From 51aeb843d06b25fb8a67880b99d56b93df3e5ca1 Mon Sep 17 00:00:00 2001 From: nbd Date: Wed, 4 Jul 2007 00:48:59 +0000 Subject: more fixes for the crazy cpu cache issues on brcm47xx-2.6 (mainly affects 4704) - turns out some of the previous fixes were incorrect and a coherency setup functions was missing git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7865 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../patches-2.6.22/160-kmap_coherent.patch | 47 ++++------------------ 1 file changed, 8 insertions(+), 39 deletions(-) (limited to 'target/linux/brcm47xx-2.6/patches-2.6.22/160-kmap_coherent.patch') 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 0b13f3b58..12676025b 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-rc5/arch/mips/mm/init.c +Index: linux-2.6.22-rc6/arch/mips/mm/init.c =================================================================== ---- 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 +--- linux-2.6.22-rc6.orig/arch/mips/mm/init.c 2007-07-04 02:17:11.423962000 +0200 ++++ linux-2.6.22-rc6/arch/mips/mm/init.c 2007-07-04 02:17:31.269202250 +0200 @@ -207,7 +207,7 @@ void *vfrom, *vto; @@ -29,10 +29,10 @@ Index: linux-2.6.22-rc5/arch/mips/mm/init.c void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); memcpy(dst, vfrom, len); -Index: linux-2.6.22-rc5/include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h +Index: linux-2.6.22-rc6/include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22-rc5/include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h 2007-06-27 23:40:08.921162984 +0200 ++++ linux-2.6.22-rc6/include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h 2007-07-04 02:17:31.273202500 +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-rc5/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-rc5/include/asm-mips/cpu-features.h +Index: linux-2.6.22-rc6/include/asm-mips/cpu-features.h =================================================================== ---- 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 +--- linux-2.6.22-rc6.orig/include/asm-mips/cpu-features.h 2007-07-04 02:17:11.455964000 +0200 ++++ linux-2.6.22-rc6/include/asm-mips/cpu-features.h 2007-07-04 02:17:31.305204500 +0200 @@ -101,6 +101,9 @@ #ifndef cpu_has_pindexed_dcache #define cpu_has_pindexed_dcache (cpu_data[0].dcache.flags & MIPS_CACHE_PINDEX) @@ -61,34 +61,3 @@ Index: linux-2.6.22-rc5/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