Bug Summary

File:dev/pci/drm/amd/pm/swsmu/smu_cmn.c
Warning:line 121, column 2
Undefined or garbage value returned to caller

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.4 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name smu_cmn.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -ffp-contract=on -fno-rounding-math -mconstructor-aliases -ffreestanding -mcmodel=kernel -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -target-feature -sse2 -target-feature -sse -target-feature -3dnow -target-feature -mmx -target-feature +save-args -target-feature +retpoline-external-thunk -disable-red-zone -no-implicit-float -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -nostdsysteminc -nobuiltininc -resource-dir /usr/local/llvm16/lib/clang/16 -I /usr/src/sys -I /usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -I /usr/src/sys/arch -I /usr/src/sys/dev/pci/drm/include -I /usr/src/sys/dev/pci/drm/include/uapi -I /usr/src/sys/dev/pci/drm/amd/include/asic_reg -I /usr/src/sys/dev/pci/drm/amd/include -I /usr/src/sys/dev/pci/drm/amd/amdgpu -I /usr/src/sys/dev/pci/drm/amd/display -I /usr/src/sys/dev/pci/drm/amd/display/include -I /usr/src/sys/dev/pci/drm/amd/display/dc -I /usr/src/sys/dev/pci/drm/amd/display/amdgpu_dm -I /usr/src/sys/dev/pci/drm/amd/pm/inc -I /usr/src/sys/dev/pci/drm/amd/pm/legacy-dpm -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu11 -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu12 -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu13 -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/inc -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/hwmgr -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/smumgr -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc/pmfw_if -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc/hw -I /usr/src/sys/dev/pci/drm/amd/display/dc/clk_mgr -I /usr/src/sys/dev/pci/drm/amd/display/modules/inc -I /usr/src/sys/dev/pci/drm/amd/display/modules/hdcp -I /usr/src/sys/dev/pci/drm/amd/display/dmub/inc -I /usr/src/sys/dev/pci/drm/i915 -D DDB -D DIAGNOSTIC -D KTRACE -D ACCOUNTING -D KMEMSTATS -D PTRACE -D POOL_DEBUG -D CRYPTO -D SYSVMSG -D SYSVSEM -D SYSVSHM -D UVM_SWAP_ENCRYPT -D FFS -D FFS2 -D FFS_SOFTUPDATES -D UFS_DIRHASH -D QUOTA -D EXT2FS -D MFS -D NFSCLIENT -D NFSSERVER -D CD9660 -D UDF -D MSDOSFS -D FIFO -D FUSE -D SOCKET_SPLICE -D TCP_ECN -D TCP_SIGNATURE -D INET6 -D IPSEC -D PPP_BSDCOMP -D PPP_DEFLATE -D PIPEX -D MROUTING -D MPLS -D BOOT_CONFIG -D USER_PCICONF -D APERTURE -D MTRR -D NTFS -D SUSPEND -D HIBERNATE -D PCIVERBOSE -D USBVERBOSE -D WSDISPLAY_COMPAT_USL -D WSDISPLAY_COMPAT_RAWKBD -D WSDISPLAY_DEFAULTSCREENS=6 -D X86EMU -D ONEWIREVERBOSE -D MULTIPROCESSOR -D MAXUSERS=80 -D _KERNEL -O2 -Wno-pointer-sign -Wno-address-of-packed-member -Wno-constant-conversion -Wno-unused-but-set-variable -Wno-gnu-folding-constant -fdebug-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fcf-protection=branch -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -o /home/ben/Projects/scan/2024-01-11-110808-61670-1 -x c /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu_cmn.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
23#define SWSMU_CODE_LAYER_L4
24
25#include "amdgpu.h"
26#include "amdgpu_smu.h"
27#include "smu_cmn.h"
28#include "soc15_common.h"
29
30/*
31 * DO NOT use these for err/warn/info/debug messages.
32 * Use dev_err, dev_warn, dev_info and dev_dbg instead.
33 * They are more MGPU friendly.
34 */
35#undef pr_err
36#undef pr_warn
37#undef pr_info
38#undef pr_debug
39
40#define MP1_C2PMSG_90__CONTENT_MASK0xFFFFFFFFL 0xFFFFFFFFL
41
42#undef __SMU_DUMMY_MAP
43#define __SMU_DUMMY_MAP(type)"type" #type
44static const char * const __smu_message_names[] = {
45 SMU_MESSAGE_TYPES"TestMessage", "GetSmuVersion", "GetDriverIfVersion", "SetAllowedFeaturesMaskLow"
, "SetAllowedFeaturesMaskHigh", "EnableAllSmuFeatures", "DisableAllSmuFeatures"
, "EnableSmuFeaturesLow", "EnableSmuFeaturesHigh", "DisableSmuFeaturesLow"
, "DisableSmuFeaturesHigh", "GetEnabledSmuFeatures", "GetEnabledSmuFeaturesLow"
, "GetEnabledSmuFeaturesHigh", "SetWorkloadMask", "SetPptLimit"
, "SetDriverDramAddrHigh", "SetDriverDramAddrLow", "SetToolsDramAddrHigh"
, "SetToolsDramAddrLow", "TransferTableSmu2Dram", "TransferTableDram2Smu"
, "UseDefaultPPTable", "UseBackupPPTable", "RunBtc", "RequestI2CBus"
, "ReleaseI2CBus", "SetFloorSocVoltage", "SoftReset", "StartBacoMonitor"
, "CancelBacoMonitor", "EnterBaco", "SetSoftMinByFreq", "SetSoftMaxByFreq"
, "SetHardMinByFreq", "SetHardMaxByFreq", "GetMinDpmFreq", "GetMaxDpmFreq"
, "GetDpmFreqByIndex", "GetDpmClockFreq", "GetSsVoltageByDpm"
, "SetMemoryChannelConfig", "SetGeminiMode", "SetGeminiApertureHigh"
, "SetGeminiApertureLow", "SetMinLinkDpmByIndex", "OverridePcieParameters"
, "OverDriveSetPercentage", "SetMinDeepSleepDcefclk", "ReenableAcDcInterrupt"
, "AllowIHHostInterrupt", "NotifyPowerSource", "SetUclkFastSwitch"
, "SetUclkDownHyst", "GfxDeviceDriverReset", "GetCurrentRpm",
"SetVideoFps", "SetTjMax", "SetFanTemperatureTarget", "PrepareMp1ForUnload"
, "DramLogSetDramAddrHigh", "DramLogSetDramAddrLow", "DramLogSetDramSize"
, "SetFanMaxRpm", "SetFanMinPwm", "ConfigureGfxDidt", "NumOfDisplays"
