Resguardo inicial

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/engine/device/Kbuild

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: MIT
+nvkm-y += nvkm/engine/device/acpi.o
+nvkm-y += nvkm/engine/device/base.o
+nvkm-y += nvkm/engine/device/ctrl.o
+nvkm-y += nvkm/engine/device/pci.o
+nvkm-y += nvkm/engine/device/tegra.o
+nvkm-y += nvkm/engine/device/user.o

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.c

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2014 Red Hat 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: Ben Skeggs
+ */
+#include "acpi.h"
+
+#include <core/device.h>
+#include <subdev/clk.h>
+
+#ifdef CONFIG_ACPI
+static int
+nvkm_acpi_ntfy(struct notifier_block *nb, unsigned long val, void *data)
+{
+	struct nvkm_device *device = container_of(nb, typeof(*device), acpi.nb);
+	struct acpi_bus_event *info = data;
+
+	if (!strcmp(info->device_class, "ac_adapter"))
+		nvkm_clk_pwrsrc(device);
+
+	return NOTIFY_DONE;
+}
+#endif
+
+void
+nvkm_acpi_fini(struct nvkm_device *device)
+{
+#ifdef CONFIG_ACPI
+	unregister_acpi_notifier(&device->acpi.nb);
+#endif
+}
+
+void
+nvkm_acpi_init(struct nvkm_device *device)
+{
+#ifdef CONFIG_ACPI
+	device->acpi.nb.notifier_call = nvkm_acpi_ntfy;
+	register_acpi_notifier(&device->acpi.nb);
+#endif
+}

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.h

@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_DEVICE_ACPI_H__
+#define __NVKM_DEVICE_ACPI_H__
+#include <core/os.h>
+struct nvkm_device;
+
+void nvkm_acpi_init(struct nvkm_device *);
+void nvkm_acpi_fini(struct nvkm_device *);
+#endif

