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path: root/drivers/gpu/drm/ttm/ttm_bo.c
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Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo.c')
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c77
1 files changed, 52 insertions, 25 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 1fbb2eea5e88..2920f9a279e1 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -71,34 +71,34 @@ static inline int ttm_mem_type_from_flags(uint32_t flags, uint32_t *mem_type)
return -EINVAL;
}
-static void ttm_mem_type_manager_debug(struct ttm_bo_global *glob,
- struct ttm_mem_type_manager *man)
+static void ttm_mem_type_debug(struct ttm_bo_device *bdev, int mem_type)
{
+ struct ttm_mem_type_manager *man = &bdev->man[mem_type];
+
printk(KERN_ERR TTM_PFX " has_type: %d\n", man->has_type);
printk(KERN_ERR TTM_PFX " use_type: %d\n", man->use_type);
printk(KERN_ERR TTM_PFX " flags: 0x%08X\n", man->flags);
printk(KERN_ERR TTM_PFX " gpu_offset: 0x%08lX\n", man->gpu_offset);
printk(KERN_ERR TTM_PFX " io_offset: 0x%08lX\n", man->io_offset);
printk(KERN_ERR TTM_PFX " io_size: %ld\n", man->io_size);
- printk(KERN_ERR TTM_PFX " size: %ld\n", (unsigned long)man->size);
+ printk(KERN_ERR TTM_PFX " size: %llu\n", man->size);
printk(KERN_ERR TTM_PFX " available_caching: 0x%08X\n",
man->available_caching);
printk(KERN_ERR TTM_PFX " default_caching: 0x%08X\n",
man->default_caching);
- spin_lock(&glob->lru_lock);
- drm_mm_debug_table(&man->manager, TTM_PFX);
- spin_unlock(&glob->lru_lock);
+ if (mem_type != TTM_PL_SYSTEM) {
+ spin_lock(&bdev->glob->lru_lock);
+ drm_mm_debug_table(&man->manager, TTM_PFX);
+ spin_unlock(&bdev->glob->lru_lock);
+ }
}
static void ttm_bo_mem_space_debug(struct ttm_buffer_object *bo,
struct ttm_placement *placement)
{
- struct ttm_bo_device *bdev = bo->bdev;
- struct ttm_bo_global *glob = bo->glob;
- struct ttm_mem_type_manager *man;
int i, ret, mem_type;
- printk(KERN_ERR TTM_PFX "No space for %p (%ld pages, %ldK, %ldM)\n",
+ printk(KERN_ERR TTM_PFX "No space for %p (%lu pages, %luK, %luM)\n",
bo, bo->mem.num_pages, bo->mem.size >> 10,
bo->mem.size >> 20);
for (i = 0; i < placement->num_placement; i++) {
@@ -106,10 +106,9 @@ static void ttm_bo_mem_space_debug(struct ttm_buffer_object *bo,
&mem_type);
if (ret)
return;
- man = &bdev->man[mem_type];
printk(KERN_ERR TTM_PFX " placement[%d]=0x%08X (%d)\n",
i, placement->placement[i], mem_type);
- ttm_mem_type_manager_debug(glob, man);
+ ttm_mem_type_debug(bo->bdev, mem_type);
}
}
@@ -465,6 +464,8 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo, bool remove_all)
spin_unlock(&bo->lock);
spin_lock(&glob->lru_lock);
+ put_count = ttm_bo_del_from_lru(bo);
+
ret = ttm_bo_reserve_locked(bo, false, false, false, 0);
BUG_ON(ret);
if (bo->ttm)
@@ -472,20 +473,19 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo, bool remove_all)
if (!list_empty(&bo->ddestroy)) {
list_del_init(&bo->ddestroy);
- kref_put(&bo->list_kref, ttm_bo_ref_bug);
+ ++put_count;
}
if (bo->mem.mm_node) {
bo->mem.mm_node->private = NULL;