, "RemoveMargins", "ReadSerialNumTop32", "ReadSerialNumBottom32"
, "SetSystemVirtualDramAddrHigh", "SetSystemVirtualDramAddrLow"
, "WaflTest", "SetFclkGfxClkRatio", "AllowGfxOff", "DisallowGfxOff"
, "GetPptLimit", "GetDcModeMaxDpmFreq", "GetDebugData", "SetXgmiMode"
, "RunAfllBtc", "ExitBaco", "PrepareMp1ForReset", "PrepareMp1ForShutdown"
, "SetMGpuFanBoostLimitRpm", "GetAVFSVoltageByDpm", "PowerUpVcn"
, "PowerDownVcn", "PowerUpJpeg", "PowerDownJpeg", "BacoAudioD3PME"
, "ArmD3", "RunDcBtc", "RunGfxDcBtc", "RunSocDcBtc", "SetMemoryChannelEnable"
, "SetDfSwitchType", "GetVoltageByDpm", "GetVoltageByDpmOverdrive"
, "PowerUpVcn0", "PowerDownVcn0", "PowerUpVcn1", "PowerDownVcn1"
, "PowerUpGfx", "PowerDownIspByTile", "PowerUpIspByTile", "PowerDownSdma"
, "PowerUpSdma", "SetHardMinIspclkByFreq", "SetHardMinVcn", "SetAllowFclkSwitch"
, "SetMinVideoGfxclkFreq", "ActiveProcessNotify", "SetCustomPolicy"
, "QueryPowerLimit", "SetGfxclkOverdriveByFreqVid", "SetHardMinDcfclkByFreq"
, "SetHardMinSocclkByFreq", "ControlIgpuATS", "SetMinVideoFclkFreq"
, "SetMinDeepSleepDcfclk", "ForcePowerDownGfx", "SetPhyclkVoltageByFreq"
, "SetDppclkVoltageByFreq", "SetSoftMinVcn", "EnablePostCode"
, "GetGfxclkFrequency", "GetFclkFrequency", "GetMinGfxclkFrequency"
, "GetMaxGfxclkFrequency", "SetGfxCGPG", "SetSoftMaxGfxClk", "SetHardMinGfxClk"
, "SetSoftMaxSocclkByFreq", "SetSoftMaxFclkByFreq", "SetSoftMaxVcn"
, "PowerGateMmHub", "UpdatePmeRestore", "GpuChangeState", "SetPowerLimitPercentage"
, "ForceGfxContentSave", "EnableTmdp48MHzRefclkPwrDown", "PowerGateAtHub"
, "SetSoftMinJpeg", "SetHardMinFclkByFreq", "DFCstateControl"
, "GmiPwrDnControl", "spare", "SetNumBadHbmPagesRetired", "GetGmiPwrDnHyst"
, "SetGmiPwrDnHyst", "EnterGfxoff", "ExitGfxoff", "SetExecuteDMATest"
, "DAL_DISABLE_DUMMY_PSTATE_CHANGE", "DAL_ENABLE_DUMMY_PSTATE_CHANGE"
, "SET_DRIVER_DUMMY_TABLE_DRAM_ADDR_HIGH", "SET_DRIVER_DUMMY_TABLE_DRAM_ADDR_LOW"
, "GET_UMC_FW_WA", "Mode1Reset", "RlcPowerNotify", "SetHardMinIspiclkByFreq"
, "SetHardMinIspxclkByFreq", "SetSoftMinSocclkByFreq", "PowerUpCvip"
, "PowerDownCvip", "EnableGfxOff", "DisableGfxOff", "SetSoftMinGfxclk"
, "SetSoftMinFclk", "GetThermalLimit", "GetCurrentTemperature"
, "GetCurrentPower", "GetCurrentVoltage", "GetCurrentCurrent"
, "GetAverageCpuActivity", "GetAverageGfxActivity", "GetAveragePower"
, "GetAverageTemperature", "SetAveragePowerTimeConstant", "SetAverageActivityTimeConstant"
, "SetAverageTemperatureTimeConstant", "SetMitigationEndHysteresis"
, "GetCurrentFreq", "SetReducedPptLimit", "SetReducedThermalLimit"
, "DramLogSetDramAddr", "StartDramLogging", "StopDramLogging"
, "SetSoftMinCclk", "SetSoftMaxCclk", "SetGpoFeaturePMask", "DisallowGpo"
, "Enable2ndUSB20Port", "RequestActiveWgp", "SetFastPPTLimit"
, "SetSlowPPTLimit", "GetFastPPTLimit", "GetSlowPPTLimit", "EnableDeterminism"
, "DisableDeterminism", "SetUclkDpmMode", "LightSBR", "GfxDriverResetRecovery"
, "BoardPowerCalibration", "RequestGfxclk", "ForceGfxVid", "Spare0"
, "UnforceGfxVid", "HeavySBR", "SetBadHBMPagesRetiredFlagsPerChannel"
, "EnableGfxImu", "DriverMode2Reset", "GetGfxOffStatus", "GetGfxOffEntryCount"
, "LogGfxOffResidency", "SetNumBadMemoryPagesRetired", "SetBadMemoryPagesRetiredFlagsPerChannel"
, "AllowGpo",
46};
47
48#define smu_cmn_call_asic_func(intf, smu, args...)((smu)->ppt_funcs ? ((smu)->ppt_funcs->intf ? (smu)->
ppt_funcs->intf(smu, args...) : -91) : -22) \
49 ((smu)->ppt_funcs ? ((smu)->ppt_funcs->intf ? \
50 (smu)->ppt_funcs->intf(smu, ##args) : \
51 -ENOTSUPP91) : \
52 -EINVAL22)
53
54static const char *smu_get_message_name(struct smu_context *smu,
55 enum smu_message_type type)
56{
57 if (type < 0 || type >= SMU_MSG_MAX_COUNT)
58 return "unknown smu message";
59
60 return __smu_message_names[type];
61}
62
63static void smu_cmn_read_arg(struct smu_context *smu,
64 uint32_t *arg)
65{
66 struct amdgpu_device *adev = smu->adev;
67
68 *arg = RREG32(smu->param_reg)amdgpu_device_rreg(adev, (smu->param_reg), 0);
69}
70
71/* Redefine the SMU error codes here.
72 *
73 * Note that these definitions are redundant and should be removed
74 * when the SMU has exported a unified header file containing these
75 * macros, which header file we can just include and use the SMU's
76 * macros. At the moment, these error codes are defined by the SMU
77 * per-ASIC unfortunately, yet we're a one driver for all ASICs.
78 */
79#define SMU_RESP_NONE0 0
80#define SMU_RESP_OK1 1
81#define SMU_RESP_CMD_FAIL0xFF 0xFF
82#define SMU_RESP_CMD_UNKNOWN0xFE 0xFE
83#define SMU_RESP_CMD_BAD_PREREQ0xFD 0xFD
84#define SMU_RESP_BUSY_OTHER0xFC 0xFC
85#define SMU_RESP_DEBUG_END0xFB 0xFB
86
87/**
88 * __smu_cmn_poll_stat -- poll for a status from the SMU
89 * @smu: a pointer to SMU context
90 *
91 * Returns the status of the SMU, which could be,
92 * 0, the SMU is busy with your command;
93 * 1, execution status: success, execution result: success;
94 * 0xFF, execution status: success, execution result: failure;
95 * 0xFE, unknown command;
96 * 0xFD, valid command, but bad (command) prerequisites;
97 * 0xFC, the command was rejected as the SMU is busy;
98 * 0xFB, "SMC_Result_DebugDataDumpEnd".
