diff options
Diffstat (limited to 'target/linux/patches/3.4.109/mips-error.patch')
-rw-r--r-- | target/linux/patches/3.4.109/mips-error.patch | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/target/linux/patches/3.4.109/mips-error.patch b/target/linux/patches/3.4.109/mips-error.patch deleted file mode 100644 index 800abc80d..000000000 --- a/target/linux/patches/3.4.109/mips-error.patch +++ /dev/null @@ -1,254 +0,0 @@ -From c022630633624a75b3b58f43dd3c6cc896a56cff Mon Sep 17 00:00:00 2001 -From: Steven J. Hill <sjhill@mips.com> -Date: Fri, 06 Jul 2012 19:56:01 +0000 -Subject: MIPS: Refactor 'clear_page' and 'copy_page' functions. - -Remove usage of the '__attribute__((alias("...")))' hack that aliased -to integer arrays containing micro-assembled instructions. This hack -breaks when building a microMIPS kernel. It also makes the code much -easier to understand. - -[ralf@linux-mips.org: Added back export of the clear_page and copy_page -symbols so certain modules will work again. Also fixed build with -CONFIG_SIBYTE_DMA_PAGEOPS enabled.] - -Signed-off-by: Steven J. Hill <sjhill@mips.com> -Cc: linux-mips@linux-mips.org -Patchwork: https://patchwork.linux-mips.org/patch/3866/ -Acked-by: David Daney <david.daney@cavium.com> -Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---- -diff --git a/arch/mips/kernel/mips_ksyms.c b/arch/mips/kernel/mips_ksyms.c -index 57ba13e..3fc1691 100644 ---- a/arch/mips/kernel/mips_ksyms.c -+++ b/arch/mips/kernel/mips_ksyms.c -@@ -5,7 +5,7 @@ - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * -- * Copyright (C) 1996, 97, 98, 99, 2000, 01, 03, 04, 05 by Ralf Baechle -+ * Copyright (C) 1996, 97, 98, 99, 2000, 01, 03, 04, 05, 12 by Ralf Baechle - * Copyright (C) 1999, 2000, 01 Silicon Graphics, Inc. - */ - #include <linux/interrupt.h> -@@ -35,6 +35,12 @@ EXPORT_SYMBOL(memmove); - EXPORT_SYMBOL(kernel_thread); - - /* -+ * Functions that operate on entire pages. Mostly used by memory management. -+ */ -+EXPORT_SYMBOL(clear_page); -+EXPORT_SYMBOL(copy_page); -+ -+/* - * Userspace access stuff. - */ - EXPORT_SYMBOL(__copy_user); -diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile -index 4aa2028..fd6203f 100644 ---- a/arch/mips/mm/Makefile -+++ b/arch/mips/mm/Makefile -@@ -3,8 +3,8 @@ - # - - obj-y += cache.o dma-default.o extable.o fault.o \ -- gup.o init.o mmap.o page.o tlbex.o \ -- tlbex-fault.o uasm.o -+ gup.o init.o mmap.o page.o page-funcs.o \ -+ tlbex.o tlbex-fault.o uasm.o - - obj-$(CONFIG_32BIT) += ioremap.o pgtable-32.o - obj-$(CONFIG_64BIT) += pgtable-64.o -diff --git a/arch/mips/mm/page-funcs.S b/arch/mips/mm/page-funcs.S -new file mode 100644 -index 0000000..48a6b38 ---- /dev/null -+++ b/arch/mips/mm/page-funcs.S -@@ -0,0 +1,50 @@ -+/* -+ * 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. -+ * -+ * Micro-assembler generated clear_page/copy_page functions. -+ * -+ * Copyright (C) 2012 MIPS Technologies, Inc. -+ * Copyright (C) 2012 Ralf Baechle <ralf@linux-mips.org> -+ */ -+#include <asm/asm.h> -+#include <asm/regdef.h> -+ -+#ifdef CONFIG_SIBYTE_DMA_PAGEOPS -+#define cpu_clear_page_function_name clear_page_cpu -+#define cpu_copy_page_function_name copy_page_cpu -+#else -+#define cpu_clear_page_function_name clear_page -+#define cpu_copy_page_function_name copy_page -+#endif -+ -+/* -+ * Maximum sizes: -+ * -+ * R4000 128 bytes S-cache: 0x058 bytes -+ * R4600 v1.7: 0x05c bytes -+ * R4600 v2.0: 0x060 bytes -+ * With prefetching, 16 word strides 0x120 bytes -+ */ -+EXPORT(__clear_page_start) -+LEAF(cpu_clear_page_function_name) -+1: j 1b /* Dummy, will be replaced. */ -+ .space 288 -+END(cpu_clear_page_function_name) -+EXPORT(__clear_page_end) -+ -+/* -+ * Maximum sizes: -+ * -+ * R4000 128 bytes S-cache: 0x11c bytes -+ * R4600 v1.7: 0x080 bytes -+ * R4600 v2.0: 0x07c bytes -+ * With prefetching, 16 word strides 0x540 bytes -+ */ -+EXPORT(__copy_page_start) -+LEAF(cpu_copy_page_function_name) -+1: j 1b /* Dummy, will be replaced. */ -+ .space 1344 -+END(cpu_copy_page_function_name) -+EXPORT(__copy_page_end) -diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c -index cc0b626..98f530e 100644 ---- a/arch/mips/mm/page.c -+++ b/arch/mips/mm/page.c -@@ -6,6 +6,7 @@ - * Copyright (C) 2003, 04, 05 Ralf Baechle (ralf@linux-mips.org) - * Copyright (C) 2007 Maciej W. Rozycki - * Copyright (C) 2008 Thiemo Seufer -+ * Copyright (C) 2012 MIPS Technologies, Inc. - */ - #include <linux/init.h> - #include <linux/kernel.h> -@@ -71,45 +72,6 @@ static struct uasm_reloc __cpuinitdata relocs[5]; - #define cpu_is_r4600_v1_x() ((read_c0_prid() & 0xfffffff0) == 0x00002010) - #define cpu_is_r4600_v2_x() ((read_c0_prid() & 0xfffffff0) == 0x00002020) - --/* -- * Maximum sizes: -- * -- * R4000 128 bytes S-cache: 0x058 bytes -- * R4600 v1.7: 0x05c bytes -- * R4600 v2.0: 0x060 bytes -- * With prefetching, 16 word strides 0x120 bytes -- */ -- --static u32 clear_page_array[0x120 / 4]; -- --#ifdef CONFIG_SIBYTE_DMA_PAGEOPS --void clear_page_cpu(void *page) __attribute__((alias("clear_page_array"))); --#else --void clear_page(void *page) __attribute__((alias("clear_page_array"))); --#endif -- --EXPORT_SYMBOL(clear_page); -- --/* -- * Maximum sizes: -- * -- * R4000 128 bytes S-cache: 0x11c bytes -- * R4600 v1.7: 0x080 bytes -- * R4600 v2.0: 0x07c bytes -- * With prefetching, 16 word strides 0x540 bytes -- */ --static u32 copy_page_array[0x540 / 4]; -- --#ifdef CONFIG_SIBYTE_DMA_PAGEOPS --void --copy_page_cpu(void *to, void *from) __attribute__((alias("copy_page_array"))); --#else --void copy_page(void *to, void *from) __attribute__((alias("copy_page_array"))); --#endif -- --EXPORT_SYMBOL(copy_page); -- -- - static int pref_bias_clear_store __cpuinitdata; - static int pref_bias_copy_load __cpuinitdata; - static int pref_bias_copy_store __cpuinitdata; -@@ -282,10 +244,15 @@ static inline void __cpuinit build_clear_pref(u32 **buf, int off) - } - } - -+extern u32 __clear_page_start; -+extern u32 __clear_page_end; -+extern u32 __copy_page_start; -+extern u32 __copy_page_end; -+ - void __cpuinit build_clear_page(void) - { - int off; -- u32 *buf = (u32 *)&clear_page_array; -+ u32 *buf = &__clear_page_start; - struct uasm_label *l = labels; - struct uasm_reloc *r = relocs; - int i; -@@ -356,17 +323,17 @@ void __cpuinit build_clear_page(void) - uasm_i_jr(&buf, RA); - uasm_i_nop(&buf); - -- BUG_ON(buf > clear_page_array + ARRAY_SIZE(clear_page_array)); -+ BUG_ON(buf > &__clear_page_end); - - uasm_resolve_relocs(relocs, labels); - - pr_debug("Synthesized clear page handler (%u instructions).\n", -- (u32)(buf - clear_page_array)); -+ (u32)(buf - &__clear_page_start)); - - pr_debug("\t.set push\n"); - pr_debug("\t.set noreorder\n"); -- for (i = 0; i < (buf - clear_page_array); i++) -- pr_debug("\t.word 0x%08x\n", clear_page_array[i]); -+ for (i = 0; i < (buf - &__clear_page_start); i++) -+ pr_debug("\t.word 0x%08x\n", (&__clear_page_start)[i]); - pr_debug("\t.set pop\n"); - } - -@@ -427,7 +394,7 @@ static inline void build_copy_store_pref(u32 **buf, int off) - void __cpuinit build_copy_page(void) - { - int off; -- u32 *buf = (u32 *)©_page_array; -+ u32 *buf = &__copy_page_start; - struct uasm_label *l = labels; - struct uasm_reloc *r = relocs; - int i; -@@ -595,21 +562,23 @@ void __cpuinit build_copy_page(void) - uasm_i_jr(&buf, RA); - uasm_i_nop(&buf); - -- BUG_ON(buf > copy_page_array + ARRAY_SIZE(copy_page_array)); -+ BUG_ON(buf > &__copy_page_end); - - uasm_resolve_relocs(relocs, labels); - - pr_debug("Synthesized copy page handler (%u instructions).\n", -- (u32)(buf - copy_page_array)); -+ (u32)(buf - &__copy_page_start)); - - pr_debug("\t.set push\n"); - pr_debug("\t.set noreorder\n"); -- for (i = 0; i < (buf - copy_page_array); i++) -- pr_debug("\t.word 0x%08x\n", copy_page_array[i]); -+ for (i = 0; i < (buf - &__copy_page_start); i++) -+ pr_debug("\t.word 0x%08x\n", (&__copy_page_start)[i]); - pr_debug("\t.set pop\n"); - } - - #ifdef CONFIG_SIBYTE_DMA_PAGEOPS -+extern void clear_page_cpu(void *page); -+extern void copy_page_cpu(void *to, void *from); - - /* - * Pad descriptors to cacheline, since each is exclusively owned by a --- -cgit v0.9.2 - |