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>

1 files changed, 7 insertions, 7 deletions

diff --git a/arch/sh/mm/ioremap_32.c b/arch/sh/mm/ioremap_32.c
index 7e04cc8f3b9b..da2f4186f2cd 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