99 *
100 * The values here are not defined by macros, because I'd rather we
101 * include a single header file which defines them, which is
102 * maintained by the SMU FW team, so that we're impervious to firmware
103 * changes. At the moment those values are defined in various header
104 * files, one for each ASIC, yet here we're a single ASIC-agnostic
105 * interface. Such a change can be followed-up by a subsequent patch.
106 */
107static u32 __smu_cmn_poll_stat(struct smu_context *smu)
108{
109 struct amdgpu_device *adev = smu->adev;
110 int timeout = adev->usec_timeout * 20;
111 u32 reg;
10
←
'reg' declared without an initial value
→
112
113 for ( ; timeout > 0; timeout--) {
11
←
Assuming 'timeout' is <= 0
→
12
←
Loop condition is false. Execution continues on line 121
→
114 reg = RREG32(smu->resp_reg)amdgpu_device_rreg(adev, (smu->resp_reg), 0);
115 if ((reg & MP1_C2PMSG_90__CONTENT_MASK0xFFFFFFFFL) != 0)
116 break;
117
118 udelay(1);
119 }
120
121 return reg;
13
←
Undefined or garbage value returned to caller
122}
123
124static void __smu_cmn_reg_print_error(struct smu_context *smu,
125 u32 reg_c2pmsg_90,
126 int msg_index,
127 u32 param,
128 enum smu_message_type msg)
129{
130 struct amdgpu_device *adev = smu->adev;
131 const char *message = smu_get_message_name(smu, msg);
132 u32 msg_idx, prm;
133
134 switch (reg_c2pmsg_90) {
135 case SMU_RESP_NONE0: {
136 msg_idx = RREG32(smu->msg_reg)amdgpu_device_rreg(adev, (smu->msg_reg), 0);
137 prm = RREG32(smu->param_reg)amdgpu_device_rreg(adev, (smu->param_reg), 0);
138 dev_err_ratelimited(adev->dev,printf("drm:pid%d:%s *ERROR* " "SMU: I'm not done with your previous command: SMN_C2PMSG_66:0x%08X SMN_C2PMSG_82:0x%08X"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_idx
, prm)
139 "SMU: I'm not done with your previous command: SMN_C2PMSG_66:0x%08X SMN_C2PMSG_82:0x%08X",printf("drm:pid%d:%s *ERROR* " "SMU: I'm not done with your previous command: SMN_C2PMSG_66:0x%08X SMN_C2PMSG_82:0x%08X"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_idx
, prm)
140 msg_idx, prm)printf("drm:pid%d:%s *ERROR* " "SMU: I'm not done with your previous command: SMN_C2PMSG_66:0x%08X SMN_C2PMSG_82:0x%08X"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_idx
, prm);
141 }
142 break;
143 case SMU_RESP_OK1:
144 /* The SMU executed the command. It completed with a
145 * successful result.
146 */
147 break;
148 case SMU_RESP_CMD_FAIL0xFF:
149 /* The SMU executed the command. It completed with an
150 * unsuccessful result.
151 */
152 break;
153 case SMU_RESP_CMD_UNKNOWN0xFE:
154 dev_err_ratelimited(adev->dev,printf("drm:pid%d:%s *ERROR* " "SMU: unknown command: index:%d param:0x%08X message:%s"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_index
, param, message)
155 "SMU: unknown command: index:%d param:0x%08X message:%s",printf("drm:pid%d:%s *ERROR* " "SMU: unknown command: index:%d param:0x%08X message:%s"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_index
, param, message)
156 msg_index, param, message)printf("drm:pid%d:%s *ERROR* " "SMU: unknown command: index:%d param:0x%08X message:%s"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_index
, param, message);
157 break;
158 case SMU_RESP_CMD_BAD_PREREQ0xFD:
159 dev_err_ratelimited(adev->dev,printf("drm:pid%d:%s *ERROR* " "SMU: valid command, bad prerequisites: index:%d param:0x%08X message:%s"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_index
, param, message)
160 "SMU: valid command, bad prerequisites: index:%d param:0x%08X message:%s",printf("drm:pid%d:%s *ERROR* " "SMU: valid command, bad prerequisites: index:%d param:0x%08X message:%s"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_index
, param, message)
161 msg_index, param, message)printf("drm:pid%d:%s *ERROR* " "SMU: valid command, bad prerequisites: index:%d param:0x%08X message:%s"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_index
, param, message);
162 break;
163 case SMU_RESP_BUSY_OTHER0xFC:
164 dev_err_ratelimited(adev->dev,printf("drm:pid%d:%s *ERROR* " "SMU: I'm very busy for your command: index:%d param:0x%08X message:%s"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_index
, param, message)
165 "SMU: I'm very busy for your command: index:%d param:0x%08X message:%s",printf("drm:pid%d:%s *ERROR* " "SMU: I'm very busy for your command: index:%d param:0x%08X message:%s"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_index
, param, message)
166 msg_index, param, message)printf("drm:pid%d:%s *ERROR* " "SMU: I'm very busy for your command: index:%d param:0x%08X message:%s"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , msg_index
, param, message);
167 break;
168 case SMU_RESP_DEBUG_END0xFB:
169 dev_err_ratelimited(adev->dev,printf("drm:pid%d:%s *ERROR* " "SMU: I'm debugging!", ({struct
cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci
) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;
})->ci_curproc->p_p->ps_pid, __func__)
170 "SMU: I'm debugging!")printf("drm:pid%d:%s *ERROR* " "SMU: I'm debugging!", ({struct
cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci
) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;
})->ci_curproc->p_p->ps_pid, __func__);
171 break;
172 default:
173 dev_err_ratelimited(adev->dev,printf("drm:pid%d:%s *ERROR* " "SMU: response:0x%08X for index:%d param:0x%08X message:%s?"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , reg_c2pmsg_90
, msg_index, param, message)
174 "SMU: response:0x%08X for index:%d param:0x%08X message:%s?",printf("drm:pid%d:%s *ERROR* " "SMU: response:0x%08X for index:%d param:0x%08X message:%s?"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , reg_c2pmsg_90
, msg_index, param, message)
175 reg_c2pmsg_90, msg_index, param, message)printf("drm:pid%d:%s *ERROR* " "SMU: response:0x%08X for index:%d param:0x%08X message:%s?"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , reg_c2pmsg_90
, msg_index, param, message);
176 break;
177 }
178}
179
180static int __smu_cmn_reg2errno(struct smu_context *smu, u32 reg_c2pmsg_90)
181{
182 int res;
183
184 switch (reg_c2pmsg_90) {
185 case SMU_RESP_NONE0:
186 /* The SMU is busy--still executing your command.
187 */
188 res = -ETIME60;
189 break;
190 case SMU_RESP_OK1:
191 res = 0;
192 break;
193 case SMU_RESP_CMD_FAIL0xFF:
194 /* Command completed successfully, but the command
195 * status was failure.
196 */
197 res = -EIO5;
198 break;
199 case SMU_RESP_CMD_UNKNOWN0xFE:
200 /* Unknown command--ignored by the SMU.
201 */
202 res = -EOPNOTSUPP45;
203 break;
204 case SMU_RESP_CMD_BAD_PREREQ0xFD:
205 /* Valid command--bad prerequisites.
