1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun *
3*4882a593Smuzhiyun * (C) COPYRIGHT 2014, 2016 ARM Limited. All rights reserved.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * This program is free software and is provided to you under the terms of the
6*4882a593Smuzhiyun * GNU General Public License version 2 as published by the Free Software
7*4882a593Smuzhiyun * Foundation, and any use by you of this program is subject to the terms
8*4882a593Smuzhiyun * of such GNU licence.
9*4882a593Smuzhiyun *
10*4882a593Smuzhiyun * A copy of the licence is included with the program, and can also be obtained
11*4882a593Smuzhiyun * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
12*4882a593Smuzhiyun * Boston, MA 02110-1301, USA.
13*4882a593Smuzhiyun *
14*4882a593Smuzhiyun */
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun /*
20*4882a593Smuzhiyun * Job manager common APIs
21*4882a593Smuzhiyun */
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun #ifndef _KBASE_JM_H_
24*4882a593Smuzhiyun #define _KBASE_JM_H_
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun /**
27*4882a593Smuzhiyun * kbase_jm_kick() - Indicate that there are jobs ready to run.
28*4882a593Smuzhiyun * @kbdev: Device pointer
29*4882a593Smuzhiyun * @js_mask: Mask of the job slots that can be pulled from.
30*4882a593Smuzhiyun *
31*4882a593Smuzhiyun * Caller must hold the hwaccess_lock and schedule_sem semaphore
32*4882a593Smuzhiyun *
33*4882a593Smuzhiyun * Return: Mask of the job slots that can still be submitted to.
34*4882a593Smuzhiyun */
35*4882a593Smuzhiyun u32 kbase_jm_kick(struct kbase_device *kbdev, u32 js_mask);
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun /**
38*4882a593Smuzhiyun * kbase_jm_kick_all() - Indicate that there are jobs ready to run on all job
39*4882a593Smuzhiyun * slots.
40*4882a593Smuzhiyun * @kbdev: Device pointer
41*4882a593Smuzhiyun *
42*4882a593Smuzhiyun * Caller must hold the hwaccess_lock and schedule_sem semaphore
43*4882a593Smuzhiyun *
44*4882a593Smuzhiyun * Return: Mask of the job slots that can still be submitted to.
45*4882a593Smuzhiyun */
kbase_jm_kick_all(struct kbase_device * kbdev)46*4882a593Smuzhiyun static inline u32 kbase_jm_kick_all(struct kbase_device *kbdev)
47*4882a593Smuzhiyun {
48*4882a593Smuzhiyun return kbase_jm_kick(kbdev, (1 << kbdev->gpu_props.num_job_slots) - 1);
49*4882a593Smuzhiyun }
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun /**
52*4882a593Smuzhiyun * kbase_jm_try_kick - Attempt to call kbase_jm_kick
53*4882a593Smuzhiyun * @kbdev: Device pointer
54*4882a593Smuzhiyun * @js_mask: Mask of the job slots that can be pulled from
55*4882a593Smuzhiyun * Context: Caller must hold hwaccess_lock
56*4882a593Smuzhiyun *
57*4882a593Smuzhiyun * If schedule_sem can be immediately obtained then this function will call
58*4882a593Smuzhiyun * kbase_jm_kick() otherwise it will do nothing.
59*4882a593Smuzhiyun */
60*4882a593Smuzhiyun void kbase_jm_try_kick(struct kbase_device *kbdev, u32 js_mask);
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun /**
63*4882a593Smuzhiyun * kbase_jm_try_kick_all() - Attempt to call kbase_jm_kick_all
64*4882a593Smuzhiyun * @kbdev: Device pointer
65*4882a593Smuzhiyun * Context: Caller must hold hwaccess_lock
66*4882a593Smuzhiyun *
67*4882a593Smuzhiyun * If schedule_sem can be immediately obtained then this function will call
68*4882a593Smuzhiyun * kbase_jm_kick_all() otherwise it will do nothing.
69*4882a593Smuzhiyun */
70*4882a593Smuzhiyun void kbase_jm_try_kick_all(struct kbase_device *kbdev);
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun /**
73*4882a593Smuzhiyun * kbase_jm_idle_ctx() - Mark a context as idle.
74*4882a593Smuzhiyun * @kbdev: Device pointer
75*4882a593Smuzhiyun * @kctx: Context to mark as idle
76*4882a593Smuzhiyun *
77*4882a593Smuzhiyun * No more atoms will be pulled from this context until it is marked as active
78*4882a593Smuzhiyun * by kbase_js_use_ctx().
79*4882a593Smuzhiyun *
80*4882a593Smuzhiyun * The context should have no atoms currently pulled from it
81*4882a593Smuzhiyun * (kctx->atoms_pulled == 0).
82*4882a593Smuzhiyun *
83*4882a593Smuzhiyun * Caller must hold the hwaccess_lock
84*4882a593Smuzhiyun */
85*4882a593Smuzhiyun void kbase_jm_idle_ctx(struct kbase_device *kbdev, struct kbase_context *kctx);
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun /**
88*4882a593Smuzhiyun * kbase_jm_return_atom_to_js() - Return an atom to the job scheduler that has
89*4882a593Smuzhiyun * been soft-stopped or will fail due to a
90*4882a593Smuzhiyun * dependency
91*4882a593Smuzhiyun * @kbdev: Device pointer
92*4882a593Smuzhiyun * @katom: Atom that has been stopped or will be failed
93*4882a593Smuzhiyun *
94*4882a593Smuzhiyun * Return: Atom that has now been unblocked and can now be run, or NULL if none
95*4882a593Smuzhiyun */
96*4882a593Smuzhiyun struct kbase_jd_atom *kbase_jm_return_atom_to_js(struct kbase_device *kbdev,
97*4882a593Smuzhiyun struct kbase_jd_atom *katom);
98*4882a593Smuzhiyun
99*4882a593Smuzhiyun /**
100*4882a593Smuzhiyun * kbase_jm_complete() - Complete an atom
101*4882a593Smuzhiyun * @kbdev: Device pointer
102*4882a593Smuzhiyun * @katom: Atom that has completed
103*4882a593Smuzhiyun * @end_timestamp: Timestamp of atom completion
104*4882a593Smuzhiyun *
105*4882a593Smuzhiyun * Return: Atom that has now been unblocked and can now be run, or NULL if none
106*4882a593Smuzhiyun */
107*4882a593Smuzhiyun struct kbase_jd_atom *kbase_jm_complete(struct kbase_device *kbdev,
108*4882a593Smuzhiyun struct kbase_jd_atom *katom, ktime_t *end_timestamp);
109*4882a593Smuzhiyun
110*4882a593Smuzhiyun #endif /* _KBASE_JM_H_ */
111