From f7abfe8b281991c66406c42c1a6c6c9ee0daa0ff Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 13 Sep 2010 14:19:16 +0100 Subject: [PATCH] drm/i915: Fix an overlay regression from 7e7d76c When separating out the prepare/commit into its own separate functions we overlooked that the intel_crtc->dpms_mode was being used elsewhere to check on the actual status of the pipe. Track that bit of logic separately from the actual dpms mode, so there is no confusion should we be able to handle multiple dpms modes, nor any semantic conflict between prepare/commit and dpms. Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/intel_display.c | 18 +++++++++++++++++- drivers/gpu/drm/i915/intel_drv.h | 1 + drivers/gpu/drm/i915/intel_overlay.c | 8 +++----- 3 files changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 1e2a17d66ebb..a54b701f867c 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1956,6 +1956,10 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc) int plane = intel_crtc->plane; u32 reg, temp; + if (intel_crtc->active) + return; + + intel_crtc->active = true; intel_update_watermarks(dev); if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { @@ -2116,6 +2120,9 @@ static void ironlake_crtc_disable(struct drm_crtc *crtc) int plane = intel_crtc->plane; u32 reg, temp; + if (!intel_crtc->active) + return; + drm_vblank_off(dev, pipe); intel_crtc_update_cursor(crtc, false); @@ -2245,6 +2252,7 @@ static void ironlake_crtc_disable(struct drm_crtc *crtc) POSTING_READ(reg); udelay(100); + intel_crtc->active = false; intel_update_watermarks(dev); intel_update_fbc(dev); intel_clear_scanline_wait(dev); @@ -2298,6 +2306,10 @@ static void i9xx_crtc_enable(struct drm_crtc *crtc) int plane = intel_crtc->plane; u32 reg, temp; + if (intel_crtc->active) + return; + + intel_crtc->active = true; intel_update_watermarks(dev); /* Enable the DPLL */ @@ -2354,6 +2366,9 @@ static void i9xx_crtc_disable(struct drm_crtc *crtc) int plane = intel_crtc->plane; u32 reg, temp; + if (!intel_crtc->active) + return; + /* Give the overlay scaler a chance to disable if it's on this pipe */ intel_crtc_dpms_overlay(intel_crtc, false); intel_crtc_update_cursor(crtc, false); @@ -2402,6 +2417,7 @@ static void i9xx_crtc_disable(struct drm_crtc *crtc) } done: + intel_crtc->active = false; intel_update_fbc(dev); intel_update_watermarks(dev); intel_clear_scanline_wait(dev); @@ -3463,7 +3479,7 @@ static void intel_update_watermarks(struct drm_device *dev) /* Get the clock config from both planes */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - if (intel_crtc->dpms_mode == DRM_MODE_DPMS_ON) { + if (intel_crtc->active) { enabled++; if (intel_crtc->plane == 0) { DRM_DEBUG_KMS("plane A (pipe %d) clock: %d\n", diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index c0891b1ec7b5..5171b0523178 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -169,6 +169,7 @@ struct intel_crtc { enum plane plane; u8 lut_r[256], lut_g[256], lut_b[256]; int dpms_mode; + bool active; /* is the crtc on? independent of the dpms mode */ bool busy; /* is scanout buffer being updated frequently? */ struct timer_list idle_timer; bool lowfreq_avail; diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c index 3dff16118ee5..c4699c916698 100644 --- a/drivers/gpu/drm/i915/intel_overlay.c +++ b/drivers/gpu/drm/i915/intel_overlay.c @@ -875,15 +875,13 @@ static int check_overlay_possible_on_crtc(struct intel_overlay *overlay, struct intel_crtc *crtc) { drm_i915_private_t *dev_priv = overlay->dev->dev_private; - u32 pipeconf; - if (!crtc->base.enabled || crtc->dpms_mode != DRM_MODE_DPMS_ON) + if (!crtc->active) return -EINVAL; - pipeconf = I915_READ(PIPECONF(crtc->pipe)); - /* can't use the overlay with double wide pipe */ - if (!IS_I965G(overlay->dev) && pipeconf & PIPECONF_DOUBLE_WIDE) + if (!IS_I965G(overlay->dev) && + (I915_READ(PIPECONF(crtc->pipe)) & (PIPECONF_DOUBLE_WIDE | PIPECONF_ENABLE)) != PIPECONF_ENABLE) return -EINVAL; return 0; -- GitLab