206 */
207 res = -EINVAL22;
208 break;
209 case SMU_RESP_BUSY_OTHER0xFC:
210 /* The SMU is busy with other commands. The client
211 * should retry in 10 us.
212 */
213 res = -EBUSY16;
214 break;
215 default:
216 /* Unknown or debug response from the SMU.
217 */
218 res = -EREMOTEIO5;
219 break;
220 }
221
222 return res;
223}
224
225static void __smu_cmn_send_msg(struct smu_context *smu,
226 u16 msg,
227 u32 param)
228{
229 struct amdgpu_device *adev = smu->adev;
230
231 WREG32(smu->resp_reg, 0)amdgpu_device_wreg(adev, (smu->resp_reg), (0), 0);
232 WREG32(smu->param_reg, param)amdgpu_device_wreg(adev, (smu->param_reg), (param), 0);
233 WREG32(smu->msg_reg, msg)amdgpu_device_wreg(adev, (smu->msg_reg), (msg), 0);
234}
235
236static int __smu_cmn_send_debug_msg(struct smu_context *smu,
237 u32 msg,
238 u32 param)
239{
240 struct amdgpu_device *adev = smu->adev;
241
242 WREG32(smu->debug_param_reg, param)amdgpu_device_wreg(adev, (smu->debug_param_reg), (param), 0
);
243 WREG32(smu->debug_msg_reg, msg)amdgpu_device_wreg(adev, (smu->debug_msg_reg), (msg), 0);
244 WREG32(smu->debug_resp_reg, 0)amdgpu_device_wreg(adev, (smu->debug_resp_reg), (0), 0);
245
246 return 0;
247}
248/**
249 * smu_cmn_send_msg_without_waiting -- send the message; don't wait for status
250 * @smu: pointer to an SMU context
251 * @msg_index: message index
252 * @param: message parameter to send to the SMU
253 *
254 * Send a message to the SMU with the parameter passed. Do not wait
255 * for status/result of the message, thus the "without_waiting".
256 *
257 * Return 0 on success, -errno on error if we weren't able to _send_
258 * the message for some reason. See __smu_cmn_reg2errno() for details
259 * of the -errno.
260 */
261int smu_cmn_send_msg_without_waiting(struct smu_context *smu,
262 uint16_t msg_index,
263 uint32_t param)
264{
265 struct amdgpu_device *adev = smu->adev;
266 u32 reg;
267 int res;
268
269 if (adev->no_hw_access)
270 return 0;
271
272 reg = __smu_cmn_poll_stat(smu);
273 res = __smu_cmn_reg2errno(smu, reg);
274 if (reg == SMU_RESP_NONE0 ||
275 res == -EREMOTEIO5)
276 goto Out;
277 __smu_cmn_send_msg(smu, msg_index, param);
278 res = 0;
279Out:
280 if (unlikely(adev->pm.smu_debug_mask & SMU_DEBUG_HALT_ON_ERROR)__builtin_expect(!!(adev->pm.smu_debug_mask & 0x1), 0) &&
281 res && (res != -ETIME60)) {
282 amdgpu_device_halt(adev);
283 WARN_ON(1)({ int __ret = !!(1); if (__ret) printf("WARNING %s failed at %s:%d\n"
, "1", "/usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu_cmn.c", 283
); __builtin_expect(!!(__ret), 0); });
284 }
285
286 return res;
287}
288
289/**
290 * smu_cmn_wait_for_response -- wait for response from the SMU
291 * @smu: pointer to an SMU context
292 *
293 * Wait for status from the SMU.
294 *
295 * Return 0 on success, -errno on error, indicating the execution
296 * status and result of the message being waited for. See
297 * __smu_cmn_reg2errno() for details of the -errno.
298 */
299int smu_cmn_wait_for_response(struct smu_context *smu)
300{
301 u32 reg;
302 int res;
303
304 reg = __smu_cmn_poll_stat(smu);
305 res = __smu_cmn_reg2errno(smu, reg);
306
307 if (unlikely(smu->adev->pm.smu_debug_mask & SMU_DEBUG_HALT_ON_ERROR)__builtin_expect(!!(smu->adev->pm.smu_debug_mask & 0x1
), 0) &&
308 res && (res != -ETIME60)) {
309 amdgpu_device_halt(smu->adev);
310 WARN_ON(1)({ int __ret = !!(1); if (__ret) printf("WARNING %s failed at %s:%d\n"
, "1", "/usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu_cmn.c", 310
); __builtin_expect(!!(__ret), 0); });
311 }
312
313 return res;
314}
315
316/**
317 * smu_cmn_send_smc_msg_with_param -- send a message with parameter
318 * @smu: pointer to an SMU context
319 * @msg: message to send
320 * @param: parameter to send to the SMU
321 * @read_arg: pointer to u32 to return a value from the SMU back
322 * to the caller
323 *
324 * Send the message @msg with parameter @param to the SMU, wait for
325 * completion of the command, and return back a value from the SMU in
326 * @read_arg pointer.
327 *
328 * Return 0 on success, -errno when a problem is encountered sending
329 * message or receiving reply. If there is a PCI bus recovery or
330 * the destination is a virtual GPU which does not allow this message
331 * type, the message is simply dropped and success is also returned.
332 * See __smu_cmn_reg2errno() for details of the -errno.
333 *
334 * If we weren't able to send the message to the SMU, we also print
335 * the error to the standard log.
336 *
337 * Command completion status is printed only if the -errno is
338 * -EREMOTEIO, indicating that the SMU returned back an
339 * undefined/unknown/unspecified result. All other cases are
340 * well-defined, not printed, but instead given back to the client to
341 * decide what further to do.
342 *
343 * The return value, @read_arg is read back regardless, to give back
344 * more information to the client, which on error would most likely be
345 * @param, but we can't assume that. This also eliminates more
346 * conditionals.
