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drm/amdgpu: Limit the maximum size of contiguous VRAM that can be encapsulated by...
[linux-2.6-microblaze.git]
/
drivers
/
gpu
/
drm
/
amd
/
amdgpu
/
amdgpu_vram_mgr.c
diff --git
a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index
d2de2a7
..
c89b66b
100644
(file)
--- a/
drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/
drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@
-473,6
+473,9
@@
static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
for (i = 0; pages_left >= pages_per_node; ++i) {
unsigned long pages = rounddown_pow_of_two(pages_left);
for (i = 0; pages_left >= pages_per_node; ++i) {
unsigned long pages = rounddown_pow_of_two(pages_left);
+ /* Limit maximum size to 2GB due to SG table limitations */
+ pages = min(pages, (2UL << (30 - PAGE_SHIFT)));
+
r = drm_mm_insert_node_in_range(mm, &nodes[i], pages,
pages_per_node, 0,
place->fpfn, lpfn,
r = drm_mm_insert_node_in_range(mm, &nodes[i], pages,
pages_per_node, 0,
place->fpfn, lpfn,