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| author | Jason Evans <jasone@FreeBSD.org> | 2000-09-07 01:33:02 +0000 |
|---|---|---|
| committer | Jason Evans <jasone@FreeBSD.org> | 2000-09-07 01:33:02 +0000 |
| commit | 0384fff8c5b098545c3db311b0e0aa1ec4c9ae7e (patch) | |
| tree | bc6e36e781569f3efe04995c0b0befebb9154ef5 /sys/amd64/include/pcpu.h | |
| parent | 62ae6c89ad2b03770097d05590093f93b9d94e08 (diff) | |
| download | src-0384fff8c5b098545c3db311b0e0aa1ec4c9ae7e.tar.gz src-0384fff8c5b098545c3db311b0e0aa1ec4c9ae7e.zip | |
Major update to the way synchronization is done in the kernel. Highlights
include:
* Mutual exclusion is used instead of spl*(). See mutex(9). (Note: The
alpha port is still in transition and currently uses both.)
* Per-CPU idle processes.
* Interrupts are run in their own separate kernel threads and can be
preempted (i386 only).
Partially contributed by: BSDi (BSD/OS)
Submissions by (at least): cp, dfr, dillon, grog, jake, jhb, sheldonh
Notes
Notes:
svn path=/head/; revision=65557
Diffstat (limited to 'sys/amd64/include/pcpu.h')
| -rw-r--r-- | sys/amd64/include/pcpu.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sys/amd64/include/pcpu.h b/sys/amd64/include/pcpu.h index 58bd9cfe9416..440da60b4b83 100644 --- a/sys/amd64/include/pcpu.h +++ b/sys/amd64/include/pcpu.h @@ -26,6 +26,20 @@ * $FreeBSD$ */ +#ifndef _MACHINE_GLOBALDATA_H_ +#define _MACHINE_GLOBALDATA_H_ + +#include <vm/vm.h> +#include <vm/pmap.h> +#include <machine/pmap.h> +#include <machine/segments.h> +#include <machine/tss.h> + +/* XXX */ +#ifdef KTR_PERCPU +#include <sys/ktr.h> +#endif + /* * This structure maps out the global data that needs to be kept on a * per-cpu basis. genassym uses this to generate offsets for the assembler @@ -41,11 +55,14 @@ struct globaldata { struct privatespace *gd_prvspace; /* self-reference */ struct proc *gd_curproc; + struct proc *gd_prevproc; struct proc *gd_npxproc; struct pcb *gd_curpcb; + struct proc *gd_idleproc; struct timeval gd_switchtime; struct i386tss gd_common_tss; int gd_switchticks; + int gd_intr_nesting_level; struct segment_descriptor gd_common_tssd; struct segment_descriptor *gd_tss_gdt; #ifdef USER_LDT @@ -67,8 +84,22 @@ struct globaldata { unsigned *gd_prv_PADDR1; #endif u_int gd_astpending; + SLIST_ENTRY(globaldata) gd_allcpu; + int gd_witness_spin_check; +#ifdef KTR_PERCPU +#ifdef KTR + volatile int gd_ktr_idx; + char *gd_ktr_buf; + char gd_ktr_buf_data[KTR_SIZE]; +#endif +#endif }; +extern struct globaldata globaldata; + +SLIST_HEAD(cpuhead, globaldata); +extern struct cpuhead cpuhead; + #ifdef SMP /* * This is the upper (0xff800000) address space layout that is per-cpu. @@ -93,3 +124,5 @@ struct privatespace { extern struct privatespace SMP_prvspace[]; #endif + +#endif /* ! _MACHINE_GLOBALDATA_H_ */ |