| /* |
| * r4kcache.h: Inline assembly cache operations. |
| * |
| * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) |
| * |
| * $Id: r4kcache.h,v 1.7 1997/12/18 13:00:45 ralf Exp $ |
| * |
| * FIXME: Handle split L2 caches. |
| */ |
| #ifndef _MIPS_R4KCACHE_H |
| #define _MIPS_R4KCACHE_H |
| |
| #include <asm/asm.h> |
| #include <asm/cacheops.h> |
| |
| extern inline void flush_icache_line_indexed(unsigned long addr) |
| { |
| __asm__ __volatile__( |
| ".set noreorder\n\t" |
| ".set mips3\n\t" |
| "cache %1, (%0)\n\t" |
| ".set mips0\n\t" |
| ".set reorder" |
| : |
| : "r" (addr), |
| "i" (Index_Invalidate_I)); |
| } |
| |
| extern inline void flush_dcache_line_indexed(unsigned long addr) |
| { |
| __asm__ __volatile__( |
| ".set noreorder\n\t" |
| ".set mips3\n\t" |
| "cache %1, (%0)\n\t" |
| ".set mips0\n\t" |
| ".set reorder" |
| : |
| : "r" (addr), |
| "i" (Index_Writeback_Inv_D)); |
| } |
| |
| extern inline void flush_scache_line_indexed(unsigned long addr) |
| { |
| __asm__ __volatile__( |
| ".set noreorder\n\t" |
| ".set mips3\n\t" |
| "cache %1, (%0)\n\t" |
| ".set mips0\n\t" |
| ".set reorder" |
| : |
| : "r" (addr), |
| "i" (Index_Writeback_Inv_SD)); |
| } |
| |
| extern inline void flush_icache_line(unsigned long addr) |
| { |
| __asm__ __volatile__( |
| ".set noreorder\n\t" |
| ".set mips3\n\t" |
| "cache %1, (%0)\n\t" |
| ".set mips0\n\t" |
| ".set reorder" |
| : |
| : "r" (addr), |
| "i" (Hit_Invalidate_I)); |
| } |
| |
| extern inline void flush_dcache_line(unsigned long addr) |
| { |
| __asm__ __volatile__( |
| ".set noreorder\n\t" |
| ".set mips3\n\t" |
| "cache %1, (%0)\n\t" |
| ".set mips0\n\t" |
| ".set reorder" |
| : |
| : "r" (addr), |
| "i" (Hit_Writeback_Inv_D)); |
| } |
| |
| extern inline void invalidate_dcache_line(unsigned long addr) |
| { |
| __asm__ __volatile__( |
| ".set noreorder\n\t" |
| ".set mips3\n\t" |
| "cache %1, (%0)\n\t" |
| ".set mips0\n\t" |
| ".set reorder" |
| : |
| : "r" (addr), |
| "i" (Hit_Invalidate_D)); |
| } |
| |
| extern inline void invalidate_scache_line(unsigned long addr) |
| { |
| __asm__ __volatile__( |
| ".set noreorder\n\t" |
| ".set mips3\n\t" |
| "cache %1, (%0)\n\t" |
| ".set mips0\n\t" |
| ".set reorder" |
| : |
| : "r" (addr), |
| "i" (Hit_Invalidate_SD)); |
| } |
| |
| extern inline void flush_scache_line(unsigned long addr) |
| { |
| __asm__ __volatile__( |
| ".set noreorder\n\t" |
| ".set mips3\n\t" |
| "cache %1, (%0)\n\t" |
| ".set mips0\n\t" |
| ".set reorder" |
| : |
| : "r" (addr), |
| "i" (Hit_Writeback_Inv_SD)); |
| } |
| |
| /* |
| * The next two are for badland addresses like signal trampolines. |
| */ |
| extern inline void protected_flush_icache_line(unsigned long addr) |
| { |
| __asm__ __volatile__( |
| ".set noreorder\n\t" |
| ".set mips3\n" |
| "1:\tcache %1,(%0)\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" |
| : |
| : "r" (addr), |
| "i" (Hit_Invalidate_I)); |
| } |
| |
| extern inline void protected_writeback_dcache_line(unsigned long addr) |
| { |
| __asm__ __volatile__( |
| ".set noreorder\n\t" |
| ".set mips3\n" |
| "1:\tcache %1,(%0)\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" |
| : |
| : "r" (addr), |
| "i" (Hit_Writeback_D)); |
| } |
| |
| #define cache16_unroll32(base,op) \ |
| __asm__ __volatile__(" \ |
| .set noreorder; \ |
| .set mips3; \ |
| cache %1, 0x000(%0); cache %1, 0x010(%0); \ |
