Vinod Koul
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0b5ad7b952
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Merge branch 'for-linus' into fixes
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Conflicts:
drivers/dma/idxd/sysfs.c
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2020-08-05 19:02:07 +05:30 |
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Dave Jiang
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1a0c02ba64
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dmaengine: idxd: add missing invalid flags field to completion
Add missing "invalid flags" field to completion record struct.
Reported-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/159526025819.49266.13176787210106133664.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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2020-07-27 14:38:05 +05:30 |
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Dave Jiang
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0b8975bdc0
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dmaengine: idxd: fix hw descriptor fields for delta record
Fix the hw descriptor fields for delta record in user exported idxd.h
header. Missing the "expected result mask" field.
Reported-by: Mona Hossain <mona.hossain@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/159120526866.65385.536565786678052944.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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2020-06-24 11:53:34 +05:30 |
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Tony Luck
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7c4a4d0882
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dmaengine: idxd: Merge definition of dsa_batch_desc into dsa_hw_desc
We don't need a special structure just for batch descriptors. The
layout matches the general form for other descriptors.
Merge the desc_list_addr field into the union of other aliases for
the the third quadword in the structure.
Create a union to alias "xfer_size" with "desc_count".
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/158387868208.35922.5895104426944263789.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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2020-03-11 15:08:52 +05:30 |
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Dave Jiang
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bfe1d56091
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dmaengine: idxd: Init and probe for Intel data accelerators
The idxd driver introduces the Intel Data Stream Accelerator [1] that will
be available on future Intel Xeon CPUs. One of the kernel access
point for the driver is through the dmaengine subsystem. It will initially
provide the DMA copy service to the kernel.
Some of the main functionality introduced with this accelerator
are: shared virtual memory (SVM) support, and descriptor submission using
Intel CPU instructions movdir64b and enqcmds. There will be additional
accelerator devices that share the same driver with variations to
capabilities.
This commit introduces the probe and initialization component of the
driver.
[1]: https://software.intel.com/en-us/download/intel-data-streaming-accelerator-preliminary-architecture-specification
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/157965023991.73301.6186843973135311580.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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2020-01-24 11:18:45 +05:30 |
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