From 2e0904efc945ed5b04a9b251b9cefdd6754f5e15 Mon Sep 17 00:00:00 2001 From: Pranjal Ramajor Asha Kanojiya Date: Wed, 17 May 2023 13:35:37 -0600 Subject: accel/qaic: Validate if BO is sliced before slicing QAIC_ATTACH_SLICE_BO attaches slicing configuration to a BO. Validate if given BO is already sliced. An already sliced BO cannot be sliced again. Fixes: ff13be830333 ("accel/qaic: Add datapath") Signed-off-by: Pranjal Ramajor Asha Kanojiya Reviewed-by: Carl Vanderlip Reviewed-by: Jeffrey Hugo Signed-off-by: Jeffrey Hugo Link: https://patchwork.freedesktop.org/patch/msgid/20230517193540.14323-3-quic_jhugo@quicinc.com --- drivers/accel/qaic/qaic_data.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/accel/qaic') diff --git a/drivers/accel/qaic/qaic_data.c b/drivers/accel/qaic/qaic_data.c index 5f71d76dd3a6..e672dd244703 100644 --- a/drivers/accel/qaic/qaic_data.c +++ b/drivers/accel/qaic/qaic_data.c @@ -1001,6 +1001,11 @@ int qaic_attach_slice_bo_ioctl(struct drm_device *dev, void *data, struct drm_fi bo = to_qaic_bo(obj); + if (bo->sliced) { + ret = -EINVAL; + goto put_bo; + } + ret = qaic_prepare_bo(qdev, bo, &args->hdr); if (ret) goto put_bo; -- cgit v1.2.3