kernel/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c

   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 #include "kfd_device_queue_manager.h"
  25 #include "gca/gfx_8_0_enum.h"
  26 #include "gca/gfx_8_0_sh_mask.h"
  27 #include "gca/gfx_8_0_enum.h"
  28 #include "oss/oss_3_0_sh_mask.h"
  29
  30 static bool set_cache_memory_policy_vi(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);
  36 static int register_process_vi(struct device_queue_manager *dqm,
  37                                         struct qcm_process_device *qpd);
  38 static int initialize_cpsch_vi(struct device_queue_manager *dqm);
  39 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
  40                                 struct qcm_process_device *qpd);
  41
  42 void device_queue_manager_init_vi(struct device_queue_manager_asic_ops *ops)
  43 {
  44         ops->set_cache_memory_policy = set_cache_memory_policy_vi;
  45         ops->register_process = register_process_vi;
  46         ops->initialize = initialize_cpsch_vi;
  47         ops->init_sdma_vm = init_sdma_vm;
  48 }
  49
  50 static uint32_t compute_sh_mem_bases_64bit(unsigned int top_address_nybble)
  51 {
  52         /* In 64-bit mode, we can only control the top 3 bits of the LDS,
  53          * scratch and GPUVM apertures.
  54          * The hardware fills in the remaining 59 bits according to the
  55          * following pattern:
  56          * LDS:         X0000000'00000000 - X0000001'00000000 (4GB)
  57          * Scratch:     X0000001'00000000 - X0000002'00000000 (4GB)
  58          * GPUVM:       Y0010000'00000000 - Y0020000'00000000 (1TB)
  59          *
  60          * (where X/Y is the configurable nybble with the low-bit 0)
  61          *
  62          * LDS and scratch will have the same top nybble programmed in the
  63          * top 3 bits of SH_MEM_BASES.PRIVATE_BASE.
  64          * GPUVM can have a different top nybble programmed in the
  65          * top 3 bits of SH_MEM_BASES.SHARED_BASE.
  66          * We don't bother to support different top nybbles
  67          * for LDS/Scratch and GPUVM.
  68          */
  69
  70         BUG_ON((top_address_nybble & 1) || top_address_nybble > 0xE ||
  71                 top_address_nybble == 0);
  72
  73         return top_address_nybble << 12 |
  74                         (top_address_nybble << 12) <<
  75                         SH_MEM_BASES__SHARED_BASE__SHIFT;
  76 }
  77
  78 static bool set_cache_memory_policy_vi(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_CC :
  90                         MTYPE_NC;
  91
  92         ape1_mtype = (alternate_policy == cache_policy_coherent) ?
  93                         MTYPE_CC :
  94                         MTYPE_NC;
  95
  96         qpd->sh_mem_config = (qpd->sh_mem_config &
  97                         SH_MEM_CONFIG__ADDRESS_MODE_MASK) |
  98                 SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
  99                                 SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
 100                 default_mtype << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
 101                 ape1_mtype << SH_MEM_CONFIG__APE1_MTYPE__SHIFT |
 102                 SH_MEM_CONFIG__PRIVATE_ATC_MASK;
 103
 104         return true;
 105 }
 106
 107 static int register_process_vi(struct device_queue_manager *dqm,
 108                                         struct qcm_process_device *qpd)
 109 {
 110         struct kfd_process_device *pdd;
 111         unsigned int temp;
 112
 113         BUG_ON(!dqm || !qpd);
 114
 115         pdd = qpd_to_pdd(qpd);
 116
 117         /* check if sh_mem_config register already configured */
 118         if (qpd->sh_mem_config == 0) {
 119                 qpd->sh_mem_config =
 120                         SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
 121                                 SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
 122                         MTYPE_CC << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
 123                         MTYPE_CC << SH_MEM_CONFIG__APE1_MTYPE__SHIFT |
 124                         SH_MEM_CONFIG__PRIVATE_ATC_MASK;
 125
 126                 qpd->sh_mem_ape1_limit = 0;
 127                 qpd->sh_mem_ape1_base = 0;
 128         }
 129
 130         if (qpd->pqm->process->is_32bit_user_mode) {
 131                 temp = get_sh_mem_bases_32(pdd);
 132                 qpd->sh_mem_bases = temp << SH_MEM_BASES__SHARED_BASE__SHIFT;
 133                 qpd->sh_mem_config |= SH_MEM_ADDRESS_MODE_HSA32 <<
 134                                         SH_MEM_CONFIG__ADDRESS_MODE__SHIFT;
 135         } else {
 136                 temp = get_sh_mem_bases_nybble_64(pdd);
 137                 qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);
 138                 qpd->sh_mem_config |= SH_MEM_ADDRESS_MODE_HSA64 <<
 139                         SH_MEM_CONFIG__ADDRESS_MODE__SHIFT;
 140         }
 141
 142         pr_debug("kfd: is32bit process: %d sh_mem_bases nybble: 0x%X and register 0x%X\n",
 143                 qpd->pqm->process->is_32bit_user_mode, temp, qpd->sh_mem_bases);
 144
 145         return 0;
 146 }
 147
 148 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
 149                                 struct qcm_process_device *qpd)
 150 {
 151         uint32_t value = (1 << SDMA0_RLC0_VIRTUAL_ADDR__ATC__SHIFT);
 152
 153         if (q->process->is_32bit_user_mode)
 154                 value |= (1 << SDMA0_RLC0_VIRTUAL_ADDR__PTR32__SHIFT) |
 155                                 get_sh_mem_bases_32(qpd_to_pdd(qpd));
 156         else
 157                 value |= ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) <<
 158                                 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) &
 159                                 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK;
 160
 161         q->properties.sdma_vm_addr = value;
 162 }
 163
 164 static int initialize_cpsch_vi(struct device_queue_manager *dqm)
 165 {
 166         return 0;
 167 }