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Current uncorrectable error handling was poor enough that the processor could just loop taking the same trap over and over again. Fix things up so that we at least get a log message and perhaps even some register state. In the process, much consolidation became possible, particularly with the correctable error handler. Prefix assembler and C function names with "spitfire" to indicate that these are for Ultra-I/II/IIi/IIe only. More work is needed to make these routines robust and featureful to the level of the Ultra-III error handlers. Signed-off-by: David S. Miller <davem@davemloft.net>
83 lines
3.1 KiB
C
83 lines
3.1 KiB
C
#ifndef _SPARC64_SFAFSR_H
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#define _SPARC64_SFAFSR_H
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#include <asm/const.h>
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/* Spitfire Asynchronous Fault Status register, ASI=0x4C VA<63:0>=0x0 */
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#define SFAFSR_ME (_AC(1,UL) << SFAFSR_ME_SHIFT)
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#define SFAFSR_ME_SHIFT 32
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#define SFAFSR_PRIV (_AC(1,UL) << SFAFSR_PRIV_SHIFT)
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#define SFAFSR_PRIV_SHIFT 31
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#define SFAFSR_ISAP (_AC(1,UL) << SFAFSR_ISAP_SHIFT)
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#define SFAFSR_ISAP_SHIFT 30
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#define SFAFSR_ETP (_AC(1,UL) << SFAFSR_ETP_SHIFT)
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#define SFAFSR_ETP_SHIFT 29
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#define SFAFSR_IVUE (_AC(1,UL) << SFAFSR_IVUE_SHIFT)
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#define SFAFSR_IVUE_SHIFT 28
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#define SFAFSR_TO (_AC(1,UL) << SFAFSR_TO_SHIFT)
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#define SFAFSR_TO_SHIFT 27
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#define SFAFSR_BERR (_AC(1,UL) << SFAFSR_BERR_SHIFT)
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#define SFAFSR_BERR_SHIFT 26
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#define SFAFSR_LDP (_AC(1,UL) << SFAFSR_LDP_SHIFT)
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#define SFAFSR_LDP_SHIFT 25
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#define SFAFSR_CP (_AC(1,UL) << SFAFSR_CP_SHIFT)
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#define SFAFSR_CP_SHIFT 24
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#define SFAFSR_WP (_AC(1,UL) << SFAFSR_WP_SHIFT)
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#define SFAFSR_WP_SHIFT 23
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#define SFAFSR_EDP (_AC(1,UL) << SFAFSR_EDP_SHIFT)
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#define SFAFSR_EDP_SHIFT 22
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#define SFAFSR_UE (_AC(1,UL) << SFAFSR_UE_SHIFT)
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#define SFAFSR_UE_SHIFT 21
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#define SFAFSR_CE (_AC(1,UL) << SFAFSR_CE_SHIFT)
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#define SFAFSR_CE_SHIFT 20
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#define SFAFSR_ETS (_AC(0xf,UL) << SFAFSR_ETS_SHIFT)
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#define SFAFSR_ETS_SHIFT 16
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#define SFAFSR_PSYND (_AC(0xffff,UL) << SFAFSR_PSYND_SHIFT)
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#define SFAFSR_PSYND_SHIFT 0
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/* UDB Error Register, ASI=0x7f VA<63:0>=0x0(High),0x18(Low) for read
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* ASI=0x77 VA<63:0>=0x0(High),0x18(Low) for write
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*/
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#define UDBE_UE (_AC(1,UL) << 9)
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#define UDBE_CE (_AC(1,UL) << 8)
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#define UDBE_E_SYNDR (_AC(0xff,UL) << 0)
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/* The trap handlers for asynchronous errors encode the AFSR and
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* other pieces of information into a 64-bit argument for C code
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* encoded as follows:
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*
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* -----------------------------------------------
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* | UDB_H | UDB_L | TL>1 | TT | AFSR |
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* -----------------------------------------------
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* 63 54 53 44 42 41 33 32 0
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*
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* The AFAR is passed in unchanged.
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*/
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#define SFSTAT_UDBH_MASK (_AC(0x3ff,UL) << SFSTAT_UDBH_SHIFT)
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#define SFSTAT_UDBH_SHIFT 54
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#define SFSTAT_UDBL_MASK (_AC(0x3ff,UL) << SFSTAT_UDBH_SHIFT)
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#define SFSTAT_UDBL_SHIFT 44
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#define SFSTAT_TL_GT_ONE (_AC(1,UL) << SFSTAT_TL_GT_ONE_SHIFT)
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#define SFSTAT_TL_GT_ONE_SHIFT 42
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#define SFSTAT_TRAP_TYPE (_AC(0x1FF,UL) << SFSTAT_TRAP_TYPE_SHIFT)
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#define SFSTAT_TRAP_TYPE_SHIFT 33
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#define SFSTAT_AFSR_MASK (_AC(0x1ffffffff,UL) << SFSTAT_AFSR_SHIFT)
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#define SFSTAT_AFSR_SHIFT 0
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/* ESTATE Error Enable Register, ASI=0x4b VA<63:0>=0x0 */
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#define ESTATE_ERR_CE 0x1 /* Correctable errors */
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#define ESTATE_ERR_NCE 0x2 /* TO, BERR, LDP, ETP, EDP, WP, UE, IVUE */
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#define ESTATE_ERR_ISAP 0x4 /* System address parity error */
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#define ESTATE_ERR_ALL (ESTATE_ERR_CE | \
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ESTATE_ERR_NCE | \
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ESTATE_ERR_ISAP)
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/* The various trap types that report using the above state. */
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#define TRAP_TYPE_IAE 0x09 /* Instruction Access Error */
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#define TRAP_TYPE_DAE 0x32 /* Data Access Error */
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#define TRAP_TYPE_CEE 0x63 /* Correctable ECC Error */
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#endif /* _SPARC64_SFAFSR_H */
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