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drm/i915/color: Enable Plane Color Pipelines

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Expose color pipeline and add ability to program it.

v2: Set bit to enable multisegmented lut
v3: s/drm_color_lut_32/drm_color_lut32 (Simon)
v4: - Fix dsb programming
    - Remove multi-segment LUT, they will be added in later patches
    - Add pipeline only to TGL+
    - Code Refactor

Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patch.msgid.link/20251203085211.3663374-16-uma.shankar@intel.com
This commit is contained in:
Uma Shankar
2025-12-03 14:22:11 +05:30
committed by Jani Nikula
parent 65db7a1f9c
commit 860daa4b0d
2 changed files with 25 additions and 1 deletions
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5
drivers/gpu/drm/i915/display/intel_display.c
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@@ -7296,6 +7296,7 @@ static void intel_atomic_dsb_finish(struct intel_atomic_state *state,
struct intel_display *display = to_intel_display(state);
struct intel_crtc_state *new_crtc_state =
intel_atomic_get_new_crtc_state(state, crtc);
unsigned int size = new_crtc_state->plane_color_changed ? 8192 : 1024;
if (!new_crtc_state->use_flipq &&
!new_crtc_state->use_dsb &&
@@ -7306,10 +7307,12 @@ static void intel_atomic_dsb_finish(struct intel_atomic_state *state,
* Rough estimate:
* ~64 registers per each plane * 8 planes = 512
* Double that for pipe stuff and other overhead.
* ~4913 registers for 3DLUT
* ~200 color registers * 3 HDR planes
*/
new_crtc_state->dsb_commit = intel_dsb_prepare(state, crtc, INTEL_DSB_0,
new_crtc_state->use_dsb ||
new_crtc_state->use_flipq ? 1024 : 16);
new_crtc_state->use_flipq ? size : 16);
if (!new_crtc_state->dsb_commit) {
new_crtc_state->use_flipq = false;
new_crtc_state->use_dsb = false;