This is a note to let you know that I've just added the patch titled
drm/amdgpu: Enable gpu reset for S3 abort cases on Raven series
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-enable-gpu-reset-for-s3-abort-cases-on-ra.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 04f5bffe61ef4eaed78063f8b4eb29a2581f9bbb
Author: Prike Liang <Prike.Liang@xxxxxxx>
Date: Thu Feb 22 20:56:59 2024 +0800
drm/amdgpu: Enable gpu reset for S3 abort cases on Raven series
[ Upstream commit c671ec01311b4744b377f98b0b4c6d033fe569b3 ]
Currently, GPU resets can now be performed successfully on the Raven
series. While GPU reset is required for the S3 suspend abort case.
So now can enable gpu reset for S3 abort cases on the Raven series.
Signed-off-by: Prike Liang <Prike.Liang@xxxxxxx>
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 489c89465c78b..c373a2a3248eb 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -584,11 +584,34 @@ soc15_asic_reset_method(struct amdgpu_device *adev)
return AMD_RESET_METHOD_MODE1;
}
+static bool soc15_need_reset_on_resume(struct amdgpu_device *adev)
+{
+ u32 sol_reg;
+
+ sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
+
+ /* Will reset for the following suspend abort cases.
+ * 1) Only reset limit on APU side, dGPU hasn't checked yet.
+ * 2) S3 suspend abort and TOS already launched.
+ */
+ if (adev->flags & AMD_IS_APU && adev->in_s3 &&
+ !adev->suspend_complete &&
+ sol_reg)
+ return true;
+
+ return false;
+}
+
static int soc15_asic_reset(struct amdgpu_device *adev)
{
/* original raven doesn't have full asic reset */
- if ((adev->apu_flags & AMD_APU_IS_RAVEN) ||
- (adev->apu_flags & AMD_APU_IS_RAVEN2))
+ /* On the latest Raven, the GPU reset can be performed
+ * successfully. So now, temporarily enable it for the
+ * S3 suspend abort case.
+ */
+ if (((adev->apu_flags & AMD_APU_IS_RAVEN) ||
+ (adev->apu_flags & AMD_APU_IS_RAVEN2)) &&
+ !soc15_need_reset_on_resume(adev))
return 0;
switch (soc15_asic_reset_method(adev)) {
@@ -1285,24 +1308,6 @@ static int soc15_common_suspend(void *handle)
return soc15_common_hw_fini(adev);
}
-static bool soc15_need_reset_on_resume(struct amdgpu_device *adev)
-{
- u32 sol_reg;
-
- sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
-
- /* Will reset for the following suspend abort cases.
- * 1) Only reset limit on APU side, dGPU hasn't checked yet.
- * 2) S3 suspend abort and TOS already launched.
- */
- if (adev->flags & AMD_IS_APU && adev->in_s3 &&
- !adev->suspend_complete &&
- sol_reg)
- return true;
-
- return false;
-}
-
static int soc15_common_resume(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
