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authorKristian Høgsberg <krh@redhat.com>2008-08-20 11:20:13 -0400
committerDave Airlie <airlied@linux.ie>2008-10-18 07:10:51 +1000
commitc99b058f132388a666544d293392d52d1def6b12 (patch)
treed9417f12dfa2957af7c0fa86f47be29691c0cd97 /drivers/gpu/drm/i915
parent546b0974c39657017407c86fe79811100b60700d (diff)
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>
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c21
-rw-r--r--drivers/gpu/drm/i915/i915_irq.c25
2 files changed, 31 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index d71c89f8802..048da791ca6 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -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;
}
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index d04c526410a..ef03a59c1df 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -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;
}