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Commit 2f5af82e authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu/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 410ca8d1

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

+2 −0
Original line number Diff line number Diff line
@@ -2401,10 +2401,12 @@ bool amdgpu_device_is_px(struct drm_device *dev); 
void amdgpu_register_atpx_handler(void);

void amdgpu_unregister_atpx_handler(void);

bool amdgpu_has_atpx_dgpu_power_cntl(void);

bool amdgpu_is_atpx_hybrid(void);

#else

static inline void amdgpu_register_atpx_handler(void) {}

static inline void amdgpu_unregister_atpx_handler(void) {}

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

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

#endif



/*

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

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

	acpi_handle handle;

	struct amdgpu_atpx_functions functions;

	bool is_hybrid;

};



static struct amdgpu_atpx_priv {
@@ -68,6 +69,10 @@ bool amdgpu_has_atpx_dgpu_power_cntl(void) { 
	return amdgpu_atpx_priv.atpx.functions.power_cntl;

}



bool amdgpu_is_atpx_hybrid(void) {

	return amdgpu_atpx_priv.atpx.is_hybrid;

}



/**

 * amdgpu_atpx_call - call an ATPX method

 *
@@ -192,9 +197,11 @@ static int amdgpu_atpx_validate(struct amdgpu_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;