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Message-ID: <202411040601.DGJciccG-lkp@intel.com>
Date: Mon, 4 Nov 2024 06:38:18 +0800
From: kernel test robot <lkp@...el.com>
To: Rodrigo Siqueira <Rodrigo.Siqueira@....com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org,
Alex Deucher <alexander.deucher@....com>
Subject: drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/display_mode_core.c:6211:13:
warning: stack frame size (3288) exceeds limit (2048) in
'dml_prefetch_check'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a8cc7432728d019a10cb412401ebc15ed7504289
commit: b141fa036c901303ca5659cc22e9c08f8b097892 drm/amd/display: Reduce stack size by splitting function
date: 1 year ago
config: x86_64-buildonly-randconfig-002-20241104 (https://download.01.org/0day-ci/archive/20241104/202411040601.DGJciccG-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241104/202411040601.DGJciccG-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411040601.DGJciccG-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/display_mode_core.c:25:
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/display_mode_core.h:29:
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/display_mode_core_structs.h:28:
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/display_mode_lib_defines.h:43:
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/dml_depedencies.h:30:
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:31:
In file included from include/linux/kgdb.h:19:
In file included from include/linux/kprobes.h:28:
In file included from include/linux/ftrace.h:13:
In file included from include/linux/kallsyms.h:13:
In file included from include/linux/mm.h:2168:
include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/display_mode_core.c:6699:12: warning: stack frame size (2904) exceeds limit (2048) in 'dml_core_mode_support' [-Wframe-larger-than]
6699 | dml_bool_t dml_core_mode_support(struct display_mode_lib_st *mode_lib)
| ^
>> drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/display_mode_core.c:6211:13: warning: stack frame size (3288) exceeds limit (2048) in 'dml_prefetch_check' [-Wframe-larger-than]
6211 | static void dml_prefetch_check(struct display_mode_lib_st *mode_lib)
| ^
drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/display_mode_core.c:8268:6: warning: stack frame size (2616) exceeds limit (2048) in 'dml_core_mode_programming' [-Wframe-larger-than]
8268 | void dml_core_mode_programming(struct display_mode_lib_st *mode_lib, const struct dml_clk_cfg_st *clk_cfg)
| ^
4 warnings generated.
vim +/dml_prefetch_check +6211 drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/display_mode_core.c
6210
> 6211 static void dml_prefetch_check(struct display_mode_lib_st *mode_lib)
6212 {
6213 struct dml_core_mode_support_locals_st *s = &mode_lib->scratch.dml_core_mode_support_locals;
6214 struct CalculatePrefetchSchedule_params_st *CalculatePrefetchSchedule_params = &mode_lib->scratch.CalculatePrefetchSchedule_params;
6215 struct CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport_params_st *CalculateWatermarks_params = &mode_lib->scratch.CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport_params;
