return -ENODEV;
mutex_lock(&dev->struct_mutex);
- i915_gem_init_global_gtt(dev, args->gtt_start,
- args->gtt_end, args->gtt_end);
+ i915_gem_setup_global_gtt(dev, args->gtt_start, args->gtt_end,
+ args->gtt_end);
mutex_unlock(&dev->struct_mutex);
return 0;
return 0;
}
+void *i915_gem_object_alloc(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ return kmem_cache_alloc(dev_priv->slab, GFP_KERNEL | __GFP_ZERO);
+}
+
+void i915_gem_object_free(struct drm_i915_gem_object *obj)
+{
+ struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
+ kmem_cache_free(dev_priv->slab, obj);
+}
+
static int
i915_gem_create(struct drm_file *file,
struct drm_device *dev,
if (ret) {
drm_gem_object_release(&obj->base);
i915_gem_info_remove_obj(dev->dev_private, obj->base.size);
- kfree(obj);
+ i915_gem_object_free(obj);
return ret;
}
args->size, &args->handle);
}
-static int i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
-{
- drm_i915_private_t *dev_priv = obj->base.dev->dev_private;
-
- return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
- obj->tiling_mode != I915_TILING_NONE;
-}
-
static inline int
__copy_to_user_swizzled(char __user *cpu_vaddr,
const char *gpu_vaddr, int gpu_offset,
loff_t offset;
int shmem_page_offset, page_length, ret = 0;
int obj_do_bit17_swizzling, page_do_bit17_swizzling;
- int hit_slowpath = 0;
int prefaulted = 0;
int needs_clflush = 0;
struct scatterlist *sg;
if (ret == 0)
goto next_page;
- hit_slowpath = 1;
mutex_unlock(&dev->struct_mutex);
if (!prefaulted) {
out:
i915_gem_object_unpin_pages(obj);
- if (hit_slowpath) {
- /* Fixup: Kill any reinstated backing storage pages */
- if (obj->madv == __I915_MADV_PURGED)
- i915_gem_object_truncate(obj);
- }
-
return ret;
}
i915_gem_object_unpin_pages(obj);
if (hit_slowpath) {
- /* Fixup: Kill any reinstated backing storage pages */
- if (obj->madv == __I915_MADV_PURGED)
- i915_gem_object_truncate(obj);
- /* and flush dirty cachelines in case the object isn't in the cpu write
- * domain anymore. */
- if (obj->base.write_domain != I915_GEM_DOMAIN_CPU) {
+ /*
+ * Fixup: Flush cpu caches in case we didn't flush the dirty
+ * cachelines in-line while writing and the object moved
+ * out of the cpu write domain while we've dropped the lock.
+ */
+ if (!needs_clflush_after &&
+ obj->base.write_domain != I915_GEM_DOMAIN_CPU) {
i915_gem_clflush_object(obj);
- intel_gtt_chipset_flush();
+ i915_gem_chipset_flush(dev);
}
}
if (needs_clflush_after)
- intel_gtt_chipset_flush();
+ i915_gem_chipset_flush(dev);
return ret;
}
trace_i915_gem_object_fault(obj, page_offset, true, write);
- /* Now bind it into the GTT if needed */
- if (!obj->map_and_fenceable) {
- ret = i915_gem_object_unbind(obj);
- if (ret)
- goto unlock;
+ /* Access to snoopable pages through the GTT is incoherent. */
+ if (obj->cache_level != I915_CACHE_NONE && !HAS_LLC(dev)) {
+ ret = -EINVAL;
+ goto unlock;
}
- if (!obj->gtt_space) {
- ret = i915_gem_object_bind_to_gtt(obj, 0, true, false);
- if (ret)
- goto unlock;
- ret = i915_gem_object_set_to_gtt_domain(obj, write);
- if (ret)
- goto unlock;
- }
+ /* Now bind it into the GTT if needed */
+ ret = i915_gem_object_pin(obj, 0, true, false);
+ if (ret)
+ goto unlock;
- if (!obj->has_global_gtt_mapping)
- i915_gem_gtt_bind_object(obj, obj->cache_level);
+ ret = i915_gem_object_set_to_gtt_domain(obj, write);
+ if (ret)
+ goto unpin;
ret = i915_gem_object_get_fence(obj);
if (ret)
- goto unlock;
-
- if (i915_gem_object_is_inactive(obj))
