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Dig the information about which tlb slots were used to map the kernel out

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of the metadata passed by the loader.
This commit is contained in:
Jake Burkholder 2002-03-04 07:07:10 +00:00
parent d89989e949
commit 907164660a
2 changed files with 21 additions and 10 deletions
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3
sys/sparc64/include/tlb.h
View File

@ -85,6 +85,9 @@
#define MMU_SFSR_W (1L << MMU_SFSR_W_SHIFT)
extern int kernel_tlb_slots;
extern struct tte *kernel_ttes;
/*
* Some tlb operations must be atomical, so no interrupt or trap can be allowed
* while they are in progress. Traps should not happen, but interrupts need to

28
sys/sparc64/sparc64/machdep.c
View File

@ -63,11 +63,13 @@
#include <sys/interrupt.h>
#include <sys/ptrace.h>
#include <sys/signalvar.h>
#include <sys/smp.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <sys/timetc.h>
#include <sys/ucontext.h>
#include <sys/user.h>
#include <sys/ucontext.h>
#include <sys/exec.h>
#include <dev/ofw/openfirm.h>
@ -98,16 +100,14 @@
#include <machine/tick.h>
#include <machine/tlb.h>
#include <machine/tstate.h>
#include <machine/upa.h>
#include <machine/ver.h>
#define MD_FETCH(mdp, info, type) ({ \
type *__p; \
__p = (type *)preload_search_info((mdp), MODINFO_METADATA | (info)); \
__p ? *__p : 0; \
})
typedef int ofw_vec_t(void *);
struct tte *kernel_ttes;
int kernel_tlb_slots;
int physmem;
int cold = 1;
long dumplo;
@ -131,7 +131,7 @@ u_long ofw_tba;
static struct timecounter tick_tc;
static timecounter_get_t tick_get_timecount;
void sparc64_init(caddr_t mdp, u_int *state, u_int mid, u_int bootmid,
void sparc64_init(caddr_t mdp, u_long o1, u_long o2, u_long o3,
ofw_vec_t *vec);
void sparc64_shutdown_final(void *dummy, int howto);
@ -194,8 +194,7 @@ tick_get_timecount(struct timecounter *tc)
}
void
sparc64_init(caddr_t mdp, u_int *state, u_int mid, u_int bootmid,
ofw_vec_t *vec)
sparc64_init(caddr_t mdp, u_long o1, u_long o2, u_long o3, ofw_vec_t *vec)
{
struct pcpu *pc;
vm_offset_t end;
@ -221,6 +220,10 @@ sparc64_init(caddr_t mdp, u_int *state, u_int mid, u_int bootmid,
boothowto = MD_FETCH(kmdp, MODINFOMD_HOWTO, int);
kern_envp = MD_FETCH(kmdp, MODINFOMD_ENVP, char *);
end = MD_FETCH(kmdp, MODINFOMD_KERNEND, vm_offset_t);
kernel_tlb_slots = MD_FETCH(kmdp, MODINFOMD_DTLB_SLOTS,
int);
kernel_ttes = (struct tte *)preload_search_info(kmdp,
MODINFO_METADATA | MODINFOMD_DTLB);
}
}
@ -252,6 +255,10 @@ sparc64_init(caddr_t mdp, u_int *state, u_int mid, u_int bootmid,
kdb_init();
#endif
#ifdef SMP
mp_tramp = mp_tramp_alloc();
#endif
/*
* Initialize virtual memory and calculate physmem.
*/
@ -296,7 +303,8 @@ sparc64_init(caddr_t mdp, u_int *state, u_int mid, u_int bootmid,
pcpu_init(pc, 0, sizeof(struct pcpu));
pc->pc_curthread = &thread0;
pc->pc_curpcb = thread0.td_pcb;
pc->pc_mid = mid;
pc->pc_mid = UPA_CR_GET_MID(ldxa(0, ASI_UPA_CONFIG_REG));
pc->pc_addr = (vm_offset_t)pcpu0;
pc->pc_tlb_ctx = TLB_CTX_USER_MIN;
pc->pc_tlb_ctx_min = TLB_CTX_USER_MIN;
pc->pc_tlb_ctx_max = TLB_CTX_USER_MAX;