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authorPavel Machek <pavel@suse.cz>2008-11-26 17:15:27 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-28 15:24:39 +0100
commit8caac56305cef98f9357b060a77939d17699937d (patch)
treea6ce29a9a5e50ba212c532bb095cb1ba0aabcc11 /arch/x86/kernel/aperture_64.c
parent1d9b16d1690fe5edb1c907fe4746681cf026cdf3 (diff)
aperture_64.c: clarify that too small aperture is valid reason for this code
Impact: update comment Clarify that too small aperture is valid reason for this code. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/aperture_64.c')
-rw-r--r--arch/x86/kernel/aperture_64.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 9a32b37ee2e..676debfc170 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.