cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nv10_fence.c

/*
 * 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 <bskeggs@redhat.com>
 */

#include "nouveau_drv.h"
#include "nouveau_dma.h"
#include "nv10_fence.h"


int nv10_fence_emit(struct nouveau_fence *fence) { struct nouveau_channel *chan = fence->channel; int ret = RING_SPACE(chan, 2); if (ret == 0) { BEGIN_NV04(chan, 0, NV10_SUBCHAN_REF_CNT, 1); OUT_RING (chan, fence->base.seqno); FIRE_RING (chan); } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs6495.52%150.00%
Maarten Lankhorst34.48%150.00%
Total67100.00%2100.00%


static int nv10_fence_sync(struct nouveau_fence *fence, struct nouveau_channel *prev, struct nouveau_channel *chan) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs25100.00%2100.00%
Total25100.00%2100.00%


u32 nv10_fence_read(struct nouveau_channel *chan) { return nvif_rd32(&chan->user, 0x0048); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs21100.00%3100.00%
Total21100.00%3100.00%


void nv10_fence_context_del(struct nouveau_channel *chan) { struct nv10_fence_chan *fctx = chan->fence; nouveau_fence_context_del(&fctx->base); nvif_object_fini(&fctx->sema); chan->fence = NULL; nouveau_fence_context_free(&fctx->base); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs4591.84%375.00%
Maarten Lankhorst48.16%125.00%
Total49100.00%4100.00%


static int nv10_fence_context_new(struct nouveau_channel *chan) { struct nv10_fence_chan *fctx; fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL); if (!fctx) return -ENOMEM; nouveau_fence_context_new(chan, &fctx->base); fctx->base.emit = nv10_fence_emit; fctx->base.read = nv10_fence_read; fctx->base.sync = nv10_fence_sync; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs7696.20%466.67%
Maarten Lankhorst22.53%116.67%
Baoyou Xie11.27%116.67%
Total79100.00%6100.00%


void nv10_fence_destroy(struct nouveau_drm *drm) { struct nv10_fence_priv *priv = drm->fence; nouveau_bo_unmap(priv->bo); if (priv->bo) nouveau_bo_unpin(priv->bo); nouveau_bo_ref(NULL, &priv->bo); drm->fence = NULL; kfree(priv); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs4778.33%375.00%
Marcin Ślusarz1321.67%125.00%
Total60100.00%4100.00%


int nv10_fence_create(struct nouveau_drm *drm) { struct nv10_fence_priv *priv; priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; priv->base.dtor = nv10_fence_destroy; priv->base.context_new = nv10_fence_context_new; priv->base.context_del = nv10_fence_context_del; priv->base.contexts = 31; priv->base.context_base = dma_fence_context_alloc(priv->base.contexts); spin_lock_init(&priv->lock); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs7676.77%466.67%
Maarten Lankhorst2222.22%116.67%
Chris Wilson11.01%116.67%
Total99100.00%6100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs36388.54%1062.50%
Maarten Lankhorst317.56%212.50%
Marcin Ślusarz143.41%212.50%
Chris Wilson10.24%16.25%
Baoyou Xie10.24%16.25%
Total410100.00%16100.00%
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