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linux-7.2.3/arch/mips/include/asm/mach-ip30/cpu-feature-overrides.h

@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * IP30/Octane cpu-features overrides.
+ *
+ * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org>
+ *		 2004-2007 Stanislaw Skowronek <skylark@unaligned.org>
+ *		 2009 Johannes Dickgreber <tanzy@gmx.de>
+ *		 2015 Joshua Kinard <linux@kumba.dev>
+ *
+ */
+#ifndef __ASM_MACH_IP30_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_IP30_CPU_FEATURE_OVERRIDES_H
+
+#include <asm/cpu.h>
+
+/*
+ * IP30 only supports R1[024]000 processors, all using the same config
+ */
+#define cpu_has_tlb			1
+#define cpu_has_tlbinv			0
+#define cpu_has_segments		0
+#define cpu_has_eva			0
+#define cpu_has_htw			0
+#define cpu_has_rixiex			0
+#define cpu_has_maar			0
+#define cpu_has_rw_llb			0
+#define cpu_has_3kex			0
+#define cpu_has_4kex			1
+#define cpu_has_3k_cache		0
+#define cpu_has_4k_cache		1
+#define cpu_has_nofpuex			0
+#define cpu_has_32fpr			1
+#define cpu_has_counter			1
+#define cpu_has_watch			1
+#define cpu_has_64bits			1
+#define cpu_has_divec			0
+#define cpu_has_vce			0
+#define cpu_has_cache_cdex_p		0
+#define cpu_has_cache_cdex_s		0
+#define cpu_has_prefetch		1
+#define cpu_has_mcheck			0
+#define cpu_has_ejtag			0
+#define cpu_has_llsc			1
+#define cpu_has_mips16			0
+#define cpu_has_mdmx			0
+#define cpu_has_mips3d			0
+#define cpu_has_smartmips		0
+#define cpu_has_rixi			0
+#define cpu_has_xpa			0
+#define cpu_has_vtag_icache		0
+#define cpu_has_dc_aliases		0
+#define cpu_has_ic_fills_f_dc		0
+
+#define cpu_icache_snoops_remote_store	1
+
+#define cpu_has_mips32r1		0
+#define cpu_has_mips32r2		0
+#define cpu_has_mips64r1		0
+#define cpu_has_mips64r2		0
+#define cpu_has_mips32r6		0
+#define cpu_has_mips64r6		0
+
+#define cpu_has_dsp			0
+#define cpu_has_dsp2			0
+#define cpu_has_mipsmt			0
+#define cpu_has_userlocal		0
+#define cpu_has_inclusive_pcaches	1
+#define cpu_has_perf_cntr_intr_bit	0
+#define cpu_has_vz			0
+#define cpu_has_fre			0
+#define cpu_has_cdmm			0
+
+#define cpu_dcache_line_size()		32
+#define cpu_icache_line_size()		64
+#define cpu_scache_line_size()		128
+
+#endif /* __ASM_MACH_IP30_CPU_FEATURE_OVERRIDES_H */
+

linux-7.2.3/arch/mips/include/asm/mach-ip30/kernel-entry-init.h

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ASM_MACH_IP30_KERNEL_ENTRY_H
+#define __ASM_MACH_IP30_KERNEL_ENTRY_H
+
+	.macro  kernel_entry_setup
+	.endm
+
+	.macro	smp_slave_setup
+	move	gp, a0
+	.endm
+
+#endif /* __ASM_MACH_IP30_KERNEL_ENTRY_H */

linux-7.2.3/arch/mips/include/asm/mach-ip30/mangle-port.h

@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2003, 2004 Ralf Baechle
+ */
+#ifndef __ASM_MACH_IP30_MANGLE_PORT_H
+#define __ASM_MACH_IP30_MANGLE_PORT_H
+
+#define __swizzle_addr_b(port)	((port)^3)
+#define __swizzle_addr_w(port)	((port)^2)
+#define __swizzle_addr_l(port)	(port)
+#define __swizzle_addr_q(port)	(port)
+
+#define ioswabb(a, x)		(x)
+#define __mem_ioswabb(a, x)	(x)
+#define ioswabw(a, x)		(x)
+#define __mem_ioswabw(a, x)	((__force u16)cpu_to_le16(x))
+#define ioswabl(a, x)		(x)
+#define __mem_ioswabl(a, x)	((__force u32)cpu_to_le32(x))
+#define ioswabq(a, x)		(x)
+#define __mem_ioswabq(a, x)	((__force u64)cpu_to_le64(x))
+
+#endif /* __ASM_MACH_IP30_MANGLE_PORT_H */

linux-7.2.3/arch/mips/include/asm/mach-ip30/spaces.h

@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2016 Joshua Kinard <linux@kumba.dev>
+ *
+ */
+#ifndef _ASM_MACH_IP30_SPACES_H
+#define _ASM_MACH_IP30_SPACES_H
+
+/*
+ * Memory in IP30/Octane is offset 512MB in the physical address space.
+ */
+#define PHYS_OFFSET	_AC(0x20000000, UL)
+
+#ifdef CONFIG_64BIT
+#define CAC_BASE	_AC(0xA800000000000000, UL)
+#endif
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* _ASM_MACH_IP30_SPACES_H */