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linux-next/arch/s390/kernel/pgm_check.S
Heiko Carstens b01a37a749 s390/traps: preinitialize program check table
Preinitialize the program check table, so we can put it into the
read-only data section.
Also use only four byte entries for the table, since each program
check handler resides within the first 2GB. Therefore this reduces
the size of the table by 50% on 64 bit builds.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-11-23 11:14:25 +01:00

153 lines
4.5 KiB
ArmAsm

/*
* Program check table.
*
* Copyright IBM Corp. 2012
*/
#include <linux/linkage.h>
#ifdef CONFIG_32BIT
#define PGM_CHECK_64BIT(handler) .long default_trap_handler
#else
#define PGM_CHECK_64BIT(handler) .long handler
#endif
#define PGM_CHECK(handler) .long handler
#define PGM_CHECK_DEFAULT PGM_CHECK(default_trap_handler)
/*
* The program check table contains exactly 128 (0x00-0x7f) entries. Each
* line defines the 31 and/or 64 bit function to be called corresponding
* to the program check interruption code.
*/
.section .rodata, "a"
ENTRY(pgm_check_table)
PGM_CHECK_DEFAULT /* 00 */
PGM_CHECK(illegal_op) /* 01 */
PGM_CHECK(privileged_op) /* 02 */
PGM_CHECK(execute_exception) /* 03 */
PGM_CHECK(do_protection_exception) /* 04 */
PGM_CHECK(addressing_exception) /* 05 */
PGM_CHECK(specification_exception) /* 06 */
PGM_CHECK(data_exception) /* 07 */
PGM_CHECK(overflow_exception) /* 08 */
PGM_CHECK(divide_exception) /* 09 */
PGM_CHECK(overflow_exception) /* 0a */
PGM_CHECK(divide_exception) /* 0b */
PGM_CHECK(hfp_overflow_exception) /* 0c */
PGM_CHECK(hfp_underflow_exception) /* 0d */
PGM_CHECK(hfp_significance_exception) /* 0e */
PGM_CHECK(hfp_divide_exception) /* 0f */
PGM_CHECK(do_dat_exception) /* 10 */
PGM_CHECK(do_dat_exception) /* 11 */
PGM_CHECK(translation_exception) /* 12 */
PGM_CHECK(special_op_exception) /* 13 */
PGM_CHECK_DEFAULT /* 14 */
PGM_CHECK(operand_exception) /* 15 */
PGM_CHECK_DEFAULT /* 16 */
PGM_CHECK_DEFAULT /* 17 */
PGM_CHECK_64BIT(transaction_exception) /* 18 */
PGM_CHECK_DEFAULT /* 19 */
PGM_CHECK_DEFAULT /* 1a */
PGM_CHECK_DEFAULT /* 1b */
PGM_CHECK(space_switch_exception) /* 1c */
PGM_CHECK(hfp_sqrt_exception) /* 1d */
PGM_CHECK_DEFAULT /* 1e */
PGM_CHECK_DEFAULT /* 1f */
PGM_CHECK_DEFAULT /* 20 */
PGM_CHECK_DEFAULT /* 21 */
PGM_CHECK_DEFAULT /* 22 */
PGM_CHECK_DEFAULT /* 23 */
PGM_CHECK_DEFAULT /* 24 */
PGM_CHECK_DEFAULT /* 25 */
PGM_CHECK_DEFAULT /* 26 */
