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author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2016-05-17 13:07:55 (GMT) |
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committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2016-05-19 12:38:15 (GMT) |
commit | 8dd634d922615ec3a9af7976029110ec037f8b50 (patch) | |
tree | 590a4b23553c5afcd7bba52b16f3606eb743df22 /drivers/gpu/drm/i915/i915_irq.c | |
parent | 143f73b3bf48c089b40f58462dd7f7c199fd4f0f (diff) | |
download | linux-8dd634d922615ec3a9af7976029110ec037f8b50.tar.xz |
drm/i915: Remove cs based page flip support.
With mmio flips now available on all platforms it's time to remove
support for cs flips.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1463490484-19540-13-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 120 |
1 files changed, 22 insertions, 98 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 3242a37..5513c4c 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -136,6 +136,12 @@ static const u32 hpd_bxt[HPD_NUM_PINS] = { POSTING_READ(type##IIR); \ } while (0) +static void +intel_finish_page_flip_cs(struct drm_i915_private *dev_priv, unsigned pipe) +{ + DRM_DEBUG_KMS("Finished page flip\n"); +} + /* * We should clear IMR at preinstall/uninstall, and just check at postinstall. */ @@ -1631,16 +1637,11 @@ static void gen6_rps_irq_handler(struct drm_i915_private *dev_priv, u32 pm_iir) } } -static bool intel_pipe_handle_vblank(struct drm_i915_private *dev_priv, +static void intel_pipe_handle_vblank(struct drm_i915_private *dev_priv, enum pipe pipe) { - bool ret; - - ret = drm_handle_vblank(dev_priv->dev, pipe); - if (ret) + if (drm_handle_vblank(dev_priv->dev, pipe)) intel_finish_page_flip_mmio(dev_priv, pipe); - - return ret; } static void valleyview_pipestat_irq_ack(struct drm_i915_private *dev_priv, @@ -1707,9 +1708,8 @@ static void valleyview_pipestat_irq_handler(struct drm_i915_private *dev_priv, enum pipe pipe; for_each_pipe(dev_priv, pipe) { - if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS && - intel_pipe_handle_vblank(dev_priv, pipe)) - intel_check_page_flip(dev_priv, pipe); + if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS) + intel_pipe_handle_vblank(dev_priv, pipe); if (pipe_stats[pipe] & PLANE_FLIP_DONE_INT_STATUS_VLV) intel_finish_page_flip_cs(dev_priv, pipe); @@ -2155,9 +2155,8 @@ static void ilk_display_irq_handler(struct drm_i915_private *dev_priv, DRM_ERROR("Poison interrupt\n"); for_each_pipe(dev_priv, pipe) { - if (de_iir & DE_PIPE_VBLANK(pipe) && - intel_pipe_handle_vblank(dev_priv, pipe)) - intel_check_page_flip(dev_priv, pipe); + if (de_iir & DE_PIPE_VBLANK(pipe)) + intel_pipe_handle_vblank(dev_priv, pipe); if (de_iir & DE_PIPE_FIFO_UNDERRUN(pipe)) intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe); @@ -2206,9 +2205,8 @@ static void ivb_display_irq_handler(struct drm_i915_private *dev_priv, intel_opregion_asle_intr(dev_priv); for_each_pipe(dev_priv, pipe) { - if (de_iir & (DE_PIPE_VBLANK_IVB(pipe)) && - intel_pipe_handle_vblank(dev_priv, pipe)) - intel_check_page_flip(dev_priv, pipe); + if (de_iir & (DE_PIPE_VBLANK_IVB(pipe))) + intel_pipe_handle_vblank(dev_priv, pipe); /* plane/pipes map 1:1 on ilk+ */ if (de_iir & DE_PLANE_FLIP_DONE_IVB(pipe)) @@ -2407,9 +2405,8 @@ gen8_de_irq_handler(struct drm_i915_private *dev_priv, u32 master_ctl) ret = IRQ_HANDLED; I915_WRITE(GEN8_DE_PIPE_IIR(pipe), iir); - if (iir & GEN8_PIPE_VBLANK && - intel_pipe_handle_vblank(dev_priv, pipe)) - intel_check_page_flip(dev_priv, pipe); + if (iir & GEN8_PIPE_VBLANK) + intel_pipe_handle_vblank(dev_priv, pipe); flip_done = iir; if (INTEL_INFO(dev_priv)->gen >= 9) @@ -3973,37 +3970,6 @@ static int i8xx_irq_postinstall(struct drm_device *dev) return 0; } -/* - * Returns true when a page flip has completed. - */ -static bool i8xx_handle_vblank(struct drm_i915_private *dev_priv, - int plane, int pipe, u32 iir) -{ - u16 flip_pending = DISPLAY_PLANE_FLIP_PENDING(plane); - - if (!intel_pipe_handle_vblank(dev_priv, pipe)) - return false; - - if ((iir & flip_pending) == 0) - goto check_page_flip; - - /* We detect FlipDone by looking for the change in PendingFlip from '1' - * to '0' on the following vblank, i.e. IIR has the Pendingflip - * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence - * the flip is completed (no longer pending). Since this doesn't raise - * an interrupt per se, we watch for the change at vblank. - */ - if (I915_READ16(ISR) & flip_pending) - goto check_page_flip; - - intel_finish_page_flip_cs(dev_priv, pipe); - return true; - -check_page_flip: - intel_check_page_flip(dev_priv, pipe); - return false; -} - static irqreturn_t i8xx_irq_handler(int irq, void *arg) { struct drm_device *dev = arg; @@ -4056,13 +4022,8 @@ static irqreturn_t i8xx_irq_handler(int irq, void *arg) notify_ring(&dev_priv->engine[RCS]); for_each_pipe(dev_priv, pipe) { - int plane = pipe; - if (HAS_FBC(dev_priv)) - plane = !plane; - - if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS && - i8xx_handle_vblank(dev_priv, plane, pipe, iir)) - flip_mask &= ~DISPLAY_PLANE_FLIP_PENDING(plane); + if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS) + intel_pipe_handle_vblank(dev_priv, pipe); if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS) i9xx_pipe_crc_irq_handler(dev_priv, pipe); @@ -4162,37 +4123,6 @@ static int i915_irq_postinstall(struct drm_device *dev) return 0; } -/* - * Returns true when a page flip has completed. - */ -static bool i915_handle_vblank(struct drm_i915_private *dev_priv, - int plane, int pipe, u32 iir) -{ - u32 flip_pending = DISPLAY_PLANE_FLIP_PENDING(plane); - - if (!intel_pipe_handle_vblank(dev_priv, pipe)) - return false; - - if ((iir & flip_pending) == 0) - goto check_page_flip; - - /* We detect FlipDone by looking for the change in PendingFlip from '1' - * to '0' on the following vblank, i.e. IIR has the Pendingflip - * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence - * the flip is completed (no longer pending). Since this doesn't raise - * an interrupt per se, we watch for the change at vblank. - */ - if (I915_READ(ISR) & flip_pending) - goto check_page_flip; - - intel_finish_page_flip_cs(dev_priv, pipe); - return true; - -check_page_flip: - intel_check_page_flip(dev_priv, pipe); - return false; -} - static irqreturn_t i915_irq_handler(int irq, void *arg) { struct drm_device *dev = arg; @@ -4253,13 +4183,8 @@ static irqreturn_t i915_irq_handler(int irq, void *arg) notify_ring(&dev_priv->engine[RCS]); for_each_pipe(dev_priv, pipe) { - int plane = pipe; - if (HAS_FBC(dev_priv)) - plane = !plane; - - if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS && - i915_handle_vblank(dev_priv, plane, pipe, iir)) - flip_mask &= ~DISPLAY_PLANE_FLIP_PENDING(plane); + if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS) + intel_pipe_handle_vblank(dev_priv, pipe); if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS) blc_event = true; @@ -4487,9 +4412,8 @@ static irqreturn_t i965_irq_handler(int irq, void *arg) notify_ring(&dev_priv->engine[VCS]); for_each_pipe(dev_priv, pipe) { - if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS && - i915_handle_vblank(dev_priv, pipe, pipe, iir)) - flip_mask &= ~DISPLAY_PLANE_FLIP_PENDING(pipe); + if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS) + intel_pipe_handle_vblank(dev_priv, pipe); if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS) blc_event = true; |