diff options
Diffstat (limited to 'linux-core/nouveau_fence.c')
| -rw-r--r-- | linux-core/nouveau_fence.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/linux-core/nouveau_fence.c b/linux-core/nouveau_fence.c deleted file mode 100644 index 4ad51ae4..00000000 --- a/linux-core/nouveau_fence.c +++ /dev/null @@ -1,119 +0,0 @@ -/* - * Copyright (C) 2007 Ben Skeggs. - * All Rights Reserved. - * - * 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 (including the - * next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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 "drmP.h" -#include "drm.h" -#include "nouveau_drv.h" -#include "nouveau_dma.h" - -static int -nouveau_fence_has_irq(struct drm_device *dev, uint32_t class, uint32_t flags) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - - DRM_DEBUG("class=%d, flags=0x%08x\n", class, flags); - - /* DRM's channel always uses IRQs to signal fences */ - if (class == dev_priv->channel.chan->id) - return 1; - - /* Other channels don't use IRQs at all yet */ - return 0; -} - -static int -nouveau_fence_emit(struct drm_device *dev, uint32_t class, uint32_t flags, - uint32_t *breadcrumb, uint32_t *native_type) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_channel *chan = dev_priv->fifos[class]; - struct nouveau_drm_channel *dchan = &dev_priv->channel; - - DRM_DEBUG("class=%d, flags=0x%08x\n", class, flags); - - /* We can't emit fences on client channels, update sequence number - * and userspace will emit the fence - */ - *breadcrumb = ++chan->next_sequence; - *native_type = DRM_FENCE_TYPE_EXE; - if (chan != dchan->chan) { - DRM_DEBUG("user fence 0x%08x\n", *breadcrumb); - return 0; - } - - DRM_DEBUG("emit 0x%08x\n", *breadcrumb); - BEGIN_RING(NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_SET_REF, 1); - OUT_RING (*breadcrumb); - BEGIN_RING(NvSubM2MF, 0x0150, 1); - OUT_RING (0); - FIRE_RING (); - - return 0; -} - -static void -nouveau_fence_poll(struct drm_device *dev, uint32_t class, uint32_t waiting_types) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct drm_fence_class_manager *fc = &dev->fm.fence_class[class]; - struct nouveau_channel *chan = dev_priv->fifos[class]; - - DRM_DEBUG("class=%d\n", class); - DRM_DEBUG("pending: 0x%08x 0x%08x\n", waiting_types, fc->waiting_types); - - if (waiting_types & DRM_FENCE_TYPE_EXE) { - uint32_t sequence = NV_READ(chan->ref_cnt); - - DRM_DEBUG("got 0x%08x\n", sequence); - drm_fence_handler(dev, class, sequence, waiting_types, 0); - } -} - -void -nouveau_fence_handler(struct drm_device *dev, int channel) -{ - struct drm_fence_manager *fm = &dev->fm; - struct drm_fence_class_manager *fc = &fm->fence_class[channel]; - - DRM_DEBUG("class=%d\n", channel); - - write_lock(&fm->lock); - nouveau_fence_poll(dev, channel, fc->waiting_types); - write_unlock(&fm->lock); -} - -struct drm_fence_driver nouveau_fence_driver = { - .num_classes = 8, - .wrap_diff = (1 << 30), - .flush_diff = (1 << 29), - .sequence_mask = 0xffffffffU, - .has_irq = nouveau_fence_has_irq, - .emit = nouveau_fence_emit, - .flush = NULL, - .poll = nouveau_fence_poll, - .needed_flush = NULL, - .wait = NULL -}; |