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.c

@@ -0,0 +1,212 @@
+/*
+ * Copyright 2013 Red Hat 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: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "ctrl.h"
+
+#include <core/client.h>
+#include <subdev/clk.h>
+
+#include <nvif/class.h>
+#include <nvif/if0001.h>
+#include <nvif/ioctl.h>
+#include <nvif/unpack.h>
+
+static int
+nvkm_control_mthd_pstate_info(struct nvkm_control *ctrl, void *data, u32 size)
+{
+	union {
+		struct nvif_control_pstate_info_v0 v0;
+	} *args = data;
+	struct nvkm_clk *clk = ctrl->device->clk;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(&ctrl->object, "control pstate info size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(&ctrl->object, "control pstate info vers %d\n",
+			   args->v0.version);
+	} else
+		return ret;
+
+	if (clk) {
+		args->v0.count = clk->state_nr;
+		args->v0.ustate_ac = clk->ustate_ac;
+		args->v0.ustate_dc = clk->ustate_dc;
+		args->v0.pwrsrc = clk->pwrsrc;
+		args->v0.pstate = clk->pstate;
+	} else {
+		args->v0.count = 0;
+		args->v0.ustate_ac = NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE;
+		args->v0.ustate_dc = NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE;
+		args->v0.pwrsrc = -ENODEV;
+		args->v0.pstate = NVIF_CONTROL_PSTATE_INFO_V0_PSTATE_UNKNOWN;
+	}
+
+	return 0;
+}
+
+static int
+nvkm_control_mthd_pstate_attr(struct nvkm_control *ctrl, void *data, u32 size)
+{
+	union {
+		struct nvif_control_pstate_attr_v0 v0;
+	} *args = data;
+	struct nvkm_clk *clk = ctrl->device->clk;
+	const struct nvkm_domain *domain;
+	struct nvkm_pstate *pstate;
+	struct nvkm_cstate *cstate;
+	int i = 0, j = -1;
+	u32 lo, hi;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(&ctrl->object, "control pstate attr size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(&ctrl->object,
+			   "control pstate attr vers %d state %d index %d\n",
+			   args->v0.version, args->v0.state, args->v0.index);
+		if (!clk)
+			return -ENODEV;
+		if (args->v0.state < NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT)
+			return -EINVAL;
+		if (args->v0.state >= clk->state_nr)
+			return -EINVAL;
+	} else
+		return ret;
+	domain = clk->domains;
+
+	while (domain->name != nv_clk_src_max) {
+		if (domain->mname && ++j == args->v0.index)
+			break;
+		domain++;
+	}
+
+	if (domain->name == nv_clk_src_max)
+		return -EINVAL;
+
+	if (args->v0.state != NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT) {
+		list_for_each_entry(pstate, &clk->states, head) {
+			if (i++ == args->v0.state)
+				break;
+		}
+
+		lo = pstate->base.domain[domain->name];
+		hi = lo;
+		list_for_each_entry(cstate, &pstate->list, head) {
+			lo = min(lo, cstate->domain[domain->name]);
+			hi = max(hi, cstate->domain[domain->name]);
+		}
+
+		args->v0.state = pstate->pstate;
+	} else {
+		lo = max(nvkm_clk_read(clk, domain->name), 0);
+		hi = lo;
+	}
+
+	snprintf(args->v0.name, sizeof(args->v0.name), "%s", domain->mname);
+	snprintf(args->v0.unit, sizeof(args->v0.unit), "MHz");
+	args->v0.min = lo / domain->mdiv;
+	args->v0.max = hi / domain->mdiv;
+
+	args->v0.index = 0;
+	while ((++domain)->name != nv_clk_src_max) {
+		if (domain->mname) {
+			args->v0.index = ++j;
+			break;
+		}
+	}
+
+	return 0;
+}
+
+static int
+nvkm_control_mthd_pstate_user(struct nvkm_control *ctrl, void *data, u32 size)
+{
+	union {
+		struct nvif_control_pstate_user_v0 v0;
+	} *args = data;
+	struct nvkm_clk *clk = ctrl->device->clk;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(&ctrl->object, "control pstate user size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(&ctrl->object,
+			   "control pstate user vers %d ustate %d pwrsrc %d\n",
+			   args->v0.version, args->v0.ustate, args->v0.pwrsrc);
+		if (!clk)
+			return -ENODEV;
+	} else
+		return ret;
+
+	if (args->v0.pwrsrc >= 0) {
+		ret |= nvkm_clk_ustate(clk, args->v0.ustate, args->v0.pwrsrc);
+	} else {
+		ret |= nvkm_clk_ustate(clk, args->v0.ustate, 0);
+		ret |= nvkm_clk_ustate(clk, args->v0.ustate, 1);
+	}
+
+	return ret;
+}
+
+static int
+nvkm_control_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
+{
+	struct nvkm_control *ctrl = nvkm_control(object);
+	switch (mthd) {
+	case NVIF_CONTROL_PSTATE_INFO:
+		return nvkm_control_mthd_pstate_info(ctrl, data, size);
+	case NVIF_CONTROL_PSTATE_ATTR:
+		return nvkm_control_mthd_pstate_attr(ctrl, data, size);
+	case NVIF_CONTROL_PSTATE_USER:
+		return nvkm_control_mthd_pstate_user(ctrl, data, size);
+	default:
+		break;
+	}
+	return -EINVAL;
+}
+
+static const struct nvkm_object_func
+nvkm_control = {
+	.mthd = nvkm_control_mthd,
+};
+
+static int
+nvkm_control_new(struct nvkm_device *device, const struct nvkm_oclass *oclass,
+		 void *data, u32 size, struct nvkm_object **pobject)
+{
+	struct nvkm_control *ctrl;
+
+	if (!(ctrl = kzalloc_obj(*ctrl)))
+		return -ENOMEM;
+	*pobject = &ctrl->object;
+	ctrl->device = device;
+
+	nvkm_object_ctor(&nvkm_control, oclass, &ctrl->object);
+	return 0;
+}
+
+const struct nvkm_device_oclass
+nvkm_control_oclass = {
+	.base.oclass = NVIF_CLASS_CONTROL,
+	.base.minver = -1,
+	.base.maxver = -1,
+	.ctor = nvkm_control_new,
+};

