From 225e7e274f49d5e01fa1ad3fbbb9f1499865fe67 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 30 Jan 2009 11:25:35 +1000 Subject: nouveau: install libdrm_nouveau with libdrm --- libdrm/nouveau/nouveau_fence.c | 249 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 249 insertions(+) create mode 100644 libdrm/nouveau/nouveau_fence.c (limited to 'libdrm/nouveau/nouveau_fence.c') diff --git a/libdrm/nouveau/nouveau_fence.c b/libdrm/nouveau/nouveau_fence.c new file mode 100644 index 00000000..e31fc89c --- /dev/null +++ b/libdrm/nouveau/nouveau_fence.c @@ -0,0 +1,249 @@ +/* + * Copyright 2007 Nouveau Project + * + * 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 AUTHORS 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. + */ + +#include +#include +#include +#include + +#include "nouveau_private.h" +#include "nouveau_dma.h" + +static void +nouveau_fence_del_unsignalled(struct nouveau_fence *fence) +{ + struct nouveau_channel_priv *nvchan = nouveau_channel(fence->channel); + struct nouveau_fence *le; + + if (nvchan->fence_head == fence) { + nvchan->fence_head = nouveau_fence(fence)->next; + if (nvchan->fence_head == NULL) + nvchan->fence_tail = NULL; + return; + } + + le = nvchan->fence_head; + while (le && nouveau_fence(le)->next != fence) + le = nouveau_fence(le)->next; + assert(le && nouveau_fence(le)->next == fence); + nouveau_fence(le)->next = nouveau_fence(fence)->next; + if (nvchan->fence_tail == fence) + nvchan->fence_tail = le; +} + +static void +nouveau_fence_del(struct nouveau_fence **fence) +{ + struct nouveau_fence_priv *nvfence; + + if (!fence || !*fence) + return; + nvfence = nouveau_fence(*fence); + *fence = NULL; + + if (--nvfence->refcount) + return; + + if (nvfence->emitted && !nvfence->signalled) { + if (nvfence->signal_cb) { + nvfence->refcount++; + nouveau_fence_wait((void *)&nvfence); + return; + } + + nouveau_fence_del_unsignalled(&nvfence->base); + } + free(nvfence); +} + +int +nouveau_fence_new(struct nouveau_channel *chan, struct nouveau_fence **fence) +{ + struct nouveau_fence_priv *nvfence; + + if (!chan || !fence || *fence) + return -EINVAL; + + nvfence = calloc(1, sizeof(struct nouveau_fence_priv)); + if (!nvfence) + return -ENOMEM; + nvfence->base.channel = chan; + nvfence->refcount = 1; + + *fence = &nvfence->base; + return 0; +} + +int +nouveau_fence_ref(struct nouveau_fence *ref, struct nouveau_fence **fence) +{ + struct nouveau_fence_priv *nvfence; + + if (!fence) + return -EINVAL; + + if (*fence) { + nouveau_fence_del(fence); + *fence = NULL; + } + + if (ref) { + nvfence = nouveau_fence(ref); + nvfence->refcount++; + *fence = &nvfence->base; + } + + return 0; +} + +int +nouveau_fence_signal_cb(struct nouveau_fence *fence, void (*func)(void *), + void *priv) +{ + struct nouveau_fence_priv *nvfence = nouveau_fence(fence); + struct nouveau_fence_cb *cb; + + if (!nvfence || !func) + return -EINVAL; + + cb = malloc(sizeof(struct nouveau_fence_cb)); + if (!cb) + return -ENOMEM; + + cb->func = func; + cb->priv = priv; + cb->next = nvfence->signal_cb; + nvfence->signal_cb = cb; + return 0; +} + +void +nouveau_fence_emit(struct nouveau_fence *fence) +{ + struct nouveau_channel_priv *nvchan = nouveau_channel(fence->channel); + struct nouveau_fence_priv *nvfence = nouveau_fence(fence); + + nvfence->emitted = 1; + nvfence->sequence = ++nvchan->fence_sequence; + if (nvfence->sequence == 0xffffffff) + printf("AII wrap unhandled\n"); + + if (!nvchan->fence_ntfy) { + /*XXX: assumes subc 0 is populated */ + nouveau_dma_space(fence->channel, 2); + nouveau_dma_out (fence->channel, 0x00040050); + nouveau_dma_out (fence->channel, nvfence->sequence); + } + nouveau_dma_kickoff(fence->channel); + + if (nvchan->fence_tail) { + nouveau_fence(nvchan->fence_tail)->next = fence; + } else { + nvchan->fence_head = fence; + } + nvchan->fence_tail = fence; +} + +static void +nouveau_fence_flush_seq(struct nouveau_channel *chan, uint32_t sequence) +{ + struct nouveau_channel_priv *nvchan = nouveau_channel(chan); + + while (nvchan->fence_head) { + struct nouveau_fence_priv *nvfence; + + nvfence = nouveau_fence(nvchan->fence_head); + if (nvfence->sequence > sequence) + break; + nouveau_fence_del_unsignalled(&nvfence->base); + nvfence->signalled = 1; + + if (nvfence->signal_cb) { + struct nouveau_fence *fence = NULL; + + nouveau_fence_ref(&nvfence->base, &fence); + + while (nvfence->signal_cb) { + struct nouveau_fence_cb *cb; + + cb = nvfence->signal_cb; + nvfence->signal_cb = cb->next; + cb->func(cb->priv); + free(cb); + } + + nouveau_fence_ref(NULL, &fence); + } + } +} + +void +nouveau_fence_flush(struct nouveau_channel *chan) +{ + struct nouveau_channel_priv *nvchan = nouveau_channel(chan); + + if (!nvchan->fence_ntfy) + nouveau_fence_flush_seq(chan, *nvchan->ref_cnt); +} + +int +nouveau_fence_wait(struct nouveau_fence **fence) +{ + struct nouveau_fence_priv *nvfence; + struct nouveau_channel_priv *nvchan; + + if (!fence) + return -EINVAL; + + nvfence = nouveau_fence(*fence); + if (!nvfence) + return 0; + nvchan = nouveau_channel(nvfence->base.channel); + + if (nvfence->emitted) { + if (!nvfence->signalled && nvchan->fence_ntfy) { + struct nouveau_channel *chan = &nvchan->base; + int ret; + + /*XXX: NV04/NV05: Full sync + flush all fences */ + nouveau_notifier_reset(nvchan->fence_ntfy, 0); + BEGIN_RING(chan, nvchan->fence_grobj, 0x0104, 1); + OUT_RING (chan, 0); + BEGIN_RING(chan, nvchan->fence_grobj, 0x0100, 1); + OUT_RING (chan, 0); + FIRE_RING (chan); + ret = nouveau_notifier_wait_status(nvchan->fence_ntfy, + 0, 0, 2.0); + if (ret) + return ret; + + nouveau_fence_flush_seq(chan, nvchan->fence_sequence); + } + + while (!nvfence->signalled) + nouveau_fence_flush(nvfence->base.channel); + } + + nouveau_fence_ref(NULL, fence); + return 0; +} + -- cgit v1.2.3