On Tue, 4 Aug 2020 at 21:37, Christian König <christian.koenig@xxxxxxx> wrote:
>
> Am 04.08.20 um 04:56 schrieb Dave Airlie:
> > From: Dave Airlie <airlied@xxxxxxxxxx>
> >
> > The driver now controls these, the core just controls the system
> > memory one.
> >
> > v2: init sysman explicitly and assign it as a driver manager
> > to simplify the lookup sequence.
> >
> > Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
>
> Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
>
> > ---
> > drivers/gpu/drm/ttm/ttm_bo.c | 6 +++---
> > include/drm/ttm/ttm_bo_driver.h | 6 ++----
> > 2 files changed, 5 insertions(+), 7 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
> > index 78b72443a9ef..12abe46bfbc1 100644
> > --- a/drivers/gpu/drm/ttm/ttm_bo.c
> > +++ b/drivers/gpu/drm/ttm/ttm_bo.c
> > @@ -1558,6 +1558,7 @@ int ttm_bo_device_release(struct ttm_bo_device *bdev)
> >
> > man = ttm_manager_type(bdev, TTM_PL_SYSTEM);
> > ttm_mem_type_manager_disable(man);
> > + ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, NULL);
> >
> > mutex_lock(&ttm_global_mutex);
> > list_del(&bdev->device_list);
> > @@ -1583,7 +1584,7 @@ EXPORT_SYMBOL(ttm_bo_device_release);
> >
> > static void ttm_bo_init_sysman(struct ttm_bo_device *bdev)
> > {
> > - struct ttm_mem_type_manager *man = ttm_manager_type(bdev, TTM_PL_SYSTEM);
> > + struct ttm_mem_type_manager *man = &bdev->sysman;
> >
> > /*
> > * Initialize the system memory buffer type.
> > @@ -1594,6 +1595,7 @@ static void ttm_bo_init_sysman(struct ttm_bo_device *bdev)
> > man->default_caching = TTM_PL_FLAG_CACHED;
> >
> > ttm_mem_type_manager_init(man, 0);
> > + ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, man);
> > ttm_mem_type_manager_set_used(man, true);
> > }
> >
> > @@ -1615,8 +1617,6 @@ 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 bfd19400372f..d5646d7cac60 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;
> > struct ttm_mem_type_manager *man_drv[TTM_NUM_MEM_TYPES];
> > /*
> > * Protected by internal locks.
> > @@ -446,9 +446,7 @@ struct ttm_bo_device {
> > static inline struct ttm_mem_type_manager *ttm_manager_type(struct ttm_bo_device *bdev,
> > int mem_type)
> > {
> > - if (bdev->man_drv[mem_type])
> > - return bdev->man_drv[mem_type];
> > - return &bdev->man_priv[mem_type];
> > + return bdev->man_drv[mem_type];
> > }
> >
> > static inline void ttm_set_driver_manager(struct ttm_bo_device *bdev,
>
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