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.h

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_DEVICE_CTRL_H__
+#define __NVKM_DEVICE_CTRL_H__
+#define nvkm_control(p) container_of((p), struct nvkm_control, object)
+#include <core/object.h>
+
+struct nvkm_control {
+	struct nvkm_object object;
+	struct nvkm_device *device;
+};
+
+extern const struct nvkm_device_oclass nvkm_control_oclass;
+#endif

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/engine/device/priv.h

@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_DEVICE_PRIV_H__
+#define __NVKM_DEVICE_PRIV_H__
+#include <core/device.h>
+
+#include <subdev/acr.h>
+#include <subdev/bar.h>
+#include <subdev/bios.h>
+#include <subdev/bus.h>
+#include <subdev/clk.h>
+#include <subdev/devinit.h>
+#include <subdev/fault.h>
+#include <subdev/fb.h>
+#include <subdev/fsp.h>
+#include <subdev/fuse.h>
+#include <subdev/gpio.h>
+#include <subdev/gsp.h>
+#include <subdev/i2c.h>
+#include <subdev/iccsense.h>
+#include <subdev/instmem.h>
+#include <subdev/ltc.h>
+#include <subdev/mc.h>
+#include <subdev/mmu.h>
+#include <subdev/mxm.h>
+#include <subdev/pci.h>
+#include <subdev/pmu.h>
+#include <subdev/privring.h>
+#include <subdev/therm.h>
+#include <subdev/timer.h>
+#include <subdev/top.h>
+#include <subdev/vfn.h>
+#include <subdev/volt.h>
+
+#include <engine/bsp.h>
+#include <engine/ce.h>
+#include <engine/cipher.h>
+#include <engine/disp.h>
+#include <engine/dma.h>
+#include <engine/fifo.h>
+#include <engine/gr.h>
+#include <engine/mpeg.h>
+#include <engine/mspdec.h>
+#include <engine/msppp.h>
+#include <engine/msvld.h>
+#include <engine/nvenc.h>
+#include <engine/nvdec.h>
+#include <engine/sec.h>
+#include <engine/sec2.h>
+#include <engine/sw.h>
+#include <engine/vic.h>
+#include <engine/vp.h>
+
+int  nvkm_device_ctor(const struct nvkm_device_func *,
+		      const struct nvkm_device_quirk *,
+		      struct device *, enum nvkm_device_type, u64 handle,
+		      const char *name, const char *cfg, const char *dbg,
+		      struct nvkm_device *);
+int  nvkm_device_init(struct nvkm_device *);
+int  nvkm_device_fini(struct nvkm_device *, enum nvkm_suspend_state suspend);
+#endif

