diff options
Diffstat (limited to 'drivers/gpu/pvr/dbgdrv/hostfunc.c')
| -rw-r--r-- | drivers/gpu/pvr/dbgdrv/hostfunc.c | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/drivers/gpu/pvr/dbgdrv/hostfunc.c b/drivers/gpu/pvr/dbgdrv/hostfunc.c new file mode 100644 index 0000000..18c8898 --- /dev/null +++ b/drivers/gpu/pvr/dbgdrv/hostfunc.c @@ -0,0 +1,324 @@ +/********************************************************************** + * + * 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> +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/mm.h> +#include <linux/string.h> +#include <asm/page.h> +#include <linux/vmalloc.h> +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)) +#include <linux/mutex.h> +#else +#include <asm/semaphore.h> +#endif +#include <linux/hardirq.h> + +#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS) +#include <linux/sched.h> +#include <linux/wait.h> +#include <linux/jiffies.h> +#include <linux/delay.h> +#endif + +#include "img_types.h" +#include "pvr_debug.h" + +#include "dbgdrvif.h" +#include "hostfunc.h" +#include "dbgdriv.h" + +#if defined(MODULE) && defined(DEBUG) && !defined(SUPPORT_DRI_DRM) +IMG_UINT32 gPVRDebugLevel = (DBGPRIV_FATAL | DBGPRIV_ERROR | DBGPRIV_WARNING); + +#define PVR_STRING_TERMINATOR '\0' +#define PVR_IS_FILE_SEPARATOR(character) ( ((character) == '\\') || ((character) == '/') ) + +void PVRSRVDebugPrintf ( + IMG_UINT32 ui32DebugLevel, + const IMG_CHAR* pszFileName, + IMG_UINT32 ui32Line, + const IMG_CHAR* pszFormat, + ... + ) +{ + IMG_BOOL bTrace; +#if !defined(__sh__) + IMG_CHAR *pszLeafName; + + pszLeafName = (char *)strrchr (pszFileName, '\\'); + + if (pszLeafName) + { + pszFileName = pszLeafName; + } +#endif + + bTrace = (IMG_BOOL)(ui32DebugLevel & DBGPRIV_CALLTRACE) ? IMG_TRUE : IMG_FALSE; + + if (gPVRDebugLevel & ui32DebugLevel) + { + va_list vaArgs; + char szBuffer[256]; + char *szBufferEnd = szBuffer; + char *szBufferLimit = szBuffer + sizeof(szBuffer) - 1; + + + *szBufferLimit = '\0'; + + snprintf(szBufferEnd, szBufferLimit - szBufferEnd, "PVR_K:"); + szBufferEnd += strlen(szBufferEnd); + + + if (bTrace == IMG_FALSE) + { + switch(ui32DebugLevel) + { + case DBGPRIV_FATAL: + { + snprintf(szBufferEnd, szBufferLimit - szBufferEnd, "(Fatal):"); + break; + } + case DBGPRIV_ERROR: + { + snprintf(szBufferEnd, szBufferLimit - szBufferEnd, "(Error):"); + break; + } + case DBGPRIV_WARNING: + { + snprintf(szBufferEnd, szBufferLimit - szBufferEnd, "(Warning):"); + break; + } + case DBGPRIV_MESSAGE: + { + snprintf(szBufferEnd, szBufferLimit - szBufferEnd, "(Message):"); + break; + } + case DBGPRIV_VERBOSE: + { + snprintf(szBufferEnd, szBufferLimit - szBufferEnd, "(Verbose):"); + break; + } + default: + { + snprintf(szBufferEnd, szBufferLimit - szBufferEnd, "(Unknown message level)"); + break; + } + } + szBufferEnd += strlen(szBufferEnd); + } + snprintf(szBufferEnd, szBufferLimit - szBufferEnd, " "); + szBufferEnd += strlen(szBufferEnd); + + va_start (vaArgs, pszFormat); + vsnprintf(szBufferEnd, szBufferLimit - szBufferEnd, pszFormat, vaArgs); + va_end (vaArgs); + szBufferEnd += strlen(szBufferEnd); + + + if (bTrace == IMG_FALSE) + { + snprintf(szBufferEnd, szBufferLimit - szBufferEnd, + " [%d, %s]", (int)ui32Line, pszFileName); + szBufferEnd += strlen(szBufferEnd); + } + + printk(KERN_INFO "%s\r\n", szBuffer); + } +} +#endif + +IMG_VOID HostMemSet(IMG_VOID *pvDest, IMG_UINT8 ui8Value, IMG_UINT32 ui32Size) +{ + memset(pvDest, (int) ui8Value, (size_t) ui32Size); +} + +IMG_VOID HostMemCopy(IMG_VOID *pvDst, IMG_VOID *pvSrc, IMG_UINT32 ui32Size) +{ +#if defined(USE_UNOPTIMISED_MEMCPY) + unsigned char *src,*dst; + int i; + + src=(unsigned char *)pvSrc; + dst=(unsigned char *)pvDst; + for(i=0;i<ui32Size;i++) + { + dst[i]=src[i]; + } +#else + memcpy(pvDst, pvSrc, ui32Size); +#endif +} + +IMG_UINT32 HostReadRegistryDWORDFromString(char *pcKey, char *pcValueName, IMG_UINT32 *pui32Data) +{ + + return 0; +} + +IMG_VOID * HostPageablePageAlloc(IMG_UINT32 ui32Pages) +{ + return (void*)vmalloc(ui32Pages * PAGE_SIZE); +} + +IMG_VOID HostPageablePageFree(IMG_VOID * pvBase) +{ + vfree(pvBase); +} + +IMG_VOID * HostNonPageablePageAlloc(IMG_UINT32 ui32Pages) +{ + return (void*)vmalloc(ui32Pages * PAGE_SIZE); +} + +IMG_VOID HostNonPageablePageFree(IMG_VOID * pvBase) +{ + vfree(pvBase); +} + +IMG_VOID * HostMapKrnBufIntoUser(IMG_VOID * pvKrnAddr, IMG_UINT32 ui32Size, IMG_VOID **ppvMdl) +{ + + return IMG_NULL; +} + +IMG_VOID HostUnMapKrnBufFromUser(IMG_VOID * pvUserAddr, IMG_VOID * pvMdl, IMG_VOID * pvProcess) +{ + +} + +IMG_VOID HostCreateRegDeclStreams(IMG_VOID) +{ + +} + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) +typedef struct mutex MUTEX; +#define INIT_MUTEX(m) mutex_init(m) +#define DOWN_TRYLOCK(m) (!mutex_trylock(m)) +#define DOWN(m) mutex_lock(m) +#define UP(m) mutex_unlock(m) +#else +typedef struct semaphore MUTEX; +#define INIT_MUTEX(m) init_MUTEX(m) +#define DOWN_TRYLOCK(m) down_trylock(m) +#define DOWN(m) down(m) +#define UP(m) up(m) +#endif + +IMG_VOID *HostCreateMutex(IMG_VOID) +{ + MUTEX *psMutex; + + psMutex = kmalloc(sizeof(*psMutex), GFP_KERNEL); + if (psMutex) + { + INIT_MUTEX(psMutex); + } + + return psMutex; +} + +IMG_VOID HostAquireMutex(IMG_VOID * pvMutex) +{ + BUG_ON(in_interrupt()); + +#if defined(PVR_DEBUG_DBGDRV_DETECT_HOST_MUTEX_COLLISIONS) + if (DOWN_TRYLOCK((MUTEX *)pvMutex)) + { + printk(KERN_INFO "HostAquireMutex: Waiting for mutex\n"); + DOWN((MUTEX *)pvMutex); + } +#else + DOWN((MUTEX *)pvMutex); +#endif +} + +IMG_VOID HostReleaseMutex(IMG_VOID * pvMutex) +{ + UP((MUTEX *)pvMutex); +} + +IMG_VOID HostDestroyMutex(IMG_VOID * pvMutex) +{ + if (pvMutex) + { + kfree(pvMutex); + } +} + +#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS) + +#define EVENT_WAIT_TIMEOUT_MS 500 +#define EVENT_WAIT_TIMEOUT_JIFFIES (EVENT_WAIT_TIMEOUT_MS * HZ / 1000) + +static int iStreamData; +static wait_queue_head_t sStreamDataEvent; + +IMG_INT32 HostCreateEventObjects(IMG_VOID) +{ + init_waitqueue_head(&sStreamDataEvent); + + return 0; +} + +IMG_VOID HostWaitForEvent(DBG_EVENT eEvent) +{ + switch(eEvent) + { + case DBG_EVENT_STREAM_DATA: + + wait_event_interruptible_timeout(sStreamDataEvent, iStreamData != 0, EVENT_WAIT_TIMEOUT_JIFFIES); + iStreamData = 0; + break; + default: + + msleep_interruptible(EVENT_WAIT_TIMEOUT_MS); + break; + } +} + +IMG_VOID HostSignalEvent(DBG_EVENT eEvent) +{ + switch(eEvent) + { + case DBG_EVENT_STREAM_DATA: + iStreamData = 1; + wake_up_interruptible(&sStreamDataEvent); + break; + default: + break; + } +} + +IMG_VOID HostDestroyEventObjects(IMG_VOID) +{ +} +#endif |