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-rw-r--r--arch/powerpc/kernel/Makefile2
-rw-r--r--arch/powerpc/kernel/io.c117
-rw-r--r--arch/powerpc/kernel/misc.S95
-rw-r--r--arch/powerpc/kernel/ppc_ksyms.c7
-rw-r--r--include/asm-powerpc/io.h12
-rw-r--r--include/asm-ppc/io.h12
6 files changed, 130 insertions, 115 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 8b3f4faf576..8b133afbdc2 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -51,7 +51,7 @@ extra-$(CONFIG_8xx) := head_8xx.o
extra-y += vmlinux.lds
obj-y += time.o prom.o traps.o setup-common.o \
- udbg.o misc.o
+ udbg.o misc.o io.o
obj-$(CONFIG_PPC32) += entry_32.o setup_32.o misc_32.o
obj-$(CONFIG_PPC64) += misc_64.o dma_64.o iommu.o
obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o
diff --git a/arch/powerpc/kernel/io.c b/arch/powerpc/kernel/io.c
new file mode 100644
index 00000000000..80a3209acef
--- /dev/null
+++ b/arch/powerpc/kernel/io.c
@@ -0,0 +1,117 @@
+/*
+ * I/O string operations
+ * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ * Copyright (C) 2006 IBM Corporation
+ *
+ * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras.
+ *
+ * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
+ * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com)
+ *
+ * Rewritten in C by Stephen Rothwell.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/compiler.h>
+#include <linux/module.h>
+
+#include <asm/io.h>
+
+void _insb(volatile u8 __iomem *port, void *buf, long count)
+{
+ u8 *tbuf = buf;
+ u8 tmp;
+
+ if (unlikely(count <= 0))
+ return;
+ asm volatile("sync");
+ do {
+ tmp = *port;
+ asm volatile("eieio");
+ *tbuf++ = tmp;
+ } while (--count != 0);
+ asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
+}
+EXPORT_SYMBOL(_insb);
+
+void _outsb(volatile u8 __iomem *port, const void *buf, long count)
+{
+ const u8 *tbuf = buf;
+
+ if (unlikely(count <= 0))
+ return;
+ asm volatile("sync");
+ do {
+ *port = *tbuf++;
+ } while (--count != 0);
+ asm volatile("sync");
+}
+EXPORT_SYMBOL(_outsb);
+
+void _insw_ns(volatile u16 __iomem *port, void *buf, long count)
+{
+ u16 *tbuf = buf;
+ u16 tmp;
+
+ if (unlikely(count <= 0))
+ return;
+ asm volatile("sync");
+ do {
+ tmp = *port;
+ asm volatile("eieio");
+ *tbuf++ = tmp;
+ } while (--count != 0);
+ asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
+}
+EXPORT_SYMBOL(_insw_ns);
+
+void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count)
+{
+ const u16 *tbuf = buf;
+
+ if (unlikely(count <= 0))
+ return;
+ asm volatile("sync");
+ do {
+ *port = *tbuf++;
+ } while (--count != 0);
+ asm volatile("sync");
+}
+EXPORT_SYMBOL(_outsw_ns);
+
+void _insl_ns(volatile u32 __iomem *port, void *buf, long count)
+{
+ u32 *tbuf = buf;
+ u32 tmp;
+
+ if (unlikely(count <= 0))
+ return;
+ asm volatile("sync");
+ do {
+ tmp = *port;
+ asm volatile("eieio");
+ *tbuf++ = tmp;
+ } while (--count != 0);
+ asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
+}
+EXPORT_SYMBOL(_insl_ns);
+
+void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count)
+{
+ const u32 *tbuf = buf;
+
+ if (unlikely(count <= 0))
+ return;
+ asm volatile("sync");
+ do {
+ *port = *tbuf++;
+ } while (--count != 0);
+ asm volatile("sync");
+}
+EXPORT_SYMBOL(_outsl_ns);
diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S
index 6feb391422e..330c9dc7db8 100644
--- a/arch/powerpc/kernel/misc.S
+++ b/arch/powerpc/kernel/misc.S
@@ -43,98 +43,3 @@ _GLOBAL(add_reloc_offset)
add r3,r3,r5
mtlr r0
blr
-
-/*
- * I/O string operations
- *
- * insb(port, buf, len)
- * outsb(port, buf, len)
- * insw(port, buf, len)
- * outsw(port, buf, len)
- * insl(port, buf, len)
- * outsl(port, buf, len)
- * insw_ns(port, buf, len)
- * outsw_ns(port, buf, len)
- * insl_ns(port, buf, len)
- * outsl_ns(port, buf, len)
- *
- * The *_ns versions don't do byte-swapping.