347 */
348int smu_cmn_send_smc_msg_with_param(struct smu_context *smu,
349 enum smu_message_type msg,
350 uint32_t param,
351 uint32_t *read_arg)
352{
353 struct amdgpu_device *adev = smu->adev;
354 int res, index;
355 u32 reg;
356
357 if (adev->no_hw_access)
5
←
Assuming field 'no_hw_access' is false
→
6
←
Taking false branch
→
358 return 0;
359
360 index = smu_cmn_to_asic_specific_index(smu,
361 CMN2ASIC_MAPPING_MSG,
362 msg);
363 if (index < 0)
7
←
Assuming 'index' is >= 0
→
8
←
Taking false branch
→
364 return index == -EACCES13 ? 0 : index;
365
366 mutex_lock(&smu->message_lock)rw_enter_write(&smu->message_lock);
367 reg = __smu_cmn_poll_stat(smu);
9
←
Calling '__smu_cmn_poll_stat'
→
368 res = __smu_cmn_reg2errno(smu, reg);
369 if (reg == SMU_RESP_NONE0 ||
370 res == -EREMOTEIO5) {
371 __smu_cmn_reg_print_error(smu, reg, index, param, msg);
372 goto Out;
373 }
374 __smu_cmn_send_msg(smu, (uint16_t) index, param);
375 reg = __smu_cmn_poll_stat(smu);
376 res = __smu_cmn_reg2errno(smu, reg);
377 if (res != 0)
378 __smu_cmn_reg_print_error(smu, reg, index, param, msg);
379 if (read_arg)
380 smu_cmn_read_arg(smu, read_arg);
381Out:
382 if (unlikely(adev->pm.smu_debug_mask & SMU_DEBUG_HALT_ON_ERROR)__builtin_expect(!!(adev->pm.smu_debug_mask & 0x1), 0) && res) {
383 amdgpu_device_halt(adev);
384 WARN_ON(1)({ int __ret = !!(1); if (__ret) printf("WARNING %s failed at %s:%d\n"
, "1", "/usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu_cmn.c", 384
); __builtin_expect(!!(__ret), 0); });
385 }
386
387 mutex_unlock(&smu->message_lock)rw_exit_write(&smu->message_lock);
388 return res;
389}
390
391int smu_cmn_send_smc_msg(struct smu_context *smu,
392 enum smu_message_type msg,
393 uint32_t *read_arg)
394{
395 return smu_cmn_send_smc_msg_with_param(smu,
4
←
Calling 'smu_cmn_send_smc_msg_with_param'
→
396 msg,
397 0,
398 read_arg);
399}
400
401int smu_cmn_send_debug_smc_msg(struct smu_context *smu,
402 uint32_t msg)
403{
404 return __smu_cmn_send_debug_msg(smu, msg, 0);
405}
406
407int smu_cmn_to_asic_specific_index(struct smu_context *smu,
408 enum smu_cmn2asic_mapping_type type,
409 uint32_t index)
410{
411 struct cmn2asic_msg_mapping msg_mapping;
412 struct cmn2asic_mapping mapping;
413
414 switch (type) {
415 case CMN2ASIC_MAPPING_MSG:
416 if (index >= SMU_MSG_MAX_COUNT ||
417 !smu->message_map)
418 return -EINVAL22;
419
420 msg_mapping = smu->message_map[index];
421 if (!msg_mapping.valid_mapping)
422 return -EINVAL22;
423
424 if (amdgpu_sriov_vf(smu->adev)((smu->adev)->virt.caps & (1 << 2)) &&
425 !msg_mapping.valid_in_vf)
426 return -EACCES13;
427
428 return msg_mapping.map_to;
429
430 case CMN2ASIC_MAPPING_CLK:
431 if (index >= SMU_CLK_COUNT ||
432 !smu->clock_map)
433 return -EINVAL22;
434
435 mapping = smu->clock_map[index];
436 if (!mapping.valid_mapping)
437 return -EINVAL22;
438
439 return mapping.map_to;
440
441 case CMN2ASIC_MAPPING_FEATURE:
442 if (index >= SMU_FEATURE_COUNT ||
443 !smu->feature_map)
444 return -EINVAL22;
445
446 mapping = smu->feature_map[index];
447 if (!mapping.valid_mapping)
448 return -EINVAL22;
449
450 return mapping.map_to;
451
452 case CMN2ASIC_MAPPING_TABLE:
453 if (index >= SMU_TABLE_COUNT ||
454 !smu->table_map)
455 return -EINVAL22;
456
457 mapping = smu->table_map[index];
458 if (!mapping.valid_mapping)
459 return -EINVAL22;
460
461 return mapping.map_to;
462
463 case CMN2ASIC_MAPPING_PWR:
464 if (index >= SMU_POWER_SOURCE_COUNT ||
465 !smu->pwr_src_map)
466 return -EINVAL22;
467
468 mapping = smu->pwr_src_map[index];
469 if (!mapping.valid_mapping)
470 return -EINVAL22;
471
472 return mapping.map_to;
473
474 case CMN2ASIC_MAPPING_WORKLOAD:
475 if (index > PP_SMC_POWER_PROFILE_WINDOW3D ||
476 !smu->workload_map)
477 return -EINVAL22;
478
479 mapping = smu->workload_map[index];
480 if (!mapping.valid_mapping)
481 return -EINVAL22;
482
483 return mapping.map_to;
484
485 default:
486 return -EINVAL22;
487 }
488}
489
490int smu_cmn_feature_is_supported(struct smu_context *smu,
491 enum smu_feature_mask mask)
492{
493 struct smu_feature *feature = &smu->smu_feature;
494 int feature_id;
495
496 feature_id = smu_cmn_to_asic_specific_index(smu,
497 CMN2ASIC_MAPPING_FEATURE,
498 mask);
499 if (feature_id < 0)
500 return 0;
501
502 WARN_ON(feature_id > feature->feature_num)({ int __ret = !!(feature_id > feature->feature_num); if
(__ret) printf("WARNING %s failed at %s:%d\n", "feature_id > feature->feature_num"
, "/usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu_cmn.c", 502); __builtin_expect
(!!(__ret), 0); });
503
504 return test_bit(feature_id, feature->supported);
505}
506
507static int __smu_get_enabled_features(struct smu_context *smu,
508 uint64_t *enabled_features)
509{
510 return smu_cmn_call_asic_func(get_enabled_mask, smu, enabled_features)((smu)->ppt_funcs ? ((smu)->ppt_funcs->get_enabled_mask
? (smu)->ppt_funcs->get_enabled_mask(smu, enabled_features
) : -91) : -22);
511}
512
513int smu_cmn_feature_is_enabled(struct smu_context *smu,
514 enum smu_feature_mask mask)
515{
516 struct amdgpu_device *adev = smu->adev;
517 uint64_t enabled_features;
518 int feature_id;
519
520 if (__smu_get_enabled_features(smu, &enabled_features)) {
521 dev_err(adev->dev, "Failed to retrieve enabled ppfeatures!\n")printf("drm:pid%d:%s *ERROR* " "Failed to retrieve enabled ppfeatures!\n"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__);
522 return 0;
523 }
524
525 /*
526 * For Renoir and Cyan Skillfish, they are assumed to have all features
527 * enabled. Also considering they have no feature_map available, the
528 * check here can avoid unwanted feature_map check below.
