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authorEvan Quan <evan.quan@amd.com>2020-04-30 06:24:02 +0300
committerAlex Deucher <alexander.deucher@amd.com>2020-05-08 21:44:11 +0300
commit1fe48ec08d9f2e26d893a6c05bd6c99a3490f9ef (patch)
tree11d8db21590c7d09582d35d1479ed89fa65d7cc4 /drivers/gpu
parentee79be181aee2f59522fdf81c580aaed5753e3af (diff)
downloadlinux-1fe48ec08d9f2e26d893a6c05bd6c99a3490f9ef.tar.xz
drm/amdgpu: drop unnecessary cancel_delayed_work_sync on PG ungate
As this is already properly handled in amdgpu_gfx_off_ctrl(). In fact, this unnecessary cancel_delayed_work_sync may leave a small time window for race condition and is dangerous. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c6
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c12
2 files changed, 4 insertions, 14 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 0c98f705da0e..d35ac7407c8e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -4353,11 +4353,7 @@ static int gfx_v10_0_set_powergating_state(void *handle,
switch (adev->asic_type) {
case CHIP_NAVI10:
case CHIP_NAVI14:
- if (!enable) {
- amdgpu_gfx_off_ctrl(adev, false);
- cancel_delayed_work_sync(&adev->gfx.gfx_off_delay_work);
- } else
- amdgpu_gfx_off_ctrl(adev, true);
+ amdgpu_gfx_off_ctrl(adev, enable);
break;
default:
break;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 0c390485bc10..0127f1ce16e6 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -5025,10 +5025,9 @@ static int gfx_v9_0_set_powergating_state(void *handle,
switch (adev->asic_type) {
case CHIP_RAVEN:
case CHIP_RENOIR:
- if (!enable) {
+ if (!enable)
amdgpu_gfx_off_ctrl(adev, false);
- cancel_delayed_work_sync(&adev->gfx.gfx_off_delay_work);
- }
+
if (adev->pg_flags & AMD_PG_SUPPORT_RLC_SMU_HS) {
gfx_v9_0_enable_sck_slow_down_on_power_up(adev, true);
gfx_v9_0_enable_sck_slow_down_on_power_down(adev, true);
@@ -5052,12 +5051,7 @@ static int gfx_v9_0_set_powergating_state(void *handle,
amdgpu_gfx_off_ctrl(adev, true);
break;
case CHIP_VEGA12:
- if (!enable) {
- amdgpu_gfx_off_ctrl(adev, false);
- cancel_delayed_work_sync(&adev->gfx.gfx_off_delay_work);
- } else {
- amdgpu_gfx_off_ctrl(adev, true);
- }
+ amdgpu_gfx_off_ctrl(adev, enable);
break;
default:
break;