[IA64] [kdump] machveg=dig on hpzx1 platforms

[Luck, Tony]

> Here is a patch to do that.  We use this internally, but
> I had forgotten to post it.

Terry,

Just got to applying some older patches ... perhaps this one has
been sitting too long because I had some apply & build problems with it.

Building with arch/ia64/configs/zx1_defconfig and with this patch
hand applied I get:

  LD      .tmp_vmlinux1
arch/ia64/hp/common/built-in.o(.init.text+0xcc2): In function `sba_init':
: undefined reference to `swiotlb_late_init_with_default_size'
arch/ia64/hp/common/built-in.o(.init.text+0xd02): In function `sba_init':
: undefined reference to `machvec_init'
make: *** [.tmp_vmlinux1] Error 1

sba_init() uses these routines inside #ifdef CONFIG_I64_GENERIC, perhaps
you need to do the same?


Other issues:
1) No "Signed-off-by"

2) +#include <linux/crash_dump.h>

We usually group all the <linux/*> includes together before the <asm/*> ones

3) +extern int swiotlb_late_init_with_default_size (size_t size);

extern declarations in ".c" files are frowned upon.  This should be in
a header file, which should be included (though I see that this guideline
has already been ignored as you were just moving the declaration).

-Tony