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Commit b8c9fd5a authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon/atpx: track whether if this is a hybrid graphics platform 



hybrid graphics in this case refers to systems which use the new
platform d3 cold ACPI methods as opposed to ATPX for dGPU power
control.

Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Acked-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 522761cb

drivers/gpu/drm/radeon/radeon_atpx_handler.c

+8 −1
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ struct radeon_atpx_functions { 
struct radeon_atpx {

	acpi_handle handle;

	struct radeon_atpx_functions functions;

	bool is_hybrid;

};



static struct radeon_atpx_priv {
@@ -67,6 +68,10 @@ bool radeon_has_atpx_dgpu_power_cntl(void) { 
	return radeon_atpx_priv.atpx.functions.power_cntl;

}



bool radeon_is_atpx_hybrid(void) {

	return radeon_atpx_priv.atpx.is_hybrid;

}



/**

 * radeon_atpx_call - call an ATPX method

 *
@@ -190,9 +195,11 @@ static int radeon_atpx_validate(struct radeon_atpx *atpx) 
			  ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED))

		atpx->functions.power_cntl = true;



	atpx->is_hybrid = false;

	if (valid_bits & ATPX_MS_HYBRID_GFX_SUPPORTED) {

		printk("Hybrid Graphics, ATPX dGPU power cntl disabled\n");

		printk("ATPX Hybrid Graphics\n");

		atpx->functions.power_cntl = false;

		atpx->is_hybrid = true;

	}



	return 0;

drivers/gpu/drm/radeon/radeon_drv.c

+2 −0
Original line number Diff line number Diff line
@@ -164,10 +164,12 @@ void radeon_debugfs_cleanup(struct drm_minor *minor); 
void radeon_register_atpx_handler(void);

void radeon_unregister_atpx_handler(void);

bool radeon_has_atpx_dgpu_power_cntl(void);

bool radeon_is_atpx_hybrid(void);

#else

static inline void radeon_register_atpx_handler(void) {}

static inline void radeon_unregister_atpx_handler(void) {}

static inline bool radeon_has_atpx_dgpu_power_cntl(void) { return false; }

static inline bool radeon_is_atpx_hybrid(void) { return false; }

#endif



int radeon_no_wb;