Skip mode2 reset only for IMU enabled APUs when do S4.
This patch is to fix the regression issue
https://gitlab.freedesktop.org/drm/amd/-/issues/2483
It is generated by patch "2bedd3f21b30 drm/amdgpu: skip ASIC reset
for APUs when go to S4".
Signed-off-by: Tim Huang <tim.hu...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index 0f7cd3e8e00b..edaf3ded4a04 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -981,7 +981,12 @@ static bool amdgpu_atcs_pci_probe_handle(struct pci_dev
*pdev)
*/
bool amdgpu_acpi_should_gpu_reset(struct amdgpu_device *adev)
{
- if (adev->flags & AMD_IS_APU)
+ if ((adev->flags & AMD_IS_APU) &&
+ adev->gfx.imu.funcs) /* Not need to do mode2 reset for IMU enabled
APUs */
+ return false;
+
+ if ((adev->flags & AMD_IS_APU) &&
+ amdgpu_acpi_is_s3_active(adev))
return false;
if (amdgpu_sriov_vf(adev))
--
2.25.1
