diff options
| -rw-r--r-- | target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch | 327 |
1 files changed, 97 insertions, 230 deletions
diff --git a/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch b/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch index da40a4796..e971e7fdf 100644 --- a/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch +++ b/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch @@ -1,6 +1,6 @@ diff -urN linux.old/arch/mips/kernel/entry.S linux.dev/arch/mips/kernel/entry.S --- linux.old/arch/mips/kernel/entry.S 2005-07-05 16:46:49.000000000 +0200 -+++ linux.dev/arch/mips/kernel/entry.S 2005-07-05 16:42:36.000000000 +0200 ++++ linux.dev/arch/mips/kernel/entry.S 2005-07-06 11:23:55.000000000 +0200 @@ -100,6 +100,10 @@ * and R4400 SC and MC versions. */ @@ -14,7 +14,7 @@ diff -urN linux.old/arch/mips/kernel/entry.S linux.dev/arch/mips/kernel/entry.S #endif diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c --- linux.old/arch/mips/mm/c-r4k.c 2005-07-05 16:46:49.000000000 +0200 -+++ linux.dev/arch/mips/mm/c-r4k.c 2005-07-05 16:48:47.000000000 +0200 ++++ linux.dev/arch/mips/mm/c-r4k.c 2005-07-06 11:23:55.000000000 +0200 @@ -14,6 +14,12 @@ #include <linux/mm.h> #include <linux/bitops.h> @@ -28,15 +28,16 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c #include <asm/bcache.h> #include <asm/bootinfo.h> #include <asm/cacheops.h> -@@ -40,6 +46,7 @@ +@@ -40,6 +46,8 @@ .bc_inv = (void *)no_sc_noop }; -+static int bcm4710 = 0; ++int bcm4710 = 0; ++EXPORT_SYMBOL(bcm4710); struct bcache_ops *bcops = &no_sc_ops; #define cpu_is_r4600_v1_x() ((read_c0_prid() & 0xfffffff0) == 0x2010) -@@ -64,8 +71,10 @@ +@@ -64,8 +72,10 @@ static inline void r4k_blast_dcache_page_setup(void) { unsigned long dc_lsize = current_cpu_data.dcache.linesz; @@ -49,7 +50,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c r4k_blast_dcache_page = blast_dcache16_page; else if (dc_lsize == 32) r4k_blast_dcache_page = r4k_blast_dcache_page_dc32; -@@ -77,7 +86,9 @@ +@@ -77,7 +87,9 @@ { unsigned long dc_lsize = current_cpu_data.dcache.linesz; @@ -60,7 +61,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c r4k_blast_dcache_page_indexed = blast_dcache16_page_indexed; else if (dc_lsize == 32) r4k_blast_dcache_page_indexed = blast_dcache32_page_indexed; -@@ -89,7 +100,9 @@ +@@ -89,7 +101,9 @@ { unsigned long dc_lsize = current_cpu_data.dcache.linesz; @@ -71,7 +72,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c r4k_blast_dcache = blast_dcache16; else if (dc_lsize == 32) r4k_blast_dcache = blast_dcache32; -@@ -266,6 +279,7 @@ +@@ -266,6 +280,7 @@ r4k_blast_dcache(); r4k_blast_icache(); @@ -79,7 +80,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c switch (current_cpu_data.cputype) { case CPU_R4000SC: case CPU_R4000MC: -@@ -304,10 +318,10 @@ +@@ -304,10 +319,10 @@ * Kludge alert. For obscure reasons R4000SC and R4400SC go nuts if we * only flush the primary caches but R10000 and R12000 behave sane ... */ @@ -92,7 +93,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c r4k_blast_scache(); } -@@ -383,12 +397,15 @@ +@@ -383,12 +398,15 @@ unsigned long ic_lsize = current_cpu_data.icache.linesz; unsigned long addr, aend; @@ -110,7 +111,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c while (1) { /* Hit_Writeback_Inv_D */ -@@ -403,8 +420,6 @@ +@@ -403,8 +421,6 @@ if (end - start > icache_size) r4k_blast_icache(); else { @@ -119,7 +120,17 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c while (1) { /* Hit_Invalidate_I */ protected_flush_icache_line(addr); -@@ -443,7 +458,8 @@ +@@ -413,6 +429,9 @@ + addr += ic_lsize; + } + } ++ ++ if (bcm4710) ++ flush_cache_all(); + } + + /* +@@ -443,7 +462,8 @@ if (cpu_has_subset_pcaches) { unsigned long addr = (unsigned long) page_address(page); @@ -129,7 +140,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c ClearPageDcacheDirty(page); return; -@@ -451,6 +467,7 @@ +@@ -451,6 +471,7 @@ if (!cpu_has_ic_fills_f_dc) { unsigned long addr = (unsigned long) page_address(page); @@ -137,7 +148,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c r4k_blast_dcache_page(addr); ClearPageDcacheDirty(page); } -@@ -477,7 +494,7 @@ +@@ -477,7 +498,7 @@ /* Catch bad driver code */ BUG_ON(size == 0); @@ -146,7 +157,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c unsigned long sc_lsize = current_cpu_data.scache.linesz; if (size >= scache_size) { -@@ -509,6 +526,8 @@ +@@ -509,6 +530,8 @@ R4600_HIT_CACHEOP_WAR_IMPL; a = addr & ~(dc_lsize - 1); end = (addr + size - 1) & ~(dc_lsize - 1); @@ -155,7 +166,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c while (1) { flush_dcache_line(a); /* Hit_Writeback_Inv_D */ if (a == end) -@@ -527,7 +546,7 @@ +@@ -527,7 +550,7 @@ /* Catch bad driver code */ BUG_ON(size == 0); @@ -164,7 +175,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c unsigned long sc_lsize = current_cpu_data.scache.linesz; if (size >= scache_size) { -@@ -554,6 +573,8 @@ +@@ -554,6 +577,8 @@ R4600_HIT_CACHEOP_WAR_IMPL; a = addr & ~(dc_lsize - 1); end = (addr + size - 1) & ~(dc_lsize - 1); @@ -173,7 +184,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c while (1) { flush_dcache_line(a); /* Hit_Writeback_Inv_D */ if (a == end) -@@ -577,6 +598,8 @@ +@@ -577,6 +602,8 @@ unsigned long dc_lsize = current_cpu_data.dcache.linesz; R4600_HIT_CACHEOP_WAR_IMPL; @@ -182,7 +193,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c protected_writeback_dcache_line(addr & ~(dc_lsize - 1)); protected_flush_icache_line(addr & ~(ic_lsize - 1)); if (MIPS4K_ICACHE_REFILL_WAR) { -@@ -986,10 +1009,12 @@ +@@ -986,10 +1013,12 @@ case CPU_R4000MC: case CPU_R4400SC: case CPU_R4400MC: @@ -199,7 +210,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c break; case CPU_R10000: -@@ -1041,6 +1066,19 @@ +@@ -1041,6 +1070,19 @@ static inline void coherency_setup(void) { change_c0_config(CONF_CM_CMASK, CONF_CM_DEFAULT); @@ -219,50 +230,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c /* * c0_status.cu=0 specifies that updates by the sc instruction use -@@ -1062,6 +1100,42 @@ - - } - -+#ifdef CONFIG_BCM4704 -+static void __init mips32_icache_fill(unsigned long addr, uint nbytes) -+{ -+ unsigned long ic_lsize = current_cpu_data.icache.linesz; -+ int i; -+ for (i = 0; i < nbytes; i += ic_lsize) -+ fill_icache_line((addr + i)); -+} -+ -+/* -+ * This must be run from the cache on 4704A0 -+ * so there are no mips core BIU ops in progress -+ * when the PFC is enabled. -+ */ -+#define PFC_CR0 0xff400000 /* control reg 0 */ -+#define PFC_CR1 0xff400004 /* control reg 1 */ -+static void __init enable_pfc(u32 mode) -+{ -+ /* write range */ -+ *(volatile u32 *)PFC_CR1 = 0xffff0000; -+ -+ /* enable */ -+ *(volatile u32 *)PFC_CR0 = mode; -+} -+ -+void