From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../gpu/drm/nouveau/nvkm/subdev/timer/base.c | 93 ++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 kernel/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c (limited to 'kernel/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c') diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c new file mode 100644 index 000000000..d894061ce --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c @@ -0,0 +1,93 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ +#include + +bool +nvkm_timer_wait_eq(void *obj, u64 nsec, u32 addr, u32 mask, u32 data) +{ + struct nvkm_timer *ptimer = nvkm_timer(obj); + u64 time0; + + time0 = ptimer->read(ptimer); + do { + if (nv_iclass(obj, NV_SUBDEV_CLASS)) { + if ((nv_rd32(obj, addr) & mask) == data) + return true; + } else { + if ((nv_ro32(obj, addr) & mask) == data) + return true; + } + } while (ptimer->read(ptimer) - time0 < nsec); + + return false; +} + +bool +nvkm_timer_wait_ne(void *obj, u64 nsec, u32 addr, u32 mask, u32 data) +{ + struct nvkm_timer *ptimer = nvkm_timer(obj); + u64 time0; + + time0 = ptimer->read(ptimer); + do { + if (nv_iclass(obj, NV_SUBDEV_CLASS)) { + if ((nv_rd32(obj, addr) & mask) != data) + return true; + } else { + if ((nv_ro32(obj, addr) & mask) != data) + return true; + } + } while (ptimer->read(ptimer) - time0 < nsec); + + return false; +} + +bool +nvkm_timer_wait_cb(void *obj, u64 nsec, bool (*func)(void *), void *data) +{ + struct nvkm_timer *ptimer = nvkm_timer(obj); + u64 time0; + + time0 = ptimer->read(ptimer); + do { + if (func(data) == true) + return true; + } while (ptimer->read(ptimer) - time0 < nsec); + + return false; +} + +void +nvkm_timer_alarm(void *obj, u32 nsec, struct nvkm_alarm *alarm) +{ + struct nvkm_timer *ptimer = nvkm_timer(obj); + ptimer->alarm(ptimer, nsec, alarm); +} + +void +nvkm_timer_alarm_cancel(void *obj, struct nvkm_alarm *alarm) +{ + struct nvkm_timer *ptimer = nvkm_timer(obj); + ptimer->alarm_cancel(ptimer, alarm); +} -- cgit 1.2.3-korg