diff options
Diffstat (limited to 'src/cpu/amd/mtrr')
| -rw-r--r-- | src/cpu/amd/mtrr/amd_mtrr.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/src/cpu/amd/mtrr/amd_mtrr.c b/src/cpu/amd/mtrr/amd_mtrr.c index ec72425693..f639d59bad 100644 --- a/src/cpu/amd/mtrr/amd_mtrr.c +++ b/src/cpu/amd/mtrr/amd_mtrr.c @@ -102,6 +102,20 @@ static void set_fixed_mtrr_resource(void *gp, struct device *dev, struct resourc } +static void uma_fb_resource(void *gp, struct device *dev, struct resource *res) +{ + struct mem_state *state = gp; + unsigned long topk; + + topk = resk(res->base + res->size); + if (state->tom2k < topk) { + state->tom2k = topk; + } + if ((topk < 4*1024*1024) && (state->tomk < topk)) { + state->tomk = topk; + } +} + void amd_setup_mtrrs(void) { unsigned long address_bits; @@ -133,6 +147,9 @@ void amd_setup_mtrrs(void) state.tomk = state.tom2k = 0; search_global_resources( + IORESOURCE_MEM | IORESOURCE_UMA_FB, IORESOURCE_MEM | IORESOURCE_UMA_FB, + uma_fb_resource, &state); + search_global_resources( IORESOURCE_MEM | IORESOURCE_CACHEABLE, IORESOURCE_MEM | IORESOURCE_CACHEABLE, set_fixed_mtrr_resource, &state); @@ -144,13 +161,6 @@ void amd_setup_mtrrs(void) state.tomk = (state.tomk + TOP_MEM_MASK_KB) & ~TOP_MEM_MASK_KB; msr.hi = state.tomk >> 22; msr.lo = state.tomk << 10; - /* If UMA graphics is enabled, the frame buffer memory - * has been deducted from the size of memory below 4GB. - * When setting TOM, include UMA DRAM - */ - #if CONFIG_GFXUMA - msr.lo += uma_memory_size; - #endif wrmsr(TOP_MEM, msr); /* if DRAM above 4GB: set SYSCFG_MSR_TOM2En and SYSCFG_MSR_TOM2WB */ |