check_enable_mips_pfc(int val) -+{ -+ /* enable prefetch cache */ -+ if (BCM330X(current_cpu_data.processor_id) -+ && (read_c0_diag() & (1 << 29))) { -+ mips32_icache_fill((unsigned long) &enable_pfc, 64); -+ enable_pfc(val); -+ } -+} -+#endif -+ - void __init ld_mmu_r4xx0(void) - { - extern void build_clear_page(void); -@@ -1073,6 +1147,12 @@ +@@ -1073,6 +1115,12 @@ memcpy((void *)(KSEG0 + 0x100), &except_vec2_generic, 0x80); memcpy((void *)(KSEG1 + 0x100), &except_vec2_generic, 0x80); @@ -275,118 +243,9 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c probe_pcache(); setup_scache(); -@@ -1117,47 +1197,9 @@ - - build_clear_page(); - build_copy_page(); --} -- --#ifdef CONFIG_BCM4704 --static void __init mips32_icache_fill(unsigned long addr, uint nbytes) --{ -- unsigned long ic_lsize = current_cpu_data.icache.linesz; -- int i; -- for (i = 0; i < nbytes; i += ic_lsize) -- fill_icache_line((addr + i)); --} -- --/* -- * This must be run from the cache on 4704A0 -- * so there are no mips core BIU ops in progress -- * when the PFC is enabled. -- */ --#define PFC_CR0 0xff400000 /* control reg 0 */ --#define PFC_CR1 0xff400004 /* control reg 1 */ --static void __init enable_pfc(u32 mode) --{ -- /* write range */ -- *(volatile u32 *)PFC_CR1 = 0xffff0000; -- -- /* enable */ -- *(volatile u32 *)PFC_CR0 = mode; --} --#endif -- -- --void check_enable_mips_pfc(int val) --{ -- -+ - #ifdef CONFIG_BCM4704 -- struct cpuinfo_mips *c = ¤t_cpu_data; -- -- /* enable prefetch cache */ -- if (((c->processor_id & (PRID_COMP_MASK | PRID_IMP_MASK)) == PRID_IMP_BCM3302) -- && (read_c0_diag() & (1 << 29))) { -- mips32_icache_fill((unsigned long) &enable_pfc, 64); -- enable_pfc(val); -- } -+ check_enable_mips_pfc(0x15); - #endif - } - -diff -urN linux.old/arch/mips/mm/tlb-r4k.c linux.dev/arch/mips/mm/tlb-r4k.c ---- linux.old/arch/mips/mm/tlb-r4k.c 2005-07-05 16:46:49.000000000 +0200 -+++ linux.dev/arch/mips/mm/tlb-r4k.c 2005-07-05 16:42:36.000000000 +0200 -@@ -38,6 +38,7 @@ - old_ctx = read_c0_entryhi(); - write_c0_entrylo0(0); - write_c0_entrylo1(0); -+ BARRIER; - - entry = read_c0_wired(); - -@@ -47,6 +48,7 @@ - write_c0_index(entry); - mtc0_tlbw_hazard(); - tlb_write_indexed(); -+ BARRIER; - entry++; - } - tlbw_use_hazard(); -@@ -98,6 +100,7 @@ - write_c0_entryhi(KSEG0 + idx*0x2000); - mtc0_tlbw_hazard(); - tlb_write_indexed(); -+ BARRIER; - } - tlbw_use_hazard(); - write_c0_entryhi(oldpid); -@@ -136,6 +139,7 @@ - tlbw_use_hazard(); - - finish: -+ BARRIER; - write_c0_entryhi(oldpid); - local_irq_restore(flags); - } -@@ -204,6 +208,7 @@ - pmdp = pmd_offset(pgdp, address); - idx = read_c0_index(); - ptep = pte_offset(pmdp, address); -+ BARRIER; - #if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32) - write_c0_entrylo0(ptep->pte_high); - ptep++; -@@ -220,6 +225,7 @@ - tlb_write_indexed(); - tlbw_use_hazard(); - write_c0_entryhi(pid); -+ BARRIER; - local_irq_restore(flags); - } - -@@ -317,6 +323,7 @@ - } - - write_c0_index(temp_tlb_entry); -+ BARRIER; - write_c0_pagemask(pagemask); - write_c0_entryhi(entryhi); - write_c0_entrylo0(entrylo0); diff -urN linux.old/arch/mips/mm/tlbex-mips32.S linux.dev/arch/mips/mm/tlbex-mips32.S --- linux.old/arch/mips/mm/tlbex-mips32.S 2005-07-05 16:46:49.000000000 +0200 -+++ linux.dev/arch/mips/mm/tlbex-mips32.S 2005-07-05 16:42:36.000000000 +0200 ++++ linux.dev/arch/mips/mm/tlbex-mips32.S 