drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c

   1 /*
   2  * Copyright 2016 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 #include "amdgpu.h"
  24 #include "amdgpu_atombios.h"
  25 #include "nbio_v7_0.h"
  26
  27 #include "nbio/nbio_7_0_default.h"
  28 #include "nbio/nbio_7_0_offset.h"
  29 #include "nbio/nbio_7_0_sh_mask.h"
  30 #include "nbio/nbio_7_0_smn.h"
  31 #include "vega10_enum.h"
  32 #include <uapi/linux/kfd_ioctl.h>
  33
  34 #define smnNBIF_MGCG_CTRL_LCLK  0x1013a05c
  35
  36 static void nbio_v7_0_remap_hdp_registers(struct amdgpu_device *adev)
  37 {
  38         WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL,
  39                 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
  40         WREG32_SOC15(NBIO, 0, mmREMAP_HDP_REG_FLUSH_CNTL,
  41                 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
  42 }
  43
  44 static u32 nbio_v7_0_get_rev_id(struct amdgpu_device *adev)
  45 {
  46         u32 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0);
  47
  48         tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
  49         tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;
  50
  51         return tmp;
  52 }
  53
  54 static void nbio_v7_0_mc_access_enable(struct amdgpu_device *adev, bool enable)
  55 {
  56         if (enable)
  57                 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN,
  58                         BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
  59         else
  60                 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 0);
  61 }
  62
  63 static void nbio_v7_0_hdp_flush(struct amdgpu_device *adev,
  64                                 struct amdgpu_ring *ring)
  65 {
  66         if (!ring || !ring->funcs->emit_wreg)
  67                 WREG32_NO_KIQ((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
  68         else
  69                 amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
  70 }
  71
  72 static u32 nbio_v7_0_get_memsize(struct amdgpu_device *adev)
  73 {
  74         return RREG32_SOC15(NBIO, 0, mmRCC_CONFIG_MEMSIZE);
  75 }
  76
  77 static void nbio_v7_0_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
  78                         bool use_doorbell, int doorbell_index, int doorbell_size)
  79 {
  80         u32 reg = instance == 0 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE) :
  81                         SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE);
  82
  83         u32 doorbell_range = RREG32(reg);
  84
  85         if (use_doorbell) {
  86                 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index);
  87                 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, doorbell_size);
  88         } else
  89                 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 0);
  90
  91         WREG32(reg, doorbell_range);
  92 }
  93
  94 static void nbio_v7_0_enable_doorbell_aperture(struct amdgpu_device *adev,
  95                                                bool enable)
  96 {
  97         WREG32_FIELD15(NBIO, 0, RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN, enable ? 1 : 0);
  98 }
  99
 100 static void nbio_v7_0_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
 101                                                         bool enable)
 102 {
 103
 104 }
 105
 106 static void nbio_v7_0_ih_doorbell_range(struct amdgpu_device *adev,
 107                                         bool use_doorbell, int doorbell_index)
 108 {
 109         u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0 , mmBIF_IH_DOORBELL_RANGE);
 110
 111         if (use_doorbell) {
 112                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, OFFSET, doorbell_index);
 113                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 2);
 114         } else
 115                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 0);
 116
 117         WREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE, ih_doorbell_range);
 118 }
 119
 120 static uint32_t nbio_7_0_read_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset)
 121 {
 122         uint32_t data;
 123
 124         WREG32_SOC15(NBIO, 0, mmSYSHUB_INDEX, offset);
 125         data = RREG32_SOC15(NBIO, 0, mmSYSHUB_DATA);
 126
 127         return data;
 128 }
 129
 130 static void nbio_7_0_write_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset,
 131                                        uint32_t data)
 132 {
 133         WREG32_SOC15(NBIO, 0, mmSYSHUB_INDEX, offset);
 134         WREG32_SOC15(NBIO, 0, mmSYSHUB_DATA, data);
 135 }
 136
 137 static void nbio_v7_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 138                                                        bool enable)
 139 {
 140         uint32_t def, data;
 141
 142         /* NBIF_MGCG_CTRL_LCLK */
 143         def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK);
 144
 145         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
 146                 data |= NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK;
 147         else
 148                 data &= ~NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK;
 149
 150         if (def != data)
 151                 WREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK, data);
 152
 153         /* SYSHUB_MGCG_CTRL_SOCCLK */
 154         def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK);
 155
 156         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
 157                 data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK;
 158         else
 159                 data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK;
 160
 161         if (def != data)
 162                 nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK, data);
 163
 164         /* SYSHUB_MGCG_CTRL_SHUBCLK */
 165         def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK);
 166
 167         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
