| /* |
| * 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 <core/object.h> |
| #include <core/client.h> |
| #include <core/class.h> |
| |
| #include <engine/fifo.h> |
| |
| #include "nouveau_drm.h" |
| #include "nouveau_dma.h" |
| #include "nouveau_fence.h" |
| |
| #include "nv50_display.h" |
| |
| static int |
| nvc0_fence_emit(struct nouveau_fence *fence) |
| { |
| struct nouveau_channel *chan = fence->channel; |
| struct nv84_fence_chan *fctx = chan->fence; |
| struct nouveau_fifo_chan *fifo = (void *)chan->object; |
| u64 addr = fctx->vma.offset + fifo->chid * 16; |
| int ret; |
| |
| ret = RING_SPACE(chan, 6); |
| if (ret == 0) { |
| BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 5); |
| OUT_RING (chan, upper_32_bits(addr)); |
| OUT_RING (chan, lower_32_bits(addr)); |
| OUT_RING (chan, fence->sequence); |
| OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG); |
| OUT_RING (chan, 0x00000000); |
| FIRE_RING (chan); |
| } |
| |
| return ret; |
| } |
| |
| static int |
| nvc0_fence_sync(struct nouveau_fence *fence, |
| struct nouveau_channel *prev, struct nouveau_channel *chan) |
| { |
| struct nv84_fence_chan *fctx = chan->fence; |
| struct nouveau_fifo_chan *fifo = (void *)prev->object; |
| u64 addr = fctx->vma.offset + fifo->chid * 16; |
| int ret; |
| |
| ret = RING_SPACE(chan, 5); |
| if (ret == 0) { |
| BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); |
| OUT_RING (chan, upper_32_bits(addr)); |
| OUT_RING (chan, lower_32_bits(addr)); |
| OUT_RING (chan, fence->sequence); |
| OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL | |
| NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD); |
| FIRE_RING (chan); |
| } |
| |
| return ret; |
| } |
| |
| int |
| nvc0_fence_create(struct nouveau_drm *drm) |
| { |
| struct nouveau_fifo *pfifo = nouveau_fifo(drm->device); |
| struct nv84_fence_priv *priv; |
| int ret; |
| |
| priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL); |
| if (!priv) |
| return -ENOMEM; |
| |
| priv->base.dtor = nv84_fence_destroy; |
| priv->base.suspend = nv84_fence_suspend; |
| priv->base.resume = nv84_fence_resume; |
| priv->base.context_new = nv84_fence_context_new; |
| priv->base.context_del = nv84_fence_context_del; |
| priv->base.emit = nvc0_fence_emit; |
| priv->base.sync = nvc0_fence_sync; |
| priv->base.read = nv84_fence_read; |
| |
| init_waitqueue_head(&priv->base.waiting); |
| priv->base.uevent = true; |
| |
| ret = nouveau_bo_new(drm->dev, 16 * (pfifo->max + 1), 0, |
| TTM_PL_FLAG_VRAM, 0, 0, NULL, &priv->bo); |
| if (ret == 0) { |
| ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM); |
| if (ret == 0) { |
| ret = nouveau_bo_map(priv->bo); |
| if (ret) |
| nouveau_bo_unpin(priv->bo); |
| } |
| if (ret) |
| nouveau_bo_ref(NULL, &priv->bo); |
| } |
| |
| if (ret) |
| nv84_fence_destroy(drm); |
| return ret; |
| } |