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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-09-28 16:56:43 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-09-28 16:56:43 +0200 |
| commit | 94c12cc7d196bab34aaa98d38521549fa1e5ef76 (patch) | |
| tree | 8e0cec0ed44445d74a2cb5160303d6b4dfb1bc31 /arch/s390/mm/init.c | |
| parent | 25d83cbfaa44e1b9170c0941c3ef52ca39f54ccc (diff) | |
| download | linux-94c12cc7d196bab34aaa98d38521549fa1e5ef76.tar.gz linux-94c12cc7d196bab34aaa98d38521549fa1e5ef76.tar.bz2 linux-94c12cc7d196bab34aaa98d38521549fa1e5ef76.zip | |
[S390] Inline assembly cleanup.
Major cleanup of all s390 inline assemblies. They now have a common
coding style. Quite a few have been shortened, mainly by using register
asm variables. Use of the EX_TABLE macro helps as well. The atomic ops,
bit ops and locking inlines new use the Q-constraint if a newer gcc
is used. That results in slightly better code.
Thanks to Christian Borntraeger for proof reading the changes.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/init.c')
| -rw-r--r-- | arch/s390/mm/init.c | 41 |
1 files changed, 15 insertions, 26 deletions
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index cfd9b8f7a523..127044e1707c 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -45,26 +45,17 @@ void diag10(unsigned long addr) { if (addr >= 0x7ff00000) return; + asm volatile( #ifdef CONFIG_64BIT - asm volatile ( - " sam31\n" - " diag %0,%0,0x10\n" - "0: sam64\n" - ".section __ex_table,\"a\"\n" - " .align 8\n" - " .quad 0b, 0b\n" - ".previous\n" - : : "a" (addr)); + " sam31\n" + " diag %0,%0,0x10\n" + "0: sam64\n" #else - asm volatile ( - " diag %0,%0,0x10\n" + " diag %0,%0,0x10\n" "0:\n" - ".section __ex_table,\"a\"\n" - " .align 4\n" - " .long 0b, 0b\n" - ".previous\n" - : : "a" (addr)); #endif + EX_TABLE(0b,0b) + : : "a" (addr)); } void show_mem(void) @@ -156,11 +147,10 @@ void __init paging_init(void) S390_lowcore.kernel_asce = pgdir_k; /* enable virtual mapping in kernel mode */ - __asm__ __volatile__(" LCTL 1,1,%0\n" - " LCTL 7,7,%0\n" - " LCTL 13,13,%0\n" - " SSM %1" - : : "m" (pgdir_k), "m" (ssm_mask)); + __ctl_load(pgdir_k, 1, 1); + __ctl_load(pgdir_k, 7, 7); + __ctl_load(pgdir_k, 13, 13); + __raw_local_irq_ssm(ssm_mask); local_flush_tlb(); return; @@ -241,11 +231,10 @@ void __init paging_init(void) S390_lowcore.kernel_asce = pgdir_k; /* enable virtual mapping in kernel mode */ - __asm__ __volatile__("lctlg 1,1,%0\n\t" - "lctlg 7,7,%0\n\t" - "lctlg 13,13,%0\n\t" - "ssm %1" - : :"m" (pgdir_k), "m" (ssm_mask)); + __ctl_load(pgdir_k, 1, 1); + __ctl_load(pgdir_k, 7, 7); + __ctl_load(pgdir_k, 13, 13); + __raw_local_irq_ssm(ssm_mask); local_flush_tlb(); |