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Lines 63-69
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| 63 |
*/ |
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*/ |
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#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \ |
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#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \ |
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do { \ |
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do { \ |
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int dummy; \ |
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asm("1: movl (%1),%%eax;" \ |
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asm("1: movl (%1),%%eax;" \ |
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"movl %%eax,%%edx;" \ |
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"movl %%eax,%%edx;" \ |
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"andl %2,%%edx;" \ |
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"andl %2,%%edx;" \ |
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Lines 73-91
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"jnz 1b;" \ |
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"jnz 1b;" \ |
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"cmpb $0x3,%%dl;" \ |
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"cmpb $0x3,%%dl;" \ |
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"sbbl %%eax,%%eax" \ |
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"sbbl %%eax,%%eax" \ |
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:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~1L):"dx"); \ |
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:"=a"(Acq):"r"(GLptr),"i"(~1L):"dx"); \ |
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} while(0) |
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} while(0) |
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#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \ |
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#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \ |
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do { \ |
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do { \ |
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int dummy; \ |
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asm("1: movl (%1),%%eax;" \ |
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asm("1: movl (%1),%%eax;" \ |
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"movl %%eax,%%edx;" \ |
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"movl %%eax,%%edx;" \ |
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"andl %2,%%edx;" \ |
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"andl %2,%%edx;" \ |
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"lock; cmpxchgl %%edx,(%1);" \ |
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"lock; cmpxchgl %%edx,(%1);" \ |
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"jnz 1b;" \ |
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"jnz 1b;" \ |
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"andl $0x1,%%eax" \ |
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"andl $0x1,%%eax" \ |
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:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~3L):"dx"); \ |
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:"=a"(Acq):"r"(GLptr),"i"(~3L):"dx"); \ |
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} while(0) |
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} while(0) |
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