[PATCH] drm/radeon: page table BOs are kernel allocations

[Alex Deucher]

On Wed, Jul 2, 2014 at 3:28 PM, Christian König <deathsimple at vodafone.de> wrote:
> From: Christian König <christian.koenig at amd.com>
>
> Userspace shouldn't be able to access them.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
> Cc: stable at vger.kernel.org

I assume this is for 3.15.  I had to tweak it slightly for 3.16.

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/radeon/radeon_vm.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
> index c11b71d..c8c48aa 100644
> --- a/drivers/gpu/drm/radeon/radeon_vm.c
> +++ b/drivers/gpu/drm/radeon/radeon_vm.c
> @@ -493,7 +493,7 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
>                 mutex_unlock(&vm->mutex);
>
>                 r = radeon_bo_create(rdev, RADEON_VM_PTE_COUNT * 8,
> -                                    RADEON_GPU_PAGE_SIZE, false,
> +                                    RADEON_GPU_PAGE_SIZE, true,
>                                      RADEON_GEM_DOMAIN_VRAM, NULL, &pt);
>                 if (r)
>                         return r;
> @@ -913,7 +913,7 @@ int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm)
>                 return -ENOMEM;
>         }
>
> -       r = radeon_bo_create(rdev, pd_size, RADEON_VM_PTB_ALIGN_SIZE, false,
> +       r = radeon_bo_create(rdev, pd_size, RADEON_VM_PTB_ALIGN_SIZE, true,
>                              RADEON_GEM_DOMAIN_VRAM, NULL,
>                              &vm->page_directory);
>         if (r)
> --
> 1.9.1
>