Whenever command verifier function returns with an error, print a debug message using VMW_DEBUG_USER. This will make sure failing commands can be easily tracked for debugging purpose.
Signed-off-by: Deepak Rawat drawat@vmware.com Reviewed-by: Thomas Hellstrom thellstrom@vmware.com --- drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index 9362670af03c..9df334340146 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -3287,8 +3287,11 @@ static int vmw_cmd_check(struct vmw_private *dev_priv, goto out_new;
ret = entry->func(dev_priv, sw_context, header); - if (unlikely(ret != 0)) - goto out_invalid; + if (unlikely(ret != 0)) { + VMW_DEBUG_USER("SVGA3D command: %d failed with error %d\n", + cmd_id + SVGA_3D_CMD_BASE, ret); + return ret; + }
return 0; out_invalid: