On Mon, Jun 17, 2013 at 4:22 PM, Toshi Kani <[email protected]> wrote: > On Fri, 2013-06-14 at 17:56 -0700, Yinghai Lu wrote: >> Now we only search buffer for override acpi table under 4G. >> In some case, like user use memmap to exclude all low ram, >> we may not find range for it under 4G. >> >> Do second try to search above 4G. >> >> Signed-off-by: Yinghai Lu <[email protected]> >> Cc: "Rafael J. Wysocki" <[email protected]> >> Cc: [email protected] >> Tested-by: Thomas Renninger <[email protected]> >> Reviewed-by: Tang Chen <[email protected]> >> Tested-by: Tang Chen <[email protected]> >> --- >> drivers/acpi/osl.c | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c >> index 93e3194..42c48fc 100644 >> --- a/drivers/acpi/osl.c >> +++ b/drivers/acpi/osl.c >> @@ -627,6 +627,10 @@ void __init acpi_initrd_override(void *data, size_t >> size) >> /* under 4G at first, then above 4G */ >> acpi_tables_addr = memblock_find_in_range(0, (1ULL<<32) - 1, >> all_tables_size, PAGE_SIZE); >> + if (!acpi_tables_addr) >> + acpi_tables_addr = memblock_find_in_range(0, >> + ~(phys_addr_t)0, >> + all_tables_size, PAGE_SIZE); > > Should this search start from 4G, instead of 0?
should be ok, as memblock searching is top-down. Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
