+/*
+ * Copyright (C) 2012 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.
+ */
+
+#include "mali_pp_scheduler.h"
+#include "mali_kernel_common.h"
+#include "mali_kernel_core.h"
+#include "mali_osk.h"
+#include "mali_osk_list.h"
+#include "mali_scheduler.h"
+#include "mali_pp.h"
+#include "mali_pp_job.h"
+#include "mali_group.h"
+#include "mali_pm.h"
+#include "mali_timeline.h"
+#include "mali_osk_profiling.h"
+#include "mali_kernel_utilization.h"
+#include "mali_session.h"
+#include "mali_pm_domain.h"
+#include "linux/mali/mali_utgard.h"
+
+#if defined(CONFIG_DMA_SHARED_BUFFER)
+#include "mali_memory_dma_buf.h"
+#endif
+#if defined(CONFIG_GPU_TRACEPOINTS) && defined(CONFIG_TRACEPOINTS)
+#include <linux/sched.h>
+#include <trace/events/gpu.h>
+#endif
+
+/* Queue type used for physical and virtual job queues. */
+struct mali_pp_scheduler_job_queue {
+ _MALI_OSK_LIST_HEAD(normal_pri); /* List of jobs with some unscheduled work. */
+ _MALI_OSK_LIST_HEAD(high_pri); /* List of high priority jobs with some unscheduled work. */
+ u32 depth; /* Depth of combined queues. */
+};
+
+/* If dma_buf with map on demand is used, we defer job deletion and job queue if in atomic context,
+ * since both might sleep. */
+#if defined(CONFIG_DMA_SHARED_BUFFER) && !defined(CONFIG_MALI_DMA_BUF_MAP_ON_ATTACH)
+#define MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE 1
+#define MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE 1
+#endif /* !defined(CONFIG_DMA_SHARED_BUFFER) && !defined(CONFIG_MALI_DMA_BUF_MAP_ON_ATTACH) */
+
+static void mali_pp_scheduler_job_queued(void);
+static void mali_pp_scheduler_job_completed(void);
+
+/* Maximum of 8 PP cores (a group can only have maximum of 1 PP core) */
+#define MALI_MAX_NUMBER_OF_PP_GROUPS 9
+
+static mali_bool mali_pp_scheduler_is_suspended(void *data);
+
+static u32 pp_version = 0;
+
+/* Physical job queue */
+static struct mali_pp_scheduler_job_queue job_queue;
+
+/* Physical groups */
+static _MALI_OSK_LIST_HEAD_STATIC_INIT(group_list_working); /* List of physical groups with working jobs on the pp core */
+static _MALI_OSK_LIST_HEAD_STATIC_INIT(group_list_idle); /* List of physical groups with idle jobs on the pp core */
+static _MALI_OSK_LIST_HEAD_STATIC_INIT(group_list_disabled); /* List of disabled physical groups */
+
+/* Virtual job queue (Mali-450 only) */
+static struct mali_pp_scheduler_job_queue virtual_job_queue;
+
+/**
+ * Add job to scheduler queue.
+ *
+ * @param job Job to queue.
+ * @return Schedule mask.
+ */
+static mali_scheduler_mask mali_pp_scheduler_queue_job(struct mali_pp_job *job);
+
+/* Virtual group (Mali-450 only) */
+static struct mali_group *virtual_group = NULL; /* Virtual group (if any) */
+static enum {
+ VIRTUAL_GROUP_IDLE,
+ VIRTUAL_GROUP_WORKING,
+ VIRTUAL_GROUP_DISABLED,
+}
+virtual_group_state = VIRTUAL_GROUP_IDLE; /* Flag which indicates whether the virtual group is working or idle */
+
+/* Number of physical cores */
+static u32 num_cores = 0;
+
+/* Number of physical cores which are enabled */
+static u32 enabled_cores = 0;
+
+/* Enable or disable core scaling */
+static mali_bool core_scaling_enabled = MALI_TRUE;
+
+/* Variables to allow safe pausing of the scheduler */
+static _mali_osk_wait_queue_t *pp_scheduler_working_wait_queue = NULL;
+static u32 pause_count = 0;
+
+#if defined(MALI_UPPER_HALF_SCHEDULING)
+static _mali_osk_spinlock_irq_t *pp_scheduler_lock = NULL;
+#else
+static _mali_osk_spinlock_t *pp_scheduler_lock = NULL;
+#endif /* defined(MALI_UPPER_HALF_SCHEDULING) */
+
+MALI_STATIC_INLINE void mali_pp_scheduler_lock(void)
+{
+#if defined(MALI_UPPER_HALF_SCHEDULING)
+ _mali_osk_spinlock_irq_lock(pp_scheduler_lock);
+#else
+ _mali_osk_spinlock_lock(pp_scheduler_lock);
+#endif /* defined(MALI_UPPER_HALF_SCHEDULING) */
+ MALI_DEBUG_PRINT(5, ("Mali PP scheduler: PP scheduler lock taken.\n"));
+}
+
+MALI_STATIC_INLINE void mali_pp_scheduler_unlock(void)
+{
+ MALI_DEBUG_PRINT(5, ("Mali PP scheduler: Releasing PP scheduler lock.\n"));
+#if defined(MALI_UPPER_HALF_SCHEDULING)
+ _mali_osk_spinlock_irq_unlock(pp_scheduler_lock);
+#else
+ _mali_osk_spinlock_unlock(pp_scheduler_lock);
+#endif /* defined(MALI_UPPER_HALF_SCHEDULING) */
+}
+
+#if defined(DEBUG)
+#define MALI_ASSERT_PP_SCHEDULER_LOCKED() MALI_DEBUG_ASSERT_LOCK_HELD(pp_scheduler_lock)
+#else
+#define MALI_ASSERT_PP_SCHEDULER_LOCKED() do {} while (0)
+#endif /* defined(DEBUG) */
+
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE)
+
+static _mali_osk_wq_work_t *pp_scheduler_wq_job_delete = NULL;
+static _mali_osk_spinlock_irq_t *pp_scheduler_job_delete_lock = NULL;
+static _MALI_OSK_LIST_HEAD_STATIC_INIT(pp_scheduler_job_deletion_queue);
+
+static void mali_pp_scheduler_deferred_job_delete(struct mali_pp_job *job)
+{
+ MALI_DEBUG_ASSERT_POINTER(job);
+
+ _mali_osk_spinlock_irq_lock(pp_scheduler_job_delete_lock);
+
+ /* This job object should not be on any lists. */
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->list));
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->session_list));
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->session_fb_lookup_list));
+
+ _mali_osk_list_addtail(&job->list, &pp_scheduler_job_deletion_queue);
+
+ _mali_osk_spinlock_irq_unlock(pp_scheduler_job_delete_lock);
+
+ _mali_osk_wq_schedule_work(pp_scheduler_wq_job_delete);
+}
+
+static void mali_pp_scheduler_do_job_delete(void *arg)
+{
+ _MALI_OSK_LIST_HEAD_STATIC_INIT(list);
+ struct mali_pp_job *job;
+ struct mali_pp_job *tmp;
+
+ MALI_IGNORE(arg);
+
+ _mali_osk_spinlock_irq_lock(pp_scheduler_job_delete_lock);
+
+ /*
+ * Quickly "unhook" the jobs pending to be deleted, so we can release the lock before
+ * we start deleting the job objects (without any locks held
+ */
+ _mali_osk_list_move_list(&pp_scheduler_job_deletion_queue, &list);
+
+ _mali_osk_spinlock_irq_unlock(pp_scheduler_job_delete_lock);
+
+ _MALI_OSK_LIST_FOREACHENTRY(job, tmp, &list, struct mali_pp_job, list) {
+ mali_pp_job_delete(job); /* delete the job object itself */
+ }
+}
+
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE) */
+
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE)
+
+static _mali_osk_wq_work_t *pp_scheduler_wq_job_queue = NULL;
+static _mali_osk_spinlock_irq_t *pp_scheduler_job_queue_lock = NULL;
+static _MALI_OSK_LIST_HEAD_STATIC_INIT(pp_scheduler_job_queue_list);
+
+static void mali_pp_scheduler_deferred_job_queue(struct mali_pp_job *job)
+{
+ MALI_DEBUG_ASSERT_POINTER(job);
+
+ _mali_osk_spinlock_irq_lock(pp_scheduler_job_queue_lock);
+ _mali_osk_list_addtail(&job->list, &pp_scheduler_job_queue_list);
+ _mali_osk_spinlock_irq_unlock(pp_scheduler_job_queue_lock);
+
+ _mali_osk_wq_schedule_work(pp_scheduler_wq_job_queue);
+}
+
+static void mali_pp_scheduler_do_job_queue(void *arg)
+{
+ _MALI_OSK_LIST_HEAD_STATIC_INIT(list);
+ struct mali_pp_job *job;
+ struct mali_pp_job *tmp;
+ mali_scheduler_mask schedule_mask = MALI_SCHEDULER_MASK_EMPTY;
+
+ MALI_IGNORE(arg);
+
+ _mali_osk_spinlock_irq_lock(pp_scheduler_job_queue_lock);
+
+ /*
+ * Quickly "unhook" the jobs pending to be queued, so we can release the lock before
+ * we start queueing the job objects (without any locks held)
+ */
+ _mali_osk_list_move_list(&pp_scheduler_job_queue_list, &list);
+
+ _mali_osk_spinlock_irq_unlock(pp_scheduler_job_queue_lock);
+
+ _MALI_OSK_LIST_FOREACHENTRY(job, tmp, &list, struct mali_pp_job, list) {
+ _mali_osk_list_delinit(&job->list);
+ schedule_mask |= mali_pp_scheduler_queue_job(job);
+ }
+
+ mali_scheduler_schedule_from_mask(schedule_mask, MALI_FALSE);
+}
+
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE) */
+
+MALI_STATIC_INLINE mali_bool mali_pp_scheduler_has_virtual_group(void)
+{
+#if defined(CONFIG_MALI450)
+ return NULL != virtual_group;
+#else
+ return MALI_FALSE;
+#endif /* defined(CONFIG_MALI450) */
+}
+
+_mali_osk_errcode_t mali_pp_scheduler_initialize(void)
+{
+ _MALI_OSK_INIT_LIST_HEAD(&job_queue.normal_pri);
+ _MALI_OSK_INIT_LIST_HEAD(&job_queue.high_pri);
+ job_queue.depth = 0;
+
+ _MALI_OSK_INIT_LIST_HEAD(&virtual_job_queue.normal_pri);
+ _MALI_OSK_INIT_LIST_HEAD(&virtual_job_queue.high_pri);
+ virtual_job_queue.depth = 0;
+
+#if defined(MALI_UPPER_HALF_SCHEDULING)
+ pp_scheduler_lock = _mali_osk_spinlock_irq_init(_MALI_OSK_LOCKFLAG_ORDERED, _MALI_OSK_LOCK_ORDER_SCHEDULER);
+#else
+ pp_scheduler_lock = _mali_osk_spinlock_init(_MALI_OSK_LOCKFLAG_ORDERED, _MALI_OSK_LOCK_ORDER_SCHEDULER);
+#endif /* defined(MALI_UPPER_HALF_SCHEDULING) */
+ if (NULL == pp_scheduler_lock) goto cleanup;
+
+ pp_scheduler_working_wait_queue = _mali_osk_wait_queue_init();
+ if (NULL == pp_scheduler_working_wait_queue) goto cleanup;
+
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE)
+ pp_scheduler_wq_job_delete = _mali_osk_wq_create_work(mali_pp_scheduler_do_job_delete, NULL);
+ if (NULL == pp_scheduler_wq_job_delete) goto cleanup;
+
+ pp_scheduler_job_delete_lock = _mali_osk_spinlock_irq_init(_MALI_OSK_LOCKFLAG_ORDERED, _MALI_OSK_LOCK_ORDER_SCHEDULER_DEFERRED);
+ if (NULL == pp_scheduler_job_delete_lock) goto cleanup;
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE) */
+
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE)
+ pp_scheduler_wq_job_queue = _mali_osk_wq_create_work(mali_pp_scheduler_do_job_queue, NULL);
+ if (NULL == pp_scheduler_wq_job_queue) goto cleanup;
+
+ pp_scheduler_job_queue_lock = _mali_osk_spinlock_irq_init(_MALI_OSK_LOCKFLAG_ORDERED, _MALI_OSK_LOCK_ORDER_SCHEDULER_DEFERRED);
+ if (NULL == pp_scheduler_job_queue_lock) goto cleanup;
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE) */
+
+ return _MALI_OSK_ERR_OK;
+
+cleanup:
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE)
+ if (NULL != pp_scheduler_job_queue_lock) {
+ _mali_osk_spinlock_irq_term(pp_scheduler_job_queue_lock);
+ pp_scheduler_job_queue_lock = NULL;
+ }
+
+ if (NULL != pp_scheduler_wq_job_queue) {
+ _mali_osk_wq_delete_work(pp_scheduler_wq_job_queue);
+ pp_scheduler_wq_job_queue = NULL;
+ }
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE) */
+
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE)
+ if (NULL != pp_scheduler_job_delete_lock) {
+ _mali_osk_spinlock_irq_term(pp_scheduler_job_delete_lock);
+ pp_scheduler_job_delete_lock = NULL;
+ }
+
+ if (NULL != pp_scheduler_wq_job_delete) {
+ _mali_osk_wq_delete_work(pp_scheduler_wq_job_delete);
+ pp_scheduler_wq_job_delete = NULL;
+ }
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE) */
+
+ if (NULL != pp_scheduler_working_wait_queue) {
+ _mali_osk_wait_queue_term(pp_scheduler_working_wait_queue);
+ pp_scheduler_working_wait_queue = NULL;
+ }
+
+ if (NULL != pp_scheduler_lock) {
+#if defined(MALI_UPPER_HALF_SCHEDULING)
+ _mali_osk_spinlock_irq_term(pp_scheduler_lock);
+#else
+ _mali_osk_spinlock_term(pp_scheduler_lock);
+#endif /* defined(MALI_UPPER_HALF_SCHEDULING) */
+ pp_scheduler_lock = NULL;
+ }
+
+ return _MALI_OSK_ERR_NOMEM;
+}
+
+void mali_pp_scheduler_terminate(void)
+{
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE)
+ _mali_osk_spinlock_irq_term(pp_scheduler_job_queue_lock);
+ _mali_osk_wq_delete_work(pp_scheduler_wq_job_queue);
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE) */
+
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE)
+ _mali_osk_spinlock_irq_term(pp_scheduler_job_delete_lock);
+ _mali_osk_wq_delete_work(pp_scheduler_wq_job_delete);
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE) */
+
+ _mali_osk_wait_queue_term(pp_scheduler_working_wait_queue);
+
+#if defined(MALI_UPPER_HALF_SCHEDULING)
+ _mali_osk_spinlock_irq_term(pp_scheduler_lock);
+#else
+ _mali_osk_spinlock_term(pp_scheduler_lock);
+#endif /* defined(MALI_UPPER_HALF_SCHEDULING) */
+}
+
+void mali_pp_scheduler_populate(void)
+{
+ struct mali_group *group;
+ struct mali_pp_core *pp_core;
+ u32 num_groups;
+ u32 i;
+
+ num_groups = mali_group_get_glob_num_groups();
+
+ /* Do we have a virtual group? */
+ for (i = 0; i < num_groups; i++) {
+ group = mali_group_get_glob_group(i);
+
+ if (mali_group_is_virtual(group)) {
+ MALI_DEBUG_PRINT(3, ("Mali PP scheduler: Found virtual group %p.\n", group));
+
+ virtual_group = group;
+ break;
+ }
+ }
+
+ /* Find all the available PP cores */
+ for (i = 0; i < num_groups; i++) {
+ group = mali_group_get_glob_group(i);
+ pp_core = mali_group_get_pp_core(group);
+
+ if (NULL != pp_core && !mali_group_is_virtual(group)) {
+ if (0 == pp_version) {
+ /* Retrieve PP version from the first available PP core */
+ pp_version = mali_pp_core_get_version(pp_core);
+ }
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ /* Add all physical PP cores to the virtual group */
+ mali_group_lock(virtual_group);
+ group->state = MALI_GROUP_STATE_JOINING_VIRTUAL;
+ mali_group_add_group(virtual_group, group, MALI_TRUE);
+ mali_group_unlock(virtual_group);
+ } else {
+ _mali_osk_list_add(&group->pp_scheduler_list, &group_list_idle);
+ }
+
+ num_cores++;
+ }
+ }
+
+ enabled_cores = num_cores;
+}
+
+void mali_pp_scheduler_depopulate(void)
+{
+ struct mali_group *group, *temp;
+
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&group_list_working));
+ MALI_DEBUG_ASSERT(VIRTUAL_GROUP_WORKING != virtual_group_state);
+
+ /* Delete all groups owned by scheduler */
+ if (mali_pp_scheduler_has_virtual_group()) {
+ mali_group_delete(virtual_group);
+ }
+
+ _MALI_OSK_LIST_FOREACHENTRY(group, temp, &group_list_idle, struct mali_group, pp_scheduler_list) {
+ mali_group_delete(group);
+ }
+ _MALI_OSK_LIST_FOREACHENTRY(group, temp, &group_list_disabled, struct mali_group, pp_scheduler_list) {
+ mali_group_delete(group);
+ }
+}
+
+MALI_STATIC_INLINE void mali_pp_scheduler_disable_empty_virtual(void)
+{
+ MALI_ASSERT_GROUP_LOCKED(virtual_group);
+
+ if (mali_group_virtual_disable_if_empty(virtual_group)) {
+ MALI_DEBUG_PRINT(4, ("Disabling empty virtual group\n"));
+
+ MALI_DEBUG_ASSERT(VIRTUAL_GROUP_IDLE == virtual_group_state);
+
+ virtual_group_state = VIRTUAL_GROUP_DISABLED;
+ }
+}
+
+MALI_STATIC_INLINE void mali_pp_scheduler_enable_empty_virtual(void)
+{
+ MALI_ASSERT_GROUP_LOCKED(virtual_group);
+
+ if (mali_group_virtual_enable_if_empty(virtual_group)) {
+ MALI_DEBUG_PRINT(4, ("Re-enabling empty virtual group\n"));
+
+ MALI_DEBUG_ASSERT(VIRTUAL_GROUP_DISABLED == virtual_group_state);
+
+ virtual_group_state = VIRTUAL_GROUP_IDLE;
+ }
+}
+
+static struct mali_pp_job *mali_pp_scheduler_get_job(struct mali_pp_scheduler_job_queue *queue)
+{
+ struct mali_pp_job *job = NULL;
+
+ MALI_ASSERT_PP_SCHEDULER_LOCKED();
+ MALI_DEBUG_ASSERT_POINTER(queue);
+
+ /* Check if we have a normal priority job. */
+ if (!_mali_osk_list_empty(&queue->normal_pri)) {
+ MALI_DEBUG_ASSERT(queue->depth > 0);
+ job = _MALI_OSK_LIST_ENTRY(queue->normal_pri.next, struct mali_pp_job, list);
+ }
+
+ /* Prefer normal priority job if it is in progress. */
+ if (NULL != job && 0 < job->sub_jobs_started) {
+ return job;
+ }
+
+ /* Check if we have a high priority job. */
+ if (!_mali_osk_list_empty(&queue->high_pri)) {
+ MALI_DEBUG_ASSERT(queue->depth > 0);
+ job = _MALI_OSK_LIST_ENTRY(queue->high_pri.next, struct mali_pp_job, list);
+ }
+
+ return job;
+}
+
+/**
+ * Returns a physical job if a physical job is ready to run
+ */
+MALI_STATIC_INLINE struct mali_pp_job *mali_pp_scheduler_get_physical_job(void)
+{
+ MALI_ASSERT_PP_SCHEDULER_LOCKED();
+ return mali_pp_scheduler_get_job(&job_queue);
+}
+
+MALI_STATIC_INLINE void mali_pp_scheduler_dequeue_physical_job(struct mali_pp_job *job)
+{
+ MALI_ASSERT_PP_SCHEDULER_LOCKED();
+ MALI_DEBUG_ASSERT(job_queue.depth > 0);
+
+ /* Remove job from queue */
+ if (!mali_pp_job_has_unstarted_sub_jobs(job)) {
+ /* All sub jobs have been started: remove job from queue */
+ _mali_osk_list_delinit(&job->list);
+ _mali_osk_list_delinit(&job->session_fb_lookup_list);
+ }
+
+ --job_queue.depth;
+}
+
+/**
+ * Returns a virtual job if a virtual job is ready to run
+ */
+MALI_STATIC_INLINE struct mali_pp_job *mali_pp_scheduler_get_virtual_job(void)
+{
+ MALI_ASSERT_PP_SCHEDULER_LOCKED();
+ MALI_DEBUG_ASSERT_POINTER(virtual_group);
+ return mali_pp_scheduler_get_job(&virtual_job_queue);
+}
+
+MALI_STATIC_INLINE void mali_pp_scheduler_dequeue_virtual_job(struct mali_pp_job *job)
+{
+ MALI_ASSERT_PP_SCHEDULER_LOCKED();
+ MALI_DEBUG_ASSERT(virtual_job_queue.depth > 0);
+
+ /* Remove job from queue */
+ _mali_osk_list_delinit(&job->list);
+ _mali_osk_list_delinit(&job->session_fb_lookup_list);
+ --virtual_job_queue.depth;
+}
+
+/**
+ * Checks if the criteria is met for removing a physical core from virtual group
+ */
+MALI_STATIC_INLINE mali_bool mali_pp_scheduler_can_move_virtual_to_physical(void)
+{
+ MALI_ASSERT_PP_SCHEDULER_LOCKED();
+ MALI_DEBUG_ASSERT(mali_pp_scheduler_has_virtual_group());
+ MALI_ASSERT_GROUP_LOCKED(virtual_group);
