samsung_sm8750/android_kernel_samsung_sm8750
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Revert "drm/amd: Stop evicting resources on APUs in suspend"

Browse Source 
[ Upstream commit d0ce1aaa8531a4a4707711cab5721374751c51b0 ]

This reverts commit 3a9626c816db901def438dc2513622e281186d39.

This breaks S4 because we end up setting the s3/s0ix flags
even when we are entering s4 since prepare is used by both
flows.  The causes both the S3/s0ix and s4 flags to be set
which breaks several checks in the driver which assume they
are mutually exclusive.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3634
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit ce8f7d95899c2869b47ea6ce0b3e5bf304b2fff4)
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Alex Deucher
2025-05-01 13:00:16 -04:00
committed by Greg Kroah-Hartman
parent c1a4d21a15
commit 41ade94ad4
3 changed files with 2 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@@ -1459,11 +1459,9 @@ static inline int amdgpu_acpi_smart_shift_update(struct drm_device *dev,
#if defined(CONFIG_ACPI) && defined(CONFIG_SUSPEND)
bool amdgpu_acpi_is_s3_active(struct amdgpu_device *adev);
bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev);
void amdgpu_choose_low_power_state(struct amdgpu_device *adev);
#else
static inline bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev) { return false; }
static inline bool amdgpu_acpi_is_s3_active(struct amdgpu_device *adev) { return false; }
static inline void amdgpu_choose_low_power_state(struct amdgpu_device *adev) { }
#endif
#if defined(CONFIG_DRM_AMD_DC)

18
drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
View File

@@ -1525,22 +1525,4 @@ bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev)
#endif /* CONFIG_AMD_PMC */
}
/**
* amdgpu_choose_low_power_state
*
* @adev: amdgpu_device_pointer
*
* Choose the target low power state for the GPU
*/
void amdgpu_choose_low_power_state(struct amdgpu_device *adev)
{
if (adev->in_runpm)
return;
if (amdgpu_acpi_is_s0ix_active(adev))
adev->in_s0ix = true;
else if (amdgpu_acpi_is_s3_active(adev))
adev->in_s3 = true;
}
#endif /* CONFIG_SUSPEND */

11
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@@ -4167,15 +4167,13 @@ int amdgpu_device_prepare(struct drm_device *dev)
struct amdgpu_device *adev = drm_to_adev(dev);
int i, r;
amdgpu_choose_low_power_state(adev);
if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
return 0;
/* Evict the majority of BOs before starting suspend sequence */
r = amdgpu_device_evict_resources(adev);
if (r)
goto unprepare;
return r;
flush_delayed_work(&adev->gfx.gfx_off_delay_work);
@@ -4186,15 +4184,10 @@ int amdgpu_device_prepare(struct drm_device *dev)
continue;
r = adev->ip_blocks[i].version->funcs->prepare_suspend((void *)adev);
if (r)
goto unprepare;
return r;
}
return 0;
unprepare:
adev->in_s0ix = adev->in_s3 = adev->in_s4 = false;
return r;
}
/**