| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _SPARC64_ESTATE_H |
| #define _SPARC64_ESTATE_H |
| |
| /* UltraSPARC-III E-cache Error Enable */ |
| #define ESTATE_ERROR_FMT 0x0000000000040000 /* Force MTAG ECC */ |
| #define ESTATE_ERROR_FMESS 0x000000000003c000 /* Forced MTAG ECC val */ |
| #define ESTATE_ERROR_FMD 0x0000000000002000 /* Force DATA ECC */ |
| #define ESTATE_ERROR_FDECC 0x0000000000001ff0 /* Forced DATA ECC val */ |
| #define ESTATE_ERROR_UCEEN 0x0000000000000008 /* See below */ |
| #define ESTATE_ERROR_NCEEN 0x0000000000000002 /* See below */ |
| #define ESTATE_ERROR_CEEN 0x0000000000000001 /* See below */ |
| |
| /* UCEEN enables the fast_ECC_error trap for: 1) software correctable E-cache |
| * errors 2) uncorrectable E-cache errors. Such events only occur on reads |
| * of the E-cache by the local processor for: 1) data loads 2) instruction |
| * fetches 3) atomic operations. Such events _cannot_ occur for: 1) merge |
| * 2) writeback 2) copyout. The AFSR bits associated with these traps are |
| * UCC and UCU. |
| */ |
| |
| /* NCEEN enables instruction_access_error, data_access_error, and ECC_error traps |
| * for uncorrectable ECC errors and system errors. |
| * |
| * Uncorrectable system bus data error or MTAG ECC error, system bus TimeOUT, |
| * or system bus BusERR: |
| * 1) As the result of an instruction fetch, will generate instruction_access_error |
| * 2) As the result of a load etc. will generate data_access_error. |
| * 3) As the result of store merge completion, writeback, or copyout will |
| * generate a disrupting ECC_error trap. |
| * 4) As the result of such errors on instruction vector fetch can generate any |
| * of the 3 trap types. |
| * |
| * The AFSR bits associated with these traps are EMU, EDU, WDU, CPU, IVU, UE, |
| * BERR, and TO. |
| */ |
| |
| /* CEEN enables the ECC_error trap for hardware corrected ECC errors. System bus |
| * reads resulting in a hardware corrected data or MTAG ECC error will generate an |
| * ECC_error disrupting trap with this bit enabled. |
| * |
| * This same trap will also be generated when a hardware corrected ECC error results |
| * during store merge, writeback, and copyout operations. |
| */ |
| |
| /* In general, if the trap enable bits above are disabled the AFSR bits will still |
| * log the events even though the trap will not be generated by the processor. |
| */ |
| |
| #endif /* _SPARC64_ESTATE_H */ |
