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-
- /* @(#)memerr.h 1.1 86/09/27 SMI */
-
- /*
- * Copyright (c) 1986 by Sun Microsystems, Inc.
- */
-
- /*
- * All Sun-3 implementations have either memory parity error detection
- * or memory equipped with error correction (ECC). The memory error
- * register consists of a control and an address register. If an error
- * occurs, the control register stores information relevant to the error.
- * The memory address error register stores the virtual address, the
- * context number, and the CPU/DVMA bit of the memory cycle at which
- * the error was detected. Errors are reported via a non-maskable
- * level 7 interrupt. In case of multiple (stacked) memory errors,
- * the information relation to the first error is latched in the
- * memory error register. The interrupt is held pending and the error
- * information in the memory error register is latched (frozen) until
- * it is cleared (unfrozen) by a write to bits <31..24> of the memory
- * error address register.
- */
-
- #define OBIO_MEMREG 0x80000 /* address of memreg in obio space */
-
- #ifdef LOCORE
- #define MEMREG 0x0FFE4000 /* virtual address we map memreg to be at */
- #else
- struct memreg {
- u_char mr_er; /* memory error control register */
- #define mr_per mr_er /* parity error register */
- #define mr_eer mr_er /* ECC error register */
- u_char mr_undef[3];
- u_int mr_dvma : 1;
- u_int mr_cxt : 3;
- u_int mr_vaddr:28;
- };
- #define MEMREG ((struct memreg *)(0x0FFE4000))
- #endif LOCORE
-
- /*
- * Bits for the memory error register when used as parity error register
- */
- #define PER_INTR 0x80 /* r/o - 1 = parity interrupt pending */
- #define PER_INTENA 0x40 /* r/w - 1 = enable interrupt on parity error */
- #define PER_TEST 0x20 /* r/w - 1 = write inverse parity */
- #define PER_CHECK 0x10 /* r/w - 1 = enable parity checking */
- #define PER_ERR24 0x08 /* r/o - 1 = parity error <24..31> */
- #define PER_ERR16 0x04 /* r/o - 1 = parity error <16..23> */
- #define PER_ERR08 0x02 /* r/o - 1 = parity error <8..15> */
- #define PER_ERR00 0x01 /* r/o - 1 = parity error <0..7> */
- #define PER_ERR 0x0F /* r/o - mask for some parity error occuring */
- #define PARERR_BITS "\20\10INTR\7INTENA\6TEST\5CHECK\4ERR24\3ERR16\2ERR08\1ERR00"
-
- /*
- * Bits for the memory error register when used as ECC error register
- */
- #define EER_INTR 0x80 /* r/o - ECC memory interrupt pending */
- #define EER_INTENA 0x40 /* r/w - enable interrupts on errors */
- #define EER_CE_ENA 0x10 /* r/w - enable CE recording */
- #define EER_TIMEOUT 0x08 /* r/o - Sirius bus time out */
- #define EER_WBACKERR 0x04 /* r/o - write back error */
- #define EER_UE 0x02 /* r/o - UE, uncorrectable error */
- #define EER_CE 0x01 /* r/o - CE, correctable (single bit) error */
- #define EER_ERR 0x0F /* r/o - mask for some ECC error occuring */
- #define ECCERR_BITS "\20\10INTR\7INTENA\5CE_ENA\4TIMEOUT\3WBACKERR\2UE\1CE"
- #define ER_INTR 0x80 /* mask for ECC/parity interrupt pending */
-