diff options
Diffstat (limited to 'src/gallium/winsys/drm/nouveau/common/nouveau_fence.c')
| -rw-r--r-- | src/gallium/winsys/drm/nouveau/common/nouveau_fence.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/src/gallium/winsys/drm/nouveau/common/nouveau_fence.c b/src/gallium/winsys/drm/nouveau/common/nouveau_fence.c deleted file mode 100644 index 451011e112..0000000000 --- a/src/gallium/winsys/drm/nouveau/common/nouveau_fence.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * 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 <stdlib.h> -#include <errno.h> -#include <assert.h> - -#include "nouveau_drmif.h" -#include "nouveau_dma.h" -#include "nouveau_local.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) - NOUVEAU_ERR("AII wrap unhandled\n"); - - /*XXX: assumes subc 0 is populated */ - /* Not the way to fence on nv4 */ - if (nvchan->base.device->chipset >= 0x10) { - RING_SPACE_CH(fence->channel, 2); - OUT_RING_CH (fence->channel, 0x00040050); - OUT_RING_CH (fence->channel, nvfence->sequence); - } - - if (nvchan->fence_tail) { - nouveau_fence(nvchan->fence_tail)->next = fence; - } else { - nvchan->fence_head = fence; - } - nvchan->fence_tail = fence; -} - -void -nouveau_fence_flush(struct nouveau_channel *chan) -{ - struct nouveau_channel_priv *nvchan = nouveau_channel(chan); - uint32_t sequence = *nvchan->ref_cnt; - - 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); - } - } -} - -int -nouveau_fence_wait(struct nouveau_fence **fence) -{ - struct nouveau_fence_priv *nvfence; - - if (!fence || !*fence) - return -EINVAL; - nvfence = nouveau_fence(*fence); - - if (nvfence->emitted) { - while (!nvfence->signalled) - nouveau_fence_flush(nvfence->base.channel); - } - nouveau_fence_ref(NULL, fence); - - return 0; -} - |