drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_aldebaran.c

   1 /*
   2  * Copyright 2020 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 #include "amdgpu.h"
  23 #include "amdgpu_amdkfd.h"
  24 #include "amdgpu_amdkfd_arcturus.h"
  25 #include "amdgpu_amdkfd_gfx_v9.h"
  26 #include "gc/gc_9_4_2_offset.h"
  27 #include "gc/gc_9_4_2_sh_mask.h"
  28 #include <uapi/linux/kfd_ioctl.h>
  29
  30 /*
  31  * Returns TRAP_EN, EXCP_EN and EXCP_REPLACE.
  32  *
  33  * restore_dbg_registers is ignored here but is a general interface requirement
  34  * for devices that support GFXOFF and where the RLC save/restore list
  35  * does not support hw registers for debugging i.e. the driver has to manually
  36  * initialize the debug mode registers after it has disabled GFX off during the
  37  * debug session.
  38  */
  39 static uint32_t kgd_aldebaran_enable_debug_trap(struct amdgpu_device *adev,
  40                                             bool restore_dbg_registers,
  41                                             uint32_t vmid)
  42 {
  43         uint32_t data = 0;
  44
  45         data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
  46         data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, 0);
  47         data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, 0);
  48
  49         return data;
  50 }
  51
  52 /* returns TRAP_EN, EXCP_EN and EXCP_REPLACE. */
  53 static uint32_t kgd_aldebaran_disable_debug_trap(struct amdgpu_device *adev,
  54                                                 bool keep_trap_enabled,
  55                                                 uint32_t vmid)
  56 {
  57         uint32_t data = 0;
  58
  59         data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, keep_trap_enabled);
  60         data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, 0);
  61         data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, 0);
  62
  63         return data;
  64 }
  65
  66 static int kgd_aldebaran_validate_trap_override_request(struct amdgpu_device *adev,
  67                                                         uint32_t trap_override,
  68                                                         uint32_t *trap_mask_supported)
  69 {
  70         *trap_mask_supported &= KFD_DBG_TRAP_MASK_FP_INVALID |
  71                                 KFD_DBG_TRAP_MASK_FP_INPUT_DENORMAL |
  72                                 KFD_DBG_TRAP_MASK_FP_DIVIDE_BY_ZERO |
  73                                 KFD_DBG_TRAP_MASK_FP_OVERFLOW |
  74                                 KFD_DBG_TRAP_MASK_FP_UNDERFLOW |
  75                                 KFD_DBG_TRAP_MASK_FP_INEXACT |
  76                                 KFD_DBG_TRAP_MASK_INT_DIVIDE_BY_ZERO |
  77                                 KFD_DBG_TRAP_MASK_DBG_ADDRESS_WATCH |
  78                                 KFD_DBG_TRAP_MASK_DBG_MEMORY_VIOLATION;
  79
  80         if (trap_override != KFD_DBG_TRAP_OVERRIDE_OR &&
  81                         trap_override != KFD_DBG_TRAP_OVERRIDE_REPLACE)
  82                 return -EPERM;
  83
  84         return 0;
  85 }
  86
  87 /* returns TRAP_EN, EXCP_EN and EXCP_RPLACE. */
  88 static uint32_t kgd_aldebaran_set_wave_launch_trap_override(struct amdgpu_device *adev,
  89                                         uint32_t vmid,
  90                                         uint32_t trap_override,
  91                                         uint32_t trap_mask_bits,
  92                                         uint32_t trap_mask_request,
  93                                         uint32_t *trap_mask_prev,
  94                                         uint32_t kfd_dbg_trap_cntl_prev)
  95
  96 {
  97         uint32_t data = 0;
  98
  99         *trap_mask_prev = REG_GET_FIELD(kfd_dbg_trap_cntl_prev, SPI_GDBG_PER_VMID_CNTL, EXCP_EN);
 100         trap_mask_bits = (trap_mask_bits & trap_mask_request) |
 101                 (*trap_mask_prev & ~trap_mask_request);
 102
 103         data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
 104         data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, trap_mask_bits);
 105         data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, trap_override);
 106
 107         return data;
 108 }
 109
 110 const struct kfd2kgd_calls aldebaran_kfd2kgd = {
 111         .program_sh_mem_settings = kgd_gfx_v9_program_sh_mem_settings,
 112         .set_pasid_vmid_mapping = kgd_gfx_v9_set_pasid_vmid_mapping,
 113         .init_interrupts = kgd_gfx_v9_init_interrupts,
 114         .hqd_load = kgd_gfx_v9_hqd_load,
 115         .hiq_mqd_load = kgd_gfx_v9_hiq_mqd_load,
 116         .hqd_sdma_load = kgd_arcturus_hqd_sdma_load,
 117         .hqd_dump = kgd_gfx_v9_hqd_dump,
 118         .hqd_sdma_dump = kgd_arcturus_hqd_sdma_dump,
 119         .hqd_is_occupied = kgd_gfx_v9_hqd_is_occupied,
 120         .hqd_sdma_is_occupied = kgd_arcturus_hqd_sdma_is_occupied,
 121         .hqd_destroy = kgd_gfx_v9_hqd_destroy,
 122         .hqd_sdma_destroy = kgd_arcturus_hqd_sdma_destroy,
 123         .wave_control_execute = kgd_gfx_v9_wave_control_execute,
 124         .get_atc_vmid_pasid_mapping_info =
 125                                 kgd_gfx_v9_get_atc_vmid_pasid_mapping_info,
 126         .set_vm_context_page_table_base = kgd_gfx_v9_set_vm_context_page_table_base,
 127         .get_cu_occupancy = kgd_gfx_v9_get_cu_occupancy,
 128         .enable_debug_trap = kgd_aldebaran_enable_debug_trap,
 129         .disable_debug_trap = kgd_aldebaran_disable_debug_trap,
 130         .validate_trap_override_request = kgd_aldebaran_validate_trap_override_request,
 131         .set_wave_launch_trap_override = kgd_aldebaran_set_wave_launch_trap_override,
 132         .get_iq_wait_times = kgd_gfx_v9_get_iq_wait_times,
 133         .build_grace_period_packet_info = kgd_gfx_v9_build_grace_period_packet_info,
 134         .program_trap_handler_settings = kgd_gfx_v9_program_trap_handler_settings,
 135 };