drivers/gpu/drm/amd/amdgpu/amdgpu_gds.h

   1 /*
   2  * Copyright 2014 Advanced Micro Devices, Inc.
   3  *
   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:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  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.
  21  *
  22  */
  23
  24 #ifndef __AMDGPU_GDS_H__
  25 #define __AMDGPU_GDS_H__
  26
  27 /* Because TTM request that alloacted buffer should be PAGE_SIZE aligned,
  28  * we should report GDS/GWS/OA size as PAGE_SIZE aligned
  29  * */
  30 #define AMDGPU_GDS_SHIFT        2
  31 #define AMDGPU_GWS_SHIFT        PAGE_SHIFT
  32 #define AMDGPU_OA_SHIFT         PAGE_SHIFT
  33
  34 struct amdgpu_ring;
  35 struct amdgpu_bo;
  36
  37 struct amdgpu_gds_asic_info {
  38         uint32_t        total_size;
  39         uint32_t        gfx_partition_size;
  40         uint32_t        cs_partition_size;
  41 };
  42
  43 struct amdgpu_gds {
  44         struct amdgpu_gds_asic_info     mem;
  45         struct amdgpu_gds_asic_info     gws;
  46         struct amdgpu_gds_asic_info     oa;
  47         /* At present, GDS, GWS and OA resources for gfx (graphics)
  48          * is always pre-allocated and available for graphics operation.
  49          * Such resource is shared between all gfx clients.
  50          * TODO: move this operation to user space
  51          * */
  52         struct amdgpu_bo*               gds_gfx_bo;
  53         struct amdgpu_bo*               gws_gfx_bo;
  54         struct amdgpu_bo*               oa_gfx_bo;
  55 };
  56
  57 struct amdgpu_gds_reg_offset {
  58         uint32_t        mem_base;
  59         uint32_t        mem_size;
  60         uint32_t        gws;
  61         uint32_t        oa;
  62 };
  63
  64 #endif /* __AMDGPU_GDS_H__ */