From 4697995b98417c6da9ab2708a36f5e2bc926c8ac Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Thu, 7 Apr 2011 13:53:55 -0700 Subject: [PATCH] drm/i915: split irq handling into per-chipset functions Set the IRQ handling functions in driver load so they'll just be used directly, rather than branching over most of the code in the chipset functions. Signed-off-by: Jesse Barnes Reviewed-by: Keith Packard Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_dma.c | 12 +++++++++ drivers/gpu/drm/i915/i915_drv.h | 6 +++++ drivers/gpu/drm/i915/i915_irq.c | 45 ++++++++++++++++++--------------- 3 files changed, 43 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index b1ddcdc0748e..a3ee159b64ee 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1266,6 +1266,18 @@ static int i915_load_modeset_init(struct drm_device *dev) intel_modeset_gem_init(dev); + if (HAS_PCH_SPLIT(dev)) { + dev->driver->irq_handler = ironlake_irq_handler; + dev->driver->irq_preinstall = ironlake_irq_preinstall; + dev->driver->irq_postinstall = ironlake_irq_postinstall; + dev->driver->irq_uninstall = ironlake_irq_uninstall; + } else { + dev->driver->irq_preinstall = i915_driver_irq_preinstall; + dev->driver->irq_postinstall = i915_driver_irq_postinstall; + dev->driver->irq_uninstall = i915_driver_irq_uninstall; + dev->driver->irq_handler = i915_driver_irq_handler; + } + ret = drm_irq_install(dev); if (ret) goto cleanup_gem; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 4dbf4dfafb59..3c3233413df0 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1028,6 +1028,12 @@ extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS); extern void i915_driver_irq_preinstall(struct drm_device * dev); extern int i915_driver_irq_postinstall(struct drm_device *dev); extern void i915_driver_irq_uninstall(struct drm_device * dev); + +extern irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS); +extern void ironlake_irq_preinstall(struct drm_device *dev); +extern int ironlake_irq_postinstall(struct drm_device *dev); +extern void ironlake_irq_uninstall(struct drm_device *dev); + extern int i915_vblank_pipe_set(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int i915_vblank_pipe_get(struct drm_device *dev, void *data, diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 5be2aa0f54af..d967e1754cf2 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -462,8 +462,9 @@ static void pch_irq_handler(struct drm_device *dev) DRM_DEBUG_DRIVER("PCH transcoder A underrun interrupt\n"); } -static irqreturn_t ironlake_irq_handler(struct drm_device *dev) +irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS) { + struct drm_device *dev = (struct drm_device *) arg; drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; int ret = IRQ_NONE; u32 de_iir, gt_iir, de_ier, pch_iir, pm_iir; @@ -471,6 +472,8 @@ static irqreturn_t ironlake_irq_handler(struct drm_device *dev) struct drm_i915_master_private *master_priv; u32 bsd_usr_interrupt = GT_BSD_USER_INTERRUPT; + atomic_inc(&dev_priv->irq_received); + if (IS_GEN6(dev)) bsd_usr_interrupt = GT_GEN6_BSD_USER_INTERRUPT; @@ -1134,9 +1137,6 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) atomic_inc(&dev_priv->irq_received); - if (HAS_PCH_SPLIT(dev)) - return ironlake_irq_handler(dev); - iir = I915_READ(IIR); if (INTEL_INFO(dev)->gen >= 4) @@ -1593,10 +1593,15 @@ repeat: /* drm_dma.h hooks */ -static void ironlake_irq_preinstall(struct drm_device *dev) +void ironlake_irq_preinstall(struct drm_device *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; + atomic_set(&dev_priv->irq_received, 0); + + INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func); + INIT_WORK(&dev_priv->error_work, i915_error_work_func); + I915_WRITE(HWSTAM, 0xeffe); /* XXX hotplug from PCH */ @@ -1616,7 +1621,7 @@ static void ironlake_irq_preinstall(struct drm_device *dev) POSTING_READ(SDEIER); } -static int ironlake_irq_postinstall(struct drm_device *dev) +int ironlake_irq_postinstall(struct drm_device *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; /* enable kind of interrupts always enabled */ @@ -1625,6 +1630,13 @@ static int ironlake_irq_postinstall(struct drm_device *dev) u32 render_irqs; u32 hotplug_mask; + DRM_INIT_WAITQUEUE(&dev_priv->ring[RCS].irq_queue); + if (HAS_BSD(dev)) + DRM_INIT_WAITQUEUE(&dev_priv->ring[VCS].irq_queue); + if (HAS_BLT(dev)) + DRM_INIT_WAITQUEUE(&dev_priv->ring[BCS].irq_queue); + + dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B; dev_priv->irq_mask = ~display_mask; /* should always can generate irq */ @@ -1692,11 +1704,6 @@ void i915_driver_irq_preinstall(struct drm_device * dev) INIT_WORK(&dev_priv->error_work, i915_error_work_func); INIT_WORK(&dev_priv->rps_work, gen6_pm_rps_work); - if (HAS_PCH_SPLIT(dev)) { - ironlake_irq_preinstall(dev); - return; - } - if (I915_HAS_HOTPLUG(dev)) { I915_WRITE(PORT_HOTPLUG_EN, 0); I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); @@ -1722,9 +1729,6 @@ int i915_driver_irq_postinstall(struct drm_device *dev) dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B; - if (HAS_PCH_SPLIT(dev)) - return ironlake_irq_postinstall(dev); - /* Unmask the interrupts that we always want on. */ dev_priv->irq_mask = ~I915_INTERRUPT_ENABLE_FIX; @@ -1793,9 +1797,15 @@ int i915_driver_irq_postinstall(struct drm_device *dev) return 0; } -static void ironlake_irq_uninstall(struct drm_device *dev) +void ironlake_irq_uninstall(struct drm_device *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; + + if (!dev_priv) + return; + + dev_priv->vblank_pipe = 0; + I915_WRITE(HWSTAM, 0xffffffff); I915_WRITE(DEIMR, 0xffffffff); @@ -1817,11 +1827,6 @@ void i915_driver_irq_uninstall(struct drm_device * dev) dev_priv->vblank_pipe = 0; - if (HAS_PCH_SPLIT(dev)) { - ironlake_irq_uninstall(dev); - return; - } - if (I915_HAS_HOTPLUG(dev)) { I915_WRITE(PORT_HOTPLUG_EN, 0); I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); -- 2.20.1