- list_move_tail(&obj->mm_list, &dev_priv->mm.inactive_list);
+ goto unpin;
obj->fault_mappable = true;
/* Finally, remap it using the new GTT offset */
ret = vm_insert_pfn(vma, (unsigned long)vmf->virtual_address, pfn);
+unpin:
+ i915_gem_object_unpin(obj);
unlock:
mutex_unlock(&dev->struct_mutex);
out:
if (obj->base.map_list.map)
return 0;
+ dev_priv->mm.shrinker_no_lock_stealing = true;
+
ret = drm_gem_create_mmap_offset(&obj->base);
if (ret != -ENOSPC)
- return ret;
+ goto out;
/* Badly fragmented mmap space? The only way we can recover
* space is by destroying unwanted objects. We can't randomly release
i915_gem_purge(dev_priv, obj->base.size >> PAGE_SHIFT);
ret = drm_gem_create_mmap_offset(&obj->base);
if (ret != -ENOSPC)
- return ret;
+ goto out;
i915_gem_shrink_all(dev_priv);
- return drm_gem_create_mmap_offset(&obj->base);
+ ret = drm_gem_create_mmap_offset(&obj->base);
+out:
+ dev_priv->mm.shrinker_no_lock_stealing = false;
+
+ return ret;
}
static void i915_gem_object_free_mmap_offset(struct drm_i915_gem_object *obj)
if (obj->pages_pin_count)
return -EBUSY;
+ /* ->put_pages might need to allocate memory for the bit17 swizzle
+ * array, hence protect them from being reaped by removing them from gtt
+ * lists early. */
+ list_del(&obj->gtt_list);
+
ops->put_pages(obj);
obj->pages = NULL;
- list_del(&obj->gtt_list);
if (i915_gem_object_is_purgeable(obj))
i915_gem_object_truncate(obj);
void
i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
- struct intel_ring_buffer *ring,
- u32 seqno)
+ struct intel_ring_buffer *ring)
{
struct drm_device *dev = obj->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 seqno = intel_ring_get_seqno(ring);
BUG_ON(ring == NULL);
obj->ring = ring;
WARN_ON(i915_verify_lists(dev));
}
-static u32
-i915_gem_get_seqno(struct drm_device *dev)
+static int
+i915_gem_init_seqno(struct drm_device *dev, u32 seqno)
{
- drm_i915_private_t *dev_priv = dev->dev_private;
- u32 seqno = dev_priv->next_seqno;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_ring_buffer *ring;
+ int ret, i, j;
- /* reserve 0 for non-seqno */
- if (++dev_priv->next_seqno == 0)
- dev_priv->next_seqno = 1;
+ /* Carefully retire all requests without writing to the rings */
+ for_each_ring(ring, dev_priv, i) {
+ ret = intel_ring_idle(ring);
+ if (ret)
+ return ret;
+ }
+ i915_gem_retire_requests(dev);
+
+ /* Finally reset hw state */
+ for_each_ring(ring, dev_priv, i) {
+ intel_ring_init_seqno(ring, seqno);
- return seqno;
+ for (j = 0; j < ARRAY_SIZE(ring->sync_seqno); j++)
+ ring->sync_seqno[j] = 0;
+ }
+
+ return 0;
}
-u32
-i915_gem_next_request_seqno(struct intel_ring_buffer *ring)
+int i915_gem_set_seqno(struct drm_device *dev, u32 seqno)
{
- if (ring->outstanding_lazy_request == 0)
- ring->outstanding_lazy_request = i915_gem_get_seqno(ring->dev);
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ if (seqno == 0)
+ return -EINVAL;
- return ring->outstanding_lazy_request;
+ /* HWS page needs to be set less than what we
+ * will inject to ring
+ */
+ ret = i915_gem_init_seqno(dev, seqno - 1);
+ if (ret)
+ return ret;
+
+ /* Carefully set the last_seqno value so that wrap
+ * detection still works
+ */
+ dev_priv->next_seqno = seqno;
+ dev_priv->last_seqno = seqno - 1;
+ if (dev_priv->last_seqno == 0)
+ dev_priv->last_seqno--;
+
+ return 0;
+}
+
+int
+i915_gem_get_seqno(struct drm_device *dev, u32 *seqno)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ /* reserve 0 for non-seqno */