drm_mm_put_block(bo->mem.mm_node);
bo->mem.mm_node = NULL;
}
- put_count = ttm_bo_del_from_lru(bo);
spin_unlock(&glob->lru_lock);
atomic_set(&bo->reserved, 0);
while (put_count--)
- kref_put(&bo->list_kref, ttm_bo_release_list);
+ kref_put(&bo->list_kref, ttm_bo_ref_bug);
return 0;
}
@@ -684,19 +684,45 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev,
struct ttm_buffer_object *bo;
int ret, put_count = 0;
+retry:
spin_lock(&glob->lru_lock);
+ if (list_empty(&man->lru)) {
+ spin_unlock(&glob->lru_lock);
+ return -EBUSY;
+ }
+
bo = list_first_entry(&man->lru, struct ttm_buffer_object, lru);
kref_get(&bo->list_kref);
- ret = ttm_bo_reserve_locked(bo, interruptible, no_wait, false, 0);
- if (likely(ret == 0))
- put_count = ttm_bo_del_from_lru(bo);
+
+ ret = ttm_bo_reserve_locked(bo, false, true, false, 0);
+
+ if (unlikely(ret == -EBUSY)) {
+ spin_unlock(&glob->lru_lock);
+ if (likely(!no_wait))
+ ret = ttm_bo_wait_unreserved(bo, interruptible);
+
+ kref_put(&bo->list_kref, ttm_bo_release_list);
+
+ /**
+ * We *need* to retry after releasing the lru lock.
+ */
+
+ if (unlikely(ret != 0))
+ return ret;
+ goto retry;
+ }
+
+ put_count = ttm_bo_del_from_lru(bo);
spin_unlock(&glob->lru_lock);
- if (unlikely(ret != 0))
- return ret;
+
+ BUG_ON(ret != 0);
+
while (put_count--)
kref_put(&bo->list_kref, ttm_bo_ref_bug);
+
ret = ttm_bo_evict(bo, interruptible, no_wait);
ttm_bo_unreserve(bo);
+
kref_put(&bo->list_kref, ttm_bo_release_list);
return ret;
}
@@ -849,7 +875,7 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
int i, ret;
mem->mm_node = NULL;
- for (i = 0; i <= placement->num_placement; ++i) {
+ for (i = 0; i < placement->num_placement; ++i) {
ret = ttm_mem_type_from_flags(placement->placement[i],
&mem_type);
if (ret)
@@ -900,8 +926,8 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
if (!type_found)
return -EINVAL;
- for (i = 0; i <= placement->num_busy_placement; ++i) {
- ret = ttm_mem_type_from_flags(placement->placement[i],
+ for (i = 0; i < placement->num_busy_placement; ++i) {
+ ret = ttm_mem_type_from_flags(placement->busy_placement[i],
&mem_type);
if (ret)
return ret;
@@ -911,7 +937,7 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
if (!ttm_bo_mt_compatible(man,
bo->type == ttm_bo_type_user,
mem_type,
- placement->placement[i],
+ placement->busy_placement[i],
&cur_flags))
continue;
@@ -921,7 +947,7 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
* Use the access and other non-mapping-related flag bits from
* the memory placement flags to the current flags
*/
- ttm_flag_masked(&cur_flags, placement->placement[i],
+ ttm_flag_masked(&cur_flags, placement->busy_placement[i],
~TTM_PL_MASK_MEMTYPE);
ret = ttm_bo_mem_force_space(bo, mem_type, placement, mem,
@@ -1115,6 +1141,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
bo->glob = bdev->glob;
bo->type = type;
bo->num_pages = num_pages;
+ bo->mem.size = num_pages << PAGE_SHIFT;
bo->mem.mem_type = TTM_PL_SYSTEM;
bo->mem.num_pages = bo->num_pages;
bo->mem.mm_node = NULL;
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-19 22:51:50 +0000