diff options
| author | Michael Shalayeff <mickey@cvs.openbsd.org> | 2002-10-30 23:55:59 +0000 |
|---|---|---|
| committer | Michael Shalayeff <mickey@cvs.openbsd.org> | 2002-10-30 23:55:59 +0000 |
| commit | f506071530e2ea8409a6d336325238ece9920da7 (patch) | |
| tree | 627eed702c08e8a7ccb797d4420310d779004629 /sys/arch/hppa | |
| parent | 5119f9e4b241a59ad60ff534d5c7434c5561206f (diff) | |
as found on a 256m machine of millert@'s allocate pdes for the whole kernel virtual and do not bother (just four anyway); as a side work do not adjust addr,size since there is no need
Diffstat (limited to 'sys/arch/hppa')
| -rw-r--r-- | sys/arch/hppa/hppa/pmap.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/sys/arch/hppa/hppa/pmap.c b/sys/arch/hppa/hppa/pmap.c index 986f7c64ae3..67e53e8ee5f 100644 --- a/sys/arch/hppa/hppa/pmap.c +++ b/sys/arch/hppa/hppa/pmap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap.c,v 1.87 2002/10/28 20:49:16 mickey Exp $ */ +/* $OpenBSD: pmap.c,v 1.88 2002/10/30 23:55:58 mickey Exp $ */ /* * Copyright (c) 1998-2002 Michael Shalayeff @@ -434,7 +434,7 @@ pmap_bootstrap(vstart) extern char etext, etext1; extern u_int totalphysmem, *ie_mem; extern paddr_t hppa_vtop; - vaddr_t va, endaddr, addr = hppa_round_page(vstart), t; + vaddr_t va, addr = hppa_round_page(vstart), t; vsize_t size; #if 0 && (defined(HP7100LC_CPU) || defined(HP7300LC_CPU)) struct vp_entry *hptp; @@ -516,11 +516,12 @@ pmap_bootstrap(vstart) /* TODO find a way to avoid using cr*, use cpu regs instead */ mtctl(addr, CR_VTOP); mtctl(size - 1, CR_HPTMASK); - addr += size; + addr += size; /* should keep the alignment right */ } #endif /* HP7100LC_CPU | HP7300LC_CPU */ /* XXX PCXS needs this inserted into an IBTLB */ + /* and can block-map the whole phys w/ another */ t = (vaddr_t)&etext1; if (btlb_insert(HPPA_SID_KERNEL, 0, 0, &t, pmap_sid2pid(HPPA_SID_KERNEL) | @@ -541,18 +542,16 @@ pmap_bootstrap(vstart) * lazy map only needed pieces (see bus_mem_add_mapping() for refs). */ - /* one for the start of the kernel virtual */ - npdes = 1 + (totalphysmem + btoc(PDE_SIZE) - 1) / btoc(PDE_SIZE); - addr = round_page(addr); - size = npdes * PAGE_SIZE; + /* four more for the the kernel virtual */ + npdes = 4 + (totalphysmem + btoc(PDE_SIZE) - 1) / btoc(PDE_SIZE); uvm_page_physload(0, totalphysmem, - atop(addr + size), totalphysmem, VM_FREELIST_DEFAULT); + atop(addr) + npdes, totalphysmem, VM_FREELIST_DEFAULT); /* map the pdes */ for (va = 0; npdes--; va += PDE_SIZE, addr += PAGE_SIZE) { /* last pde is for the start of kernel virtual */ - if (!npdes) + if (npdes == 3) va = SYSCALLGATE; /* now map the pde for the physmem */ bzero((void *)addr, PAGE_SIZE); @@ -574,7 +573,7 @@ pmap_bootstrap(vstart) pmap_kenter_pa(va, va, prot); } - DPRINTF(PDB_INIT, ("bootstrap: mapped %p - 0x%x\n", &etext1, endaddr)); + DPRINTF(PDB_INIT, ("bootstrap: mapped %p - 0x%x\n", &etext1, va)); } void |