Commit 7a40aac1 authored by José Roberto de Souza's avatar José Roberto de Souza
Browse files

drm/i915/display: Check if FBC is fused off 



Check if FBC is fused off and handle it.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Martin Peres <martin.peres@linux.intel.com>
Reviewed-by: default avatarRamalingam C <ramalingam.c@intel.com>
Signed-off-by: default avatarJosé Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191026001323.216052-3-jose.souza@intel.com
parent 74393109

drivers/gpu/drm/i915/i915_reg.h

+1 −0
Original line number Diff line number Diff line
@@ -7743,6 +7743,7 @@ enum { 
#define   CNL_DDI_CLOCK_REG_ACCESS_ON	(1 << 7)



#define SKL_DFSM			_MMIO(0x51000)

#define   SKL_DFSM_DISPLAY_PM_DISABLE	(1 << 27)

#define   SKL_DFSM_DISPLAY_HDCP_DISABLE	(1 << 25)

#define   SKL_DFSM_CDCLK_LIMIT_MASK	(3 << 23)

#define   SKL_DFSM_CDCLK_LIMIT_675	(0 << 23)

drivers/gpu/drm/i915/intel_device_info.c

+3 −0
Original line number Diff line number Diff line
@@ -984,6 +984,9 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv) 


		if (dfsm & SKL_DFSM_DISPLAY_HDCP_DISABLE)

			info->display.has_hdcp = 0;



		if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE)

			info->display.has_fbc = 0;

	}



	/* Initialize slice/subslice/EU info */

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