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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 15:16:45 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 15:16:42 +0100 |
| commit | 0edc8faa769095e98a5a5adc28db982f99f0d663 (patch) | |
| tree | 61828b450ece8375d58ba1279ccb0aaaa74e0c52 /arch/s390/kernel | |
| parent | dab7a7b1538fec48790a321a58180adae79a3f3c (diff) | |
| download | linux-stable-0edc8faa769095e98a5a5adc28db982f99f0d663.tar.gz linux-stable-0edc8faa769095e98a5a5adc28db982f99f0d663.tar.bz2 linux-stable-0edc8faa769095e98a5a5adc28db982f99f0d663.zip | |
[S390] lowcore cleanup
Remove the save_area_64 field from the 0xe00 - 0xf00 area in the lowcore.
Use a free slot in the save_area array instead.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/asm-offsets.c | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/entry.S | 4 | ||||
| -rw-r--r-- | arch/s390/kernel/entry64.S | 4 | ||||
| -rw-r--r-- | arch/s390/kernel/reipl64.S | 4 |
4 files changed, 6 insertions, 7 deletions
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c index 2b45591e1582..1140035b1cd8 100644 --- a/arch/s390/kernel/asm-offsets.c +++ b/arch/s390/kernel/asm-offsets.c @@ -141,7 +141,6 @@ int main(void) DEFINE(__LC_FPREGS_SAVE_AREA, offsetof(struct _lowcore, floating_pt_save_area)); DEFINE(__LC_GPREGS_SAVE_AREA, offsetof(struct _lowcore, gpregs_save_area)); DEFINE(__LC_CREGS_SAVE_AREA, offsetof(struct _lowcore, cregs_save_area)); - DEFINE(__LC_SAVE_AREA_64, offsetof(struct _lowcore, save_area_64)); #ifdef CONFIG_32BIT DEFINE(SAVE_AREA_BASE, offsetof(struct _lowcore, extended_save_area_addr)); #else /* CONFIG_32BIT */ diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 02ec8fe7d03f..195387ab7c98 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -853,13 +853,13 @@ restart_go: # PSW restart interrupt handler # ENTRY(psw_restart_int_handler) - st %r15,__LC_SAVE_AREA_64(%r0) # save r15 + st %r15,__LC_SAVE_AREA+48(%r0) # save r15 basr %r15,0 0: l %r15,.Lrestart_stack-0b(%r15) # load restart stack l %r15,0(%r15) ahi %r15,-SP_SIZE # make room for pt_regs stm %r0,%r14,SP_R0(%r15) # store gprs %r0-%r14 to stack - mvc SP_R15(4,%r15),__LC_SAVE_AREA_64(%r0)# store saved %r15 to stack + mvc SP_R15(4,%r15),__LC_SAVE_AREA+48(%r0)# store saved %r15 to stack mvc SP_PSW(8,%r15),__LC_RST_OLD_PSW(%r0) # store restart old psw xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # set backchain to 0 basr %r14,0 diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index 713da0760538..3257f7f55551 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -869,12 +869,12 @@ restart_go: # PSW restart interrupt handler # ENTRY(psw_restart_int_handler) - stg %r15,__LC_SAVE_AREA_64(%r0) # save r15 + stg %r15,__LC_SAVE_AREA+120(%r0) # save r15 larl %r15,restart_stack # load restart stack lg %r15,0(%r15) aghi %r15,-SP_SIZE # make room for pt_regs stmg %r0,%r14,SP_R0(%r15) # store gprs %r0-%r14 to stack - mvc SP_R15(8,%r15),__LC_SAVE_AREA_64(%r0)# store saved %r15 to stack + mvc SP_R15(8,%r15),__LC_SAVE_AREA+120(%r0)# store saved %r15 to stack mvc SP_PSW(16,%r15),__LC_RST_OLD_PSW(%r0)# store restart old psw xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) # set backchain to 0 brasl %r14,do_restart diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S index a0f5b686a3cd..732a793ec53a 100644 --- a/arch/s390/kernel/reipl64.S +++ b/arch/s390/kernel/reipl64.S @@ -17,11 +17,11 @@ # ENTRY(store_status) /* Save register one and load save area base */ - stg %r1,__LC_SAVE_AREA_64(%r0) + stg %r1,__LC_SAVE_AREA+120(%r0) lghi %r1,SAVE_AREA_BASE /* General purpose registers */ stmg %r0,%r15,__LC_GPREGS_SAVE_AREA-SAVE_AREA_BASE(%r1) - lg %r2,__LC_SAVE_AREA_64(%r0) + lg %r2,__LC_SAVE_AREA+120(%r0) stg %r2,__LC_GPREGS_SAVE_AREA-SAVE_AREA_BASE+8(%r1) /* Control registers */ stctg %c0,%c15,__LC_CREGS_SAVE_AREA-SAVE_AREA_BASE(%r1) |