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i915: Make use of sarea_priv conditional. 

We fail ioctls that depend on the sarea_priv with EINVAL.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Kristian Høgsberg 2008-08-20 11:20:13 -04:00 committed by Dave Airlie
parent 546b0974c3
commit c99b058f13
2 changed files with 31 additions and 15 deletions
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21
drivers/gpu/drm/i915/i915_dma.c
View File

@ -55,7 +55,8 @@ int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
if (ring->space >= n)
return 0;
dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
if (dev_priv->sarea_priv)
dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
if (ring->head != last_head)
i = 0;
@ -128,7 +129,7 @@ void i915_kernel_lost_context(struct drm_device * dev)
if (ring->space < 0)
ring->space += ring->Size;
if (ring->head == ring->tail)
if (ring->head == ring->tail && dev_priv->sarea_priv)
dev_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY;
}
@ -433,10 +434,11 @@ static void i915_emit_breadcrumb(struct drm_device *dev)
drm_i915_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
dev_priv->sarea_priv->last_enqueue = ++dev_priv->counter;
dev_priv->counter++;
if (dev_priv->counter > 0x7FFFFFFFUL)
dev_priv->sarea_priv->last_enqueue = dev_priv->counter = 1;
dev_priv->counter = 0;
if (dev_priv->sarea_priv)
dev_priv->sarea_priv->last_enqueue = dev_priv->counter;
BEGIN_LP_RING(4);
OUT_RING(MI_STORE_DWORD_INDEX);
@ -534,6 +536,9 @@ static int i915_dispatch_flip(struct drm_device * dev)
drm_i915_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
if (!dev_priv->sarea_priv)
return -EINVAL;
DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n",
__func__,
dev_priv->current_page,
@ -628,7 +633,8 @@ static int i915_batchbuffer(struct drm_device *dev, void *data,
ret = i915_dispatch_batchbuffer(dev, batch);
mutex_unlock(&dev->struct_mutex);
sarea_priv->last_dispatch = (int)hw_status[5];
if (sarea_priv)
sarea_priv->last_dispatch = (int)hw_status[5];
return ret;
}
@ -663,7 +669,8 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
return ret;
}
sarea_priv->last_dispatch = (int)hw_status[5];
if (sarea_priv)
sarea_priv->last_dispatch = (int)hw_status[5];
return 0;
}

25
drivers/gpu/drm/i915/i915_irq.c
View File

@ -427,7 +427,9 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
I915_WRITE(IMR, dev_priv->irq_mask_reg);
(void) I915_READ(IIR); /* Flush posted writes */
dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
if (dev_priv->sarea_priv)
dev_priv->sarea_priv->last_dispatch =
READ_BREADCRUMB(dev_priv);
if (iir & I915_USER_INTERRUPT) {
dev_priv->mm.irq_gem_seqno = i915_get_gem_seqno(dev);
@ -456,10 +458,11 @@ static int i915_emit_irq(struct drm_device * dev)
DRM_DEBUG("\n");
dev_priv->sarea_priv->last_enqueue = ++dev_priv->counter;
dev_priv->counter++;
if (dev_priv->counter > 0x7FFFFFFFUL)
dev_priv->sarea_priv->last_enqueue = dev_priv->counter = 1;
dev_priv->counter = 1;
if (dev_priv->sarea_priv)
dev_priv->sarea_priv->last_enqueue = dev_priv->counter;
BEGIN_LP_RING(6);
OUT_RING(MI_STORE_DWORD_INDEX);
@ -503,11 +506,15 @@ static int i915_wait_irq(struct drm_device * dev, int irq_nr)
READ_BREADCRUMB(dev_priv));
if (READ_BREADCRUMB(dev_priv) >= irq_nr) {
dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
if (dev_priv->sarea_priv) {
dev_priv->sarea_priv->last_dispatch =
READ_BREADCRUMB(dev_priv);
}
return 0;
}
dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
if (dev_priv->sarea_priv)
dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
i915_user_irq_get(dev);
DRM_WAIT_ON(ret, dev_priv->irq_queue, 3 * DRM_HZ,
@ -519,7 +526,9 @@ static int i915_wait_irq(struct drm_device * dev, int irq_nr)
READ_BREADCRUMB(dev_priv), (int)dev_priv->counter);
}
dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
if (dev_priv->sarea_priv)
dev_priv->sarea_priv->last_dispatch =
READ_BREADCRUMB(dev_priv);
return ret;
}
@ -682,7 +691,7 @@ int i915_vblank_swap(struct drm_device *dev, void *data,
struct list_head *list;
int ret;
if (!dev_priv) {
if (!dev_priv || !dev_priv->sarea_priv) {
DRM_ERROR("%s called with no initialization\n", __func__);
return -EINVAL;
}