Release 4.7 drivers/gpu/drm/amd/scheduler/sched_fence.c
/*
* Copyright 2015 Advanced Micro Devices, 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.
*
*
*/
#include <linux/kthread.h>
#include <linux/wait.h>
#include <linux/sched.h>
#include <drm/drmP.h>
#include "gpu_scheduler.h"
struct amd_sched_fence *amd_sched_fence_create(struct amd_sched_entity *s_entity, void *owner)
{
struct amd_sched_fence *fence = NULL;
unsigned seq;
fence = kmem_cache_zalloc(sched_fence_slab, GFP_KERNEL);
if (fence == NULL)
return NULL;
INIT_LIST_HEAD(&fence->scheduled_cb);
fence->owner = owner;
fence->sched = s_entity->sched;
spin_lock_init(&fence->lock);
seq = atomic_inc_return(&s_entity->fence_seq);
fence_init(&fence->base, &amd_sched_fence_ops, &fence->lock,
s_entity->fence_context, seq);
return fence;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| chunming zhou | chunming zhou | 84 | 77.06% | 3 | 37.50% |
| christian koenig | christian koenig | 25 | 22.94% | 5 | 62.50% |
| Total | 109 | 100.00% | 8 | 100.00% |
void amd_sched_fence_signal(struct amd_sched_fence *fence)
{
int ret = fence_signal(&fence->base);
if (!ret)
FENCE_TRACE(&fence->base, "signaled from irq context\n");
else
FENCE_TRACE(&fence->base, "was already signaled\n");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| chunming zhou | chunming zhou | 46 | 97.87% | 1 | 50.00% |
| christian koenig | christian koenig | 1 | 2.13% | 1 | 50.00% |
| Total | 47 | 100.00% | 2 | 100.00% |
void amd_sched_job_pre_schedule(struct amd_gpu_scheduler *sched ,
struct amd_sched_job *s_job)
{
unsigned long flags;
spin_lock_irqsave(&sched->job_list_lock, flags);
list_add_tail(&s_job->node, &sched->ring_mirror_list);
sched->ops->begin_job(s_job);
spin_unlock_irqrestore(&sched->job_list_lock, flags);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| monk liu | monk liu | 61 | 100.00% | 2 | 100.00% |
| Total | 61 | 100.00% | 2 | 100.00% |
void amd_sched_fence_scheduled(struct amd_sched_fence *s_fence)
{
struct fence_cb *cur, *tmp;
set_bit(AMD_SCHED_FENCE_SCHEDULED_BIT, &s_fence->base.flags);
list_for_each_entry_safe(cur, tmp, &s_fence->scheduled_cb, node) {
list_del_init(&cur->node);
cur->func(&s_fence->base, cur);
}
}
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| Person | Tokens | Prop | Commits | CommitProp |
| christian koenig | christian koenig | 62 | 100.00% | 1 | 100.00% |
| Total | 62 | 100.00% | 1 | 100.00% |
static const char *amd_sched_fence_get_driver_name(struct fence *fence)
{
return "amd_sched";
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| chunming zhou | chunming zhou | 16 | 100.00% | 1 | 100.00% |
| Total | 16 | 100.00% | 1 | 100.00% |
static const char *amd_sched_fence_get_timeline_name(struct fence *f)
{
struct amd_sched_fence *fence = to_amd_sched_fence(f);
return (const char *)fence->sched->name;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| chunming zhou | chunming zhou | 34 | 97.14% | 1 | 50.00% |
| christian koenig | christian koenig | 1 | 2.86% | 1 | 50.00% |
| Total | 35 | 100.00% | 2 | 100.00% |
static bool amd_sched_fence_enable_signaling(struct fence *f)
{
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| chunming zhou | chunming zhou | 13 | 92.86% | 1 | 50.00% |
| christian koenig | christian koenig | 1 | 7.14% | 1 | 50.00% |
| Total | 14 | 100.00% | 2 | 100.00% |
/**
* amd_sched_fence_free - free up the fence memory
*
* @rcu: RCU callback head
*
* Free up the fence memory after the RCU grace period.
*/
static void amd_sched_fence_free(struct rcu_head *rcu)
{
struct fence *f = container_of(rcu, struct fence, rcu);
struct amd_sched_fence *fence = to_amd_sched_fence(f);
kmem_cache_free(sched_fence_slab, fence);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| chunming zhou | chunming zhou | 25 | 58.14% | 1 | 50.00% |
| christian koenig | christian koenig | 18 | 41.86% | 1 | 50.00% |
| Total | 43 | 100.00% | 2 | 100.00% |
/**
* amd_sched_fence_release - callback that fence can be freed
*
* @fence: fence
*
* This function is called when the reference count becomes zero.
* It just RCU schedules freeing up the fence.
*/
static void amd_sched_fence_release(struct fence *f)
{
call_rcu(&f->rcu, amd_sched_fence_free);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| christian koenig | christian koenig | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
const struct fence_ops amd_sched_fence_ops = {
.get_driver_name = amd_sched_fence_get_driver_name,
.get_timeline_name = amd_sched_fence_get_timeline_name,
.enable_signaling = amd_sched_fence_enable_signaling,
.signaled = NULL,
.wait = fence_default_wait,
.release = amd_sched_fence_release,
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| chunming zhou | chunming zhou | 270 | 58.32% | 3 | 23.08% |
| christian koenig | christian koenig | 132 | 28.51% | 8 | 61.54% |
| monk liu | monk liu | 61 | 13.17% | 2 | 15.38% |
| Total | 463 | 100.00% | 13 | 100.00% |
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