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path: root/drivers/gpu/drm/ttm/ttm_memory.c
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Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_memory.c')
-rw-r--r--drivers/gpu/drm/ttm/ttm_memory.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index 072c281a6bb..f5245c02b8f 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c
@@ -274,16 +274,17 @@ static int ttm_mem_init_kernel_zone(struct ttm_mem_global *glob,
static int ttm_mem_init_highmem_zone(struct ttm_mem_global *glob,
const struct sysinfo *si)
{
- struct ttm_mem_zone *zone = kzalloc(sizeof(*zone), GFP_KERNEL);
+ struct ttm_mem_zone *zone;
uint64_t mem;
int ret;
- if (unlikely(!zone))
- return -ENOMEM;
-
if (si->totalhigh == 0)
return 0;
+ zone = kzalloc(sizeof(*zone), GFP_KERNEL);
+ if (unlikely(!zone))
+ return -ENOMEM;
+
mem = si->totalram;
mem *= si->mem_unit;
@@ -322,8 +323,10 @@ static int ttm_mem_init_dma32_zone(struct ttm_mem_global *glob,
* No special dma32 zone needed.
*/
- if (mem <= ((uint64_t) 1ULL << 32))
+ if (mem <= ((uint64_t) 1ULL << 32)) {
+ kfree(zone);
return 0;
+ }
/*
* Limit max dma32 memory to 4GB for now
@@ -460,6 +463,7 @@ void ttm_mem_global_free(struct ttm_mem_global *glob,
{
return ttm_mem_global_free_zone(glob, NULL, amount);
}
+EXPORT_SYMBOL(ttm_mem_global_free);
static int ttm_mem_global_reserve(struct ttm_mem_global *glob,
struct ttm_mem_zone *single_zone,
@@ -533,6 +537,7 @@ int ttm_mem_global_alloc(struct ttm_mem_global *glob, uint64_t memory,
return ttm_mem_global_alloc_zone(glob, NULL, memory, no_wait,
interruptible);
}
+EXPORT_SYMBOL(ttm_mem_global_alloc);
int ttm_mem_global_alloc_page(struct ttm_mem_global *glob,
struct page *page,
@@ -588,3 +593,4 @@ size_t ttm_round_pot(size_t size)
}
return 0;
}
+EXPORT_SYMBOL(ttm_round_pot);