The patch titled
Subject: lib: add GENERIC_PCI_IOMAP
has been removed from the -mm tree. Its filename was
lib-add-generic_pci_iomap.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Subject: lib: add GENERIC_PCI_IOMAP
Many architectures want a generic pci_iomap but not the rest of iomap.c.
Split that to a separate .c file and add a new config symbol. select
automatically by GENERIC_IOMAP.
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Cc: Richard Henderson <rth@xxxxxxxxxxx>
Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>
Cc: Matt Turner <mattst88@xxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
Cc: Mikael Starvik <starvik@xxxxxxxx>
Cc: Jesper Nilsson <jesper.nilsson@xxxxxxxx>
Cc: Richard Kuo <rkuo@xxxxxxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Michal Simek <monstr@xxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Jonas Bonn <jonas@xxxxxxxxxxxx>
Cc: Kyle McMartin <kyle@xxxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Chen Liqin <liqin.chen@xxxxxxxxxxxxx>
Cc: Lennox Wu <lennox.wu@xxxxxxxxx>
Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Guan Xuetao <gxt@xxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Cc: Nicolas Pitre <nicolas.pitre@xxxxxxxxxx>
Cc: Paul Bolle <pebolle@xxxxxxxxxx>
Cc: Olof Johansson <olof@xxxxxxxxx>
Cc: Rob Herring <rob.herring@xxxxxxxxxxx>
Cc: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
Cc: Kumar Gala <galak@xxxxxxxxxxxxxxxxxxx>
Cc: Michael Ellerman <michael@xxxxxxxxxxxxxx>
Cc: Fabio Baltieri <fabio.baltieri@xxxxxxxxx>
Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxxxxxxx>
Cc: "John W. Linville" <linville@xxxxxxxxxxxxx>
Cc: Lasse Collin <lasse.collin@xxxxxxxxxxx>
Cc: Arend van Spriel <arend@xxxxxxxxxxxx>
Cc: Franky Lin <frankyl@xxxxxxxxxxxx>
Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/asm-generic/io.h | 5 +--
include/asm-generic/iomap.h | 7 +---
include/asm-generic/pci_iomap.h | 26 ++++++++++++++++
lib/Kconfig | 4 ++
lib/Makefile | 1
lib/iomap.c | 38 +----------------------
lib/pci_iomap.c | 48 ++++++++++++++++++++++++++++++
7 files changed, 85 insertions(+), 44 deletions(-)
diff -puN include/asm-generic/io.h~lib-add-generic_pci_iomap include/asm-generic/io.h
--- a/include/asm-generic/io.h~lib-add-generic_pci_iomap
+++ a/include/asm-generic/io.h
@@ -19,6 +19,8 @@
#include <asm-generic/iomap.h>
#endif
+#include <asm-generic/pci_iomap.h>
+
#ifndef mmiowb
#define mmiowb() do {} while (0)
#endif
@@ -283,9 +285,6 @@ static inline void writesb(const void __
#define __io_virt(x) ((void __force *) (x))
#ifndef CONFIG_GENERIC_IOMAP
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
-struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
{
}
diff -puN include/asm-generic/iomap.h~lib-add-generic_pci_iomap include/asm-generic/iomap.h
--- a/include/asm-generic/iomap.h~lib-add-generic_pci_iomap
+++ a/include/asm-generic/iomap.h
@@ -69,16 +69,13 @@ extern void ioport_unmap(void __iomem *)
#ifdef CONFIG_PCI
/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
#else
struct pci_dev;
-static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
- return NULL;
-}
static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{ }
#endif
+#include <asm-generic/pci_iomap.h>
+
#endif
diff -puN /dev/null include/asm-generic/pci_iomap.h
--- /dev/null
+++ a/include/asm-generic/pci_iomap.h
@@ -0,0 +1,26 @@
+/* Generic I/O port emulation, based on MN10300 code
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@xxxxxxxxxx)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef __ASM_GENERIC_PCI_IOMAP_H
+#define __ASM_GENERIC_PCI_IOMAP_H
+
+#ifdef CONFIG_PCI
+/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+struct pci_dev;
+extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
+#else
+struct pci_dev;
+static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+ return NULL;
+}
+#endif
+
+#endif /* __ASM_GENERIC_IO_H */
diff -puN lib/Kconfig~lib-add-generic_pci_iomap lib/Kconfig
--- a/lib/Kconfig~lib-add-generic_pci_iomap
+++ a/lib/Kconfig
@@ -19,8 +19,12 @@ config RATIONAL
config GENERIC_FIND_FIRST_BIT
bool
+config GENERIC_PCI_IOMAP
+ bool
+
config GENERIC_IOMAP
bool
+ select GENERIC_PCI_IOMAP
config CRC_CCITT
tristate "CRC-CCITT functions"
diff -puN lib/Makefile~lib-add-generic_pci_iomap lib/Makefile
--- a/lib/Makefile~lib-add-generic_pci_iomap
+++ a/lib/Makefile
@@ -34,6 +34,7 @@ endif
lib-$(CONFIG_HOTPLUG) += kobject_uevent.o
obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
+obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
diff -puN lib/iomap.c~lib-add-generic_pci_iomap lib/iomap.c
--- a/lib/iomap.c~lib-add-generic_pci_iomap
+++ a/lib/iomap.c
@@ -242,45 +242,11 @@ EXPORT_SYMBOL(ioport_unmap);
#endif /* CONFIG_HAS_IOPORT */
#ifdef CONFIG_PCI
-/**
- * pci_iomap - create a virtual mapping cookie for a PCI BAR
- * @dev: PCI device that owns the BAR
- * @bar: BAR number
- * @maxlen: length of the memory to map
- *
- * Using this function you will get a __iomem address to your device BAR.
