kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c, branch linux-6.9.y

drm/amdgpu: check PS, WS index

2024-01-15T23:35:37+00:00

Theoretically, it would be possible for a buggy or malicious VBIOS to overwrite past the bounds of the passed parameters (or its own workspace); add bounds checking to prevent this from happening. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3093 Signed-off-by: Alexander Richards Signed-off-by: Alex Deucher

Revert "drm/amdgpu: Report vbios version instead of PN"

2023-09-20T21:26:15+00:00

This reverts commit 7748ce5b69581325cae40c2134088820f0957902. vbios_version sysfs node is used to identify Part Number also. Revert to the same so that it doesn't break scripts/software which parse this. Signed-off-by: Lijo Lazar Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: Report vbios version instead of PN

2023-08-07T21:14:09+00:00

Report VBIOS version in vbios_version sysfs node instead of part number. Part number remains constant for a SKU type. Signed-off-by: Lijo Lazar Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amd: Avoid reading the VBIOS part number twice

2023-07-21T20:52:24+00:00

The VBIOS part number is read both in amdgpu_atom_parse() as well as in atom_get_vbios_pn() and stored twice in the `struct atom_context` structure. Remove the first unnecessary read and move the `pr_info` line from that read into the second. v2: squash in unused variable removal Signed-off-by: Mario Limonciello Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Add vbios attribute only if supported

2023-06-23T19:35:26+00:00

Not all devices carry VBIOS version information. Add the device attribute only if supported. Signed-off-by: Lijo Lazar Reviewed-by: Le Ma Signed-off-by: Alex Deucher

drm/amdgpu: wrap those atombios APIs used by SI under CONFIG_DRM_AMDGPU_SI

2022-01-14T22:51:15+00:00

No need to compile them on CONFIG_DRM_AMDGPU_SI disabled. Signed-off-by: Evan Quan Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amd/display: update bios scratch when setting backlight

2021-11-24T19:06:54+00:00

Update the bios scratch register when updating the backlight level. Some platforms apparently read this scratch register and do additional operations in their hotkey handlers. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1518 Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

Merge drm/drm-next into drm-misc-next

2021-05-22T05:17:05+00:00

Backmerging from drm/drm-next to the patches for AMD devices for v5.14. Signed-off-by: Thomas Zimmermann

drm/amdgpu: Convert driver sysfs attributes to static attributes

2021-05-20T03:50:27+00:00

This allows to remove explicit creation and destruction of those attrs and by this avoids warnings on device finalizing post physical device extraction. v5: Use newly added pci_driver.dev_groups directly Signed-off-by: Andrey Grodzovsky Acked-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20210512142648.666476-9-andrey.grodzovsky@amd.com

drm/amdgpu: add atomfirmware helper function to query fw cap

2021-05-20T02:30:03+00:00

Fimware capability was changed from 16 bits to 32 bits for atomfirmware. add helper funciton to query firmware capability and cache the value at early stage. Signed-off-by: Hawking Zhang Reviewed-by: Alex Deucher Reviewed-by: John Clements Signed-off-by: Alex Deucher