diff options
| author | ganglxie <[email protected]> | 2025-07-02 08:56:22 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2025-07-15 18:07:53 +0000 |
| commit | 660261df61fb7fd972aae0f09b17c2b899f1e282 (patch) | |
| tree | 7347e908afa587c4e9969a5d196d0cf145610f51 /drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c | |
| parent | drm/amd/display: Disable CRTC degamma LUT for DCN401 (diff) | |
| download | kernel-660261df61fb7fd972aae0f09b17c2b899f1e282.tar.gz kernel-660261df61fb7fd972aae0f09b17c2b899f1e282.zip | |
drm/amdgpu: refine eeprom data check
add eeprom data checksum check before driver unload. reset eeprom
and save correct data to eeprom when check failed
Signed-off-by: ganglxie <[email protected]>
Reviewed-by: Tao Zhou <[email protected]>
Reviewed-by: Lijo Lazar <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c index 54838746f97d..9bda9ad13f88 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c @@ -1531,3 +1531,31 @@ int amdgpu_ras_eeprom_check(struct amdgpu_ras_eeprom_control *control) return res < 0 ? res : 0; } + +void amdgpu_ras_eeprom_check_and_recover(struct amdgpu_device *adev) +{ + struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); + struct amdgpu_ras_eeprom_control *control; + int res; + + if (!__is_ras_eeprom_supported(adev) || !ras) + return; + control = &ras->eeprom_control; + if (!control->is_eeprom_valid) + return; + res = __verify_ras_table_checksum(control); + if (res) { + dev_warn(adev->dev, + "RAS table incorrect checksum or error:%d, try to recover\n", + res); + if (!amdgpu_ras_eeprom_reset_table(control)) + if (!amdgpu_ras_save_bad_pages(adev, NULL)) + if (!__verify_ras_table_checksum(control)) { + dev_info(adev->dev, "RAS table recovery succeed\n"); + return; + } + dev_err(adev->dev, "RAS table recovery failed\n"); + control->is_eeprom_valid = false; + } + return; +}
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