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Diffstat (limited to 'include/asm-mips/r4kcache.h')
| -rw-r--r-- | include/asm-mips/r4kcache.h | 598 |
1 files changed, 598 insertions, 0 deletions
diff --git a/include/asm-mips/r4kcache.h b/include/asm-mips/r4kcache.h new file mode 100644 index 000000000000..da03a32c1ca7 --- /dev/null +++ b/include/asm-mips/r4kcache.h @@ -0,0 +1,598 @@ +/* + * 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. + * + * Inline assembly cache operations. + * + * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) + * Copyright (C) 1997 - 2002 Ralf Baechle (ralf@gnu.org) + * Copyright (C) 2004 Ralf Baechle (ralf@linux-mips.org) + */ +#ifndef _ASM_R4KCACHE_H +#define _ASM_R4KCACHE_H + +#include <asm/asm.h> +#include <asm/cacheops.h> + +/* + * This macro return a properly sign-extended address suitable as base address + * for indexed cache operations. Two issues here: + * + * - The MIPS32 and MIPS64 specs permit an implementation to directly derive + * the index bits from the virtual address. This breaks with tradition + * set by the R4000. To keep unpleassant surprises from happening we pick + * an address in KSEG0 / CKSEG0. + * - We need a properly sign extended address for 64-bit code. To get away + * without ifdefs we let the compiler do it by a type cast. + */ +#define INDEX_BASE CKSEG0 + +#define cache_op(op,addr) \ + __asm__ __volatile__( \ + " .set noreorder \n" \ + " .set mips3\n\t \n" \ + " cache %0, %1 \n" \ + " .set mips0 \n" \ + " .set reorder" \ + : \ + : "i" (op), "m" (*(unsigned char *)(addr))) + +static inline void flush_icache_line_indexed(unsigned long addr) +{ + cache_op(Index_Invalidate_I, addr); +} + +static inline void flush_dcache_line_indexed(unsigned long addr) +{ + cache_op(Index_Writeback_Inv_D, addr); +} + +static inline void flush_scache_line_indexed(unsigned long addr) +{ + cache_op(Index_Writeback_Inv_SD, addr); +} + +static inline void flush_icache_line(unsigned long addr) +{ + cache_op(Hit_Invalidate_I, addr); +} + +static inline void flush_dcache_line(unsigned long addr) +{ + cache_op(Hit_Writeback_Inv_D, addr); +} + +static inline void invalidate_dcache_line(unsigned long addr) +{ + cache_op(Hit_Invalidate_D, addr); +} + +static inline void invalidate_scache_line(unsigned long addr) +{ + cache_op(Hit_Invalidate_SD, addr); +} + +static inline void flush_scache_line(unsigned long addr) +{ + cache_op(Hit_Writeback_Inv_SD, addr); +} + +/* + * The next two are for badland addresses like signal trampolines. + */ +static inline void protected_flush_icache_line(unsigned long addr) +{ + __asm__ __volatile__( + ".set noreorder\n\t" + ".set mips3\n" + "1:\tcache %0,(%1)\n" + "2:\t.set mips0\n\t" + ".set reorder\n\t" + ".section\t__ex_table,\"a\"\n\t" + STR(PTR)"\t1b,2b\n\t" + ".previous" + : + : "i" (Hit_Invalidate_I), "r" (addr)); +} + +/* + * R10000 / R12000 hazard - these processors don't support the Hit_Writeback_D + * cacheop so we use Hit_Writeback_Inv_D which is supported by all R4000-style + * caches. We're talking about one cacheline unnecessarily getting invalidated + * here so the penaltiy isn't overly hard. + */ +static inline void protected_writeback_dcache_line(unsigned long addr) +{ + __asm__ __volatile__( + ".set noreorder\n\t" + ".set mips3\n" + "1:\tcache %0,(%1)\n" + "2:\t.set mips0\n\t" + ".set