drm/i915: Use mode_config->cursor_width for cursor DDB allocation

Replace the hardcoded 256 with mode_config->cursor_width
when doing the cursor DDB allocation. Currently 256 is correct
for all SKL+, but this might change in the future. One less place
to change should that happen.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-8-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index 16d74ab3a2b5836d41650c5ca7fba1b62943f79b..54e9e0be019dd2118d9e7829c372851027893274 100644 (file)
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -635,6 +635,7 @@ skl_cursor_allocation(const struct intel_crtc_state *crtc_state,
 {
        struct intel_display *display = to_intel_display(crtc_state);
        struct intel_plane *plane = to_intel_plane(crtc_state->uapi.crtc->cursor);
+       const struct drm_mode_config *mode_config = &display->drm->mode_config;
        const struct drm_format_info *info;
        struct skl_wm_level wm = {};
        int ret, min_ddb_alloc = 0;
@@ -648,7 +649,7 @@ skl_cursor_allocation(const struct intel_crtc_state *crtc_state,
 
        info  = drm_get_format_info(display->drm, format, modifier);
 
-       ret = skl_compute_wm_params(crtc_state, 256,
+       ret = skl_compute_wm_params(crtc_state, mode_config->cursor_width,
                                    info, modifier, DRM_MODE_ROTATE_0,
                                    crtc_state->pixel_rate, &wp, 0, 0);
        drm_WARN_ON(display->drm, ret);