmub, struct dc_context *ctx);
+void dmub_dcn42_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params);
+void dmub_dcn42_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip);
+void dmub_dcn42_configure_dmub_in_system_memory(struct dmub_srv *dmub);
+
+/* Reset and control */
+void dmub_dcn42_reset(struct dmub_srv *dmub);
+void dmub_dcn42_reset_release(struct dmub_srv *dmub);
+
+/* Firmware loading */
+void dmub_dcn42_backdoor_load(struct dmub_srv *dmub, const struct dmub_window *cw0, const struct dmub_window *cw1);
+void dmub_dcn42_backdoor_load_zfb_mode(struct dmub_srv *dmub, const struct dmub_window *cw0, const struct dmub_window *cw1);
+void dmub_dcn42_setup_windows(struct dmub_srv *dmub, const struct dmub_window *cw2, const struct dmub_window *cw3, const struct dmub_window *cw4, const struct dmub_window *cw5, const struct dmub_window *cw6, const struct dmub_window *region6);
+
+/* Mailbox operations - Inbox1 */
+void dmub_dcn42_setup_mailbox(struct dmub_srv *dmub, const struct dmub_region *inbox1);
+uint32_t dmub_dcn42_get_inbox1_wptr(struct dmub_srv *dmub);
+uint32_t dmub_dcn42_get_inbox1_rptr(struct dmub_srv *dmub);
+void dmub_dcn42_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset);
+
+/* Mailbox operations - Outbox1 */
+void dmub_dcn42_setup_out_mailbox(struct dmub_srv *dmub, const struct dmub_region *outbox1);
+uint32_t dmub_dcn42_get_outbox1_wptr(struct dmub_srv *dmub);
+void dmub_dcn42_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+/* Mailbox operations - Outbox0 */
+void dmub_dcn42_setup_outbox0(struct dmub_srv *dmub, const struct dmub_region *outbox0);
+uint32_t dmub_dcn42_get_outbox0_wptr(struct dmub_srv *dmub);
+void dmub_dcn42_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset);
+
+/* Mailbox operations - Inbox0 */
+void dmub_dcn42_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data);
+void dmub_dcn42_clear_inbox0_ack_register(struct dmub_srv *dmub);
+uint32_t dmub_dcn42_read_inbox0_ack_register(struct dmub_srv *dmub);
+
+/* REG Inbox0/Outbox0 operations */
+void dmub_dcn42_send_reg_inbox0_cmd_msg(struct dmub_srv *dmub, union dmub_rb_cmd *cmd);
+uint32_t dmub_dcn42_read_reg_inbox0_rsp_int_status(struct dmub_srv *dmub);
+void dmub_dcn42_read_reg_inbox0_cmd_rsp(struct dmub_srv *dmub, union dmub_rb_cmd *cmd);
+void dmub_dcn42_write_reg_inbox0_rsp_int_ack(struct dmub_srv *dmub);
+void dmub_dcn42_clear_reg_inbox0_rsp_int_ack(struct dmub_srv *dmub);
+void dmub_dcn42_enable_reg_inbox0_rsp_int(struct dmub_srv *dmub, bool enable);
+
+void dmub_dcn42_write_reg_outbox0_rdy_int_ack(struct dmub_srv *dmub);
+void dmub_dcn42_read_reg_outbox0_msg(struct dmub_srv *dmub, uint32_t *msg);
+void dmub_dcn42_write_reg_outbox0_rsp(struct dmub_srv *dmub, uint32_t *rsp);
+uint32_t dmub_dcn42_read_reg_outbox0_rsp_int_status(struct dmub_srv *dmub);
+void dmub_dcn42_enable_reg_outbox0_rdy_int(struct dmub_srv *dmub, bool enable);
+uint32_t dmub_dcn42_read_reg_outbox0_rdy_int_status(struct dmub_srv *dmub);
+
+/* GPINT operations */
+void dmub_dcn42_set_gpint(struct dmub_srv *dmub, union dmub_gpint_data_register reg);
+bool dmub_dcn42_is_gpint_acked(struct dmub_srv *dmub, union dmub_gpint_data_register reg);
+uint32_t dmub_dcn42_get_gpint_response(struct dmub_srv *dmub);
+uint32_t dmub_dcn42_get_gpint_dataout(struct dmub_srv *dmub);
+
+/* Status and detection */
+bool dmub_dcn42_is_hw_init(struct dmub_srv *dmub);
+bool dmub_dcn42_is_supported(struct dmub_srv *dmub);
+bool dmub_dcn42_is_hw_powered_up(struct dmub_srv *dmub);
+bool dmub_dcn42_should_detect(struct dmub_srv *dmub);
+
+
+/* Firmware boot status and options */
+union dmub_fw_boot_status dmub_dcn42_get_fw_boot_status(struct dmub_srv *dmub);
+union dmub_fw_boot_options dmub_dcn42_get_fw_boot_option(struct dmub_srv *dmub);
+
+/* Timing and diagnostics */
+uint32_t dmub_dcn42_get_current_time(struct dmub_srv *dmub);
+void dmub_dcn42_get_diagnostic_data(struct dmub_srv *dmub);
+bool dmub_dcn42_get_preos_fw_info(struct dmub_srv *dmub);
+
+#endif /* _DMUB_DCN42_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn42b.c

@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright 2026 Advanced Micro Devices, Inc. */
+
+#include "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn42b.h"
+
+#include "dcn/dcn_4_2_1_offset.h"
+#include "dcn/dcn_4_2_1_sh_mask.h"
+
+#define BASE_INNER(seg) ctx->dcn_reg_offsets[seg]
+#define CTX dmub
+#define REGS dmub->regs_dcn42
+#define REG_OFFSET_EXP(reg_name) BASE(reg##reg_name##_BASE_IDX) + reg##reg_name
+
+void dmub_srv_dcn42b_regs_init(struct dmub_srv *dmub, struct dc_context *ctx)
+{
+	struct dmub_srv_dcn42_regs *regs = dmub->regs_dcn42;
+#define REG_STRUCT regs
+
+#define DMUB_SR(reg) REG_STRUCT->offset.reg = REG_OFFSET_EXP(reg);
+	DMUB_DCN42_REGS()
+	DMCUB_INTERNAL_REGS()
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) REG_STRUCT->mask.reg##__##field = FD_MASK(reg, field);
+	DMUB_DCN42_FIELDS()
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) REG_STRUCT->shift.reg##__##field = FD_SHIFT(reg, field);
+	DMUB_DCN42_FIELDS()
+#undef DMUB_SF
+#undef REG_STRUCT
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn42b.h

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright 2026 Advanced Micro Devices, Inc. */
+
+#ifndef _DMUB_DCN42B_H_
+#define _DMUB_DCN42B_H_
+
+#include "dmub_dcn42.h"
+
+struct dmub_srv;
+
+void dmub_srv_dcn42b_regs_init(struct dmub_srv *dmub, struct dc_context *ctx);
+
+#endif /* _DMUB_DCN42B_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.c

@@ -0,0 +1,111 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dmub_reg.h"
+#include "../dmub_srv.h"
+
+struct dmub_reg_value_masks {
+	uint32_t value;
+	uint32_t mask;
+};
+
+static inline void
+set_reg_field_value_masks(struct dmub_reg_value_masks *field_value_mask,
+			  uint32_t value, uint32_t mask, uint8_t shift)
+{
+	field_value_mask->value =
+		(field_value_mask->value & ~mask) | (mask & (value << shift));
+	field_value_mask->mask = field_value_mask->mask | mask;
+}
+
+static void set_reg_field_values(struct dmub_reg_value_masks *field_value_mask,
+				 uint32_t addr, int n, uint8_t shift1,
+				 uint32_t mask1, uint32_t field_value1,
+				 va_list ap)
+{
+	(void)addr;
+	uint32_t shift, mask, field_value;
+	int i = 1;
+
+	/* gather all bits value/mask getting updated in this register */
+	set_reg_field_value_masks(field_value_mask, field_value1, mask1,
+				  shift1);
+
+	while (i < n) {
+		shift = va_arg(ap, uint32_t);
+		mask = va_arg(ap, uint32_t);
+		field_value = va_arg(ap, uint32_t);
+
+		ASSERT(shift <= 0xFF);
+		set_reg_field_value_masks(field_value_mask, field_value, mask,
+					  (uint8_t)shift);
+		i++;
+	}
+}
+
+static inline uint32_t get_reg_field_value_ex(uint32_t reg_value, uint32_t mask,
+					      uint8_t shift)
+{
+	return (mask & reg_value) >> shift;
+}
+
+void dmub_reg_update(struct dmub_srv *srv, uint32_t addr, int n, uint8_t shift1,
+		     uint32_t mask1, uint32_t field_value1, ...)
+{
+	struct dmub_reg_value_masks field_value_mask = { 0 };
+	uint32_t reg_val;
+	va_list ap;
+
+	va_start(ap, field_value1);
+	set_reg_field_values(&field_value_mask, addr, n, shift1, mask1,
+			     field_value1, ap);
+	va_end(ap);
+
+	reg_val = srv->funcs.reg_read(srv->user_ctx, addr);
+	reg_val = (reg_val & ~field_value_mask.mask) | field_value_mask.value;
+	srv->funcs.reg_write(srv->user_ctx, addr, reg_val);
+}
+
+void dmub_reg_set(struct dmub_srv *srv, uint32_t addr, uint32_t reg_val, int n,
+		  uint8_t shift1, uint32_t mask1, uint32_t field_value1, ...)
