From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/nouveau/nv04_fence.c | 112 +++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nv04_fence.c (limited to 'drivers/gpu/drm/nouveau/nv04_fence.c') diff --git a/drivers/gpu/drm/nouveau/nv04_fence.c b/drivers/gpu/drm/nouveau/nv04_fence.c new file mode 100644 index 000000000..cdbc75e3d --- /dev/null +++ b/drivers/gpu/drm/nouveau/nv04_fence.c @@ -0,0 +1,112 @@ +/* + * 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 + */ +#include "nouveau_drv.h" +#include "nouveau_dma.h" +#include "nouveau_fence.h" + +#include +#include + +struct nv04_fence_chan { + struct nouveau_fence_chan base; +}; + +struct nv04_fence_priv { + struct nouveau_fence_priv base; +}; + +static int +nv04_fence_emit(struct nouveau_fence *fence) +{ + struct nvif_push *push = unrcu_pointer(fence->channel)->chan.push; + int ret = PUSH_WAIT(push, 2); + if (ret == 0) { + PUSH_NVSQ(push, NV_SW, 0x0150, fence->base.seqno); + PUSH_KICK(push); + } + return ret; +} + +static int +nv04_fence_sync(struct nouveau_fence *fence, + struct nouveau_channel *prev, struct nouveau_channel *chan) +{ + return -ENODEV; +} + +static u32 +nv04_fence_read(struct nouveau_channel *chan) +{ + struct nv04_nvsw_get_ref_v0 args = {}; + WARN_ON(nvif_object_mthd(&chan->nvsw, NV04_NVSW_GET_REF, + &args, sizeof(args))); + return args.ref; +} + +static void +nv04_fence_context_del(struct nouveau_channel *chan) +{ + struct nv04_fence_chan *fctx = chan->fence; + nouveau_fence_context_del(&fctx->base); + chan->fence = NULL; + nouveau_fence_context_free(&fctx->base); +} + +static int +nv04_fence_context_new(struct nouveau_channel *chan) +{ + struct nv04_fence_chan *fctx = kzalloc(sizeof(*fctx), GFP_KERNEL); + if (fctx) { + nouveau_fence_context_new(chan, &fctx->base); + fctx->base.emit = nv04_fence_emit; + fctx->base.sync = nv04_fence_sync; + fctx->base.read = nv04_fence_read; + chan->fence = fctx; + return 0; + } + return -ENOMEM; +} + +static void +nv04_fence_destroy(struct nouveau_drm *drm) +{ + struct nv04_fence_priv *priv = drm->fence; + drm->fence = NULL; + kfree(priv); +} + +int +nv04_fence_create(struct nouveau_drm *drm) +{ + struct nv04_fence_priv *priv; + + priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->base.dtor = nv04_fence_destroy; + priv->base.context_new = nv04_fence_context_new; + priv->base.context_del = nv04_fence_context_del; + return 0; +} -- cgit v1.2.3