diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/1577-drm-amdgpu-add-atomfirmware-helper-function-to-query.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/1577-drm-amdgpu-add-atomfirmware-helper-function-to-query.patch | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1577-drm-amdgpu-add-atomfirmware-helper-function-to-query.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1577-drm-amdgpu-add-atomfirmware-helper-function-to-query.patch new file mode 100644 index 00000000..22227a4a --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1577-drm-amdgpu-add-atomfirmware-helper-function-to-query.patch @@ -0,0 +1,71 @@ +From ee37e58d1bc415f156fa4e27a02b5d24188fd8d7 Mon Sep 17 00:00:00 2001 +From: Hawking Zhang <Hawking.Zhang@amd.com> +Date: Thu, 7 Mar 2019 10:14:13 +0800 +Subject: [PATCH 1577/2940] drm/amdgpu: add atomfirmware helper function to + query ecc status + +ecc default status (enabled or disabled) could be get from umc_config field in umc_info table + +Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> +Reviewed-by: Alex Deucher <alexander.deucher@amd.com> +--- + .../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 31 +++++++++++++++++++ + .../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h | 1 + + 2 files changed, 32 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c +index ea917d640688..742af0ed94d7 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c +@@ -236,6 +236,37 @@ int amdgpu_atomfirmware_get_vram_type(struct amdgpu_device *adev) + return 0; + } + ++/* ++ * Return true if vbios enabled ecc by default, if umc info table is available ++ * or false if ecc is not enabled or umc info table is not available ++ */ ++bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev) ++{ ++ struct amdgpu_mode_info *mode_info = &adev->mode_info; ++ int index; ++ u16 data_offset, size; ++ union umc_info *umc_info; ++ u8 frev, crev; ++ bool ecc_default_enabled = false; ++ ++ index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1, ++ umc_info); ++ ++ if (amdgpu_atom_parse_data_header(mode_info->atom_context, ++ index, &size, &frev, &crev, &data_offset)) { ++ /* support umc_info 3.1+ */ ++ if ((frev == 3 && crev >= 1) || (frev > 3)) { ++ umc_info = (union umc_info *) ++ (mode_info->atom_context->bios + data_offset); ++ ecc_default_enabled = ++ (le32_to_cpu(umc_info->v31.umc_config) & ++ UMC_CONFIG__DEFAULT_MEM_ECC_ENABLE) ? true : false; ++ } ++ } ++ ++ return ecc_default_enabled; ++} ++ + union firmware_info { + struct atom_firmware_info_v3_1 v31; + }; +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h +index f8ea77d4e863..6da079e60619 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h +@@ -33,5 +33,6 @@ int amdgpu_atomfirmware_get_vram_width(struct amdgpu_device *adev); + int amdgpu_atomfirmware_get_vram_type(struct amdgpu_device *adev); + int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev); + int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev); ++bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev); + + #endif +-- +2.17.1 + |