freebsd-skq/sys/ia64/include/smp.h
Marcel Moolenaar f5b454cf25 o Rename ia64_count_aps to ia64_count_cpus and reimplement the
function to return the total number of CPUs and not the highest
   CPU id.
o  Define mp_maxid based on the minimum of the actual number of
   CPUs in the system and MAXCPU.
o  In cpu_mp_add, when the CPU id of the CPU we're trying to add
   is larger than mp_maxid, don't add the CPU. Formerly this was
   based on MAXCPU. Don't count CPUs when we add them. We already
   know how many CPUs exist.
o  Replace MAXCPU with mp_maxid when used in loops that iterate
   over the id space. This avoids a couple of useless iterations.
o  In cpu_mp_unleash, use the number of CPUs to determine if we
   need to launch the CPUs.
o  Remove mp_hardware as it's not used anymore.
o  Move the IPI vector array from mp_machdep.c to sal.c. We use
   the array as a centralized place to collect vector assignments.
   Note that we still assign vectors to SMP specific IPIs in
   non-SMP configurations. Rename the array from mp_ipi_vector to
   ipi_vector.
o  Add IPI_MCA_RENDEZ and IPI_MCA_CMCV. These are used by MCA.
   Note that IPI_MCA_CMCV is not SMP specific.
o  Initialize the ipi_vector array so that we place the IPIs in
   sensible priority classes. The classes are relative to where
   the AP wake-up vector is located to guarantee that it's the
   highest priority (external) interrupt. Class assignment is
   as follows:
	class	IPI		notes
	x	AP wake-up	(normally x=15)
	x-1	MCA rendezvous
	x-2	AST, Rendezvous, stop
	x-3	CMCV, test
2002-05-12 05:54:21 +00:00

39 lines
854 B
C

/*
* $FreeBSD$
*/
#ifndef _MACHINE_SMP_H_
#define _MACHINE_SMP_H_
#ifdef _KERNEL
/*
* Interprocessor interrupts for SMP. The following values are indices
* into the IPI vector table. The SAL gives us the vector used for AP
* wake-up. We base the other vectors on that. Keep IPI_AP_WAKEUP at
* index 0 and IPI_MCA_RENDEZ at index 1. See sal.c for details.
*/
/* Architecture specific IPIs. */
#define IPI_AP_WAKEUP 0
#define IPI_MCA_RENDEZ 1
#define IPI_MCA_CMCV 2
#define IPI_TEST 3
/* Machine independent IPIs. */
#define IPI_AST 4
#define IPI_RENDEZVOUS 5
#define IPI_STOP 6
#define IPI_COUNT 7
#ifndef LOCORE
extern int ipi_vector[];
void ipi_all(int ipi);
void ipi_all_but_self(int ipi);
void ipi_selected(u_int64_t cpus, int ipi);
void ipi_self(int ipi);
#endif /* !LOCORE */
#endif /* _KERNEL */
#endif /* !_MACHINE_SMP_H */