PGM_CHECK_DEFAULT /* 27 */
PGM_CHECK_DEFAULT /* 28 */
PGM_CHECK_DEFAULT /* 29 */
PGM_CHECK_DEFAULT /* 2a */
PGM_CHECK_DEFAULT /* 2b */
PGM_CHECK_DEFAULT /* 2c */
PGM_CHECK_DEFAULT /* 2d */
PGM_CHECK_DEFAULT /* 2e */
PGM_CHECK_DEFAULT /* 2f */
PGM_CHECK_DEFAULT /* 30 */
PGM_CHECK_DEFAULT /* 31 */
PGM_CHECK_DEFAULT /* 32 */
PGM_CHECK_DEFAULT /* 33 */
PGM_CHECK_DEFAULT /* 34 */
PGM_CHECK_DEFAULT /* 35 */
PGM_CHECK_DEFAULT /* 36 */
PGM_CHECK_DEFAULT /* 37 */
PGM_CHECK_64BIT(do_asce_exception) /* 38 */
PGM_CHECK_64BIT(do_dat_exception) /* 39 */
PGM_CHECK_64BIT(do_dat_exception) /* 3a */
PGM_CHECK_64BIT(do_dat_exception) /* 3b */
PGM_CHECK_DEFAULT /* 3c */
PGM_CHECK_DEFAULT /* 3d */
PGM_CHECK_DEFAULT /* 3e */
PGM_CHECK_DEFAULT /* 3f */
PGM_CHECK_DEFAULT /* 40 */
PGM_CHECK_DEFAULT /* 41 */
PGM_CHECK_DEFAULT /* 42 */
PGM_CHECK_DEFAULT /* 43 */
PGM_CHECK_DEFAULT /* 44 */
PGM_CHECK_DEFAULT /* 45 */
PGM_CHECK_DEFAULT /* 46 */
PGM_CHECK_DEFAULT /* 47 */
PGM_CHECK_DEFAULT /* 48 */
PGM_CHECK_DEFAULT /* 49 */
PGM_CHECK_DEFAULT /* 4a */
PGM_CHECK_DEFAULT /* 4b */
PGM_CHECK_DEFAULT /* 4c */
PGM_CHECK_DEFAULT /* 4d */
PGM_CHECK_DEFAULT /* 4e */
PGM_CHECK_DEFAULT /* 4f */
PGM_CHECK_DEFAULT /* 50 */
PGM_CHECK_DEFAULT /* 51 */
PGM_CHECK_DEFAULT /* 52 */
PGM_CHECK_DEFAULT /* 53 */
PGM_CHECK_DEFAULT /* 54 */
PGM_CHECK_DEFAULT /* 55 */
PGM_CHECK_DEFAULT /* 56 */
PGM_CHECK_DEFAULT /* 57 */
PGM_CHECK_DEFAULT /* 58 */
PGM_CHECK_DEFAULT /* 59 */
PGM_CHECK_DEFAULT /* 5a */
PGM_CHECK_DEFAULT /* 5b */
PGM_CHECK_DEFAULT /* 5c */
PGM_CHECK_DEFAULT /* 5d */
PGM_CHECK_DEFAULT /* 5e */
PGM_CHECK_DEFAULT /* 5f */
PGM_CHECK_DEFAULT /* 60 */
PGM_CHECK_DEFAULT /* 61 */
PGM_CHECK_DEFAULT /* 62 */
PGM_CHECK_DEFAULT /* 63 */
PGM_CHECK_DEFAULT /* 64 */
PGM_CHECK_DEFAULT /* 65 */
PGM_CHECK_DEFAULT /* 66 */
PGM_CHECK_DEFAULT /* 67 */
PGM_CHECK_DEFAULT /* 68 */
PGM_CHECK_DEFAULT /* 69 */
PGM_CHECK_DEFAULT /* 6a */
PGM_CHECK_DEFAULT /* 6b */
PGM_CHECK_DEFAULT /* 6c */
PGM_CHECK_DEFAULT /* 6d */
PGM_CHECK_DEFAULT /* 6e */
PGM_CHECK_DEFAULT /* 6f */
PGM_CHECK_DEFAULT /* 70 */
PGM_CHECK_DEFAULT /* 71 */
PGM_CHECK_DEFAULT /* 72 */
PGM_CHECK_DEFAULT /* 73 */
PGM_CHECK_DEFAULT /* 74 */
PGM_CHECK_DEFAULT /* 75 */
PGM_CHECK_DEFAULT /* 76 */
PGM_CHECK_DEFAULT /* 77 */
PGM_CHECK_DEFAULT /* 78 */
PGM_CHECK_DEFAULT /* 79 */
PGM_CHECK_DEFAULT /* 7a */
PGM_CHECK_DEFAULT /* 7b */
PGM_CHECK_DEFAULT /* 7c */
PGM_CHECK_DEFAULT /* 7d */
PGM_CHECK_DEFAULT /* 7e */
PGM_CHECK_DEFAULT /* 7f */