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path: root/drivers/gpu/drm/i915/i915_irq.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
-rw-r--r--drivers/gpu/drm/i915/i915_irq.c197
1 files changed, 124 insertions, 73 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 5bd4361ea84d..afd4e03e337e 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -720,7 +720,6 @@ i915_error_object_create(struct drm_i915_private *dev_priv,
reloc_offset = src->gtt_offset;
for (page = 0; page < page_count; page++) {
unsigned long flags;
- void __iomem *s;
void *d;
d = kmalloc(PAGE_SIZE, GFP_ATOMIC);
@@ -728,10 +727,29 @@ i915_error_object_create(struct drm_i915_private *dev_priv,
goto unwind;
local_irq_save(flags);
- s = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
- reloc_offset);
- memcpy_fromio(d, s, PAGE_SIZE);
- io_mapping_unmap_atomic(s);
+ if (reloc_offset < dev_priv->mm.gtt_mappable_end) {
+ void __iomem *s;
+
+ /* Simply ignore tiling or any overlapping fence.
+ * It's part of the error state, and this hopefully
+ * captures what the GPU read.
+ */
+
+ s = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
+ reloc_offset);
+ memcpy_fromio(d, s, PAGE_SIZE);
+ io_mapping_unmap_atomic(s);
+ } else {
+ void *s;
+
+ drm_clflush_pages(&src->pages[page], 1);
+
+ s = kmap_atomic(src->pages[page]);
+ memcpy(d, s, PAGE_SIZE);
+ kunmap_atomic(s);
+
+ drm_clflush_pages(&src->pages[page], 1);
+ }
local_irq_restore(flags);
dst->pages[page] = d;
@@ -770,11 +788,11 @@ i915_error_state_free(struct drm_device *dev,
{
int i;
- for (i = 0; i < ARRAY_SIZE(error->batchbuffer); i++)
- i915_error_object_free(error->batchbuffer[i]);
-
- for (i = 0; i < ARRAY_SIZE(error->ringbuffer); i++)
- i915_error_object_free(error->ringbuffer[i]);
+ for (i = 0; i < ARRAY_SIZE(error->ring); i++) {
+ i915_error_object_free(error->ring[i].batchbuffer);
+ i915_error_object_free(error->ring[i].ringbuffer);
+ kfree(error->ring[i].requests);
+ }
kfree(error->active_bo);
kfree(error->overlay);
@@ -804,7 +822,7 @@ static u32 capture_bo_list(struct drm_i915_error_buffer *err,
err->tiling = obj->tiling_mode;
err->dirty = obj->dirty;
err->purgeable = obj->madv != I915_MADV_WILLNEED;
- err->ring = obj->ring ? obj->ring->id : 0;
+ err->ring = obj->ring ? obj->ring->id : -1;
err->cache_level = obj->cache_level;
if (++i == count)
@@ -876,6 +894,92 @@ i915_error_first_batchbuffer(struct drm_i915_private *dev_priv,
return NULL;
}
+static void i915_record_ring_state(struct drm_device *dev,
+ struct drm_i915_error_state *error,
+ struct intel_ring_buffer *ring)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (INTEL_INFO(dev)->gen >= 6) {
+ error->faddr[ring->id] = I915_READ(RING_DMA_FADD(ring->mmio_base));
+ error->fault_reg[ring->id] = I915_READ(RING_FAULT_REG(ring));
+ error->semaphore_mboxes[ring->id][0]
+ = I915_READ(RING_SYNC_0(ring->mmio_base));
+ error->semaphore_mboxes[ring->id][1]
+ = I915_READ(RING_SYNC_1(ring->mmio_base));
+ }
+
+ if (INTEL_INFO(dev)->gen >= 4) {
+ error->ipeir[ring->id] = I915_READ(RING_IPEIR(ring->mmio_base));
+ error->ipehr[ring->id] = I915_READ(RING_IPEHR(ring->mmio_base));
