diff options
Diffstat (limited to 'sys/alpha/include/pmap.h')
| -rw-r--r-- | sys/alpha/include/pmap.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/sys/alpha/include/pmap.h b/sys/alpha/include/pmap.h index 56c9d6a..08c78dc 100644 --- a/sys/alpha/include/pmap.h +++ b/sys/alpha/include/pmap.h @@ -45,6 +45,9 @@ #ifndef _MACHINE_PMAP_H_ #define _MACHINE_PMAP_H_ +#include <machine/chipset.h> +#include <sys/systm.h> + /* * Define meanings for a few software bits in the pte */ @@ -142,12 +145,16 @@ pmap_kextract(vm_offset_t va) #define vtophys(va) pmap_kextract(((vm_offset_t) (va))) -extern vm_offset_t alpha_XXX_dmamap_or; - static __inline vm_offset_t alpha_XXX_dmamap(vm_offset_t va) { - return (pmap_kextract(va) | alpha_XXX_dmamap_or); + vm_offset_t pa = pmap_kextract(va); + if (pa >= chipset.dmsize) + panic ("driver uses alpha_XXX_dmamap() for an address that" + "is not within direct map"); + if (chipset.pci_sgmap != NULL) + panic ("driver uses alpha_XXX_dmamap() on largemem system"); + return (pa + chipset.dmoffset); } #endif /* _KERNEL */ |