reorder\n\t" + ".section\t__ex_table,\"a\"\n\t" + STR(PTR)"\t1b,2b\n\t" + ".previous" + : + : "i" (Hit_Writeback_Inv_D), "r" (addr)); +} + +static inline void protected_writeback_scache_line(unsigned long addr) +{ + __asm__ __volatile__( + ".set noreorder\n\t" + ".set mips3\n" + "1:\tcache %0,(%1)\n" + "2:\t.set mips0\n\t" + ".set reorder\n\t" + ".section\t__ex_table,\"a\"\n\t" + STR(PTR)"\t1b,2b\n\t" + ".previous" + : + : "i" (Hit_Writeback_Inv_SD), "r" (addr)); +} + +/* + * This one is RM7000-specific + */ +static inline void invalidate_tcache_page(unsigned long addr) +{ + cache_op(Page_Invalidate_T, addr); +} + +#define cache16_unroll32(base,op) \ + __asm__ __volatile__( \ + " .set noreorder \n" \ + " .set mips3 \n" \ + " cache %1, 0x000(%0); cache %1, 0x010(%0) \n" \ + " cache %1, 0x020(%0); cache %1, 0x030(%0) \n" \ + " cache %1, 0x040(%0); cache %1, 0x050(%0) \n" \ + " cache %1, 0x060(%0); cache %1, 0x070(%0) \n" \ + " cache %1, 0x080(%0); cache %1, 0x090(%0) \n" \ + " cache %1, 0x0a0(%0); cache %1, 0x0b0(%0) \n" \ + " cache %1, 0x0c0(%0); cache %1, 0x0d0(%0) \n" \ + " cache %1, 0x0e0(%0); cache %1, 0x0f0(%0) \n" \ + " cache %1, 0x100(%0); cache %1, 0x110(%0) \n" \ + " cache %1, 0x120(%0); cache %1, 0x130(%0) \n" \ + " cache %1, 0x140(%0); cache %1, 0x150(%0) \n" \ + " cache %1, 0x160(%0); cache %1, 0x170(%0) \n" \ + " cache %1, 0x180(%0); cache %1, 0x190(%0) \n" \ + " cache %1, 0x1a0(%0); cache %1, 0x1b0(%0) \n" \ + " cache %1, 0x1c0(%0); cache %1, 0x1d0(%0) \n" \ + " cache %1, 0x1e0(%0); cache %1, 0x1f0(%0) \n" \ + " .set mips0 \n" \ + " .set reorder \n" \ + : \ + : "r" (base), \ + "i" (op)); + +static inline void blast_dcache16(void) +{ + unsigned long start = INDEX_BASE; + unsigned long end = start + current_cpu_data.dcache.waysize; + unsigned long ws_inc = 1UL << current_cpu_data.dcache.waybit; + unsigned long ws_end = current_cpu_data.dcache.ways << + current_cpu_data.dcache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x200) + cache16_unroll32(addr|ws,Index_Writeback_Inv_D); +} + +static inline void blast_dcache16_page(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + + do { + cache16_unroll32(start,Hit_Writeback_Inv_D); + start += 0x200; + } while (start < end); +} + +static inline void blast_dcache16_page_indexed(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + unsigned long ws_inc = 1UL << current_cpu_data.dcache.waybit; + unsigned long ws_end = current_cpu_data.dcache.ways << + current_cpu_data.dcache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x200) + cache16_unroll32(addr|ws,Index_Writeback_Inv_D); +} + +static inline void blast_icache16(void) +{ + unsigned long start = INDEX_BASE; + unsigned long end = start + current_cpu_data.icache.waysize; + unsigned long ws_inc = 1UL << current_cpu_data.icache.waybit; + unsigned long ws_end = current_cpu_data.icache.ways << + current_cpu_data.icache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x200) + cache16_unroll32(addr|ws,Index_Invalidate_I); +} + +static inline void blast_icache16_page(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + + do { + cache16_unroll32(start,Hit_Invalidate_I); + start += 0x200; + } while (start < end); +} + +static inline void blast_icache16_page_indexed(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + unsigned long ws_inc = 1UL << current_cpu_data.icache.waybit; + unsigned long ws_end = current_cpu_data.icache.ways << + current_cpu_data.icache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x200) + cache16_unroll32(addr|ws,Index_Invalidate_I); +} + +static inline void blast_scache16(void) +{ + unsigned long start = INDEX_BASE; + unsigned long end = start + current_cpu_data.scache.waysize; + unsigned long ws_inc = 1UL << current_cpu_data.scache.waybit; + unsigned long ws_end = current_cpu_data.scache.ways << + current_cpu_data.scache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x200) + cache16_unroll32(addr|ws,Index_Writeback_Inv_SD); +} + +static inline void blast_scache16_page(unsigned long page) +{ + unsigned long start = page; + unsigned long end = page + PAGE_SIZE; + + do { + cache16_unroll32(start,Hit_Writeback_Inv_SD); + start += 0x200; + } while (start < end); +} + +static inline void blast_scache16_page_indexed(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + unsigned long ws_inc = 1UL << current_cpu_data.scache.waybit; + unsigned long ws_end = current_cpu_data.scache.ways << + current_cpu_data.scache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x200) + cache16_unroll32(addr|ws,Index_Writeback_Inv_SD); +} + +#define cache32_unroll32(base,op) \ + __asm__ __volatile__( \ + " .set noreorder \n" \ + " .set mips3 \n" \ + " cache %1, 0x000(%0); cache %1, 0x020(%0) \n" \ + " cache %1, 0x040(%0); cache %1, 0x060(%0) \n" \ + " cache %1, 0x080(%0); cache %1, 0x0a0(%0) \n" \ + " cache %1, 0x0c0(%0); cache %1, 0x0e0(%0) \n" \ + " cache %1, 0x100(%0); cache %1, 0x120(%0) \n" \ + " cache %1, 0x140(%0); cache %1, 0x160(%0) \n" \ + " cache %1, 0x180(%0); cache %1, 0x1a0(%0) \n" \ + " cache %1, 0x1c0(%0); cache %1, 0x1e0(%0) \n" \ + " cache %1, 0x200(%0); cache %1, 0x220(%0) \n" \ + " cache %1, 0x240(%0); cache %1, 0x260(%0) \n" \ + " cache %1, 0x280(%0); cache %1, 0x2a0(%0) \n" \ + " cache %1, 0x2c0(%0); cache %1, 0x2e0(%0) \n" \ + " cache %1, 0x300(%0); cache %1, 0x320(%0) \n" \ + " cache %1, 0x340(%0); cache %1, 0x360(%0) \n" \ + " cache %1, 0x380(%0); cache %1, 0x3a0(%0) \n" \ + " cache %1, 0x3c0(%0); cache %1, 0x3e0(%0) \n" \ + " .set mips0 \n" \ + " .set reorder \n" \ + : \ + : "r" (base), \ + "i" (op)); + +static inline void blast_dcache32(void) +{ + unsigned long start = INDEX_BASE; + unsigned long end = start + current_cpu_data.dcache.waysize; + unsigned long ws_inc = 1UL << current_cpu_data.dcache.waybit; + unsigned long ws_end = current_cpu_data.dcache.ways << + current_cpu_data.dcache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x400) + cache32_unroll32(addr|ws,Index_Writeback_Inv_D); +} + +static inline void blast_dcache32_page(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + + do { + cache32_unroll32(start,Hit_Writeback_Inv_D); + start += 0x400; + } while (start < end); +} + +static inline void blast_dcache32_page_indexed(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + unsigned long ws_inc = 1UL << current_cpu_data.dcache.waybit; + unsigned long ws_end = current_cpu_data.dcache.ways << + current_cpu_data.dcache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x400) + cache32_unroll32(addr|ws,Index_Writeback_Inv_D); +} + +static inline void blast_icache32(void) +{ + unsigned long start = INDEX_BASE; + unsigned long end = start + current_cpu_data.icache.waysize; + unsigned long ws_inc = 1UL << current_cpu_data.icache.waybit; + unsigned long ws_end = current_cpu_data.icache.ways << + current_cpu_data.icache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x400) + cache32_unroll32(addr|ws,Index_Invalidate_I); +} + +static inline void blast_icache32_page(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + + do { + cache32_unroll32(start,Hit_Invalidate_I); + start += 0x400; + } while (start < end); +} + +static inline void blast_icache32_page_indexed(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + unsigned long ws_inc = 1UL << current_cpu_data.icache.waybit; + unsigned long ws_end = current_cpu_data.icache.ways << + current_cpu_data.icache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x400) + cache32_unroll32(addr|ws,Index_Invalidate_I); +} + +static inline void blast_scache32(void) +{ + unsigned long start = INDEX_BASE; + unsigned long end = start + current_cpu_data.scache.waysize; + unsigned long ws_inc = 1UL << current_cpu_data.scache.waybit; + unsigned long ws_end = current_cpu_data.scache.ways << + current_cpu_data.scache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x400) + cache32_unroll32(addr|ws,Index_Writeback_Inv_SD); +} + +static inline void blast_scache32_page(unsigned long page) +{ + unsigned long start = page; + unsigned long end = page + PAGE_SIZE; + + do { + cache32_unroll32(start,Hit_Writeback_Inv_SD); + start += 0x400; + } while (start < end); +} + +static inline void blast_scache32_page_indexed(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + unsigned long ws_inc = 1UL << current_cpu_data.scache.waybit; + unsigned long ws_end = current_cpu_data.scache.ways << + current_cpu_data.scache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x400) + cache32_unroll32(addr|ws,Index_Writeback_Inv_SD); +} + +#define cache64_unroll32(base,op) \ + __asm__ __volatile__( \ + " .set noreorder \n" \ + " .set mips3 \n" \ + " cache %1, 0x000(%0); cache %1, 0x040(%0) \n" \ + " cache %1, 0x080(%0); cache %1, 0x0c0(%0) \n" \ + " cache %1, 0x100(%0); cache %1, 0x140(%0) \n" \ + " cache %1, 0x180(%0); cache %1, 0x1c0(%0) \n" \ + " cache %1, 0x200(%0); cache %1, 0x240(%0) \n" \ + " cache %1, 0x280(%0); cache %1, 0x2c0(%0) \n" \ + " cache %1, 0x300(%0); cache %1, 0x340(%0) \n" \ + " cache %1, 0x380(%0); cache %1, 0x3c0(%0) \n" \ + " cache %1, 0x400(%0); cache %1, 0x440(%0) \n" \ + " cache %1, 0x480(%0); cache %1, 0x4c0(%0) \n" \ + " cache %1, 0x500(%0); cache %1, 0x540(%0) \n" \ + " cache %1, 0x580(%0); cache %1, 0x5c0(%0) \n" \ + " cache %1, 0x600(%0); cache %1, 0x640(%0) \n" \ + " cache %1, 0x680(%0); cache %1, 0x6c0(%0) \n" \ + " cache %1, 0x700(%0); cache %1, 0x740(%0) \n" \ + " cache %1, 0x780(%0); cache %1, 0x7c0(%0) \n" \ + " .set mips0 \n" \ + " .set reorder \n" \ + : \ + : "r" (base), \ + "i" (op)); + +static inline void blast_icache64(void) +{ + unsigned long start = INDEX_BASE; + unsigned long end = start + current_cpu_data.icache.waysize; + unsigned long ws_inc = 1UL << current_cpu_data.icache.waybit; + unsigned long ws_end = current_cpu_data.icache.ways << + current_cpu_data.icache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x800) + cache64_unroll32(addr|ws,Index_Invalidate_I); +} + +static inline void blast_icache64_page(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + + do { + cache64_unroll32(start,Hit_Invalidate_I); + start += 0x800; + } while (start < end); +} + +static inline void blast_icache64_page_indexed(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + unsigned