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c

@@ -0,0 +1,359 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+#include <core/tegra.h>
+#ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
+#include "priv.h"
+
+#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
+#include <asm/dma-iommu.h>
+#endif
+
+static int
+nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev)
+{
+	int ret;
+
+	if (tdev->vdd) {
+		ret = regulator_enable(tdev->vdd);
+		if (ret)
+			goto err_power;
+	}
+
+	ret = clk_prepare_enable(tdev->clk);
+	if (ret)
+		goto err_clk;
+	ret = clk_prepare_enable(tdev->clk_ref);
+	if (ret)
+		goto err_clk_ref;
+	ret = clk_prepare_enable(tdev->clk_pwr);
+	if (ret)
+		goto err_clk_pwr;
+	clk_set_rate(tdev->clk_pwr, 204000000);
+	udelay(10);
+
+	if (!tdev->pdev->dev.pm_domain) {
+		reset_control_assert(tdev->rst);
+		udelay(10);
+
+		ret = tegra_pmc_powergate_remove_clamping(tdev->pmc,
+							  TEGRA_POWERGATE_3D);
+		if (ret)
+			goto err_clamp;
+		udelay(10);
+
+		reset_control_deassert(tdev->rst);
+		udelay(10);
+	}
+
+	return 0;
+
+err_clamp:
+	clk_disable_unprepare(tdev->clk_pwr);
+err_clk_pwr:
+	clk_disable_unprepare(tdev->clk_ref);
+err_clk_ref:
+	clk_disable_unprepare(tdev->clk);
+err_clk:
+	if (tdev->vdd)
+		regulator_disable(tdev->vdd);
+err_power:
+	return ret;
+}
+
+static int
+nvkm_device_tegra_power_down(struct nvkm_device_tegra *tdev)
+{
+	int ret;
+
+	clk_disable_unprepare(tdev->clk_pwr);
+	clk_disable_unprepare(tdev->clk_ref);
+	clk_disable_unprepare(tdev->clk);
+	udelay(10);
+
+	if (tdev->vdd) {
+		ret = regulator_disable(tdev->vdd);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static void
+nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev)
+{
+#if IS_ENABLED(CONFIG_IOMMU_API)
+	struct device *dev = &tdev->pdev->dev;
+	unsigned long pgsize_bitmap;
+	int ret;
+
+#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
+	if (dev->archdata.mapping) {
+		struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev);
+
+		arm_iommu_detach_device(dev);
+		arm_iommu_release_mapping(mapping);
+	}
+#endif
+
+	if (!tdev->func->iommu_bit)
+		return;
+
+	mutex_init(&tdev->iommu.mutex);
+
+	if (device_iommu_mapped(dev)) {
+		tdev->iommu.domain = iommu_paging_domain_alloc(dev);
+		if (IS_ERR(tdev->iommu.domain))
+			goto error;
+
+		/*
+		 * A IOMMU is only usable if it supports page sizes smaller
+		 * or equal to the system's PAGE_SIZE, with a preference if
+		 * both are equal.
+		 */
+		pgsize_bitmap = tdev->iommu.domain->pgsize_bitmap;
+		if (pgsize_bitmap & PAGE_SIZE) {
+			tdev->iommu.pgshift = PAGE_SHIFT;
+		} else {
