proxmox-mirrors/mirror_ubuntu-kernels
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_ubuntu-kernels.git synced 2026-01-25 22:20:52 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/amdgpu: Exclude PCI reset method for now.

Browse Source 
According to my investigation of the state of PCI
reset recently it's not working. The reason is
due to the fact the kernel PCI code rejects SBR
when there are more then one PF under same bridge
which we always have (at least AUDIO PF but usually
more) and that because SBR will reset all the PFS
and devices under the same bridge as you and you
cannot assume they support SBR.
Once we anble FLR support we can reenable this option as
FLR is doable on single PF and doens't have this
restriction.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Andrey Grodzovsky 2022-02-24 13:00:28 -05:00 committed by Alex Deucher
parent 158a05a0b8
commit 2656fd230d
2 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -1539,6 +1539,11 @@ static int amdgpu_device_check_arguments(struct amdgpu_device *adev)
amdgpu_sched_hw_submission = roundup_pow_of_two(amdgpu_sched_hw_submission);
}
if (amdgpu_reset_method < -1 || amdgpu_reset_method > 4) {
dev_warn(adev->dev, "invalid option for reset method, reverting to default\n");
amdgpu_reset_method = -1;
}
amdgpu_device_check_smu_prv_buffer_size(adev);
amdgpu_device_check_vm_size(adev);

4
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -837,9 +837,9 @@ module_param_named(tmz, amdgpu_tmz, int, 0444);
/**
* DOC: reset_method (int)
* GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco, 5 = pci)
* GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco)
*/
MODULE_PARM_DESC(reset_method, "GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco/bamaco, 5 = pci)");
MODULE_PARM_DESC(reset_method, "GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco/bamaco)");
module_param_named(reset_method, amdgpu_reset_method, int, 0444);
/**