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path: root/drivers/gpu/drm/amd/amdgpu/soc15.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/soc15.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/soc15.c31
1 files changed, 29 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 15033efec2ba..1c614451dead 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -574,11 +574,34 @@ 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)) {
@@ -1302,6 +1325,10 @@ static int soc15_common_resume(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ if (soc15_need_reset_on_resume(adev)) {
+ dev_info(adev->dev, "S3 suspend abort case, let's reset ASIC.\n");
+ soc15_asic_reset(adev);
+ }
return soc15_common_hw_init(adev);
}