diff options
| author | 2012-08-17 08:57:56 +0200 | |
|---|---|---|
| committer | 2012-08-17 09:01:08 +0200 | |
| commit | a22ddff8bedfe33eeb1330bbb7ef1fbe007a42c4 (patch) | |
| tree | 61a2eb7fa62f5af10c2b913ca429e6b068b0eb2d /arch/mips/mm/page.c | |
| parent | drm/i915: don't grab dev->struct_mutex for userspace forcewak (diff) | |
| parent | Linux 3.6-rc2 (diff) | |
| download | linux-dev-a22ddff8bedfe33eeb1330bbb7ef1fbe007a42c4.tar.xz linux-dev-a22ddff8bedfe33eeb1330bbb7ef1fbe007a42c4.zip | |
Merge tag 'v3.6-rc2' into drm-intel-next
Backmerge Linux 3.6-rc2 to resolve a few funny conflicts before we put
even more madness on top:
- drivers/gpu/drm/i915/i915_irq.c: Just a spurious WARN removed in
-fixes, that has been changed in a variable-rename in -next, too.
- drivers/gpu/drm/i915/intel_ringbuffer.c: -next remove scratch_addr
(since all their users have been extracted in another fucntion),
-fixes added another user for a hw workaroudn.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'arch/mips/mm/page.c')
| -rw-r--r-- | arch/mips/mm/page.c | 67 |
1 files changed, 18 insertions, 49 deletions
diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c index cc0b626858b3..98f530e18216 100644 --- a/arch/mips/mm/page.c +++ b/arch/mips/mm/page.c @@ -6,6 +6,7 @@ * Copyright (C) 2003, 04, 05 Ralf Baechle (ralf@linux-mips.org) * Copyright (C) 2007 Maciej W. Rozycki * Copyright (C) 2008 Thiemo Seufer + * Copyright (C) 2012 MIPS Technologies, Inc. */ #include <linux/init.h> #include <linux/kernel.h> @@ -71,45 +72,6 @@ static struct uasm_reloc __cpuinitdata relocs[5]; #define cpu_is_r4600_v1_x() ((read_c0_prid() & 0xfffffff0) == 0x00002010) #define cpu_is_r4600_v2_x() ((read_c0_prid() & 0xfffffff0) == 0x00002020) -/* - * Maximum sizes: - * - * R4000 128 bytes S-cache: 0x058 bytes - * R4600 v1.7: 0x05c bytes - * R4600 v2.0: 0x060 bytes - * With prefetching, 16 word strides 0x120 bytes - */ - -static u32 clear_page_array[0x120 / 4]; - -#ifdef CONFIG_SIBYTE_DMA_PAGEOPS -void clear_page_cpu(void *page) __attribute__((alias("clear_page_array"))); -#else -void clear_page(void *page) __attribute__((alias("clear_page_array"))); -#endif - -EXPORT_SYMBOL(clear_page); - -/* - * Maximum sizes: - * - * R4000 128 bytes S-cache: 0x11c bytes - * R4600 v1.7: 0x080 bytes - * R4600 v2.0: 0x07c bytes - * With prefetching, 16 word strides 0x540 bytes - */ -static u32 copy_page_array[0x540 / 4]; - -#ifdef CONFIG_SIBYTE_DMA_PAGEOPS -void -copy_page_cpu(void *to, void *from) __attribute__((alias("copy_page_array"))); -#else -void copy_page(void *to, void *from) __attribute__((alias("copy_page_array"))); -#endif - -EXPORT_SYMBOL(copy_page); - - static int pref_bias_clear_store __cpuinitdata; static int pref_bias_copy_load __cpuinitdata; static int pref_bias_copy_store __cpuinitdata; @@ -282,10 +244,15 @@ static inline void __cpuinit build_clear_pref(u32 **buf, int off) } } +extern u32 __clear_page_start; +extern u32 __clear_page_end; +extern u32 __copy_page_start; +extern u32 __copy_page_end; + void __cpuinit build_clear_page(void) { int off; - u32 *buf = (u32 *)&clear_page_array; + u32 *buf = &__clear_page_start; struct uasm_label *l = labels; struct uasm_reloc *r = relocs; int i; @@ -356,17 +323,17 @@ void __cpuinit build_clear_page(void) uasm_i_jr(&buf, RA); uasm_i_nop(&buf); - BUG_ON(buf > clear_page_array + ARRAY_SIZE(clear_page_array)); + BUG_ON(buf > &__clear_page_end); uasm_resolve_relocs(relocs, labels); pr_debug("Synthesized clear page handler (%u instructions).\n", - (u32)(buf - clear_page_array)); + (u32)(buf - &__clear_page_start)); pr_debug("\t.set push\n"); pr_debug("\t.set noreorder\n"); - for (i = 0; i < (buf - clear_page_array); i++) - pr_debug("\t.word 0x%08x\n", clear_page_array[i]); + for (i = 0; i < (buf - &__clear_page_start); i++) + pr_debug("\t.word 0x%08x\n", (&__clear_page_start)[i]); pr_debug("\t.set pop\n"); } @@ -427,7 +394,7 @@ static inline void build_copy_store_pref(u32 **buf, int off) void __cpuinit build_copy_page(void) { int off; - u32 *buf = (u32 *)©_page_array; + u32 *buf = &__copy_page_start; struct uasm_label *l = labels; struct uasm_reloc *r = relocs; int i; @@ -595,21 +562,23 @@ void __cpuinit build_copy_page(void) uasm_i_jr(&buf, RA); uasm_i_nop(&buf); - BUG_ON(buf > copy_page_array + ARRAY_SIZE(copy_page_array)); + BUG_ON(buf > &__copy_page_end); uasm_resolve_relocs(relocs, labels); pr_debug("Synthesized copy page handler (%u instructions).\n", - (u32)(buf - copy_page_array)); + (u32)(buf - &__copy_page_start)); pr_debug("\t.set push\n"); pr_debug("\t.set noreorder\n"); - for (i = 0; i < (buf - copy_page_array); i++) - pr_debug("\t.word 0x%08x\n", copy_page_array[i]); + for (i = 0; i < (buf - &__copy_page_start); i++) + pr_debug("\t.word 0x%08x\n", (&__copy_page_start)[i]); pr_debug("\t.set pop\n"); } #ifdef CONFIG_SIBYTE_DMA_PAGEOPS +extern void clear_page_cpu(void *page); +extern void copy_page_cpu(void *to, void *from); /* * Pad descriptors to cacheline, since each is exclusively owned by a |
