On Fri, Jul 31, 2020 at 02:05:18PM +1000, Dave Airlie wrote:
> From: Dave Airlie <airlied@xxxxxxxxxx>
>
> The driver now controls these, the core just controls the system
> memory one.
>
> Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
> ---
> drivers/gpu/drm/ttm/ttm_bo.c | 2 --
> include/drm/ttm/ttm_bo_driver.h | 6 ++++--
> 2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
> index f2b41c4d7d51..f35548ff17e8 100644
> --- a/drivers/gpu/drm/ttm/ttm_bo.c
> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
> @@ -1608,8 +1608,6 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev,
>
> bdev->driver = driver;
>
> - memset(bdev->man_priv, 0, sizeof(bdev->man_priv));
> -
> ttm_bo_init_sysman(bdev);
>
> bdev->vma_manager = vma_manager;
> diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
> index bfc549782775..b2ffeaed94e7 100644
> --- a/include/drm/ttm/ttm_bo_driver.h
> +++ b/include/drm/ttm/ttm_bo_driver.h
> @@ -414,7 +414,7 @@ struct ttm_bo_device {
> /*
> * access via ttm_manager_type.
> */
> - struct ttm_mem_type_manager man_priv[TTM_NUM_MEM_TYPES];
> + struct ttm_mem_type_manager sysman; /* move to global */
Not sure we want to move this to global. With the shrinker rework ideas I
discussed with Christian somewhere (I think) we could easily do a
per-device shrinker. And then global kinda completely disappears (minus
maybe a drm-global limit on how much crap you can permanently pin in
system memory for scanout, but that's a different thing I think).
-Daniel
> struct ttm_mem_type_manager *man_drv[TTM_NUM_MEM_TYPES];
> /*
> * Protected by internal locks.
> @@ -446,9 +446,11 @@ struct ttm_bo_device {
> static inline struct ttm_mem_type_manager *ttm_manager_type(struct ttm_bo_device *bdev,
> int mem_type)
> {
> + if (mem_type == TTM_PL_SYSTEM)
> + return &bdev->sysman;
> if (bdev->man_drv[mem_type])
> return bdev->man_drv[mem_type];
> - return &bdev->man_priv[mem_type];
> + return NULL;
> }
>
> static inline void ttm_set_driver_manager(struct ttm_bo_device *bdev,
> --
> 2.26.2
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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