+			tdev->iommu.pgshift = fls(pgsize_bitmap & ~PAGE_MASK);
+			if (tdev->iommu.pgshift == 0) {
+				dev_warn(dev, "unsupported IOMMU page size\n");
+				goto free_domain;
+			}
+			tdev->iommu.pgshift -= 1;
+		}
+
+		ret = iommu_attach_device(tdev->iommu.domain, dev);
+		if (ret)
+			goto free_domain;
+
+		ret = nvkm_mm_init(&tdev->iommu.mm, 0, 0,
+				   (1ULL << tdev->func->iommu_bit) >>
+				   tdev->iommu.pgshift, 1);
+		if (ret)
+			goto detach_device;
+	}
+
+	return;
+
+detach_device:
+	iommu_detach_device(tdev->iommu.domain, dev);
+
+free_domain:
+	iommu_domain_free(tdev->iommu.domain);
+
+error:
+	tdev->iommu.domain = NULL;
+	tdev->iommu.pgshift = 0;
+	dev_err(dev, "cannot initialize IOMMU MM\n");
+#endif
+}
+
+static void
+nvkm_device_tegra_remove_iommu(struct nvkm_device_tegra *tdev)
+{
+#if IS_ENABLED(CONFIG_IOMMU_API)
+	if (tdev->iommu.domain) {
+		nvkm_mm_fini(&tdev->iommu.mm);
+		iommu_detach_device(tdev->iommu.domain, tdev->device.dev);
+		iommu_domain_free(tdev->iommu.domain);
+	}
+#endif
+}
+
+static struct nvkm_device_tegra *
+nvkm_device_tegra(struct nvkm_device *device)
+{
+	return container_of(device, struct nvkm_device_tegra, device);
+}
+
+static struct resource *
+nvkm_device_tegra_resource(struct nvkm_device *device, enum nvkm_bar_id bar)
+{
+	struct nvkm_device_tegra *tdev = nvkm_device_tegra(device);
+	int idx;
+
+	switch (bar) {
+	case NVKM_BAR0_PRI: idx = 0; break;
+	case NVKM_BAR1_FB : idx = 1; break;
+	default:
+		WARN_ON(1);
+		return NULL;
+	}
+
+	return platform_get_resource(tdev->pdev, IORESOURCE_MEM, idx);
+}
+
+static resource_size_t
+nvkm_device_tegra_resource_addr(struct nvkm_device *device, enum nvkm_bar_id bar)
+{
+	struct resource *res = nvkm_device_tegra_resource(device, bar);
+	return res ? res->start : 0;
+}
+
+static resource_size_t
+nvkm_device_tegra_resource_size(struct nvkm_device *device, enum nvkm_bar_id bar)
+{
+	struct resource *res = nvkm_device_tegra_resource(device, bar);
+	return res ? resource_size(res) : 0;
+}
+
+static int
+nvkm_device_tegra_irq(struct nvkm_device *device)
+{
+	struct nvkm_device_tegra *tdev = nvkm_device_tegra(device);
+
+	return platform_get_irq_byname(tdev->pdev, "stall");
+}
+
+static void *
+nvkm_device_tegra_dtor(struct nvkm_device *device)
+{
+	struct nvkm_device_tegra *tdev = nvkm_device_tegra(device);
+	nvkm_device_tegra_power_down(tdev);
+	nvkm_device_tegra_remove_iommu(tdev);
+	return tdev;
+}
+
+static const struct nvkm_device_func
+nvkm_device_tegra_func = {
+	.tegra = nvkm_device_tegra,
+	.dtor = nvkm_device_tegra_dtor,
+	.irq = nvkm_device_tegra_irq,
+	.resource_addr = nvkm_device_tegra_resource_addr,
