Commit f52a2b8b authored by Mario Limonciello's avatar Mario Limonciello Committed by Alex Deucher
Browse files

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: default avatarMario Limonciello <mario.limonciello@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a6ed2035

drivers/gpu/drm/amd/amdgpu/amdgpu.h

+2 −0
Original line number Diff line number Diff line
@@ -1421,9 +1421,11 @@ 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,

drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c

+13 −0
Original line number Diff line number Diff line
@@ -1032,6 +1032,19 @@ 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

 *