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This commit is contained in:
scole 2017-04-08 17:46:01 +00:00
parent 3e92b4dd37
commit da4bb471a7
1 changed files with 70 additions and 1 deletions
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71
sys/arch/ia64/ia64/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.37 2016/12/23 07:15:27 cherry Exp $ */
/* $NetBSD: machdep.c,v 1.38 2017/04/08 17:46:01 scole Exp $ */
/*-
* Copyright (c) 2003,2004 Marcel Moolenaar
@ -142,8 +142,10 @@ uint64_t processor_frequency;
uint64_t bus_frequency;
uint64_t itc_frequency;
uint64_t ia64_pal_base;
uint64_t ia64_pal_size;
uint64_t ia64_port_base;
int ia64_sync_icache_needed = 0;
extern uint64_t ia64_gateway_page[];
@ -253,6 +255,30 @@ cpu_dumpconf(void)
return;
}
void
map_vhpt(uintptr_t vhpt)
{
pt_entry_t pte;
uint64_t psr;
pte = PTE_PRESENT | PTE_MA_WB | PTE_ACCESSED | PTE_DIRTY |
PTE_PL_KERN | PTE_AR_RW;
pte |= vhpt & PTE_PPN_MASK;
__asm __volatile("ptr.d %0,%1" :: "r"(vhpt),
"r"(pmap_vhpt_log2size << 2));
__asm __volatile("mov %0=psr" : "=r"(psr));
__asm __volatile("rsm psr.ic|psr.i");
ia64_srlz_i();
ia64_set_ifa(vhpt);
ia64_set_itir(pmap_vhpt_log2size << 2);
ia64_srlz_d();
__asm __volatile("itr.d dtr[%0]=%1" :: "r"(3), "r"(pte));
__asm __volatile("mov psr.l=%0" :: "r" (psr));
ia64_srlz_i();
}
void
map_pal_code(void)
{
@ -368,6 +394,15 @@ ia64_init(void)
ia64_set_fpsr(IA64_FPSR_DEFAULT);
/*
* Region 6 is direct mapped UC and region 7 is direct mapped
* WC. The details of this is controlled by the Alt {I,D}TLB
* handlers. Here we just make sure that they have the largest
* possible page size to minimise TLB usage.
*/
ia64_set_rr(IA64_RR_BASE(6), (6 << 8) | (LOG2_ID_PAGE_SIZE << 2));
ia64_set_rr(IA64_RR_BASE(7), (7 << 8) | (LOG2_ID_PAGE_SIZE << 2));
ia64_srlz_d();
/*
* TODO: Get critical system information (if possible, from the
@ -793,3 +828,37 @@ mm_md_physacc(paddr_t pa, vm_prot_t prot)
return 0; /* TODO: Implement. */
}
void
ia64_sync_icache(vaddr_t va, vsize_t sz)
{
vaddr_t lim;
if (!ia64_sync_icache_needed)
return;
lim = va + sz;
while (va < lim) {
ia64_fc_i(va);
va += 32; /* XXX */
}
ia64_sync_i();
ia64_srlz_i();
}
/*
* Construct a PCB from a trapframe. This is called from kdb_trap() where
* we want to start a backtrace from the function that caused us to enter
* the debugger. We have the context in the trapframe, but base the trace
* on the PCB. The PCB doesn't have to be perfect, as long as it contains
* enough for a backtrace.
*/
void
makectx(struct trapframe *tf, struct pcb *pcb)
{
pcb->pcb_special = tf->tf_special;
pcb->pcb_special.__spare = ~0UL; /* XXX see unwind.c */
save_callee_saved(&pcb->pcb_preserved);
save_callee_saved_fp(&pcb->pcb_preserved_fp);
}