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authorEvan Quan <evan.quan@amd.com>2020-07-06 06:03:00 +0300
committerAlex Deucher <alexander.deucher@amd.com>2020-07-21 22:37:37 +0300
commit22f2447c04728665a26c63981db05d901537b833 (patch)
treec042bf8b4b8817dcbf0cd9a228f3757ac9708234 /drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
parent443c7f3c3641c790a7c306f9d9d54a2a5e3021b9 (diff)
downloadlinux-22f2447c04728665a26c63981db05d901537b833.tar.xz
drm/amd/powerplay: widely share the API for data table retrieving
Considering the data table retrieving can be more widely shared, amdgpu_atombios.c is the right place. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
index c687432da426..29f767e026e4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
@@ -2036,3 +2036,20 @@ int amdgpu_atombios_init(struct amdgpu_device *adev)
return 0;
}
+int amdgpu_atombios_get_data_table(struct amdgpu_device *adev,
+ uint32_t table,
+ uint16_t *size,
+ uint8_t *frev,
+ uint8_t *crev,
+ uint8_t **addr)
+{
+ uint16_t data_start;
+
+ if (!amdgpu_atom_parse_data_header(adev->mode_info.atom_context, table,
+ size, frev, crev, &data_start))
+ return -EINVAL;
+
+ *addr = (uint8_t *)adev->mode_info.atom_context->bios + data_start;
+
+ return 0;
+}