2005-07-06 11:23:56.000000000 +0200 @@ -90,6 +90,9 @@ .set noat LEAF(except_vec0_r4000) @@ -399,7 +258,7 @@ diff -urN linux.old/arch/mips/mm/tlbex-mips32.S linux.dev/arch/mips/mm/tlbex-mip la k0, pgd_current diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kcache.h --- linux.old/include/asm-mips/r4kcache.h 2005-07-05 16:46:49.000000000 +0200 -+++ linux.dev/include/asm-mips/r4kcache.h 2005-07-05 16:42:36.000000000 +0200 ++++ linux.dev/include/asm-mips/r4kcache.h 2005-07-06 12:52:57.000000000 +0200 @@ -15,6 +15,18 @@ #include <asm/asm.h> #include <asm/cacheops.h> @@ -419,15 +278,35 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca #define cache_op(op,addr) \ __asm__ __volatile__( \ " .set noreorder \n" \ -@@ -32,6 +44,7 @@ +@@ -27,12 +39,25 @@ + + static inline void flush_icache_line_indexed(unsigned long addr) + { +- cache_op(Index_Invalidate_I, addr); ++ unsigned int way; ++ unsigned long ws_inc = 1UL << current_cpu_data.dcache.waybit; ++ ++ for (way = 0; way < current_cpu_data.dcache.ways; way++) { ++ cache_op(Index_Invalidate_I, addr); ++ addr += ws_inc; ++ } + } static inline void flush_dcache_line_indexed(unsigned long addr) { -+ BCM4710_DUMMY_RREG(); - cache_op(Index_Writeback_Inv_D, addr); +- cache_op(Index_Writeback_Inv_D, addr); ++ unsigned int way; ++ unsigned long ws_inc = 1UL << current_cpu_data.dcache.waybit; ++ ++ for (way = 0; way < current_cpu_data.dcache.ways; way++) { ++ BCM4710_DUMMY_RREG(); ++ cache_op(Index_Writeback_Inv_D, addr); ++ addr += ws_inc; ++ } } -@@ -47,6 +60,7 @@ + static inline void flush_scache_line_indexed(unsigned long addr) +@@ -47,6 +72,7 @@ static inline void flush_dcache_line(unsigned long addr) { @@ -435,7 +314,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca cache_op(Hit_Writeback_Inv_D, addr); } -@@ -91,6 +105,7 @@ +@@ -91,6 +117,7 @@ */ static inline void protected_writeback_dcache_line(unsigned long addr) { @@ -443,7 +322,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca __asm__ __volatile__( ".set noreorder\n\t" ".set mips3\n" -@@ -138,6 +153,59 @@ +@@ -138,6 +165,62 @@ : "r" (base), \ "i" (op)); @@ -462,7 +341,8 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca +static inline void blast_dcache(void) +{ + unsigned long start = KSEG0; -+ unsigned long end = start + current_cpu_data.dcache.waysize; ++ unsigned long dcache_size = current_cpu_data.dcache.waysize * current_cpu_data.dcache.ways; ++ unsigned long end = (start + dcache_size); + + while(start < end) { + BCM4710_DUMMY_RREG(); @@ -493,17 +373,19 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca + current_cpu_data.dcache.waybit; + unsigned long ws, addr; + -+ for (ws = 0; ws < ws_end; ws += ws_inc) -+ for (addr = start; addr < end; addr += start += current_cpu_data.dcache.linesz) { ++ for (ws = 0; ws < ws_end; ws += ws_inc) { ++ start = page + ws; ++ for (addr = start; addr < end; addr += current_cpu_data.dcache.linesz) { + BCM4710_DUMMY_RREG(); + cache_unroll(addr,Index_Writeback_Inv_D); + } ++ } +} + static inline void blast_dcache16(void) { unsigned long start = KSEG0; -@@ -148,8 +216,9 @@ +@@ -148,8 +231,9 @@ unsigned long ws, addr; for (ws = 0; ws < ws_end; ws += ws_inc) @@ -514,7 +396,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca } static inline void blast_dcache16_page(unsigned long page) -@@ -173,8 +242,9 @@ +@@ -173,8 +257,9 @@ unsigned long