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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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f5617f9dde
Change-Id: I45bb8ff10ef05dc3b15e31a77fbcf31117705f11 Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/*
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* Copyright 2015 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*
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*/
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#include <linux/kthread.h>
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#include <linux/wait.h>
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#include <linux/sched.h>
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#include <drm/drmP.h>
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#include "gpu_scheduler.h"
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struct amd_sched_fence *amd_sched_fence_create(struct amd_sched_entity *s_entity, void *owner)
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{
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struct amd_sched_fence *fence = NULL;
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unsigned seq;
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fence = kmem_cache_zalloc(sched_fence_slab, GFP_KERNEL);
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if (fence == NULL)
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return NULL;
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fence->owner = owner;
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fence->sched = s_entity->sched;
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spin_lock_init(&fence->lock);
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seq = atomic_inc_return(&s_entity->fence_seq);
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fence_init(&fence->base, &amd_sched_fence_ops, &fence->lock,
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s_entity->fence_context, seq);
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return fence;
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}
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void amd_sched_fence_signal(struct amd_sched_fence *fence)
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{
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int ret = fence_signal(&fence->base);
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if (!ret)
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FENCE_TRACE(&fence->base, "signaled from irq context\n");
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else
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FENCE_TRACE(&fence->base, "was already signaled\n");
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}
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static const char *amd_sched_fence_get_driver_name(struct fence *fence)
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{
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return "amd_sched";
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}
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static const char *amd_sched_fence_get_timeline_name(struct fence *f)
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{
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struct amd_sched_fence *fence = to_amd_sched_fence(f);
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return (const char *)fence->sched->name;
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}
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static bool amd_sched_fence_enable_signaling(struct fence *f)
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{
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return true;
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}
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static void amd_sched_fence_release(struct fence *f)
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{
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struct amd_sched_fence *fence = to_amd_sched_fence(f);
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kmem_cache_free(sched_fence_slab, fence);
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}
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const struct fence_ops amd_sched_fence_ops = {
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.get_driver_name = amd_sched_fence_get_driver_name,
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.get_timeline_name = amd_sched_fence_get_timeline_name,
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.enable_signaling = amd_sched_fence_enable_signaling,
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.signaled = NULL,
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.wait = fence_default_wait,
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.release = amd_sched_fence_release,
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};
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