From 93314b5b6f343f5a4c14c89d000007a754190c9a Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 13 Jun 2012 17:36:55 +0100 Subject: [PATCH] drm/i915: Switch off FBC when disabling the primary plane when obscured As we switch on/off the primary plane if it is completely obscured by an overlapping video sprite, we also nee to make sure that we update the FBC configuration at the same time. v2: Not all crtcs are intel_crtcs, as spotted by Daniel. v3: Boot testing rules. References: https://bugs.freedesktop.org/show_bug.cgi?id=50238 Signed-off-by: Chris Wilson Cc: Jesse Barnes Reviewed-by: Jesse Barnes Reviewed-by: Jani Nikula Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_drv.h | 2 +- drivers/gpu/drm/i915/intel_pm.c | 4 +++- drivers/gpu/drm/i915/intel_sprite.c | 25 +++++++++++++++---------- 3 files changed, 19 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 1a1fdb088dda..5290e9df327b 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -169,6 +169,7 @@ struct intel_crtc { 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 primary_disabled; /* is the crtc obscured by a plane? */ bool busy; /* is scanout buffer being updated frequently? */ struct timer_list idle_timer; bool lowfreq_avail; @@ -191,7 +192,6 @@ struct intel_plane { struct drm_plane base; enum pipe pipe; struct drm_i915_gem_object *obj; - bool primary_disabled; int max_downscale; u32 lut_r[1024], lut_g[1024], lut_b[1024]; void (*update_plane)(struct drm_plane *plane, diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index d0ce2a5b1d3f..b7de5ea62aa4 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -405,7 +405,9 @@ void intel_update_fbc(struct drm_device *dev) * - going to an unsupported config (interlace, pixel multiply, etc.) */ list_for_each_entry(tmp_crtc, &dev->mode_config.crtc_list, head) { - if (tmp_crtc->enabled && tmp_crtc->fb) { + if (tmp_crtc->enabled && + !to_intel_crtc(tmp_crtc)->primary_disabled && + tmp_crtc->fb) { if (crtc) { DRM_DEBUG_KMS("more than one pipe active, disabling compression\n"); dev_priv->no_fbc_reason = FBC_MULTIPLE_PIPES; diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 2a20fb0781d7..9d7777bc1545 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -326,6 +326,12 @@ intel_enable_primary(struct drm_crtc *crtc) struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int reg = DSPCNTR(intel_crtc->plane); + if (!intel_crtc->primary_disabled) + return; + + intel_crtc->primary_disabled = false; + intel_update_fbc(dev); + I915_WRITE(reg, I915_READ(reg) | DISPLAY_PLANE_ENABLE); } @@ -337,7 +343,13 @@ intel_disable_primary(struct drm_crtc *crtc) struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int reg = DSPCNTR(intel_crtc->plane); + if (intel_crtc->primary_disabled) + return; + I915_WRITE(reg, I915_READ(reg) & ~DISPLAY_PLANE_ENABLE); + + intel_crtc->primary_disabled = true; + intel_update_fbc(dev); } static int @@ -485,18 +497,14 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, * Be sure to re-enable the primary before the sprite is no longer * covering it fully. */ - if (!disable_primary && intel_plane->primary_disabled) { + if (!disable_primary) intel_enable_primary(crtc); - intel_plane->primary_disabled = false; - } intel_plane->update_plane(plane, fb, obj, crtc_x, crtc_y, crtc_w, crtc_h, x, y, src_w, src_h); - if (disable_primary) { + if (disable_primary) intel_disable_primary(crtc); - intel_plane->primary_disabled = true; - } /* Unpin old obj after new one is active to avoid ugliness */ if (old_obj) { @@ -527,11 +535,8 @@ intel_disable_plane(struct drm_plane *plane) struct intel_plane *intel_plane = to_intel_plane(plane); int ret = 0; - if (intel_plane->primary_disabled) { + if (plane->crtc) intel_enable_primary(plane->crtc); - intel_plane->primary_disabled = false; - } - intel_plane->disable_plane(plane); if (!intel_plane->obj) -- 2.20.1