+	.resource_size = nvkm_device_tegra_resource_size,
+	.cpu_coherent = false,
+};
+
+int
+nvkm_device_tegra_new(const struct nvkm_device_tegra_func *func,
+		      struct platform_device *pdev,
+		      const char *cfg, const char *dbg,
+		      struct nvkm_device **pdevice)
+{
+	struct nvkm_device_tegra *tdev;
+	unsigned long rate;
+	int ret;
+
+	if (!(tdev = kzalloc_obj(*tdev)))
+		return -ENOMEM;
+
+	tdev->func = func;
+	tdev->pdev = pdev;
+
+	tdev->regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(tdev->regs))
+		return PTR_ERR(tdev->regs);
+
+	if (func->require_vdd) {
+		tdev->vdd = devm_regulator_get(&pdev->dev, "vdd");
+		if (IS_ERR(tdev->vdd)) {
+			ret = PTR_ERR(tdev->vdd);
+			goto free;
+		}
+	}
+
+	tdev->rst = devm_reset_control_get(&pdev->dev, "gpu");
+	if (IS_ERR(tdev->rst)) {
+		ret = PTR_ERR(tdev->rst);
+		goto free;
+	}
+
+	tdev->clk = devm_clk_get(&pdev->dev, "gpu");
+	if (IS_ERR(tdev->clk)) {
+		ret = PTR_ERR(tdev->clk);
+		goto free;
+	}
+
+	rate = clk_get_rate(tdev->clk);
+	if (rate == 0) {
+		ret = clk_set_rate(tdev->clk, ULONG_MAX);
+		if (ret < 0)
+			goto free;
+
+		rate = clk_get_rate(tdev->clk);
+
+		dev_dbg(&pdev->dev, "GPU clock set to %lu\n", rate);
+	}
+
+	if (func->require_ref_clk)
+		tdev->clk_ref = devm_clk_get(&pdev->dev, "ref");
+	if (IS_ERR(tdev->clk_ref)) {
+		ret = PTR_ERR(tdev->clk_ref);
+		goto free;
+	}
+
+	tdev->clk_pwr = devm_clk_get(&pdev->dev, "pwr");
+	if (IS_ERR(tdev->clk_pwr)) {
+		ret = PTR_ERR(tdev->clk_pwr);
+		goto free;
+	}
+
+	tdev->pmc = devm_tegra_pmc_get(&pdev->dev);
+	if (IS_ERR(tdev->pmc)) {
+		ret = PTR_ERR(tdev->pmc);
+		goto free;
+	}
+
+	/**
+	 * The IOMMU bit defines the upper limit of the GPU-addressable space.
+	 */
+	ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(tdev->func->iommu_bit));
+	if (ret)
+		goto free;
+
+	nvkm_device_tegra_probe_iommu(tdev);
+
+	ret = nvkm_device_tegra_power_up(tdev);
+	if (ret)
+		goto remove;
+
+	tdev->gpu_speedo = tegra_sku_info.gpu_speedo_value;
+	tdev->gpu_speedo_id = tegra_sku_info.gpu_speedo_id;
+	ret = nvkm_device_ctor(&nvkm_device_tegra_func, NULL, &pdev->dev,
+			       NVKM_DEVICE_TEGRA, pdev->id, NULL,
+			       cfg, dbg, &tdev->device);
+	if (ret)
+		goto powerdown;
+
+	*pdevice = &tdev->device;
+
+	return 0;
+
+powerdown:
+	nvkm_device_tegra_power_down(tdev);
+remove:
+	nvkm_device_tegra_remove_iommu(tdev);
+free:
+	kfree(tdev);
+	return ret;
+}
+#else
+int
+nvkm_device_tegra_new(const struct nvkm_device_tegra_func *func,
+		      struct platform_device *pdev,
+		      const char *cfg, const char *dbg,
+		      struct nvkm_device **pdevice)
+{
+	return -ENOSYS;
+}
+#endif

