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amdgpu_gds.h revision 1.2 
      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