cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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v3d_fence.c (1087B)

      1// SPDX-License-Identifier: GPL-2.0+
      2/* Copyright (C) 2017-2018 Broadcom */
      3
      4#include "v3d_drv.h"
      5
      6struct dma_fence *v3d_fence_create(struct v3d_dev *v3d, enum v3d_queue queue)
      7{
      8	struct v3d_fence *fence;
      9
     10	fence = kzalloc(sizeof(*fence), GFP_KERNEL);
     11	if (!fence)
     12		return ERR_PTR(-ENOMEM);
     13
     14	fence->dev = &v3d->drm;
     15	fence->queue = queue;
     16	fence->seqno = ++v3d->queue[queue].emit_seqno;
     17	dma_fence_init(&fence->base, &v3d_fence_ops, &v3d->job_lock,
     18		       v3d->queue[queue].fence_context, fence->seqno);
     19
     20	return &fence->base;
     21}
     22
     23static const char *v3d_fence_get_driver_name(struct dma_fence *fence)
     24{
     25	return "v3d";
     26}
     27
     28static const char *v3d_fence_get_timeline_name(struct dma_fence *fence)
     29{
     30	struct v3d_fence *f = to_v3d_fence(fence);
     31
     32	switch (f->queue) {
     33	case V3D_BIN:
     34		return "v3d-bin";
     35	case V3D_RENDER:
     36		return "v3d-render";
     37	case V3D_TFU:
     38		return "v3d-tfu";
     39	case V3D_CSD:
     40		return "v3d-csd";
     41	default:
     42		return NULL;
     43	}
     44}
     45
     46const struct dma_fence_ops v3d_fence_ops = {
     47	.get_driver_name = v3d_fence_get_driver_name,
     48	.get_timeline_name = v3d_fence_get_timeline_name,
     49};