* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2000-2003 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2000-2003, 2006 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/module.h>
+#include <linux/acpi.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>
+#include <asm/sn/acpi.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
void *sn_io_addr(unsigned long port)
{
if (!IS_RUNNING_ON_SIMULATOR()) {
+ if (IS_LEGACY_VGA_IOPORT(port))
+ return (__ia64_mk_io_addr(port));
/* On sn2, legacy I/O ports don't point at anything */
if (port < (64 * 1024))
return NULL;
- return ((void *)(port | __IA64_UNCACHED_OFFSET));
+ if (SN_ACPI_BASE_SUPPORT())
+ return (__ia64_mk_io_addr(port));
+ else
+ return ((void *)(port | __IA64_UNCACHED_OFFSET));
} else {
/* but the simulator uses them... */
- unsigned long io_base;
unsigned long addr;
/*
* for accessing registers in bedrock local block
* (so we don't do port&0xfff)
*/
- if ((port >= 0x1f0 && port <= 0x1f7) ||
- port == 0x3f6 || port == 0x3f7) {
- io_base = (0xc000000fcc000000UL |
- ((unsigned long)get_nasid() << 38));
- addr = io_base | ((port >> 2) << 12) | (port & 0xfff);
- } else {
- addr = __ia64_get_io_port_base() | ((port >> 2) << 2);
- }
+ addr = (is_shub2() ? 0xc00000028c000000UL : 0xc0000087cc000000UL) | ((port >> 2) << 12);
+ if ((port >= 0x1f0 && port <= 0x1f7) || port == 0x3f6 || port == 0x3f7)
+ addr |= port;
return (void *)addr;
}
}
*/
void __sn_mmiowb(void)
{
- while ((((volatile unsigned long)(*pda->pio_write_status_addr)) &
- SH_PIO_WRITE_STATUS_0_PENDING_WRITE_COUNT_MASK) !=
- SH_PIO_WRITE_STATUS_0_PENDING_WRITE_COUNT_MASK)
+ volatile unsigned long *adr = pda->pio_write_status_addr;
+ unsigned long val = pda->pio_write_status_val;
+
+ while ((*adr & SH_PIO_WRITE_STATUS_PENDING_WRITE_COUNT_MASK) != val)
cpu_relax();
}