From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/nouveau/nvkm/engine/sw/nv04.c | 139 ++++++++++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/engine/sw/nv04.c (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/sw/nv04.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv04.c new file mode 100644 index 000000000..4aa575738 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv04.c @@ -0,0 +1,139 @@ +/* + * 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 +#include +#include +#include + +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); +} -- cgit v1.2.3