+ if (dev_priv->next_seqno == 0) {
+ int ret = i915_gem_init_seqno(dev, 0);
+ if (ret)
+ return ret;
+
+ dev_priv->next_seqno = 1;
+ }
+
+ *seqno = dev_priv->last_seqno = dev_priv->next_seqno++;
+ return 0;
}
int
drm_i915_private_t *dev_priv = ring->dev->dev_private;
struct drm_i915_gem_request *request;
u32 request_ring_position;
- u32 seqno;
int was_empty;
int ret;
if (request == NULL)
return -ENOMEM;
- seqno = i915_gem_next_request_seqno(ring);
/* Record the position of the start of the request so that
* should we detect the updated seqno part-way through the
*/
request_ring_position = intel_ring_get_tail(ring);
- ret = ring->add_request(ring, &seqno);
+ ret = ring->add_request(ring);
if (ret) {
kfree(request);
return ret;
}
- trace_i915_gem_request_add(ring, seqno);
-
- request->seqno = seqno;
+ request->seqno = intel_ring_get_seqno(ring);
request->ring = ring;
request->tail = request_ring_position;
request->emitted_jiffies = jiffies;
spin_unlock(&file_priv->mm.lock);
}
+ trace_i915_gem_request_add(ring, request->seqno);
ring->outstanding_lazy_request = 0;
if (!dev_priv->mm.suspended) {
if (i915_enable_hangcheck) {
mod_timer(&dev_priv->hangcheck_timer,
- jiffies +
- msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD));
+ round_jiffies_up(jiffies + DRM_I915_HANGCHECK_JIFFIES));
}
if (was_empty) {
queue_delayed_work(dev_priv->wq,
- &dev_priv->mm.retire_work, HZ);
+ &dev_priv->mm.retire_work,
+ round_jiffies_up_relative(HZ));
intel_mark_busy(dev_priv->dev);
}
}
if (out_seqno)
- *out_seqno = seqno;
+ *out_seqno = request->seqno;
return 0;
}
i915_gem_retire_requests_ring(struct intel_ring_buffer *ring)
{
uint32_t seqno;
- int i;
if (list_empty(&ring->request_list))
return;
seqno = ring->get_seqno(ring, true);
- for (i = 0; i < ARRAY_SIZE(ring->sync_seqno); i++)
- if (seqno >= ring->sync_seqno[i])
- ring->sync_seqno[i] = 0;
-
while (!list_empty(&ring->request_list)) {
struct drm_i915_gem_request *request;
/* Come back later if the device is busy... */
if (!mutex_trylock(&dev->struct_mutex)) {
- queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, HZ);
+ queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work,
+ round_jiffies_up_relative(HZ));
return;
}
}
if (!dev_priv->mm.suspended && !idle)
- queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, HZ);
+ queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work,
+ round_jiffies_up_relative(HZ));
if (idle)
intel_mark_idle(dev);
ret = to->sync_to(to, from, seqno);
if (!ret)
- from->sync_seqno[idx] = seqno;
+ /* We use last_read_seqno because sync_to()
+ * might have just caused seqno wrap under
+ * the radar.
+ */
+ from->sync_seqno[idx] = obj->last_read_seqno;
return ret;
}
return 0;
}
-static int i915_ring_idle(struct intel_ring_buffer *ring)
-{
- if (list_empty(&ring->active_list))
- return 0;
-
- return i915_wait_seqno(ring, i915_gem_next_request_seqno(ring));
-}
-
int i915_gpu_idle(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
if (ret)
return ret;
- ret = i915_ring_idle(ring);
+ ret = intel_ring_idle(ring);
if (ret)
return ret;
}
case 4: i965_write_fence_reg(dev, reg, obj); break;
case 3: i915_write_fence_reg(dev, reg, obj); break;
case 2: i830_write_fence_reg(dev, reg, obj); break;
- default: break;
+ default: BUG();
}
}
/* On non-LLC machines we have to be careful when putting differing
* types of snoopable memory together to avoid the prefetcher
- * crossing memory domains and dieing.
+ * crossing memory domains and dying.
