1 /******************************************************************************
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31 ******************************************************************************/
32 /*****************************************************************************/
35 * @file xil_exception.h
37 * This header file contains ARM Cortex A53 specific exception related APIs.
38 * For exception related functions that can be used across all Xilinx supported
39 * processors, please use xil_exception.h.
42 * MODIFICATION HISTORY:
44 * Ver Who Date Changes
45 * ----- -------- -------- -----------------------------------------------
46 * 5.00 pkp 05/29/14 First release
49 ******************************************************************************/
51 #ifndef XIL_EXCEPTION_H /* prevent circular inclusions */
52 #define XIL_EXCEPTION_H /* by using protection macros */
54 /***************************** Include Files ********************************/
56 #include "xil_types.h"
57 #include "xpseudo_asm.h"
63 /************************** Constant Definitions ****************************/
65 #define XIL_EXCEPTION_FIQ XREG_CPSR_FIQ_ENABLE
66 #define XIL_EXCEPTION_IRQ XREG_CPSR_IRQ_ENABLE
67 #define XIL_EXCEPTION_ALL (XREG_CPSR_FIQ_ENABLE | XREG_CPSR_IRQ_ENABLE)
69 #define XIL_EXCEPTION_ID_FIRST 0U
70 #define XIL_EXCEPTION_ID_SYNC_INT 1U
71 #define XIL_EXCEPTION_ID_IRQ_INT 2U
72 #define XIL_EXCEPTION_ID_FIQ_INT 3U
73 #define XIL_EXCEPTION_ID_SERROR_ABORT_INT 4U
74 #define XIL_EXCEPTION_ID_LAST 5U
77 * XIL_EXCEPTION_ID_INT is defined for all Xilinx processors.
79 #define XIL_EXCEPTION_ID_INT XIL_EXCEPTION_ID_IRQ_INT
81 /**************************** Type Definitions ******************************/
84 * This typedef is the exception handler function.
86 typedef void (*Xil_ExceptionHandler)(void *data);
87 typedef void (*Xil_InterruptHandler)(void *data);
89 /***************** Macros (Inline Functions) Definitions ********************/
91 /****************************************************************************/
95 * @param Mask for exceptions to be enabled.
99 * @note If bit is 0, exception is enabled.
100 * C-Style signature: void Xil_ExceptionEnableMask(Mask)
102 ******************************************************************************/
104 #define Xil_ExceptionEnableMask(Mask) \
105 mtcpsr(mfcpsr() & ~ ((Mask) & XIL_EXCEPTION_ALL))
107 /****************************************************************************/
109 * Enable the IRQ exception.
115 ******************************************************************************/
116 #define Xil_ExceptionEnable() \
117 Xil_ExceptionEnableMask(XIL_EXCEPTION_IRQ)
119 /****************************************************************************/
121 * Disable Exceptions.
123 * @param Mask for exceptions to be enabled.
127 * @note If bit is 1, exception is disabled.
128 * C-Style signature: Xil_ExceptionDisableMask(Mask)
130 ******************************************************************************/
132 #define Xil_ExceptionDisableMask(Mask) \
133 mtcpsr(mfcpsr() | ((Mask) & XIL_EXCEPTION_ALL))
135 /****************************************************************************/
137 * Disable the IRQ exception.
143 ******************************************************************************/
144 #define Xil_ExceptionDisable() \
145 Xil_ExceptionDisableMask(XIL_EXCEPTION_IRQ)
148 /************************** Variable Definitions ****************************/
150 /************************** Function Prototypes *****************************/
152 extern void Xil_ExceptionRegisterHandler(u32 Exception_id,
153 Xil_ExceptionHandler Handler,
156 extern void Xil_ExceptionRemoveHandler(u32 Exception_id);
158 extern void Xil_ExceptionInit(void);
160 void Xil_SyncAbortHandler(void *CallBackRef);
162 void Xil_SErrorAbortHandler(void *CallBackRef);
166 #endif /* __cplusplus */
168 #endif /* XIL_EXCEPTION_H */