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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* $Id: estate.h,v 1.1 2001/03/28 10:56:34 davem Exp $ */
2#ifndef _SPARC64_ESTATE_H
3#define _SPARC64_ESTATE_H
4
5/* UltraSPARC-III E-cache Error Enable */
6#define ESTATE_ERROR_FMT 0x0000000000040000 /* Force MTAG ECC */
7#define ESTATE_ERROR_FMESS 0x000000000003c000 /* Forced MTAG ECC val */
8#define ESTATE_ERROR_FMD 0x0000000000002000 /* Force DATA ECC */
9#define ESTATE_ERROR_FDECC 0x0000000000001ff0 /* Forced DATA ECC val */
10#define ESTATE_ERROR_UCEEN 0x0000000000000008 /* See below */
11#define ESTATE_ERROR_NCEEN 0x0000000000000002 /* See below */
12#define ESTATE_ERROR_CEEN 0x0000000000000001 /* See below */
13
14/* UCEEN enables the fast_ECC_error trap for: 1) software correctable E-cache
15 * errors 2) uncorrectable E-cache errors. Such events only occur on reads
16 * of the E-cache by the local processor for: 1) data loads 2) instruction
17 * fetches 3) atomic operations. Such events _cannot_ occur for: 1) merge
18 * 2) writeback 2) copyout. The AFSR bits associated with these traps are
19 * UCC and UCU.
20 */
21
22/* NCEEN enables instruction_access_error, data_access_error, and ECC_error traps
23 * for uncorrectable ECC errors and system errors.
24 *
25 * Uncorrectable system bus data error or MTAG ECC error, system bus TimeOUT,
26 * or system bus BusERR:
27 * 1) As the result of an instruction fetch, will generate instruction_access_error
28 * 2) As the result of a load etc. will generate data_access_error.
29 * 3) As the result of store merge completion, writeback, or copyout will
30 * generate a disrupting ECC_error trap.
31 * 4) As the result of such errors on instruction vector fetch can generate any
32 * of the 3 trap types.
33 *
34 * The AFSR bits associated with these traps are EMU, EDU, WDU, CPU, IVU, UE,
35 * BERR, and TO.
36 */
37
38/* CEEN enables the ECC_error trap for hardware corrected ECC errors. System bus
39 * reads resulting in a hardware corrected data or MTAG ECC error will generate an
40 * ECC_error disrupting trap with this bit enabled.
41 *
42 * This same trap will also be generated when a hardware corrected ECC error results
43 * during store merge, writeback, and copyout operations.
44 */
45
46/* In general, if the trap enable bits above are disabled the AFSR bits will still
47 * log the events even though the trap will not be generated by the processor.
48 */
49
50#endif /* _SPARC64_ESTATE_H */