IKXCLOCK-343 Initial TI SGX Android DDK version 1.9@2166536

Original source code pulled in from TI SGX Android DDK 1.9@2166536

Change-Id: Ibcdb0016a6b1ca2e26583c578eb690cc9cd57708

1 files changed, 272 insertions, 0 deletions

diff --git a/drivers/gpu/pvr/services4/srvkm/common/mem_debug.c b/drivers/gpu/pvr/services4/srvkm/common/mem_debug.c
new file mode 100644
index 00000000000..04432b1f2c3
--- /dev/null
+++ b/drivers/gpu/pvr/services4/srvkm/common/mem_debug.c
@@ -0,0 +1,272 @@
+/*************************************************************************/ /*!
+@Title          Memory debugging routines.
+@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
+@Description    Adds extra memory to the allocations to trace the memory bounds
+                and other runtime information.
+@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.
+*/ /**************************************************************************/
+
+#ifndef MEM_DEBUG_C
+#define MEM_DEBUG_C
+
+#if defined(PVRSRV_DEBUG_OS_MEMORY)
+
+#include "img_types.h"
+#include "services_headers.h"
+
+#if defined (__cplusplus)
+extern "C"
+{
+#endif
+
+#define STOP_ON_ERROR 0
+
+	/*
+	 Allocated Memory Layout:
+	 
+	 ---------                     \
+	 Status    [OSMEM_DEBUG_INFO]   |- TEST_BUFFER_PADDING_STATUS
+	 ---------                     <
+	 [0xBB]*   [raw bytes]          |- ui32Size 
+	 ---------                     <
+	 [0xB2]*   [raw bytes]          |- TEST_BUFFER_PADDING_AFTER
+	 ---------                     /
+	*/
+
+	IMG_BOOL MemCheck(const IMG_PVOID pvAddr, const IMG_UINT8 ui8Pattern, IMG_SIZE_T uSize)
+	{
+		IMG_UINT8 *pui8Addr;
+		for (pui8Addr = (IMG_UINT8*)pvAddr; uSize > 0; uSize--, pui8Addr++)
+		{
+			if (*pui8Addr != ui8Pattern)
+			{
+				return IMG_FALSE;
+			}
+		}
+		return IMG_TRUE;
+	}
+
+	/*
+	This function expects the pointer to the user data, not the debug data.
+	*/
+	IMG_VOID OSCheckMemDebug(IMG_PVOID pvCpuVAddr, IMG_SIZE_T uSize, const IMG_CHAR *pszFileName, const IMG_UINT32 uLine)
+	{
+		OSMEM_DEBUG_INFO const *psInfo = (OSMEM_DEBUG_INFO *)((IMG_UINT32)pvCpuVAddr - TEST_BUFFER_PADDING_STATUS);
+
+		/* invalid pointer */
+		if (pvCpuVAddr == IMG_NULL)
+		{
+			PVR_DPF((PVR_DBG_ERROR, "Pointer 0x%X : null pointer"
+					 " - referenced %s:%d - allocated %s:%d",
+					 pvCpuVAddr,
+					 pszFileName, uLine,
+					 psInfo->sFileName, psInfo->uLineNo));
+			while (STOP_ON_ERROR);
+		}
+
+		/* align */
+		if (((IMG_UINT32)pvCpuVAddr&3) != 0)
+		{
+			PVR_DPF((PVR_DBG_ERROR, "Pointer 0x%X : invalid alignment"
+					 " - referenced %s:%d - allocated %s:%d",
+					 pvCpuVAddr,
+					 pszFileName, uLine,
+					 psInfo->sFileName, psInfo->uLineNo));
+			while (STOP_ON_ERROR);
+		}
+
+		/*check guard region before*/
+		if (!MemCheck((IMG_PVOID)psInfo->sGuardRegionBefore, 0xB1, sizeof(psInfo->sGuardRegionBefore)))
+		{
+			PVR_DPF((PVR_DBG_ERROR, "Pointer 0x%X : guard region before overwritten"
+					 " - referenced %s:%d - allocated %s:%d",
+					 pvCpuVAddr,
+					 pszFileName, uLine,
+					 psInfo->sFileName, psInfo->uLineNo));
+			while (STOP_ON_ERROR);
+		}
+
+		/*check size*/
+		if (uSize != psInfo->uSize)
+		{
+			PVR_DPF((PVR_DBG_WARNING, "Pointer 0x%X : supplied size was different to stored size (0x%X != 0x%X)"
+					 " - referenced %s:%d - allocated %s:%d",
+					 pvCpuVAddr, uSize, psInfo->uSize,
+					 pszFileName, uLine,
+					 psInfo->sFileName, psInfo->uLineNo));
+			while (STOP_ON_ERROR);
+		}
+
+		/*check size parity*/
+		if ((0x01234567 ^ psInfo->uSizeParityCheck) != psInfo->uSize)
+		{
+			PVR_DPF((PVR_DBG_WARNING, "Pointer 0x%X : stored size parity error (0x%X != 0x%X)"
+					 " - referenced %s:%d - allocated %s:%d",
+					 pvCpuVAddr, psInfo->uSize, 0x01234567 ^ psInfo->uSizeParityCheck,
+					 pszFileName, uLine,
