1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_vm.h b/drivers/gpu/drm/xe/xe_vm.h
new file mode 100644
index 000000000000..3468ed9d0528
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_vm.h
@@ -0,0 +1,141 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#ifndef _XE_VM_H_
+#define _XE_VM_H_
+
+#include "xe_macros.h"
+#include "xe_map.h"
+#include "xe_vm_types.h"
+
+struct drm_device;
+struct drm_printer;
+struct drm_file;
+
+struct ttm_buffer_object;
+struct ttm_validate_buffer;
+
+struct xe_engine;
+struct xe_file;
+struct xe_sync_entry;
+
+struct xe_vm *xe_vm_create(struct xe_device *xe, u32 flags);
+void xe_vm_free(struct kref *ref);
+
+struct xe_vm *xe_vm_lookup(struct xe_file *xef, u32 id);
+int xe_vma_cmp_vma_cb(const void *key, const struct rb_node *node);
+
+static inline struct xe_vm *xe_vm_get(struct xe_vm *vm)
+{
+	kref_get(&vm->refcount);
+	return vm;
+}
+
+static inline void xe_vm_put(struct xe_vm *vm)
+{
+	kref_put(&vm->refcount, xe_vm_free);
+}
+
+int xe_vm_lock(struct xe_vm *vm, struct ww_acquire_ctx *ww,
+	       int num_resv, bool intr);
+
+void xe_vm_unlock(struct xe_vm *vm, struct ww_acquire_ctx *ww);
+
+static inline bool xe_vm_is_closed(struct xe_vm *vm)
+{
+	/* Only guaranteed not to change when vm->resv is held */
+	return !vm->size;
+}
+
+struct xe_vma *
+xe_vm_find_overlapping_vma(struct xe_vm *vm, const struct xe_vma *vma);
+
+#define xe_vm_assert_held(vm) dma_resv_assert_held(&(vm)->resv)
+
+u64 xe_vm_pdp4_descriptor(struct xe_vm *vm, struct xe_gt *full_gt);
+
+int xe_vm_create_ioctl(struct drm_device *dev, void *data,
+		       struct drm_file *file);
+int xe_vm_destroy_ioctl(struct drm_device *dev, void *data,
+			struct drm_file *file);
+int xe_vm_bind_ioctl(struct drm_device *dev, void *data,
+		     struct drm_file *file);
+
+void xe_vm_close_and_put(struct xe_vm *vm);
+
+static inline bool xe_vm_in_compute_mode(struct xe_vm *vm)
+{
+	return vm->flags & XE_VM_FLAG_COMPUTE_MODE;
+}
+
+static inline bool xe_vm_in_fault_mode(struct xe_vm *vm)
+{
+	return vm->flags & XE_VM_FLAG_FAULT_MODE;
+}
+
+static inline bool xe_vm_no_dma_fences(struct xe_vm *vm)
+{
+	return xe_vm_in_compute_mode(vm) || xe_vm_in_fault_mode(vm);
+}
+
+int xe_vm_add_compute_engine(struct xe_vm *vm, struct xe_engine *e);
+
+int xe_vm_userptr_pin(struct xe_vm *vm);
+
+int __xe_vm_userptr_needs_repin(struct xe_vm *vm);
+
+int xe_vm_userptr_check_repin(struct xe_vm *vm);
+
+struct dma_fence *xe_vm_rebind(struct xe_vm *vm, bool rebind_worker);
+
+int xe_vm_invalidate_vma(struct xe_vma *vma);
+
+int xe_vm_async_fence_wait_start(struct dma_fence *fence);
+
+extern struct ttm_device_funcs xe_ttm_funcs;
+
+struct ttm_buffer_object *xe_vm_ttm_bo(struct xe_vm *vm);
+
+static inline bool xe_vma_is_userptr(struct xe_vma *vma)
+{
+	return !vma->bo;
+}
+
+int xe_vma_userptr_pin_pages(struct xe_vma *vma);
+
+int xe_vma_userptr_check_repin(struct xe_vma *vma);
+
+/*
+ * XE_ONSTACK_TV is used to size the tv_onstack array that is input
+ * to xe_vm_lock_dma_resv() and xe_vm_unlock_dma_resv().
+ */
+#define XE_ONSTACK_TV 20
+int xe_vm_lock_dma_resv(struct xe_vm *vm, struct ww_acquire_ctx *ww,
+			struct ttm_validate_buffer *tv_onstack,
+			struct ttm_validate_buffer **tv,
+			struct list_head *objs,
+			bool intr,
+			unsigned int num_shared);
+
+void xe_vm_unlock_dma_resv(struct xe_vm *vm,
+			   struct ttm_validate_buffer *tv_onstack,
+			   struct ttm_validate_buffer *tv,
+			   struct ww_acquire_ctx *ww,
+			   struct list_head *objs);
+
+void xe_vm_fence_all_extobjs(struct xe_vm *vm, struct dma_fence *fence,
+			     enum dma_resv_usage usage);
+
+int xe_analyze_vm(struct drm_printer *p, struct xe_vm *vm, int gt_id);
+
+#if IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM)
+#define vm_dbg drm_dbg
+#else
+__printf(2, 3)
+static inline void vm_dbg(const struct drm_device *dev,
+			  const char *format, ...)
+{ /* noop */ }
+#endif
+#endif