[PATCH 1/2] drm/ttm: add interface to export kernel_zone max memory size in ttm

[Alex Deucher]

On Wed, Jul 27, 2016 at 7:21 AM, Ken Wang <Qingqing.Wang at amd.com> wrote:
> Change-Id: I9f30b54365492b234a7f0887dd0c67a9817c3705
> Signed-off-by: Ken Wang <Qingqing.Wang at amd.com>

Adding dri-devel as well since ttm is a common component.

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

> ---
>  drivers/gpu/drm/ttm/ttm_memory.c | 6 ++++++
>  include/drm/ttm/ttm_memory.h     | 1 +
>  2 files changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
> index a1803fb..29855be 100644
> --- a/drivers/gpu/drm/ttm/ttm_memory.c
> +++ b/drivers/gpu/drm/ttm/ttm_memory.c
> @@ -600,3 +600,9 @@ size_t ttm_round_pot(size_t size)
>         return 0;
>  }
>  EXPORT_SYMBOL(ttm_round_pot);
> +
> +uint64_t ttm_get_kernel_zone_memory_size(struct ttm_mem_global *glob)
> +{
> +       return glob->zone_kernel->max_mem;
> +}
> +EXPORT_SYMBOL(ttm_get_kernel_zone_memory_size);
> diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h
> index 72dcbe8..c452089 100644
> --- a/include/drm/ttm/ttm_memory.h
> +++ b/include/drm/ttm/ttm_memory.h
> @@ -155,4 +155,5 @@ extern int ttm_mem_global_alloc_page(struct ttm_mem_global *glob,
>  extern void ttm_mem_global_free_page(struct ttm_mem_global *glob,
>                                      struct page *page);
>  extern size_t ttm_round_pot(size_t size);
> +extern uint64_t ttm_get_kernel_zone_memory_size(struct ttm_mem_global *glob);
>  #endif
> --
> 2.7.4
>
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