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drm/amdkfd: CRIU export dmabuf handles for GTT BOs

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Export dmabuf handles for GTT BOs so that their contents can be accessed
using SDMA during checkpoint/restore.

v2: Squash in fix from David to set dmabuf handle to invalid for BOs
that cannot be accessed using SDMA during checkpoint/restore.

Signed-off-by: David Yat Sin <david.yatsin@amd.com>
Reviewed-by : Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
David Yat Sin 2022-03-08 14:00:50 -05:00 • committed by Alex Deucher
parent b38c074b2b
commit 65722ff618
2 changed files with 18 additions and 5 deletions
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5
include/uapi/linux/kfd_ioctl.h
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@ -33,9 +33,10 @@
* - 1.5 - Add SVM API
* - 1.6 - Query clear flags in SVM get_attr API
* - 1.7 - Checkpoint Restore (CRIU) API
* - 1.8 - CRIU - Support for SDMA transfers with GTT BOs
*/
#define KFD_IOCTL_MAJOR_VERSION 1
#define KFD_IOCTL_MINOR_VERSION 7
#define KFD_IOCTL_MINOR_VERSION 8
struct kfd_ioctl_get_version_args {
__u32 major_version; /* from KFD */
@ -195,6 +196,8 @@ struct kfd_ioctl_dbg_wave_control_args {
__u32 buf_size_in_bytes; /*including gpu_id and buf_size */
};
#define KFD_INVALID_FD 0xffffffff
/* Matching HSA_EVENTTYPE */
#define KFD_IOC_EVENT_SIGNAL 0
#define KFD_IOC_EVENT_NODECHANGE 1