| /*************************************************************************/ /*! |
| @File htbuffer.c |
| @Title Host Trace Buffer shared API. |
| @Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved |
| @Description Host Trace Buffer provides a mechanism to log Host events to a |
| buffer in a similar way to the Firmware Trace mechanism. |
| Host Trace Buffer logs data using a Transport Layer buffer. |
| The Transport Layer and pvrtld tool provides the mechanism to |
| retrieve the trace data. |
| @License Dual MIT/GPLv2 |
| |
| The contents of this file are subject to the MIT license as set out below. |
| |
| Permission is hereby granted, free of charge, to any person obtaining a copy |
| of this software and associated documentation files (the "Software"), to deal |
| in the Software without restriction, including without limitation the rights |
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| copies of the Software, and to permit persons to whom the Software is |
| furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be included in |
| all copies or substantial portions of the Software. |
| |
| Alternatively, the contents of this file may be used under the terms of |
| the GNU General Public License Version 2 ("GPL") in which case the provisions |
| of GPL are applicable instead of those above. |
| |
| If you wish to allow use of your version of this file only under the terms of |
| GPL, and not to allow others to use your version of this file under the terms |
| of the MIT license, indicate your decision by deleting the provisions above |
| and replace them with the notice and other provisions required by GPL as set |
| out in the file called "GPL-COPYING" included in this distribution. If you do |
| not delete the provisions above, a recipient may use your version of this file |
| under the terms of either the MIT license or GPL. |
| |
| This License is also included in this distribution in the file called |
| "MIT-COPYING". |
| |
| EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS |
| PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
| BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
| PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR |
| COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
| IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ /**************************************************************************/ |
| |
| #include <stdarg.h> |
| #include "htbuffer.h" |
| //#include "allocmem.h" |
| #include "osfunc.h" |
| #include "client_htbuffer_bridge.h" |
| #if defined(__KERNEL__) |
| //#include "osfunc.h" |
| #endif |
| |
| /* the group flags array of ints large enough to store all the group flags |
| * NB: This will only work while all logging is in the kernel |
| */ |
| IMG_INTERNAL HTB_FLAG_EL_T g_auiHTBGroupEnable[HTB_FLAG_NUM_EL] = {0}; |
| |
| /*************************************************************************/ /*! |
| @Function HTBControl |
| @Description Update the configuration of the Host Trace Buffer |
| |
| @Input hSrvHandle Server Handle |
| |
| @Input ui32NumFlagGroups Number of group enable flags words |
| |
| @Input aui32GroupEnable Flags words controlling groups to be logged |
| |
| @Input ui32LogLevel Log level to record |
| |
| @Input ui32EnablePID PID to enable logging for a specific process |
| |
| @Input eLogPidMode Enable logging for all or specific processes, |
| |
| @Input eOpMode Control what trace data is dropped if the TL |
| buffer is full |
| |
| @Return eError Internal services call returned eError error |
| number |
| */ /**************************************************************************/ |
| IMG_INTERNAL PVRSRV_ERROR |
| HTBControl( |
| IMG_HANDLE hSrvHandle, |
| IMG_UINT32 ui32NumFlagGroups, |
| IMG_UINT32 * aui32GroupEnable, |
| IMG_UINT32 ui32LogLevel, |
| IMG_UINT32 ui32EnablePID, |
| HTB_LOGMODE_CTRL eLogPidMode, |
| HTB_OPMODE_CTRL eOpMode |
| ) |
| { |
| return BridgeHTBControl( |
| hSrvHandle, |
| ui32NumFlagGroups, |
| aui32GroupEnable, |
| ui32LogLevel, |
| ui32EnablePID, |
| eLogPidMode, |
| eOpMode |
| ); |
| } |
| |
| |
| /*************************************************************************/ /*! |
| */ /**************************************************************************/ |
| static PVRSRV_ERROR |
| _HTBLog(IMG_HANDLE hSrvHandle, IMG_UINT32 PID, IMG_UINT64 ui64TimeStampus, HTB_LOG_SFids SF, va_list args) |
| { |
| #if defined(__KERNEL__) |
| IMG_UINT32 i; |
| IMG_UINT32 ui32NumArgs = HTB_SF_PARAMNUM(SF); |
| IMG_UINT32 aui32Args[HTB_LOG_MAX_PARAMS]; |
| |
| PVR_ASSERT(ui32NumArgs <= HTB_LOG_MAX_PARAMS); |
| ui32NumArgs = (ui32NumArgs>HTB_LOG_MAX_PARAMS)? HTB_LOG_MAX_PARAMS: ui32NumArgs; |
| |
| /* unpack var args before sending over bridge */ |
| for (i=0; i<ui32NumArgs; i++) |
| { |
| aui32Args[i] = va_arg(args, IMG_UINT32); |
| } |
| |
| return BridgeHTBLog(hSrvHandle, PID, ui64TimeStampus, SF, ui32NumArgs, aui32Args); |
| #else |
| PVR_UNREFERENCED_PARAMETER(hSrvHandle); |
| PVR_UNREFERENCED_PARAMETER(PID); |
| PVR_UNREFERENCED_PARAMETER(ui64TimeStampus); |
| PVR_UNREFERENCED_PARAMETER(SF); |
| PVR_UNREFERENCED_PARAMETER(args); |
| |
| PVR_ASSERT(0=="HTB Logging in UM is not yet supported"); |
| return PVRSRV_ERROR_NOT_SUPPORTED; |
| #endif |
| } |
| |
| |
| /*************************************************************************/ /*! |
| @Function HTBLog |
| @Description Record a Host Trace Buffer log event |
| |
| @Input PID The PID of the process the event is associated |
| with. This is provided as an argument rather |
| than querying internally so that events associated |
| with a particular process, but performed by |
| another can be logged correctly. |
| |
| @Input ui64TimeStampus The timestamp to be associated with this log event |
| |
| @Input SF The log event ID |
| |
| @Input ... Log parameters |
| |
| @Return PVRSRV_OK Success. |
| |
| */ /**************************************************************************/ |
| IMG_INTERNAL PVRSRV_ERROR |
| HTBLog(IMG_HANDLE hSrvHandle, IMG_UINT32 PID, IMG_UINT64 ui64TimeStampns, IMG_UINT32 SF, ...) |
| { |
| PVRSRV_ERROR eError; |
| va_list args; |
| va_start(args, SF); |
| eError =_HTBLog(hSrvHandle, PID, ui64TimeStampns, SF, args); |
| va_end(args); |
| return eError; |
| } |
| |
| |
| /*************************************************************************/ /*! |
| @Function HTBLogSimple |
| @Description Record a Host Trace Buffer log event with implicit PID and Timestamp |
| |
| @Input SF The log event ID |
| |
| @Input ... Log parameters |
| |
| @Return PVRSRV_OK Success. |
| |
| */ /**************************************************************************/ |
| IMG_INTERNAL PVRSRV_ERROR |
| HTBLogSimple(IMG_HANDLE hSrvHandle, IMG_UINT32 SF, ...) |
| { |
| PVRSRV_ERROR eError; |
| IMG_UINT64 ui64Timestamp; |
| va_list args; |
| va_start(args, SF); |
| OSClockMonotonicns64(&ui64Timestamp); |
| eError = _HTBLog(hSrvHandle, OSGetCurrentProcessID(), ui64Timestamp, SF, args); |
| va_end(args); |
| return eError; |
| } |
| |
| |
| /* EOF */ |
| |