LXR linux/drivers/gpu/drm/v3d/v3d

   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};
  50