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authorJoerg Roedel <joerg.roedel@amd.com>2009-01-09 13:01:56 +0100
committerJoerg Roedel <joerg.roedel@amd.com>2009-03-05 20:35:16 +0100
commit59d3daafa17265f01149df8eab3fb69b9b42cb2e (patch)
treeb4c0f3525f976dd5ec37730dee76ed227dcd25d5 /Documentation/kernel-parameters.txt
parent6bf078715c1998d4d10716251cc10ce45908594c (diff)
downloadlinux-59d3daafa17265f01149df8eab3fb69b9b42cb2e.tar.bz2
dma-debug: add kernel command line parameters
Impact: add dma_debug= and dma_debug_entries= kernel parameters Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 54f21a5c262b..0fa3c0545994 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -491,6 +491,16 @@ and is between 256 and 4096 characters. It is defined in the file
Range: 0 - 8192
Default: 64
+ dma_debug=off If the kernel is compiled with DMA_API_DEBUG support
+ this option disables the debugging code at boot.
+
+ dma_debug_entries=<number>
+ This option allows to tune the number of preallocated
+ entries for DMA-API debugging code. One entry is
+ required per DMA-API allocation. Use this if the
+ DMA-API debugging code disables itself because the
+ architectural default is too low.
+
hpet= [X86-32,HPET] option to control HPET usage
Format: { enable (default) | disable | force }
disable: disable HPET and use PIT instead