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/*
* Copyright 2015 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.
*/
#ifndef __AMD_PCIE_H__
#define __AMD_PCIE_H__
/* Following flags shows PCIe link speed supported in driver which are decided by chipset and ASIC */
#define CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 0x00010000
#define CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 0x00020000
#define CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3 0x00040000
#define CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4 0x00080000
#define CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5 0x00100000
#define CAIL_PCIE_LINK_SPEED_SUPPORT_MASK 0xFFFF0000
#define CAIL_PCIE_LINK_SPEED_SUPPORT_SHIFT 16
/* Following flags shows PCIe link speed supported by ASIC H/W.*/
#define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 0x00000001
#define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 0x00000002
#define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3 0x00000004
#define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN4 0x00000008
#define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN5 0x00000010
#define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_MASK 0x0000FFFF
#define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_SHIFT 0
/* gen: chipset 1/2, asic 1/2/3 */
#define AMDGPU_DEFAULT_PCIE_GEN_MASK (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 \
| CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 \
| CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 \
| CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 \
| CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3)
/* Following flags shows PCIe lane width switch supported in driver which are decided by chipset and ASIC */
#define CAIL_PCIE_LINK_WIDTH_SUPPORT_X1 0x00010000
#define CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 0x00020000
#define CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 0x00040000
#define CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 0x00080000
#define CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 0x00100000
#define CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 0x00200000
#define CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 0x00400000
#define CAIL_PCIE_LINK_WIDTH_SUPPORT_SHIFT 16
/* 1/2/4/8/16 lanes */
#define AMDGPU_DEFAULT_PCIE_MLW_MASK (CAIL_PCIE_LINK_WIDTH_SUPPORT_X1 \
| CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 \
| CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 \
| CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 \
| CAIL_PCIE_LINK_WIDTH_SUPPORT_X16)
#endif
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