[PATCH v3 6/9] drm/xe: Add VM.uapi_flags to VM snapshot capture

[Matthew Brost]

Add VM.uapi_flags to VM snapshot capture VM snapshot capture. This is
useful information for debug and will help build a robust GPU hang
replay tool.

The current format is:

VM.uapi_flags: 0x%x

Cc: José Roberto de Souza <jose.souza at intel.com>
Signed-off-by: Matthew Brost <matthew.brost at intel.com>
---
 drivers/gpu/drm/xe/xe_vm.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
index 94bf056da5b9..b51598d39149 100644
--- a/drivers/gpu/drm/xe/xe_vm.c
+++ b/drivers/gpu/drm/xe/xe_vm.c
@@ -3705,6 +3705,7 @@ int xe_vm_validate_protected(struct xe_vm *vm)
 }
 
 struct xe_vm_snapshot {
+	int uapi_flags;
 	unsigned long num_snaps;
 	struct {
 		u64 ofs, bo_ofs;
@@ -3743,6 +3744,13 @@ struct xe_vm_snapshot *xe_vm_snapshot_capture(struct xe_vm *vm)
 		goto out_unlock;
 	}
 
+	if (vm->flags & XE_VM_FLAG_FAULT_MODE)
+		snap->uapi_flags |= DRM_XE_VM_CREATE_FLAG_FAULT_MODE;
+	if (vm->flags & XE_VM_FLAG_LR_MODE)
+		snap->uapi_flags |= DRM_XE_VM_CREATE_FLAG_LR_MODE;
+	if (vm->flags & XE_VM_FLAG_SCRATCH_PAGE)
+		snap->uapi_flags |= DRM_XE_VM_CREATE_FLAG_SCRATCH_PAGE;
+
 	snap->num_snaps = num_snaps;
 	i = 0;
 	drm_gpuvm_for_each_va(gpuva, &vm->gpuvm) {
@@ -3856,6 +3864,7 @@ void xe_vm_snapshot_print(struct xe_vm_snapshot *snap, struct drm_printer *p)
 		return;
 	}
 
+	drm_printf(p, "VM.uapi_flags: 0x%x\n", snap->uapi_flags);
 	for (i = 0; i < snap->num_snaps; i++) {
 		drm_printf(p, "[%llx].length: 0x%lx\n", snap->snap[i].ofs, snap->snap[i].len);
 
-- 
2.34.1