From: Thomas Hellstrom Date: Thu, 24 Aug 2017 08:06:31 +0200 Subject: drm/vmwgfx: Fix incorrect command header offset at restart Git-commit: 1f1a36cc4d4986a800018f1d3eed94a4e92a576f Patch-mainline: v4.14-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 Sometimes it appears like the device modifies the command header offset member. So explicitly clear it when restarting after an error. Signed-off-by: Thomas Hellstrom Reviewed-by: Sinclair Yeh Acked-by: Petr Tesarik --- drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c @@ -563,6 +563,7 @@ static void vmw_cmdbuf_work_func(struct entry->cmd += new_start_offset; cb_hdr->length -= new_start_offset; cb_hdr->errorOffset = 0; + cb_hdr->offset = 0; list_add_tail(&entry->list, &restart_head[entry->cb_context]); man->ctx[entry->cb_context].block_submission = true; }