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drm/amdgpu: check and drop invalid bad page records

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Check and drop invalid bad page records.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
YiPeng Chai 2026-05-12 15:09:52 +08:00 committed by Alex Deucher
parent 90b0cbcba1
commit 3999aa4a04
1 changed files with 27 additions and 0 deletions
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27
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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@ -3093,6 +3093,25 @@ static int amdgpu_ras_mca2pa(struct amdgpu_device *adev,
return -EINVAL;
}
static bool __check_record_in_range(struct amdgpu_device *adev,
struct eeprom_table_record *bps, int count)
{
int i;
for (i = 0; i < count; i++) {
if (bps[i].retired_page >=
(adev->gmc.real_vram_size >> AMDGPU_GPU_PAGE_SHIFT)) {
dev_warn(adev->dev,
"Recorded address out of range: 0x%llx, 0x%llx, 0x%x, 0x%x\n",
bps[i].address, bps[i].retired_page,
bps[i].mem_channel, bps[i].mcumc_id);
return false;
}
}
return true;
}
static int __amdgpu_ras_restore_bad_pages(struct amdgpu_device *adev,
struct eeprom_table_record *bps, int count)
{
@ -3100,6 +3119,9 @@ static int __amdgpu_ras_restore_bad_pages(struct amdgpu_device *adev,
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
struct ras_err_handler_data *data = con->eh_data;
if (!__check_record_in_range(adev, bps, count))
return 0;
for (j = 0; j < count; j++) {
if (!data->space_left &&
amdgpu_ras_realloc_eh_data_space(adev, data, 256)) {
@ -5641,6 +5663,11 @@ int amdgpu_ras_reserve_page(struct amdgpu_device *adev, uint64_t pfn)
uint64_t start = pfn << AMDGPU_GPU_PAGE_SHIFT;
int ret = 0;
if (pfn >= (adev->gmc.real_vram_size >> AMDGPU_GPU_PAGE_SHIFT)) {
dev_warn(adev->dev, "Ignoring out-of-range bad page 0x%llx", start);
return 0;
}
if (amdgpu_ras_check_critical_address(adev, start))
return 0;