| /* |
| * |
| * (C) COPYRIGHT 2011-2015 ARM Limited. All rights reserved. |
| * |
| * This program is free software and is provided to you under the terms of the |
| * GNU General Public License version 2 as published by the Free Software |
| * Foundation, and any use by you of this program is subject to the terms |
| * of such GNU licence. |
| * |
| * A copy of the licence is included with the program, and can also be obtained |
| * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| |
| |
| |
| |
| /* |
| * Completely Fair Job Scheduler Policy structure definitions |
| */ |
| |
| #ifndef _KBASE_JS_POLICY_CFS_H_ |
| #define _KBASE_JS_POLICY_CFS_H_ |
| |
| #define KBASEP_JS_RUNTIME_EMPTY ((u64)-1) |
| |
| /** |
| * struct kbasep_js_policy_cfs - Data for the CFS policy |
| * @head_runtime_us: Number of microseconds the least-run context has been |
| * running for. The kbasep_js_device_data.queue_mutex must |
| * be held whilst updating this. |
| * Reads are possible without this mutex, but an older value |
| * might be read if no memory barries are issued beforehand. |
| * @least_runtime_us: Number of microseconds the least-run context in the |
| * context queue has been running for. |
| * -1 if context queue is empty. |
| * @rt_least_runtime_us: Number of microseconds the least-run context in the |
| * realtime (priority) context queue has been running for. |
| * -1 if realtime context queue is empty |
| */ |
| struct kbasep_js_policy_cfs { |
| u64 head_runtime_us; |
| atomic64_t least_runtime_us; |
| atomic64_t rt_least_runtime_us; |
| }; |
| |
| /** |
| * struct kbasep_js_policy_cfs_ctx - a single linked list of all contexts |
| * @runtime_us: microseconds this context has been running for |
| * @process_rt_policy: set if calling process policy scheme is a realtime |
| * scheduler and will use the priority queue. Non-mutable |
| * after ctx init |
| * @process_priority: calling process NICE priority, in the range -20..19 |
| * |
| * &kbasep_js_device_data.runpool_irq.lock must be held when updating |
| * @runtime_us. Initializing will occur on context init and context enqueue |
| * (which can only occur in one thread at a time), but multi-thread access only |
| * occurs while the context is in the runpool. |
| * |
| * Reads are possible without the spinlock, but an older value might be read if |
| * no memory barries are issued beforehand. |
| */ |
| struct kbasep_js_policy_cfs_ctx { |
| u64 runtime_us; |
| bool process_rt_policy; |
| int process_priority; |
| }; |
| |
| /** |
| * struct kbasep_js_policy_cfs_job - per job information for CFS |
| * @ticks: number of ticks that this job has been executing for |
| * |
| * &kbasep_js_device_data.runpool_irq.lock must be held when accessing @ticks. |
| */ |
| struct kbasep_js_policy_cfs_job { |
| u32 ticks; |
| }; |
| |
| #endif |
