diff options
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 17 |
2 files changed, 22 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 8b158f02bd0..7391697c25e 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1020,7 +1020,7 @@ static int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe, /* In vblank? */ if (in_vbl) - ret |= DRM_SCANOUTPOS_INVBL; + ret |= DRM_SCANOUTPOS_IN_VBLANK; return ret; } @@ -4701,6 +4701,14 @@ void intel_irq_init(struct drm_device *dev) dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */ } + /* + * Opt out of the vblank disable timer on everything except gen2. + * Gen2 doesn't have a hardware frame counter and so depends on + * vblank interrupts to produce sane vblank seuquence numbers. + */ + if (!IS_GEN2(dev)) + dev->vblank_disable_immediate = true; + if (drm_core_check_feature(dev, DRIVER_MODESET)) { dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp; dev->driver->get_scanout_position = i915_get_crtc_scanoutpos; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index ca8592e7364..0b327ebb2d9 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1342,6 +1342,12 @@ static void assert_sprites_disabled(struct drm_i915_private *dev_priv, } } +static void assert_vblank_disabled(struct drm_crtc *crtc) +{ + if (WARN_ON(drm_crtc_vblank_get(crtc) == 0)) + drm_crtc_vblank_put(crtc); +} + static void ibx_assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) { u32 val; @@ -3891,6 +3897,8 @@ static void intel_crtc_enable_planes(struct drm_crtc *crtc) struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int pipe = intel_crtc->pipe; + assert_vblank_disabled(crtc); + drm_vblank_on(dev, pipe); intel_enable_primary_hw_plane(crtc->primary, crtc); @@ -3940,6 +3948,8 @@ static void intel_crtc_disable_planes(struct drm_crtc *crtc) intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_ALL_MASK(pipe)); drm_vblank_off(dev, pipe); + + assert_vblank_disabled(crtc); } static void ironlake_crtc_enable(struct drm_crtc *crtc) @@ -12766,9 +12776,10 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc) I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); /* restore vblank interrupts to correct state */ - if (crtc->active) + if (crtc->active) { + update_scanline_offset(crtc); drm_vblank_on(dev, crtc->pipe); - else + } else drm_vblank_off(dev, crtc->pipe); /* We need to sanitize the plane -> pipe mapping first because this will @@ -12867,8 +12878,6 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc) */ crtc->cpu_fifo_underrun_disabled = true; crtc->pch_fifo_underrun_disabled = true; - - update_scanline_offset(crtc); } } |