Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 511c4348 authored by Hawking Zhang's avatar Hawking Zhang Committed by Alex Deucher
Browse files

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: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ed606ca3

drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c

+31 −0
Original line number Diff line number Diff line
@@ -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;

};

drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h

+1 −0
Original line number Diff line number Diff line
@@ -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