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authorMichael S. Tsirkin <mst@redhat.com>2011-11-24 20:45:20 +0200
committerMichael S. Tsirkin <mst@redhat.com>2011-11-28 21:12:42 +0200
commit66eab4df288aaee75938ae99877c4f759fc6d56c (patch)
tree0b663bfe2d464a55c2a85b27140a53b32f261542 /include/asm-generic/pci_iomap.h
parent4673ca8eb3690832e76371371955a8b02e1f59d4 (diff)
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@redhat.com>
Diffstat (limited to 'include/asm-generic/pci_iomap.h')
-rw-r--r--include/asm-generic/pci_iomap.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h
new file mode 100644
index 000000000000..8de4b73e19e2
--- /dev/null
+++ b/include/asm-generic/pci_iomap.h
@@ -0,0 +1,25 @@
+/* Generic I/O port emulation, based on MN10300 code
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * 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
+
+struct pci_dev;
+#ifdef CONFIG_PCI
+/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
+#else
+static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+ return NULL;
+}
+#endif
+
+#endif /* __ASM_GENERIC_IO_H */