| Message ID | 20200819134419.2054-1-christian.koenig@amd.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/ttm: fix broken merge between drm-next and drm-misc-next | expand |
On Wed, 19 Aug 2020 at 23:44, Christian König <ckoenig.leichtzumerken@gmail.com> wrote: > > drm-next reverted the changes to ttm_tt_create() to do the > NULL check inside the function, but drm-misc-next adds new > users of this approach. > > Re-apply the NULL check change inside the function to fix this. Where is this problem now? only in drm-tip or have we baked the broken mere already? If it's baked then 'Reviewed-by: Dave Airlie <airlied@redhat.com>` If it's not baked, then please use the dim howto to put a fixup in the right place. Dave.
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 97ac662a47cb..e3931e515906 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1180,7 +1180,7 @@ int ttm_bo_validate(struct ttm_buffer_object *bo, /* * We might need to add a TTM. */ - if (bo->mem.mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) { + if (bo->mem.mem_type == TTM_PL_SYSTEM) { ret = ttm_tt_create(bo, true); if (ret) return ret; diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 9aa4fbe386e6..1ccf1ef050d6 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -50,6 +50,9 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc) dma_resv_assert_held(bo->base.resv); + if (bo->ttm) + return 0; + if (bdev->need_dma32) page_flags |= TTM_PAGE_FLAG_DMA32; @@ -67,7 +70,6 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc) page_flags |= TTM_PAGE_FLAG_SG; break; default: - bo->ttm = NULL; pr_err("Illegal buffer object type\n"); return -EINVAL; }
drm-next reverted the changes to ttm_tt_create() to do the NULL check inside the function, but drm-misc-next adds new users of this approach. Re-apply the NULL check change inside the function to fix this. Signed-off-by: Christian König <christian.koenig@amd.com> --- drivers/gpu/drm/ttm/ttm_bo.c | 2 +- drivers/gpu/drm/ttm/ttm_tt.c | 4 +++- 2 files changed, 4 insertions(+), 2 deletions(-)