| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151 |
- /*
- * arch/s390/kernel/base.S
- *
- * Copyright IBM Corp. 2006,2007
- * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
- * Michael Holzheu <holzheu@de.ibm.com>
- */
- #include <asm/asm-offsets.h>
- #include <asm/ptrace.h>
- #ifdef CONFIG_64BIT
- .globl s390_base_mcck_handler
- s390_base_mcck_handler:
- basr %r13,0
- 0: lg %r15,__LC_PANIC_STACK # load panic stack
- aghi %r15,-STACK_FRAME_OVERHEAD
- larl %r1,s390_base_mcck_handler_fn
- lg %r1,0(%r1)
- ltgr %r1,%r1
- jz 1f
- basr %r14,%r1
- 1: la %r1,4095
- lmg %r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r1)
- lpswe __LC_MCK_OLD_PSW
- .section .bss
- .globl s390_base_mcck_handler_fn
- s390_base_mcck_handler_fn:
- .quad 0
- .previous
- .globl s390_base_ext_handler
- s390_base_ext_handler:
- stmg %r0,%r15,__LC_SAVE_AREA
- basr %r13,0
- 0: aghi %r15,-STACK_FRAME_OVERHEAD
- larl %r1,s390_base_ext_handler_fn
- lg %r1,0(%r1)
- ltgr %r1,%r1
- jz 1f
- basr %r14,%r1
- 1: lmg %r0,%r15,__LC_SAVE_AREA
- ni __LC_EXT_OLD_PSW+1,0xfd # clear wait state bit
- lpswe __LC_EXT_OLD_PSW
- .section .bss
- .globl s390_base_ext_handler_fn
- s390_base_ext_handler_fn:
- .quad 0
- .previous
- .globl s390_base_pgm_handler
- s390_base_pgm_handler:
- stmg %r0,%r15,__LC_SAVE_AREA
- basr %r13,0
- 0: aghi %r15,-STACK_FRAME_OVERHEAD
- larl %r1,s390_base_pgm_handler_fn
- lg %r1,0(%r1)
- ltgr %r1,%r1
- jz 1f
- basr %r14,%r1
- lmg %r0,%r15,__LC_SAVE_AREA
- lpswe __LC_PGM_OLD_PSW
- 1: lpswe disabled_wait_psw-0b(%r13)
- .align 8
- disabled_wait_psw:
- .quad 0x0002000180000000,0x0000000000000000 + s390_base_pgm_handler
- .section .bss
- .globl s390_base_pgm_handler_fn
- s390_base_pgm_handler_fn:
- .quad 0
- .previous
- #else /* CONFIG_64BIT */
- .globl s390_base_mcck_handler
- s390_base_mcck_handler:
- basr %r13,0
- 0: l %r15,__LC_PANIC_STACK # load panic stack
- ahi %r15,-STACK_FRAME_OVERHEAD
- l %r1,2f-0b(%r13)
- l %r1,0(%r1)
- ltr %r1,%r1
- jz 1f
- basr %r14,%r1
- 1: lm %r0,%r15,__LC_GPREGS_SAVE_AREA
- lpsw __LC_MCK_OLD_PSW
- 2: .long s390_base_mcck_handler_fn
- .section .bss
- .globl s390_base_mcck_handler_fn
- s390_base_mcck_handler_fn:
- .long 0
- .previous
- .globl s390_base_ext_handler
- s390_base_ext_handler:
- stm %r0,%r15,__LC_SAVE_AREA
- basr %r13,0
- 0: ahi %r15,-STACK_FRAME_OVERHEAD
- l %r1,2f-0b(%r13)
- l %r1,0(%r1)
- ltr %r1,%r1
- jz 1f
- basr %r14,%r1
- 1: lm %r0,%r15,__LC_SAVE_AREA
- ni __LC_EXT_OLD_PSW+1,0xfd # clear wait state bit
- lpsw __LC_EXT_OLD_PSW
- 2: .long s390_base_ext_handler_fn
- .section .bss
- .globl s390_base_ext_handler_fn
- s390_base_ext_handler_fn:
- .long 0
- .previous
- .globl s390_base_pgm_handler
- s390_base_pgm_handler:
- stm %r0,%r15,__LC_SAVE_AREA
- basr %r13,0
- 0: ahi %r15,-STACK_FRAME_OVERHEAD
- l %r1,2f-0b(%r13)
- l %r1,0(%r1)
- ltr %r1,%r1
- jz 1f
- basr %r14,%r1
- lm %r0,%r15,__LC_SAVE_AREA
- lpsw __LC_PGM_OLD_PSW
- 1: lpsw disabled_wait_psw-0b(%r13)
- 2: .long s390_base_pgm_handler_fn
- disabled_wait_psw:
- .align 8
- .long 0x000a0000,0x00000000 + s390_base_pgm_handler
- .section .bss
- .globl s390_base_pgm_handler_fn
- s390_base_pgm_handler_fn:
- .long 0
- .previous
- #endif /* CONFIG_64BIT */
|
