From b01a37a749916ef1765e4d65dee8b43fde8407b8 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 18 Oct 2012 18:10:06 +0200 Subject: 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 Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/pgm_check.S | 152 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 152 insertions(+) create mode 100644 arch/s390/kernel/pgm_check.S (limited to 'arch/s390/kernel/pgm_check.S') diff --git a/arch/s390/kernel/pgm_check.S b/arch/s390/kernel/pgm_check.S new file mode 100644 index 000000000000..14bdecb61923 --- /dev/null +++ b/arch/s390/kernel/pgm_check.S @@ -0,0 +1,152 @@ +/* + * Program check table. + * + * Copyright IBM Corp. 2012 + */ + +#include + +#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 */ -- cgit