2 * Copyright 2018 Advanced Micro Devices, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
25 #include "amdgpu_sdma.h"
27 #define AMDGPU_CSA_SDMA_SIZE 64
28 /* SDMA CSA reside in the 3rd page of CSA */
29 #define AMDGPU_CSA_SDMA_OFFSET (4096 * 2)
32 * GPU SDMA IP block helpers function.
35 struct amdgpu_sdma_instance *amdgpu_sdma_get_instance_from_ring(struct amdgpu_ring *ring)
37 struct amdgpu_device *adev = ring->adev;
40 for (i = 0; i < adev->sdma.num_instances; i++)
41 if (ring == &adev->sdma.instance[i].ring ||
42 ring == &adev->sdma.instance[i].page)
43 return &adev->sdma.instance[i];
48 int amdgpu_sdma_get_index_from_ring(struct amdgpu_ring *ring, uint32_t *index)
50 struct amdgpu_device *adev = ring->adev;
53 for (i = 0; i < adev->sdma.num_instances; i++) {
54 if (ring == &adev->sdma.instance[i].ring ||
55 ring == &adev->sdma.instance[i].page) {
64 uint64_t amdgpu_sdma_get_csa_mc_addr(struct amdgpu_ring *ring,
67 struct amdgpu_device *adev = ring->adev;
72 if (vmid == 0 || !amdgpu_mcbp)
75 r = amdgpu_sdma_get_index_from_ring(ring, &index);
80 csa_mc_addr = amdgpu_csa_vaddr(adev) +
81 AMDGPU_CSA_SDMA_OFFSET +
82 index * AMDGPU_CSA_SDMA_SIZE;