>>>>> "Tony" == Luck, Tony <[EMAIL PROTECTED]> writes:
Tony> So it looks like your problem is
Tony> CONFIG_IA64_UNCACHED_ALLOCATOR=y
>> Impossible, thats my code! It can't be broken ;-)
>>
>> Anyone who have tried this on an ZX1 box? Otherwise I'll try it out
>> on my 2600 tomorrow and see if I can reproduce it.
Tony> It may help to know that on the tiger, efi_memmap_walk_uc
Tony> decides that this efi_memory_desc_t entry is fair game:
Tony> type = 11 (EFI_MEMORY_MAPPED_IO) phys_addr = 0xfe000000
Tony> num_pages = 0x1000 attribute = 0x1
Details, details ;-)
I think this patch should take care of it.
Cheers,
Jes
Only grab uncached pages from the boot services data section to avoid
grabbing memory mapped IO regions by mistake.
Signed-off-by: Jes Sorensen <[EMAIL PROTECTED]>
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -431,7 +431,8 @@ efi_memmap_walk_uc (efi_freemem_callback
for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
md = p;
- if (md->attribute == EFI_MEMORY_UC) {
+ if (md->type == EFI_BOOT_SERVICES_DATA &&
+ md->attribute == EFI_MEMORY_UC) {
start = PAGE_ALIGN(md->phys_addr);
end = PAGE_ALIGN((md->phys_addr+(md->num_pages <<
EFI_PAGE_SHIFT)) & PAGE_MASK);
if ((*callback)(start, end, NULL) < 0)
-
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