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linux_dsm_epyc7002/arch/s390/kernel/pgm_check.S

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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>
2012-10-18 23:10:06 +07:00
/*
* Program check table.
*
* Copyright IBM Corp. 2012
*/
#include <linux/linkage.h>
#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
s390: remove 31 bit support Remove the 31 bit support in order to reduce maintenance cost and effectively remove dead code. Since a couple of years there is no distribution left that comes with a 31 bit kernel. The 31 bit kernel also has been broken since more than a year before anybody noticed. In addition I added a removal warning to the kernel shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning message") which let everybody know about the plan to remove 31 bit code. We didn't get any response. Given that the last 31 bit only machine was introduced in 1999 let's remove the code. Anybody with 31 bit user space code can still use the compat mode. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-12 19:08:27 +07:00
* line defines the function to be called corresponding to the program check
* interruption code.
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>
2012-10-18 23:10:06 +07:00
*/
.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 */
s390: remove 31 bit support Remove the 31 bit support in order to reduce maintenance cost and effectively remove dead code. Since a couple of years there is no distribution left that comes with a 31 bit kernel. The 31 bit kernel also has been broken since more than a year before anybody noticed. In addition I added a removal warning to the kernel shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning message") which let everybody know about the plan to remove 31 bit code. We didn't get any response. Given that the last 31 bit only machine was introduced in 1999 let's remove the code. Anybody with 31 bit user space code can still use the compat mode. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-12 19:08:27 +07:00
PGM_CHECK(transaction_exception) /* 18 */
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>
2012-10-18 23:10:06 +07:00
PGM_CHECK_DEFAULT /* 19 */
PGM_CHECK_DEFAULT /* 1a */
s390: remove 31 bit support Remove the 31 bit support in order to reduce maintenance cost and effectively remove dead code. Since a couple of years there is no distribution left that comes with a 31 bit kernel. The 31 bit kernel also has been broken since more than a year before anybody noticed. In addition I added a removal warning to the kernel shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning message") which let everybody know about the plan to remove 31 bit code. We didn't get any response. Given that the last 31 bit only machine was introduced in 1999 let's remove the code. Anybody with 31 bit user space code can still use the compat mode. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-12 19:08:27 +07:00
PGM_CHECK(vector_exception) /* 1b */
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>
2012-10-18 23:10:06 +07:00
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 */
s390: remove 31 bit support Remove the 31 bit support in order to reduce maintenance cost and effectively remove dead code. Since a couple of years there is no distribution left that comes with a 31 bit kernel. The 31 bit kernel also has been broken since more than a year before anybody noticed. In addition I added a removal warning to the kernel shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning message") which let everybody know about the plan to remove 31 bit code. We didn't get any response. Given that the last 31 bit only machine was introduced in 1999 let's remove the code. Anybody with 31 bit user space code can still use the compat mode. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-12 19:08:27 +07:00
PGM_CHECK(do_dat_exception) /* 38 */
PGM_CHECK(do_dat_exception) /* 39 */
PGM_CHECK(do_dat_exception) /* 3a */
PGM_CHECK(do_dat_exception) /* 3b */
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>
2012-10-18 23:10:06 +07:00
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 */
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