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Don't assume that physical addresses are identity mapped. This allows

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the second processor on G5 systems to start. Note that SMP is still
non-functional on these systems because of IPI delivery problems.
This commit is contained in:
Nathan Whitehorn 2009-10-18 17:22:08 +00:00
parent 635dc3f7ff
commit c7e1669396
1 changed files with 8 additions and 1 deletions
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9
sys/powerpc/aim/platform_chrp.c
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@ -35,11 +35,14 @@ __FBSDID("$FreeBSD$");
#include <sys/pcpu.h>
#include <sys/proc.h>
#include <sys/smp.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <machine/hid.h>
#include <machine/platformvar.h>
#include <machine/pmap.h>
#include <machine/smp.h>
#include <machine/spr.h>
@ -220,6 +223,7 @@ chrp_smp_start_cpu(platform_t plat, struct pcpu *pc)
#ifdef SMP
phandle_t cpu;
volatile uint8_t *rstvec;
static volatile uint8_t *rstvec_virtbase = NULL;
int res, reset, timeout;
cpu = pc->pc_hwref;
@ -229,7 +233,10 @@ chrp_smp_start_cpu(platform_t plat, struct pcpu *pc)
ap_pcpu = pc;
rstvec = (uint8_t *)(0x80000000 + reset);
if (rstvec_virtbase == NULL)
rstvec_virtbase = pmap_mapdev(0x80000000, PAGE_SIZE);
rstvec = rstvec_virtbase + reset;
*rstvec = 4;
powerpc_sync();