From 33a50412c21229610dbb75dee83f145e2f1ec128 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 18 Jul 2007 14:22:40 -0700 Subject: Add dry-coded DRM drawable private information storage for FreeBSD. With this, all modules build again. --- shared-core/i915_irq.c | 70 ++++++++++++++++++++++++-------------------------- 1 file changed, 33 insertions(+), 37 deletions(-) (limited to 'shared-core/i915_irq.c') diff --git a/shared-core/i915_irq.c b/shared-core/i915_irq.c index 2f6a6b95..40724fae 100644 --- a/shared-core/i915_irq.c +++ b/shared-core/i915_irq.c @@ -50,6 +50,8 @@ i915_dispatch_vsync_flip(drm_device_t *dev, drm_drawable_info_t *drw, int pipe) u16 x1, y1, x2, y2; int pf_pipes = 1 << pipe; + DRM_SPINLOCK_ASSERT(&dev->drw_lock); + /* If the window is visible on the other pipe, we have to flip on that * pipe as well. */ @@ -89,7 +91,6 @@ i915_dispatch_vsync_flip(drm_device_t *dev, drm_drawable_info_t *drw, int pipe) static void i915_vblank_tasklet(drm_device_t *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - unsigned long irqflags; struct list_head *list, *tmp, hits, *hit; int nhits, nrects, slice[2], upper[2], lower[2], i, num_pages; unsigned counter[2] = { atomic_read(&dev->vbl_received), @@ -111,7 +112,12 @@ static void i915_vblank_tasklet(drm_device_t *dev) nhits = nrects = 0; - spin_lock_irqsave(&dev_priv->swaps_lock, irqflags); + /* No irqsave/restore necessary. This tasklet may be run in an + * interrupt context or normal context, but we don't have to worry + * about getting interrupted by something acquiring the lock, because + * we are the interrupt context thing that acquires the lock. + */ + DRM_SPINLOCK(&dev_priv->swaps_lock); /* Find buffer swaps scheduled for this vertical blank */ list_for_each_safe(list, tmp, &dev_priv->vbl_swaps.head) { @@ -124,15 +130,15 @@ static void i915_vblank_tasklet(drm_device_t *dev) list_del(list); dev_priv->swaps_pending--; - spin_unlock(&dev_priv->swaps_lock); - spin_lock(&dev->drw_lock); + DRM_SPINUNLOCK(&dev_priv->swaps_lock); + DRM_SPINLOCK(&dev->drw_lock); drw = drm_get_drawable_info(dev, vbl_swap->drw_id); if (!drw) { - spin_unlock(&dev->drw_lock); + DRM_SPINUNLOCK(&dev->drw_lock); drm_free(vbl_swap, sizeof(*vbl_swap), DRM_MEM_DRIVER); - spin_lock(&dev_priv->swaps_lock); + DRM_SPINLOCK(&dev_priv->swaps_lock); continue; } @@ -149,7 +155,7 @@ static void i915_vblank_tasklet(drm_device_t *dev) } } - spin_unlock(&dev->drw_lock); + DRM_SPINUNLOCK(&dev->drw_lock); /* List of hits was empty, or we reached the end of it */ if (hit == &hits) @@ -157,16 +163,15 @@ static void i915_vblank_tasklet(drm_device_t *dev) nhits++; - spin_lock(&dev_priv->swaps_lock); + DRM_SPINLOCK(&dev_priv->swaps_lock); } + DRM_SPINUNLOCK(&dev->drw_lock); + if (nhits == 0) { - spin_unlock_irqrestore(&dev_priv->swaps_lock, irqflags); return; } - spin_unlock(&dev_priv->swaps_lock); - i915_kernel_lost_context(dev); upper[0] = upper[1] = 0; @@ -180,7 +185,7 @@ static void i915_vblank_tasklet(drm_device_t *dev) offsets[2] = sarea_priv->third_offset; num_pages = sarea_priv->third_handle ? 3 : 2; - spin_lock(&dev->drw_lock); + DRM_SPINLOCK(&dev->drw_lock); /* Emit blits for buffer swaps, partitioning both outputs into as many * slices as there are buffer swaps scheduled in order to avoid tearing @@ -262,7 +267,7 @@ static void i915_vblank_tasklet(drm_device_t *dev) } } - spin_unlock_irqrestore(&dev->drw_lock, irqflags); + DRM_SPINUNLOCK(&dev->drw_lock); list_for_each_safe(hit, tmp, &hits) { drm_i915_vbl_swap_t *swap_hit = @@ -362,23 +367,23 @@ int i915_emit_irq(drm_device_t * dev) void i915_user_irq_on(drm_i915_private_t *dev_priv) { - spin_lock(&dev_priv->user_irq_lock); + DRM_SPINLOCK(&dev_priv->user_irq_lock); if (dev_priv->irq_enabled && (++dev_priv->user_irq_refcount == 1)){ dev_priv->irq_enable_reg |= USER_INT_FLAG; I915_WRITE16(I915REG_INT_ENABLE_R, dev_priv->irq_enable_reg); } - spin_unlock(&dev_priv->user_irq_lock); + DRM_SPINUNLOCK(&dev_priv->user_irq_lock); } void i915_user_irq_off(drm_i915_private_t *dev_priv) { - spin_lock(&dev_priv->user_irq_lock); + DRM_SPINLOCK(&dev_priv->user_irq_lock); if (dev_priv->irq_enabled && (--dev_priv->user_irq_refcount == 0)) { // dev_priv->irq_enable_reg &= ~USER_INT_FLAG; // I915_WRITE16(I915REG_INT_ENABLE_R, dev_priv->irq_enable_reg); } - spin_unlock(&dev_priv->user_irq_lock); + DRM_SPINUNLOCK(&dev_priv->user_irq_lock); } @@ -597,16 +602,6 @@ int i915_vblank_swap(DRM_IOCTL_ARGS) return DRM_ERR(EINVAL); } - spin_lock_irqsave(&dev->drw_lock, irqflags); - - if (!drm_get_drawable_info(dev, swap.drawable)) { - spin_unlock_irqrestore(&dev->drw_lock, irqflags); - DRM_DEBUG("Invalid drawable ID %d\n", swap.drawable); - return DRM_ERR(EINVAL); - } - - spin_unlock_irqrestore(&dev->drw_lock, irqflags); - curseq = atomic_read(pipe ? &dev->vbl_received2 : &dev->vbl_received); if (seqtype == _DRM_VBLANK_RELATIVE) @@ -629,12 +624,13 @@ int i915_vblank_swap(DRM_IOCTL_ARGS) LOCK_TEST_WITH_RETURN(dev, filp); - spin_lock_irqsave(&dev->drw_lock, irqflags); + DRM_SPINLOCK_IRQSAVE(&dev->drw_lock, irqflags); drw = drm_get_drawable_info(dev, swap.drawable); if (!drw) { - spin_unlock_irqrestore(&dev->drw_lock, irqflags); + DRM_SPINUNLOCK_IRQRESTORE(&dev->drw_lock, + irqflags); DRM_DEBUG("Invalid drawable ID %d\n", swap.drawable); return DRM_ERR(EINVAL); @@ -642,13 +638,13 @@ int i915_vblank_swap(DRM_IOCTL_ARGS) i915_dispatch_vsync_flip(dev, drw, pipe); - spin_unlock_irqrestore(&dev->drw_lock, irqflags); + DRM_SPINUNLOCK_IRQRESTORE(&dev->drw_lock, irqflags); return 0; } } - spin_lock_irqsave(&dev_priv->swaps_lock, irqflags); + DRM_SPINLOCK_IRQSAVE(&dev_priv->swaps_lock, irqflags); list_for_each(list, &dev_priv->vbl_swaps.head) { vbl_swap = list_entry(list, drm_i915_vbl_swap_t, head); @@ -657,13 +653,13 @@ int i915_vblank_swap(DRM_IOCTL_ARGS) vbl_swap->pipe == pipe && vbl_swap->sequence == swap.sequence) { vbl_swap->flip = (swap.seqtype & _DRM_VBLANK_FLIP); - spin_unlock_irqrestore(&dev_priv->swaps_lock, irqflags); + DRM_SPINUNLOCK_IRQRESTORE(&dev_priv->swaps_lock, irqflags); DRM_DEBUG("Already scheduled\n"); return 0; } } - spin_unlock_irqrestore(&dev_priv->swaps_lock, irqflags); + DRM_SPINUNLOCK_IRQRESTORE(&dev_priv->swaps_lock, irqflags); if (dev_priv->swaps_pending >= 100) { DRM_DEBUG("Too many swaps queued\n"); @@ -687,12 +683,12 @@ int i915_vblank_swap(DRM_IOCTL_ARGS) if (vbl_swap->flip) swap.sequence++; - spin_lock_irqsave(&dev_priv->swaps_lock, irqflags); + DRM_SPINLOCK_IRQSAVE(&dev_priv->swaps_lock, irqflags); list_add_tail((struct list_head *)vbl_swap, &dev_priv->vbl_swaps.head); dev_priv->swaps_pending++; - spin_unlock_irqrestore(&dev_priv->swaps_lock, irqflags); + DRM_SPINUNLOCK_IRQRESTORE(&dev_priv->swaps_lock, irqflags); DRM_COPY_TO_USER_IOCTL((drm_i915_vblank_swap_t __user *) data, swap, sizeof(swap)); @@ -715,11 +711,11 @@ void i915_driver_irq_postinstall(drm_device_t * dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - spin_lock_init(&dev_priv->swaps_lock); + DRM_SPININIT(&dev_priv->swaps_lock, "swap"); INIT_LIST_HEAD(&dev_priv->vbl_swaps.head); dev_priv->swaps_pending = 0; - spin_lock_init(&dev_priv->user_irq_lock); + DRM_SPININIT(&dev_priv->user_irq_lock, "userirq"); dev_priv->user_irq_refcount = 0; i915_enable_interrupt(dev); -- cgit v1.2.3