1// SPDX-License-Identifier: GPL-2.0 OR MIT 2/* 3 * Copyright 2014-2022 Advanced Micro Devices, Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 */ 24 25#include "kfd_device_queue_manager.h" 26#include "cik_regs.h" 27#include "oss/oss_2_4_sh_mask.h" 28#include "gca/gfx_7_2_sh_mask.h" 29 30static bool set_cache_memory_policy_cik(struct device_queue_manager *dqm, 31 struct qcm_process_device *qpd, 32 enum cache_policy default_policy, 33 enum cache_policy alternate_policy, 34 void __user *alternate_aperture_base, 35 uint64_t alternate_aperture_size); 36static int update_qpd_cik(struct device_queue_manager *dqm, 37 struct qcm_process_device *qpd); 38static void init_sdma_vm(struct device_queue_manager *dqm, 39 struct queue *q, 40 struct qcm_process_device *qpd); 41 42void device_queue_manager_init_cik( 43 struct device_queue_manager_asic_ops *asic_ops) 44{ 45 asic_ops->set_cache_memory_policy = set_cache_memory_policy_cik; 46 asic_ops->update_qpd = update_qpd_cik; 47 asic_ops->init_sdma_vm = init_sdma_vm; 48 asic_ops->mqd_manager_init = mqd_manager_init_cik; 49} 50 51static uint32_t compute_sh_mem_bases_64bit(unsigned int top_address_nybble) 52{ 53 /* In 64-bit mode, we can only control the top 3 bits of the LDS, 54 * scratch and GPUVM apertures. 55 * The hardware fills in the remaining 59 bits according to the 56 * following pattern: 57 * LDS: X0000000'00000000 - X0000001'00000000 (4GB) 58 * Scratch: X0000001'00000000 - X0000002'00000000 (4GB) 59 * GPUVM: Y0010000'00000000 - Y0020000'00000000 (1TB) 60 * 61 * (where X/Y is the configurable nybble with the low-bit 0) 62 * 63 * LDS and scratch will have the same top nybble programmed in the 64 * top 3 bits of SH_MEM_BASES.PRIVATE_BASE. 65 * GPUVM can have a different top nybble programmed in the 66 * top 3 bits of SH_MEM_BASES.SHARED_BASE. 67 * We don't bother to support different top nybbles 68 * for LDS/Scratch and GPUVM. 69 */ 70 71 WARN_ON((top_address_nybble & 1) || top_address_nybble > 0xE || 72 top_address_nybble == 0); 73 74 return PRIVATE_BASE(top_address_nybble << 12) | 75 SHARED_BASE(top_address_nybble << 12); 76} 77 78static bool set_cache_memory_policy_cik(struct device_queue_manager *dqm, 79 struct qcm_process_device *qpd, 80 enum cache_policy default_policy, 81 enum cache_policy alternate_policy, 82 void __user *alternate_aperture_base, 83 uint64_t alternate_aperture_size) 84{ 85 uint32_t default_mtype; 86 uint32_t ape1_mtype; 87 88 default_mtype = (default_policy == cache_policy_coherent) ? 89 MTYPE_NONCACHED : 90 MTYPE_CACHED; 91 92 ape1_mtype = (alternate_policy == cache_policy_coherent) ? 93 MTYPE_NONCACHED : 94 MTYPE_CACHED; 95 96 qpd->sh_mem_config = (qpd->sh_mem_config & PTR32) 97 | ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED) 98 | DEFAULT_MTYPE(default_mtype) 99 | APE1_MTYPE(ape1_mtype); 100 101 return true; 102} 103 104static int update_qpd_cik(struct device_queue_manager *dqm, 105 struct qcm_process_device *qpd) 106{ 107 struct kfd_process_device *pdd; 108 unsigned int temp; 109 110 pdd = qpd_to_pdd(qpd); 111 112 /* check if sh_mem_config register already configured */ 113 if (qpd->sh_mem_config == 0) { 114 qpd->sh_mem_config = 115 ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED) | 116 DEFAULT_MTYPE(MTYPE_NONCACHED) | 117 APE1_MTYPE(MTYPE_NONCACHED); 118 qpd->sh_mem_ape1_limit = 0; 119 qpd->sh_mem_ape1_base = 0; 120 } 121 122 /* On dGPU we're always in GPUVM64 addressing mode with 64-bit 123 * aperture addresses. 124 */ 125 temp = get_sh_mem_bases_nybble_64(pdd); 126 qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp); 127 128 pr_debug("is32bit process: %d sh_mem_bases nybble: 0x%X and register 0x%X\n", 129 qpd->pqm->process->is_32bit_user_mode, temp, qpd->sh_mem_bases); 130 131 return 0; 132} 133 134static void init_sdma_vm(struct device_queue_manager *dqm, 135 struct queue *q, 136 struct qcm_process_device *qpd) 137{ 138 /* On dGPU we're always in GPUVM64 addressing mode with 64-bit 139 * aperture addresses. 140 */ 141 q->properties.sdma_vm_addr = 142 ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) << 143 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) & 144 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK; 145} 146