-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
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>
- Loading branch information
Heiko Carstens
authored and
Martin Schwidefsky
committed
Nov 23, 2012
1 parent
f781796
commit b01a37a
Showing
5 changed files
with
182 additions
and
49 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| /* | ||
| * 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 */ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters