chafsr.h
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- /* $Id: chafsr.h,v 1.1 2001/03/28 10:56:34 davem Exp $ */
- #ifndef _SPARC64_CHAFSR_H
- #define _SPARC64_CHAFSR_H
- /* Cheetah Asynchronous Fault Status register, ASI=0x4C VA<63:0>=0x0 */
- /* All bits of this register except M_SYNDROME and E_SYNDROME are
- * read, write 1 to clear. M_SYNDROME and E_SYNDROME are read-only.
- */
- /* Multiple errors of the same type have occurred. This bit is set when
- * an uncorrectable error or a SW correctable error occurs and the status
- * bit to report that error is already set. When multiple errors of
- * different types are indicated by setting multiple status bits.
- *
- * This bit is not set if multiple HW corrected errors with the same
- * status bit occur, only uncorrectable and SW correctable ones have
- * this behavior.
- *
- * This bit is not set when multiple ECC errors happen within a single
- * 64-byte system bus transaction. Only the first ECC error in a 16-byte
- * subunit will be logged. All errors in subsequent 16-byte subunits
- * from the same 64-byte transaction are ignored.
- */
- #define CHAFSR_ME 0x0020000000000000
- /* Privileged state error has occurred. This is a capture of PSTATE.PRIV
- * at the time the error is detected.
- */
- #define CHAFSR_PRIV 0x0010000000000000
- /* The following bits 51 (CHAFSR_PERR) to 33 (CHAFSR_CE) are sticky error
- * bits and record the most recently detected errors. Bits accumulate
- * errors that have been detected since the last write to clear the bit.
- */
- /* System interface protocol error. The processor asserts its' ERROR
- * pin when this event occurs and it also logs a specific cause code
- * into a JTAG scannable flop.
- */
- #define CHAFSR_PERR 0x0008000000000000
- /* Internal processor error. The processor asserts its' ERROR
- * pin when this event occurs and it also logs a specific cause code
- * into a JTAG scannable flop.
- */
- #define CHAFSR_IERR 0x0004000000000000
- /* System request parity error on incoming address */
- #define CHAFSR_ISAP 0x0002000000000000
- /* HW Corrected system bus MTAG ECC error */
- #define CHAFSR_EMC 0x0001000000000000
- /* Uncorrectable system bus MTAG ECC error */
- #define CHAFSR_EMU 0x0000800000000000
- /* HW Corrected system bus data ECC error for read of interrupt vector */
- #define CHAFSR_IVC 0x0000400000000000
- /* Uncorrectable system bus data ECC error for read of interrupt vector */
- #define CHAFSR_IVU 0x0000200000000000
- /* Unmappeed error from system bus */
- #define CHAFSR_TO 0x0000100000000000
- /* Bus error response from system bus */
- #define CHAFSR_BERR 0x0000080000000000
- /* SW Correctable E-cache ECC error for instruction fetch or data access
- * other than block load.
- */
- #define CHAFSR_UCC 0x0000040000000000
- /* Uncorrectable E-cache ECC error for instruction fetch or data access
- * other than block load.
- */
- #define CHAFSR_UCU 0x0000020000000000
- /* Copyout HW Corrected ECC error */
- #define CHAFSR_CPC 0x0000010000000000
- /* Copyout Uncorrectable ECC error */
- #define CHAFSR_CPU 0x0000008000000000
- /* HW Corrected ECC error from E-cache for writeback */
- #define CHAFSR_WDC 0x0000004000000000
- /* Uncorrectable ECC error from E-cache for writeback */
- #define CHAFSR_WDU 0x0000002000000000
- /* HW Corrected ECC error from E-cache for store merge or block load */
- #define CHAFSR_EDC 0x0000001000000000
- /* Uncorrectable ECC error from E-cache for store merge or block load */
- #define CHAFSR_EDU 0x0000000800000000
- /* Uncorrectable system bus data ECC error for read of memory or I/O */
- #define CHAFSR_UE 0x0000000400000000
- /* HW Corrected system bus data ECC error for read of memory or I/O */
- #define CHAFSR_CE 0x0000000200000000
- #define CHAFSR_ERRORS (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC |
- CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO |
- CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC |
- CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC |
- CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE)
- /* System bus MTAG ECC syndrome. This field captures the status of the
- * first occurrence of the highest-priority error according to the M_SYND
- * overwrite policy. After the AFSR sticky bit, corresponding to the error
- * for which the M_SYND is reported, is cleared, the contents of the M_SYND
- * field will be unchanged by will be unfrozen for further error capture.
- */
- #define CHAFSR_M_SYNDROME 0x00000000000f0000
- #define CHAFSR_M_SYNDROME_SHIFT 16
- /* System bus or E-cache data ECC syndrome. This field captures the status
- * of the first occurrence of the highest-priority error according to the
- * E_SYND overwrite policy. After the AFSR sticky bit, corresponding to the
- * error for which the E_SYND is reported, is cleare, the contents of the E_SYND
- * field will be unchanged but will be unfrozen for further error capture.
- */
- #define CHAFSR_E_SYNDROME 0x00000000000001ff
- #define CHAFSR_E_SYNDROME_SHIFT 0
- /* The AFSR must be explicitly cleared by software, it is not cleared automatically
- * by a read. Writes to bits <51:33> with bits set will clear the corresponding
- * bits in the AFSR. Bits assosciated with disrupting traps must be cleared before
- * interrupts are re-enabled to prevent multiple traps for the same error. I.e.
- * PSTATE.IE and AFSR bits control delivery of disrupting traps.
- *
- * Since there is only one AFAR, when multiple events have been logged by the
- * bits in the AFSR, at most one of these events will have its status captured
- * in the AFAR. The highest priority of those event bits will get AFAR logging.
- * The AFAR will be unlocked and available to capture the address of another event
- * as soon as the one bit in AFSR that corresponds to the event logged in AFAR is
- * cleared. For example, if AFSR.CE is detected, then AFSR.UE (which overwrites
- * the AFAR), and AFSR.UE is cleared by not AFSR.CE, then the AFAR will be unlocked
- * and ready for another event, even though AFSR.CE is still set. The same rules
- * also apply to the M_SYNDROME and E_SYNDROME fields of the AFSR.
- */
- /* Software bit set by linux trap handlers to indicate that the trap was
- * signalled at %tl >= 1.
- */
- #define CHAFSR_TL1 0x8000000000000000
- #endif /* _SPARC64_CHAFSR_H */