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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

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7865 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2007-07-04 00:48:59 +00:00
parent 1f9285016a
commit 51aeb843d0
2 changed files with 63 additions and 63 deletions
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47
target/linux/brcm47xx-2.6/patches-2.6.22/160-kmap_coherent.patch
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@@ -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);