6216 struct DmlPipe *myPipe;
6217 dml_uint_t j, k;
6218
6219 for (j = 0; j < 2; ++j) {
6220 mode_lib->ms.TimeCalc = 24 / mode_lib->ms.ProjectedDCFCLKDeepSleep[j];
6221
6222 for (k = 0; k < mode_lib->ms.num_active_planes; ++k) {
6223 mode_lib->ms.NoOfDPPThisState[k] = mode_lib->ms.NoOfDPP[j][k];
6224 mode_lib->ms.swath_width_luma_ub_this_state[k] = mode_lib->ms.swath_width_luma_ub_all_states[j][k];
6225 mode_lib->ms.swath_width_chroma_ub_this_state[k] = mode_lib->ms.swath_width_chroma_ub_all_states[j][k];
6226 mode_lib->ms.SwathWidthYThisState[k] = mode_lib->ms.SwathWidthYAllStates[j][k];
6227 mode_lib->ms.SwathWidthCThisState[k] = mode_lib->ms.SwathWidthCAllStates[j][k];
6228 mode_lib->ms.SwathHeightYThisState[k] = mode_lib->ms.SwathHeightYAllStates[j][k];
6229 mode_lib->ms.SwathHeightCThisState[k] = mode_lib->ms.SwathHeightCAllStates[j][k];
6230 mode_lib->ms.UnboundedRequestEnabledThisState = mode_lib->ms.UnboundedRequestEnabledAllStates[j];
6231 mode_lib->ms.CompressedBufferSizeInkByteThisState = mode_lib->ms.CompressedBufferSizeInkByteAllStates[j];
6232 mode_lib->ms.DETBufferSizeInKByteThisState[k] = mode_lib->ms.DETBufferSizeInKByteAllStates[j][k];
6233 mode_lib->ms.DETBufferSizeYThisState[k] = mode_lib->ms.DETBufferSizeYAllStates[j][k];
6234 mode_lib->ms.DETBufferSizeCThisState[k] = mode_lib->ms.DETBufferSizeCAllStates[j][k];
6235 }
6236
6237 mode_lib->ms.support.VActiveBandwithSupport[j] = CalculateVActiveBandwithSupport(
6238 mode_lib->ms.num_active_planes,
6239 mode_lib->ms.ReturnBWPerState[j],
6240 mode_lib->ms.NotUrgentLatencyHiding,
6241 mode_lib->ms.ReadBandwidthLuma,
6242 mode_lib->ms.ReadBandwidthChroma,
6243 mode_lib->ms.cursor_bw,
6244 mode_lib->ms.meta_row_bandwidth_this_state,
6245 mode_lib->ms.dpte_row_bandwidth_this_state,
6246 mode_lib->ms.NoOfDPPThisState,
6247 mode_lib->ms.UrgentBurstFactorLuma,
6248 mode_lib->ms.UrgentBurstFactorChroma,
6249 mode_lib->ms.UrgentBurstFactorCursor);
6250
6251 s->VMDataOnlyReturnBWPerState = dml_get_return_bw_mbps_vm_only(
6252 &mode_lib->ms.soc,
6253 mode_lib->ms.state.use_ideal_dram_bw_strobe,
6254 mode_lib->ms.cache_display_cfg.plane.HostVMEnable,
6255 mode_lib->ms.DCFCLKState[j],
6256 mode_lib->ms.state.fabricclk_mhz,
6257 mode_lib->ms.state.dram_speed_mts);
6258
6259 s->HostVMInefficiencyFactor = 1;
6260 if (mode_lib->ms.cache_display_cfg.plane.GPUVMEnable && mode_lib->ms.cache_display_cfg.plane.HostVMEnable)
6261 s->HostVMInefficiencyFactor = mode_lib->ms.ReturnBWPerState[j] / s->VMDataOnlyReturnBWPerState;
6262
6263 mode_lib->ms.ExtraLatency = CalculateExtraLatency(
6264 mode_lib->ms.soc.round_trip_ping_latency_dcfclk_cycles,
6265 s->ReorderingBytes,
6266 mode_lib->ms.DCFCLKState[j],
6267 mode_lib->ms.TotalNumberOfActiveDPP[j],
6268 mode_lib->ms.ip.pixel_chunk_size_kbytes,
6269 mode_lib->ms.TotalNumberOfDCCActiveDPP[j],
6270 mode_lib->ms.ip.meta_chunk_size_kbytes,
6271 mode_lib->ms.ReturnBWPerState[j],
6272 mode_lib->ms.cache_display_cfg.plane.GPUVMEnable,
6273 mode_lib->ms.cache_display_cfg.plane.HostVMEnable,
