diff options
| author | Srikanth Thokala <sthokal@xilinx.com> | 2013-11-08 22:55:48 +0530 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2013-11-22 17:03:20 -0600 |
| commit | a5144237ac6dce3a38a73a51c217636a37d1e0b6 (patch) | |
| tree | b2c094865cd1f7f89350995e438862975d04692f /board/gdsys | |
| parent | f27f3b5266d28b8d3e80e0e8f4cafdd14268b62a (diff) | |
net: zynq_gem: Add d-cache support
Added d-cache support for zynq_gem.c,
Observed a difference of +0.8 MiB/s when downloading
a file of size of 3007944Bytes.
With d-cache OFF:
----------------
Filename 'uImage'.
Load address: 0x800
Loading: #################################################################
#################################################################
#################################################################
##########
1.3 MiB/s
done
Bytes transferred = 3007944 (2de5c8 hex)
With d-cache ON:
---------------
Filename 'uImage'.
Load address: 0x800
Loading: #################################################################
#################################################################
#################################################################
##########
2.1 MiB/s
done
Bytes transferred = 3007944 (2de5c8 hex)
Changes on zynq_gem for d-cache support:
- Tx and Rx buffers are cache-aligned
- Updated logic for invalidating Rx buffers and flushing Tx buffers.
- Tx and Rx BD's are allocated from non-cacheable region.
(When BDs are cached, we don't see a consistent link)
- Use TX BD status intead of txsr status checks.
Signed-off-by: Srikanth Thokala <sthokal@xilinx.com>
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'board/gdsys')
0 files changed, 0 insertions, 0 deletions