drivers/gpu/drm/nouveau/nouveau_chan.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __NOUVEAU_CHAN_H__
   3 #define __NOUVEAU_CHAN_H__
   4 #include <nvif/object.h>
   5 #include <nvif/notify.h>
   6 struct nvif_device;
   7
   8 struct nouveau_channel {
   9         struct nvif_device *device;
  10         struct nouveau_drm *drm;
  11         struct nouveau_vmm *vmm;
  12
  13         int chid;
  14         u64 inst;
  15         u32 token;
  16
  17         struct nvif_object vram;
  18         struct nvif_object gart;
  19         struct nvif_object nvsw;
  20
  21         struct {
  22                 struct nouveau_bo *buffer;
  23                 struct nouveau_vma *vma;
  24                 struct nvif_object ctxdma;
  25                 u64 addr;
  26         } push;
  27
  28         /* TODO: this will be reworked in the near future */
  29         bool accel_done;
  30         void *fence;
  31         struct {
  32                 int max;
  33                 int free;
  34                 int cur;
  35                 int put;
  36                 int ib_base;
  37                 int ib_max;
  38                 int ib_free;
  39                 int ib_put;
  40         } dma;
  41         u32 user_get_hi;
  42         u32 user_get;
  43         u32 user_put;
  44
  45         struct nvif_object user;
  46
  47         struct nvif_notify kill;
  48         atomic_t killed;
  49 };
  50
  51 int nouveau_channels_init(struct nouveau_drm *);
  52
  53 int  nouveau_channel_new(struct nouveau_drm *, struct nvif_device *,
  54                          u32 arg0, u32 arg1, bool priv,
  55                          struct nouveau_channel **);
  56 void nouveau_channel_del(struct nouveau_channel **);
  57 int  nouveau_channel_idle(struct nouveau_channel *);
  58
  59 extern int nouveau_vram_pushbuf;
  60
  61 #endif