From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/gpu/drm/nouveau/nvkm/subdev/timer/gk20a.c | 56 +++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/timer/gk20a.c (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/timer/gk20a.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/timer/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/timer/gk20a.c new file mode 100644 index 000000000..80e38063d --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/timer/gk20a.c @@ -0,0 +1,56 @@ +/* + * 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 "nv04.h" + +static int +gk20a_timer_init(struct nvkm_object *object) +{ + struct nv04_timer_priv *priv = (void *)object; + u32 hi = upper_32_bits(priv->suspend_time); + u32 lo = lower_32_bits(priv->suspend_time); + int ret; + + ret = nvkm_timer_init(&priv->base); + if (ret) + return ret; + + nv_debug(priv, "time low : 0x%08x\n", lo); + nv_debug(priv, "time high : 0x%08x\n", hi); + + /* restore the time before suspend */ + nv_wr32(priv, NV04_PTIMER_TIME_1, hi); + nv_wr32(priv, NV04_PTIMER_TIME_0, lo); + return 0; +} + +struct nvkm_oclass +gk20a_timer_oclass = { + .handle = NV_SUBDEV(TIMER, 0xff), + .ofuncs = &(struct nvkm_ofuncs) { + .ctor = nv04_timer_ctor, + .dtor = nv04_timer_dtor, + .init = gk20a_timer_init, + .fini = nv04_timer_fini, + } +}; -- cgit v1.2.3-54-g00ecf