 168                 data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK;
 169         else
 170                 data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK;
 171
 172         if (def != data)
 173                 nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK, data);
 174 }
 175
 176 static void nbio_v7_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 177                                                       bool enable)
 178 {
 179         uint32_t def, data;
 180
 181         def = data = RREG32_PCIE(smnPCIE_CNTL2);
 182         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 183                 data |= (PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
 184                          PCIE_CNTL2__MST_MEM_LS_EN_MASK |
 185                          PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
 186         } else {
 187                 data &= ~(PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
 188                           PCIE_CNTL2__MST_MEM_LS_EN_MASK |
 189                           PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
 190         }
 191
 192         if (def != data)
 193                 WREG32_PCIE(smnPCIE_CNTL2, data);
 194 }
 195
 196 static void nbio_v7_0_get_clockgating_state(struct amdgpu_device *adev,
 197                                             u32 *flags)
 198 {
 199         int data;
 200
 201         /* AMD_CG_SUPPORT_BIF_MGCG */
 202         data = RREG32_PCIE(smnCPM_CONTROL);
 203         if (data & CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK)
 204                 *flags |= AMD_CG_SUPPORT_BIF_MGCG;
 205
 206         /* AMD_CG_SUPPORT_BIF_LS */
 207         data = RREG32_PCIE(smnPCIE_CNTL2);
 208         if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
 209                 *flags |= AMD_CG_SUPPORT_BIF_LS;
 210 }
 211
 212 static void nbio_v7_0_ih_control(struct amdgpu_device *adev)
 213 {
 214         u32 interrupt_cntl;
 215
 216         /* setup interrupt control */
 217         WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
 218         interrupt_cntl = RREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL);
 219         /* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
 220          * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
 221          */
 222         interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_DUMMY_RD_OVERRIDE, 0);
 223         /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
 224         interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_REQ_NONSNOOP_EN, 0);
 225         WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL, interrupt_cntl);
 226 }
 227
 228 static u32 nbio_v7_0_get_hdp_flush_req_offset(struct amdgpu_device *adev)
 229 {
 230         return SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_REQ);
 231 }
 232
 233 static u32 nbio_v7_0_get_hdp_flush_done_offset(struct amdgpu_device *adev)
 234 {
 235         return SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_DONE);
 236 }
 237
 238 static u32 nbio_v7_0_get_pcie_index_offset(struct amdgpu_device *adev)
 239 {
 240         return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_INDEX2);
 241 }
 242
 243 static u32 nbio_v7_0_get_pcie_data_offset(struct amdgpu_device *adev)
 244 {
 245         return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_DATA2);
 246 }
 247
 248 const struct nbio_hdp_flush_reg nbio_v7_0_hdp_flush_reg = {
 249         .ref_and_mask_cp0 = GPU_HDP_FLUSH_DONE__CP0_MASK,
 250         .ref_and_mask_cp1 = GPU_HDP_FLUSH_DONE__CP1_MASK,
 251         .ref_and_mask_cp2 = GPU_HDP_FLUSH_DONE__CP2_MASK,
 252         .ref_and_mask_cp3 = GPU_HDP_FLUSH_DONE__CP3_MASK,
 253         .ref_and_mask_cp4 = GPU_HDP_FLUSH_DONE__CP4_MASK,
 254         .ref_and_mask_cp5 = GPU_HDP_FLUSH_DONE__CP5_MASK,
 255         .ref_and_mask_cp6 = GPU_HDP_FLUSH_DONE__CP6_MASK,
 256         .ref_and_mask_cp7 = GPU_HDP_FLUSH_DONE__CP7_MASK,
 257         .ref_and_mask_cp8 = GPU_HDP_FLUSH_DONE__CP8_MASK,
 258         .ref_and_mask_cp9 = GPU_HDP_FLUSH_DONE__CP9_MASK,
 259         .ref_and_mask_sdma0 = GPU_HDP_FLUSH_DONE__SDMA0_MASK,
 260         .ref_and_mask_sdma1 = GPU_HDP_FLUSH_DONE__SDMA1_MASK,
 261 };
 262
 263 static void nbio_v7_0_detect_hw_virt(struct amdgpu_device *adev)
 264 {
 265         if (is_virtual_machine())       /* passthrough mode exclus sriov mod */
 266                 adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE;
 267 }
 268
 269 static void nbio_v7_0_init_registers(struct amdgpu_device *adev)
 270 {
 271
 272 }
 273
 274 const struct amdgpu_nbio_funcs nbio_v7_0_funcs = {
 275         .hdp_flush_reg = &nbio_v7_0_hdp_flush_reg,
 276         .get_hdp_flush_req_offset = nbio_v7_0_get_hdp_flush_req_offset,
 277         .get_hdp_flush_done_offset = nbio_v7_0_get_hdp_flush_done_offset,
 278         .get_pcie_index_offset = nbio_v7_0_get_pcie_index_offset,
 279         .get_pcie_data_offset = nbio_v7_0_get_pcie_data_offset,
 280         .get_rev_id = nbio_v7_0_get_rev_id,
 281         .mc_access_enable = nbio_v7_0_mc_access_enable,
 282         .hdp_flush = nbio_v7_0_hdp_flush,
 283         .get_memsize = nbio_v7_0_get_memsize,
 284         .sdma_doorbell_range = nbio_v7_0_sdma_doorbell_range,
 285         .enable_doorbell_aperture = nbio_v7_0_enable_doorbell_aperture,
 286         .enable_doorbell_selfring_aperture = nbio_v7_0_enable_doorbell_selfring_aperture,
 287         .ih_doorbell_range = nbio_v7_0_ih_doorbell_range,
 288         .update_medium_grain_clock_gating = nbio_v7_0_update_medium_grain_clock_gating,
 289         .update_medium_grain_light_sleep = nbio_v7_0_update_medium_grain_light_sleep,
 290         .get_clockgating_state = nbio_v7_0_get_clockgating_state,
 291         .ih_control = nbio_v7_0_ih_control,
 292         .init_registers = nbio_v7_0_init_registers,
 293         .detect_hw_virt = nbio_v7_0_detect_hw_virt,
 294         .remap_hdp_registers = nbio_v7_0_remap_hdp_registers,
 295 };