+ /*
+ * The criteria for taking out a physical group from a virtual group are the following:
+ * - There virtual group is idle
+ * - There are currently no physical groups (idle and working)
+ * - There are physical jobs to be scheduled
+ */
+ return (VIRTUAL_GROUP_IDLE == virtual_group_state) &&
+ _mali_osk_list_empty(&group_list_idle) &&
+ _mali_osk_list_empty(&group_list_working) &&
+ (NULL != mali_pp_scheduler_get_physical_job());
+}
+
+MALI_STATIC_INLINE struct mali_group *mali_pp_scheduler_acquire_physical_group(void)
+{
+ MALI_ASSERT_PP_SCHEDULER_LOCKED();
+
+ if (!_mali_osk_list_empty(&group_list_idle)) {
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Acquiring physical group from idle list.\n"));
+ return _MALI_OSK_LIST_ENTRY(group_list_idle.next, struct mali_group, pp_scheduler_list);
+ } else if (mali_pp_scheduler_has_virtual_group()) {
+ MALI_ASSERT_GROUP_LOCKED(virtual_group);
+ if (mali_pp_scheduler_can_move_virtual_to_physical()) {
+ struct mali_group *group;
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Acquiring physical group from virtual group.\n"));
+ group = mali_group_acquire_group(virtual_group);
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ mali_pp_scheduler_disable_empty_virtual();
+ }
+
+ return group;
+ }
+ }
+
+ return NULL;
+}
+
+static void mali_pp_scheduler_return_job_to_user(struct mali_pp_job *job, mali_bool deferred)
+{
+ if (MALI_FALSE == mali_pp_job_use_no_notification(job)) {
+ u32 i;
+ u32 num_counters_to_copy;
+ mali_bool success = mali_pp_job_was_success(job);
+
+ _mali_uk_pp_job_finished_s *jobres = job->finished_notification->result_buffer;
+ _mali_osk_memset(jobres, 0, sizeof(_mali_uk_pp_job_finished_s)); /* @@@@ can be removed once we initialize all members in this struct */
+ jobres->user_job_ptr = mali_pp_job_get_user_id(job);
+ if (MALI_TRUE == success) {
+ jobres->status = _MALI_UK_JOB_STATUS_END_SUCCESS;
+ } else {
+ jobres->status = _MALI_UK_JOB_STATUS_END_UNKNOWN_ERR;
+ }
+
+ if (mali_pp_job_is_virtual(job)) {
+ num_counters_to_copy = num_cores; /* Number of physical cores available */
+ } else {
+ num_counters_to_copy = mali_pp_job_get_sub_job_count(job);
+ }
+
+ for (i = 0; i < num_counters_to_copy; i++) {
+ jobres->perf_counter0[i] = mali_pp_job_get_perf_counter_value0(job, i);
+ jobres->perf_counter1[i] = mali_pp_job_get_perf_counter_value1(job, i);
+ jobres->perf_counter_src0 = mali_pp_job_get_pp_counter_global_src0();
+ jobres->perf_counter_src1 = mali_pp_job_get_pp_counter_global_src1();
+ }
+
+ mali_session_send_notification(mali_pp_job_get_session(job), job->finished_notification);
+ job->finished_notification = NULL;
+ }
+
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE)
+ if (MALI_TRUE == deferred) {
+ /* The deletion of the job object (releasing sync refs etc) must be done in a different context */
+ mali_pp_scheduler_deferred_job_delete(job);
+ } else {
+ mali_pp_job_delete(job);
+ }
+#else
+ MALI_DEBUG_ASSERT(MALI_FALSE == deferred); /* no use cases need this in this configuration */
+ mali_pp_job_delete(job);
+#endif
+}
+
+static void mali_pp_scheduler_finalize_job(struct mali_pp_job * job)
+{
+ /* This job object should not be on any lists. */
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->list));
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->session_list));
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->session_fb_lookup_list));
+
+ /* Send notification back to user space */
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE)
+ mali_pp_scheduler_return_job_to_user(job, MALI_TRUE);
+#else
+ mali_pp_scheduler_return_job_to_user(job, MALI_FALSE);
+#endif
+
+#if defined(CONFIG_MALI400_POWER_PERFORMANCE_POLICY)
+ if (_MALI_PP_JOB_FLAG_IS_WINDOW_SURFACE & job->uargs.flags) {
+ _mali_osk_atomic_inc(&job->session->number_of_window_jobs);
+ }
+#endif
+
+ mali_pp_scheduler_job_completed();
+}
+
+void mali_pp_scheduler_schedule(void)
+{
+ struct mali_group* physical_groups_to_start[MALI_MAX_NUMBER_OF_PP_GROUPS - 1];
+ struct mali_pp_job* physical_jobs_to_start[MALI_MAX_NUMBER_OF_PP_GROUPS - 1];
+ u32 physical_sub_jobs_to_start[MALI_MAX_NUMBER_OF_PP_GROUPS - 1];
+ int num_physical_jobs_to_start = 0;
+ int i;
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ /* Lock the virtual group since we might have to grab physical groups. */
+ mali_group_lock(virtual_group);
+ }
+
+ mali_pp_scheduler_lock();
+ if (pause_count > 0) {
+ /* Scheduler is suspended, don't schedule any jobs. */
+ mali_pp_scheduler_unlock();
+ if (mali_pp_scheduler_has_virtual_group()) {
+ mali_group_unlock(virtual_group);
+ }
+ return;
+ }
+
+ /* Find physical job(s) to schedule first. */
+ while (1) {
+ struct mali_group *group;
+ struct mali_pp_job *job;
+ u32 sub_job;
+
+ job = mali_pp_scheduler_get_physical_job();
+ if (NULL == job) {
+ break; /* No job, early out. */
+ }
+
+ if (mali_scheduler_hint_is_enabled(MALI_SCHEDULER_HINT_GP_BOUND) &&
+ mali_pp_job_is_large_and_unstarted(job) && !_mali_osk_list_empty(&group_list_working)) {
+ /* Since not all groups are idle, don't schedule yet. */
+ break;
+ }
+
+ MALI_DEBUG_ASSERT(!mali_pp_job_is_virtual(job));
+ MALI_DEBUG_ASSERT(mali_pp_job_has_unstarted_sub_jobs(job));
+ MALI_DEBUG_ASSERT(1 <= mali_pp_job_get_sub_job_count(job));
+
+ /* Acquire a physical group, either from the idle list or from the virtual group.
+ * In case the group was acquired from the virtual group, it's state will be
+ * LEAVING_VIRTUAL and must be set to IDLE before it can be used. */
+ group = mali_pp_scheduler_acquire_physical_group();
+ if (NULL == group) {
+ /* Could not get a group to run the job on, early out. */
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: No more physical groups available.\n"));
+ break;
+ }
+
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Acquired physical group %p.\n", group));
+
+ /* Mark sub job as started. */
+ sub_job = mali_pp_job_get_first_unstarted_sub_job(job);
+ mali_pp_job_mark_sub_job_started(job, sub_job);
+
+ /* Remove job from queue (if this was the last sub job). */
+ mali_pp_scheduler_dequeue_physical_job(job);
+
+ /* Move group to working list. */
+ _mali_osk_list_move(&(group->pp_scheduler_list), &group_list_working);
+
+ /* Keep track of this group, so that we actually can start the job once we are done with the scheduler lock we are now holding. */
+ physical_groups_to_start[num_physical_jobs_to_start] = group;
+ physical_jobs_to_start[num_physical_jobs_to_start] = job;
+ physical_sub_jobs_to_start[num_physical_jobs_to_start] = sub_job;
+ ++num_physical_jobs_to_start;
+
+ MALI_DEBUG_ASSERT(num_physical_jobs_to_start < MALI_MAX_NUMBER_OF_PP_GROUPS);
+ }
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ if (VIRTUAL_GROUP_IDLE == virtual_group_state) {
+ /* We have a virtual group and it is idle. */
+
+ struct mali_pp_job *job;
+
+ /* Find a virtual job we can start. */
+ job = mali_pp_scheduler_get_virtual_job();
+
+ if (NULL != job) {
+ MALI_DEBUG_ASSERT(mali_pp_job_is_virtual(job));
+ MALI_DEBUG_ASSERT(mali_pp_job_has_unstarted_sub_jobs(job));
+ MALI_DEBUG_ASSERT(1 == mali_pp_job_get_sub_job_count(job));
+
+ /* Mark the one and only sub job as started. */
+ mali_pp_job_mark_sub_job_started(job, 0);
+
+ /* Remove job from queue. */
+ mali_pp_scheduler_dequeue_virtual_job(job);
+
+ /* Virtual group is now working. */
+ virtual_group_state = VIRTUAL_GROUP_WORKING;
+
+ /* We no longer need the scheduler lock, but we still need the virtual lock
+ * in order to start the virtual job. */
+ mali_pp_scheduler_unlock();
+
+ /* Start job. */
+ mali_group_start_pp_job(virtual_group, job, 0);
+
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Virtual job %u (0x%08X) part %u/%u started (from schedule).\n",
+ mali_pp_job_get_id(job), job, 1,
+ mali_pp_job_get_sub_job_count(job)));
+
+ mali_group_unlock(virtual_group);
+ } else {
+ /* No virtual job to start. */
+ mali_pp_scheduler_unlock();
+ mali_group_unlock(virtual_group);
+ }
+ } else {
+ /* We have a virtual group, but it is busy or disabled. */
+ MALI_DEBUG_ASSERT(VIRTUAL_GROUP_IDLE != virtual_group_state);
+
+ mali_pp_scheduler_unlock();
+ mali_group_unlock(virtual_group);
+ }
+ } else {
+ /* There is no virtual group. */
+ mali_pp_scheduler_unlock();
+ }
+
+ /* We have now released the scheduler lock, and we are ready to start the physical jobs.
