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[S390] Inline assembly cleanup.

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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>
This commit is contained in:
Martin Schwidefsky
2006-09-28 16:56:43 +02:00
parent 25d83cbfaa
commit 94c12cc7d1
51 changed files with 1758 additions and 2268 deletions
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23
arch/s390/hypfs/hypfs_diag.c
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@@ -333,22 +333,14 @@ static int diag204(unsigned long subcode, unsigned long size, void *addr)
register unsigned long _subcode asm("0") = subcode;
register unsigned long _size asm("1") = size;
asm volatile (" diag %2,%0,0x204\n"
"0: \n" ".section __ex_table,\"a\"\n"
#ifndef __s390x__
" .align 4\n"
" .long 0b,0b\n"
#else
" .align 8\n"
" .quad 0b,0b\n"
#endif
".previous":"+d" (_subcode), "+d"(_size)
:"d"(addr)
:"memory");
asm volatile(
" diag %2,%0,0x204\n"
"0:\n"
EX_TABLE(0b,0b)
: "+d" (_subcode), "+d" (_size) : "d" (addr) : "memory");
if (_subcode)
return -1;
else
return _size;
return _size;
}
/*
@@ -491,8 +483,7 @@ out:
static void diag224(void *ptr)
{
asm volatile(" diag %0,%1,0x224\n"
: :"d" (0), "d"(ptr) : "memory");
asm volatile("diag %0,%1,0x224" : :"d" (0), "d"(ptr) : "memory");
}
static int diag224_get_name_table(void)