fpga: dfl: afu: add AFU state related sysfs interfaces
authorWu Hao <hao.wu@intel.com>
Sun, 4 Aug 2019 10:20:13 +0000 (18:20 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 5 Aug 2019 15:56:47 +0000 (17:56 +0200)
commitd2ad5ac1cda7c30c9ded04d0e21aba528f1f96ec
treebdfa61f593a4cda717adc7aa35b1daea9bc22905
parentbdd4f307956ae7c80a831aed67b0ddd131537481
fpga: dfl: afu: add AFU state related sysfs interfaces

This patch introduces more sysfs interfaces for Accelerated
Function Unit (AFU). These interfaces allow users to read
current AFU Power State (APx), read / clear AFU Power (APx)
events which are sticky to identify transient APx state,
and manage AFU's LTR (latency tolerance reporting).

Signed-off-by: Ananda Ravuri <ananda.ravuri@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/1564914022-3710-4-git-send-email-hao.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Documentation/ABI/testing/sysfs-platform-dfl-port
drivers/fpga/dfl-afu-main.c
drivers/fpga/dfl.h