ACPI errors on amd64 (sempron)

[John Baldwin]

On Friday 21 October 2005 02:38 am, Mathieu Prevot wrote:
> > I think that the generation of the OS for Amd64 needs to set this
> > define:
> >
> > #define ACPI_MISALIGNED_TRANSFERS
> >
> > I will look into doing this automatically in the actypes.h header
>
> To confirm, the same output on the same system but with
> 6.0RC1i386GENERIC:

I think Robert's point is a patch like the following hack would shut up the 
warnings:

Index: actypes.h
===================================================================
RCS file: /usr/cvs/src/sys/contrib/dev/acpica/actypes.h,v
retrieving revision 1.1.1.29
diff -u -r1.1.1.29 actypes.h
--- actypes.h   1 Dec 2004 23:13:39 -0000       1.1.1.29
+++ actypes.h   21 Oct 2005 13:52:22 -0000
@@ -194,6 +194,9 @@
 typedef UINT64                          ACPI_SIZE;

 #define ALIGNED_ADDRESS_BOUNDARY        0x00000008      /* No hardware 
alignment support in IA64 */
+#ifdef __amd64__
+#define ACPI_MISALIGNED_TRANSFERS
+#endif
 #define ACPI_USE_NATIVE_DIVIDE                          /* Native 64-bit 
integer support */
 #define ACPI_MAX_PTR                    ACPI_UINT64_MAX
 #define ACPI_SIZE_MAX                   ACPI_UINT64_MAX

The problem is that currently the actypes.h header assumes that the only 
64-bit platform it runs on is IA-64, but it also runs on amd64 and amd64 
allows for unaligned accesses just like i386.

I'm not sure if ALIGNED_ADDRESS_BOUNDARY should be 0x4 for amd64 either, 
probably not though.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org