diff options
Diffstat (limited to 'drivers/gpu/pvr/pvr_debug.c')
| -rw-r--r-- | drivers/gpu/pvr/pvr_debug.c | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/drivers/gpu/pvr/pvr_debug.c b/drivers/gpu/pvr/pvr_debug.c new file mode 100644 index 0000000..9f0016f --- /dev/null +++ b/drivers/gpu/pvr/pvr_debug.c @@ -0,0 +1,453 @@ +/********************************************************************** + * + * Copyright (C) Imagination Technologies Ltd. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful but, except + * as otherwise stated in writing, without any warranty; without even the + * implied warranty of merchantability or fitness for a particular purpose. + * See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Contact Information: + * Imagination Technologies Ltd. <gpl-support@imgtec.com> + * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK + * + ******************************************************************************/ + +#include <linux/version.h> + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)) +#ifndef AUTOCONF_INCLUDED +#include <linux/config.h> +#endif +#endif + +#include <asm/io.h> +#include <asm/uaccess.h> +#include <linux/kernel.h> +#include <linux/hardirq.h> +#include <linux/module.h> +#include <linux/spinlock.h> +#include <linux/string.h> +#include <stdarg.h> +#include "img_types.h" +#include "servicesext.h" +#include "pvr_debug.h" +#include "srvkm.h" +#include "proc.h" +#include "mutex.h" +#include "linkage.h" +#include "pvr_uaccess.h" + +#if !defined(CONFIG_PREEMPT) +#define PVR_DEBUG_ALWAYS_USE_SPINLOCK +#endif + +static IMG_BOOL VBAppend(IMG_CHAR *pszBuf, IMG_UINT32 ui32BufSiz, + const IMG_CHAR* pszFormat, va_list VArgs) + IMG_FORMAT_PRINTF(3, 0); + + +#if defined(PVRSRV_NEED_PVR_DPF) + +#define PVR_MAX_FILEPATH_LEN 256 + +static IMG_BOOL BAppend(IMG_CHAR *pszBuf, IMG_UINT32 ui32BufSiz, + const IMG_CHAR *pszFormat, ...) + IMG_FORMAT_PRINTF(3, 4); + +IMG_UINT32 gPVRDebugLevel = + (DBGPRIV_FATAL | DBGPRIV_ERROR | DBGPRIV_WARNING); + +#endif + +#define PVR_MAX_MSG_LEN PVR_MAX_DEBUG_MESSAGE_LEN + +#if !defined(PVR_DEBUG_ALWAYS_USE_SPINLOCK) +static IMG_CHAR gszBufferNonIRQ[PVR_MAX_MSG_LEN + 1]; +#endif + +static IMG_CHAR gszBufferIRQ[PVR_MAX_MSG_LEN + 1]; + +#if !defined(PVR_DEBUG_ALWAYS_USE_SPINLOCK) +static PVRSRV_LINUX_MUTEX gsDebugMutexNonIRQ; +#endif + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) + +static spinlock_t gsDebugLockIRQ = SPIN_LOCK_UNLOCKED; +#else +static DEFINE_SPINLOCK(gsDebugLockIRQ); +#endif + +#if !defined(PVR_DEBUG_ALWAYS_USE_SPINLOCK) +#if !defined (USE_SPIN_LOCK) +#define USE_SPIN_LOCK (in_interrupt() || !preemptible()) +#endif +#endif + +static inline void GetBufferLock(unsigned long *pulLockFlags) +{ +#if !defined(PVR_DEBUG_ALWAYS_USE_SPINLOCK) + if (USE_SPIN_LOCK) +#endif + { + spin_lock_irqsave(&gsDebugLockIRQ, *pulLockFlags); + } +#if !defined(PVR_DEBUG_ALWAYS_USE_SPINLOCK) + else + { + LinuxLockMutex(&gsDebugMutexNonIRQ); + } +#endif +} + +static inline void ReleaseBufferLock(unsigned long ulLockFlags) +{ +#if !defined(PVR_DEBUG_ALWAYS_USE_SPINLOCK) + if (USE_SPIN_LOCK) +#endif + { + spin_unlock_irqrestore(&gsDebugLockIRQ, ulLockFlags); + } +#if !defined(PVR_DEBUG_ALWAYS_USE_SPINLOCK) + else + { + LinuxUnLockMutex(&gsDebugMutexNonIRQ); + } +#endif +} + +static inline void SelectBuffer(IMG_CHAR **ppszBuf, IMG_UINT32 *pui32BufSiz) +{ +#if !defined(PVR_DEBUG_ALWAYS_USE_SPINLOCK) + if (USE_SPIN_LOCK) +#endif + { + *ppszBuf = gszBufferIRQ; + *pui32BufSiz = sizeof(gszBufferIRQ); + } +#if !defined(PVR_DEBUG_ALWAYS_USE_SPINLOCK) + else + { + *ppszBuf = gszBufferNonIRQ; + *pui32BufSiz = sizeof(gszBufferNonIRQ); + } +#endif +} + +static IMG_BOOL VBAppend(IMG_CHAR *pszBuf, IMG_UINT32 ui32BufSiz, const IMG_CHAR* pszFormat, va_list VArgs) +{ + IMG_UINT32 ui32Used; + IMG_UINT32 ui32Space; + IMG_INT32 i32Len; + + ui32Used = strlen(pszBuf); + BUG_ON(ui32Used >= ui32BufSiz); + ui32Space = ui32BufSiz - ui32Used; + + i32Len = vsnprintf(&pszBuf[ui32Used], ui32Space, pszFormat, VArgs); + pszBuf[ui32BufSiz - 1] = 0; + + + return (i32Len < 0 || i32Len >= (IMG_INT32)ui32Space) ? IMG_TRUE : IMG_FALSE; +} + +IMG_VOID PVRDPFInit(IMG_VOID) +{ +#if !defined(PVR_DEBUG_ALWAYS_USE_SPINLOCK) + LinuxInitMutex(&gsDebugMutexNonIRQ); +#endif +} + +IMG_VOID PVRSRVReleasePrintf(const IMG_CHAR *pszFormat, ...) +{ + va_list vaArgs; + unsigned long ulLockFlags = 0; + IMG_CHAR *pszBuf; + IMG_UINT32 ui32BufSiz; + + SelectBuffer(&pszBuf, &ui32BufSiz); + + va_start(vaArgs, pszFormat); + + GetBufferLock(&ulLockFlags); + strncpy (pszBuf, "PVR_K: ", (ui32BufSiz -1)); + + if (VBAppend(pszBuf, ui32BufSiz, pszFormat, vaArgs)) + { + printk(KERN_INFO "PVR_K:(Message Truncated): %s\n", pszBuf); + } + else + { + printk(KERN_INFO "%s\n", pszBuf); + } + + ReleaseBufferLock(ulLockFlags); + va_end(vaArgs); + +} + +#if defined(PVRSRV_NEED_PVR_ASSERT) + +IMG_VOID PVRSRVDebugAssertFail(const IMG_CHAR* pszFile, IMG_UINT32 uLine) +{ + PVRSRVDebugPrintf(DBGPRIV_FATAL, pszFile, uLine, "Debug assertion failed!"); + BUG(); +} + +#endif + +#if defined(PVRSRV_NEED_PVR_TRACE) + +IMG_VOID PVRSRVTrace(const IMG_CHAR* pszFormat, ...) +{ + va_list VArgs; + unsigned long ulLockFlags = 0; + IMG_CHAR *pszBuf; + IMG_UINT32 ui32BufSiz; + + SelectBuffer(&pszBuf, &ui32BufSiz); + + va_start(VArgs, pszFormat); + + GetBufferLock(&ulLockFlags); + + strncpy(pszBuf, "PVR: ", (ui32BufSiz -1)); + + if (VBAppend(pszBuf, ui32BufSiz, pszFormat, VArgs)) + { + printk(KERN_INFO "PVR_K:(Message Truncated): %s\n", pszBuf); + } + else + { + printk(KERN_INFO "%s\n", pszBuf); + } + + ReleaseBufferLock(ulLockFlags); + + va_end(VArgs); +} + +#endif + +#if defined(PVRSRV_NEED_PVR_DPF) + +static IMG_BOOL BAppend(IMG_CHAR *pszBuf, IMG_UINT32 ui32BufSiz, const IMG_CHAR *pszFormat, ...) +{ + va_list VArgs; + IMG_BOOL bTrunc; + + va_start (VArgs, pszFormat); + + bTrunc = VBAppend(pszBuf, ui32BufSiz, pszFormat, VArgs); + + va_end (VArgs); + + return bTrunc; +} + +IMG_VOID PVRSRVDebugPrintf ( + IMG_UINT32 ui32DebugLevel, + const IMG_CHAR* pszFullFileName, + IMG_UINT32 ui32Line, + const IMG_CHAR* pszFormat, + ... + ) +{ + IMG_BOOL bTrace; + const IMG_CHAR *pszFileName = pszFullFileName; + IMG_CHAR *pszLeafName; + + + bTrace = (IMG_BOOL)(ui32DebugLevel & DBGPRIV_CALLTRACE) ? IMG_TRUE : IMG_FALSE; + + if (gPVRDebugLevel & ui32DebugLevel) + { + va_list vaArgs; + unsigned long ulLockFlags = 0; + IMG_CHAR *pszBuf; + IMG_UINT32 ui32BufSiz; + + SelectBuffer(&pszBuf, &ui32BufSiz); + + va_start(vaArgs, pszFormat); + + GetBufferLock(&ulLockFlags); + + + if (bTrace == IMG_FALSE) + { + switch(ui32DebugLevel) + { + case DBGPRIV_FATAL: + { + strncpy (pszBuf, "PVR_K:(Fatal): ", (ui32BufSiz -1)); + break; + } + case DBGPRIV_ERROR: + { + strncpy (pszBuf, "PVR_K:(Error): ", (ui32BufSiz -1)); + break; + } + case DBGPRIV_WARNING: + { + strncpy (pszBuf, "PVR_K:(Warning): ", (ui32BufSiz -1)); + break; + } + case DBGPRIV_MESSAGE: + { + strncpy (pszBuf, "PVR_K:(Message): ", (ui32BufSiz -1)); + break; + } + case DBGPRIV_VERBOSE: + { + strncpy (pszBuf, "PVR_K:(Verbose): ", (ui32BufSiz -1)); + break; + } + default: + { + strncpy (pszBuf, "PVR_K:(Unknown message level)", (ui32BufSiz -1)); + break; + } + } + } + else + { + strncpy (pszBuf, "PVR_K: ", (ui32BufSiz -1)); + } + + if (VBAppend(pszBuf, ui32BufSiz, pszFormat, vaArgs)) + { + printk(KERN_INFO "PVR_K:(Message Truncated): %s\n", pszBuf); + } + else + { + + if (bTrace == IMG_FALSE) + { +#ifdef DEBUG_LOG_PATH_TRUNCATE + + static IMG_CHAR szFileNameRewrite[PVR_MAX_FILEPATH_LEN]; + + IMG_CHAR* pszTruncIter; + IMG_CHAR* pszTruncBackInter; + + + if (strlen(pszFullFileName) > strlen(DEBUG_LOG_PATH_TRUNCATE)+1) + pszFileName = pszFullFileName + strlen(DEBUG_LOG_PATH_TRUNCATE)+1; + + + strncpy(szFileNameRewrite, pszFileName,PVR_MAX_FILEPATH_LEN); + + if(strlen(szFileNameRewrite) == PVR_MAX_FILEPATH_LEN-1) { + IMG_CHAR szTruncateMassage[] = "FILENAME TRUNCATED"; + strcpy(szFileNameRewrite + (PVR_MAX_FILEPATH_LEN - 1 - strlen(szTruncateMassage)), szTruncateMassage); + } + + pszTruncIter = szFileNameRewrite; + while(*pszTruncIter++ != 0) + { + IMG_CHAR* pszNextStartPoint; + + if( + !( ( *pszTruncIter == '/' && (pszTruncIter-4 >= szFileNameRewrite) ) && + ( *(pszTruncIter-1) == '.') && + ( *(pszTruncIter-2) == '.') && + ( *(pszTruncIter-3) == '/') ) + ) continue; + + + pszTruncBackInter = pszTruncIter - 3; + while(*(--pszTruncBackInter) != '/') + { + if(pszTruncBackInter <= szFileNameRewrite) break; + } + pszNextStartPoint = pszTruncBackInter; + + + while(*pszTruncIter != 0) + { + *pszTruncBackInter++ = *pszTruncIter++; + } + *pszTruncBackInter = 0; + + + pszTruncIter = pszNextStartPoint; + } + + pszFileName = szFileNameRewrite; + + if(*pszFileName == '/') pszFileName++; +#endif + +#if !defined(__sh__) + pszLeafName = (IMG_CHAR *)strrchr (pszFileName, '\\'); + + if (pszLeafName) + { + pszFileName = pszLeafName; + } +#endif + + if (BAppend(pszBuf, ui32BufSiz, " [%u, %s]", ui32Line, pszFileName)) + { + printk(KERN_INFO "PVR_K:(Message Truncated): %s\n", pszBuf); + } + else + { + printk(KERN_INFO "%s\n", pszBuf); + } + } + else + { + printk(KERN_INFO "%s\n", pszBuf); + } + } + + ReleaseBufferLock(ulLockFlags); + + va_end (vaArgs); + } +} + +#endif + +#if defined(DEBUG) + +IMG_INT PVRDebugProcSetLevel(struct file *file, const IMG_CHAR *buffer, IMG_UINT32 count, IMG_VOID *data) +{ +#define _PROC_SET_BUFFER_SZ 2 + IMG_CHAR data_buffer[_PROC_SET_BUFFER_SZ]; + + if (count != _PROC_SET_BUFFER_SZ) + { + return -EINVAL; + } + else + { + if (pvr_copy_from_user(data_buffer, buffer, count)) + return -EINVAL; + if (data_buffer[count - 1] != '\n') + return -EINVAL; + gPVRDebugLevel = data_buffer[0] - '0'; + } + return (count); +} + +void ProcSeqShowDebugLevel(struct seq_file *sfile,void* el) +{ + seq_printf(sfile, "%u\n", gPVRDebugLevel); +} + +#endif |