+ error->instdone[ring->id] = I915_READ(RING_INSTDONE(ring->mmio_base));
+ error->instps[ring->id] = I915_READ(RING_INSTPS(ring->mmio_base));
+ if (ring->id == RCS) {
+ error->instdone1 = I915_READ(INSTDONE1);
+ error->bbaddr = I915_READ64(BB_ADDR);
+ }
+ } else {
+ error->ipeir[ring->id] = I915_READ(IPEIR);
+ error->ipehr[ring->id] = I915_READ(IPEHR);
+ error->instdone[ring->id] = I915_READ(INSTDONE);
+ }
+
+ error->instpm[ring->id] = I915_READ(RING_INSTPM(ring->mmio_base));
+ error->seqno[ring->id] = ring->get_seqno(ring);
+ error->acthd[ring->id] = intel_ring_get_active_head(ring);
+ error->head[ring->id] = I915_READ_HEAD(ring);
+ error->tail[ring->id] = I915_READ_TAIL(ring);
+
+ error->cpu_ring_head[ring->id] = ring->head;
+ error->cpu_ring_tail[ring->id] = ring->tail;
+}
+
+static void i915_gem_record_rings(struct drm_device *dev,
+ struct drm_i915_error_state *error)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_gem_request *request;
+ int i, count;
+
+ for (i = 0; i < I915_NUM_RINGS; i++) {
+ struct intel_ring_buffer *ring = &dev_priv->ring[i];
+
+ if (ring->obj == NULL)
+ continue;
+
+ i915_record_ring_state(dev, error, ring);
+
+ error->ring[i].batchbuffer =
+ i915_error_first_batchbuffer(dev_priv, ring);
+
+ error->ring[i].ringbuffer =
+ i915_error_object_create(dev_priv, ring->obj);
+
+ count = 0;
+ list_for_each_entry(request, &ring->request_list, list)
+ count++;
+
+ error->ring[i].num_requests = count;
+ error->ring[i].requests =
+ kmalloc(count*sizeof(struct drm_i915_error_request),
+ GFP_ATOMIC);
+ if (error->ring[i].requests == NULL) {
+ error->ring[i].num_requests = 0;
+ continue;
+ }
+
+ count = 0;
+ list_for_each_entry(request, &ring->request_list, list) {
+ struct drm_i915_error_request *erq;
+
+ erq = &error->ring[i].requests[count++];
+ erq->seqno = request->seqno;
+ erq->jiffies = request->emitted_jiffies;
+ erq->tail = request->tail;
+ }
+ }
+}
+
/**
* i915_capture_error_state - capture an error record for later analysis
* @dev: drm device
@@ -900,7 +1004,7 @@ static void i915_capture_error_state(struct drm_device *dev)
return;
/* Account for pipe specific data like PIPE*STAT */
- error = kmalloc(sizeof(*error), GFP_ATOMIC);
+ error = kzalloc(sizeof(*error), GFP_ATOMIC);
if (!error) {
DRM_DEBUG_DRIVER("out of memory, not capturing error state\n");
return;
@@ -909,59 +1013,18 @@ static void i915_capture_error_state(struct drm_device *dev)
DRM_INFO("capturing error event; look for more information in /debug/dri/%d/i915_error_state\n",
dev->primary->index);
- error->seqno = dev_priv->ring[RCS].get_seqno(&dev_priv->ring[RCS]);
error->eir = I915_READ(EIR);
error->pgtbl_er = I915_READ(PGTBL_ER);
for_each_pipe(pipe)
error->pipestat[pipe] = I915_READ(PIPESTAT(pipe));
- error->instpm = I915_READ(INSTPM);
- error->error = 0;
+
if (INTEL_INFO(dev)->gen >= 6) {
error->error = I915_READ(ERROR_GEN6);
-
- error->bcs_acthd = I915_READ(BCS_ACTHD);
- error->bcs_ipehr = I915_READ(BCS_IPEHR);
- error->bcs_ipeir = I915_READ(BCS_IPEIR);
- error->bcs_instdone = I915_READ(BCS_INSTDONE);
- error->bcs_seqno = 0;