529 */
530 if (enabled_features == ULLONG_MAX0xffffffffffffffffULL)
531 return 1;
532
533 feature_id = smu_cmn_to_asic_specific_index(smu,
534 CMN2ASIC_MAPPING_FEATURE,
535 mask);
536 if (feature_id < 0)
537 return 0;
538
539 return test_bit(feature_id, (unsigned long *)&enabled_features);
540}
541
542bool_Bool smu_cmn_clk_dpm_is_enabled(struct smu_context *smu,
543 enum smu_clk_type clk_type)
544{
545 enum smu_feature_mask feature_id = 0;
546
547 switch (clk_type) {
548 case SMU_MCLK:
549 case SMU_UCLK:
550 feature_id = SMU_FEATURE_DPM_UCLK_BIT;
551 break;
552 case SMU_GFXCLK:
553 case SMU_SCLK:
554 feature_id = SMU_FEATURE_DPM_GFXCLK_BIT;
555 break;
556 case SMU_SOCCLK:
557 feature_id = SMU_FEATURE_DPM_SOCCLK_BIT;
558 break;
559 case SMU_VCLK:
560 case SMU_VCLK1:
561 feature_id = SMU_FEATURE_DPM_VCLK_BIT;
562 break;
563 case SMU_DCLK:
564 case SMU_DCLK1:
565 feature_id = SMU_FEATURE_DPM_DCLK_BIT;
566 break;
567 case SMU_FCLK:
568 feature_id = SMU_FEATURE_DPM_FCLK_BIT;
569 break;
570 default:
571 return true1;
572 }
573
574 if (!smu_cmn_feature_is_enabled(smu, feature_id))
575 return false0;
576
577 return true1;
578}
579
580int smu_cmn_get_enabled_mask(struct smu_context *smu,
581 uint64_t *feature_mask)
582{
583 uint32_t *feature_mask_high;
584 uint32_t *feature_mask_low;
585 int ret = 0, index = 0;
586
587 if (!feature_mask)
588 return -EINVAL22;
589
590 feature_mask_low = &((uint32_t *)feature_mask)[0];
591 feature_mask_high = &((uint32_t *)feature_mask)[1];
592
593 index = smu_cmn_to_asic_specific_index(smu,
594 CMN2ASIC_MAPPING_MSG,
595 SMU_MSG_GetEnabledSmuFeatures);
596 if (index > 0) {
597 ret = smu_cmn_send_smc_msg_with_param(smu,
598 SMU_MSG_GetEnabledSmuFeatures,
599 0,
600 feature_mask_low);
601 if (ret)
602 return ret;
603
604 ret = smu_cmn_send_smc_msg_with_param(smu,
605 SMU_MSG_GetEnabledSmuFeatures,
606 1,
607 feature_mask_high);
608 } else {
609 ret = smu_cmn_send_smc_msg(smu,
610 SMU_MSG_GetEnabledSmuFeaturesHigh,
611 feature_mask_high);
612 if (ret)
613 return ret;
614
615 ret = smu_cmn_send_smc_msg(smu,
616 SMU_MSG_GetEnabledSmuFeaturesLow,
617 feature_mask_low);
618 }
619
620 return ret;
621}
622
623uint64_t smu_cmn_get_indep_throttler_status(
624 const unsigned long dep_status,
625 const uint8_t *throttler_map)
626{
627 uint64_t indep_status = 0;
628 uint8_t dep_bit = 0;
629
630 for_each_set_bit(dep_bit, (unsigned long *)&dep_status, 32)for ((dep_bit) = find_first_bit(((unsigned long *)&dep_status
), (32)); (dep_bit) < (32); (dep_bit) = find_next_bit(((unsigned
long *)&dep_status), (32), (dep_bit) + 1))
631 indep_status |= 1ULL << throttler_map[dep_bit];
632
633 return indep_status;
634}
635
636int smu_cmn_feature_update_enable_state(struct smu_context *smu,
637 uint64_t feature_mask,
638 bool_Bool enabled)
639{
640 int ret = 0;
641
642 if (enabled) {
643 ret = smu_cmn_send_smc_msg_with_param(smu,
644 SMU_MSG_EnableSmuFeaturesLow,
645 lower_32_bits(feature_mask)((u32)(feature_mask)),
646 NULL((void *)0));
647 if (ret)
648 return ret;
649 ret = smu_cmn_send_smc_msg_with_param(smu,
650 SMU_MSG_EnableSmuFeaturesHigh,
651 upper_32_bits(feature_mask)((u32)(((feature_mask) >> 16) >> 16)),
652 NULL((void *)0));
653 } else {
654 ret = smu_cmn_send_smc_msg_with_param(smu,
655 SMU_MSG_DisableSmuFeaturesLow,
656 lower_32_bits(feature_mask)((u32)(feature_mask)),
657 NULL((void *)0));
658 if (ret)
659 return ret;
660 ret = smu_cmn_send_smc_msg_with_param(smu,
661 SMU_MSG_DisableSmuFeaturesHigh,
662 upper_32_bits(feature_mask)((u32)(((feature_mask) >> 16) >> 16)),
663 NULL((void *)0));
664 }
665
666 return ret;
667}
668
669int smu_cmn_feature_set_enabled(struct smu_context *smu,
670 enum smu_feature_mask mask,
671 bool_Bool enable)
672{
673 int feature_id;
674
675 feature_id = smu_cmn_to_asic_specific_index(smu,
676 CMN2ASIC_MAPPING_FEATURE,
677 mask);
678 if (feature_id < 0)
679 return -EINVAL22;
680
681 return smu_cmn_feature_update_enable_state(smu,
682 1ULL << feature_id,
683 enable);
684}
685
686#undef __SMU_DUMMY_MAP
687#define __SMU_DUMMY_MAP(fea)"fea" #fea
688static const char* __smu_feature_names[] = {
689 SMU_FEATURE_MASKS"DPM_PREFETCHER", "DPM_GFXCLK", "DPM_UCLK", "DPM_SOCCLK", "DPM_UVD"
, "DPM_VCE", "DPM_LCLK", "ULV", "DPM_MP0CLK", "DPM_LINK", "DPM_DCEFCLK"
, "DPM_XGMI", "DS_GFXCLK", "DS_SOCCLK", "DS_LCLK", "PPT", "TDC"
, "THERMAL", "GFX_PER_CU_CG", "DATA_CALCULATIONS", "RM", "DS_DCEFCLK"
, "ACDC", "VR0HOT", "VR1HOT", "FW_CTF", "LED_DISPLAY", "FAN_CONTROL"
, "GFX_EDC", "GFXOFF", "CG", "DPM_FCLK", "DS_FCLK", "DS_MP1CLK"
, "DS_MP0CLK", "XGMI_PER_LINK_PWR_DWN", "DPM_GFX_PACE", "MEM_VDDCI_SCALING"
, "MEM_MVDD_SCALING", "DS_UCLK", "GFX_ULV", "FW_DSTATE", "BACO"
, "VCN_PG", "MM_DPM_PG", "JPEG_PG", "USB_PG", "RSMU_SMN_CG", "APCC_PLUS"
, "GTHR", "GFX_DCS", "GFX_SS", "OUT_OF_BAND_MONITOR", "TEMP_DEPENDENT_VMIN"
, "MMHUB_PG", "ATHUB_PG", "APCC_DFLL", "DF_CSTATE", "DPM_GFX_GPO"
, "WAFL_CG", "CCLK_DPM", "FAN_CONTROLLER", "VCN_DPM", "LCLK_DPM"
, "SHUBCLK_DPM", "DCFCLK_DPM", "DS_DCFCLK", "S0I2", "SMU_LOW_POWER"
, "GFX_DEM", "PSI", "PROCHOT", "CPUOFF", "STAPM", "S0I3", "DF_CSTATES"
, "PERF_LIMIT", "CORE_DLDO", "RSMU_LOW_POWER", "SMN_LOW_POWER"
, "THM_LOW_POWER", "SMUIO_LOW_POWER", "MP1_LOW_POWER", "DS_VCN"
, "CPPC", "OS_CSTATES", "ISP_DPM", "A55_DPM", "CVIP_DSP_DPM",
"MSMU_LOW_POWER", "FUSE_CG", "MP1_CG", "SMUIO_CG", "THM_CG",
"CLK_CG", "DATA_CALCULATION", "DPM_VCLK", "DPM_DCLK", "FW_DATA_READ"