ws, addr; for (ws = 0; ws < ws_end; ws += ws_inc) @@ -525,7 +407,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca } static inline void blast_icache16(void) -@@ -196,6 +266,7 @@ +@@ -196,6 +281,7 @@ unsigned long start = page; unsigned long end = start + PAGE_SIZE; @@ -533,7 +415,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca do { cache16_unroll32(start,Hit_Invalidate_I); start += 0x200; -@@ -281,6 +352,7 @@ +@@ -281,6 +367,7 @@ : "r" (base), \ "i" (op)); @@ -541,7 +423,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca static inline void blast_dcache32(void) { unsigned long start = KSEG0; -@@ -291,8 +363,9 @@ +@@ -291,8 +378,9 @@ unsigned long ws, addr; for (ws = 0; ws < ws_end; ws += ws_inc) @@ -552,7 +434,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca } static inline void blast_dcache32_page(unsigned long page) -@@ -316,8 +389,9 @@ +@@ -316,8 +404,9 @@ unsigned long ws, addr; for (ws = 0; ws < ws_end; ws += ws_inc) @@ -563,7 +445,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca } static inline void blast_icache32(void) -@@ -339,6 +413,7 @@ +@@ -339,6 +428,7 @@ unsigned long start = page; unsigned long end = start + PAGE_SIZE; @@ -571,7 +453,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca do { cache32_unroll32(start,Hit_Invalidate_I); start += 0x400; -@@ -443,6 +518,7 @@ +@@ -443,6 +533,7 @@ unsigned long start = page; unsigned long end = start + PAGE_SIZE; @@ -581,51 +463,36 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca start += 0x800; diff -urN linux.old/include/asm-mips/stackframe.h linux.dev/include/asm-mips/stackframe.h --- linux.old/include/asm-mips/stackframe.h 2005-07-05 16:46:49.000000000 +0200 -+++ linux.dev/include/asm-mips/stackframe.h 2005-07-05 16:42:36.000000000 +0200 -@@ -172,6 +172,46 @@ - rfe; \ - .set pop ++++ linux.dev/include/asm-mips/stackframe.h 2005-07-06 11:23:56.000000000 +0200 +@@ -209,6 +209,20 @@ -+#elif defined(CONFIG_BCM4710) || defined(CONFIG_BCM4704) -+ -+#define RESTORE_SOME \ -+ .set push; \ -+ .set reorder; \ -+ mfc0 t0, CP0_STATUS; \ -+ .set pop; \ -+ ori t0, 0x1f; \ -+ xori t0, 0x1f; \ -+ mtc0 t0, CP0_STATUS; \ -+ li v1, 0xff00; \ -+ and t0, v1; \ -+ lw v0, PT_STATUS(sp); \ -+ nor v1, $0, v1; \ -+ and v0, v1; \ -+ or v0, t0; \ -+ ori v1, v0, ST0_IE; \ -+ xori v1, v1, ST0_IE; \ -+ mtc0 v1, CP0_STATUS; \ -+ mtc0 v0, CP0_STATUS; \ -+ lw v1, PT_EPC(sp); \ -+ mtc0 v1, CP0_EPC; \ -+ lw $31, PT_R31(sp); \ -+ lw $28, PT_R28(sp); \ -+ lw $25, PT_R25(sp); \ -+ lw $7, PT_R7(sp); \ -+ lw $6, PT_R6(sp); \ -+ lw $5, PT_R5(sp); \ -+ lw $4, PT_R4(sp); \ -+ lw $3, PT_R3(sp); \ -+ lw $2, PT_R2(sp) + #endif + ++#if defined(CONFIG_BCM4710) || defined(CONFIG_BCM4704) + ++#undef RESTORE_SP_AND_RET +#define RESTORE_SP_AND_RET \ + lw sp, PT_R29(sp); \ ++ .set mips3; \ + nop; \ + nop; \ -+ .set mips3; \ + eret; \ + .set mips0 + - #else ++#endif ++ ++ + #define RESTORE_SP \ + lw sp, PT_R29(sp); \ + +diff -urN linux.old/mm/memory.c linux.dev/mm/memory.c +--- linux.old/mm/memory.c 2005-04-04 03:42:20.000000000 +0200 ++++ linux.dev/mm/memory.c 2005-07-06 11:23:56.000000000 +0200 +@@ -925,6 +925,7 @@ + flush_page_to_ram(new_page); + flush_cache_page(vma, address); + establish_pte(vma, address, page_table, pte_mkwrite(pte_mkdirty(mk_pte(new_page, vma->vm_page_prot)))); ++ flush_icache_page(vma, new_page); + } - #define RESTORE_SOME \ + /* |