Merge tag 'drm-xe-next-fixes-2024-05-02' of...

Merge tag 'drm-xe-next-fixes-2024-05-02' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

Driver Changes:
- Fix for a backmerge going slightly wrong.
- An UAF fix
- Avoid a WA error on LNL.
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZjOijQA43zhu3SZ4@fedora

drivers/gpu/drm/xe/xe_vm.c

@@ -863,11 +863,6 @@ static void xe_vma_destroy_late(struct xe_vma *vma)
 		vma->ufence = NULL;
 	}
 
-	if (vma->ufence) {
-		xe_sync_ufence_put(vma->ufence);
-		vma->ufence = NULL;
-	}
-
 	if (xe_vma_is_userptr(vma)) {
 		struct xe_userptr_vma *uvma = to_userptr_vma(vma);
 		struct xe_userptr *userptr = &uvma->userptr;
@@ -1504,6 +1499,9 @@ static void xe_vm_free(struct drm_gpuvm *gpuvm)
 	/* xe_vm_close_and_put was not called? */
 	xe_assert(xe, !vm->size);
 
+	if (xe_vm_in_preempt_fence_mode(vm))
+		flush_work(&vm->preempt.rebind_work);
+
 	mutex_destroy(&vm->snap_mutex);
 
 	if (!(vm->flags & XE_VM_FLAG_MIGRATION))
@@ -2100,6 +2098,10 @@ vm_bind_ioctl_ops_create(struct xe_vm *vm, struct xe_bo *bo,
 		struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
 
 		if (__op->op == DRM_GPUVA_OP_MAP) {
+			op->map.immediate =
+				flags & DRM_XE_VM_BIND_FLAG_IMMEDIATE;
+			op->map.read_only =
+				flags & DRM_XE_VM_BIND_FLAG_READONLY;
 			op->map.is_null = flags & DRM_XE_VM_BIND_FLAG_NULL;
 			op->map.dumpable = flags & DRM_XE_VM_BIND_FLAG_DUMPABLE;
 			op->map.pat_index = pat_index;
@@ -2294,6 +2296,8 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct xe_exec_queue *q,
 		switch (op->base.op) {
 		case DRM_GPUVA_OP_MAP:
 		{
+			flags |= op->map.read_only ?
+				VMA_CREATE_FLAG_READ_ONLY : 0;
 			flags |= op->map.is_null ?
 				VMA_CREATE_FLAG_IS_NULL : 0;
 			flags |= op->map.dumpable ?
@@ -2438,7 +2442,7 @@ static int op_execute(struct drm_exec *exec, struct xe_vm *vm,
 	case DRM_GPUVA_OP_MAP:
 		err = xe_vm_bind(vm, vma, op->q, xe_vma_bo(vma),
 				 op->syncs, op->num_syncs,
-				 !xe_vm_in_fault_mode(vm),
+				 op->map.immediate || !xe_vm_in_fault_mode(vm),
 				 op->flags & XE_VMA_OP_FIRST,
 				 op->flags & XE_VMA_OP_LAST);
 		break;

drivers/gpu/drm/xe/xe_vm_types.h

@@ -269,6 +269,10 @@ struct xe_vm {
 struct xe_vma_op_map {
 	/** @vma: VMA to map */
 	struct xe_vma *vma;
+	/** @immediate: Immediate bind */
+	bool immediate;
+	/** @read_only: Read only */
+	bool read_only;
 	/** @is_null: is NULL binding */
 	bool is_null;
 	/** @dumpable: whether BO is dumped on GPU hang */

drivers/gpu/drm/xe/xe_wa.c

@@ -449,12 +449,7 @@ static const struct xe_rtp_entry_sr engine_was[] = {
 	  XE_RTP_RULES(GRAPHICS_VERSION(2004), FUNC(xe_rtp_match_first_render_or_compute)),
 	  XE_RTP_ACTIONS(SET(ROW_CHICKEN3, XE2_EUPEND_CHK_FLUSH_DIS))
 	},
-	{ XE_RTP_NAME("16021540221"),
-	  XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
-		       FUNC(xe_rtp_match_first_render_or_compute)),
-	  XE_RTP_ACTIONS(SET(ROW_CHICKEN4, DISABLE_TDL_PUSH))
-	},
-	{ XE_RTP_NAME("18034896535"),
+	{ XE_RTP_NAME("18034896535, 16021540221"), /* 16021540221: GRAPHICS_STEP(A0, B0) */
 	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(2001, 2004),
 		       FUNC(xe_rtp_match_first_render_or_compute)),
 	  XE_RTP_ACTIONS(SET(ROW_CHICKEN4, DISABLE_TDL_PUSH))