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authorMatan Barak <matanb@mellanox.com>2015-06-11 16:35:26 +0300
committerDoug Ledford <dledford@redhat.com>2015-06-12 21:49:10 +0300
commit52033cfb5aab2a54e238e93c9e52f61c2c5708aa (patch)
tree2fa1c99afee51a719b168c7b3175cdce25bb4090 /tools/perf/scripts
parent2528e33e680921d95092f83c4a64046744f111b3 (diff)
downloadlinux-52033cfb5aab2a54e238e93c9e52f61c2c5708aa.tar.xz
IB/mlx4: Add mmap call to map the hardware clock
In order to read the HCA's cycle counter efficiently in user space, we need to map the HCA's register. This is done through mmap call. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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