+ * The reason we want to wait until we have released the scheduler lock is that job start
+ * may take quite a bit of time (many registers have to be written). This will allow new
+ * jobs from user space to come in, and post-processing of other PP jobs to happen at the
+ * same time as we start jobs. */
+ for (i = 0; i < num_physical_jobs_to_start; i++) {
+ struct mali_group *group = physical_groups_to_start[i];
+ struct mali_pp_job *job = physical_jobs_to_start[i];
+ u32 sub_job = physical_sub_jobs_to_start[i];
+
+ MALI_DEBUG_ASSERT_POINTER(group);
+ MALI_DEBUG_ASSERT_POINTER(job);
+ MALI_DEBUG_ASSERT(!mali_group_is_virtual(group));
+ MALI_DEBUG_ASSERT(!mali_pp_job_is_virtual(job));
+
+ mali_group_lock(group);
+
+ /* Set state to IDLE if group was acquired from the virtual group. */
+ group->state = MALI_GROUP_STATE_IDLE;
+
+ mali_group_start_pp_job(group, job, sub_job);
+
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Physical job %u (0x%08X) part %u/%u started (from schedule).\n",
+ mali_pp_job_get_id(job), job, sub_job + 1,
+ mali_pp_job_get_sub_job_count(job)));
+
+ mali_group_unlock(group);
+ }
+}
+
+/**
+ * Set group idle.
+ *
+ * If @ref group is the virtual group, nothing is done since the virtual group should be idle
+ * already.
+ *
+ * If @ref group is a physical group we rejoin the virtual group, if it exists. If not, we move the
+ * physical group to the idle list.
+ *
+ * @note The group and the scheduler must both be locked when entering this function. Both will be
+ * unlocked before exiting.
+ *
+ * @param group The group to set idle.
+ */
+static void mali_pp_scheduler_set_group_idle_and_unlock(struct mali_group *group)
+{
+ MALI_DEBUG_ASSERT_POINTER(group);
+
+ MALI_ASSERT_GROUP_LOCKED(group);
+ MALI_DEBUG_ASSERT_LOCK_HELD(pp_scheduler_lock);
+
+ if (mali_group_is_virtual(group)) {
+ /* The virtual group should have been set to non-working already. */
+ MALI_DEBUG_ASSERT(VIRTUAL_GROUP_IDLE == virtual_group_state);
+
+ mali_pp_scheduler_unlock();
+ mali_group_unlock(group);
+
+ return;
+ } else {
+ if (mali_pp_scheduler_has_virtual_group()) {
+ /* Rejoin virtual group. */
+
+ /* We're no longer needed on the scheduler list. */
+ _mali_osk_list_delinit(&(group->pp_scheduler_list));
+
+ /* Make sure no interrupts are handled for this group during the transition
+ * from physical to virtual. */
+ group->state = MALI_GROUP_STATE_JOINING_VIRTUAL;
+
+ mali_pp_scheduler_unlock();
+ mali_group_unlock(group);
+
+ mali_group_lock(virtual_group);
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ mali_pp_scheduler_enable_empty_virtual();
+ }
+
+ /* We need to recheck the group state since it is possible that someone has
+ * modified the group before we locked the virtual group. */
+ if (MALI_GROUP_STATE_JOINING_VIRTUAL == group->state) {
+ mali_group_add_group(virtual_group, group, MALI_TRUE);
+ }
+
+ mali_group_unlock(virtual_group);
+ } else {
+ /* Move physical group back to idle list. */
+ _mali_osk_list_move(&(group->pp_scheduler_list), &group_list_idle);
+
+#if defined(CONFIG_GPU_TRACEPOINTS) && defined(CONFIG_TRACEPOINTS)
+ trace_gpu_sched_switch(mali_pp_get_hw_core_desc(group->pp_core), sched_clock(), 0, 0, 0);
+#endif
+
+ mali_pp_scheduler_unlock();
+ mali_group_unlock(group);
+ }
+ }
+}
+
+/**
+ * Schedule job on locked group.
+ *
+ * @note The group and the scheduler must both be locked when entering this function. Both will be
+ * unlocked before exiting.
+ *
+ * @param group The group to schedule on.
+ */
+static void mali_pp_scheduler_schedule_on_group_and_unlock(struct mali_group *group)
+{
+ MALI_DEBUG_ASSERT_POINTER(group);
+
+ MALI_ASSERT_GROUP_LOCKED(group);
+ MALI_DEBUG_ASSERT_LOCK_HELD(pp_scheduler_lock);
+
+ if (mali_group_is_virtual(group)) {
+ /* Now that the virtual group is idle, check if we should reconfigure. */
+
+ struct mali_pp_job *virtual_job = NULL;
+ struct mali_pp_job *physical_job = NULL;
+ struct mali_group *physical_group = NULL;
+ u32 physical_sub_job = 0;
+
+ MALI_DEBUG_ASSERT(VIRTUAL_GROUP_IDLE == virtual_group_state);
+
+ if (mali_pp_scheduler_can_move_virtual_to_physical()) {
+ /* There is a runnable physical job and we can acquire a physical group. */
+ physical_job = mali_pp_scheduler_get_physical_job();
+ MALI_DEBUG_ASSERT_POINTER(physical_job);
+ MALI_DEBUG_ASSERT(mali_pp_job_has_unstarted_sub_jobs(physical_job));
+
+ /* Mark sub job as started. */
+ physical_sub_job = mali_pp_job_get_first_unstarted_sub_job(physical_job);
+ mali_pp_job_mark_sub_job_started(physical_job, physical_sub_job);
+
+ /* Remove job from queue (if this was the last sub job). */
+ mali_pp_scheduler_dequeue_physical_job(physical_job);
+
+ /* Acquire a physical group from the virtual group. Its state will
+ * be LEAVING_VIRTUAL and must be set to IDLE before it can be
+ * used. */
+ physical_group = mali_group_acquire_group(virtual_group);
+
+ /* Move physical group to the working list, as we will soon start a job on it. */
+ _mali_osk_list_move(&(physical_group->pp_scheduler_list), &group_list_working);
+
+ mali_pp_scheduler_disable_empty_virtual();
+ }
+
+ /* Get next virtual job. */
+ virtual_job = mali_pp_scheduler_get_virtual_job();
+ if (NULL != virtual_job && VIRTUAL_GROUP_IDLE == virtual_group_state) {
+ /* There is a runnable virtual job. */
+
+ MALI_DEBUG_ASSERT(mali_pp_job_is_virtual(virtual_job));
+ MALI_DEBUG_ASSERT(mali_pp_job_has_unstarted_sub_jobs(virtual_job));
+ MALI_DEBUG_ASSERT(1 == mali_pp_job_get_sub_job_count(virtual_job));
+
+ mali_pp_job_mark_sub_job_started(virtual_job, 0);
+
+ /* Remove job from queue. */
+ mali_pp_scheduler_dequeue_virtual_job(virtual_job);
+
+ /* Virtual group is now working. */
+ virtual_group_state = VIRTUAL_GROUP_WORKING;
+
+ mali_pp_scheduler_unlock();
+
+ /* Start job. */
+ mali_group_start_pp_job(group, virtual_job, 0);
+
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Virtual job %u (0x%08X) part %u/%u started (from job_done).\n",
+ mali_pp_job_get_id(virtual_job), virtual_job, 1,
+ mali_pp_job_get_sub_job_count(virtual_job)));
+ } else {
+#if defined(CONFIG_GPU_TRACEPOINTS) && defined(CONFIG_TRACEPOINTS)
+ trace_gpu_sched_switch("Mali_Virtual_PP", sched_clock(), 0, 0, 0);
+#endif
+
+ mali_pp_scheduler_unlock();
+ }
+
+ /* Releasing the virtual group lock that was held when entering the function. */
+ mali_group_unlock(group);
+
+ /* Start a physical job (if we acquired a physical group earlier). */
+ if (NULL != physical_job && NULL != physical_group) {
+ mali_group_lock(physical_group);
+
+ /* Change the group state from LEAVING_VIRTUAL to IDLE to complete the transition. */
+ physical_group->state = MALI_GROUP_STATE_IDLE;
+
+ /* Start job. */
+ mali_group_start_pp_job(physical_group, physical_job, physical_sub_job);
+
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Physical job %u (0x%08X) part %u/%u started (from job_done).\n",
+ mali_pp_job_get_id(physical_job), physical_job, physical_sub_job + 1,
+ mali_pp_job_get_sub_job_count(physical_job)));
+
+ mali_group_unlock(physical_group);
+ }
+ } else {
+ /* Physical group. */
+ struct mali_pp_job *job = NULL;
+ u32 sub_job = 0;
+
+ job = mali_pp_scheduler_get_physical_job();
+ if (NULL != job) {
+ /* There is a runnable physical job. */
+ MALI_DEBUG_ASSERT(mali_pp_job_has_unstarted_sub_jobs(job));
+
+ /* Mark sub job as started. */
+ sub_job = mali_pp_job_get_first_unstarted_sub_job(job);
+ mali_pp_job_mark_sub_job_started(job, sub_job);
+
+ /* Remove job from queue (if this was the last sub job). */
+ mali_pp_scheduler_dequeue_physical_job(job);
+
+ mali_pp_scheduler_unlock();
+
+ /* Group is already on the working list, so start the new job. */
+ mali_group_start_pp_job(group, job, sub_job);
+
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Physical job %u (0x%08X) part %u/%u started (from job_done).\n",
+ mali_pp_job_get_id(job), job, sub_job + 1, mali_pp_job_get_sub_job_count(job)));
+
+ mali_group_unlock(group);
+ } else {
+ mali_pp_scheduler_set_group_idle_and_unlock(group);
+ }
+ }
+}
+
+void mali_pp_scheduler_job_done(struct mali_group *group, struct mali_pp_job *job, u32 sub_job, mali_bool success, mali_bool in_upper_half)
+{
+ mali_bool job_is_done = MALI_FALSE;
+ mali_bool schedule_on_group = MALI_FALSE;
+ mali_scheduler_mask schedule_mask = MALI_SCHEDULER_MASK_EMPTY;
+
+ MALI_DEBUG_PRINT(3, ("Mali PP scheduler: %s job %u (0x%08X) part %u/%u completed (%s).\n",
+ mali_pp_job_is_virtual(job) ? "Virtual" : "Physical",
+ mali_pp_job_get_id(job),
+ job, sub_job + 1,
+ mali_pp_job_get_sub_job_count(job),
+ success ? "success" : "failure"));
+
+ MALI_ASSERT_GROUP_LOCKED(group);
+ mali_pp_scheduler_lock();
+
+ mali_pp_job_mark_sub_job_completed(job, success);
+
+ MALI_DEBUG_ASSERT(mali_pp_job_is_virtual(job) == mali_group_is_virtual(group));
+
+ job_is_done = mali_pp_job_is_complete(job);
+
+ if (job_is_done) {
+ /* Job is removed from these lists when the last sub job is scheduled. */
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->list));
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->session_fb_lookup_list));
+
+ /* Remove job from session list. */
+ _mali_osk_list_delinit(&job->session_list);
+
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: All parts completed for %s job %u (0x%08X).\n",
+ mali_pp_job_is_virtual(job) ? "virtual" : "physical",
+ mali_pp_job_get_id(job), job));
+
+ mali_pp_scheduler_unlock();
+
+ /* Release tracker. If other trackers are waiting on this tracker, this could
+ * trigger activation. The returned scheduling mask can be used to determine if we
+ * have to schedule GP, PP or both. */
+ schedule_mask = mali_timeline_tracker_release(&job->tracker);
+
+ mali_pp_scheduler_lock();
+ }
+
+ if (mali_group_is_virtual(group)) {
+ /* Obey the policy. */
+ virtual_group_state = VIRTUAL_GROUP_IDLE;
+ }
+
+ /* If paused, then this was the last job, so wake up sleeping workers and return. */
+ if (pause_count > 0) {
+ /* Wake up sleeping workers. Their wake-up condition is that
+ * num_slots == num_slots_idle, so unless we are done working, no
+ * threads will actually be woken up.