long ws_inc = 1UL << current_cpu_data.icache.waybit; + unsigned long ws_end = current_cpu_data.icache.ways << + current_cpu_data.icache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x800) + cache64_unroll32(addr|ws,Index_Invalidate_I); +} + +static inline void blast_scache64(void) +{ + unsigned long start = INDEX_BASE; + unsigned long end = start + current_cpu_data.scache.waysize; + unsigned long ws_inc = 1UL << current_cpu_data.scache.waybit; + unsigned long ws_end = current_cpu_data.scache.ways << + current_cpu_data.scache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x800) + cache64_unroll32(addr|ws,Index_Writeback_Inv_SD); +} + +static inline void blast_scache64_page(unsigned long page) +{ + unsigned long start = page; + unsigned long end = page + PAGE_SIZE; + + do { + cache64_unroll32(start,Hit_Writeback_Inv_SD); + start += 0x800; + } while (start < end); +} + +static inline void blast_scache64_page_indexed(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + unsigned long ws_inc = 1UL << current_cpu_data.scache.waybit; + unsigned long ws_end = current_cpu_data.scache.ways << + current_cpu_data.scache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x800) + cache64_unroll32(addr|ws,Index_Writeback_Inv_SD); +} + +#define cache128_unroll32(base,op) \ + __asm__ __volatile__( \ + " .set noreorder \n" \ + " .set mips3 \n" \ + " cache %1, 0x000(%0); cache %1, 0x080(%0) \n" \ + " cache %1, 0x100(%0); cache %1, 0x180(%0) \n" \ + " cache %1, 0x200(%0); cache %1, 0x280(%0) \n" \ + " cache %1, 0x300(%0); cache %1, 0x380(%0) \n" \ + " cache %1, 0x400(%0); cache %1, 0x480(%0) \n" \ + " cache %1, 0x500(%0); cache %1, 0x580(%0) \n" \ + " cache %1, 0x600(%0); cache %1, 0x680(%0) \n" \ + " cache %1, 0x700(%0); cache %1, 0x780(%0) \n" \ + " cache %1, 0x800(%0); cache %1, 0x880(%0) \n" \ + " cache %1, 0x900(%0); cache %1, 0x980(%0) \n" \ + " cache %1, 0xa00(%0); cache %1, 0xa80(%0) \n" \ + " cache %1, 0xb00(%0); cache %1, 0xb80(%0) \n" \ + " cache %1, 0xc00(%0); cache %1, 0xc80(%0) \n" \ + " cache %1, 0xd00(%0); cache %1, 0xd80(%0) \n" \ + " cache %1, 0xe00(%0); cache %1, 0xe80(%0) \n" \ + " cache %1, 0xf00(%0); cache %1, 0xf80(%0) \n" \ + " .set mips0 \n" \ + " .set reorder \n" \ + : \ + : "r" (base), \ + "i" (op)); + +static inline void blast_scache128(void) +{ + unsigned long start = INDEX_BASE; + unsigned long end = start + current_cpu_data.scache.waysize; + unsigned long ws_inc = 1UL << current_cpu_data.scache.waybit; + unsigned long ws_end = current_cpu_data.scache.ways << + current_cpu_data.scache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x1000) + cache128_unroll32(addr|ws,Index_Writeback_Inv_SD); +} + +static inline void blast_scache128_page(unsigned long page) +{ + unsigned long start = page; + unsigned long end = page + PAGE_SIZE; + + do { + cache128_unroll32(start,Hit_Writeback_Inv_SD); + start += 0x1000; + } while (start < end); +} + +static inline void blast_scache128_page_indexed(unsigned long page) +{ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + unsigned long ws_inc = 1UL << current_cpu_data.scache.waybit; + unsigned long ws_end = current_cpu_data.scache.ways << + current_cpu_data.scache.waybit; + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) + for (addr = start; addr < end; addr += 0x1000) + cache128_unroll32(addr|ws,Index_Writeback_Inv_SD); +} + +#endif /* _ASM_R4KCACHE_H */ |