140 lines
3.8 KiB
C
140 lines
3.8 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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#define nv04_sw_chan(p) container_of((p), struct nv04_sw_chan, base)
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#include "priv.h"
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#include "chan.h"
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#include "nvsw.h"
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#include <nvif/class.h>
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#include <nvif/if0004.h>
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#include <nvif/ioctl.h>
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#include <nvif/unpack.h>
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struct nv04_sw_chan {
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struct nvkm_sw_chan base;
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atomic_t ref;
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};
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/*******************************************************************************
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* software object classes
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******************************************************************************/
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static int
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nv04_nvsw_mthd_get_ref(struct nvkm_nvsw *nvsw, void *data, u32 size)
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{
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struct nv04_sw_chan *chan = nv04_sw_chan(nvsw->chan);
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union {
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struct nv04_nvsw_get_ref_v0 v0;
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} *args = data;
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int ret = -ENOSYS;
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if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
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args->v0.ref = atomic_read(&chan->ref);
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}
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return ret;
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}
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static int
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nv04_nvsw_mthd(struct nvkm_nvsw *nvsw, u32 mthd, void *data, u32 size)
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{
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switch (mthd) {
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case NV04_NVSW_GET_REF:
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return nv04_nvsw_mthd_get_ref(nvsw, data, size);
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default:
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break;
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}
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return -EINVAL;
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}
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static const struct nvkm_nvsw_func
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nv04_nvsw = {
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.mthd = nv04_nvsw_mthd,
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};
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static int
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nv04_nvsw_new(struct nvkm_sw_chan *chan, const struct nvkm_oclass *oclass,
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void *data, u32 size, struct nvkm_object **pobject)
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{
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return nvkm_nvsw_new_(&nv04_nvsw, chan, oclass, data, size, pobject);
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}
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/*******************************************************************************
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* software context
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******************************************************************************/
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static bool
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nv04_sw_chan_mthd(struct nvkm_sw_chan *base, int subc, u32 mthd, u32 data)
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{
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struct nv04_sw_chan *chan = nv04_sw_chan(base);
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switch (mthd) {
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case 0x0150:
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atomic_set(&chan->ref, data);
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return true;
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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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static const struct nvkm_sw_chan_func
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nv04_sw_chan = {
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.mthd = nv04_sw_chan_mthd,
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};
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static int
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nv04_sw_chan_new(struct nvkm_sw *sw, struct nvkm_fifo_chan *fifo,
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const struct nvkm_oclass *oclass, struct nvkm_object **pobject)
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{
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struct nv04_sw_chan *chan;
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if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
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return -ENOMEM;
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atomic_set(&chan->ref, 0);
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*pobject = &chan->base.object;
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return nvkm_sw_chan_ctor(&nv04_sw_chan, sw, fifo, oclass, &chan->base);
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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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nv04_sw = {
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.chan_new = nv04_sw_chan_new,
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.sclass = {
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{ nv04_nvsw_new, { -1, -1, NVIF_CLASS_SW_NV04 } },
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{}
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}
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};
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int
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nv04_sw_new(struct nvkm_device *device, int index, struct nvkm_sw **psw)
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{
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return nvkm_sw_new_(&nv04_sw, device, index, psw);
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}
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