| cache %1, 0x020(%0); cache %1, 0x030(%0); \ |
| cache %1, 0x040(%0); cache %1, 0x050(%0); \ |
| cache %1, 0x060(%0); cache %1, 0x070(%0); \ |
| cache %1, 0x080(%0); cache %1, 0x090(%0); \ |
| cache %1, 0x0a0(%0); cache %1, 0x0b0(%0); \ |
| cache %1, 0x0c0(%0); cache %1, 0x0d0(%0); \ |
| cache %1, 0x0e0(%0); cache %1, 0x0f0(%0); \ |
| cache %1, 0x100(%0); cache %1, 0x110(%0); \ |
| cache %1, 0x120(%0); cache %1, 0x130(%0); \ |
| cache %1, 0x140(%0); cache %1, 0x150(%0); \ |
| cache %1, 0x160(%0); cache %1, 0x170(%0); \ |
| cache %1, 0x180(%0); cache %1, 0x190(%0); \ |
| cache %1, 0x1a0(%0); cache %1, 0x1b0(%0); \ |
| cache %1, 0x1c0(%0); cache %1, 0x1d0(%0); \ |
| cache %1, 0x1e0(%0); cache %1, 0x1f0(%0); \ |
| .set mips0; \ |
| .set reorder" \ |
| : \ |
| : "r" (base), \ |
| "i" (op)); |
| |
| extern inline void blast_dcache16(void) |
| { |
| unsigned long start = KSEG0; |
| unsigned long end = (start + dcache_size); |
| |
| while(start < end) { |
| cache16_unroll32(start,Index_Writeback_Inv_D); |
| start += 0x200; |
| } |
| } |
| |
| extern inline void blast_dcache16_page(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = (start + PAGE_SIZE); |
| |
| while(start < end) { |
| cache16_unroll32(start,Hit_Writeback_Inv_D); |
| start += 0x200; |
| } |
| } |
| |
| extern inline void blast_dcache16_page_indexed(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = (start + PAGE_SIZE); |
| |
| while(start < end) { |
| cache16_unroll32(start,Index_Writeback_Inv_D); |
| start += 0x200; |
| } |
| } |
| |
| extern inline void blast_icache16(void) |
| { |
| unsigned long start = KSEG0; |
| unsigned long end = (start + icache_size); |
| |
| while(start < end) { |
| cache16_unroll32(start,Index_Invalidate_I); |
| start += 0x200; |
| } |
| } |
| |
| extern inline void blast_icache16_page(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = (start + PAGE_SIZE); |
| |
| while(start < end) { |
| cache16_unroll32(start,Hit_Invalidate_I); |
| start += 0x200; |
| } |
| } |
| |
| extern inline void blast_icache16_page_indexed(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = (start + PAGE_SIZE); |
| |
| while(start < end) { |
| cache16_unroll32(start,Index_Invalidate_I); |
| start += 0x200; |
| } |
| } |
| |
| extern inline void blast_scache16(void) |
| { |
| unsigned long start = KSEG0; |
| unsigned long end = KSEG0 + scache_size; |
| |
| while(start < end) { |
| cache16_unroll32(start,Index_Writeback_Inv_SD); |
| start += 0x200; |
| } |
| } |
| |
| extern inline void blast_scache16_page(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = page + PAGE_SIZE; |
| |
| while(start < end) { |
| cache16_unroll32(start,Hit_Writeback_Inv_SD); |
| start += 0x200; |
| } |
| } |
| |
| extern inline void blast_scache16_page_indexed(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = page + PAGE_SIZE; |
| |
| while(start < end) { |
| cache16_unroll32(start,Index_Writeback_Inv_SD); |
| start += 0x200; |
| } |
| } |
| |
| #define cache32_unroll32(base,op) \ |
| __asm__ __volatile__(" \ |
| .set noreorder; \ |
| .set mips3; \ |
| cache %1, 0x000(%0); cache %1, 0x020(%0); \ |
| cache %1, 0x040(%0); cache %1, 0x060(%0); \ |
| cache %1, 0x080(%0); cache %1, 0x0a0(%0); \ |
| cache %1, 0x0c0(%0); cache %1, 0x0e0(%0); \ |
| cache %1, 0x100(%0); cache %1, 0x120(%0); \ |
| cache %1, 0x140(%0); cache %1, 0x160(%0); \ |
