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authorPaul Mundt <lethal@linux-sh.org>2009-04-20 18:24:57 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-04-20 18:24:57 +0900
commit99f95f117848088f2708b45c70be73152e78bb8a (patch)
treead2f71af24524c723d1a176be3269e48c0718118 /arch/sh/mm
parent0bb34a6bf1f71d5ad2abfda582a2c2794957bc7b (diff)
sh: pci: Rework fixed region checks in ioremap().
Not all PCI channels have non-translatable memory windows, this is a special property of the on-chip PCIC with its 0xfd00... mapping, handle this explicitly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/mm')
-rw-r--r--arch/sh/mm/ioremap_32.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/sh/mm/ioremap_32.c b/arch/sh/mm/ioremap_32.c
index 7e04cc8f3b9..da2f4186f2c 100644
--- a/arch/sh/mm/ioremap_32.c
+++ b/arch/sh/mm/ioremap_32.c
@@ -46,17 +46,15 @@ void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
return NULL;
/*
- * If we're on an SH7751 or SH7780 PCI controller, PCI memory is
- * mapped at the end of the address space (typically 0xfd000000)
- * in a non-translatable area, so mapping through page tables for
- * this area is not only pointless, but also fundamentally
- * broken. Just return the physical address instead.
+ * If we're in the fixed PCI memory range, mapping through page
+ * tables is not only pointless, but also fundamentally broken.
+ * Just return the physical address instead.
*
* For boards that map a small PCI memory aperture somewhere in
* P1/P2 space, ioremap() will already do the right thing,
* and we'll never get this far.
*/
- if (__is_pci_memory(phys_addr, size))
+ if (is_pci_memory_fixed_range(phys_addr, size))
return (void __iomem *)phys_addr;
#if !defined(CONFIG_PMB_FIXED)
@@ -121,7 +119,9 @@ void __iounmap(void __iomem *addr)
unsigned long seg = PXSEG(vaddr);
struct vm_struct *p;
- if (seg < P3SEG || vaddr >= P3_ADDR_MAX || __is_pci_memory(vaddr, 0))
+ if (seg < P3SEG || vaddr >= P3_ADDR_MAX)
+ return;
+ if (is_pci_memory_fixed_range(vaddr, 0))
return;
#ifdef CONFIG_PMB