+{
+	struct dmub_reg_value_masks field_value_mask = { 0 };
+	va_list ap;
+
+	va_start(ap, field_value1);
+	set_reg_field_values(&field_value_mask, addr, n, shift1, mask1,
+			     field_value1, ap);
+	va_end(ap);
+
+	reg_val = (reg_val & ~field_value_mask.mask) | field_value_mask.value;
+	srv->funcs.reg_write(srv->user_ctx, addr, reg_val);
+}
+
+void dmub_reg_get(struct dmub_srv *srv, uint32_t addr, uint8_t shift,
+		  uint32_t mask, uint32_t *field_value)
+{
+	uint32_t reg_val = srv->funcs.reg_read(srv->user_ctx, addr);
+	*field_value = get_reg_field_value_ex(reg_val, mask, shift);
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.h

@@ -0,0 +1,123 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_REG_H_
+#define _DMUB_REG_H_
+
+#include "../inc/dmub_cmd.h"
+
+struct dmub_srv;
+
+/* Register offset and field lookup. */
+
+#define BASE(seg) BASE_INNER(seg)
+
+#define REG_OFFSET(reg_name) (BASE(mm##reg_name##_BASE_IDX) + mm##reg_name)
+
+#define FD_SHIFT(reg_name, field) reg_name##__##field##__SHIFT
+
+#define FD_MASK(reg_name, field) reg_name##__##field##_MASK
+
+#define REG(reg) (REGS)->offset.reg
+
+#define FD(reg_field) (REGS)->shift.reg_field, (REGS)->mask.reg_field
+
+#define FN(reg_name, field) FD(reg_name##__##field)
+
+/* Register reads and writes. */
+
+#define REG_READ(reg) ((CTX)->funcs.reg_read((CTX)->user_ctx, REG(reg)))
+
+#define REG_WRITE(reg, val) \
+	((CTX)->funcs.reg_write((CTX)->user_ctx, REG(reg), (val)))
+
+/* Register field setting. */
+
+#define REG_SET_N(reg_name, n, initial_val, ...) \
+	dmub_reg_set(CTX, REG(reg_name), initial_val, n, __VA_ARGS__)
+
+#define REG_SET(reg_name, initial_val, field, val) \
+		REG_SET_N(reg_name, 1, initial_val, \
+				FN(reg_name, field), val)
+
+#define REG_SET_2(reg, init_value, f1, v1, f2, v2) \
+		REG_SET_N(reg, 2, init_value, \
+				FN(reg, f1), v1, \
+				FN(reg, f2), v2)
+
+#define REG_SET_3(reg, init_value, f1, v1, f2, v2, f3, v3) \
+		REG_SET_N(reg, 3, init_value, \
+				FN(reg, f1), v1, \
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3)
+
+#define REG_SET_4(reg, init_value, f1, v1, f2, v2, f3, v3, f4, v4) \
+		REG_SET_N(reg, 4, init_value, \
+				FN(reg, f1), v1, \
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4)
+
+/* Register field updating. */
+
+#define REG_UPDATE_N(reg_name, n, ...)\
+		dmub_reg_update(CTX, REG(reg_name), n, __VA_ARGS__)
+
+#define REG_UPDATE(reg_name, field, val)	\
+		REG_UPDATE_N(reg_name, 1, \
+				FN(reg_name, field), val)
+
+#define REG_UPDATE_2(reg, f1, v1, f2, v2)	\
+		REG_UPDATE_N(reg, 2,\
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2)
+
+#define REG_UPDATE_3(reg, f1, v1, f2, v2, f3, v3) \
+		REG_UPDATE_N(reg, 3, \
+				FN(reg, f1), v1, \
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3)
+
+#define REG_UPDATE_4(reg, f1, v1, f2, v2, f3, v3, f4, v4) \
+		REG_UPDATE_N(reg, 4, \
+				FN(reg, f1), v1, \
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4)
+
+/* Register field getting. */
+#define REG_GET(reg_name, field, val) \
+	dmub_reg_get(CTX, REG(reg_name), FN(reg_name, field), val)
+
+void dmub_reg_set(struct dmub_srv *srv, uint32_t addr, uint32_t reg_val, int n,
+		  uint8_t shift1, uint32_t mask1, uint32_t field_value1, ...);
+
+void dmub_reg_update(struct dmub_srv *srv, uint32_t addr, int n, uint8_t shift1,
+		     uint32_t mask1, uint32_t field_value1, ...);
+
+void dmub_reg_get(struct dmub_srv *srv, uint32_t addr, uint8_t shift,
+		  uint32_t mask, uint32_t *field_value);
+
+#endif /* _DMUB_REG_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c

@@ -0,0 +1,128 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dmub/dmub_srv_stat.h"
+#include "dmub/inc/dmub_cmd.h"
+
+/**
+ * DOC: DMUB_SRV STAT Interface
+ *
+ * These interfaces are called without acquiring DAL and DC locks.
