Re: [PATCH 03/15] dma-buf & drm/amdgpu: remove dma_resv workaround

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Am 20.04.22 um 21:28 schrieb Zack Rusin:
[SNIP]
To figure out what it is could you try the following code fragment:

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_validation.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_validation.c
index f46891012be3..a36f89d3f36d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_validation.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_validation.c
@@ -288,7 +288,7 @@ int vmw_validation_add_bo(struct
vmw_validation_context *ctx,
                  val_buf->bo = ttm_bo_get_unless_zero(&vbo->base);
                  if (!val_buf->bo)
                          return -ESRCH;
-               val_buf->num_shared = 0;
+               val_buf->num_shared = 16;
                  list_add_tail(&val_buf->head, &ctx->bo_list);
                  bo_node->as_mob = as_mob;
                  bo_node->cpu_blit = cpu_blit;
Fails the same BUG_ON with num_fences and max_fences == 0.

Thanks for testing this.

So the buffer object is not reserved through vmw_validation_bo_reserve(), but comes from somewhere else. Unfortunately I absolutely can't find where that's coming from.

Do you have some documentation howto setup vmwgfx? E.g. sample VM which I can download somewhere etc..

Thanks,
Christian.


z




[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux