diff options
Diffstat (limited to 'arch/alpha/kernel/core_cia.c')
| -rw-r--r-- | arch/alpha/kernel/core_cia.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/alpha/kernel/core_cia.c b/arch/alpha/kernel/core_cia.c index 36b9a1fa9..b8a7f18ee 100644 --- a/arch/alpha/kernel/core_cia.c +++ b/arch/alpha/kernel/core_cia.c @@ -405,10 +405,12 @@ cia_init_arch(void) * ??? We ought to scale window 1 with memory. */ - /* NetBSD hints that page tables must be aligned to 32K due - to a hardware bug. No description of what models affected. */ - hose->sg_isa = iommu_arena_new(0x00800000, 0x00800000, 32768); - hose->sg_pci = iommu_arena_new(0x40000000, 0x08000000, 32768); + /* ??? NetBSD hints that page tables must be aligned to 32K, + possibly due to a hardware bug. This is over-aligned + from the 8K alignment one would expect for an 8MB window. + No description of what CIA revisions affected. */ + hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0x8000); + hose->sg_pci = iommu_arena_new(hose, 0x40000000, 0x08000000, 0); __direct_map_base = 0x80000000; __direct_map_size = 0x80000000; |