diff options
| -rw-r--r-- | target/linux/brcm47xx-2.6/patches/160-kmap_coherent.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/target/linux/brcm47xx-2.6/patches/160-kmap_coherent.patch b/target/linux/brcm47xx-2.6/patches/160-kmap_coherent.patch new file mode 100644 index 0000000000..b8847bd028 --- /dev/null +++ b/target/linux/brcm47xx-2.6/patches/160-kmap_coherent.patch @@ -0,0 +1,48 @@ +--- ./arch/mips/mm/init.c.orig 2007-03-22 08:08:34.000000000 -0600 ++++ ./arch/mips/mm/init.c 2007-03-22 08:09:04.000000000 -0600 +@@ -207,7 +207,7 @@ + struct page *page, unsigned long vaddr, void *dst, const void *src, + unsigned long len) + { +- if (cpu_has_dc_aliases) { ++ if (cpu_has_dc_aliases && cpu_use_kmap_coherent) { + void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); + memcpy(vto, src, len); + kunmap_coherent(page); +@@ -223,7 +223,7 @@ + struct page *page, unsigned long vaddr, void *dst, const void *src, + unsigned long len) + { +- if (cpu_has_dc_aliases) { ++ if (cpu_has_dc_aliases && cpu_use_kmap_coherent) { + void *vfrom = + kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); + memcpy(dst, vfrom, len); +--- ./include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h.orig 2007-03-22 08:10:54.000000000 -0600 ++++ ./include/asm-mips/mach-bcm947xx/cpu-feature-overrides.h 2007-03-22 08:10:50.000000000 -0600 +@@ -0,0 +1,13 @@ ++/* ++ * 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. ++ * ++ * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org) ++ */ ++#ifndef __ASM_MACH_BCM947XX_CPU_FEATURE_OVERRIDES_H ++#define __ASM_MACH_BCM947XX_CPU_FEATURE_OVERRIDES_H ++ ++#define cpu_use_kmap_coherent 0 ++ ++#endif /* __ASM_MACH_BCM947XX_CPU_FEATURE_OVERRIDES_H */ +--- ./include/asm-mips/cpu-features.h.orig 2007-03-22 08:09:16.000000000 -0600 ++++ ./include/asm-mips/cpu-features.h 2007-03-22 08:09:52.000000000 -0600 +@@ -98,6 +98,9 @@ + #ifndef cpu_has_pindexed_dcache + #define cpu_has_pindexed_dcache (cpu_data[0].dcache.flags & MIPS_CACHE_PINDEX) + #endif ++#ifndef cpu_use_kmap_coherent ++#define cpu_use_kmap_coherent 1 ++#endif + + /* + * I-Cache snoops remote store. This only matters on SMP. Some multiprocessors |