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 2 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_NOSEMAPHORE ((u8)BIT(1)) 31 32 #define __NO_PREEMPTION (I915_PRIORITY_WAIT) 33 34 struct i915_priolist { 35 struct list_head requests[I915_PRIORITY_COUNT]; 36 struct rb_node node; 37 unsigned long used; 38 int priority; 39 }; 40 41 #endif /* _I915_PRIOLIST_TYPES_H_ */ 42