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| author |   Mario Limonciello <mario.limonciello@amd.com> | 2022-01-25 21:35:09 -0600 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-02-02 18:26:30 -0500 |
| commit | 18b66ace6b3acb01b645d2fbbd571f66b2705c71 (patch) | |
| tree | e33edff0411b1cae5ea94279750f516782512a45 | |
| parent | drm/amd: Warn users about potential s0ix problems (diff) | |
| download | linux-dev-18b66ace6b3acb01b645d2fbbd571f66b2705c71.tar.xz linux-dev-18b66ace6b3acb01b645d2fbbd571f66b2705c71.zip | |
drm/amd: add support to check whether the system is set to s3
This will be used to help make decisions on what to do in
misconfigured systems.
v2: squash in semicolon fix from Stephen Rothwell
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 13 |
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 65d2799f5a87..92f757c007d5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1420,9 +1420,11 @@ static inline int amdgpu_acpi_smart_shift_update(struct drm_device *dev, #endif #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); #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; } #endif int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c index b19d40751802..0e12315fa0cb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -1033,6 +1033,19 @@ void amdgpu_acpi_detect(void) #if IS_ENABLED(CONFIG_SUSPEND) /** + * amdgpu_acpi_is_s3_active + * + * @adev: amdgpu_device_pointer + * + * returns true if supported, false if not. + */ +bool amdgpu_acpi_is_s3_active(struct amdgpu_device *adev) +{ + return !(adev->flags & AMD_IS_APU) || + (pm_suspend_target_state == PM_SUSPEND_MEM); +} + +/** * amdgpu_acpi_is_s0ix_active * * @adev: amdgpu_device_pointer |