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| author | Joerg Roedel <joerg.roedel@amd.com> | 2009-05-22 23:49:51 +0400 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-06-02 18:21:41 +0400 |
| commit | 1745de5e5639457513fe43440f2800e23c3cbc7d (patch) | |
| tree | 0323bd8756c0b42060724ce282facce2a885c9a2 /Documentation | |
| parent | 8a6fc708b9bb48a79a385bdc2be0959ee2ab788d (diff) | |
| download | linux-1745de5e5639457513fe43440f2800e23c3cbc7d.tar.xz | |
dma-debug: add dma_debug_driver kernel command line
This patch add the dma_debug_driver= boot parameter to enable the driver
filter for early boot.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index e87bdbfbcc75..b3f1314588c9 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -646,6 +646,13 @@ and is between 256 and 4096 characters. It is defined in the file DMA-API debugging code disables itself because the architectural default is too low. + dma_debug_driver=<driver_name> + With this option the DMA-API debugging driver + filter feature can be enabled at boot time. Just + pass the driver to filter for as the parameter. + The filter can be disabled or changed to another + driver later using sysfs. + dscc4.setup= [NET] dtc3181e= [HW,SCSI] |