From aeb47df35742376f2fa13ee39039f1873daee626 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Fri, 4 Feb 2022 09:20:49 +0200 Subject: drm/i915: Clean up the bigjoiner state copy logic MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently the bigjoiner state copy logic is kind of a byzantine mess. Clean it up to operate in the following manner during a full modeset: 1) master uapi -> hw state copy 2) master hw -> slave hw state copy And during a non-modeset update we do: 1) master uapi -> hw state light copy 2) master hw -> slave hw state light copy I think that is now easier to reason about since we never do any kind of master uapi -> slave hw state copy short circuit that could happen previously. Obviously this does now depend on the master uapi->hw copy always happening before the master hw -> slave hw copy, but that is guaranteed by the fact that we always add both crtcs to the state early, the crtcs are registered in pipe order (so the compute_config loop happens in pipe order), and the hardware requires the master pipe has to be lower than the slave pipe as well. And for good measure we shall add a check+WARN for this before doing the bigjoiner crtc assignment. v2: Fix uapi.ctm vs. hw.ctm copy-paste fail Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20220204072049.1610-1-ville.syrjala@linux.intel.com Reviewed-by: Manasi Navare --- drivers/gpu/drm/i915/display/intel_atomic.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/gpu/drm/i915/display/intel_atomic.h') diff --git a/drivers/gpu/drm/i915/display/intel_atomic.h b/drivers/gpu/drm/i915/display/intel_atomic.h index d2700c74c9da..1dc439983dd9 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.h +++ b/drivers/gpu/drm/i915/display/intel_atomic.h @@ -44,8 +44,6 @@ struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc); void intel_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state); void intel_crtc_free_hw_state(struct intel_crtc_state *crtc_state); -void intel_crtc_copy_color_blobs(struct intel_crtc_state *crtc_state, - const struct intel_crtc_state *from_crtc_state); struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev); void intel_atomic_state_free(struct drm_atomic_state *state); void intel_atomic_state_clear(struct drm_atomic_state *state); -- cgit v1.2.3