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