1 /* 2 * Copyright 2019 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 <linux/firmware.h> 24 #include <linux/module.h> 25 #include "amdgpu.h" 26 #include "amdgpu_psp.h" 27 #include "amdgpu_ucode.h" 28 #include "soc15_common.h" 29 #include "psp_v12_0.h" 30 31 #include "mp/mp_12_0_0_offset.h" 32 #include "mp/mp_12_0_0_sh_mask.h" 33 #include "gc/gc_9_0_offset.h" 34 #include "sdma0/sdma0_4_0_offset.h" 35 #include "nbio/nbio_7_4_offset.h" 36 37 MODULE_FIRMWARE("amdgpu/renoir_asd.bin"); 38 MODULE_FIRMWARE("amdgpu/renoir_ta.bin"); 39 MODULE_FIRMWARE("amdgpu/green_sardine_asd.bin"); 40 MODULE_FIRMWARE("amdgpu/green_sardine_ta.bin"); 41 42 /* address block */ 43 #define smnMP1_FIRMWARE_FLAGS 0x3010024 44 45 static int psp_v12_0_init_microcode(struct psp_context *psp) 46 { 47 struct amdgpu_device *adev = psp->adev; 48 char ucode_prefix[30]; 49 int err = 0; 50 DRM_DEBUG("\n"); 51 52 amdgpu_ucode_ip_version_decode(adev, MP0_HWIP, ucode_prefix, sizeof(ucode_prefix)); 53 54 err = psp_init_asd_microcode(psp, ucode_prefix); 55 if (err) 56 return err; 57 58 err = psp_init_ta_microcode(psp, ucode_prefix); 59 if (err) 60 return err; 61 62 /* only supported on renoir */ 63 if (!(adev->apu_flags & AMD_APU_IS_RENOIR)) 64 adev->psp.securedisplay_context.context.bin_desc.size_bytes = 0; 65 66 return 0; 67 } 68 69 static int psp_v12_0_bootloader_load_sysdrv(struct psp_context *psp) 70 { 71 int ret; 72 uint32_t psp_gfxdrv_command_reg = 0; 73 struct amdgpu_device *adev = psp->adev; 74 uint32_t sol_reg; 75 76 /* Check sOS sign of life register to confirm sys driver and sOS 77 * are already been loaded. 78 */ 79 sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); 80 if (sol_reg) 81 return 0; 82 83 /* Wait for bootloader to signify that is ready having bit 31 of C2PMSG_35 set to 1 */ 84 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35), 85 0x80000000, 0x80000000, 0); 86 if (ret) 87 return ret; 88 89 /* Copy PSP System Driver binary to memory */ 90 psp_copy_fw(psp, psp->sys.start_addr, psp->sys.size_bytes); 91 92 /* Provide the sys driver to bootloader */ 93 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36, 94 (uint32_t)(psp->fw_pri_mc_addr >> 20)); 95 psp_gfxdrv_command_reg = 1 << 16; 96 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, 97 psp_gfxdrv_command_reg); 98 99 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35), 100 0x80000000, 0x80000000, 0); 101 102 return ret; 103 } 104 105 static int psp_v12_0_bootloader_load_sos(struct psp_context *psp) 106 { 107 int ret; 108 unsigned int psp_gfxdrv_command_reg = 0; 109 struct amdgpu_device *adev = psp->adev; 110 uint32_t sol_reg; 111 112 /* Check sOS sign of life register to confirm sys driver and sOS 113 * are already been loaded. 114 */ 115 sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); 116 if (sol_reg) 117 return 0; 118 119 /* Wait for bootloader to signify that is ready having bit 31 of C2PMSG_35 set to 1 */ 120 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35), 121 0x80000000, 0x80000000, 0); 122 if (ret) 123 return ret; 124 125 /* Copy Secure OS binary to PSP memory */ 126 psp_copy_fw(psp, psp->sos.start_addr, psp->sos.size_bytes); 127 128 /* Provide the PSP secure OS to bootloader */ 129 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36, 130 (uint32_t)(psp->fw_pri_mc_addr >> 20)); 131 psp_gfxdrv_command_reg = 2 << 16; 132 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, 133 psp_gfxdrv_command_reg); 134 135 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_81), 136 RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81), 0, 137 PSP_WAITREG_CHANGED); 138 139 return ret; 140 } 141 142 static int psp_v12_0_ring_create(struct psp_context *psp, 143 enum psp_ring_type ring_type) 144 { 145 int ret = 0; 146 unsigned int psp_ring_reg = 0; 147 struct psp_ring *ring = &psp->km_ring; 148 struct amdgpu_device *adev = psp->adev; 149 150 /* Write low address of the ring to C2PMSG_69 */ 151 psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr); 152 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg); 153 /* Write high address of the ring to C2PMSG_70 */ 154 psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr); 