+ */
+ if (!mali_group_is_virtual(group)) {
+ /* Move physical group to idle list. */
+ _mali_osk_list_move(&(group->pp_scheduler_list), &group_list_idle);
+ }
+
+#if defined(CONFIG_GPU_TRACEPOINTS) && defined(CONFIG_TRACEPOINTS)
+ trace_gpu_sched_switch(mali_pp_get_hw_core_desc(group->pp_core), sched_clock(), 0, 0, 0);
+#endif
+
+ _mali_osk_wait_queue_wake_up(pp_scheduler_working_wait_queue);
+
+ mali_pp_scheduler_unlock();
+ mali_group_unlock(group);
+
+ if (job_is_done) {
+ /* Return job to user and delete it. */
+ mali_pp_scheduler_finalize_job(job);
+ }
+
+ /* A GP job might be queued by tracker release above,
+ * make sure GP scheduler gets a chance to schedule this (if possible)
+ */
+ mali_scheduler_schedule_from_mask(schedule_mask & ~MALI_SCHEDULER_MASK_PP, in_upper_half);
+
+ return;
+ }
+
+ /* Since this group just finished running a job, we can reschedule a new job on it
+ * immediately. */
+
+ /* By default, don't schedule on group. */
+ schedule_on_group = MALI_FALSE;
+
+ if (mali_group_is_virtual(group)) {
+ /* Always schedule immediately on virtual group. */
+ schedule_mask &= ~MALI_SCHEDULER_MASK_PP;
+ schedule_on_group = MALI_TRUE;
+ } else if (0 < job_queue.depth && (!mali_scheduler_mask_is_set(schedule_mask, MALI_SCHEDULER_MASK_PP) || _mali_osk_list_empty(&group_list_idle))) {
+ struct mali_pp_job *next_job = NULL;
+
+ next_job = mali_pp_scheduler_get_physical_job();
+ MALI_DEBUG_ASSERT_POINTER(next_job);
+
+ /* If no new jobs have been queued or if this group is the only idle group, we can
+ * schedule immediately on this group, unless we are GP bound and the next job would
+ * benefit from all its sub jobs being started concurrently. */
+
+ if (mali_scheduler_hint_is_enabled(MALI_SCHEDULER_HINT_GP_BOUND) && mali_pp_job_is_large_and_unstarted(next_job)) {
+ /* We are GP bound and the job would benefit from all sub jobs being started
+ * concurrently. Postpone scheduling until after group has been unlocked. */
+ schedule_mask |= MALI_SCHEDULER_MASK_PP;
+ schedule_on_group = MALI_FALSE;
+ } else {
+ /* Schedule job immediately since we are not GP bound. */
+ schedule_mask &= ~MALI_SCHEDULER_MASK_PP;
+ schedule_on_group = MALI_TRUE;
+ }
+ }
+
+ if (schedule_on_group) {
+ /* Schedule a new job on this group. */
+ mali_pp_scheduler_schedule_on_group_and_unlock(group);
+ } else {
+ /* Set group idle. Will rejoin virtual group, under appropriate conditions. */
+ mali_pp_scheduler_set_group_idle_and_unlock(group);
+ }
+
+ if (!schedule_on_group || MALI_SCHEDULER_MASK_EMPTY != schedule_mask) {
+ if (MALI_SCHEDULER_MASK_PP & schedule_mask) {
+ /* Schedule PP directly. */
+ mali_pp_scheduler_schedule();
+ schedule_mask &= ~MALI_SCHEDULER_MASK_PP;
+ }
+
+ /* Schedule other jobs that were activated. */
+ mali_scheduler_schedule_from_mask(schedule_mask, in_upper_half);
+ }
+
+ if (job_is_done) {
+ /* Return job to user and delete it. */
+ mali_pp_scheduler_finalize_job(job);
+ }
+}
+
+void mali_pp_scheduler_suspend(void)
+{
+ mali_pp_scheduler_lock();
+ pause_count++; /* Increment the pause_count so that no more jobs will be scheduled */
+ mali_pp_scheduler_unlock();
+
+ /* Go to sleep. When woken up again (in mali_pp_scheduler_job_done), the
+ * mali_pp_scheduler_suspended() function will be called. This will return true
+ * if state is idle and pause_count > 0, so if the core is active this
+ * will not do anything.
+ */
+ _mali_osk_wait_queue_wait_event(pp_scheduler_working_wait_queue, mali_pp_scheduler_is_suspended, NULL);
+}
+
+void mali_pp_scheduler_resume(void)
+{
+ mali_pp_scheduler_lock();
+ pause_count--; /* Decrement pause_count to allow scheduling again (if it reaches 0) */
+ mali_pp_scheduler_unlock();
+ if (0 == pause_count) {
+ mali_pp_scheduler_schedule();
+ }
+}
+
+mali_timeline_point mali_pp_scheduler_submit_job(struct mali_session_data *session, struct mali_pp_job *job)
+{
+ mali_timeline_point point;
+ u32 fb_lookup_id = 0;
+
+ MALI_DEBUG_ASSERT_POINTER(session);
+ MALI_DEBUG_ASSERT_POINTER(job);
+
+ mali_pp_scheduler_lock();
+
+ fb_lookup_id = mali_pp_job_get_fb_lookup_id(job);
+ MALI_DEBUG_ASSERT(MALI_PP_JOB_FB_LOOKUP_LIST_SIZE > fb_lookup_id);
+
+ /* Adding job to the lookup list used to quickly discard writeback units of queued jobs. */
+ _mali_osk_list_addtail(&job->session_fb_lookup_list, &session->pp_job_fb_lookup_list[fb_lookup_id]);
+
+ mali_pp_scheduler_unlock();
+
+ /* We hold a PM reference for every job we hold queued (and running) */
+ _mali_osk_pm_dev_ref_add();
+
+ /* Add job to Timeline system. */
+ point = mali_timeline_system_add_tracker(session->timeline_system, &job->tracker, MALI_TIMELINE_PP);
+
+ return point;
+}
+
+_mali_osk_errcode_t _mali_ukk_pp_start_job(void *ctx, _mali_uk_pp_start_job_s *uargs)
+{
+ struct mali_session_data *session;
+ struct mali_pp_job *job;
+ mali_timeline_point point;
+ u32 __user *timeline_point_ptr = NULL;
+
+ MALI_DEBUG_ASSERT_POINTER(uargs);
+ MALI_DEBUG_ASSERT_POINTER(ctx);
+
+ session = (struct mali_session_data*)ctx;
+
+ job = mali_pp_job_create(session, uargs, mali_scheduler_get_new_id());
+ if (NULL == job) {
+ MALI_PRINT_ERROR(("Failed to create PP job.\n"));
+ return _MALI_OSK_ERR_NOMEM;
+ }
+
+ timeline_point_ptr = (u32 __user *) job->uargs.timeline_point_ptr;
+
+ point = mali_pp_scheduler_submit_job(session, job);
+ job = NULL;
+
+ if (0 != _mali_osk_put_user(((u32) point), timeline_point_ptr)) {
+ /* Let user space know that something failed after the job was started. */
+ return _MALI_OSK_ERR_ITEM_NOT_FOUND;
+ }
+
+ return _MALI_OSK_ERR_OK;
+}
+
+_mali_osk_errcode_t _mali_ukk_pp_and_gp_start_job(void *ctx, _mali_uk_pp_and_gp_start_job_s *uargs)
+{
+ struct mali_session_data *session;
+ _mali_uk_pp_and_gp_start_job_s kargs;
+ struct mali_pp_job *pp_job;
+ struct mali_gp_job *gp_job;
+ u32 __user *timeline_point_ptr = NULL;
+ mali_timeline_point point;
+
+ MALI_DEBUG_ASSERT_POINTER(ctx);
+ MALI_DEBUG_ASSERT_POINTER(uargs);
+
+ session = (struct mali_session_data *) ctx;
+
+ if (0 != _mali_osk_copy_from_user(&kargs, uargs, sizeof(_mali_uk_pp_and_gp_start_job_s))) {
+ return _MALI_OSK_ERR_NOMEM;
+ }
+
+ pp_job = mali_pp_job_create(session, kargs.pp_args, mali_scheduler_get_new_id());
+ if (NULL == pp_job) {
+ MALI_PRINT_ERROR(("Failed to create PP job.\n"));
+ return _MALI_OSK_ERR_NOMEM;
+ }
+
+ gp_job = mali_gp_job_create(session, kargs.gp_args, mali_scheduler_get_new_id(), mali_pp_job_get_tracker(pp_job));
+ if (NULL == gp_job) {
+ MALI_PRINT_ERROR(("Failed to create GP job.\n"));
+ mali_pp_job_delete(pp_job);
+ return _MALI_OSK_ERR_NOMEM;
+ }
+
+ timeline_point_ptr = (u32 __user *) pp_job->uargs.timeline_point_ptr;
+
+ /* Submit GP job. */
+ mali_gp_scheduler_submit_job(session, gp_job);
+ gp_job = NULL;
+
+ /* Submit PP job. */
+ point = mali_pp_scheduler_submit_job(session, pp_job);
