Searched hist:baa6d396 (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/include/linux/fpga/ |
| H A D | fpga-mgr.h | baa6d396 Wed Feb 01 13:48:44 CST 2017 Jason Gunthorpe <jgunthorpe@obsidianresearch.com> fpga: Add scatterlist based programming
Requiring contiguous kernel memory is not a good idea, this is a limited
resource and allocation can fail under normal work loads.
This introduces a .write_sg op that supporting drivers can provide
to DMA directly from dis-contiguous memory and a new entry point
fpga_mgr_buf_load_sg that users can call to directly provide page
lists.
The full matrix of compatibility is provided, either the linear or sg
interface can be used by the user with a driver supporting either
interface.
A notable change for drivers is that the .write op can now be called
multiple times.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Acked-by: Alan Tull <atull@opensource.altera.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
baa6d396 Wed Feb 01 13:48:44 CST 2017 Jason Gunthorpe <jgunthorpe@obsidianresearch.com> fpga: Add scatterlist based programming
Requiring contiguous kernel memory is not a good idea, this is a limited
resource and allocation can fail under normal work loads.
This introduces a .write_sg op that supporting drivers can provide
to DMA directly from dis-contiguous memory and a new entry point
fpga_mgr_buf_load_sg that users can call to directly provide page
lists.
The full matrix of compatibility is provided, either the linear or sg
interface can be used by the user with a driver supporting either
interface.
A notable change for drivers is that the .write op can now be called
multiple times.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Acked-by: Alan Tull <atull@opensource.altera.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| /openbmc/linux/drivers/fpga/ |
| H A D | fpga-mgr.c | baa6d396 Wed Feb 01 13:48:44 CST 2017 Jason Gunthorpe <jgunthorpe@obsidianresearch.com> fpga: Add scatterlist based programming
Requiring contiguous kernel memory is not a good idea, this is a limited
resource and allocation can fail under normal work loads.
This introduces a .write_sg op that supporting drivers can provide
to DMA directly from dis-contiguous memory and a new entry point
fpga_mgr_buf_load_sg that users can call to directly provide page
lists.
The full matrix of compatibility is provided, either the linear or sg
interface can be used by the user with a driver supporting either
interface.
A notable change for drivers is that the .write op can now be called
multiple times.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Acked-by: Alan Tull <atull@opensource.altera.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
baa6d396 Wed Feb 01 13:48:44 CST 2017 Jason Gunthorpe <jgunthorpe@obsidianresearch.com> fpga: Add scatterlist based programming
Requiring contiguous kernel memory is not a good idea, this is a limited
resource and allocation can fail under normal work loads.
This introduces a .write_sg op that supporting drivers can provide
to DMA directly from dis-contiguous memory and a new entry point
fpga_mgr_buf_load_sg that users can call to directly provide page
lists.
The full matrix of compatibility is provided, either the linear or sg
interface can be used by the user with a driver supporting either
interface.
A notable change for drivers is that the .write op can now be called
multiple times.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Acked-by: Alan Tull <atull@opensource.altera.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|