Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/35990 )
Change subject: cpu/intel/car: Correctly Cache the bootblock with C_ENVIRONMENT_BOOTBLOCK ......................................................................
cpu/intel/car: Correctly Cache the bootblock with C_ENVIRONMENT_BOOTBLOCK
With CONFIG_C_ENVIRONMENT_BOOTBLOCK it makes more sense to rely on the size of the bootblock over CONFIG_XIP_ROM_SIZE. To make this work, only powers of 2 are allowed as bootblock size.
Change-Id: Ic8104ca9c51e4d2eccdb277e4c2111d2da662f3e Signed-off-by: Arthur Heymans arthur@aheymans.xyz --- M src/cpu/intel/car/core2/cache_as_ram.S M src/cpu/intel/car/p3/cache_as_ram.S M src/cpu/intel/car/p4-netburst/cache_as_ram.S 3 files changed, 34 insertions(+), 6 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/90/35990/1
diff --git a/src/cpu/intel/car/core2/cache_as_ram.S b/src/cpu/intel/car/core2/cache_as_ram.S index f8fa806..c7034f8 100644 --- a/src/cpu/intel/car/core2/cache_as_ram.S +++ b/src/cpu/intel/car/core2/cache_as_ram.S @@ -18,6 +18,15 @@ #define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE #define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE
+#if CONFIG_C_ENVIRONMENT_BOOTBLOCK +#if ((CONFIG_C_ENV_BOOTBLOCK_SIZE & (CONFIG_C_ENV_BOOTBLOCK_SIZE - 1)) != 0) +#error "CONFIG_C_ENV_BOOTBLOCK_SIZE must be a power of 2!" +#endif +#define XIP_ROM_SIZE CONFIG_C_ENV_BOOTBLOCK_SIZE +#else +#define XIP_ROM_SIZE CONFIG_XIP_ROM_SIZE +#endif + .global bootblock_pre_c_entry
.code32 @@ -148,13 +157,13 @@ * https://mail.coreboot.org/pipermail/coreboot/2010-October/060922.html */ movl $_program, %eax - andl $(~(CONFIG_XIP_ROM_SIZE - 1)), %eax + andl $(~(XIP_ROM_SIZE - 1)), %eax orl $MTRR_TYPE_WRPROT, %eax wrmsr
movl $MTRR_PHYS_MASK(1), %ecx rdmsr - movl $(~(CONFIG_XIP_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax + movl $(~(XIP_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax wrmsr
post_code(0x28) diff --git a/src/cpu/intel/car/p3/cache_as_ram.S b/src/cpu/intel/car/p3/cache_as_ram.S index 9a7dc5f..c025187 100644 --- a/src/cpu/intel/car/p3/cache_as_ram.S +++ b/src/cpu/intel/car/p3/cache_as_ram.S @@ -18,6 +18,15 @@ #define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE #define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE
+#if CONFIG_C_ENVIRONMENT_BOOTBLOCK +#if ((CONFIG_C_ENV_BOOTBLOCK_SIZE & (CONFIG_C_ENV_BOOTBLOCK_SIZE - 1)) != 0) +#error "CONFIG_C_ENV_BOOTBLOCK_SIZE must be a power of 2!" +#endif +#define XIP_ROM_SIZE CONFIG_C_ENV_BOOTBLOCK_SIZE +#else +#define XIP_ROM_SIZE CONFIG_XIP_ROM_SIZE +#endif + .global bootblock_pre_c_entry
.code32 @@ -136,13 +145,13 @@ * https://mail.coreboot.org/pipermail/coreboot/2010-October/060922.html */ movl $_program, %eax - andl $(~(CONFIG_XIP_ROM_SIZE - 1)), %eax + andl $(~(XIP_ROM_SIZE - 1)), %eax orl $MTRR_TYPE_WRPROT, %eax wrmsr
movl $MTRR_PHYS_MASK(1), %ecx rdmsr - movl $(~(CONFIG_XIP_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax + movl $(~(XIP_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax wrmsr
post_code(0x2e) diff --git a/src/cpu/intel/car/p4-netburst/cache_as_ram.S b/src/cpu/intel/car/p4-netburst/cache_as_ram.S index b7eb37b..4287583 100644 --- a/src/cpu/intel/car/p4-netburst/cache_as_ram.S +++ b/src/cpu/intel/car/p4-netburst/cache_as_ram.S @@ -26,6 +26,16 @@ #define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE #define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE
+#if CONFIG_C_ENVIRONMENT_BOOTBLOCK +#if ((CONFIG_C_ENV_BOOTBLOCK_SIZE & (CONFIG_C_ENV_BOOTBLOCK_SIZE - 1)) != 0) +#error "CONFIG_C_ENV_BOOTBLOCK_SIZE must be a power of 2!" +#endif +#define XIP_ROM_SIZE CONFIG_C_ENV_BOOTBLOCK_SIZE +#else +#define XIP_ROM_SIZE CONFIG_XIP_ROM_SIZE +#endif + + .global bootblock_pre_c_entry
.code32 @@ -354,13 +364,13 @@ * https://mail.coreboot.org/pipermail/coreboot/2010-October/060922.html */ movl $_program, %eax - andl $(~(CONFIG_XIP_ROM_SIZE - 1)), %eax + andl $(~(XIP_ROM_SIZE - 1)), %eax orl $MTRR_TYPE_WRPROT, %eax wrmsr
movl $MTRR_PHYS_MASK(1), %ecx rdmsr - movl $(~(CONFIG_XIP_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax + movl $(~(XIP_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax wrmsr
fill_cache: