1 /* SPDX-License-Identifier: GPL-2.0 */ 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 */ 51
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