diff options
| author | Thomas Hellström <thomas.hellstrom@linux.intel.com> | 2023-11-29 14:54:57 +0000 |
|---|---|---|
| committer | Francois Dugast <francois.dugast@intel.com> | 2023-12-05 09:26:37 +0100 |
| commit | dc71419700526bebcfe336b12efb3f3c5b258ccf (patch) | |
| tree | b3b525ca3bf24897f1f09c8497911f18bb4d94bc /include/drm-uapi | |
| parent | 56b96d90c93d108765d8c25781c21c231fb4e564 (diff) | |
tests/intel/xe: Adjust to KMD uAPI changes for long-running VMs
Currently we're using "compute mode" for long running VMs using
using preempt-fences for memory management, and "fault mode" for long
running VMs using page faults.
Change this to use the terminology "long-running" abbreviated as LR for
long-running VMs. These VMs can then either be in preempt-fence mode or
fault mode. The user can force fault mode at creation time, but otherwise
the driver can choose whether to use or not use fault mode mode for
long-running vms depending on the device capabilities.
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Francois Dugast <francois.dugast@intel.com>
Cc: Oak Zeng <oak.zeng@intel.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Francois Dugast <francois.dugast@intel.com>
Diffstat (limited to 'include/drm-uapi')
| -rw-r--r-- | include/drm-uapi/xe_drm.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/include/drm-uapi/xe_drm.h b/include/drm-uapi/xe_drm.h index aa524f26e..43be76f4d 100644 --- a/include/drm-uapi/xe_drm.h +++ b/include/drm-uapi/xe_drm.h @@ -647,8 +647,29 @@ struct drm_xe_vm_create { __u64 extensions; #define DRM_XE_VM_CREATE_FLAG_SCRATCH_PAGE (1 << 0) -#define DRM_XE_VM_CREATE_FLAG_COMPUTE_MODE (1 << 1) + /* + * An LR, or Long Running VM accepts exec submissions + * to its exec_queues that don't have an upper time limit on + * the job execution time. But exec submissions to these + * don't allow any of the flags DRM_XE_SYNC_FLAG_SYNCOBJ, + * DRM_XE_SYNC_FLAG_TIMELINE_SYNCOBJ, DRM_XE_SYNC_FLAG_DMA_BUF, + * used as out-syncobjs, that is, together with DRM_XE_SYNC_FLAG_SIGNAL. + * LR VMs can be created in recoverable page-fault mode using + * DRM_XE_VM_CREATE_FLAG_FAULT_MODE, if the device supports it. + * If that flag is omitted, the UMD can not rely on the slightly + * different per-VM overcommit semantics that are enabled by + * DRM_XE_VM_CREATE_FLAG_FAULT_MODE (see below), but KMD may + * still enable recoverable pagefaults if supported by the device. + */ +#define DRM_XE_VM_CREATE_FLAG_LR_MODE (1 << 1) #define DRM_XE_VM_CREATE_FLAG_ASYNC_DEFAULT (1 << 2) + /* + * DRM_XE_VM_CREATE_FLAG_FAULT_MODE requires also + * DRM_XE_VM_CREATE_FLAG_LR_MODE. It allows memory to be allocated + * on demand when accessed, and also allows per-VM overcommit of memory. + * The xe driver internally uses recoverable pagefaults to implement + * this. + */ #define DRM_XE_VM_CREATE_FLAG_FAULT_MODE (1 << 3) /** @flags: Flags */ __u32 flags; |