diff options
Diffstat (limited to 'src/soc/intel/common/block/systemagent')
| -rw-r--r-- | src/soc/intel/common/block/systemagent/systemagent.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/soc/intel/common/block/systemagent/systemagent.c b/src/soc/intel/common/block/systemagent/systemagent.c index 3be65f919b..5be9fe1511 100644 --- a/src/soc/intel/common/block/systemagent/systemagent.c +++ b/src/soc/intel/common/block/systemagent/systemagent.c @@ -43,6 +43,11 @@ __attribute__((weak)) int soc_get_uncore_prmmr_base_and_mask(uint64_t *base, return -1; } +__attribute__((weak)) size_t soc_reserved_mmio_size(void) +{ + return 0; +} + /* * Add all known fixed MMIO ranges that hang off the host bridge/memory * controller device. @@ -141,6 +146,7 @@ static void sa_add_dram_resources(struct device *dev, int *resource_count) { uintptr_t base_k, touud_k; size_t dpr_size = 0, size_k; + size_t reserved_mmio_size; uint64_t sa_map_values[MAX_MAP_ENTRIES]; uintptr_t top_of_ram; int index = *resource_count; @@ -148,6 +154,9 @@ static void sa_add_dram_resources(struct device *dev, int *resource_count) if (IS_ENABLED(CONFIG_SA_ENABLE_DPR)) dpr_size = sa_get_dpr_size(); + /* Get SoC reserve memory size as per user selection */ + reserved_mmio_size = soc_reserved_mmio_size(); + top_of_ram = (uintptr_t)cbmem_top(); /* 0 - > 0xa0000 */ @@ -162,13 +171,14 @@ static void sa_add_dram_resources(struct device *dev, int *resource_count) sa_get_mem_map(dev, &sa_map_values[0]); - /* top_of_ram -> TSEG - DPR */ + /* top_of_ram -> TSEG - DPR - Intel Reserve Memory Size*/ base_k = top_of_ram; - size_k = sa_map_values[SA_TSEG_REG] - dpr_size - base_k; + size_k = sa_map_values[SA_TSEG_REG] - dpr_size - base_k + - reserved_mmio_size; mmio_resource(dev, index++, base_k / KiB, size_k / KiB); - /* TSEG - DPR -> BGSM */ - base_k = sa_map_values[SA_TSEG_REG] - dpr_size; + /* TSEG - DPR - Intel Reserve Memory Size -> BGSM */ + base_k = sa_map_values[SA_TSEG_REG] - dpr_size - reserved_mmio_size; size_k = sa_map_values[SA_BGSM_REG] - base_k; reserved_ram_resource(dev, index++, base_k / KiB, size_k / KiB); |