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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2007-07-26 14:07:13 +1000
committerPaul Mackerras <paulus@samba.org>2007-07-26 16:17:48 +1000
commit50747cb8189d54369d75e1bd73f84db431d39af8 (patch)
treee82c3c58743f1c6a545b7336656fcca2fed6f64a /arch/powerpc
parent6dfbde209171cd15407e7540d363a434a489aaca (diff)
[POWERPC] Make pci_iounmap actually unmap things
This patch uses the newly added functions for testing if an address is an ISA or PCI IO port to properly unmap things in pci_iounmap that aren't such ports. Without that, drivers using the iomap API will never actually unmap resources, which on IBM server machines will prevent hot-unplug of the corresponding HW adapters. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/iomap.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index 601ef79a591..2a5cf868037 100644
--- a/arch/powerpc/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
@@ -7,6 +7,7 @@
#include <linux/pci.h>
#include <linux/mm.h>
#include <asm/io.h>
+#include <asm/pci-bridge.h>
/*
* Here comes the ppc64 implementation of the IOMAP
@@ -136,7 +137,12 @@ void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{
- /* Nothing to do */
+ if (isa_vaddr_is_ioport(addr))
+ return;
+ if (pcibios_vaddr_is_ioport(addr))
+ return;
+ iounmap(addr);
}
+
EXPORT_SYMBOL(pci_iomap);
EXPORT_SYMBOL(pci_iounmap);