コード例 #1
0
ファイル: xbram_selftest.c プロジェクト: perkypavan/Research
/**
* Inject errors using the hardware fault injection functionality, and write
* random data and read it back using the indicated location.
*
* @param	InstancePtr is a pointer to the XBram instance to
*		be worked on.
* @param	The Addr is the indicated memory location to use
* @param	The Index1 is the bit location of the first injected error
* @param	The Index2 is the bit location of the second injected error
* @param	The ActualData is filled in with expected data for checking
* @param	The ActualEcc is filled in with expected ECC for checking
*
* @return 	None
*
* @note		None.
*
******************************************************************************/
static void InjectErrors(XBram * InstancePtr, u32 Addr,
                         int Index1, int Index2,
                         u32 *ActualData, u32 *ActualEcc)
{
    u32 InjectedData = 0;
    u32 InjectedEcc = 0;
    u32 RandomData = PrngData(&PrngResult);

    if (Index1 < 32) {
        InjectedData = 1 << Index1;
    } else {
        InjectedEcc = 1 << (Index1 - 32);
    }

    if (Index2 < 32) {
        InjectedData |= (1 << Index2);
    } else {
        InjectedEcc |= 1 << (Index2 - 32);
    }

    WR(FI_D_0_OFFSET, InjectedData);
    WR(FI_ECC_0_OFFSET, InjectedEcc);

    XBram_Out32(Addr, RandomData);
    (void) XBram_In32(Addr);

    *ActualData = InjectedData ^ RandomData;
    *ActualEcc  = InjectedEcc ^ CalculateEcc(RandomData);
}
コード例 #2
0
ファイル: xbram_selftest.c プロジェクト: 8l/mxp
/**
* Inject errors using the hardware fault injection functionality, and write
* random data and read it back using the indicated location.
*
* @param	InstancePtr is a pointer to the XBram instance to
*		be worked on.
* @param	The Addr is the indicated memory location to use
* @param	The Index1 is the bit location of the first injected error
* @param	The Index2 is the bit location of the second injected error
* @param	The Width is the data byte width
* @param	The ActualData is filled in with expected data for checking
* @param	The ActualEcc is filled in with expected ECC for checking
*
* @return 	None
*
* @note		None.
*
******************************************************************************/
static void InjectErrors(XBram * InstancePtr, u32 Addr,
			 int Index1, int Index2, int Width,
			 u32 *ActualData, u32 *ActualEcc)
{
	u32 InjectedData = 0;
	u32 InjectedEcc = 0;
	u32 RandomData = PrngData(&PrngResult);

	if (Index1 < 32) {
		InjectedData = 1 << Index1;
	} else {
		InjectedEcc = 1 << (Index1 - 32);
	}

	if (Index2 < 32) {
		InjectedData |= (1 << Index2);
	} else {
		InjectedEcc |= 1 << (Index2 - 32);
	}

	WR(FI_D_0_OFFSET, InjectedData);
	WR(FI_ECC_0_OFFSET, InjectedEcc);

	XBram_Out32(Addr, RandomData);
	Xil_DCacheFlushRange(Addr, 4);
	switch (Width) {
		case 1: /* Byte - Write to do Read-Modify-Write */
			XBram_Out8(Addr, PrngData(&PrngResult) & 0xFF);
			break;
		case 2: /* Halfword - Write to do Read-Modify-Write */
			XBram_Out16(Addr, PrngData(&PrngResult) & 0xFFFF);
			break;
		case 4:	/* Word - Read */
			(void) XBram_In32(Addr);
			break;
	}
	*ActualData = InjectedData ^ RandomData;
	*ActualEcc  = InjectedEcc ^ CalculateEcc(RandomData);
}