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[IA64-SGI] altix: enable vgacon support

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Altix patch to enable use of vgacon driver on that platform.  Depends on the
PCDP generalization patch discussed at:

	http://marc.theaimsgroup.com/?l=linux-ia64&m=111446235101939&w=2

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Mark Maule
2005-04-26 08:01:00 -07:00
committed by Tony Luck
parent 66b7f8a304
commit a9f9de7378
3 changed files with 19 additions and 9 deletions
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6
arch/ia64/sn/kernel/iomv.c
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@@ -9,12 +9,16 @@
#include <linux/module.h>
#include <asm/io.h>
#include <asm/delay.h>
#include <asm/vga.h>
#include <asm/sn/nodepda.h>
#include <asm/sn/simulator.h>
#include <asm/sn/pda.h>
#include <asm/sn/sn_cpuid.h>
#include <asm/sn/shub_mmr.h>
#define IS_LEGACY_VGA_IOPORT(p) \
(((p) >= 0x3b0 && (p) <= 0x3bb) || ((p) >= 0x3c0 && (p) <= 0x3df))
/**
* sn_io_addr - convert an in/out port to an i/o address
* @port: port to convert
@@ -26,6 +30,8 @@
void *sn_io_addr(unsigned long port)
{
if (!IS_RUNNING_ON_SIMULATOR()) {
if (IS_LEGACY_VGA_IOPORT(port))
port += vga_console_iobase;
/* On sn2, legacy I/O ports don't point at anything */
if (port < (64 * 1024))
return NULL;