kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c, branch v6.6.25

drm/amdgpu: Fix potential out-of-bounds access in 'amdgpu_discovery_reg_base_init()'

2024-03-26T22:19:45+00:00

[ Upstream commit cdb637d339572398821204a1142d8d615668f1e9 ] The issue arises when the array 'adev->vcn.vcn_config' is accessed before checking if the index 'adev->vcn.num_vcn_inst' is within the bounds of the array. The fix involves moving the bounds check before the array access. This ensures that 'adev->vcn.num_vcn_inst' is within the bounds of the array before it is used as an index. Fixes the below: drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c:1289 amdgpu_discovery_reg_base_init() error: testing array offset 'adev->vcn.num_vcn_inst' after use. Fixes: a0ccc717c4ab ("drm/amdgpu/discovery: validate VCN and SDMA instances") Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amdgpu: add a retry for IP discovery init

2023-11-28T17:20:17+00:00

commit 3938eb956e383ef88b8fc7d556492336ebee52df upstream. AMD dGPUs have integrated FW that runs as soon as the device gets power and initializes the board (determines the amount of memory, provides configuration details to the driver, etc.). For direct PCIe attached cards this happens as soon as power is applied and normally completes well before the OS has even started loading. However, with hotpluggable ports like USB4, the driver needs to wait for this to complete before initializing the device. This normally takes 60-100ms, but could take longer on some older boards periodically due to memory training. Retry for up to a second. In the non-hotplug case, there should be no change in behavior and this should complete on the first try. v2: adjust test criteria v3: adjust checks for the masks, only enable on removable devices v4: skip bif_fb_en check Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2925 Reviewed-by: Mario Limonciello Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: update gc_info v2_1 from discovery

2023-08-31T21:53:19+00:00

Several new fields are exposed in gc_info v2_1 Signed-off-by: Le Ma Reviewed-by: Shiwu Zhang Reviewed-by: Hawking Zhang Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amdgpu: update mall info v2 from discovery

2023-08-31T21:53:08+00:00

Mall info v2 is introduced in ip discovery Signed-off-by: Le Ma Reviewed-by: Shiwu Zhang Reviewed-by: Hawking Zhang Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amdgpu/discovery: add ih 6.1.0 support

2023-08-07T20:35:42+00:00

Add to IP discovery table. Signed-off-by: Prike Liang Signed-off-by: Alex Deucher

drm/amdgpu/discovery: add smuio 14.0.0 support

2023-08-07T20:35:27+00:00

Add to IP discovery table. Signed-off-by: Prike Liang Signed-off-by: Alex Deucher

drm/amdgpu/discovery: add hdp 6.1.0 support

2023-08-07T20:35:23+00:00

Add to IP discovery table. Signed-off-by: Prike Liang Signed-off-by: Alex Deucher

drm/amdgpu/discovery: enable sdma6 for SDMA 6.1.0

2023-08-07T20:34:04+00:00

Add to IP discovery table. Signed-off-by: Prike Liang Signed-off-by: Alex Deucher

drm/amdgpu/discovery: enable PSP 14.0.0 support

2023-07-27T18:59:29+00:00

Add it to IP discovery. Signed-off-by: Li Ma Signed-off-by: Alex Deucher

drm/amdgpu: mark GC 9.4.3 experimental for now

2023-06-15T15:37:54+00:00

Mark as experimental for now until we get closer to production to avoid possible undesireable behavior when mixing newer boards with older kernels. Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher