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authorPavel Machek <pavel@ucw.cz>2008-03-19 15:58:11 +0100
committerIngo Molnar <mingo@elte.hu>2008-04-17 17:40:59 +0200
commitb552da8740222c35bcd83c9be7b27185bfb6d53c (patch)
treea70bc63a224d850ecf6935d9bb8a508d8f4764d2 /arch
parent037cab07e9515149fecc2274775807f06ea6b036 (diff)
x86 iommu: add more documentation
Fix coding style in pci-dma_64.c and add stubs for documentation. I hope someone fills the rest, I understand maybe off and soft... Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/pci-dma_64.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/arch/x86/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c
index 375cb2bc45b..ada5a060499 100644
--- a/arch/x86/kernel/pci-dma_64.c
+++ b/arch/x86/kernel/pci-dma_64.c
@@ -232,32 +232,32 @@ static __init int iommu_setup(char *p)
return -EINVAL;
while (*p) {
- if (!strncmp(p,"off",3))
+ if (!strncmp(p, "off", 3))
no_iommu = 1;
/* gart_parse_options has more force support */
- if (!strncmp(p,"force",5))
+ if (!strncmp(p, "force", 5))
force_iommu = 1;
- if (!strncmp(p,"noforce",7)) {
+ if (!strncmp(p, "noforce", 7)) {
iommu_merge = 0;
force_iommu = 0;
}
- if (!strncmp(p, "biomerge",8)) {
+ if (!strncmp(p, "biomerge", 8)) {
iommu_bio_merge = 4096;
iommu_merge = 1;
force_iommu = 1;
}
- if (!strncmp(p, "panic",5))
+ if (!strncmp(p, "panic", 5))
panic_on_overflow = 1;
- if (!strncmp(p, "nopanic",7))
+ if (!strncmp(p, "nopanic", 7))
panic_on_overflow = 0;
- if (!strncmp(p, "merge",5)) {
+ if (!strncmp(p, "merge", 5)) {
iommu_merge = 1;
force_iommu = 1;
}
- if (!strncmp(p, "nomerge",7))
+ if (!strncmp(p, "nomerge", 7))
iommu_merge = 0;
- if (!strncmp(p, "forcesac",8))
+ if (!strncmp(p, "forcesac", 8))
iommu_sac_force = 1;
if (!strncmp(p, "allowdac", 8))
forbid_dac = 0;
@@ -265,7 +265,7 @@ static __init int iommu_setup(char *p)
forbid_dac = -1;
#ifdef CONFIG_SWIOTLB
- if (!strncmp(p, "soft",4))
+ if (!strncmp(p, "soft", 4))
swiotlb = 1;
#endif