From 4408ce713fc684b071d8f2bf0f67c827468be2e0 Mon Sep 17 00:00:00 2001 From: nbd Date: Wed, 27 Jun 2007 22:01:16 +0000 Subject: brcm47xx: fix parts of the cache code that were not covered by the kmap_coherent patch yet. this seems to fix the crazy segfaults we were getting... git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7745 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../patches-2.6.22/160-kmap_coherent.patch | 47 ++++++++++++++++++---- 1 file changed, 39 insertions(+), 8 deletions(-) (limited to 'target/linux') diff --git a/target/linux/brcm47xx-2.6/patches-2.6.22/160-kmap_coherent.patch b/target/linux/brcm47xx-2.6/patches-2.6.22/160-kmap_coherent.patch index 67068081d..0b13f3b58 100644 --- a/target/linux/brcm47xx-2.6/patches-2.6.22/160-kmap_coherent.patch +++ b/target/linux/brcm47xx-2.6/patches-2.6.22/160-kmap_coherent.patch @@ -1,7 +1,7 @@ -Index: linux-2.6.22-rc4/arch/mips/mm/init.c +Index: linux-2.6.22-rc5/arch/mips/mm/init.c =================================================================== ---- linux-2.6.22-rc4.orig/arch/mips/mm/init.c 2007-06-10 21:32:12.000000000 +0100 -+++ linux-2.6.22-rc4/arch/mips/mm/init.c 2007-06-10 21:33:21.000000000 +0100 +--- linux-2.6.22-rc5.orig/arch/mips/mm/init.c 2007-06-27 23:40:06.406545264 +0200 ++++ linux-2.6.22-rc5/arch/mips/mm/init.c 2007-06-27 23:40:08.920163136 +0200 @@ -207,7 +207,7 @@ void *vfrom, *vto; @@ -29,10 +29,10 @@ Index: linux-2.6.22-rc4/arch/mips/mm/init.c void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); memcpy(dst, vfrom, len); -Index: linux-2.6.22-rc4/include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h +Index: linux-2.6.22-rc5/include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22-rc4/include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h 2007-06-10 21:33:21.000000000 +0100 ++++ linux-2.6.22-rc5/include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h 2007-06-27 23:40:08.921162984 +0200 @@ -0,0 +1,13 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public @@ -47,10 +47,10 @@ Index: linux-2.6.22-rc4/include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h +#define cpu_use_kmap_coherent 0 + +#endif /* __ASM_MACH_BCM947XX_CPU_FEATURE_OVERRIDES_H */ -Index: linux-2.6.22-rc4/include/asm-mips/cpu-features.h +Index: linux-2.6.22-rc5/include/asm-mips/cpu-features.h =================================================================== ---- linux-2.6.22-rc4.orig/include/asm-mips/cpu-features.h 2007-06-10 21:32:12.000000000 +0100 -+++ linux-2.6.22-rc4/include/asm-mips/cpu-features.h 2007-06-10 21:33:21.000000000 +0100 +--- linux-2.6.22-rc5.orig/include/asm-mips/cpu-features.h 2007-06-27 23:40:06.419543288 +0200 ++++ linux-2.6.22-rc5/include/asm-mips/cpu-features.h 2007-06-27 23:40:08.921162984 +0200 @@ -101,6 +101,9 @@ #ifndef cpu_has_pindexed_dcache #define cpu_has_pindexed_dcache (cpu_data[0].dcache.flags & MIPS_CACHE_PINDEX) @@ -61,3 +61,34 @@ Index: linux-2.6.22-rc4/include/asm-mips/cpu-features.h /* * I-Cache snoops remote store. This only matters on SMP. Some multiprocessors +Index: linux-2.6.22-rc5/arch/mips/mm/c-r4k.c +=================================================================== +--- linux-2.6.22-rc5.orig/arch/mips/mm/c-r4k.c 2007-06-27 23:40:45.883543848 +0200 ++++ linux-2.6.22-rc5/arch/mips/mm/c-r4k.c 2007-06-27 23:42:06.682260576 +0200 +@@ -339,7 +339,7 @@ + + static void r4k_flush_cache_all(void) + { +- if (!cpu_has_dc_aliases) ++ if (!cpu_has_dc_aliases || !cpu_use_kmap_coherent) + return; + + r4k_on_each_cpu(local_r4k_flush_cache_all, NULL, 1, 1); +@@ -380,7 +380,7 @@ + static void r4k_flush_cache_range(struct vm_area_struct *vma, + unsigned long start, unsigned long end) + { +- if (!cpu_has_dc_aliases) ++ if (!cpu_has_dc_aliases || !cpu_use_kmap_coherent) + return; + + r4k_on_each_cpu(local_r4k_flush_cache_range, vma, 1, 1); +@@ -412,7 +412,7 @@ + + static void r4k_flush_cache_mm(struct mm_struct *mm) + { +- if (!cpu_has_dc_aliases) ++ if (!cpu_has_dc_aliases || !cpu_use_kmap_coherent) + return; + + r4k_on_each_cpu(local_r4k_flush_cache_mm, mm, 1, 1); -- cgit v1.2.3