drivers/gpu/drm/lima/lima_ctx.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
   2 /* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
   3
   4 #ifndef __LIMA_CTX_H__
   5 #define __LIMA_CTX_H__
   6
   7 #include <linux/xarray.h>
   8 #include <linux/sched.h>
   9
  10 #include "lima_device.h"
  11
  12 struct lima_ctx {
  13         struct kref refcnt;
  14         struct lima_device *dev;
  15         struct lima_sched_context context[lima_pipe_num];
  16         atomic_t guilty;
  17
  18         /* debug info */
  19         char pname[TASK_COMM_LEN];
  20         pid_t pid;
  21 };
  22
  23 struct lima_ctx_mgr {
  24         struct mutex lock;
  25         struct xarray handles;
  26 };
  27
  28 int lima_ctx_create(struct lima_device *dev, struct lima_ctx_mgr *mgr, u32 *id);
  29 int lima_ctx_free(struct lima_ctx_mgr *mgr, u32 id);
  30 struct lima_ctx *lima_ctx_get(struct lima_ctx_mgr *mgr, u32 id);
  31 void lima_ctx_put(struct lima_ctx *ctx);
  32 void lima_ctx_mgr_init(struct lima_ctx_mgr *mgr);
  33 void lima_ctx_mgr_fini(struct lima_ctx_mgr *mgr);
  34
  35 #endif