Am 22.04.22 um 18:13 schrieb Zack Rusin:

From: Zack Rusin zackr@vmware.com

The buffer objects created by cotables were missing fence reservations. They are created from vmw_validation_res_validate which makes them miss the ttm_eu_reserve_buffers which is called from vmw_validation_bo_reserve.

Cotables are the only resources which create a buffer object in the create callback so make sure the code also reserves the slots.

Signed-off-by: Zack Rusin zackr@vmware.com Fixes: c8d4c18bfbc4 ("dma-buf/drivers: make reserving a shared slot mandatory v4")

Reviewed-by: Christian König christian.koenig@amd.com

---

drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c b/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c index 16f986b6cbea..79b30dc9d825 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c @@ -478,6 +478,10 @@ static int vmw_cotable_resize(struct vmw_resource *res, size_t new_size) vmw_bo_unreference(&old_buf); res->id = vcotbl->type;

• ret = dma_resv_reserve_fences(bo->base.resv, 1);
• if (unlikely(ret))

• goto out_wait;
  

• /* Release the pin acquired in vmw_bo_init */ ttm_bo_unpin(bo);