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1/*2 * Copyright 2012 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */24#include "nv50.h"25 26#include <core/gpuobj.h>27#include <engine/disp.h>28#include <engine/fifo/chan.h>29#include <subdev/bar.h>30 31#include <nvif/class.h>32#include <nvif/event.h>33 34/*******************************************************************************35 * software context36 ******************************************************************************/37 38static int39nv50_sw_chan_vblsem_release(struct nvkm_event_ntfy *notify, u32 bits)40{41 struct nv50_sw_chan *chan =42 container_of(notify, typeof(*chan), vblank.notify[notify->id]);43 struct nvkm_sw *sw = chan->base.sw;44 struct nvkm_device *device = sw->engine.subdev.device;45 46 nvkm_wr32(device, 0x001704, chan->base.fifo->inst->addr >> 12);47 nvkm_wr32(device, 0x001710, 0x80000000 | chan->vblank.ctxdma);48 nvkm_bar_flush(device->bar);49 50 if (device->chipset == 0x50) {51 nvkm_wr32(device, 0x001570, chan->vblank.offset);52 nvkm_wr32(device, 0x001574, chan->vblank.value);53 } else {54 nvkm_wr32(device, 0x060010, chan->vblank.offset);55 nvkm_wr32(device, 0x060014, chan->vblank.value);56 }57 58 return NVKM_EVENT_DROP;59}60 61static bool62nv50_sw_chan_mthd(struct nvkm_sw_chan *base, int subc, u32 mthd, u32 data)63{64 struct nv50_sw_chan *chan = nv50_sw_chan(base);65 struct nvkm_engine *engine = chan->base.object.engine;66 struct nvkm_device *device = engine->subdev.device;67 switch (mthd) {68 case 0x018c: chan->vblank.ctxdma = data; return true;69 case 0x0400: chan->vblank.offset = data; return true;70 case 0x0404: chan->vblank.value = data; return true;71 case 0x0408:72 if (data < device->disp->vblank.index_nr) {73 nvkm_event_ntfy_allow(&chan->vblank.notify[data]);74 return true;75 }76 break;77 default:78 break;79 }80 return false;81}82 83void *84nv50_sw_chan_dtor(struct nvkm_sw_chan *base)85{86 struct nv50_sw_chan *chan = nv50_sw_chan(base);87 int i;88 89 for (i = 0; i < ARRAY_SIZE(chan->vblank.notify); i++)90 nvkm_event_ntfy_del(&chan->vblank.notify[i]);91 92 return chan;93}94 95static const struct nvkm_sw_chan_func96nv50_sw_chan = {97 .dtor = nv50_sw_chan_dtor,98 .mthd = nv50_sw_chan_mthd,99};100 101static int102nv50_sw_chan_new(struct nvkm_sw *sw, struct nvkm_chan *fifoch,103 const struct nvkm_oclass *oclass, struct nvkm_object **pobject)104{105 struct nvkm_disp *disp = sw->engine.subdev.device->disp;106 struct nv50_sw_chan *chan;107 int ret, i;108 109 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))110 return -ENOMEM;111 *pobject = &chan->base.object;112 113 ret = nvkm_sw_chan_ctor(&nv50_sw_chan, sw, fifoch, oclass, &chan->base);114 if (ret)115 return ret;116 117 for (i = 0; disp && i < disp->vblank.index_nr; i++) {118 nvkm_event_ntfy_add(&disp->vblank, i, NVKM_DISP_HEAD_EVENT_VBLANK, true,119 nv50_sw_chan_vblsem_release, &chan->vblank.notify[i]);120 }121 122 return 0;123}124 125/*******************************************************************************126 * software engine/subdev functions127 ******************************************************************************/128 129static const struct nvkm_sw_func130nv50_sw = {131 .chan_new = nv50_sw_chan_new,132 .sclass = {133 { nvkm_nvsw_new, { -1, -1, NVIF_CLASS_SW_NV50 } },134 {}135 }136};137 138int139nv50_sw_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_sw **psw)140{141 return nvkm_sw_new_(&nv50_sw, device, type, inst, psw);142}143