*/
if (HAS_LLC(dev))
return true;
{
struct drm_device *dev = obj->base.dev;
drm_i915_private_t *dev_priv = dev->dev_private;
- struct drm_mm_node *free_space;
+ struct drm_mm_node *node;
u32 size, fence_size, fence_alignment, unfenced_alignment;
bool mappable, fenceable;
int ret;
if (ret)
return ret;
+ i915_gem_object_pin_pages(obj);
+
+ node = kzalloc(sizeof(*node), GFP_KERNEL);
+ if (node == NULL) {
+ i915_gem_object_unpin_pages(obj);
+ return -ENOMEM;
+ }
+
search_free:
if (map_and_fenceable)
- free_space =
- drm_mm_search_free_in_range_color(&dev_priv->mm.gtt_space,
+ ret = drm_mm_insert_node_in_range_generic(&dev_priv->mm.gtt_space, node,
size, alignment, obj->cache_level,
- 0, dev_priv->mm.gtt_mappable_end,
- false);
+ 0, dev_priv->mm.gtt_mappable_end);
else
- free_space = drm_mm_search_free_color(&dev_priv->mm.gtt_space,
- size, alignment, obj->cache_level,
- false);
-
- if (free_space != NULL) {
- if (map_and_fenceable)
- obj->gtt_space =
- drm_mm_get_block_range_generic(free_space,
- size, alignment, obj->cache_level,
- 0, dev_priv->mm.gtt_mappable_end,
- false);
- else
- obj->gtt_space =
- drm_mm_get_block_generic(free_space,
- size, alignment, obj->cache_level,
- false);
- }
- if (obj->gtt_space == NULL) {
+ ret = drm_mm_insert_node_generic(&dev_priv->mm.gtt_space, node,
+ size, alignment, obj->cache_level);
+ if (ret) {
ret = i915_gem_evict_something(dev, size, alignment,
obj->cache_level,
map_and_fenceable,
nonblocking);
- if (ret)
- return ret;
+ if (ret == 0)
+ goto search_free;
- goto search_free;
+ i915_gem_object_unpin_pages(obj);
+ kfree(node);
+ return ret;
}
- if (WARN_ON(!i915_gem_valid_gtt_space(dev,
- obj->gtt_space,
- obj->cache_level))) {
- drm_mm_put_block(obj->gtt_space);
- obj->gtt_space = NULL;
+ if (WARN_ON(!i915_gem_valid_gtt_space(dev, node, obj->cache_level))) {
+ i915_gem_object_unpin_pages(obj);
+ drm_mm_put_block(node);
return -EINVAL;
}
-
ret = i915_gem_gtt_prepare_object(obj);
if (ret) {
- drm_mm_put_block(obj->gtt_space);
- obj->gtt_space = NULL;
+ i915_gem_object_unpin_pages(obj);
+ drm_mm_put_block(node);
return ret;
}
- if (!dev_priv->mm.aliasing_ppgtt)
- i915_gem_gtt_bind_object(obj, obj->cache_level);
-
list_move_tail(&obj->gtt_list, &dev_priv->mm.bound_list);
list_add_tail(&obj->mm_list, &dev_priv->mm.inactive_list);
- obj->gtt_offset = obj->gtt_space->start;
+ obj->gtt_space = node;
+ obj->gtt_offset = node->start;
fenceable =
- obj->gtt_space->size == fence_size &&
- (obj->gtt_space->start & (fence_alignment - 1)) == 0;
+ node->size == fence_size &&
+ (node->start & (fence_alignment - 1)) == 0;
mappable =
obj->gtt_offset + obj->base.size <= dev_priv->mm.gtt_mappable_end;
obj->map_and_fenceable = mappable && fenceable;
+ i915_gem_object_unpin_pages(obj);
trace_i915_gem_object_bind(obj, map_and_fenceable);
i915_gem_verify_gtt(dev);
return 0;
return;
i915_gem_clflush_object(obj);
- intel_gtt_chipset_flush();
+ i915_gem_chipset_flush(obj->base.dev);
old_write_domain = obj->base.write_domain;
obj->base.write_domain = 0;
}
if (obj->gtt_space == NULL) {
+ struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
+
ret = i915_gem_object_bind_to_gtt(obj, alignment,
map_and_fenceable,
nonblocking);
if (ret)
return ret;
+
+ if (!dev_priv->mm.aliasing_ppgtt)
+ i915_gem_gtt_bind_object(obj, obj->cache_level);
}
if (!obj->has_global_gtt_mapping && map_and_fenceable)
{
struct drm_i915_gem_object *obj;
struct address_space *mapping;
- u32 mask;
+ gfp_t mask;
- obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+ obj = i915_gem_object_alloc(dev);
if (obj == NULL)
return NULL;
