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arm: switch to GENERIC_PCI_IOMAP 

arm 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 20:57:23 +02:00
parent f2971c4c31
commit e5bfb72ce2
3 changed files with 2 additions and 22 deletions
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1
arch/arm/Kconfig
View File

@ -30,6 +30,7 @@ config ARM
select HAVE_SPARSE_IRQ select HAVE_SPARSE_IRQ
select GENERIC_IRQ_SHOW select GENERIC_IRQ_SHOW
select CPU_PM if (SUSPEND || CPU_IDLE) select CPU_PM if (SUSPEND || CPU_IDLE)
select GENERIC_PCI_IOMAP
help help
The ARM series is a line of low-power-consumption RISC chip designs The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and licensed by ARM Ltd and targeted at embedded applications and

2
arch/arm/include/asm/io.h
View File

@ -27,6 +27,7 @@
#include <asm/byteorder.h> #include <asm/byteorder.h>
#include <asm/memory.h> #include <asm/memory.h>
#include <asm/system.h> #include <asm/system.h>
#include <asm-generic/pci_iomap.h>
/* /*
* ISA I/O bus memory addresses are 1:1 with the physical address. * ISA I/O bus memory addresses are 1:1 with the physical address.
@ -306,7 +307,6 @@ extern void ioport_unmap(void __iomem *addr);
struct pci_dev; struct pci_dev;
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen);
extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr); extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr);
/* /*

21
arch/arm/mm/iomap.c
View File

@ -35,27 +35,6 @@ EXPORT_SYMBOL(pcibios_min_mem);
unsigned int pci_flags = PCI_REASSIGN_ALL_RSRC; unsigned int pci_flags = PCI_REASSIGN_ALL_RSRC;
EXPORT_SYMBOL(pci_flags); EXPORT_SYMBOL(pci_flags);
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);
}
return NULL;
}
EXPORT_SYMBOL(pci_iomap);
void pci_iounmap(struct pci_dev *dev, void __iomem *addr) void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{ {
if ((unsigned long)addr >= VMALLOC_START && if ((unsigned long)addr >= VMALLOC_START &&