From: Honglei Huang <[email protected]>
Add amdgpu_svm_range.h with GPU mapped range types and interfaces:
- enum amdgpu_svm_range_queue_state: NOT_QUEUED, IN_GC, PROCESSING
states for queue work
- struct amdgpu_svm_range: extends drm_gpusvm_range with gpu_mapped
state, queue_state, attribute flags, work queue node, pending
ops/pages, and validation timestamp
- enum amdgpu_svm_range_op: NONE, UNMAP operation types
- struct amdgpu_svm_range_op_ctx: dequeue context for GC processing
- Inline helper: amdgpu_svm_range_invalidate_gpu_mapping
- Range operations API declarations: find_or_insert, get_pages,
update_mapping, update_gpu_range, invalidate
Signed-off-by: Honglei Huang <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_svm_range.h | 165 ++++++++++++++++++
1 file changed, 165 insertions(+)
create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_svm_range.h
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_svm_range.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_svm_range.h
new file mode 100644
index 0000000000000..a079eff86020e
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_svm_range.h
@@ -0,0 +1,165 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright 2026 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __AMDGPU_SVM_RANGE_H__
+#define __AMDGPU_SVM_RANGE_H__
+
+#include <drm/drm_gpusvm.h>
+#include <drm/drm_pagemap.h>
+
+#include "amdgpu_svm.h"
+#include "amdgpu_vm.h"
+
+#include <linux/ktime.h>
+#include <linux/list.h>
+#include <linux/types.h>
+
+struct amdgpu_svm;
+struct amdgpu_svm_attr_range;
+struct amdgpu_svm_attrs;
+struct dma_fence;
+struct drm_exec;
+struct drm_gpusvm_notifier;
+struct drm_gpusvm_range;
+struct mmu_notifier_range;
+
+enum amdgpu_svm_range_queue_state {
+ AMDGPU_SVM_RANGE_NOT_QUEUED = 0,
+ AMDGPU_SVM_RANGE_IN_GC,
+ AMDGPU_SVM_RANGE_PROCESSING,
+};
+
+struct amdgpu_svm_range {
+ struct drm_gpusvm_range base;
+ struct list_head work_node;
+ bool gpu_mapped;
+ u8 queue_state;
+ u8 pending_ops;
+ unsigned long pending_start_page;
+ unsigned long pending_last_page;
+ uint32_t attr_flags;
+ ktime_t validate_timestamp;
+};
+
+static inline struct amdgpu_svm_range *
+to_amdgpu_svm_range(struct drm_gpusvm_range *range)
+{
+ return container_of(range, struct amdgpu_svm_range, base);
+}
+
+static inline void
+amdgpu_svm_range_invalidate_gpu_mapping(struct amdgpu_svm_range *range)
+{
+ WRITE_ONCE(range->gpu_mapped, false);
+}
+
+#define AMDGPU_SVM_RANGE_DEBUG(r__, op__)
\
+ AMDGPU_SVM_TRACE("%s: pasid=%u, gpusvm=%p, mapped=%d, " \
+ "seqno=%lu, range: [0x%lx-0x%lx]-" \
+ "0x%lx\n", \
+ (op__), to_amdgpu_svm((r__)->base.gpusvm)->vm->pasid, \
+ (r__)->base.gpusvm, READ_ONCE((r__)->gpu_mapped), \
+ (r__)->base.pages.notifier_seq, \
+ drm_gpusvm_range_start(&(r__)->base) >> PAGE_SHIFT, \
+ drm_gpusvm_range_end(&(r__)->base) >> PAGE_SHIFT, \
+ (drm_gpusvm_range_end(&(r__)->base) - \
+ drm_gpusvm_range_start(&(r__)->base)) >> PAGE_SHIFT)