155 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg); 156 /* Write size of ring to C2PMSG_71 */ 157 psp_ring_reg = ring->ring_size; 158 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg); 159 /* Write the ring initialization command to C2PMSG_64 */ 160 psp_ring_reg = ring_type; 161 psp_ring_reg = psp_ring_reg << 16; 162 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg); 163 164 /* Wait for response flag (bit 31) in C2PMSG_64 */ 165 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64), 166 MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0); 167 168 return ret; 169 } 170 171 static int psp_v12_0_ring_stop(struct psp_context *psp, 172 enum psp_ring_type ring_type) 173 { 174 int ret = 0; 175 struct amdgpu_device *adev = psp->adev; 176 177 /* Write the ring destroy command*/ 178 if (amdgpu_sriov_vf(adev)) 179 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101, 180 GFX_CTRL_CMD_ID_DESTROY_GPCOM_RING); 181 else 182 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, 183 GFX_CTRL_CMD_ID_DESTROY_RINGS); 184 185 /* Wait for response flag (bit 31) */ 186 if (amdgpu_sriov_vf(adev)) 187 ret = psp_wait_for( 188 psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101), 189 MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0); 190 else 191 ret = psp_wait_for( 192 psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64), 193 MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0); 194 195 return ret; 196 } 197 198 static int psp_v12_0_ring_destroy(struct psp_context *psp, 199 enum psp_ring_type ring_type) 200 { 201 int ret = 0; 202 struct psp_ring *ring = &psp->km_ring; 203 struct amdgpu_device *adev = psp->adev; 204 205 ret = psp_v12_0_ring_stop(psp, ring_type); 206 if (ret) 207 DRM_ERROR("Fail to stop psp ring\n"); 208 209 amdgpu_bo_free_kernel(&adev->firmware.rbuf, 210 &ring->ring_mem_mc_addr, 211 (void **)&ring->ring_mem); 212 213 return ret; 214 } 215 216 static int psp_v12_0_mode1_reset(struct psp_context *psp) 217 { 218 int ret; 219 uint32_t offset; 220 struct amdgpu_device *adev = psp->adev; 221 222 offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64); 223 224 ret = psp_wait_for(psp, offset, MBOX_TOS_READY_FLAG, 225 MBOX_TOS_READY_MASK, 0); 226 227 if (ret) { 228 DRM_INFO("psp is not working correctly before mode1 reset!\n"); 229 return -EINVAL; 230 } 231 232 /*send the mode 1 reset command*/ 233 WREG32(offset, GFX_CTRL_CMD_ID_MODE1_RST); 234 235 msleep(500); 236 237 offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_33); 238 239 ret = psp_wait_for(psp, offset, MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 240 0); 241 242 if (ret) { 243 DRM_INFO("psp mode 1 reset failed!\n"); 244 return -EINVAL; 245 } 246 247 DRM_INFO("psp mode1 reset succeed \n"); 248 249 return 0; 250 } 251 252 static uint32_t psp_v12_0_ring_get_wptr(struct psp_context *psp) 253 { 254 uint32_t data; 255 struct amdgpu_device *adev = psp->adev; 256 257 if (amdgpu_sriov_vf(adev)) 258 data = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102); 259 else 260 data = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67); 261 262 return data; 263 } 264 265 static void psp_v12_0_ring_set_wptr(struct psp_context *psp, uint32_t value) 266 { 267 struct amdgpu_device *adev = psp->adev; 268 269 if (amdgpu_sriov_vf(adev)) { 270 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, value); 271 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101, GFX_CTRL_CMD_ID_CONSUME_CMD); 272 } else 273 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67, value); 274 } 275 276 static const struct psp_funcs psp_v12_0_funcs = { 277 .init_microcode = psp_v12_0_init_microcode, 278 .bootloader_load_sysdrv = psp_v12_0_bootloader_load_sysdrv, 279 .bootloader_load_sos = psp_v12_0_bootloader_load_sos, 280 .ring_create = psp_v12_0_ring_create, 281 .ring_stop = psp_v12_0_ring_stop, 282 .ring_destroy = psp_v12_0_ring_destroy, 283 .mode1_reset = psp_v12_0_mode1_reset, 284 .ring_get_wptr = psp_v12_0_ring_get_wptr, 285 .ring_set_wptr = psp_v12_0_ring_set_wptr, 286 }; 287 288 void psp_v12_0_set_psp_funcs(struct psp_context *psp) 289 { 290 psp->funcs = &psp_v12_0_funcs; 291 } 292