drm/amdgpu/virt: impl mailbox for ai

Implement mailbox protocol for AI so that guest vf can communicate
with GPU hypervisor.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h
new file mode 100644
index 000000000000..bf8ab8fd4367
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2014 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 __MXGPU_AI_H__
+#define __MXGPU_AI_H__
+
+#define AI_MAILBOX_TIMEDOUT     150000
+
+enum idh_request {
+        IDH_REQ_GPU_INIT_ACCESS = 1,
+        IDH_REL_GPU_INIT_ACCESS,
+        IDH_REQ_GPU_FINI_ACCESS,
+        IDH_REL_GPU_FINI_ACCESS,
+        IDH_REQ_GPU_RESET_ACCESS
+};
+
+enum idh_event {
+        IDH_CLR_MSG_BUF = 0,
+        IDH_READY_TO_ACCESS_GPU,
+        IDH_FLR_NOTIFICATION,
+        IDH_FLR_NOTIFICATION_CMPL,
+        IDH_EVENT_MAX
+};
+
+extern const struct amdgpu_virt_ops xgpu_ai_virt_ops;
+
+#endif