if (drm_gem_object_init(dev, &obj->base, size) != 0) {
- kfree(obj);
+ i915_gem_object_free(obj);
return NULL;
}
obj->pages_pin_count = 0;
i915_gem_object_put_pages(obj);
i915_gem_object_free_mmap_offset(obj);
+ i915_gem_object_release_stolen(obj);
BUG_ON(obj->pages);
i915_gem_info_remove_obj(dev_priv, obj->base.size);
kfree(obj->bit_17);
- kfree(obj);
+ i915_gem_object_free(obj);
}
int
if (!IS_IVYBRIDGE(dev))
return;
- if (!dev_priv->mm.l3_remap_info)
+ if (!dev_priv->l3_parity.remap_info)
return;
misccpctl = I915_READ(GEN7_MISCCPCTL);
for (i = 0; i < GEN7_L3LOG_SIZE; i += 4) {
u32 remap = I915_READ(GEN7_L3LOG_BASE + i);
- if (remap && remap != dev_priv->mm.l3_remap_info[i/4])
+ if (remap && remap != dev_priv->l3_parity.remap_info[i/4])
DRM_DEBUG("0x%x was already programmed to %x\n",
GEN7_L3LOG_BASE + i, remap);
- if (remap && !dev_priv->mm.l3_remap_info[i/4])
+ if (remap && !dev_priv->l3_parity.remap_info[i/4])
DRM_DEBUG_DRIVER("Clearing remapped register\n");
- I915_WRITE(GEN7_L3LOG_BASE + i, dev_priv->mm.l3_remap_info[i/4]);
+ I915_WRITE(GEN7_L3LOG_BASE + i, dev_priv->l3_parity.remap_info[i/4]);
}
/* Make sure all the writes land before disabling dop clock gating */
I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_SWZCTL);
if (IS_GEN6(dev))
I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_SNB));
- else
+ else if (IS_GEN7(dev))
I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_IVB));
-}
-
-void i915_gem_init_ppgtt(struct drm_device *dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- uint32_t pd_offset;
- struct intel_ring_buffer *ring;
- struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
- uint32_t __iomem *pd_addr;
- uint32_t pd_entry;
- int i;
-
- if (!dev_priv->mm.aliasing_ppgtt)
- return;
-
-
- pd_addr = dev_priv->mm.gtt->gtt + ppgtt->pd_offset/sizeof(uint32_t);
- for (i = 0; i < ppgtt->num_pd_entries; i++) {
- dma_addr_t pt_addr;
-
- if (dev_priv->mm.gtt->needs_dmar)
- pt_addr = ppgtt->pt_dma_addr[i];
- else
- pt_addr = page_to_phys(ppgtt->pt_pages[i]);
-
- pd_entry = GEN6_PDE_ADDR_ENCODE(pt_addr);
- pd_entry |= GEN6_PDE_VALID;
-
- writel(pd_entry, pd_addr + i);
- }
- readl(pd_addr);
-
- pd_offset = ppgtt->pd_offset;
- pd_offset /= 64; /* in cachelines, */
- pd_offset <<= 16;
-
- if (INTEL_INFO(dev)->gen == 6) {
- uint32_t ecochk, gab_ctl, ecobits;
-
- ecobits = I915_READ(GAC_ECO_BITS);
- I915_WRITE(GAC_ECO_BITS, ecobits | ECOBITS_PPGTT_CACHE64B);
-
- gab_ctl = I915_READ(GAB_CTL);
- I915_WRITE(GAB_CTL, gab_ctl | GAB_CTL_CONT_AFTER_PAGEFAULT);
-
- ecochk = I915_READ(GAM_ECOCHK);
- I915_WRITE(GAM_ECOCHK, ecochk | ECOCHK_SNB_BIT |
- ECOCHK_PPGTT_CACHE64B);
- I915_WRITE(GFX_MODE, _MASKED_BIT_ENABLE(GFX_PPGTT_ENABLE));
- } else if (INTEL_INFO(dev)->gen >= 7) {
- I915_WRITE(GAM_ECOCHK, ECOCHK_PPGTT_CACHE64B);
- /* GFX_MODE is per-ring on gen7+ */
- }
-
- for_each_ring(ring, dev_priv, i) {
- if (INTEL_INFO(dev)->gen >= 7)
- I915_WRITE(RING_MODE_GEN7(ring),
- _MASKED_BIT_ENABLE(GFX_PPGTT_ENABLE));
-
- I915_WRITE(RING_PP_DIR_DCLV(ring), PP_DIR_DCLV_2G);
- I915_WRITE(RING_PP_DIR_BASE(ring), pd_offset);
- }
+ else
+ BUG();
}
static bool
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
- if (!intel_enable_gtt())
+ if (INTEL_INFO(dev)->gen < 6 && !intel_enable_gtt())
return -EIO;
if (IS_HASWELL(dev) && (I915_READ(0x120010) == 1))
i915_gem_init_swizzling(dev);
+ dev_priv->next_seqno = dev_priv->last_seqno = (u32)~0 - 0x1000;
+
ret = intel_init_render_ring_buffer(dev);
if (ret)
return ret;
goto cleanup_bsd_ring;
}
- dev_priv->next_seqno = 1;
-
/*
* XXX: There was some w/a described somewhere suggesting loading
* contexts before PPGTT.
