drm/amdgpu: Move csa related code to separate file

In baremetal, also need to reserve csa for preemption.
so move the csa related code out of sriov.

Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.h
new file mode 100644
index 000000000000..ef2dfb0cd760
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2016 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.
+ *
+ * Author: Monk.liu@amd.com
+ */
+
+#ifndef AMDGPU_CSA_MANAGER_H
+#define AMDGPU_CSA_MANAGER_H
+
+#define AMDGPU_CSA_SIZE		(8 * 1024)
+
+uint32_t amdgpu_get_total_csa_size(struct amdgpu_device *adev);
+uint64_t amdgpu_csa_vaddr(struct amdgpu_device *adev);
+int amdgpu_allocate_static_csa(struct amdgpu_device *adev, struct amdgpu_bo **bo,
+				u32 domain, uint32_t size);
+int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,
+			  struct amdgpu_bo *bo, struct amdgpu_bo_va **bo_va,
+			  uint64_t csa_addr, uint32_t size);
+void amdgpu_free_static_csa(struct amdgpu_bo **bo);
+
+#endif