aboutsummaryrefslogtreecommitdiffstats
path: root/arch/ia64/sn/kernel/iomv.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ia64/sn/kernel/iomv.c')
-rw-r--r--arch/ia64/sn/kernel/iomv.c82
1 files changed, 0 insertions, 82 deletions
diff --git a/arch/ia64/sn/kernel/iomv.c b/arch/ia64/sn/kernel/iomv.c
deleted file mode 100644
index 2b22a71663c1..000000000000
--- a/arch/ia64/sn/kernel/iomv.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * 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
- * @port: port to convert
- *
- * Legacy in/out instructions are converted to ld/st instructions
- * on IA64. This routine will convert a port number into a valid
- * SN i/o address. Used by sn_in*() and sn_out*().
- */
-
-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;
- 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 addr;
-
- /*
- * word align port, but need more than 10 bits
- * for accessing registers in bedrock local block
- * (so we don't do port&0xfff)
- */
- addr = (is_shub2() ? 0xc00000028c000000UL : 0xc0000087cc000000UL) | ((port >> 2) << 12);
- if ((port >= 0x1f0 && port <= 0x1f7) || port == 0x3f6 || port == 0x3f7)
- addr |= port;
- return (void *)addr;
- }
-}
-
-EXPORT_SYMBOL(sn_io_addr);
-
-/**
- * __sn_mmiowb - I/O space memory barrier
- *
- * See arch/ia64/include/asm/io.h and Documentation/driver-api/device-io.rst
- * for details.
- *
- * On SN2, we wait for the PIO_WRITE_STATUS SHub register to clear.
- * See PV 871084 for details about the WAR about zero value.
- *
- */
-void __sn_mmiowb(void)
-{
- 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();
-}
-
-EXPORT_SYMBOL(__sn_mmiowb);