diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1059-drm-amdgpu-check-if-we-need-to-reset-at-init-time-v2.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1059-drm-amdgpu-check-if-we-need-to-reset-at-init-time-v2.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1059-drm-amdgpu-check-if-we-need-to-reset-at-init-time-v2.patch b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1059-drm-amdgpu-check-if-we-need-to-reset-at-init-time-v2.patch new file mode 100644 index 00000000..16467be7 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1059-drm-amdgpu-check-if-we-need-to-reset-at-init-time-v2.patch @@ -0,0 +1,46 @@ +From 5fcc1dee443acd74bee3e2d7040e1cf2fe2b4dd7 Mon Sep 17 00:00:00 2001 +From: Alex Deucher <alexander.deucher@amd.com> +Date: Thu, 1 Nov 2018 00:02:01 -0500 +Subject: [PATCH 1059/2940] drm/amdgpu: check if we need to reset at init time + (v2) + +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 +Reviewed-by: Evan Quan <evan.quan@amd.com> +Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + 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 2c9617b7d20f..2d04830daba1 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +@@ -2599,6 +2599,17 @@ 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) { +-- +2.17.1 + |