drivers/gpu/drm/i915/i915_priolist_types.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright © 2018 Intel Corporation
   5  */
   6
   7 #ifndef _I915_PRIOLIST_TYPES_H_
   8 #define _I915_PRIOLIST_TYPES_H_
   9
  10 #include <linux/list.h>
  11 #include <linux/rbtree.h>
  12
  13 #include <uapi/drm/i915_drm.h>
  14
  15 enum {
  16         I915_PRIORITY_MIN = I915_CONTEXT_MIN_USER_PRIORITY - 1,
  17         I915_PRIORITY_NORMAL = I915_CONTEXT_DEFAULT_PRIORITY,
  18         I915_PRIORITY_MAX = I915_CONTEXT_MAX_USER_PRIORITY + 1,
  19
  20         I915_PRIORITY_INVALID = INT_MIN
  21 };
  22
  23 #define I915_USER_PRIORITY_SHIFT 3
  24 #define I915_USER_PRIORITY(x) ((x) << I915_USER_PRIORITY_SHIFT)
  25
  26 #define I915_PRIORITY_COUNT BIT(I915_USER_PRIORITY_SHIFT)
  27 #define I915_PRIORITY_MASK (I915_PRIORITY_COUNT - 1)
  28
  29 #define I915_PRIORITY_WAIT              ((u8)BIT(0))
  30 #define I915_PRIORITY_NEWCLIENT         ((u8)BIT(1))
  31 #define I915_PRIORITY_NOSEMAPHORE       ((u8)BIT(2))
  32
  33 #define __NO_PREEMPTION (I915_PRIORITY_WAIT)
  34
  35 struct i915_priolist {
  36         struct list_head requests[I915_PRIORITY_COUNT];
  37         struct rb_node node;
  38         unsigned long used;
  39         int priority;
  40 };
  41
  42 #endif /* _I915_PRIOLIST_TYPES_H_ */