redonkable/remarkable-linux
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drm/nouveau: use vmalloc for pgt allocation

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Page tables on nv50 take 48kB, which can be hard to allocate in one piece.
Let's use vmalloc.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: stable@vger.kernel.org [3.7+]
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Marcin Slusarz 2013-06-11 10:50:30 +02:00 committed by Ben Skeggs
parent 5c5ae7157d
commit d005f51eb9
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/nouveau/core/subdev/vm/base.c
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@ -365,7 +365,7 @@ nouveau_vm_create(struct nouveau_vmmgr *vmm, u64 offset, u64 length,
vm->fpde = offset >> (vmm->pgt_bits + 12);
vm->lpde = (offset + length - 1) >> (vmm->pgt_bits + 12);
vm->pgt = kcalloc(vm->lpde - vm->fpde + 1, sizeof(*vm->pgt), GFP_KERNEL);
vm->pgt = vzalloc((vm->lpde - vm->fpde + 1) * sizeof(*vm->pgt));
if (!vm->pgt) {
kfree(vm);
return -ENOMEM;
@ -374,7 +374,7 @@ nouveau_vm_create(struct nouveau_vmmgr *vmm, u64 offset, u64 length,
ret = nouveau_mm_init(&vm->mm, mm_offset >> 12, mm_length >> 12,
block >> 12);
if (ret) {
kfree(vm->pgt);
vfree(vm->pgt);
kfree(vm);
return ret;
}
@ -450,7 +450,7 @@ nouveau_vm_del(struct nouveau_vm *vm)
}
nouveau_mm_fini(&vm->mm);
kfree(vm->pgt);
vfree(vm->pgt);
kfree(vm);
}