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| author | Venki Pallipadi <venkatesh.pallipadi@intel.com> | 2008-10-22 16:34:52 -0700 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-10-24 12:54:18 -0400 |
| commit | 3ad0b02e4c1d5feba44b8ff48dccd1ba61a826b0 (patch) | |
| tree | b674d7e805f9f53b2550f81009b5a860e5a4fc47 /drivers/dma | |
| parent | 27471fdb32e77ecb92f09d4ac5757785b4dc33bc (diff) | |
| download | linux-3.10-3ad0b02e4c1d5feba44b8ff48dccd1ba61a826b0.tar.gz linux-3.10-3ad0b02e4c1d5feba44b8ff48dccd1ba61a826b0.tar.bz2 linux-3.10-3ad0b02e4c1d5feba44b8ff48dccd1ba61a826b0.zip | |
i7300_idle: Disable ioat channel only on platforms where ile driver can load
Based on input from Andi Kleen:
share the platform detection code with ioat_dma and disable the channel in
dma engine only for specific platforms.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ioat_dma.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index f8396cafa05..fd1631d0a79 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -33,6 +33,7 @@ #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/workqueue.h> +#include <linux/i7300_idle.h> #include "ioatdma.h" #include "ioatdma_registers.h" #include "ioatdma_hw.h" @@ -172,7 +173,9 @@ static int ioat_dma_enumerate_channels(struct ioatdma_device *device) xfercap = (xfercap_scale == 0 ? -1 : (1UL << xfercap_scale)); #if CONFIG_I7300_IDLE_IOAT_CHANNEL - device->common.chancnt--; + if (i7300_idle_platform_probe(NULL, NULL) == 0) { + device->common.chancnt--; + } #endif for (i = 0; i < device->common.chancnt; i++) { ioat_chan = kzalloc(sizeof(*ioat_chan), GFP_KERNEL); |