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authorDave Airlie <airlied@redhat.com>2021-01-25 14:35:44 +1000
committerDave Airlie <airlied@redhat.com>2021-01-25 14:35:44 +1000
commitbc96ad6722f86a377ed2872c9a4854c90caf78ca (patch)
treeece8859165a1faa10e4e2203d231fc7e87925139 /drivers/gpu/drm/ttm
parentd82afcf9caaac26ce2642511115bca9dacf30f41 (diff)
parent6ee1d745b7c9fd573fba142a2efdad76a9f1cb04 (diff)
Merge tag 'v5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Backmerge v5.11-rc5 into drm-next to clean up a bunch of conflicts we are dragging around. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r--drivers/gpu/drm/ttm/ttm_pool.c35
1 files changed, 17 insertions, 18 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c
index 7b2f60616750..11e0313db0ea 100644
--- a/drivers/gpu/drm/ttm/ttm_pool.c
+++ b/drivers/gpu/drm/ttm/ttm_pool.c
@@ -66,7 +66,7 @@ static struct ttm_pool_type global_uncached[MAX_ORDER];
static struct ttm_pool_type global_dma32_write_combined[MAX_ORDER];
static struct ttm_pool_type global_dma32_uncached[MAX_ORDER];
-static spinlock_t shrinker_lock;
+static struct mutex shrinker_lock;
static struct list_head shrinker_list;
static struct shrinker mm_shrinker;
@@ -79,12 +79,13 @@ static struct page *ttm_pool_alloc_page(struct ttm_pool *pool, gfp_t gfp_flags,
struct page *p;
void *vaddr;
- if (order) {
- gfp_flags |= GFP_TRANSHUGE_LIGHT | __GFP_NORETRY |
+ /* Don't set the __GFP_COMP flag for higher order allocations.
+ * Mapping pages directly into an userspace process and calling
+ * put_page() on a TTM allocated page is illegal.
+ */
+ if (order)
+ gfp_flags |= __GFP_NOMEMALLOC | __GFP_NORETRY |
__GFP_KSWAPD_RECLAIM;
- gfp_flags &= ~__GFP_MOVABLE;
- gfp_flags &= ~__GFP_COMP;
- }
if (!pool->use_dma_alloc) {
p = alloc_pages(gfp_flags, order);
@@ -190,7 +191,7 @@ static int ttm_pool_map(struct ttm_pool *pool, unsigned int order,
size_t size = (1ULL << order) * PAGE_SIZE;
addr = dma_map_page(pool->dev, p, 0, size, DMA_BIDIRECTIONAL);
- if (dma_mapping_error(pool->dev, **dma_addr))
+ if (dma_mapping_error(pool->dev, addr))
return -EFAULT;
}
@@ -249,9 +250,9 @@ static void ttm_pool_type_init(struct ttm_pool_type *pt, struct ttm_pool *pool,
spin_lock_init(&pt->lock);
INIT_LIST_HEAD(&pt->pages);
- spin_lock(&shrinker_lock);
+ mutex_lock(&shrinker_lock);
list_add_tail(&pt->shrinker_list, &shrinker_list);
- spin_unlock(&shrinker_lock);
+ mutex_unlock(&shrinker_lock);
}
/* Remove a pool_type from the global shrinker list and free all pages */
@@ -259,9 +260,9 @@ static void ttm_pool_type_fini(struct ttm_pool_type *pt)
{
struct page *p, *tmp;
- spin_lock(&shrinker_lock);
+ mutex_lock(&shrinker_lock);
list_del(&pt->shrinker_list);
- spin_unlock(&shrinker_lock);
+ mutex_unlock(&shrinker_lock);
list_for_each_entry_safe(p, tmp, &pt->pages, lru)
ttm_pool_free_page(pt->pool, pt->caching, pt->order, p);
@@ -302,7 +303,7 @@ static unsigned int ttm_pool_shrink(void)
unsigned int num_freed;
struct page *p;
- spin_lock(&shrinker_lock);
+ mutex_lock(&shrinker_lock);
pt = list_first_entry(&shrinker_list, typeof(*pt), shrinker_list);
p = ttm_pool_type_take(pt);
@@ -314,7 +315,7 @@ static unsigned int ttm_pool_shrink(void)
}
list_move_tail(&pt->shrinker_list, &shrinker_list);
- spin_unlock(&shrinker_lock);
+ mutex_unlock(&shrinker_lock);
return num_freed;
}
@@ -507,7 +508,6 @@ void ttm_pool_init(struct ttm_pool *pool, struct device *dev,
ttm_pool_type_init(&pool->caching[i].orders[j],
pool, i, j);
}
-EXPORT_SYMBOL(ttm_pool_init);
/**
* ttm_pool_fini - Cleanup a pool
@@ -525,7 +525,6 @@ void ttm_pool_fini(struct ttm_pool *pool)
for (j = 0; j < MAX_ORDER; ++j)
ttm_pool_type_fini(&pool->caching[i].orders[j]);
}
-EXPORT_SYMBOL(ttm_pool_fini);
#ifdef CONFIG_DEBUG_FS
/* Count the number of pages available in a pool_type */
@@ -566,7 +565,7 @@ int ttm_pool_debugfs(struct ttm_pool *pool, struct seq_file *m)
{
unsigned int i;
- spin_lock(&shrinker_lock);
+ mutex_lock(&shrinker_lock);
seq_puts(m, "\t ");
for (i = 0; i < MAX_ORDER; ++i)
@@ -602,7 +601,7 @@ int ttm_pool_debugfs(struct ttm_pool *pool, struct seq_file *m)
seq_printf(m, "\ntotal\t: %8lu of %8lu\n",
atomic_long_read(&allocated_pages), page_pool_size);
- spin_unlock(&shrinker_lock);
+ mutex_unlock(&shrinker_lock);
return 0;
}
@@ -646,7 +645,7 @@ int ttm_pool_mgr_init(unsigned long num_pages)
if (!page_pool_size)
page_pool_size = num_pages;
- spin_lock_init(&shrinker_lock);
+ mutex_init(&shrinker_lock);
INIT_LIST_HEAD(&shrinker_list);
for (i = 0; i < MAX_ORDER; ++i) {