1 /* 2 * Copyright 2015 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 #ifndef __AMD_PCIE_H__ 24 #define __AMD_PCIE_H__ 25 26 /* Following flags shows PCIe link speed supported in driver which are decided by chipset and ASIC */ 27 #define CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 0x00010000 28 #define CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 0x00020000 29 #define CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3 0x00040000 30 #define CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4 0x00080000 31 #define CAIL_PCIE_LINK_SPEED_SUPPORT_MASK 0xFFFF0000 32 #define CAIL_PCIE_LINK_SPEED_SUPPORT_SHIFT 16 33 34 /* Following flags shows PCIe link speed supported by ASIC H/W.*/ 35 #define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 0x00000001 36 #define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 0x00000002 37 #define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3 0x00000004 38 #define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN4 0x00000008 39 #define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_MASK 0x0000FFFF 40 #define CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_SHIFT 0 41 42 /* gen: chipset 1/2, asic 1/2/3 */ 43 #define AMDGPU_DEFAULT_PCIE_GEN_MASK (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 \ 44 | CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 \ 45 | CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 \ 46 | CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 \ 47 | CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3) 48 49 /* Following flags shows PCIe lane width switch supported in driver which are decided by chipset and ASIC */ 50 #define CAIL_PCIE_LINK_WIDTH_SUPPORT_X1 0x00010000 51 #define CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 0x00020000 52 #define CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 0x00040000 53 #define CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 0x00080000 54 #define CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 0x00100000 55 #define CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 0x00200000 56 #define CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 0x00400000 57 #define CAIL_PCIE_LINK_WIDTH_SUPPORT_SHIFT 16 58 59 /* 1/2/4/8/16 lanes */ 60 #define AMDGPU_DEFAULT_PCIE_MLW_MASK (CAIL_PCIE_LINK_WIDTH_SUPPORT_X1 \ 61 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 \ 62 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 \ 63 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 \ 64 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X16) 65 66 #endif 67