linux-7.2.3/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c

@@ -0,0 +1,349 @@
+/*
+ * Copyright 2012 Red Hat 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: Ben Skeggs
+ */
+#define nvkm_udevice(p) container_of((p), struct nvkm_udevice, object)
+#include "priv.h"
+#include "ctrl.h"
+
+#include <core/client.h>
+#include <subdev/fb.h>
+#include <subdev/instmem.h>
+#include <subdev/timer.h>
+
+#include <nvif/class.h>
+#include <nvif/cl0080.h>
+#include <nvif/unpack.h>
+
+struct nvkm_udevice {
+	struct nvkm_object object;
+	struct nvkm_device *device;
+};
+
+static int
+nvkm_udevice_info_subdev(struct nvkm_device *device, u64 mthd, u64 *data)
+{
+	struct nvkm_subdev *subdev;
+	enum nvkm_subdev_type type;
+
+	switch (mthd & NV_DEVICE_INFO_UNIT) {
+	case NV_DEVICE_HOST(0): type = NVKM_ENGINE_FIFO; break;
+	default:
+		return -EINVAL;
+	}
+
+	subdev = nvkm_device_subdev(device, type, 0);
+	if (subdev)
+		return nvkm_subdev_info(subdev, mthd, data);
+	return -ENODEV;
+}
+
+static void
+nvkm_udevice_info_v1(struct nvkm_device *device,
+		     struct nv_device_info_v1_data *args)
+{
+	if (args->mthd & NV_DEVICE_INFO_UNIT) {
+		if (nvkm_udevice_info_subdev(device, args->mthd, &args->data))
+			args->mthd = NV_DEVICE_INFO_INVALID;
+		return;
+	}
+	args->mthd = NV_DEVICE_INFO_INVALID;
+}
+
+static int
+nvkm_udevice_info(struct nvkm_udevice *udev, void *data, u32 size)
+{
+	struct nvkm_object *object = &udev->object;
+	struct nvkm_device *device = udev->device;
+	struct nvkm_fb *fb = device->fb;
+	struct nvkm_instmem *imem = device->imem;
+	union {
+		struct nv_device_info_v0 v0;
+		struct nv_device_info_v1 v1;
+	} *args = data;
+	int ret = -ENOSYS, i;
+
+	nvif_ioctl(object, "device info size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v1, 1, 1, true))) {
+		nvif_ioctl(object, "device info vers %d count %d\n",
+			   args->v1.version, args->v1.count);
+		if (args->v1.count * sizeof(args->v1.data[0]) == size) {
+			for (i = 0; i < args->v1.count; i++)
+				nvkm_udevice_info_v1(device, &args->v1.data[i]);
+			return 0;
+		}
+		return -EINVAL;
+	} else
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(object, "device info vers %d\n", args->v0.version);
+	} else
+		return ret;
+
+	switch (device->chipset) {
+	case 0x01a:
+	case 0x01f:
+	case 0x04c:
+	case 0x04e:
+	case 0x063:
+	case 0x067:
+	case 0x068:
+	case 0x0aa:
+	case 0x0ac:
+	case 0x0af:
+		args->v0.platform = NV_DEVICE_INFO_V0_IGP;
+		break;
+	default:
+		switch (device->type) {
+		case NVKM_DEVICE_PCI:
+			args->v0.platform = NV_DEVICE_INFO_V0_PCI;
+			break;
+		case NVKM_DEVICE_AGP:
+			args->v0.platform = NV_DEVICE_INFO_V0_AGP;
+			break;
+		case NVKM_DEVICE_PCIE:
+			args->v0.platform = NV_DEVICE_INFO_V0_PCIE;
+			break;
+		case NVKM_DEVICE_TEGRA:
+			args->v0.platform = NV_DEVICE_INFO_V0_SOC;
+			break;
+		default:
+			WARN_ON(1);
+			break;
+		}
+		break;
+	}
+
+	switch (device->card_type) {
+	case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break;
+	case NV_10:
+	case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break;
+	case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break;
+	case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break;
+	case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break;
+	case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break;
+	case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break;
+	case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break;
+	case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break;
+	case GP100: args->v0.family = NV_DEVICE_INFO_V0_PASCAL; break;
+	case GV100: args->v0.family = NV_DEVICE_INFO_V0_VOLTA; break;
+	case TU100: args->v0.family = NV_DEVICE_INFO_V0_TURING; break;
+	case GA100: args->v0.family = NV_DEVICE_INFO_V0_AMPERE; break;
+	case AD100: args->v0.family = NV_DEVICE_INFO_V0_ADA; break;
+	case GH100: args->v0.family = NV_DEVICE_INFO_V0_HOPPER; break;
+	case GB10x: args->v0.family = NV_DEVICE_INFO_V0_BLACKWELL; break;
+	case GB20x: args->v0.family = NV_DEVICE_INFO_V0_BLACKWELL; break;
+	default:
+		args->v0.family = 0;
+		break;
+	}
+
+	args->v0.chipset  = device->chipset;
+	args->v0.revision = device->chiprev;
+	if (fb && fb->ram)
+		args->v0.ram_size = args->v0.ram_user = fb->ram->size;
+	else
+		args->v0.ram_size = args->v0.ram_user = 0;
+	if (imem && args->v0.ram_size > 0)
+		args->v0.ram_user = args->v0.ram_user - imem->reserved;
+
+	snprintf(args->v0.chip, sizeof(args->v0.chip), "%s", device->chip->name);
