1 /* $NetBSD: amdgpu_gds.h,v 1.2 2018/08/27 04:58:19 riastradh Exp $ */ 2 3 /* 4 * Copyright 2014 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 */ 25 26 #ifndef __AMDGPU_GDS_H__ 27 #define __AMDGPU_GDS_H__ 28 29 /* Because TTM request that alloacted buffer should be PAGE_SIZE aligned, 30 * we should report GDS/GWS/OA size as PAGE_SIZE aligned 31 * */ 32 #define AMDGPU_GDS_SHIFT 2 33 #define AMDGPU_GWS_SHIFT PAGE_SHIFT 34 #define AMDGPU_OA_SHIFT PAGE_SHIFT 35 36 #define AMDGPU_PL_GDS TTM_PL_PRIV0 37 #define AMDGPU_PL_GWS TTM_PL_PRIV1 38 #define AMDGPU_PL_OA TTM_PL_PRIV2 39 40 #define AMDGPU_PL_FLAG_GDS TTM_PL_FLAG_PRIV0 41 #define AMDGPU_PL_FLAG_GWS TTM_PL_FLAG_PRIV1 42 #define AMDGPU_PL_FLAG_OA TTM_PL_FLAG_PRIV2 43 44 struct amdgpu_ring; 45 struct amdgpu_bo; 46 47 struct amdgpu_gds_asic_info { 48 uint32_t total_size; 49 uint32_t gfx_partition_size; 50 uint32_t cs_partition_size; 51 }; 52 53 struct amdgpu_gds { 54 struct amdgpu_gds_asic_info mem; 55 struct amdgpu_gds_asic_info gws; 56 struct amdgpu_gds_asic_info oa; 57 /* At present, GDS, GWS and OA resources for gfx (graphics) 58 * is always pre-allocated and available for graphics operation. 59 * Such resource is shared between all gfx clients. 60 * TODO: move this operation to user space 61 * */ 62 struct amdgpu_bo* gds_gfx_bo; 63 struct amdgpu_bo* gws_gfx_bo; 64 struct amdgpu_bo* oa_gfx_bo; 65 }; 66 67 struct amdgpu_gds_reg_offset { 68 uint32_t mem_base; 69 uint32_t mem_size; 70 uint32_t gws; 71 uint32_t oa; 72 }; 73 74 #endif /* __AMDGPU_GDS_H__ */ 75