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>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 44789eff983f444c22cd967cbe418f7e50159358..2ebf66b8008ff07754bfe0bac8faf1f35cbabf0a 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -30,6 +30,7 @@ config ARM
        select HAVE_SPARSE_IRQ
        select GENERIC_IRQ_SHOW
        select CPU_PM if (SUSPEND || CPU_IDLE)
+       select GENERIC_PCI_IOMAP
        help
          The ARM series is a line of low-power-consumption RISC chip designs
          licensed by ARM Ltd and targeted at embedded applications and

diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 065d100fa63e7d608f49d3ef7f3a629d86cfe057..9275828feb3df24f481934a080572f8d53be3136 100644 (file)
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -27,6 +27,7 @@
 #include <asm/byteorder.h>
 #include <asm/memory.h>
 #include <asm/system.h>
+#include <asm-generic/pci_iomap.h>
 
 /*
  * 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;
 
-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);
 
 /*

diff --git a/arch/arm/mm/iomap.c b/arch/arm/mm/iomap.c
index 430df1a5978d04d198a88f2448c8a2de67c7e963..e62956e1203094bc6daa022486b93bd490c70057 100644 (file)
--- a/arch/arm/mm/iomap.c
+++ b/arch/arm/mm/iomap.c
@@ -35,27 +35,6 @@ EXPORT_SYMBOL(pcibios_min_mem);
 unsigned int pci_flags = PCI_REASSIGN_ALL_RSRC;
 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)
 {
        if ((unsigned long)addr >= VMALLOC_START &&