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drm/i915/dsb: Allow vblank synchronized DSB execution

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

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118163040.29808-7-ville.syrjala@linux.intel.com
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
This commit is contained in:
Ville Syrjälä 2023-01-18 18:30:33 +02:00
parent 1f89b94bcf
commit d5f84973ac
3 changed files with 6 additions and 3 deletions
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2
drivers/gpu/drm/i915/display/intel_color.c
View File

@ -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);
}
}

4
drivers/gpu/drm/i915/display/intel_dsb.c
View File

@ -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));

3
drivers/gpu/drm/i915/display/intel_dsb.h
View File

@ -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