| cache %1, 0x180(%0); cache %1, 0x1a0(%0); \ |
| cache %1, 0x1c0(%0); cache %1, 0x1e0(%0); \ |
| cache %1, 0x200(%0); cache %1, 0x220(%0); \ |
| cache %1, 0x240(%0); cache %1, 0x260(%0); \ |
| cache %1, 0x280(%0); cache %1, 0x2a0(%0); \ |
| cache %1, 0x2c0(%0); cache %1, 0x2e0(%0); \ |
| cache %1, 0x300(%0); cache %1, 0x320(%0); \ |
| cache %1, 0x340(%0); cache %1, 0x360(%0); \ |
| cache %1, 0x380(%0); cache %1, 0x3a0(%0); \ |
| cache %1, 0x3c0(%0); cache %1, 0x3e0(%0); \ |
| .set mips0; \ |
| .set reorder" \ |
| : \ |
| : "r" (base), \ |
| "i" (op)); |
| |
| extern inline void blast_dcache32(void) |
| { |
| unsigned long start = KSEG0; |
| unsigned long end = (start + dcache_size); |
| |
| while(start < end) { |
| cache32_unroll32(start,Index_Writeback_Inv_D); |
| start += 0x400; |
| } |
| } |
| |
| /* |
| * Call this function only with interrupts disabled or R4600 V2.0 may blow |
| * up on you. |
| * |
| * R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D, |
| * Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Excl_D will only |
| * operate correctly if the internal data cache refill buffer is empty. These |
| * CACHE instructions should be separated from any potential data cache miss |
| * by a load instruction to an uncached address to empty the response buffer." |
| * (Revision 2.0 device errata from IDT available on http://www.idt.com/ |
| * in .pdf format.) |
| */ |
| extern inline void blast_dcache32_page(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = (start + PAGE_SIZE); |
| |
| /* |
| * Sigh ... workaround for R4600 v1.7 bug. Explanation see above. |
| */ |
| *(volatile unsigned long *)KSEG1; |
| |
| __asm__ __volatile__("nop;nop;nop;nop"); |
| while(start < end) { |
| cache32_unroll32(start,Hit_Writeback_Inv_D); |
| start += 0x400; |
| } |
| } |
| |
| extern inline void blast_dcache32_page_indexed(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = (start + PAGE_SIZE); |
| |
| while(start < end) { |
| cache32_unroll32(start,Index_Writeback_Inv_D); |
| start += 0x400; |
| } |
| } |
| |
| extern inline void blast_icache32(void) |
| { |
| unsigned long start = KSEG0; |
| unsigned long end = (start + icache_size); |
| |
| while(start < end) { |
| cache32_unroll32(start,Index_Invalidate_I); |
| start += 0x400; |
| } |
| } |
| |
| extern inline void blast_icache32_page(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = (start + PAGE_SIZE); |
| |
| while(start < end) { |
| cache32_unroll32(start,Hit_Invalidate_I); |
| start += 0x400; |
| } |
| } |
| |
| extern inline void blast_icache32_page_indexed(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = (start + PAGE_SIZE); |
| |
| while(start < end) { |
| cache32_unroll32(start,Index_Invalidate_I); |
| start += 0x400; |
| } |
| } |
| |
| extern inline void blast_scache32(void) |
| { |
| unsigned long start = KSEG0; |
| unsigned long end = KSEG0 + scache_size; |
| |
| while(start < end) { |
| cache32_unroll32(start,Index_Writeback_Inv_SD); |
| start += 0x400; |
| } |
| } |
| |
| extern inline void blast_scache32_page(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = page + PAGE_SIZE; |
| |
| while(start < end) { |
| cache32_unroll32(start,Hit_Writeback_Inv_SD); |
| start += 0x400; |
| } |
| } |
| |
| extern inline void blast_scache32_page_indexed(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = page + PAGE_SIZE; |
