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Basic VM and other minor improvements.

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Not complete, probably not fully debugged or optimized.
This commit is contained in:
Ben Gras
2008-11-19 12:26:10 +00:00
parent c888305e21
commit c078ec0331
273 changed files with 10814 additions and 4305 deletions
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18
kernel/const.h
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@@ -6,6 +6,7 @@
#include <minix/bitmap.h>
#include "config.h"
#include "debug.h"
/* Map a process number to a privilege structure id. */
#define s_nr_to_id(n) (NR_TASKS + (n) + 1)
@@ -37,24 +38,15 @@
( MAP_CHUNK(map.chunk,bit) &= ~(1 << CHUNK_OFFSET(bit) )
#define NR_SYS_CHUNKS BITMAP_CHUNKS(NR_SYS_PROCS)
#if DEBUG_LOCK_CHECK
#define reallock(c, v) { if(intr_disabled()) { kinfo.relocking++; } else { intr_disable(); } }
#else
#define reallock(c, v) intr_disable()
#endif
#define reallock do { int d; d = intr_disabled(); intr_disable(); locklevel++; if(d && locklevel == 1) { minix_panic("reallock while interrupts disabled first time", __LINE__); } } while(0)
#define realunlock(c) intr_enable()
#define realunlock do { if(!intr_disabled()) { minix_panic("realunlock while interrupts enabled", __LINE__); } if(locklevel < 1) { minix_panic("realunlock while locklevel below 1", __LINE__); } locklevel--; if(locklevel == 0) { intr_enable(); } } while(0)
#if DEBUG_TIME_LOCKS
#define lock(c, v) do { reallock(c, v); locktimestart(c, v); } while(0)
#define unlock(c) do { locktimeend(c); realunlock(c); } while(0)
#else
/* Disable/ enable hardware interrupts. The parameters of lock() and unlock()
* are used when debugging is enabled. See debug.h for more information.
*/
#define lock(c, v) reallock(c, v)
#define unlock(c) realunlock(c)
#endif
#define lock reallock
#define unlock realunlock
/* args to intr_init() */
#define INTS_ORIG 0 /* restore interrupts */