Commit d5f84973 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915/dsb: Allow vblank synchronized DSB execution 



Allow the caller to ask for the DSB commands to execute
during vblank.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118163040.29808-7-ville.syrjala@linux.intel.com


Reviewed-by: default avatarAnimesh Manna <animesh.manna@intel.com>
parent 1f89b94b

drivers/gpu/drm/i915/display/intel_color.c

+1 −1
Original line number Diff line number Diff line
@@ -1258,7 +1258,7 @@ static void icl_load_luts(const struct intel_crtc_state *crtc_state) 


	if (crtc_state->dsb) {

		intel_dsb_finish(crtc_state->dsb);

		intel_dsb_commit(crtc_state->dsb);

		intel_dsb_commit(crtc_state->dsb, false);

		intel_dsb_wait(crtc_state->dsb);

	}

}

drivers/gpu/drm/i915/display/intel_dsb.c

+3 −1
Original line number Diff line number Diff line
@@ -221,10 +221,11 @@ void intel_dsb_finish(struct intel_dsb *dsb) 
/**

 * intel_dsb_commit() - Trigger workload execution of DSB.

 * @dsb: DSB context

 * @wait_for_vblank: wait for vblank before executing

 *

 * This function is used to do actual write to hardware using DSB.

 */

void intel_dsb_commit(struct intel_dsb *dsb)

void intel_dsb_commit(struct intel_dsb *dsb, bool wait_for_vblank)

{

	struct intel_crtc *crtc = dsb->crtc;

	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
@@ -242,6 +243,7 @@ void intel_dsb_commit(struct intel_dsb *dsb) 
	}



	intel_de_write(dev_priv, DSB_CTRL(pipe, dsb->id),

		       (wait_for_vblank ? DSB_WAIT_FOR_VBLANK : 0) |

		       DSB_ENABLE);

	intel_de_write(dev_priv, DSB_HEAD(pipe, dsb->id),

		       i915_ggtt_offset(dsb->vma));

drivers/gpu/drm/i915/display/intel_dsb.h

+2 −1
Original line number Diff line number Diff line
@@ -19,7 +19,8 @@ void intel_dsb_finish(struct intel_dsb *dsb); 
void intel_dsb_cleanup(struct intel_dsb *dsb);

void intel_dsb_reg_write(struct intel_dsb *dsb,

			 i915_reg_t reg, u32 val);

void intel_dsb_commit(struct intel_dsb *dsb);

void intel_dsb_commit(struct intel_dsb *dsb,

		      bool wait_for_vblank);

void intel_dsb_wait(struct intel_dsb *dsb);



#endif