143 lines
4.2 KiB
C
143 lines
4.2 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "nv50.h"
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#include <core/gpuobj.h>
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#include <engine/disp.h>
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#include <engine/fifo/chan.h>
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#include <subdev/bar.h>
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#include <nvif/class.h>
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#include <nvif/event.h>
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/*******************************************************************************
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* software context
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******************************************************************************/
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static int
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nv50_sw_chan_vblsem_release(struct nvkm_event_ntfy *notify, u32 bits)
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{
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struct nv50_sw_chan *chan =
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container_of(notify, typeof(*chan), vblank.notify[notify->id]);
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struct nvkm_sw *sw = chan->base.sw;
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struct nvkm_device *device = sw->engine.subdev.device;
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nvkm_wr32(device, 0x001704, chan->base.fifo->inst->addr >> 12);
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nvkm_wr32(device, 0x001710, 0x80000000 | chan->vblank.ctxdma);
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nvkm_bar_flush(device->bar);
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if (device->chipset == 0x50) {
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nvkm_wr32(device, 0x001570, chan->vblank.offset);
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nvkm_wr32(device, 0x001574, chan->vblank.value);
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} else {
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nvkm_wr32(device, 0x060010, chan->vblank.offset);
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nvkm_wr32(device, 0x060014, chan->vblank.value);
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}
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return NVKM_EVENT_DROP;
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}
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static bool
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nv50_sw_chan_mthd(struct nvkm_sw_chan *base, int subc, u32 mthd, u32 data)
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{
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struct nv50_sw_chan *chan = nv50_sw_chan(base);
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struct nvkm_engine *engine = chan->base.object.engine;
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struct nvkm_device *device = engine->subdev.device;
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switch (mthd) {
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case 0x018c: chan->vblank.ctxdma = data; return true;
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case 0x0400: chan->vblank.offset = data; return true;
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case 0x0404: chan->vblank.value = data; return true;
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case 0x0408:
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if (data < device->disp->vblank.index_nr) {
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nvkm_event_ntfy_allow(&chan->vblank.notify[data]);
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return true;
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}
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break;
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default:
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break;
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}
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return false;
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}
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void *
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nv50_sw_chan_dtor(struct nvkm_sw_chan *base)
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{
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struct nv50_sw_chan *chan = nv50_sw_chan(base);
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int i;
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for (i = 0; i < ARRAY_SIZE(chan->vblank.notify); i++)
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nvkm_event_ntfy_del(&chan->vblank.notify[i]);
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return chan;
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}
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static const struct nvkm_sw_chan_func
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nv50_sw_chan = {
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.dtor = nv50_sw_chan_dtor,
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.mthd = nv50_sw_chan_mthd,
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};
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static int
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nv50_sw_chan_new(struct nvkm_sw *sw, struct nvkm_fifo_chan *fifoch,
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const struct nvkm_oclass *oclass, struct nvkm_object **pobject)
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{
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struct nvkm_disp *disp = sw->engine.subdev.device->disp;
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struct nv50_sw_chan *chan;
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int ret, i;
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if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
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return -ENOMEM;
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*pobject = &chan->base.object;
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ret = nvkm_sw_chan_ctor(&nv50_sw_chan, sw, fifoch, oclass, &chan->base);
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if (ret)
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return ret;
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for (i = 0; disp && i < disp->vblank.index_nr; i++) {
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nvkm_event_ntfy_add(&disp->vblank, i, NVKM_DISP_HEAD_EVENT_VBLANK, true,
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nv50_sw_chan_vblsem_release, &chan->vblank.notify[i]);
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}
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return 0;
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}
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/*******************************************************************************
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* software engine/subdev functions
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******************************************************************************/
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static const struct nvkm_sw_func
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nv50_sw = {
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.chan_new = nv50_sw_chan_new,
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.sclass = {
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{ nvkm_nvsw_new, { -1, -1, NVIF_CLASS_SW_NV50 } },
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{}
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}
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};
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int
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nv50_sw_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_sw **psw)
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{
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return nvkm_sw_new_(&nv50_sw, device, type, inst, psw);
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}
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