| |
| while(start < end) { |
| cache32_unroll32(start,Index_Writeback_Inv_SD); |
| start += 0x400; |
| } |
| } |
| |
| #define cache64_unroll32(base,op) \ |
| __asm__ __volatile__(" \ |
| .set noreorder; \ |
| .set mips3; \ |
| cache %1, 0x000(%0); cache %1, 0x040(%0); \ |
| cache %1, 0x080(%0); cache %1, 0x0c0(%0); \ |
| cache %1, 0x100(%0); cache %1, 0x140(%0); \ |
| cache %1, 0x180(%0); cache %1, 0x1c0(%0); \ |
| cache %1, 0x200(%0); cache %1, 0x240(%0); \ |
| cache %1, 0x280(%0); cache %1, 0x2c0(%0); \ |
| cache %1, 0x300(%0); cache %1, 0x340(%0); \ |
| cache %1, 0x380(%0); cache %1, 0x3c0(%0); \ |
| cache %1, 0x400(%0); cache %1, 0x440(%0); \ |
| cache %1, 0x480(%0); cache %1, 0x4c0(%0); \ |
| cache %1, 0x500(%0); cache %1, 0x540(%0); \ |
| cache %1, 0x580(%0); cache %1, 0x5c0(%0); \ |
| cache %1, 0x600(%0); cache %1, 0x640(%0); \ |
| cache %1, 0x680(%0); cache %1, 0x6c0(%0); \ |
| cache %1, 0x700(%0); cache %1, 0x740(%0); \ |
| cache %1, 0x780(%0); cache %1, 0x7c0(%0); \ |
| .set mips0; \ |
| .set reorder" \ |
| : \ |
| : "r" (base), \ |
| "i" (op)); |
| |
| extern inline void blast_scache64(void) |
| { |
| unsigned long start = KSEG0; |
| unsigned long end = KSEG0 + scache_size; |
| |
| while(start < end) { |
| cache64_unroll32(start,Index_Writeback_Inv_SD); |
| start += 0x800; |
| } |
| } |
| |
| extern inline void blast_scache64_page(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = page + PAGE_SIZE; |
| |
| while(start < end) { |
| cache64_unroll32(start,Hit_Writeback_Inv_SD); |
| start += 0x800; |
| } |
| } |
| |
| extern inline void blast_scache64_page_indexed(unsigned long page) |
| { |
| unsigned long start = page; |
| unsigned long end = page + PAGE_SIZE; |
| |
| while(start < end) { |
| cache64_unroll32(start,Index_Writeback_Inv_SD); |
| start += 0x800; |
| } |
| } |
| |
| #define cache128_unroll32(base,op) \ |
| __asm__ __volatile__(" \ |
| .set noreorder; \ |
| .set mips3; \ |
| cache %1, 0x000(%0); cache %1, 0x080(%0); \ |
| cache %1, 0x100(%0); cache %1, 0x180(%0); \ |
| cache %1, 0x200(%0); cache %1, 0x280(%0); \ |
| cache %1, 0x300(%0); cache %1, 0x380(%0); \ |
| cache %1, 0x400(%0); cache %1, 0x480(%0); \ |
| cache %1, 0x500(%0); cache %1, 0x580(%0); \ |
| cache %1, 0x600(%0); cache %1, 0x680(%0); \ |
| cache %1, 0x700(%0); cache %1, 0x780(%0); \ |
| cache %1, 0x800(%0); cache %1, 0x880(%0); \ |
| cache %1, 0x900(%0); cache %1, 0x980(%0); \ |
| cache %1, 0xa00(%0); cache %1, 0xa80(%0); \ |
| cache %1, 0xb00(%0); cache %1, 0xb80(%0); \ |
| cache %1, 0xc00(%0); cache %1, 0xc80(%0); \ |
| cache %1, 0xd00(%0); cache %1, 0xd80(%0); \ |
| cache %1, 0xe00(%0); cache %1, 0xe80(%0); \ |
| cache %1, 0xf00(%0); cache %1, 0xf80(%0); \ |
| .set mips0; \ |
| .set reorder" \ |
| : \ |
| : "r" (base), \ |
| "i" (op)); |
| |
| extern inline void blast_scache128(void) |
| { |
| unsigned long start = KSEG0; |
| unsigned long end = KSEG0 + scache_size; |
| |
| while(start < end) { |
| cache128_unroll32(start,Index_Writeback_Inv_SD); |
| start += 0x1000; |
| } |
| } |
| |
| extern inline void blast_scache128_page(unsigned long page) |
| { |
| cache128_unroll32(page,Hit_Writeback_Inv_SD); |
| } |
| |
| extern inline void blast_scache128_page_indexed(unsigned long page) |
| { |
| cache128_unroll32(page,Index_Writeback_Inv_SD); |
| } |
| |
| #endif /* !(_MIPS_R4KCACHE_H) */ |