return ret;
}
-static bool
-intel_enable_ppgtt(struct drm_device *dev)
-{
- if (i915_enable_ppgtt >= 0)
- return i915_enable_ppgtt;
-
-#ifdef CONFIG_INTEL_IOMMU
- /* Disable ppgtt on SNB if VT-d is on. */
- if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped)
- return false;
-#endif
-
- return true;
-}
-
int i915_gem_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- unsigned long gtt_size, mappable_size;
int ret;
- gtt_size = dev_priv->mm.gtt->gtt_total_entries << PAGE_SHIFT;
- mappable_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
-
mutex_lock(&dev->struct_mutex);
- if (intel_enable_ppgtt(dev) && HAS_ALIASING_PPGTT(dev)) {
- /* PPGTT pdes are stolen from global gtt ptes, so shrink the
- * aperture accordingly when using aliasing ppgtt. */
- gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE;
-
- i915_gem_init_global_gtt(dev, 0, mappable_size, gtt_size);
-
- ret = i915_gem_init_aliasing_ppgtt(dev);
- if (ret) {
- mutex_unlock(&dev->struct_mutex);
- return ret;
- }
- } else {
- /* Let GEM Manage all of the aperture.
- *
- * However, leave one page at the end still bound to the scratch
- * page. There are a number of places where the hardware
- * apparently prefetches past the end of the object, and we've
- * seen multiple hangs with the GPU head pointer stuck in a
- * batchbuffer bound at the last page of the aperture. One page
- * should be enough to keep any prefetching inside of the
- * aperture.
- */
- i915_gem_init_global_gtt(dev, 0, mappable_size,
- gtt_size);
- }
-
+ i915_gem_init_global_gtt(dev);
ret = i915_gem_init_hw(dev);
mutex_unlock(&dev->struct_mutex);
if (ret) {
void
i915_gem_load(struct drm_device *dev)
{
- int i;
drm_i915_private_t *dev_priv = dev->dev_private;
+ int i;
+
+ dev_priv->slab =
+ kmem_cache_create("i915_gem_object",
+ sizeof(struct drm_i915_gem_object), 0,
+ SLAB_HWCACHE_ALIGN,
+ NULL);
INIT_LIST_HEAD(&dev_priv->mm.active_list);
INIT_LIST_HEAD(&dev_priv->mm.inactive_list);
page_cache_release(page);
}
}
- intel_gtt_chipset_flush();
+ i915_gem_chipset_flush(dev);
obj->phys_obj->cur_obj = NULL;
obj->phys_obj = NULL;
return -EFAULT;
}
- intel_gtt_chipset_flush();
+ i915_gem_chipset_flush(dev);
return 0;
}
spin_unlock(&file_priv->mm.lock);
}
+static bool mutex_is_locked_by(struct mutex *mutex, struct task_struct *task)
+{
+ if (!mutex_is_locked(mutex))
+ return false;
+
+#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_MUTEXES)
+ return mutex->owner == task;
+#else
+ /* Since UP may be pre-empted, we cannot assume that we own the lock */
+ return false;
+#endif
+}
+
static int
i915_gem_inactive_shrink(struct shrinker *shrinker, struct shrink_control *sc)
{
struct drm_device *dev = dev_priv->dev;
struct drm_i915_gem_object *obj;
int nr_to_scan = sc->nr_to_scan;
+ bool unlock = true;
int cnt;
- if (!mutex_trylock(&dev->struct_mutex))
- return 0;
+ if (!mutex_trylock(&dev->struct_mutex)) {
+ if (!mutex_is_locked_by(&dev->struct_mutex, current))
+ return 0;
+
+ if (dev_priv->mm.shrinker_no_lock_stealing)
+ return 0;
+
+ unlock = false;
+ }
if (nr_to_scan) {
nr_to_scan -= i915_gem_purge(dev_priv, nr_to_scan);
if (obj->pin_count == 0 && obj->pages_pin_count == 0)
cnt += obj->base.size >> PAGE_SHIFT;
- mutex_unlock(&dev->struct_mutex);
+ if (unlock)
+ mutex_unlock(&dev->struct_mutex);
return cnt;
}
projects / ~andy / linux / blobdiff