6274 mode_lib->ms.num_active_planes,
6275 mode_lib->ms.NoOfDPPThisState,
6276 mode_lib->ms.dpte_group_bytes,
6277 s->HostVMInefficiencyFactor,
6278 mode_lib->ms.soc.hostvm_min_page_size_kbytes,
6279 mode_lib->ms.cache_display_cfg.plane.HostVMMaxPageTableLevels);
6280
6281 s->NextMaxVStartup = s->MaxVStartupAllPlanes[j];
6282 s->MaxVStartup = 0;
6283 s->AllPrefetchModeTested = true;
6284 for (k = 0; k <= mode_lib->ms.num_active_planes - 1; k++) {
6285 CalculatePrefetchMode(mode_lib->ms.policy.AllowForPStateChangeOrStutterInVBlank[k], &s->MinPrefetchMode[k], &s->MaxPrefetchMode[k]);
6286 s->NextPrefetchMode[k] = s->MinPrefetchMode[k];
6287 }
6288
6289 do {
6290 s->MaxVStartup = s->NextMaxVStartup;
6291 s->AllPrefetchModeTested = true;
6292
6293 for (k = 0; k <= mode_lib->ms.num_active_planes - 1; k++) {
6294 mode_lib->ms.PrefetchMode[k] = s->NextPrefetchMode[k];
6295 mode_lib->ms.TWait = CalculateTWait(
6296 mode_lib->ms.PrefetchMode[k],
6297 mode_lib->ms.cache_display_cfg.plane.UseMALLForPStateChange[k],
6298 mode_lib->ms.policy.SynchronizeDRRDisplaysForUCLKPStateChangeFinal,
6299 mode_lib->ms.cache_display_cfg.timing.DRRDisplay[k],
6300 mode_lib->ms.state.dram_clock_change_latency_us,
6301 mode_lib->ms.state.fclk_change_latency_us,
6302 mode_lib->ms.UrgLatency,
6303 mode_lib->ms.state.sr_enter_plus_exit_time_us);
6304
6305 myPipe = &s->myPipe;
6306 myPipe->Dppclk = mode_lib->ms.RequiredDPPCLKPerSurface[j][k];
6307 myPipe->Dispclk = mode_lib->ms.RequiredDISPCLK[j];
6308 myPipe->PixelClock = mode_lib->ms.cache_display_cfg.timing.PixelClock[k];
6309 myPipe->DCFClkDeepSleep = mode_lib->ms.ProjectedDCFCLKDeepSleep[j];
6310 myPipe->DPPPerSurface = mode_lib->ms.NoOfDPP[j][k];
6311 myPipe->ScalerEnabled = mode_lib->ms.cache_display_cfg.plane.ScalerEnabled[k];
6312 myPipe->SourceScan = mode_lib->ms.cache_display_cfg.plane.SourceScan[k];
6313 myPipe->BlockWidth256BytesY = mode_lib->ms.Read256BlockWidthY[k];
6314 myPipe->BlockHeight256BytesY = mode_lib->ms.Read256BlockHeightY[k];
6315 myPipe->BlockWidth256BytesC = mode_lib->ms.Read256BlockWidthC[k];
6316 myPipe->BlockHeight256BytesC = mode_lib->ms.Read256BlockHeightC[k];
6317 myPipe->InterlaceEnable = mode_lib->ms.cache_display_cfg.timing.Interlace[k];
6318 myPipe->NumberOfCursors = mode_lib->ms.cache_display_cfg.plane.NumberOfCursors[k];
6319 myPipe->VBlank = mode_lib->ms.cache_display_cfg.timing.VTotal[k] - mode_lib->ms.cache_display_cfg.timing.VActive[k];
6320 myPipe->HTotal = mode_lib->ms.cache_display_cfg.timing.HTotal[k];
6321 myPipe->HActive = mode_lib->ms.cache_display_cfg.timing.HActive[k];
6322 myPipe->DCCEnable = mode_lib->ms.cache_display_cfg.surface.DCCEnable[k];
6323 myPipe->ODMMode = mode_lib->ms.ODMModePerState[k];
6324 myPipe->SourcePixelFormat = mode_lib->ms.cache_display_cfg.surface.SourcePixelFormat[k];
6325 myPipe->BytePerPixelY = mode_lib->ms.BytePerPixelY[k];
6326 myPipe->BytePerPixelC = mode_lib->ms.BytePerPixelC[k];
6327 myPipe->ProgressiveToInterlaceUnitInOPP = mode_lib->ms.ip.ptoi_supported;
6328
--
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