, "DPM_GFX_POWER_OPTIMIZER", "DPM_DCN", "VMEMP_SCALING", "VDDIO_MEM_SCALING"
, "MM_DPM", "SOC_MPCLK_DS", "BACO_MPCLK_DS", "THROTTLERS", "SMARTSHIFT"
, "GFX_READ_MARGIN", "GFX_IMU", "GFX_PCC_DFLL", "BOOT_TIME_CAL"
, "BOOT_POWER_OPT", "GFXCLK_SPREAD_SPECTRUM", "SOC_PCC", "OPTIMIZED_VMIN"
, "CLOCK_POWER_DOWN_BYPASS", "MEM_TEMP_READ", "ATHUB_MMHUB_PG"
, "BACO_CG", "SOC_CG",
690};
691
692static const char *smu_get_feature_name(struct smu_context *smu,
693 enum smu_feature_mask feature)
694{
695 if (feature < 0 || feature >= SMU_FEATURE_COUNT)
696 return "unknown smu feature";
697 return __smu_feature_names[feature];
698}
699
700size_t smu_cmn_get_pp_feature_mask(struct smu_context *smu,
701 char *buf)
702{
703 int8_t sort_feature[max(SMU_FEATURE_COUNT, SMU_FEATURE_MAX)(((SMU_FEATURE_COUNT)>((64)))?(SMU_FEATURE_COUNT):((64)))];
704 uint64_t feature_mask;
705 int i, feature_index;
706 uint32_t count = 0;
707 size_t size = 0;
708
709 if (__smu_get_enabled_features(smu, &feature_mask))
710 return 0;
711
712 size = sysfs_emit_at(buf, size, "features high: 0x%08x low: 0x%08x\n",
713 upper_32_bits(feature_mask)((u32)(((feature_mask) >> 16) >> 16)), lower_32_bits(feature_mask)((u32)(feature_mask)));
714
715 memset(sort_feature, -1, sizeof(sort_feature))__builtin_memset((sort_feature), (-1), (sizeof(sort_feature))
);
716
717 for (i = 0; i < SMU_FEATURE_COUNT; i++) {
718 feature_index = smu_cmn_to_asic_specific_index(smu,
719 CMN2ASIC_MAPPING_FEATURE,
720 i);
721 if (feature_index < 0)
722 continue;
723
724 sort_feature[feature_index] = i;
725 }
726
727 size += sysfs_emit_at(buf, size, "%-2s. %-20s %-3s : %-s\n",
728 "No", "Feature", "Bit", "State");
729
730 for (feature_index = 0; feature_index < SMU_FEATURE_MAX(64); feature_index++) {
731 if (sort_feature[feature_index] < 0)
732 continue;
733
734 size += sysfs_emit_at(buf, size, "%02d. %-20s (%2d) : %s\n",
735 count++,
736 smu_get_feature_name(smu, sort_feature[feature_index]),
737 feature_index,
738 !!test_bit(feature_index, (unsigned long *)&feature_mask) ?
739 "enabled" : "disabled");
740 }
741
742 return size;
743}
744
745int smu_cmn_set_pp_feature_mask(struct smu_context *smu,
746 uint64_t new_mask)
747{
748 int ret = 0;
749 uint64_t feature_mask;
750 uint64_t feature_2_enabled = 0;
751 uint64_t feature_2_disabled = 0;
752
753 ret = __smu_get_enabled_features(smu, &feature_mask);
754 if (ret)
755 return ret;
756
757 feature_2_enabled = ~feature_mask & new_mask;
758 feature_2_disabled = feature_mask & ~new_mask;
759
760 if (feature_2_enabled) {
761 ret = smu_cmn_feature_update_enable_state(smu,
762 feature_2_enabled,
763 true1);
764 if (ret)
765 return ret;
766 }
767 if (feature_2_disabled) {
768 ret = smu_cmn_feature_update_enable_state(smu,
769 feature_2_disabled,
770 false0);
771 if (ret)
772 return ret;
773 }
774
775 return ret;
776}
777
778/**
779 * smu_cmn_disable_all_features_with_exception - disable all dpm features
780 * except this specified by
781 * @mask
782 *
783 * @smu: smu_context pointer
784 * @mask: the dpm feature which should not be disabled
785 * SMU_FEATURE_COUNT: no exception, all dpm features
786 * to disable
787 *
788 * Returns:
789 * 0 on success or a negative error code on failure.
790 */
791int smu_cmn_disable_all_features_with_exception(struct smu_context *smu,
792 enum smu_feature_mask mask)
793{
794 uint64_t features_to_disable = U64_MAX0xffffffffffffffffULL;
795 int skipped_feature_id;
796
797 if (mask != SMU_FEATURE_COUNT) {
798 skipped_feature_id = smu_cmn_to_asic_specific_index(smu,
799 CMN2ASIC_MAPPING_FEATURE,
800 mask);
801 if (skipped_feature_id < 0)
802 return -EINVAL22;
803
804 features_to_disable &= ~(1ULL << skipped_feature_id);
805 }
806
807 return smu_cmn_feature_update_enable_state(smu,
808 features_to_disable,
809 0);
810}
811
812int smu_cmn_get_smc_version(struct smu_context *smu,
813 uint32_t *if_version,
814 uint32_t *smu_version)
815{
816 int ret = 0;
817
818 if (!if_version && !smu_version)
819 return -EINVAL22;
820
821 if (smu->smc_fw_if_version && smu->smc_fw_version)
822 {
823 if (if_version)
824 *if_version = smu->smc_fw_if_version;
825
826 if (smu_version)
827 *smu_version = smu->smc_fw_version;
828
829 return 0;
830 }
831
832 if (if_version) {
833 ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetDriverIfVersion, if_version);
834 if (ret)
835 return ret;
836
837 smu->smc_fw_if_version = *if_version;
838 }
839
840 if (smu_version) {
841 ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetSmuVersion, smu_version);
842 if (ret)
843 return ret;
844
845 smu->smc_fw_version = *smu_version;
846 }
847
848 return ret;
849}
850
851int smu_cmn_update_table(struct smu_context *smu,
852 enum smu_table_id table_index,
853 int argument,
854 void *table_data,
855 bool_Bool drv2smu)
856{
857 struct smu_table_context *smu_table = &smu->smu_table;
858 struct amdgpu_device *adev = smu->adev;
859 struct smu_table *table = &smu_table->driver_table;
860 int table_id = smu_cmn_to_asic_specific_index(smu,
861 CMN2ASIC_MAPPING_TABLE,
862 table_index);
863 uint32_t table_size;
864 int ret = 0;
865 if (!table_data || table_id >= SMU_TABLE_COUNT || table_id < 0)
866 return -EINVAL22;
867
868 table_size = smu_table->tables[table_index].size;
869
870 if (drv2smu) {
871 memcpy(table->cpu_addr, table_data, table_size)__builtin_memcpy((table->cpu_addr), (table_data), (table_size
));
872 /*
873 * Flush hdp cache: to guard the content seen by
874 * GPU is consitent with CPU.
