drm/radeon: move size limits to gem_object_create.

[linux-imx.git] / drivers / gpu / drm / radeon / radeon_gem.c

diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index f38fbcc469358a2144791d40f910d4d900d99202..dfee7bb03ab0c12ab10dd6e90dabeeb722ee0847 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -53,6 +53,7 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size,
                                struct drm_gem_object **obj)
 {
        struct radeon_bo *robj;
+       unsigned long max_size;
        int r;
 
        *obj = NULL;
@@ -60,6 +61,15 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size,
        if (alignment < PAGE_SIZE) {
                alignment = PAGE_SIZE;
        }
+
+       /* maximun bo size is the minimun btw visible vram and gtt size */
+       max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size);
+       if (size > max_size) {
+               printk(KERN_WARNING "%s:%d alloc size %dMb bigger than %ldMb limit\n",
+                      __func__, __LINE__, size >> 20, max_size >> 20);
+               return -ENOMEM;
+       }
+
        r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj);
        if (r) {
                if (r != -ERESTARTSYS)