Author: uwe Date: Thu Sep 30 23:22:40 2010 New Revision: 5887 URL: https://tracker.coreboot.org/trac/coreboot/changeset/5887
Log: Use existing, readable MTRR #defines instead of hardcoding numbers.
Replace $0x200 with $MTRRphysBase_MSR(0) etc. Also, move some #ifdef stuff a little bit around (should not affect any functionality) to make the Intel/AMD/VIA CAR implementations more similar and easier to compare.
Signed-off-by: Uwe Hermann uwe@hermann-uwe.de Acked-by: Myles Watson mylesgw@gmail.com
Modified: trunk/src/cpu/amd/car/cache_as_ram.inc trunk/src/cpu/intel/car/cache_as_ram.inc trunk/src/cpu/via/car/cache_as_ram.inc
Modified: trunk/src/cpu/amd/car/cache_as_ram.inc ============================================================================== --- trunk/src/cpu/amd/car/cache_as_ram.inc Thu Sep 30 18:55:02 2010 (r5886) +++ trunk/src/cpu/amd/car/cache_as_ram.inc Thu Sep 30 23:22:40 2010 (r5887) @@ -243,13 +243,13 @@
#if CacheSize > 0x8000 /* enable caching for 32K-64K using fixed mtrr */ - movl $0x268, %ecx /* fix4k_c0000*/ + movl $MTRRfix4K_C0000_MSR, %ecx simplemask CacheSize, 0x8000 wrmsr #endif
/* enable caching for 0-32K using fixed mtrr */ - movl $0x269, %ecx /* fix4k_c8000*/ + movl $MTRRfix4K_C8000_MSR, %ecx simplemask CacheSize, 0 wrmsr
@@ -260,22 +260,23 @@ wrmsr
#if defined(CONFIG_XIP_ROM_SIZE) && defined(CONFIG_XIP_ROM_BASE) - /* enable write base caching so we can do execute in place - * on the flash rom. - */ - movl $0x202, %ecx - xorl %edx, %edx
#if defined(CONFIG_TINY_BOOTBLOCK) && CONFIG_TINY_BOOTBLOCK #define REAL_XIP_ROM_BASE AUTO_XIP_ROM_BASE #else #define REAL_XIP_ROM_BASE CONFIG_XIP_ROM_BASE #endif + + /* enable write base caching so we can do execute in place + * on the flash rom. + */ + movl $MTRRphysBase_MSR(1), %ecx + xorl %edx, %edx movl $REAL_XIP_ROM_BASE, %eax orl $MTRR_TYPE_WRBACK, %eax wrmsr
- movl $0x203, %ecx + movl $MTRRphysMask_MSR(1), %ecx movl $0xff, %edx /* (1 << (CONFIG_CPU_ADDR_BITS - 32)) - 1 for K8 (CONFIG_CPU_ADDR_BITS = 40) */ jmp_if_k8(wbcache_post_fam10_setup) movl $0xffff, %edx /* (1 << (CONFIG_CPU_ADDR_BITS - 32)) - 1 for FAM10 (CONFIG_CPU_ADDR_BITS = 48) */
Modified: trunk/src/cpu/intel/car/cache_as_ram.inc ============================================================================== --- trunk/src/cpu/intel/car/cache_as_ram.inc Thu Sep 30 18:55:02 2010 (r5886) +++ trunk/src/cpu/intel/car/cache_as_ram.inc Thu Sep 30 23:22:40 2010 (r5887) @@ -196,11 +196,13 @@ wrmsr
#if defined(CONFIG_XIP_ROM_SIZE) && defined(CONFIG_XIP_ROM_BASE) + #if defined(CONFIG_TINY_BOOTBLOCK) && CONFIG_TINY_BOOTBLOCK #define REAL_XIP_ROM_BASE AUTO_XIP_ROM_BASE #else #define REAL_XIP_ROM_BASE CONFIG_XIP_ROM_BASE #endif + /* enable write base caching so we can do execute in place * on the flash rom. */