- if (dev_priv->ring[BCS].get_seqno)
- error->bcs_seqno = dev_priv->ring[BCS].get_seqno(&dev_priv->ring[BCS]);
-
- error->vcs_acthd = I915_READ(VCS_ACTHD);
- error->vcs_ipehr = I915_READ(VCS_IPEHR);
- error->vcs_ipeir = I915_READ(VCS_IPEIR);
- error->vcs_instdone = I915_READ(VCS_INSTDONE);
- error->vcs_seqno = 0;
- if (dev_priv->ring[VCS].get_seqno)
- error->vcs_seqno = dev_priv->ring[VCS].get_seqno(&dev_priv->ring[VCS]);
+ error->done_reg = I915_READ(DONE_REG);
}
- if (INTEL_INFO(dev)->gen >= 4) {
- error->ipeir = I915_READ(IPEIR_I965);
- error->ipehr = I915_READ(IPEHR_I965);
- error->instdone = I915_READ(INSTDONE_I965);
- error->instps = I915_READ(INSTPS);
- error->instdone1 = I915_READ(INSTDONE1);
- error->acthd = I915_READ(ACTHD_I965);
- error->bbaddr = I915_READ64(BB_ADDR);
- } else {
- error->ipeir = I915_READ(IPEIR);
- error->ipehr = I915_READ(IPEHR);
- error->instdone = I915_READ(INSTDONE);
- error->acthd = I915_READ(ACTHD);
- error->bbaddr = 0;
- }
- i915_gem_record_fences(dev, error);
-
- /* Record the active batch and ring buffers */
- for (i = 0; i < I915_NUM_RINGS; i++) {
- error->batchbuffer[i] =
- i915_error_first_batchbuffer(dev_priv,
- &dev_priv->ring[i]);
- error->ringbuffer[i] =
- i915_error_object_create(dev_priv,
- dev_priv->ring[i].obj);
- }
+ i915_gem_record_fences(dev, error);
+ i915_gem_record_rings(dev, error);
/* Record buffers on the active and pinned lists. */
error->active_bo = NULL;
@@ -1017,11 +1080,12 @@ void i915_destroy_error_state(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_error_state *error;
+ unsigned long flags;
- spin_lock(&dev_priv->error_lock);
+ spin_lock_irqsave(&dev_priv->error_lock, flags);
error = dev_priv->first_error;
dev_priv->first_error = NULL;
- spin_unlock(&dev_priv->error_lock);
+ spin_unlock_irqrestore(&dev_priv->error_lock, flags);
if (error)
i915_error_state_free(dev, error);
@@ -1698,6 +1762,7 @@ void i915_hangcheck_elapsed(unsigned long data)
dev_priv->last_instdone1 == instdone1) {
if (dev_priv->hangcheck_count++ > 1) {
DRM_ERROR("Hangcheck timer elapsed... GPU hung\n");
+ i915_handle_error(dev, true);
if (!IS_GEN2(dev)) {
/* Is the chip hanging on a WAIT_FOR_EVENT?
@@ -1705,7 +1770,6 @@ void i915_hangcheck_elapsed(unsigned long data)
* and break the hang. This should work on
* all but the second generation chipsets.
*/
-
if (kick_ring(&dev_priv->ring[RCS]))
goto repeat;
@@ -1718,7 +1782,6 @@ void i915_hangcheck_elapsed(unsigned long data)
goto repeat;
}
- i915_handle_error(dev, true);
return;
}
} else {
@@ -1752,18 +1815,6 @@ static void ironlake_irq_preinstall(struct drm_device *dev)
I915_WRITE(HWSTAM, 0xeffe);
- if (IS_GEN6(dev)) {
- /* Workaround stalls observed on Sandy Bridge GPUs by
- * making the blitter command streamer generate a
- * write to the Hardware Status Page for
- * MI_USER_INTERRUPT. This appears to serialize the
- * previous seqno write out before the interrupt
- * happens.
- */
- I915_WRITE(GEN6_BLITTER_HWSTAM, ~GEN6_BLITTER_USER_INTERRUPT);
- I915_WRITE(GEN6_BSD_HWSTAM, ~GEN6_BSD_USER_INTERRUPT);
- }
-
/* XXX hotplug from PCH */
I915_WRITE(DEIMR, 0xffffffff);