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authorMark Brown <broonie@kernel.org>2024-02-19 16:58:41 +0000
committerMark Brown <broonie@kernel.org>2024-02-19 16:58:41 +0000
commitd68ce3aa8142333a96a071a9a0207f21c04e54cc (patch)
tree15754707ec571eb08c8d6308fe2459e46b8a5468 /drivers/gpu/drm/amd/amdgpu/soc15.c
parentec29a4d9b7c7329afc61e7932cb91e9b292b2b74 (diff)
parentb401b621758e46812da61fa58a67c3fd8d91de0d (diff)
regulator: Merge up v6.8-rc5
There are dependencies on the PWM fixes for some new work on the PWM driver.
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/soc15.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/soc15.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 15033efec2ba..c64c01e2944a 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -1298,10 +1298,32 @@ 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;
+ 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);
}