2 * Copyright (C) 2013-2014, 2016 ARM Limited. All rights reserved.
4 * This program is free software and is provided to you under the terms of the GNU General Public License version 2
5 * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
7 * A copy of the licence is included with the program, and can also be obtained from Free Software
8 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
11 #ifndef __MALI_SOFT_JOB_H__
12 #define __MALI_SOFT_JOB_H__
16 #include "mali_timeline.h"
18 struct mali_timeline_fence;
19 struct mali_session_data;
21 struct mali_soft_job_system;
26 * Soft jobs of type MALI_SOFT_JOB_TYPE_USER_SIGNALED will only complete after activation if either
27 * they are signaled by user-space (@ref mali_soft_job_system_signaled_job) or if they are timed out
28 * by the Timeline system.
29 * Soft jobs of type MALI_SOFT_JOB_TYPE_SELF_SIGNALED will release job resource automatically
30 * in kernel when the job is activated.
32 typedef enum mali_soft_job_type {
33 MALI_SOFT_JOB_TYPE_SELF_SIGNALED,
34 MALI_SOFT_JOB_TYPE_USER_SIGNALED,
40 * mali_soft_job_system_start_job a job will first be allocated.The job's state set to MALI_SOFT_JOB_STATE_ALLOCATED.
41 * Once the job is added to the timeline system, the state changes to MALI_SOFT_JOB_STATE_STARTED.
43 * For soft jobs of type MALI_SOFT_JOB_TYPE_USER_SIGNALED the state is changed to
44 * MALI_SOFT_JOB_STATE_SIGNALED when @ref mali_soft_job_system_signal_job is called and the soft
45 * job's state is MALI_SOFT_JOB_STATE_STARTED or MALI_SOFT_JOB_STATE_TIMED_OUT.
47 * If a soft job of type MALI_SOFT_JOB_TYPE_USER_SIGNALED is timed out before being signaled, the
48 * state is changed to MALI_SOFT_JOB_STATE_TIMED_OUT. This can only happen to soft jobs in state
49 * MALI_SOFT_JOB_STATE_STARTED.
52 typedef enum mali_soft_job_state {
53 MALI_SOFT_JOB_STATE_ALLOCATED,
54 MALI_SOFT_JOB_STATE_STARTED,
55 MALI_SOFT_JOB_STATE_SIGNALED,
56 MALI_SOFT_JOB_STATE_TIMED_OUT,
57 } mali_soft_job_state;
59 #define MALI_SOFT_JOB_INVALID_ID ((u32) -1)
64 * Soft job can be used to represent any kind of CPU work done in kernel-space.
66 typedef struct mali_soft_job {
67 mali_soft_job_type type; /**< Soft job type. Must be one of MALI_SOFT_JOB_TYPE_*. */
68 u64 user_job; /**< Identifier for soft job in user space. */
69 _mali_osk_atomic_t refcount; /**< Soft jobs are reference counted to prevent premature deletion. */
70 struct mali_timeline_tracker tracker; /**< Timeline tracker for soft job. */
71 mali_bool activated; /**< MALI_TRUE if the job has been activated, MALI_FALSE if not. */
72 _mali_osk_notification_t *activated_notification; /**< Pre-allocated notification object for ACTIVATED_NOTIFICATION. */
74 /* Protected by soft job system lock. */
75 u32 id; /**< Used by user-space to find corresponding soft job in kernel-space. */
76 mali_soft_job_state state; /**< State of soft job, must be one of MALI_SOFT_JOB_STATE_*. */
77 struct mali_soft_job_system *system; /**< The soft job system this job is in. */
78 _mali_osk_list_t system_list; /**< List element used by soft job system. */
82 * Per-session soft job system.
84 * The soft job system is used to manage all soft jobs that belongs to a session.
86 typedef struct mali_soft_job_system {
87 struct mali_session_data *session; /**< The session this soft job system belongs to. */
88 _MALI_OSK_LIST_HEAD(jobs_used); /**< List of all allocated soft jobs. */
90 _mali_osk_spinlock_irq_t *lock; /**< Lock used to protect soft job system and its soft jobs. */
91 u32 lock_owner; /**< Contains tid of thread that locked the system or 0, if not locked. */
92 u32 last_job_id; /**< Recored the last job id protected by lock. */
93 } mali_soft_job_system;
96 * Create a soft job system.
98 * @param session The session this soft job system will belong to.
99 * @return The new soft job system, or NULL if unsuccessful.
101 struct mali_soft_job_system *mali_soft_job_system_create(struct mali_session_data *session);
104 * Destroy a soft job system.
106 * @note The soft job must not have any started or activated jobs. Call @ref
107 * mali_soft_job_system_abort first.
109 * @param system The soft job system we are destroying.
111 void mali_soft_job_system_destroy(struct mali_soft_job_system *system);
116 * @param system Soft job system to create soft job from.
117 * @param type Type of the soft job.
118 * @param user_job Identifier for soft job in user space.
119 * @return New soft job if successful, NULL if not.
121 struct mali_soft_job *mali_soft_job_create(struct mali_soft_job_system *system, mali_soft_job_type type, u64 user_job);
126 * @param job Soft job to destroy.
128 void mali_soft_job_destroy(struct mali_soft_job *job);
133 * The soft job will be added to the Timeline system which will then activate it after all
134 * dependencies have been resolved.
136 * Create soft jobs with @ref mali_soft_job_create before starting them.
138 * @param job Soft job to start.
139 * @param fence Fence representing dependencies for this soft job.
140 * @return Point on soft job timeline.
142 mali_timeline_point mali_soft_job_start(struct mali_soft_job *job, struct mali_timeline_fence *fence);
145 * Use by user-space to signal that a soft job has completed.
147 * @note Only valid for soft jobs with type MALI_SOFT_JOB_TYPE_USER_SIGNALED.
149 * @note The soft job must be in state MALI_SOFT_JOB_STATE_STARTED for the signal to be successful.
151 * @note If the soft job was signaled successfully, or it received a time out, the soft job will be
152 * destroyed after this call and should no longer be used.
154 * @note This function will block until the soft job has been activated.
156 * @param system The soft job system the job was started in.
157 * @param job_id ID of soft job we are signaling.
159 * @return _MALI_OSK_ERR_ITEM_NOT_FOUND if the soft job ID was invalid, _MALI_OSK_ERR_TIMEOUT if the
160 * soft job was timed out or _MALI_OSK_ERR_OK if we successfully signaled the soft job.
162 _mali_osk_errcode_t mali_soft_job_system_signal_job(struct mali_soft_job_system *system, u32 job_id);
165 * Used by the Timeline system to activate a soft job.
167 * @param job The soft job that is being activated.
168 * @return A scheduling bitmask.
170 mali_scheduler_mask mali_soft_job_system_activate_job(struct mali_soft_job *job);
173 * Used by the Timeline system to timeout a soft job.
175 * A soft job is timed out if it completes or is signaled later than MALI_TIMELINE_TIMEOUT_HZ after
178 * @param job The soft job that is being timed out.
179 * @return A scheduling bitmask.
181 mali_scheduler_mask mali_soft_job_system_timeout_job(struct mali_soft_job *job);
184 * Used to cleanup activated soft jobs in the soft job system on session abort.
186 * @param system The soft job system that is being aborted.
188 void mali_soft_job_system_abort(struct mali_soft_job_system *system);
190 #endif /* __MALI_SOFT_JOB_H__ */