r10kcache.h
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上传日期:2013-02-24
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- /*
- * 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) 1999 Ralf Baechle
- * Copyright (C) 1999 Silicon Graphics, Inc.
- *
- * FIXME: Handle split L2 caches.
- */
- #ifndef _ASM_R10KCACHE_H
- #define _ASM_R10KCACHE_H
- #include <asm/asm.h>
- #include <asm/r10kcacheops.h>
- /* These are fixed for the current R10000. */
- #define icache_size 0x8000
- #define dcache_size 0x8000
- #define icache_way_size 0x4000
- #define dcache_way_size 0x4000
- #define ic_lsize 64
- #define dc_lsize 32
- /* These are configuration dependant. */
- #define scache_size() ({
- unsigned long __res;
- __res = (read_32bit_cp0_register(CP0_CONFIG) >> 16) & 3;
- __res = 1 << (__res + 19);
- __res;
- })
- #define sc_lsize() ({
- unsigned long __res;
- __res = (read_32bit_cp0_register(CP0_CONFIG) >> 13) & 1;
- __res = 1 << (__res + 6);
- __res;
- })
- extern inline void flush_icache_line_indexed(unsigned long addr)
- {
- __asm__ __volatile__(
- ".set noreordernt"
- "cache %1, (%0)nt"
- ".set reorder"
- :
- : "r" (addr), "i" (Index_Invalidate_I));
- }
- extern inline void flush_dcache_line_indexed(unsigned long addr)
- {
- __asm__ __volatile__(
- ".set noreordernt"
- "cache %1, (%0)nt"
- ".set reorder"
- :
- : "r" (addr), "i" (Index_Writeback_Inv_D));
- }
- extern inline void flush_scache_line_indexed(unsigned long addr)
- {
- __asm__ __volatile__(
- ".set noreordernt"
- "cache %1, (%0)nt"
- ".set reorder"
- :
- : "r" (addr), "i" (Index_Writeback_Inv_S));
- }
- extern inline void flush_icache_line(unsigned long addr)
- {
- __asm__ __volatile__(
- ".set noreordernt"
- "cache %1, (%0)nt"
- ".set reorder"
- :
- : "r" (addr), "i" (Hit_Invalidate_I));
- }
- extern inline void flush_dcache_line(unsigned long addr)
- {
- __asm__ __volatile__(
- ".set noreordernt"
- "cache %1, (%0)nt"
- ".set reorder"
- :
- : "r" (addr), "i" (Hit_Writeback_Inv_D));
- }
- extern inline void invalidate_dcache_line(unsigned long addr)
- {
- __asm__ __volatile__(
- ".set noreordernt"
- "cache %1, (%0)nt"
- ".set reorder"
- :
- : "r" (addr), "i" (Hit_Invalidate_D));
- }
- extern inline void invalidate_scache_line(unsigned long addr)
- {
- __asm__ __volatile__(
- ".set noreordernt"
- "cache %1, (%0)nt"
- ".set reorder"
- :
- : "r" (addr), "i" (Hit_Invalidate_S));
- }
- extern inline void flush_scache_line(unsigned long addr)
- {
- __asm__ __volatile__(
- ".set noreordernt"
- "cache %1, (%0)nt"
- ".set reorder"
- :
- : "r" (addr), "i" (Hit_Writeback_Inv_S));
- }
- /*
- * The next two are for badland addresses like signal trampolines.