+					 psInfo->sFileName, psInfo->uLineNo));
+			while (STOP_ON_ERROR);
+		}
+		else
+		{
+			/*the stored size is ok, so we use it instead the supplied uSize*/
+			uSize = psInfo->uSize;
+		}
+
+		/*check padding after*/
+		if (uSize)
+		{
+			if (!MemCheck((IMG_VOID*)((IMG_UINT32)pvCpuVAddr + uSize), 0xB2, TEST_BUFFER_PADDING_AFTER))
+			{
+				PVR_DPF((PVR_DBG_ERROR, "Pointer 0x%X : guard region after overwritten"
+						 " - referenced from %s:%d - allocated from %s:%d",
+						 pvCpuVAddr,
+						 pszFileName, uLine,
+						 psInfo->sFileName, psInfo->uLineNo));
+			}
+		}
+
+		/* allocated... */
+		if (psInfo->eValid != isAllocated)
+		{
+			PVR_DPF((PVR_DBG_ERROR, "Pointer 0x%X : not allocated (freed? %d)"
+					 " - referenced %s:%d - freed %s:%d",
+					 pvCpuVAddr, psInfo->eValid == isFree,
+					 pszFileName, uLine,
+					 psInfo->sFileName, psInfo->uLineNo));
+			while (STOP_ON_ERROR);
+		}
+	}
+
+	IMG_VOID debug_strcpy(IMG_CHAR *pDest, const IMG_CHAR *pSrc)
+	{
+		IMG_SIZE_T i = 0;
+
+		for (; i < 128; i++) /*changed to 128 to match the filename array size*/
+		{
+			*pDest = *pSrc;
+			if (*pSrc == '\0') break;
+			pDest++;
+			pSrc++;
+		}
+	}
+
+	PVRSRV_ERROR OSAllocMem_Debug_Wrapper(IMG_UINT32 ui32Flags,
+										  IMG_UINT32 ui32Size,
+										  IMG_PVOID *ppvCpuVAddr,
+										  IMG_HANDLE *phBlockAlloc,
+										  IMG_CHAR *pszFilename,
+										  IMG_UINT32 ui32Line)
+	{
+		OSMEM_DEBUG_INFO *psInfo;
+
+		PVRSRV_ERROR eError;
+
+		eError = OSAllocMem_Debug_Linux_Memory_Allocations(ui32Flags,
+				 ui32Size + TEST_BUFFER_PADDING,
+				 ppvCpuVAddr,
+				 phBlockAlloc,
+				 pszFilename,
+				 ui32Line);
+
+		if (eError != PVRSRV_OK)
+		{
+			return eError;
+		}
+
+		OSMemSet((IMG_CHAR *)(*ppvCpuVAddr) + TEST_BUFFER_PADDING_STATUS, 0xBB, ui32Size);
+		OSMemSet((IMG_CHAR *)(*ppvCpuVAddr) + ui32Size + TEST_BUFFER_PADDING_STATUS, 0xB2, TEST_BUFFER_PADDING_AFTER);
+
+		/*fill the dbg info struct*/
+		psInfo = (OSMEM_DEBUG_INFO *)(*ppvCpuVAddr);
+
+		OSMemSet(psInfo->sGuardRegionBefore, 0xB1, sizeof(psInfo->sGuardRegionBefore));
+		debug_strcpy(psInfo->sFileName, pszFilename);
+		psInfo->uLineNo = ui32Line;
+		psInfo->eValid = isAllocated;
+		psInfo->uSize = ui32Size;
+		psInfo->uSizeParityCheck = 0x01234567 ^ ui32Size;
+
+		/*point to the user data section*/
+		*ppvCpuVAddr = (IMG_PVOID) ((IMG_UINT32)*ppvCpuVAddr)+TEST_BUFFER_PADDING_STATUS;
+
+#ifdef PVRSRV_LOG_MEMORY_ALLOCS
+		/*this is here to simplify the surounding logging macro, that is a expression
+		maybe the macro should be an expression */
+		PVR_TRACE(("Allocated pointer (after debug info): 0x%X from %s:%d", *ppvCpuVAddr, pszFilename, ui32Line));
+#endif
+
+		return PVRSRV_OK;
+	}
+
+	PVRSRV_ERROR OSFreeMem_Debug_Wrapper(IMG_UINT32 ui32Flags,
+										 IMG_UINT32 ui32Size,
+										 IMG_PVOID pvCpuVAddr,
+										 IMG_HANDLE hBlockAlloc,
+										 IMG_CHAR *pszFilename,
+										 IMG_UINT32 ui32Line)
+	{
+		OSMEM_DEBUG_INFO *psInfo;
+
+		/*check dbginfo (arg pointing to user memory)*/
+		OSCheckMemDebug(pvCpuVAddr, ui32Size, pszFilename, ui32Line);
+
+		/*mark memory as freed*/
+		OSMemSet(pvCpuVAddr, 0xBF, ui32Size + TEST_BUFFER_PADDING_AFTER);
+
+		/*point to the starting address of the total allocated memory*/
+		psInfo = (OSMEM_DEBUG_INFO *)((IMG_UINT32) pvCpuVAddr - TEST_BUFFER_PADDING_STATUS);
+
+		/*update dbg info struct*/
+		psInfo->uSize = 0;
+		psInfo->uSizeParityCheck = 0;
+		psInfo->eValid = isFree;
+		psInfo->uLineNo = ui32Line;
+		debug_strcpy(psInfo->sFileName, pszFilename);
+
+		return OSFreeMem_Debug_Linux_Memory_Allocations(ui32Flags, ui32Size + TEST_BUFFER_PADDING, psInfo, hBlockAlloc, pszFilename, ui32Line);
+	}
+
+#if defined (__cplusplus)
+
+}
+#endif
+
+#endif /* PVRSRV_DEBUG_OS_MEMORY */
+
+#endif /* MEM_DEBUG_C */