875 */
876 amdgpu_asic_flush_hdp(adev, NULL)((adev)->asic_funcs->flush_hdp ? (adev)->asic_funcs->
flush_hdp((adev), (((void *)0))) : (adev)->hdp.funcs->flush_hdp
((adev), (((void *)0))));
877 }
878
879 ret = smu_cmn_send_smc_msg_with_param(smu, drv2smu ?
880 SMU_MSG_TransferTableDram2Smu :
881 SMU_MSG_TransferTableSmu2Dram,
882 table_id | ((argument & 0xFFFF) << 16),
883 NULL((void *)0));
884 if (ret)
885 return ret;
886
887 if (!drv2smu) {
888 amdgpu_asic_invalidate_hdp(adev, NULL)((adev)->asic_funcs->invalidate_hdp ? (adev)->asic_funcs
->invalidate_hdp((adev), (((void *)0))) : ((adev)->hdp.
funcs->invalidate_hdp ? (adev)->hdp.funcs->invalidate_hdp
((adev), (((void *)0))) : 0));
889 memcpy(table_data, table->cpu_addr, table_size)__builtin_memcpy((table_data), (table->cpu_addr), (table_size
));
890 }
891
892 return 0;
893}
894
895int smu_cmn_write_watermarks_table(struct smu_context *smu)
896{
897 void *watermarks_table = smu->smu_table.watermarks_table;
898
899 if (!watermarks_table)
900 return -EINVAL22;
901
902 return smu_cmn_update_table(smu,
903 SMU_TABLE_WATERMARKS,
904 0,
905 watermarks_table,
906 true1);
907}
908
909int smu_cmn_write_pptable(struct smu_context *smu)
910{
911 void *pptable = smu->smu_table.driver_pptable;
912
913 return smu_cmn_update_table(smu,
914 SMU_TABLE_PPTABLE,
915 0,
916 pptable,
917 true1);
918}
919
920int smu_cmn_get_metrics_table(struct smu_context *smu,
921 void *metrics_table,
922 bool_Bool bypass_cache)
923{
924 struct smu_table_context *smu_table= &smu->smu_table;
925 uint32_t table_size =
926 smu_table->tables[SMU_TABLE_SMU_METRICS].size;
927 int ret = 0;
928
929 if (bypass_cache ||
930 !smu_table->metrics_time ||
931 time_after(jiffies, smu_table->metrics_time + msecs_to_jiffies(1)(((uint64_t)(1)) * hz / 1000))) {
932 ret = smu_cmn_update_table(smu,
933 SMU_TABLE_SMU_METRICS,
934 0,
935 smu_table->metrics_table,
936 false0);
937 if (ret) {
938 dev_info(smu->adev->dev, "Failed to export SMU metrics table!\n")do { } while(0);
939 return ret;
940 }
941 smu_table->metrics_time = jiffies;
942 }
943
944 if (metrics_table)
945 memcpy(metrics_table, smu_table->metrics_table, table_size)__builtin_memcpy((metrics_table), (smu_table->metrics_table
), (table_size));
946
947 return 0;
948}
949
950int smu_cmn_get_combo_pptable(struct smu_context *smu)
951{
952 void *pptable = smu->smu_table.combo_pptable;
953
954 return smu_cmn_update_table(smu,
955 SMU_TABLE_COMBO_PPTABLE,
956 0,
957 pptable,
958 false0);
959}
960
961void smu_cmn_init_soft_gpu_metrics(void *table, uint8_t frev, uint8_t crev)
962{
963 struct metrics_table_header *header = (struct metrics_table_header *)table;
964 uint16_t structure_size;
965
966#define METRICS_VERSION(a, b) ((a << 16) | b )
967
968 switch (METRICS_VERSION(frev, crev)) {
969 case METRICS_VERSION(1, 0):
970 structure_size = sizeof(struct gpu_metrics_v1_0);
971 break;
972 case METRICS_VERSION(1, 1):
973 structure_size = sizeof(struct gpu_metrics_v1_1);
974 break;
975 case METRICS_VERSION(1, 2):
976 structure_size = sizeof(struct gpu_metrics_v1_2);
977 break;
978 case METRICS_VERSION(1, 3):
979 structure_size = sizeof(struct gpu_metrics_v1_3);
980 break;
981 case METRICS_VERSION(2, 0):
982 structure_size = sizeof(struct gpu_metrics_v2_0);
983 break;
984 case METRICS_VERSION(2, 1):
985 structure_size = sizeof(struct gpu_metrics_v2_1);
986 break;
987 case METRICS_VERSION(2, 2):
988 structure_size = sizeof(struct gpu_metrics_v2_2);
989 break;
990 case METRICS_VERSION(2, 3):
991 structure_size = sizeof(struct gpu_metrics_v2_3);
992 break;
993 default:
994 return;
995 }
996
997#undef METRICS_VERSION
998
999 memset(header, 0xFF, structure_size)__builtin_memset((header), (0xFF), (structure_size));
1000
1001 header->format_revision = frev;
1002 header->content_revision = crev;
1003 header->structure_size = structure_size;
1004
1005}
1006
1007int smu_cmn_set_mp1_state(struct smu_context *smu,
1008 enum pp_mp1_state mp1_state)
1009{
1010 enum smu_message_type msg;
1011 int ret;
1012
1013 switch (mp1_state) {
1
Control jumps to 'case PP_MP1_STATE_RESET:' at line 1020
→
1014 case PP_MP1_STATE_SHUTDOWN:
1015 msg = SMU_MSG_PrepareMp1ForShutdown;
1016 break;
1017 case PP_MP1_STATE_UNLOAD:
1018 msg = SMU_MSG_PrepareMp1ForUnload;
1019 break;
1020 case PP_MP1_STATE_RESET:
1021 msg = SMU_MSG_PrepareMp1ForReset;
1022 break;
1023 case PP_MP1_STATE_NONE:
1024 default:
1025 return 0;
1026 }
1027
1028 ret = smu_cmn_send_smc_msg(smu, msg, NULL((void *)0));
2
←
 Execution continues on line 1028
→
3
←
Calling 'smu_cmn_send_smc_msg'
→
1029 if (ret)
1030 dev_err(smu->adev->dev, "[PrepareMp1] Failed!\n")printf("drm:pid%d:%s *ERROR* " "[PrepareMp1] Failed!\n", ({struct
cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci
) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;
})->ci_curproc->p_p->ps_pid, __func__);
1031
1032 return ret;
1033}
1034
1035bool_Bool smu_cmn_is_audio_func_enabled(struct amdgpu_device *adev)
1036{
1037 STUB()do { printf("%s: stub\n", __func__); } while(0);
1038 return false0;
1039#ifdef notyet
1040 struct pci_dev *p = NULL((void *)0);
1041 bool_Bool snd_driver_loaded;
1042
1043 /*
1044 * If the ASIC comes with no audio function, we always assume
1045 * it is "enabled".
1046 */
1047 p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
1048 adev->pdev->bus->number, 1);
1049 if (!p)
1050 return true1;
1051
1052 snd_driver_loaded = pci_is_enabled(p) ? true1 : false0;
1053
1054 pci_dev_put(p);
1055
1056 return snd_driver_loaded;
1057#endif
1058}