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drm/amdgpu/ras: Estimate RAS reservation when report capacity

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Add estimate of how much vram we need to reserve for RAS
when caculating the total available vram

Signed-off-by: Ce Sun <cesun102@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ce Sun 2026-06-11 17:42:48 +08:00 committed by Alex Deucher
parent b24b9f5f20
commit b492d22bc9
1 changed files with 25 additions and 1 deletions
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26
drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_ras_mgr.c
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@ -95,11 +95,35 @@ static int amdgpu_ras_mgr_init_aca_config(struct amdgpu_device *adev,
return 0;
}
static uint64_t amdgpu_ras_mgr_reserved_vram_size(struct amdgpu_device *adev)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
uint64_t reserved_pages_in_bytes = 0;
if (!con || (adev->flags & AMD_IS_APU))
return 0;
switch (amdgpu_ip_version(adev, MP0_HWIP, 0)) {
case IP_VERSION(13, 0, 6):
case IP_VERSION(13, 0, 12):
reserved_pages_in_bytes = RAS_RESERVED_VRAM_SIZE_DEFAULT;
break;
case IP_VERSION(13, 0, 14):
reserved_pages_in_bytes = (RAS_RESERVED_VRAM_SIZE_DEFAULT << 1);
break;
default:
break;
}
return reserved_pages_in_bytes;
}
static int amdgpu_ras_mgr_init_eeprom_config(struct amdgpu_device *adev,
struct ras_core_config *config)
{
struct ras_eeprom_config *eeprom_cfg = &config->eeprom_cfg;
uint64_t ras_reserved_vram_size;
ras_reserved_vram_size = amdgpu_ras_mgr_reserved_vram_size(adev);
eeprom_cfg->eeprom_sys_fn = &amdgpu_ras_eeprom_i2c_sys_func;
eeprom_cfg->eeprom_i2c_adapter = adev->pm.ras_eeprom_i2c_bus;
if (eeprom_cfg->eeprom_i2c_adapter) {
@ -133,7 +157,7 @@ static int amdgpu_ras_mgr_init_eeprom_config(struct amdgpu_device *adev,
div64_u64(adev->gmc.mc_vram_size, TYPICAL_ECC_BAD_PAGE_RATE);
else if (amdgpu_bad_page_threshold == WARN_NONSTOP_OVER_THRESHOLD)
eeprom_cfg->eeprom_record_threshold_count =
COUNT_BAD_PAGE_THRESHOLD(RAS_RESERVED_VRAM_SIZE_DEFAULT);
COUNT_BAD_PAGE_THRESHOLD(ras_reserved_vram_size);
else
eeprom_cfg->eeprom_record_threshold_count = amdgpu_bad_page_threshold;