To deal with situations like kexec or GPU VM passthrough where the device may have been used previously without a proper GPU reset between. v2: rebase bug: https://bugs.freedesktop.org/show_bug.cgi?id=108585 bug: https://bugs.freedesktop.org/show_bug.cgi?id=108754 Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 1a558dc41ba6..8a61764e64cf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2550,6 +2550,17 @@ int amdgpu_device_init(struct amdgpu_device *adev, /* detect if we are with an SRIOV vbios */ amdgpu_device_detect_sriov_bios(adev); + /* check if we need to reset the asic + * E.g., driver was not cleanly unloaded previously, etc. + */ + if (amdgpu_asic_need_reset_on_init(adev)) { + r = amdgpu_asic_reset(adev); + if (r) { + dev_err(adev->dev, "asic reset on init failed\n"); + goto failed; + } + } + /* Post card if necessary */ if (amdgpu_device_need_post(adev)) { if (!adev->bios) { -- 2.20.1 _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
