powerpc: switch to GENERIC_PCI_IOMAP

powerpc 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.

The only difference is handling of nocache flag,
that turns out to be done correctly by the
generic code since arch/powerpc/include/asm/io.h
defines ioremap_nocache same as ioremap.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

2 files changed, 1 insertions, 19 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 951e18f5335b..6ffe3df3e57c 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -710,6 +710,7 @@ config PCI
         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
         default PCI_QSPAN if !4xx && !CPM2 && 8xx
         select ARCH_SUPPORTS_MSI
+        select GENERIC_PCI_IOMAP
         help
           Find out whether your system includes a PCI bus. PCI is the name of
           a bus system, i.e. the way the CPU talks to the other stuff inside
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index 262791807397..97a3715ac8bd 100644
--- a/arch/powerpc/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
@@ -119,24 +119,6 @@ EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
 
 #ifdef CONFIG_PCI
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-        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)
-                return NULL;
-        if (max && len > max)
-                len = max;
-        if (flags & IORESOURCE_IO)
-                return ioport_map(start, len);
-        if (flags & IORESOURCE_MEM)
-                return ioremap(start, len);
-        /* What? */
-        return NULL;
-}
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
         if (isa_vaddr_is_ioport(addr))
@@ -146,6 +128,5 @@ void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
         iounmap(addr);
 }
 
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
 #endif /* CONFIG_PCI */