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Bah, revert the previous commit for the time being due to inadequate testing

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on my part.  The output asm looks correct with the previous commit in place
and it works on amd64, but on my laptop I got a spew of AE_BAD_PARAMETER
errors trying to unlock the acpi global lock.
This commit is contained in:
John Baldwin 2003-06-03 18:44:31 +00:00
parent 7fed69ee80
commit 8375d3a4bc
1 changed files with 8 additions and 6 deletions
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14
sys/i386/include/acpica_machdep.h
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@ -72,27 +72,29 @@
*/
#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
do { \
asm("1: movl %1,%%eax;" \
int dummy; \
asm("1: movl (%1),%%eax;" \
"movl %%eax,%%edx;" \
"andl %2,%%edx;" \
"btsl $0x1,%%edx;" \
"adcl $0x0,%%edx;" \
"lock; cmpxchgl %%edx,%1;" \
"lock; cmpxchgl %%edx,(%1);" \
"jnz 1b;" \
"cmpb $0x3,%%dl;" \
"sbbl %%eax,%%eax" \
: "=a" (Acq), "+m" (GLptr) : "i" (~1L) : "edx"); \
:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~1L):"dx"); \
} while(0)
#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
do { \
asm("1: movl %1,%%eax;" \
int dummy; \
asm("1: movl (%1),%%eax;" \
"movl %%eax,%%edx;" \
"andl %2,%%edx;" \
"lock; cmpxchgl %%edx,%1;" \
"lock; cmpxchgl %%edx,(%1);" \
"jnz 1b;" \
"andl $0x1,%%eax" \
: "=a" (Acq), "+m" (GLptr) : "i" (~3L) : "edx"); \
:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~3L):"dx"); \
} while(0)