From 63660592dc50e9a94c60411fb58b6436755eea01 Mon Sep 17 00:00:00 2001 From: Arthur Heymans Date: Thu, 6 Jan 2022 12:28:44 +0100 Subject: soc/intel/xeon_sp: Don't handle FSP reserved memory explicitly FSP reserved memory is allocated inside cbmem which already gets marked as a reserved memory region, so there is no need to do this explicitly. Change-Id: I39ec70bd9404d7bc2a4228c4364e4cc86f95d7c1 Signed-off-by: Arthur Heymans Reviewed-on: https://review.coreboot.org/c/coreboot/+/60838 Tested-by: build bot (Jenkins) Reviewed-by: Jonathan Zhang --- src/soc/intel/xeon_sp/uncore.c | 34 +++------------------------------- 1 file changed, 3 insertions(+), 31 deletions(-) diff --git a/src/soc/intel/xeon_sp/uncore.c b/src/soc/intel/xeon_sp/uncore.c index e51efbd693..29c45cdf74 100644 --- a/src/soc/intel/xeon_sp/uncore.c +++ b/src/soc/intel/xeon_sp/uncore.c @@ -13,6 +13,7 @@ #include #include #include +#include struct map_entry { uint32_t reg; @@ -165,10 +166,8 @@ static void configure_dpr(struct device *dev) static void mc_add_dram_resources(struct device *dev, int *res_count) { - struct range_entry fsp_mem; uint64_t base_kb; uint64_t size_kb; - uint64_t top_of_ram; uint64_t mc_values[NUM_MAP_ENTRIES]; struct resource *resource; int index = *res_count; @@ -177,49 +176,22 @@ static void mc_add_dram_resources(struct device *dev, int *res_count) if (dev->bus->secondary != 0) return; - fsp_find_reserved_memory(&fsp_mem); - /* Read in the MAP registers and report their values. */ mc_read_map_entries(dev, &mc_values[0]); mc_report_map_entries(dev, &mc_values[0]); - top_of_ram = range_entry_base(&fsp_mem) - 1; - printk(BIOS_SPEW, "cbmem_top: 0x%lx, fsp range: [0x%llx - 0x%llx], top_of_ram: 0x%llx\n", - (uintptr_t) cbmem_top(), range_entry_base(&fsp_mem), - range_entry_end(&fsp_mem), top_of_ram); - /* Conventional Memory (DOS region, 0x0 to 0x9FFFF) */ base_kb = 0; size_kb = (0xa0000 >> 10); LOG_MEM_RESOURCE("legacy_ram", dev, index, base_kb, size_kb); ram_resource(dev, index++, base_kb, size_kb); - /* 1MB -> top_of_ram i.e., fsp_mem_base+1*/ + /* 1MB -> top_of_ram i.e., cbmem_top */ base_kb = (0x100000 >> 10); - size_kb = (top_of_ram - 0xfffff) >> 10; + size_kb = ((uintptr_t)cbmem_top() - 1 * MiB) >> 10; LOG_MEM_RESOURCE("low_ram", dev, index, base_kb, size_kb); ram_resource(dev, index++, base_kb, size_kb); - /* fsp_mem_base -> cbmem_top */ - base_kb = top_of_ram / KiB; - size_kb = ((uintptr_t)cbmem_top() - top_of_ram) / KiB; - reserved_ram_resource(dev, index++, base_kb, size_kb); - - /* - * FSP meomoy, CBMem regions are already added as reserved - * Add TSEG and MESEG Regions as reserved memory - * src/drivers/intel/fsp2_0/memory_init.c sets CBMEM reserved size - * arch_upd->BootLoaderTolumSize = cbmem_overhead_size(); == 2 * CBMEM_ROOT_MIN_SIZE - * typically 0x2000 - * Example config: - * FSP_RESERVED_MEMORY_RESOURCE_HOB - * FspReservedMemoryResource Base : 6FBFE000 - * FspReservedMemoryResource Size : 400000 - * FSP_BOOT_LOADER_TOLUM_HOB - * FspBootLoaderTolum Base : 6FFFE000 - * FspBootLoaderTolum Size : 2000 - */ - /* Mark TSEG/SMM region as reserved */ base_kb = (mc_values[TSEG_BASE_REG] >> 10); size_kb = (mc_values[TSEG_LIMIT_REG] - mc_values[TSEG_BASE_REG] + 1) >> 10; -- cgit v1.2.3