renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2025-01-03 19:24:02 +08:00
Code

[POWERPC] Make pci_iounmap actually unmap things

Browse Source 
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>
This commit is contained in:
Benjamin Herrenschmidt 2007-07-26 14:07:13 +10:00 committed by Paul Mackerras
parent 6dfbde2091
commit 50747cb818
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/powerpc/kernel/iomap.c
View File

@ -7,6 +7,7 @@
#include <linux/pci.h> #include <linux/pci.h>
#include <linux/mm.h> #include <linux/mm.h>
#include <asm/io.h> #include <asm/io.h>
#include <asm/pci-bridge.h>
/* /*
* Here comes the ppc64 implementation of the IOMAP * 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) 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_iomap);
EXPORT_SYMBOL(pci_iounmap); EXPORT_SYMBOL(pci_iounmap);