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Commit fcb71f6f authored by FD Cami's avatar FD Cami Committed by Jeff Garzik
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Update kernel parameter document for libata DMA mode setting knobs. 

Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 4ccd3329
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Documentation/kernel-parameters.txt
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...@@ -883,6 +883,14 @@ and is between 256 and 4096 characters. It is defined in the file ...@@ -883,6 +883,14 @@ and is between 256 and 4096 characters. It is defined in the file
lapic_timer_c2_ok [X86-32,x86-64,APIC] trust the local apic timer in lapic_timer_c2_ok [X86-32,x86-64,APIC] trust the local apic timer in
C2 power state. C2 power state.
libata.dma= [LIBATA] DMA control
libata.dma=0 Disable all PATA and SATA DMA
libata.dma=1 PATA and SATA Disk DMA only
libata.dma=2 ATAPI (CDROM) DMA only
libata.dma=4 Compact Flash DMA only
Combinations also work, so libata.dma=3 enables DMA
for disks and CDROMs, but not CFs.
libata.noacpi [LIBATA] Disables use of ACPI in libata suspend/resume libata.noacpi [LIBATA] Disables use of ACPI in libata suspend/resume
when set. when set.
Format: <int> Format: <int>
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