- */
- extern inline void protected_flush_icache_line(unsigned long addr)
- {
- __asm__ __volatile__(
- ".set noreordernt"
- "1:tcache %1,(%0)n"
- "2:t.set reordernt"
- ".sectiont__ex_table,"a"nt"
- ".dwordt1b,2bnt"
- ".previous"
- :
- : "r" (addr), "i" (Hit_Invalidate_I));
- }
- extern inline void protected_writeback_dcache_line(unsigned long addr)
- {
- __asm__ __volatile__(
- ".set noreordernt"
- "1:tcache %1,(%0)n"
- "2:t.set reordernt"
- ".sectiont__ex_table,"a"nt"
- ".dwordt1b,2bnt"
- ".previous"
- :
- : "r" (addr), "i" (Hit_Writeback_Inv_D));
- }
- #define cache32_unroll16(base,op)
- __asm__ __volatile__("
- .set noreorder;
- 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);
- .set reorder"
- :
- : "r" (base),
- "i" (op));
- #define cache32_unroll32(base,op)
- __asm__ __volatile__("
- .set noreorder;
- 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 reorder"
- :
- : "r" (base),
- "i" (op));
- extern inline void blast_dcache32(void)
- {
- unsigned long way0 = KSEG0;
- unsigned long way1 = way0 ^ 1;
- unsigned long end = (way0 + dcache_way_size);
- while (way0 < end) {
- cache32_unroll16(way0, Index_Writeback_Inv_D);
- cache32_unroll16(way1, Index_Writeback_Inv_D);
- way0 += 0x200;
- way1 += 0x200;
- }
- }
- extern inline void blast_dcache32_page(unsigned long page)
- {
- unsigned long start = page;
- unsigned long end = page + PAGE_SIZE;
- while (start < end) {
- cache32_unroll32(start, Hit_Writeback_Inv_D);
- start += 0x400;
- }
- }
- extern inline void blast_dcache32_page_indexed(unsigned long page)
- {
- unsigned long way0 = page;
- unsigned long way1 = page ^ 1;
- unsigned long end = page + PAGE_SIZE;
- while (way0 < end) {
- cache32_unroll16(way0, Index_Writeback_Inv_D);
- cache32_unroll16(way1, Index_Writeback_Inv_D);
- way0 += 0x200;
- way1 += 0x200;
- }
- }
- #define cache64_unroll16(base,op)
- __asm__ __volatile__("
- .set noreorder;
- 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);
- .set reorder"
- :
- : "r" (base),
- "i" (op));
- #define cache64_unroll32(base,op)
- __asm__ __volatile__("
- .set noreorder;
- 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 reorder"
- :
- : "r" (base),
- "i" (op));
- extern inline void blast_icache64(void)
- {
- unsigned long way0 = KSEG0;
- unsigned long way1 = way0 ^ 1;
- unsigned long end = way0 + icache_way_size;
- while (way0 < end) {
- cache64_unroll16(way0,Index_Invalidate_I);
- cache64_unroll16(way1,Index_Invalidate_I);
- way0 += 0x400;
- way1 += 0x400;
- }
- }
- extern inline void blast_icache64_page(unsigned long page)
- {
- unsigned long start = page;
- unsigned long end = page + PAGE_SIZE;
- while (start < end) {
- cache64_unroll32(start,Hit_Invalidate_I);
- start += 0x800;
- }
- }
- extern inline void blast_icache64_page_indexed(unsigned long page)
- {
- unsigned long way0 = page;
- unsigned long way1 = page ^ 1;
- unsigned long end = page + PAGE_SIZE;
- while (way0 < end) {
- cache64_unroll16(way0,Index_Invalidate_I);
- cache64_unroll16(way1,Index_Invalidate_I);
- way0 += 0x400;
- way1 += 0x400;
- }
- }
- extern inline void blast_scache64(void)
- {
- unsigned long way0 = KSEG0;
- unsigned long way1 = way0 ^ 1;
- unsigned long end = KSEG0 + scache_size();
- while (way0 < end) {
- cache64_unroll16(way0,Index_Writeback_Inv_S);
- cache64_unroll16(way1,Index_Writeback_Inv_S);
- way0 += 0x400;
- way1 += 0x400;
- }
- }
- 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_S);
- start += 0x800;
- }
- }
- extern inline void blast_scache64_page_indexed(unsigned long page)
- {
- unsigned long way0 = page;
- unsigned long way1 = page ^ 1;
- unsigned long end = page + PAGE_SIZE;
- while (way0 < end) {
- cache64_unroll16(way0,Index_Writeback_Inv_S);
- cache64_unroll16(way1,Index_Writeback_Inv_S);
- way0 += 0x400;
- way1 += 0x400;
- }
- }
- #define cache128_unroll16(base,op)
- __asm__ __volatile__("
- .set noreorder;
- 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);
- .set reorder"
- :
- : "r" (base),
- "i" (op));
- #define cache128_unroll32(base,op)
- __asm__ __volatile__("
- .set noreorder;
- 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 reorder"
- :
- : "r" (base),
- "i" (op));
- extern inline void blast_scache128(void)
- {
- unsigned long way0 = KSEG0;
- unsigned long way1 = way0 ^ 1;
- unsigned long end = way0 + scache_size();
- while (way0 < end) {
- cache128_unroll16(way0, Index_Writeback_Inv_S);
- cache128_unroll16(way1, Index_Writeback_Inv_S);
- way0 += 0x800;
- way1 += 0x800;
- }
- }
- extern inline void blast_scache128_page(unsigned long page)
- {
- cache128_unroll32(page, Hit_Writeback_Inv_S);
- }
- extern inline void blast_scache128_page_indexed(unsigned long page)
- {
- cache128_unroll32(page , Index_Writeback_Inv_S);
- cache128_unroll32(page ^ 1, Index_Writeback_Inv_S);
- }
- #endif /* _ASM_R10KCACHE_H */