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[4/9] drm/vmwgfx: Fix incorrect command header offset at restart

Message ID 1502299384-63140-5-git-send-email-syeh@vmware.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sinclair Yeh Aug. 9, 2017, 5:22 p.m. UTC 
From: Thomas Hellstrom <thellstrom@vmware.com>

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 <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c
index a916864..ce92198 100644
--- 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 work_struct *work)
 		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;
 	}