+ pp_job = NULL;
+
+ if (0 != _mali_osk_put_user(((u32) point), timeline_point_ptr)) {
+ /* Let user space know that something failed after the jobs were started. */
+ return _MALI_OSK_ERR_ITEM_NOT_FOUND;
+ }
+
+ return _MALI_OSK_ERR_OK;
+}
+
+_mali_osk_errcode_t _mali_ukk_get_pp_number_of_cores(_mali_uk_get_pp_number_of_cores_s *args)
+{
+ MALI_DEBUG_ASSERT_POINTER(args);
+ MALI_DEBUG_ASSERT_POINTER(args->ctx);
+ args->number_of_total_cores = num_cores;
+ args->number_of_enabled_cores = enabled_cores;
+ return _MALI_OSK_ERR_OK;
+}
+
+u32 mali_pp_scheduler_get_num_cores_total(void)
+{
+ return num_cores;
+}
+
+u32 mali_pp_scheduler_get_num_cores_enabled(void)
+{
+ return enabled_cores;
+}
+
+_mali_osk_errcode_t _mali_ukk_get_pp_core_version(_mali_uk_get_pp_core_version_s *args)
+{
+ MALI_DEBUG_ASSERT_POINTER(args);
+ MALI_DEBUG_ASSERT_POINTER(args->ctx);
+ args->version = pp_version;
+ return _MALI_OSK_ERR_OK;
+}
+
+void _mali_ukk_pp_job_disable_wb(_mali_uk_pp_disable_wb_s *args)
+{
+ struct mali_session_data *session;
+ struct mali_pp_job *job;
+ struct mali_pp_job *tmp;
+ u32 fb_lookup_id;
+
+ MALI_DEBUG_ASSERT_POINTER(args);
+ MALI_DEBUG_ASSERT_POINTER(args->ctx);
+
+ session = (struct mali_session_data*)args->ctx;
+
+ fb_lookup_id = args->fb_id & MALI_PP_JOB_FB_LOOKUP_LIST_MASK;
+
+ mali_pp_scheduler_lock();
+
+ /* Iterate over all jobs for given frame builder_id. */
+ _MALI_OSK_LIST_FOREACHENTRY(job, tmp, &session->pp_job_fb_lookup_list[fb_lookup_id], struct mali_pp_job, session_fb_lookup_list) {
+ MALI_DEBUG_CODE(u32 disable_mask = 0);
+
+ if (mali_pp_job_get_frame_builder_id(job) == (u32) args->fb_id) {
+ MALI_DEBUG_CODE(disable_mask |= 0xD<<(4*3));
+ if (args->wb0_memory == job->uargs.wb0_registers[MALI200_REG_ADDR_WB_SOURCE_ADDR/sizeof(u32)]) {
+ MALI_DEBUG_CODE(disable_mask |= 0x1<<(4*1));
+ mali_pp_job_disable_wb0(job);
+ }
+ if (args->wb1_memory == job->uargs.wb1_registers[MALI200_REG_ADDR_WB_SOURCE_ADDR/sizeof(u32)]) {
+ MALI_DEBUG_CODE(disable_mask |= 0x2<<(4*2));
+ mali_pp_job_disable_wb1(job);
+ }
+ if (args->wb2_memory == job->uargs.wb2_registers[MALI200_REG_ADDR_WB_SOURCE_ADDR/sizeof(u32)]) {
+ MALI_DEBUG_CODE(disable_mask |= 0x3<<(4*3));
+ mali_pp_job_disable_wb2(job);
+ }
+ MALI_DEBUG_PRINT(3, ("Mali PP scheduler: Disable WB: 0x%X.\n", disable_mask));
+ } else {
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Disable WB mismatching FB.\n"));
+ }
+ }
+
+ mali_pp_scheduler_unlock();
+}
+
+void mali_pp_scheduler_abort_session(struct mali_session_data *session)
+{
+ u32 i = 0;
+ struct mali_pp_job *job, *tmp_job;
+ struct mali_group *group, *tmp_group;
+ struct mali_group *groups[MALI_MAX_NUMBER_OF_GROUPS];
+ _MALI_OSK_LIST_HEAD_STATIC_INIT(removed_jobs);
+
+ MALI_DEBUG_ASSERT_POINTER(session);
+ MALI_DEBUG_ASSERT(session->is_aborting);
+
+ MALI_DEBUG_PRINT(3, ("Mali PP scheduler: Aborting all jobs from session 0x%08X.\n", session));
+
+ mali_pp_scheduler_lock();
+
+ /* Find all jobs from the aborting session. */
+ _MALI_OSK_LIST_FOREACHENTRY(job, tmp_job, &session->pp_job_list, struct mali_pp_job, session_list) {
+ /* Remove job from queue. */
+ if (mali_pp_job_is_virtual(job)) {
+ MALI_DEBUG_ASSERT(1 == mali_pp_job_get_sub_job_count(job));
+ if (0 == mali_pp_job_get_first_unstarted_sub_job(job)) {
+ --virtual_job_queue.depth;
+ }
+ } else {
+ job_queue.depth -= mali_pp_job_get_sub_job_count(job) - mali_pp_job_get_first_unstarted_sub_job(job);
+ }
+
+ _mali_osk_list_delinit(&job->list);
+ _mali_osk_list_delinit(&job->session_fb_lookup_list);
+
+ mali_pp_job_mark_unstarted_failed(job);
+
+ if (mali_pp_job_is_complete(job)) {
+ /* Job is complete, remove from session list. */
+ _mali_osk_list_delinit(&job->session_list);
+
+ /* Move job to local list for release and deletion. */
+ _mali_osk_list_add(&job->list, &removed_jobs);
+
+ MALI_DEBUG_PRINT(3, ("Mali PP scheduler: Aborted PP job %u (0x%08X).\n", mali_pp_job_get_id(job), job));
+ } else {
+ MALI_DEBUG_PRINT(3, ("Mali PP scheduler: Keeping partially started PP job %u (0x%08X) in session.\n", mali_pp_job_get_id(job), job));
+ }
+ }
+
+ _MALI_OSK_LIST_FOREACHENTRY(group, tmp_group, &group_list_working, struct mali_group, pp_scheduler_list) {
+ groups[i++] = group;
+ }
+
+ _MALI_OSK_LIST_FOREACHENTRY(group, tmp_group, &group_list_idle, struct mali_group, pp_scheduler_list) {
+ groups[i++] = group;
+ }
+
+ mali_pp_scheduler_unlock();
+
+ /* Release and delete all found jobs from the aborting session. */
+ _MALI_OSK_LIST_FOREACHENTRY(job, tmp_job, &removed_jobs, struct mali_pp_job, list) {
+ mali_timeline_tracker_release(&job->tracker);
+ mali_pp_job_delete(job);
+ mali_pp_scheduler_job_completed();
+ }
+
+ /* Abort any running jobs from the session. */
+ while (i > 0) {
+ mali_group_abort_session(groups[--i], session);
+ }
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ mali_group_abort_session(virtual_group, session);
+ }
+}
+
+static mali_bool mali_pp_scheduler_is_suspended(void *data)
+{
+ mali_bool ret;
+
+ /* This callback does not use the data pointer. */
+ MALI_IGNORE(data);
+
+ mali_pp_scheduler_lock();
+
+ ret = pause_count > 0
+ && _mali_osk_list_empty(&group_list_working)
+ && VIRTUAL_GROUP_WORKING != virtual_group_state;
+
+ mali_pp_scheduler_unlock();
+
+ return ret;
+}
+
+struct mali_pp_core *mali_pp_scheduler_get_virtual_pp(void)
+{
+ if (mali_pp_scheduler_has_virtual_group()) {
+ return mali_group_get_pp_core(virtual_group);
+ } else {
+ return NULL;
+ }
+}
+
+#if MALI_STATE_TRACKING
+u32 mali_pp_scheduler_dump_state(char *buf, u32 size)
+{
+ int n = 0;
+ struct mali_group *group;
+ struct mali_group *temp;
+
+ n += _mali_osk_snprintf(buf + n, size - n, "PP:\n");
+ n += _mali_osk_snprintf(buf + n, size - n, "\tQueue is %s\n", _mali_osk_list_empty(&job_queue.normal_pri) ? "empty" : "not empty");
+ n += _mali_osk_snprintf(buf + n, size - n, "\tHigh priority queue is %s\n", _mali_osk_list_empty(&job_queue.high_pri) ? "empty" : "not empty");
+ n += _mali_osk_snprintf(buf + n, size - n, "\n");
+
+ _MALI_OSK_LIST_FOREACHENTRY(group, temp, &group_list_working, struct mali_group, pp_scheduler_list) {
+ n += mali_group_dump_state(group, buf + n, size - n);
+ }
+
+ _MALI_OSK_LIST_FOREACHENTRY(group, temp, &group_list_idle, struct mali_group, pp_scheduler_list) {
+ n += mali_group_dump_state(group, buf + n, size - n);
+ }
+
+ _MALI_OSK_LIST_FOREACHENTRY(group, temp, &group_list_disabled, struct mali_group, pp_scheduler_list) {
+ n += mali_group_dump_state(group, buf + n, size - n);
+ }
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ n += mali_group_dump_state(virtual_group, buf + n, size -n);
+ }
+
+ n += _mali_osk_snprintf(buf + n, size - n, "\n");
+ return n;
+}
+#endif
+
+/* This function is intended for power on reset of all cores.
+ * No locking is done for the list iteration, which can only be safe if the
+ * scheduler is paused and all cores idle. That is always the case on init and
+ * power on. */
+void mali_pp_scheduler_reset_all_groups(void)
+{
+ struct mali_group *group, *temp;
+ struct mali_group *groups[MALI_MAX_NUMBER_OF_GROUPS];
+ s32 i = 0;
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ mali_group_lock(virtual_group);
+ mali_group_reset(virtual_group);
+ mali_group_unlock(virtual_group);
+ }
+
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&group_list_working));
+ MALI_DEBUG_ASSERT(VIRTUAL_GROUP_WORKING != virtual_group_state);
+ mali_pp_scheduler_lock();
+ _MALI_OSK_LIST_FOREACHENTRY(group, temp, &group_list_idle, struct mali_group, pp_scheduler_list) {
+ groups[i++] = group;
+ }
+ mali_pp_scheduler_unlock();
+
+ while (i > 0) {
+ group = groups[--i];
+
+ mali_group_lock(group);
+ mali_group_reset(group);
+ mali_group_unlock(group);
+ }
+}
+
+void mali_pp_scheduler_zap_all_active(struct mali_session_data *session)
+{
+ struct mali_group *group, *temp;
+ struct mali_group *groups[MALI_MAX_NUMBER_OF_GROUPS];
+ s32 i = 0;
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ mali_group_zap_session(virtual_group, session);
+ }
+
+ mali_pp_scheduler_lock();
+ _MALI_OSK_LIST_FOREACHENTRY(group, temp, &group_list_working, struct mali_group, pp_scheduler_list) {
+ groups[i++] = group;
+ }
+ mali_pp_scheduler_unlock();
+
+ while (i > 0) {
+ mali_group_zap_session(groups[--i], session);
+ }
+}
+
+/* A pm reference must be taken with _mali_osk_pm_dev_ref_add_no_power_on
+ * before calling this function to avoid Mali powering down as HW is accessed.
+ */
+static void mali_pp_scheduler_enable_group_internal(struct mali_group *group)
+{
+ MALI_DEBUG_ASSERT_POINTER(group);
+
+ mali_group_lock(group);
+
+ if (MALI_GROUP_STATE_DISABLED != group->state) {
+ mali_group_unlock(group);
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: PP group %p already enabled.\n", group));
+ return;
+ }
+
+ MALI_DEBUG_PRINT(3, ("Mali PP scheduler: Enabling PP group %p.\n", group));
+
+ mali_pp_scheduler_lock();
+
+ MALI_DEBUG_ASSERT(MALI_GROUP_STATE_DISABLED == group->state);
+ ++enabled_cores;
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ mali_bool update_hw;
+
+ /* Add group to virtual group. */
+ _mali_osk_list_delinit(&(group->pp_scheduler_list));
+ group->state = MALI_GROUP_STATE_JOINING_VIRTUAL;
+
+ mali_pp_scheduler_unlock();
+ mali_group_unlock(group);
+
+ mali_group_lock(virtual_group);
+
+ update_hw = mali_pm_is_power_on();
+ /* Get ref of group domain */
+ mali_group_get_pm_domain_ref(group);
+
+ MALI_DEBUG_ASSERT(NULL == group->pm_domain ||
+ MALI_PM_DOMAIN_ON == mali_pm_domain_state_get(group->pm_domain));
+
+ if (update_hw) {
+ mali_group_lock(group);
+ mali_group_power_on_group(group);
+ mali_group_reset(group);
+ mali_group_unlock(group);
+ }
+
+ mali_pp_scheduler_enable_empty_virtual();
+ mali_group_add_group(virtual_group, group, update_hw);
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Done enabling group %p. Added to virtual group.\n", group));
+
+ mali_group_unlock(virtual_group);
+ } else {
+ /* Get ref of group domain */
+ mali_group_get_pm_domain_ref(group);
+
+ MALI_DEBUG_ASSERT(NULL == group->pm_domain ||
+ MALI_PM_DOMAIN_ON == mali_pm_domain_state_get(group->pm_domain));
+
+ /* Put group on idle list. */
+ if (mali_pm_is_power_on()) {
+ mali_group_power_on_group(group);
+ mali_group_reset(group);
+ }
+
+ _mali_osk_list_move(&(group->pp_scheduler_list), &group_list_idle);
+ group->state = MALI_GROUP_STATE_IDLE;
+
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Done enabling group %p. Now on idle list.\n", group));
+ mali_pp_scheduler_unlock();
+ mali_group_unlock(group);
+ }
+}
+
+void mali_pp_scheduler_enable_group(struct mali_group *group)
+{
+ MALI_DEBUG_ASSERT_POINTER(group);
+
+ _mali_osk_pm_dev_ref_add_no_power_on();
+
+ mali_pp_scheduler_enable_group_internal(group);
+
+ _mali_osk_pm_dev_ref_dec_no_power_on();
+
+ /* Pick up any jobs that might have been queued if all PP groups were disabled. */
+ mali_pp_scheduler_schedule();
+}
+
+static void mali_pp_scheduler_disable_group_internal(struct mali_group *group)
+{
+ if (mali_pp_scheduler_has_virtual_group()) {
+ mali_group_lock(virtual_group);
+
+ MALI_DEBUG_ASSERT(VIRTUAL_GROUP_WORKING != virtual_group_state);
+ if (MALI_GROUP_STATE_JOINING_VIRTUAL == group->state) {
+ /* The group was in the process of being added to the virtual group. We
+ * only need to change the state to reverse this. */
+ group->state = MALI_GROUP_STATE_LEAVING_VIRTUAL;
+ } else if (MALI_GROUP_STATE_IN_VIRTUAL == group->state) {
+ /* Remove group from virtual group. The state of the group will be
+ * LEAVING_VIRTUAL and the group will not be on any scheduler list. */
+ mali_group_remove_group(virtual_group, group);
+
+ mali_pp_scheduler_disable_empty_virtual();
+ }
+
+ mali_group_unlock(virtual_group);
+ }
+
+ mali_group_lock(group);
+ mali_pp_scheduler_lock();
+
+ MALI_DEBUG_ASSERT( MALI_GROUP_STATE_IDLE == group->state
+ || MALI_GROUP_STATE_LEAVING_VIRTUAL == group->state
+ || MALI_GROUP_STATE_DISABLED == group->state);
+
+ if (MALI_GROUP_STATE_DISABLED == group->state) {
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: PP group %p already disabled.\n", group));
+ } else {
+ MALI_DEBUG_PRINT(3, ("Mali PP scheduler: Disabling PP group %p.\n", group));
+
+ --enabled_cores;
+ _mali_osk_list_move(&(group->pp_scheduler_list), &group_list_disabled);
+ group->state = MALI_GROUP_STATE_DISABLED;
+
+ mali_group_power_off_group(group, MALI_TRUE);
+ mali_group_put_pm_domain_ref(group);
+ }
+
+ mali_pp_scheduler_unlock();
+ mali_group_unlock(group);
+}
+
+void mali_pp_scheduler_disable_group(struct mali_group *group)
+{
+ MALI_DEBUG_ASSERT_POINTER(group);
+
+ mali_pp_scheduler_suspend();
+
+ _mali_osk_pm_dev_ref_add_no_power_on();
+
+ mali_pp_scheduler_disable_group_internal(group);
+
+ _mali_osk_pm_dev_ref_dec_no_power_on();
+
+ mali_pp_scheduler_resume();
+}
+
+static void mali_pp_scheduler_notify_core_change(u32 num_cores)
+{
+ mali_bool done = MALI_FALSE;
+
+ if (mali_is_mali450()) {
+ return;
+ }
+
+ /*
+ * This function gets a bit complicated because we can't hold the session lock while
+ * allocating notification objects.
+ */
+
+ while (!done) {
+ u32 i;
+ u32 num_sessions_alloc;
+ u32 num_sessions_with_lock;
+ u32 used_notification_objects = 0;
+ _mali_osk_notification_t **notobjs;
+
+ /* Pre allocate the number of notifications objects we need right now (might change after lock has been taken) */
+ num_sessions_alloc = mali_session_get_count();
+ if (0 == num_sessions_alloc) {
+ /* No sessions to report to */
+ return;
+ }
+
+ notobjs = (_mali_osk_notification_t **)_mali_osk_malloc(sizeof(_mali_osk_notification_t *) * num_sessions_alloc);
+ if (NULL == notobjs) {
+ MALI_PRINT_ERROR(("Failed to notify user space session about num PP core change (alloc failure)\n"));
+ /* there is probably no point in trying again, system must be really low on memory and probably unusable now anyway */
+ return;
+ }
+
+ for (i = 0; i < num_sessions_alloc; i++) {
+ notobjs[i] = _mali_osk_notification_create(_MALI_NOTIFICATION_PP_NUM_CORE_CHANGE, sizeof(_mali_uk_pp_num_cores_changed_s));
+ if (NULL != notobjs[i]) {
+ _mali_uk_pp_num_cores_changed_s *data = notobjs[i]->result_buffer;
+ data->number_of_enabled_cores = num_cores;
+ } else {
+ MALI_PRINT_ERROR(("Failed to notify user space session about num PP core change (alloc failure %u)\n", i));
+ }
+ }
+
+ mali_session_lock();
+
+ /* number of sessions will not change while we hold the lock */
+ num_sessions_with_lock = mali_session_get_count();
+
+ if (num_sessions_alloc >= num_sessions_with_lock) {
+ /* We have allocated enough notification objects for all the sessions atm */
+ struct mali_session_data *session, *tmp;
+ MALI_SESSION_FOREACH(session, tmp, link) {
+ MALI_DEBUG_ASSERT(used_notification_objects < num_sessions_alloc);
+ if (NULL != notobjs[used_notification_objects]) {
+ mali_session_send_notification(session, notobjs[used_notification_objects]);
+ notobjs[used_notification_objects] = NULL; /* Don't track this notification object any more */
+ }
+ used_notification_objects++;
+ }
+ done = MALI_TRUE;
+ }
+
+ mali_session_unlock();
+
+ /* Delete any remaining/unused notification objects */
+ for (; used_notification_objects < num_sessions_alloc; used_notification_objects++) {
+ if (NULL != notobjs[used_notification_objects]) {
+ _mali_osk_notification_delete(notobjs[used_notification_objects]);
+ }
+ }
+
+ _mali_osk_free(notobjs);
+ }
+}
+
+static void mali_pp_scheduler_core_scale_up(unsigned int target_core_nr)
+{
+ MALI_DEBUG_PRINT(2, ("Requesting %d cores: enabling %d cores\n", target_core_nr, target_core_nr - enabled_cores));
+
+ _mali_osk_pm_dev_ref_add_no_power_on();
+ _mali_osk_pm_dev_barrier();
+
+ while (target_core_nr > enabled_cores) {
+ /*
+ * If there are any cores which do not belong to any domain,
+ * then these will always be found at the head of the list and
+ * we'll thus enabled these first.
