[PATCH v3 1/5] drm/ttm: add helper structures for bulk moves on lru list

[Huang Rui]

On Tue, Aug 14, 2018 at 10:02:00AM +0800, Zhou, David(ChunMing) wrote:
> 
> 
> On 2018年08月13日 18:16, Christian König wrote:
> > Am 13.08.2018 um 11:58 schrieb Huang Rui:
> >> From: Christian König <christian.koenig at amd.com>
> >>
> >> Add bulk move pos to store the pointer of first and last buffer object.
> >> The list in between will be bulk moved on lru list.
> >>
> >> Signed-off-by: Christian König <christian.koenig at amd.com>
> >> Signed-off-by: Huang Rui <ray.huang at amd.com>
> >> Tested-by: Mike Lothian <mike at fireburn.co.uk>
> >
> > If you ask me that looks like it should work now, but I'm prepossessed 
> > because I helped creating this.
> >
> > Alex, David or Jerry can somebody else take a look as well?
> remember position, list ops...
> Acked-by: Chunming Zhou <david1.zhou at amd.com>
> 

Thanks David, any comments are warm for me.

Best Regards,
Ray

> >
> > Thanks,
> > Christian.
> >
> >> ---
> >>   include/drm/ttm/ttm_bo_driver.h | 28 ++++++++++++++++++++++++++++
> >>   1 file changed, 28 insertions(+)
> >>
> >> diff --git a/include/drm/ttm/ttm_bo_driver.h 
> >> b/include/drm/ttm/ttm_bo_driver.h
> >> index 3234cc3..e4fee8e 100644
> >> --- a/include/drm/ttm/ttm_bo_driver.h
> >> +++ b/include/drm/ttm/ttm_bo_driver.h
> >> @@ -491,6 +491,34 @@ struct ttm_bo_device {
> >>   };
> >>     /**
> >> + * struct ttm_lru_bulk_move_pos
> >> + *
> >> + * @first: first BO in the bulk move range
> >> + * @last: last BO in the bulk move range
> >> + *
> >> + * Positions for a lru bulk move.
> >> + */
> >> +struct ttm_lru_bulk_move_pos {
> >> +    struct ttm_buffer_object *first;
> >> +    struct ttm_buffer_object *last;
> >> +};
> >> +
> >> +/**
> >> + * struct ttm_lru_bulk_move
> >> + *
> >> + * @tt: first/last lru entry for BOs in the TT domain
> >> + * @vram: first/last lru entry for BOs in the VRAM domain
> >> + * @swap: first/last lru entry for BOs on the swap list
> >> + *
> >> + * Helper structure for bulk moves on the LRU list.
> >> + */
> >> +struct ttm_lru_bulk_move {
> >> +    struct ttm_lru_bulk_move_pos tt[TTM_MAX_BO_PRIORITY];
> >> +    struct ttm_lru_bulk_move_pos vram[TTM_MAX_BO_PRIORITY];
> >> +    struct ttm_lru_bulk_move_pos swap[TTM_MAX_BO_PRIORITY];
> >> +};
> >> +
> >> +/**
> >>    * ttm_flag_masked
> >>    *
> >>    * @old: Pointer to the result and original value.
> >
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