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Subjectaperture_64.c: cleanups

Some small cleanups for aperture_64.c; they should not really change
any code.

Signed-off-by: Pavel Machek <pavel@suse.cz>

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 4a3d8cf..2088b6a 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -1,8 +1,9 @@
/*
* Firmware replacement code.
*
- * Work around broken BIOSes that don't set an aperture or only set the
- * aperture in the AGP bridge.
+ * Work around broken BIOSes that don't set an aperture, only set the
+ * aperture in the AGP bridge, or set too small aperture.
+ *
* If all fails map the aperture over some low memory. This is cheaper than
* doing bounce buffering. The memory is lost. This is done at early boot
* because only the bootmem allocator can allocate 32+MB.
@@ -93,7 +94,7 @@ static int __init aperture_valid(u64 ape
}

/* Find a PCI capability */
-static __u32 __init find_cap(int num, int slot, int func, int cap)
+static u32 __init find_cap(int num, int slot, int func, int cap)
{
int bytes;
u8 pos;
@@ -119,7 +120,7 @@ static __u32 __init find_cap(int num, in
}

/* Read a standard AGPv3 bridge header */
-static __u32 __init read_agp(int num, int slot, int func, int cap, u32 *order)
+static u32 __init read_agp(int num, int slot, int func, int cap, u32 *order)
{
u32 apsize;
u32 apsizereg;
@@ -168,7 +169,7 @@ static __u32 __init read_agp(int num, in
* the AGP bridges should be always an own bus on the HT hierarchy,
* but do it here for future safety.
*/
-static __u32 __init search_agp_bridge(u32 *order, int *valid_agp)
+static u32 __init search_agp_bridge(u32 *order, int *valid_agp)
{
int num, slot, func;

@@ -383,6 +387,7 @@ void __init gart_iommu_hole_init(void)
* early.
*/
panic("Not enough memory for aperture");
+ /* Could we fall back to iommu=soft here? */
}
} else {
return;
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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