diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/mips64/mips64/pmap.c | 43 | ||||
| -rw-r--r-- | sys/arch/mips64/mips64/vm_machdep.c | 12 |
2 files changed, 42 insertions, 13 deletions
diff --git a/sys/arch/mips64/mips64/pmap.c b/sys/arch/mips64/mips64/pmap.c index d3edd57e995..96ebbbe9358 100644 --- a/sys/arch/mips64/mips64/pmap.c +++ b/sys/arch/mips64/mips64/pmap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap.c,v 1.55 2012/03/19 20:42:26 miod Exp $ */ +/* $OpenBSD: pmap.c,v 1.56 2012/03/19 21:56:49 miod Exp $ */ /* * Copyright (c) 2001-2004 Opsycon AB (www.opsycon.se / www.opsycon.com) @@ -140,7 +140,6 @@ static struct pmap kernel_pmap_store / sizeof(struct pmap)]; struct pmap *const kernel_pmap_ptr = kernel_pmap_store; -psize_t mem_size; /* memory size in bytes */ vaddr_t virtual_start; /* VA of first avail page (after kernel bss)*/ vaddr_t virtual_end; /* VA of last avail page (end of kernel AS) */ @@ -437,16 +436,14 @@ pmap_steal_memory(vsize_t size, vaddr_t *vstartp, vaddr_t *vendp) #ifdef __sgi__ /* - * If we are running with a 32 bit ARCBios (i.e. kernel - * linked in CKSEG0), return a CKSEG0 address whenever possible. + * Return a CKSEG0 address whenever possible. */ - if (IS_XKPHYS((vaddr_t)&pmap_steal_memory) || - pa + size >= CKSEG_SIZE) - va = PHYS_TO_XKPHYS(pa, CCA_CACHED); - else + if (pa + size < CKSEG_SIZE) va = PHYS_TO_CKSEG0(pa); -#else + else va = PHYS_TO_XKPHYS(pa, CCA_CACHED); +#else + va = PHYS_TO_XKPHYS(pa, CCA_CACHED); #endif bzero((void *)va, size); @@ -1651,7 +1648,19 @@ vaddr_t pmap_map_direct(vm_page_t pg) { paddr_t pa = VM_PAGE_TO_PHYS(pg); - vaddr_t va = PHYS_TO_XKPHYS(pa, CCA_CACHED); + vaddr_t va; + +#ifdef __sgi__ + /* + * Return a CKSEG0 address whenever possible. + */ + if (pa < CKSEG_SIZE) + va = PHYS_TO_CKSEG0(pa); + else + va = PHYS_TO_XKPHYS(pa, CCA_CACHED); +#else + va = PHYS_TO_XKPHYS(pa, CCA_CACHED); +#endif return va; } @@ -1659,9 +1668,19 @@ pmap_map_direct(vm_page_t pg) vm_page_t pmap_unmap_direct(vaddr_t va) { - paddr_t pa = XKPHYS_TO_PHYS(va); - vm_page_t pg = PHYS_TO_VM_PAGE(pa); + paddr_t pa; + vm_page_t pg; +#ifdef __sgi__ + if (va >= CKSEG0_BASE) + pa = CKSEG0_TO_PHYS(va); + else + pa = XKPHYS_TO_PHYS(va); +#else + pa = XKPHYS_TO_PHYS(va); +#endif + + pg = PHYS_TO_VM_PAGE(pa); if (CpuCacheAliasMask) Mips_HitInvalidateDCache(curcpu(), va, pa, PAGE_SIZE); diff --git a/sys/arch/mips64/mips64/vm_machdep.c b/sys/arch/mips64/mips64/vm_machdep.c index 7ed194dea94..ff823b6aea9 100644 --- a/sys/arch/mips64/mips64/vm_machdep.c +++ b/sys/arch/mips64/mips64/vm_machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vm_machdep.c,v 1.24 2010/11/24 21:16:28 miod Exp $ */ +/* $OpenBSD: vm_machdep.c,v 1.25 2012/03/19 21:56:49 miod Exp $ */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1992, 1993 @@ -76,8 +76,18 @@ cpu_fork(p1, p2, stack, stacksize, func, arg) /* replace p_addr with a direct translation address */ p2->p_md.md_uarea = (vaddr_t)p2->p_addr; pmap_extract(pmap_kernel(), p2->p_md.md_uarea, &pa); +#ifdef __sgi__ + /* + * Return a CKSEG0 address whenever possible. + */ + if (pa < CKSEG_SIZE) + p2->p_addr = (void *)PHYS_TO_CKSEG0(pa); + else + p2->p_addr = (void *)PHYS_TO_XKPHYS(pa, CCA_CACHED); +#else p2->p_addr = (void *)PHYS_TO_XKPHYS(pa, CCA_CACHED); #endif +#endif pcb = &p2->p_addr->u_pcb; /* |