Modified: trunk/src/cpu/via/car/cache_as_ram.inc ============================================================================== --- trunk/src/cpu/via/car/cache_as_ram.inc Thu Sep 30 18:55:02 2010 (r5886) +++ trunk/src/cpu/via/car/cache_as_ram.inc Thu Sep 30 23:22:40 2010 (r5887) @@ -78,36 +78,33 @@ .long 0x000 /* NULL, end of table */
clear_fixed_var_mtrr_out: - /* MTRRPhysBase */ - movl $0x200, %ecx + movl $MTRRphysBase_MSR(0), %ecx xorl %edx, %edx movl $(CacheBase|MTRR_TYPE_WRBACK),%eax wrmsr
- /* MTRRPhysMask */ - movl $0x201, %ecx + movl $MTRRphysMask_MSR(0), %ecx /* This assumes we never access addresses above 2^36 in CAR. */ movl $0x0000000f,%edx movl $(~(CacheSize-1)|0x800),%eax wrmsr
- /* enable write base caching so we can do execute in place - * on the flash rom. - */ - /* MTRRPhysBase */ - movl $0x202, %ecx - xorl %edx, %edx #if defined(CONFIG_TINY_BOOTBLOCK) && CONFIG_TINY_BOOTBLOCK #define REAL_XIP_ROM_BASE AUTO_XIP_ROM_BASE #else #define REAL_XIP_ROM_BASE CONFIG_XIP_ROM_BASE #endif + + /* enable write base caching so we can do execute in place + * on the flash rom. + */ + movl $MTRRphysBase_MSR(1), %ecx + xorl %edx, %edx movl $REAL_XIP_ROM_BASE, %eax orl $MTRR_TYPE_WRBACK, %eax wrmsr
- /* MTRRPhysMask */ - movl $0x203, %ecx + movl $MTRRphysMask_MSR(1), %ecx movl $0x0000000f, %edx movl $(~(CONFIG_XIP_ROM_SIZE - 1) | 0x800), %eax wrmsr @@ -195,8 +192,7 @@
/* Set the default memory type and disable fixed and enable variable MTRRs */ - movl $0x2ff, %ecx - //movl $MTRRdefType_MSR, %ecx + movl $MTRRdefType_MSR, %ecx xorl %edx, %edx
/* Enable Variable and Disable Fixed MTRRs */ @@ -204,7 +200,7 @@ wrmsr
/* enable caching for first 1M using variable mtrr */ - movl $0x200, %ecx + movl $MTRRphysBase_MSR(0), %ecx xorl %edx, %edx movl $(0 | 6), %eax //movl $(0 | MTRR_TYPE_WRBACK), %eax @@ -216,41 +212,41 @@ * And in x86_setup_fixed_mtrrs()(mtrr.c), 0-256M is set cacheable. */
- movl $0x201, %ecx + movl $MTRRphysMask_MSR(0), %ecx movl $0x0000000f, %edx /* AMD 40 bit 0xff*/ movl $((~(( 0 + 0x80000) - 1)) | 0x800), %eax wrmsr
- movl $0x202, %ecx + movl $MTRRphysBase_MSR(1), %ecx xorl %edx, %edx movl $(0x80000 | 6), %eax orl $(0 | 6), %eax wrmsr
- movl $0x203, %ecx + movl $MTRRphysMask_MSR(1), %ecx movl $0x0000000f, %edx /* AMD 40 bit 0xff*/ movl $((~(( 0 + 0x20000) - 1)) | 0x800), %eax wrmsr
- movl $0x204, %ecx + movl $MTRRphysBase_MSR(2), %ecx xorl %edx, %edx movl $(0xc0000 | 6), %eax orl $(0 | 6), %eax wrmsr
- movl $0x205, %ecx + movl $MTRRphysMask_MSR(2), %ecx movl $0x0000000f, %edx /* AMD 40 bit 0xff*/ movl $((~(( 0 + 0x40000) - 1)) | 0x800), %eax wrmsr
/* cache XIP_ROM_BASE-SIZE to speedup coreboot code */ - movl $0x206, %ecx + movl $MTRRphysBase_MSR(3), %ecx xorl %edx, %edx movl $REAL_XIP_ROM_BASE,%eax orl $(0 | 6), %eax wrmsr
- movl $0x207, %ecx + movl $MTRRphysMask_MSR(3), %ecx xorl %edx, %edx movl $CONFIG_XIP_ROM_SIZE,%eax decl %eax