+	snprintf(args->v0.name, sizeof(args->v0.name), "%s", device->name);
+	return 0;
+}
+
+static int
+nvkm_udevice_time(struct nvkm_udevice *udev, void *data, u32 size)
+{
+	struct nvkm_object *object = &udev->object;
+	struct nvkm_device *device = udev->device;
+	union {
+		struct nv_device_time_v0 v0;
+	} *args = data;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(object, "device time size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(object, "device time vers %d\n", args->v0.version);
+		args->v0.time = nvkm_timer_read(device->timer);
+	}
+
+	return ret;
+}
+
+static int
+nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	nvif_ioctl(object, "device mthd %08x\n", mthd);
+	switch (mthd) {
+	case NV_DEVICE_V0_INFO:
+		return nvkm_udevice_info(udev, data, size);
+	case NV_DEVICE_V0_TIME:
+		return nvkm_udevice_time(udev, data, size);
+	default:
+		break;
+	}
+	return -EINVAL;
+}
+
+static int
+nvkm_udevice_map(struct nvkm_object *object, void *argv, u32 argc,
+		 enum nvkm_object_map *type, u64 *addr, u64 *size)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	struct nvkm_device *device = udev->device;
+	*type = NVKM_OBJECT_MAP_IO;
+	*addr = device->func->resource_addr(device, NVKM_BAR0_PRI);
+	*size = device->func->resource_size(device, NVKM_BAR0_PRI);
+	return 0;
+}
+
+static int
+nvkm_udevice_fini(struct nvkm_object *object, enum nvkm_suspend_state suspend)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	struct nvkm_device *device = udev->device;
+	int ret = 0;
+
+	mutex_lock(&device->mutex);
+	if (!--device->refcount) {
+		ret = nvkm_device_fini(device, suspend);
+		if (ret && suspend) {
+			device->refcount++;
+			goto done;
+		}
+	}
+
+done:
+	mutex_unlock(&device->mutex);
+	return ret;
+}
+
+static int
+nvkm_udevice_init(struct nvkm_object *object)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	struct nvkm_device *device = udev->device;
+	int ret = 0;
+
+	mutex_lock(&device->mutex);
+	if (!device->refcount++) {
+		ret = nvkm_device_init(device);
+		if (ret) {
+			device->refcount--;
+			goto done;
+		}
+	}
+
+done:
+	mutex_unlock(&device->mutex);
+	return ret;
+}
+
+static int
+nvkm_udevice_child_new(const struct nvkm_oclass *oclass,
+		       void *data, u32 size, struct nvkm_object **pobject)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(oclass->parent);
+	const struct nvkm_device_oclass *sclass = oclass->priv;
+	return sclass->ctor(udev->device, oclass, data, size, pobject);
+}
+
+static int
+nvkm_udevice_child_get(struct nvkm_object *object, int index,
+		       struct nvkm_oclass *oclass)
+{
+	struct nvkm_udevice *udev = nvkm_udevice(object);
+	struct nvkm_device *device = udev->device;
+	struct nvkm_engine *engine;
+	u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) |
+		   (1ULL << NVKM_ENGINE_FIFO) |
+		   (1ULL << NVKM_ENGINE_DISP);
+	const struct nvkm_device_oclass *sclass = NULL;
+	int i;
+
+	for (; i = __ffs64(mask), mask && !sclass; mask &= ~(1ULL << i)) {
+		if (!(engine = nvkm_device_engine(device, i, 0)) ||
+		    !(engine->func->base.sclass))
+			continue;
+		oclass->engine = engine;
+
+		index -= engine->func->base.sclass(oclass, index, &sclass);
+	}
+
+	if (!sclass) {
+		if (index-- == 0)
+			sclass = &nvkm_control_oclass;
+		else if (device->mmu && index-- == 0)
+			sclass = &device->mmu->user;
+		else if (device->fault && index-- == 0)
+			sclass = &device->fault->user;
+		else if (device->vfn && index-- == 0)
+			sclass = &device->vfn->user;
+		else
+			return -EINVAL;
+
+		oclass->base = sclass->base;
+		oclass->engine = NULL;
+	}
+
+	oclass->ctor = nvkm_udevice_child_new;
+	oclass->priv = sclass;
+	return 0;
+}
+
+static const struct nvkm_object_func
+nvkm_udevice = {
+	.init = nvkm_udevice_init,
+	.fini = nvkm_udevice_fini,
+	.mthd = nvkm_udevice_mthd,
+	.map = nvkm_udevice_map,
+	.sclass = nvkm_udevice_child_get,
+};
+
+static int
+nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size,
+		 struct nvkm_object **pobject)
+{
+	struct nvkm_client *client = oclass->client;
+	struct nvkm_udevice *udev;
+
+	if (!(udev = kzalloc_obj(*udev)))
+		return -ENOMEM;
+	nvkm_object_ctor(&nvkm_udevice, oclass, &udev->object);
+	*pobject = &udev->object;
+
+	/* find the device that matches what the client requested */
+	udev->device = nvkm_device_find(client->device);
+	if (!udev->device)
+		return -ENODEV;
+
+	return 0;
+}
+
+const struct nvkm_sclass
+nvkm_udevice_sclass = {
+	.oclass = NV_DEVICE,
+	.minver = 0,
+	.maxver = 0,
+	.ctor = nvkm_udevice_new,
+};