Resguardo inicial

linux-7.2.3/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h

@@ -0,0 +1,51 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005 Ilya A. Volynets-Evenbakh
+ * Copyright (C) 2005, 07 Ralf Baechle (ralf@linux-mips.org)
+ */
+#ifndef __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H
+
+
+/*
+ * R5000 has an interesting "restriction":  ll(d)/sc(d)
+ * instructions to XKPHYS region simply do uncached bus
+ * requests. This breaks all the atomic bitops functions.
+ * so, for 64bit IP32 kernel we just don't use ll/sc.
+ * This does not affect luserland.
+ */
+#if (defined(CONFIG_CPU_R5000) || defined(CONFIG_CPU_NEVADA)) && defined(CONFIG_64BIT)
+#define cpu_has_llsc		0
+#else
+#define cpu_has_llsc		1
+#endif
+
+/* Settings which are common for all ip32 CPUs */
+#define cpu_has_tlb		1
+#define cpu_has_4kex		1
+#define cpu_has_32fpr		1
+#define cpu_has_counter		1
+#define cpu_has_mips16		0
+#define cpu_has_mips16e2	0
+#define cpu_has_vce		0
+#define cpu_has_cache_cdex_s	0
+#define cpu_has_mcheck		0
+#define cpu_has_ejtag		0
+#define cpu_has_vtag_icache	0
+#define cpu_has_ic_fills_f_dc	0
+#define cpu_has_dsp		0
+#define cpu_has_dsp2		0
+#define cpu_has_4k_cache	1
+#define cpu_has_mipsmt		0
+#define cpu_has_userlocal	0
+
+
+#define cpu_has_mips32r1	0
+#define cpu_has_mips32r2	0
+#define cpu_has_mips64r1	0
+#define cpu_has_mips64r2	0
+
+#endif /* __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H */

linux-7.2.3/arch/mips/include/asm/mach-ip32/kmalloc.h

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_MACH_IP32_KMALLOC_H
+#define __ASM_MACH_IP32_KMALLOC_H
+
+
+#if defined(CONFIG_CPU_R5000) || defined(CONFIG_CPU_RM7000)
+#define ARCH_DMA_MINALIGN	32
+#else
+#define ARCH_DMA_MINALIGN	128
+#endif
+
+#endif /* __ASM_MACH_IP32_KMALLOC_H */

linux-7.2.3/arch/mips/include/asm/mach-ip32/mangle-port.h

@@ -0,0 +1,26 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Ladislav Michl
+ * Copyright (C) 2004 Ralf Baechle
+ */
+#ifndef __ASM_MACH_IP32_MANGLE_PORT_H
+#define __ASM_MACH_IP32_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_IP32_MANGLE_PORT_H */