diff --git a/arch/mips/include/asm/r4kcache.h b/arch/mips/include/asm/r4kcache.h index cac279c65601..69c2ada7d4aa 100644 --- a/arch/mips/include/asm/r4kcache.h +++ b/arch/mips/include/asm/r4kcache.h @@ -17,6 +17,7 @@ #include #include #include +#include /* for segment_eq() */ /* * This macro return a properly sign-extended address suitable as base address @@ -374,6 +375,91 @@ static inline void invalidate_tcache_page(unsigned long addr) : "r" (base), \ "i" (op)); +/* + * Perform the cache operation specified by op using a user mode virtual + * address while in kernel mode. + */ +#define cache16_unroll32_user(base,op) \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noreorder \n" \ + " .set mips0 \n" \ + " .set eva \n" \ + " cachee %1, 0x000(%0); cachee %1, 0x010(%0) \n" \ + " cachee %1, 0x020(%0); cachee %1, 0x030(%0) \n" \ + " cachee %1, 0x040(%0); cachee %1, 0x050(%0) \n" \ + " cachee %1, 0x060(%0); cachee %1, 0x070(%0) \n" \ + " cachee %1, 0x080(%0); cachee %1, 0x090(%0) \n" \ + " cachee %1, 0x0a0(%0); cachee %1, 0x0b0(%0) \n" \ + " cachee %1, 0x0c0(%0); cachee %1, 0x0d0(%0) \n" \ + " cachee %1, 0x0e0(%0); cachee %1, 0x0f0(%0) \n" \ + " cachee %1, 0x100(%0); cachee %1, 0x110(%0) \n" \ + " cachee %1, 0x120(%0); cachee %1, 0x130(%0) \n" \ + " cachee %1, 0x140(%0); cachee %1, 0x150(%0) \n" \ + " cachee %1, 0x160(%0); cachee %1, 0x170(%0) \n" \ + " cachee %1, 0x180(%0); cachee %1, 0x190(%0) \n" \ + " cachee %1, 0x1a0(%0); cachee %1, 0x1b0(%0) \n" \ + " cachee %1, 0x1c0(%0); cachee %1, 0x1d0(%0) \n" \ + " cachee %1, 0x1e0(%0); cachee %1, 0x1f0(%0) \n" \ + " .set pop \n" \ + : \ + : "r" (base), \ + "i" (op)); + +#define cache32_unroll32_user(base, op) \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noreorder \n" \ + " .set mips0 \n" \ + " .set eva \n" \ + " cachee %1, 0x000(%0); cachee %1, 0x020(%0) \n" \ + " cachee %1, 0x040(%0); cachee %1, 0x060(%0) \n" \ + " cachee %1, 0x080(%0); cachee %1, 0x0a0(%0) \n" \ + " cachee %1, 0x0c0(%0); cachee %1, 0x0e0(%0) \n" \ + " cachee %1, 0x100(%0); cachee %1, 0x120(%0) \n" \ + " cachee %1, 0x140(%0); cachee %1, 0x160(%0) \n" \ + " cachee %1, 0x180(%0); cachee %1, 0x1a0(%0) \n" \ + " cachee %1, 0x1c0(%0); cachee %1, 0x1e0(%0) \n" \ + " cachee %1, 0x200(%0); cachee %1, 0x220(%0) \n" \ + " cachee %1, 0x240(%0); cachee %1, 0x260(%0) \n" \ + " cachee %1, 0x280(%0); cachee %1, 0x2a0(%0) \n" \ + " cachee %1, 0x2c0(%0); cachee %1, 0x2e0(%0) \n" \ + " cachee %1, 0x300(%0); cachee %1, 0x320(%0) \n" \ + " cachee %1, 0x340(%0); cachee %1, 0x360(%0) \n" \ + " cachee %1, 0x380(%0); cachee %1, 0x3a0(%0) \n" \ + " cachee %1, 0x3c0(%0); cachee %1, 0x3e0(%0) \n" \ + " .set pop \n" \ + : \ + : "r" (base), \ + "i" (op)); + +#define cache64_unroll32_user(base, op) \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noreorder \n" \ + " .set mips0 \n" \ + " .set eva \n" \ + " cachee %1, 0x000(%0); cachee %1, 0x040(%0) \n" \ + " cachee %1, 0x080(%0); cachee %1, 0x0c0(%0) \n" \ + " cachee %1, 0x100(%0); cachee %1, 0x140(%0) \n" \ + " cachee %1, 0x180(%0); cachee %1, 0x1c0(%0) \n" \ + " cachee %1, 0x200(%0); cachee %1, 0x240(%0) \n" \ + " cachee %1, 0x280(%0); cachee %1, 0x2c0(%0) \n" \ + " cachee %1, 0x300(%0); cachee %1, 0x340(%0) \n" \ + " cachee %1, 0x380(%0); cachee %1, 0x3c0(%0) \n" \ + " cachee %1, 0x400(%0); cachee %1, 0x440(%0) \n" \ + " cachee %1, 0x480(%0); cachee %1, 0x4c0(%0) \n" \ + " cachee %1, 0x500(%0); cachee %1, 0x540(%0) \n" \ + " cachee %1, 0x580(%0); cachee %1, 0x5c0(%0) \n" \ + " cachee %1, 0x600(%0); cachee %1, 0x640(%0) \n" \ + " cachee %1, 0x680(%0); cachee %1, 0x6c0(%0) \n" \ + " cachee %1, 0x700(%0); cachee %1, 0x740(%0) \n" \ + " cachee %1, 0x780(%0); cachee %1, 0x7c0(%0) \n" \ + " .set pop \n" \ + : \ + : "r" (base), \ + "i" (op)); + /* build blast_xxx, blast_xxx_page, blast_xxx_page_indexed */ #define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize, extra) \ static inline void extra##blast_##pfx##cache##lsize(void) \ @@ -447,6 +533,32 @@ __BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 32 __BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64, ) __BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 128, ) +#define __BUILD_BLAST_USER_CACHE(pfx, desc, indexop, hitop, lsize) \ +static inline void blast_##pfx##cache##lsize##_user_page(unsigned long page) \ +{ \ + unsigned long start = page; \ + unsigned long end = page + PAGE_SIZE; \ + \ + __##pfx##flush_prologue \ + \ + do { \ + cache##lsize##_unroll32_user(start, hitop); \ + start += lsize * 32; \ + } while (start < end); \ + \ + __##pfx##flush_epilogue \ +} + +__BUILD_BLAST_USER_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, + 16) +__BUILD_BLAST_USER_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 16) +__BUILD_BLAST_USER_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, + 32) +__BUILD_BLAST_USER_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32) +__BUILD_BLAST_USER_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, + 64) +__BUILD_BLAST_USER_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64) + /* build blast_xxx_range, protected_blast_xxx_range */ #define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot, extra) \ static inline void prot##extra##blast_##pfx##cache##_range(unsigned long start, \ @@ -468,9 +580,47 @@ static inline void prot##extra##blast_##pfx##cache##_range(unsigned long start, __##pfx##flush_epilogue \ } +#ifndef CONFIG_EVA + __BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_, ) -__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_, ) __BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_, ) + +#else + +#define __BUILD_PROT_BLAST_CACHE_RANGE(pfx, desc, hitop) \ +static inline void protected_blast_##pfx##cache##_range(unsigned long start,\ + unsigned long end) \ +{ \ + unsigned long lsize = cpu_##desc##_line_size(); \ + unsigned long addr = start & ~(lsize - 1); \ + unsigned long aend = (end - 1) & ~(lsize - 1); \ + \ + __##pfx##flush_prologue \ + \ + if (segment_eq(get_fs(), USER_DS)) { \ + while (1) { \ + protected_cachee_op(hitop, addr); \ + if (addr == aend) \ + break; \ + addr += lsize; \ + } \ + } else { \ + while (1) { \ + protected_cache_op(hitop, addr); \ + if (addr == aend) \ + break; \ + addr += lsize; \ + } \ + \ + } \ + __##pfx##flush_epilogue \ +} + +__BUILD_PROT_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D) +__BUILD_PROT_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I) + +#endif +__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_, ) __BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I_Loongson2, \ protected_, loongson2_) __BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, , )