In the normal S3 entry, the TOS cycle counter is not
reset during BIOS execution the _S3 method, so it doesn't
determine whether the _S3 method is executed exactly.
Howerver, the PM core performs the S3 suspend will set the
PM_SUSPEND_FLAG_FW_RESUME bit if all the devices suspend
successfully. Therefore, drivers can check the
pm_suspend_global_flags bit(1) to detect the S3 suspend
abort event.
Fixes: 4d58c599df75 ("drm/amdgpu: update suspend status
for aborting from deeper suspend")
Signed-off-by: Prike Liang <Prike.Liang@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/soc15.c | 26 +++++++++++++++++---------
1 file changed, 17 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 619933f252aa..d07cf8137bd7 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -578,16 +578,18 @@ soc15_asic_reset_method(struct amdgpu_device *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);
+ bool suspend_complete;
/* 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.
+ * 1) Only reset on APU side, dGPU hasn't checked yet.
+ * 2) S3 suspend aborted in the normal S3 suspend or
+ * performing pm core test.
*/
+ suspend_complete = !!(pm_suspend_global_flags &
+ PM_SUSPEND_FLAG_FW_RESUME);
+
if (adev->flags & AMD_IS_APU && adev->in_s3 &&
- sol_reg) {
+ !suspend_complete) {
adev->suspend_complete = false;
return true;
} else {
@@ -603,11 +605,17 @@ static int soc15_asic_reset(struct amdgpu_device *adev)
* 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))
+
+ if ((adev->apu_flags & AMD_APU_IS_PICASSO ||
+ !(adev->apu_flags & AMD_APU_IS_RAVEN)) &&
+ soc15_need_reset_on_resume(adev))
+ goto asic_reset;
+
+ if ((adev->apu_flags & AMD_APU_IS_RAVEN) ||
+ (adev->apu_flags & AMD_APU_IS_RAVEN2))
return 0;
+asic_reset:
switch (soc15_asic_reset_method(adev)) {
case AMD_RESET_METHOD_PCI:
dev_info(adev->dev, "PCI reset\n");
--
2.34.1