+ * Hence, there is limitations on whese interfaces can access. Only
+ * variables exclusively defined for these interfaces can be modified.
+ */
+
+/**
+ * dmub_srv_stat_get_notification - Retrieves a dmub outbox notification, set up dmub notification
+ *                                  structure with message information. Also a pending bit if queue
+ *                                  is having more notifications
+ *  @dmub: dmub srv structure
+ *  @notify: dmub notification structure to be filled up
+ *
+ *  Returns: dmub_status
+ */
+enum dmub_status dmub_srv_stat_get_notification(struct dmub_srv *dmub,
+						struct dmub_notification *notify)
+{
+	/**
+	 * This function is called without dal and dc locks, so
+	 * we shall not modify any dmub variables, only dmub->outbox1_rb
+	 * is exempted as it is exclusively accessed by this function
+	 */
+	union dmub_rb_out_cmd cmd = {0};
+
+	if (!dmub->hw_init) {
+		notify->type = DMUB_NOTIFICATION_NO_DATA;
+		notify->pending_notification = false;
+		return DMUB_STATUS_INVALID;
+	}
+
+	/* Get write pointer which is updated by dmub */
+	dmub->outbox1_rb.wrpt = dmub->hw_funcs.get_outbox1_wptr(dmub);
+
+	if (!dmub_rb_out_front(&dmub->outbox1_rb, &cmd)) {
+		notify->type = DMUB_NOTIFICATION_NO_DATA;
+		notify->pending_notification = false;
+		return DMUB_STATUS_OK;
+	}
+
+	switch (cmd.cmd_common.header.type) {
+	case DMUB_OUT_CMD__DP_AUX_REPLY:
+		notify->type = DMUB_NOTIFICATION_AUX_REPLY;
+		notify->instance = cmd.dp_aux_reply.control.instance;
+		notify->result = cmd.dp_aux_reply.control.result;
+		dmub_memcpy((void *)&notify->aux_reply,
+			(void *)&cmd.dp_aux_reply.reply_data, sizeof(struct aux_reply_data));
+		break;
+	case DMUB_OUT_CMD__DP_HPD_NOTIFY:
+		if (cmd.dp_hpd_notify.hpd_data.hpd_type == DP_HPD) {
+			notify->type = DMUB_NOTIFICATION_HPD;
+			notify->hpd_status = cmd.dp_hpd_notify.hpd_data.hpd_status;
+		} else {
+			notify->type = DMUB_NOTIFICATION_HPD_IRQ;
+		}
+
+		notify->instance = cmd.dp_hpd_notify.hpd_data.instance;
+		notify->result = AUX_RET_SUCCESS;
+		break;
+	case DMUB_OUT_CMD__SET_CONFIG_REPLY:
+		notify->type = DMUB_NOTIFICATION_SET_CONFIG_REPLY;
+		notify->instance = cmd.set_config_reply.set_config_reply_control.instance;
+		notify->sc_status = cmd.set_config_reply.set_config_reply_control.status;
+		break;
+	case DMUB_OUT_CMD__DPIA_NOTIFICATION:
+		notify->type = DMUB_NOTIFICATION_DPIA_NOTIFICATION;
+		notify->instance = cmd.dpia_notification.payload.header.instance;
+		break;
+	case DMUB_OUT_CMD__HPD_SENSE_NOTIFY:
+		notify->type = DMUB_NOTIFICATION_HPD_SENSE_NOTIFY;
+		dmub_memcpy(&notify->hpd_sense_notify,
+			    &cmd.hpd_sense_notify.data,
+			    sizeof(cmd.hpd_sense_notify.data));
+		break;
+	case DMUB_OUT_CMD__FUSED_IO:
+		notify->type = DMUB_NOTIFICATION_FUSED_IO;
+		dmub_memcpy(&notify->fused_request, &cmd.fused_io.request, sizeof(cmd.fused_io.request));
+		break;
+	default:
+		notify->type = DMUB_NOTIFICATION_NO_DATA;
+		break;
+	}
+
+	/* Pop outbox1 ringbuffer and update read pointer */
+	dmub_rb_pop_front(&dmub->outbox1_rb);
+	dmub->hw_funcs.set_outbox1_rptr(dmub, dmub->outbox1_rb.rptr);
+
+	/**
+	 * Notify dc whether dmub has a pending outbox message,
+	 * this is to avoid one more call to dmub_srv_stat_get_notification
+	 */
+	if (dmub_rb_empty(&dmub->outbox1_rb))
+		notify->pending_notification = false;
+	else
+		notify->pending_notification = true;
+
+	return DMUB_STATUS_OK;
+}