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sparc: switch to GENERIC_PCI_IOMAP

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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>
This commit is contained in:
Michael S. Tsirkin 2011-11-24 21:10:12 +02:00
parent 43db595e8b
commit a21a2fd403
4 changed files with 3 additions and 25 deletions
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1
arch/sparc/Kconfig
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@ -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

2
arch/sparc/include/asm/io_32.h
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@ -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 *);
/*

2
arch/sparc/include/asm/io_64.h
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@ -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)

23
arch/sparc/lib/iomap.c
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@ -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);