@@ -3122,6 +3122,15 @@ static int i915_display_info(struct seq_file *m, void *unused)
intel_plane_info(m, crtc);
}
+ if (INTEL_GEN(dev_priv) >= 9 && pipe_config->base.active) {
+ uint64_t background = pipe_config->base.bgcolor;
+
+ seq_printf(m, "\tbackground color (10bpc): r=%x g=%x b=%x\n",
+ DRM_ARGB_RED(background, 10),
+ DRM_ARGB_GREEN(background, 10),
+ DRM_ARGB_BLUE(background, 10));
+ }
+
seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s \n",
yesno(!crtc->cpu_fifo_underrun_disabled),
yesno(!crtc->pch_fifo_underrun_disabled));
@@ -3860,6 +3860,28 @@ void intel_finish_reset(struct drm_i915_private *dev_priv)
clear_bit(I915_RESET_MODESET, &dev_priv->gpu_error.flags);
}
+static void
+skl_update_background_color(const struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ uint64_t propval = crtc_state->base.bgcolor;
+ uint32_t tmp;
+
+ /* Hardware is programmed with 10 bits of precision */
+ tmp = DRM_ARGB_RED(propval, 10) << 20
+ | DRM_ARGB_GREEN(propval, 10) << 10
+ | DRM_ARGB_BLUE(propval, 10);
+
+ /*
+ * Set CSC and gamma for bottom color to ensure background pixels
+ * receive the same color transformations as plane content.
+ */
+ tmp |= SKL_BOTTOM_COLOR_CSC_ENABLE | SKL_BOTTOM_COLOR_GAMMA_ENABLE;
+
+ I915_WRITE(SKL_BOTTOM_COLOR(crtc->pipe), tmp);
+}
+
static void intel_update_pipe_config(const struct intel_crtc_state *old_crtc_state,
const struct intel_crtc_state *new_crtc_state)
{
@@ -3895,15 +3917,8 @@ static void intel_update_pipe_config(const struct intel_crtc_state *old_crtc_sta
ironlake_pfit_disable(old_crtc_state);
}
- /*
- * We don't (yet) allow userspace to control the pipe background color,
- * so force it to black, but apply pipe gamma and CSC so that its
- * handling will match how we program our planes.
- */
if (INTEL_GEN(dev_priv) >= 9)
- I915_WRITE(SKL_BOTTOM_COLOR(crtc->pipe),
- SKL_BOTTOM_COLOR_GAMMA_ENABLE |
- SKL_BOTTOM_COLOR_CSC_ENABLE);
+ skl_update_background_color(new_crtc_state);
}
static void intel_fdi_normal_train(struct intel_crtc *crtc)
@@ -10986,6 +11001,8 @@ static int intel_crtc_atomic_check(struct drm_crtc *crtc,
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_crtc_state *pipe_config =
to_intel_crtc_state(crtc_state);
+ struct drm_crtc_state *old_crtc_state =
+ drm_atomic_get_old_crtc_state(crtc_state->state, crtc);
int ret;
bool mode_changed = needs_modeset(crtc_state);
@@ -11013,6 +11030,9 @@ static int intel_crtc_atomic_check(struct drm_crtc *crtc,
crtc_state->planes_changed = true;
}
+ if (crtc_state->bgcolor != old_crtc_state->bgcolor)
+ pipe_config->update_pipe = true;
+
ret = 0;
if (dev_priv->display.compute_pipe_wm) {
ret = dev_priv->display.compute_pipe_wm(pipe_config);
@@ -14160,6 +14180,9 @@ static int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
WARN_ON(drm_crtc_index(&intel_crtc->base) != intel_crtc->pipe);
+ if (INTEL_GEN(dev_priv) >= 9)
+ drm_crtc_add_bgcolor_property(&intel_crtc->base);
+
return 0;
fail:
@@ -15389,6 +15412,9 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state);
enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+ /* Always force bgcolor to solid black */
+ crtc_state->base.bgcolor = drm_argb(16, 0xFFFF, 0, 0, 0);
+
/* Clear any frame start delays used for debugging left by the BIOS */
if (crtc->active && !transcoder_is_dsi(cpu_transcoder)) {
i915_reg_t reg = PIPECONF(cpu_transcoder);
@@ -15415,9 +15441,7 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
* gamma and CSC to match how we program our planes.
*/
if (INTEL_GEN(dev_priv) >= 9)
- I915_WRITE(SKL_BOTTOM_COLOR(crtc->pipe),
- SKL_BOTTOM_COLOR_GAMMA_ENABLE |
- SKL_BOTTOM_COLOR_CSC_ENABLE);
+ skl_update_background_color(crtc_state);
}
/* Adjust the state of the output pipe according to whether we
Gen9+ platforms allow CRTC's to be programmed with a background/canvas color below the programmable planes. Let's expose this for use by compositors. v2: - Split out bgcolor sanitization and programming of csc/gamma bits to a separate patch that we can land before the ABI changes are ready to go in. (Ville) - Change a temporary variable name to be more consistent with other similar functions. (Ville) - Change register name to SKL_CANVAS for consistency with the CHV_CANVAS register. v3: - Switch register name back to SKL_BOTTOM_COLOR. (Ville) - Use non-_FW register write. (Ville) - Minor parameter rename for consistency. (Ville) v4: - Removed use of bgcolor_changed flag. Cc: dri-devel@lists.freedesktop.org Cc: wei.c.li@intel.com Cc: harish.krupo.kps@intel.com Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> --- drivers/gpu/drm/i915/i915_debugfs.c | 9 +++++++ drivers/gpu/drm/i915/intel_display.c | 46 +++++++++++++++++++++++++++--------- 2 files changed, 44 insertions(+), 11 deletions(-)