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authorSrikanth Thokala <sthokal@xilinx.com>2013-11-08 22:55:48 +0530
committerJoe Hershberger <joe.hershberger@ni.com>2013-11-22 17:03:20 -0600
commita5144237ac6dce3a38a73a51c217636a37d1e0b6 (patch)
treeb2c094865cd1f7f89350995e438862975d04692f /include/universe.h
parentf27f3b5266d28b8d3e80e0e8f4cafdd14268b62a (diff)
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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 'include/universe.h')
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