From 660261df61fb7fd972aae0f09b17c2b899f1e282 Mon Sep 17 00:00:00 2001 From: ganglxie Date: Wed, 2 Jul 2025 16:56:22 +0800 Subject: [PATCH 4382/5403] 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 Reviewed-by: Tao Zhou Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 1 + .../gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c | 28 +++++++++++++++++++ .../gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h | 2 ++ 3 files changed, 31 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 1c54b2e5a225..648a829559e1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -2512,6 +2512,7 @@ amdgpu_pci_remove(struct pci_dev *pdev) struct drm_device *dev = pci_get_drvdata(pdev); struct amdgpu_device *adev = drm_to_adev(dev); + amdgpu_ras_eeprom_check_and_recover(adev); amdgpu_xcp_dev_unplug(adev); amdgpu_gmc_prepare_nps_mode_change(adev); drm_dev_unplug(dev); 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; +} \ No newline at end of file diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h index 35c69ac3dbeb..ebfca4cb5688 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h @@ -161,6 +161,8 @@ void amdgpu_ras_debugfs_set_ret_size(struct amdgpu_ras_eeprom_control *control); int amdgpu_ras_eeprom_check(struct amdgpu_ras_eeprom_control *control); +void amdgpu_ras_eeprom_check_and_recover(struct amdgpu_device *adev); + extern const struct file_operations amdgpu_ras_debugfs_eeprom_size_ops; extern const struct file_operations amdgpu_ras_debugfs_eeprom_table_ops; -- 2.54.0