- */
-_GLOBAL(_insb)
- sync
- cmpwi 0,r5,0
- mtctr r5
- subi r4,r4,1
- blelr-
-00: lbz r5,0(r3)
- eieio
- stbu r5,1(r4)
- bdnz 00b
- twi 0,r5,0
- isync
- blr
-
-_GLOBAL(_outsb)
- cmpwi 0,r5,0
- mtctr r5
- subi r4,r4,1
- blelr-
- sync
-00: lbzu r5,1(r4)
- stb r5,0(r3)
- bdnz 00b
- sync
- blr
-
-_GLOBAL(_insw_ns)
- sync
- cmpwi 0,r5,0
- mtctr r5
- subi r4,r4,2
- blelr-
-00: lhz r5,0(r3)
- eieio
- sthu r5,2(r4)
- bdnz 00b
- twi 0,r5,0
- isync
- blr
-
-_GLOBAL(_outsw_ns)
- cmpwi 0,r5,0
- mtctr r5
- subi r4,r4,2
- blelr-
- sync
-00: lhzu r5,2(r4)
- sth r5,0(r3)
- bdnz 00b
- sync
- blr
-
-_GLOBAL(_insl_ns)
- sync
- cmpwi 0,r5,0
- mtctr r5
- subi r4,r4,4
- blelr-
-00: lwz r5,0(r3)
- eieio
- stwu r5,4(r4)
- bdnz 00b
- twi 0,r5,0
- isync
- blr
-
-_GLOBAL(_outsl_ns)
- cmpwi 0,r5,0
- mtctr r5
- subi r4,r4,4
- blelr-
- sync
-00: lwzu r5,4(r4)
- stw r5,0(r3)
- bdnz 00b
- sync
- blr
-
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 75429e58051..807193a3c78 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -95,13 +95,6 @@ EXPORT_SYMBOL(__strnlen_user);
EXPORT_SYMBOL(copy_4K_page);
#endif
-EXPORT_SYMBOL(_insb);
-EXPORT_SYMBOL(_outsb);
-EXPORT_SYMBOL(_insw_ns);
-EXPORT_SYMBOL(_outsw_ns);
-EXPORT_SYMBOL(_insl_ns);
-EXPORT_SYMBOL(_outsl_ns);
-
#if defined(CONFIG_PPC32) && (defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE))
EXPORT_SYMBOL(ppc_ide_md);
#endif
diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 51a59874736..57e7d14d656 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -143,12 +143,12 @@ static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
#define readl_relaxed(addr) readl(addr)
#define readq_relaxed(addr) readq(addr)
-extern void _insb(volatile u8 __iomem *port, void *buf, int ns);
-extern void _outsb(volatile u8 __iomem *port, const void *buf, int ns);
-extern void _insw_ns(volatile u16 __iomem *port, void *buf, int ns);
-extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, int ns);
-extern void _insl_ns(volatile u32 __iomem *port, void *buf, int nl);
-extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, int nl);
+extern void _insb(volatile u8 __iomem *port, void *buf, long count);
+extern void _outsb(volatile u8 __iomem *port, const void *buf, long count);
+extern void _insw_ns(volatile u16 __iomem *port, void *buf, long count);
+extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count);
+extern void _insl_ns(volatile u32 __iomem *port, void *buf, long count);
+extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count);
static inline void mmiowb(void)
{
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
index 9fac420f164..3d9a9e6f332 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -327,12 +327,12 @@ __do_out_asm(outl, "stwbrx")
#define inl_p(port) inl((port))
#define outl_p(val, port) outl((val), (port))
-extern void _insb(volatile u8 __iomem *port, void *buf, int ns);
-extern void _outsb(volatile u8 __iomem *port, const void *buf, int ns);
-extern void _insw_ns(volatile u16 __iomem *port, void *buf, int ns);
-extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, int ns);
-extern void _insl_ns(volatile u32 __iomem *port, void *buf, int nl);
-extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, int nl);
+extern void _insb(volatile u8 __iomem *port, void *buf, long count);
+extern void _outsb(volatile u8 __iomem *port, const void *buf, long count);
+extern void _insw_ns(volatile u16 __iomem *port, void *buf, long count);
+extern void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count);
+extern void _insl_ns(volatile u32 __iomem *port, void *buf, long count);
+extern void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count);
#define IO_SPACE_LIMIT ~0
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-25 10:12:23 +0000