- * You can access it using ioread*() and iowrite*(). These functions hide
- * the details if this is a MMIO or PIO address space and will just do what
- * you expect from them in the correct way.
- *
- * @maxlen specifies the maximum length to map. If you want to get access to
- * the complete BAR without checking for its length first, pass %0 here.
- * */
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
- resource_size_t start = pci_resource_start(dev, bar);
- resource_size_t len = pci_resource_len(dev, bar);
- unsigned long flags = pci_resource_flags(dev, bar);
-
- if (!len || !start)
- return NULL;
- if (maxlen && len > maxlen)
- len = maxlen;
- if (flags & IORESOURCE_IO)
- return ioport_map(start, len);
- if (flags & IORESOURCE_MEM) {
- if (flags & IORESOURCE_CACHEABLE)
- return ioremap(start, len);
- return ioremap_nocache(start, len);
- }
- /* What? */
- return NULL;
-}
-
+/* Hide the details if this is a MMIO or PIO address space and just do what
+ * you expect in the correct way. */
void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
{
IO_COND(addr, /* nothing */, iounmap(addr));
}
-EXPORT_SYMBOL(pci_iomap);
EXPORT_SYMBOL(pci_iounmap);
#endif /* CONFIG_PCI */
diff -puN /dev/null lib/pci_iomap.c
--- /dev/null
+++ a/lib/pci_iomap.c
@@ -0,0 +1,48 @@
+/*
+ * Implement the default iomap interfaces
+ *
+ * (C) Copyright 2004 Linus Torvalds
+ */
+#include <linux/pci.h>
+#include <linux/io.h>
+
+#include <linux/module.h>
+
+#ifdef CONFIG_PCI
+/**
+ * pci_iomap - create a virtual mapping cookie for a PCI BAR
+ * @dev: PCI device that owns the BAR
+ * @bar: BAR number
+ * @maxlen: length of the memory to map
+ *
+ * Using this function you will get a __iomem address to your device BAR.
+ * You can access it using ioread*() and iowrite*(). These functions hide
+ * the details if this is a MMIO or PIO address space and will just do what
+ * you expect from them in the correct way.
+ *
+ * @maxlen specifies the maximum length to map. If you want to get access to
+ * the complete BAR without checking for its length first, pass %0 here.
+ * */
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
+{
+ resource_size_t start = pci_resource_start(dev, bar);
+ resource_size_t len = pci_resource_len(dev, bar);
+ unsigned long flags = pci_resource_flags(dev, bar);
+
+ if (!len || !start)
+ return NULL;
+ if (maxlen && len > maxlen)
+ len = maxlen;
+ if (flags & IORESOURCE_IO)
+ return ioport_map(start, len);
+ if (flags & IORESOURCE_MEM) {
+ if (flags & IORESOURCE_CACHEABLE)
+ return ioremap(start, len);
+ return ioremap_nocache(start, len);
+ }
+ /* What? */
+ return NULL;
+}
+
+EXPORT_SYMBOL(pci_iomap);
+#endif /* CONFIG_PCI */
_
Patches currently in -mm which might be from mst@xxxxxxxxxx are
linux-next.patch
lib-add-generic_pci_iomap-v2.patch
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