1b56fdb33c
- as thre are still KERNEL and IDLE entries, time accounting for kernel and idle time works the same as for any other process - everytime we stop accounting for the currently running process, kernel or idle, we read the TSC counter and increment the p_cycles entry. - the process cycles inherently include some of the kernel cycles as we can stop accounting for the process only after we save its context and we start accounting just before we restore its context - this assumes that the system does not scale the CPU frequency which will be true for ... long time ;-)
35 lines
980 B
C
35 lines
980 B
C
/* General macros and constants used by the kernel. */
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#ifndef CONST_H
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#define CONST_H
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#include <minix/config.h>
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#include <minix/bitmap.h>
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#include "config.h"
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#include "debug.h"
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/* Translate an endpoint number to a process number, return success. */
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#define isokendpt(e,p) isokendpt_d((e),(p),0)
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#define okendpt(e,p) isokendpt_d((e),(p),1)
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/* Constants used in virtual_copy(). Values must be 0 and 1, respectively. */
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#define _SRC_ 0
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#define _DST_ 1
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#define get_sys_bit(map,bit) \
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( MAP_CHUNK(map.chunk,bit) & (1 << CHUNK_OFFSET(bit) )
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#define get_sys_bits(map,bit) \
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( MAP_CHUNK(map.chunk,bit) )
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#define set_sys_bit(map,bit) \
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( MAP_CHUNK(map.chunk,bit) |= (1 << CHUNK_OFFSET(bit) )
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#define unset_sys_bit(map,bit) \
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( MAP_CHUNK(map.chunk,bit) &= ~(1 << CHUNK_OFFSET(bit) )
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/* args to intr_init() */
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#define INTS_ORIG 0 /* restore interrupts */
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#define INTS_MINIX 1 /* initialize interrupts for minix */
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/* for kputc() */
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#define END_OF_KMESS 0
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#endif /* CONST_H */
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