diff options
Diffstat (limited to 'i386/i386at/model_dep.h')
| -rw-r--r-- | i386/i386at/model_dep.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/i386/i386at/model_dep.h b/i386/i386at/model_dep.h index aa24032..a27d9b3 100644 --- a/i386/i386at/model_dep.h +++ b/i386/i386at/model_dep.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2013 Free Software Foundation. + * Copyright (c) 2013-2015 Free Software Foundation. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -25,6 +25,16 @@ extern int timemmap(dev_t dev, vm_offset_t off, vm_prot_t prot); void inittodr(void); -boolean_t init_alloc_aligned(vm_size_t size, vm_offset_t *addrp); +/* + * Interrupt stack. + * + * We allocate the interrupt stacks from the kernels stack cache. As + * the stacks are naturally aligned, it is easy to find the base + * address given a stack pointer. + */ +extern vm_offset_t int_stack_top, int_stack_base; + +/* Check whether P points to the interrupt stack. */ +#define ON_INT_STACK(P) (((P) & ~(KERNEL_STACK_SIZE-1)) == int_stack_base) #endif /* _MODEL_DEP_H_ */ |