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Subject[PATCHv2 RFC (repost) 10/16] sparc: switch to GENERIC_PCI_IOMAP
sparc copied pci_iomap from generic code, probably to avoid
pulling the rest of iomap.c in. Since that's in
a separate file now, we can reuse the common implementation.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
---
arch/sparc/Kconfig | 1 +
arch/sparc/include/asm/io_32.h | 2 +-
arch/sparc/include/asm/io_64.h | 2 +-
arch/sparc/lib/iomap.c | 23 -----------------------
4 files changed, 3 insertions(+), 25 deletions(-)

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index f92602e..a4644f5 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -28,6 +28,7 @@ config SPARC
select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW
select USE_GENERIC_SMP_HELPERS if SMP
+ select GENERIC_PCI_IOMAP

config SPARC32
def_bool !64BIT
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index c2ced21..2006e5d 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -7,6 +7,7 @@

#include <asm/page.h> /* IO address mapping routines need this */
#include <asm/system.h>
+#include <asm-generic/pci_iomap.h>

#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)

@@ -324,7 +325,6 @@ extern void ioport_unmap(void __iomem *);

/* 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 *);

/*
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 9c89654..9481e5a 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -8,6 +8,7 @@
#include <asm/page.h> /* IO address mapping routines need this */
#include <asm/system.h>
#include <asm/asi.h>
+#include <asm-generic/pci_iomap.h>

/* PC crapola... */
#define __SLOW_DOWN_IO do { } while (0)
@@ -514,7 +515,6 @@ extern void ioport_unmap(void __iomem *);

/* 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 *);

static inline int sbus_can_dma_64bit(void)
diff --git a/arch/sparc/lib/iomap.c b/arch/sparc/lib/iomap.c
index 9ef37e1..c4d42a5 100644
--- a/arch/sparc/lib/iomap.c
+++ b/arch/sparc/lib/iomap.c
@@ -18,31 +18,8 @@ void ioport_unmap(void __iomem *addr)
EXPORT_SYMBOL(ioport_map);
EXPORT_SYMBOL(ioport_unmap);

-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
-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;
-}
-
void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
{
/* nothing to do */
}
-EXPORT_SYMBOL(pci_iomap);
EXPORT_SYMBOL(pci_iounmap);
--
1.7.8.382.g3daff


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