+ */
+
+ mali_pp_scheduler_lock();
+
+ if (!_mali_osk_list_empty(&group_list_disabled)) {
+ struct mali_group *group;
+
+ group = _MALI_OSK_LIST_ENTRY(group_list_disabled.next, struct mali_group, pp_scheduler_list);
+
+ MALI_DEBUG_ASSERT_POINTER(group);
+ MALI_DEBUG_ASSERT(MALI_GROUP_STATE_DISABLED == group->state);
+
+ mali_pp_scheduler_unlock();
+
+ mali_pp_scheduler_enable_group_internal(group);
+ } else {
+ mali_pp_scheduler_unlock();
+ break; /* no more groups on disabled list */
+ }
+ }
+
+ _mali_osk_pm_dev_ref_dec_no_power_on();
+
+ mali_pp_scheduler_schedule();
+}
+
+static void mali_pp_scheduler_core_scale_down(unsigned int target_core_nr)
+{
+ MALI_DEBUG_PRINT(2, ("Requesting %d cores: disabling %d cores\n", target_core_nr, enabled_cores - target_core_nr));
+
+ mali_pp_scheduler_suspend();
+
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&group_list_working));
+
+ _mali_osk_pm_dev_ref_add_no_power_on();
+
+ if (NULL != mali_pmu_get_global_pmu_core()) {
+ int i;
+
+ for (i = MALI_MAX_NUMBER_OF_DOMAINS - 1; i >= 0; i--) {
+ if (target_core_nr < enabled_cores) {
+ struct mali_pm_domain *domain;
+
+ domain = mali_pm_domain_get_from_index(i);
+
+ /* Domain is valid and has pp cores */
+ if ((NULL != domain) && (NULL != domain->group_list)) {
+ struct mali_group *group;
+
+ MALI_PM_DOMAIN_FOR_EACH_GROUP(group, domain) {
+ /* If group is pp core */
+ if (NULL != mali_group_get_pp_core(group)) {
+ mali_pp_scheduler_disable_group_internal(group);
+ if (target_core_nr >= enabled_cores) {
+ break;
+ }
+ }
+ }
+ }
+ } else {
+ break;
+ }
+ }
+ }
+
+ /*
+ * Didn't find enough cores associated with a power domain,
+ * so we need to disable cores which we can't power off with the PMU.
+ * Start with physical groups used by the scheduler,
+ * then remove physical from virtual if even more groups are needed.
+ */
+
+ while (target_core_nr < enabled_cores) {
+ mali_pp_scheduler_lock();
+ if (!_mali_osk_list_empty(&group_list_idle)) {
+ struct mali_group *group;
+
+ group = _MALI_OSK_LIST_ENTRY(group_list_idle.next, struct mali_group, pp_scheduler_list);
+ MALI_DEBUG_ASSERT_POINTER(group);
+
+ mali_pp_scheduler_unlock();
+
+ mali_pp_scheduler_disable_group_internal(group);
+ } else {
+ mali_pp_scheduler_unlock();
+ break; /* No more physical groups */
+ }
+ }
+
+ if (mali_pp_scheduler_has_virtual_group()) {
+ while (target_core_nr < enabled_cores) {
+ mali_group_lock(virtual_group);
+ if (!_mali_osk_list_empty(&virtual_group->group_list)) {
+ struct mali_group *group;
+
+ group = _MALI_OSK_LIST_ENTRY(virtual_group->group_list.next, struct mali_group, group_list);
+ MALI_DEBUG_ASSERT_POINTER(group);
+
+ mali_group_unlock(virtual_group);
+
+ mali_pp_scheduler_disable_group_internal(group);
+ } else {
+ mali_group_unlock(virtual_group);
+ break; /* No more physical groups in virtual group */
+ }
+ }
+ }
+
+ _mali_osk_pm_dev_ref_dec_no_power_on();
+
+ mali_pp_scheduler_resume();
+}
+
+int mali_pp_scheduler_set_perf_level(unsigned int target_core_nr, mali_bool override)
+{
+ if (target_core_nr == enabled_cores) return 0;
+ if (MALI_FALSE == core_scaling_enabled && MALI_FALSE == override) return -EPERM;
+ if (target_core_nr > num_cores) return -EINVAL;
+ if (0 == target_core_nr) return -EINVAL;
+
+ if (target_core_nr > enabled_cores) {
+ mali_pp_scheduler_core_scale_up(target_core_nr);
+ } else if (target_core_nr < enabled_cores) {
+ mali_pp_scheduler_core_scale_down(target_core_nr);
+ }
+
+ if (target_core_nr != enabled_cores) {
+ MALI_DEBUG_PRINT(2, ("Core scaling failed, target number: %d, actual number: %d\n", target_core_nr, enabled_cores));
+ }
+
+ mali_pp_scheduler_notify_core_change(enabled_cores);
+
+ return 0;
+}
+
+void mali_pp_scheduler_core_scaling_enable(void)
+{
+ /* PS: Core scaling is by default enabled */
+ core_scaling_enabled = MALI_TRUE;
+}
+
+void mali_pp_scheduler_core_scaling_disable(void)
+{
+ core_scaling_enabled = MALI_FALSE;
+}
+
+mali_bool mali_pp_scheduler_core_scaling_is_enabled(void)
+{
+ return core_scaling_enabled;
+}
+
+static void mali_pp_scheduler_job_queued(void)
+{
+ if (mali_utilization_enabled()) {
+ /*
+ * We cheat a little bit by counting the PP as busy from the time a PP job is queued.
+ * This will be fine because we only loose the tiny idle gap between jobs, but
+ * we will instead get less utilization work to do (less locks taken)
+ */
+ mali_utilization_pp_start();
+ }
+}
+
+static void mali_pp_scheduler_job_completed(void)
+{
+ /* Release the PM reference we got in the mali_pp_scheduler_job_queued() function */
+ _mali_osk_pm_dev_ref_dec();
+
+ if (mali_utilization_enabled()) {
+ mali_utilization_pp_end();
+ }
+}
+
+static void mali_pp_scheduler_abort_job_and_unlock_scheduler(struct mali_pp_job *job)
+{
+ MALI_DEBUG_ASSERT_POINTER(job);
+ MALI_DEBUG_ASSERT_LOCK_HELD(pp_scheduler_lock);
+
+ /* This job should not be on any lists. */
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->list));
+ MALI_DEBUG_ASSERT(_mali_osk_list_empty(&job->session_list));
+
+ _mali_osk_list_delinit(&job->session_fb_lookup_list);
+
+ mali_pp_scheduler_unlock();
+
+ /* Release tracker. */
+ mali_timeline_tracker_release(&job->tracker);
+}
+
+static mali_scheduler_mask mali_pp_scheduler_queue_job(struct mali_pp_job *job)
+{
+ _mali_osk_list_t *queue = NULL;
+ mali_scheduler_mask schedule_mask = MALI_SCHEDULER_MASK_EMPTY;
+ struct mali_pp_job *iter, *tmp;
+
+ MALI_DEBUG_ASSERT_POINTER(job);
+ MALI_DEBUG_ASSERT_POINTER(job->session);
+
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE)
+ if (mali_pp_job_needs_dma_buf_mapping(job)) {
+ mali_dma_buf_map_job(job);
+ }
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE) */
+
+ mali_pp_scheduler_lock();
+
+ if (unlikely(job->session->is_aborting)) {
+ /* Before checking if the session is aborting, the scheduler must be locked. */
+ MALI_DEBUG_ASSERT_LOCK_HELD(pp_scheduler_lock);
+
+ MALI_DEBUG_PRINT(2, ("Mali PP scheduler: Job %u (0x%08X) queued while session is aborting.\n", mali_pp_job_get_id(job), job));
+
+ mali_pp_scheduler_abort_job_and_unlock_scheduler(job);
+
+ /* Delete job. */
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE)
+ mali_pp_scheduler_deferred_job_delete(job);
+#else
+ mali_pp_job_delete(job);
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_DELETE) */
+
+ /* Since we are aborting we ignore the scheduler mask. */
+ return MALI_SCHEDULER_MASK_EMPTY;
+ }
+
+ mali_pp_scheduler_job_queued();
+
+#if defined(CONFIG_GPU_TRACEPOINTS) && defined(CONFIG_TRACEPOINTS)
+ trace_gpu_job_enqueue(mali_pp_job_get_tid(job), mali_pp_job_get_id(job), "PP");
+#endif
+
+ _mali_osk_profiling_add_event(MALI_PROFILING_EVENT_TYPE_SINGLE | MALI_PROFILING_EVENT_CHANNEL_SOFTWARE | MALI_PROFILING_EVENT_REASON_SINGLE_SW_PP_ENQUEUE, job->pid, job->tid, job->uargs.frame_builder_id, job->uargs.flush_id, 0);
+
+ job->cache_order = mali_scheduler_get_new_cache_order();
+
+ /* Determine which queue the job should be added to. */
+ if (mali_pp_job_is_virtual(job)) {
+ if (job->session->use_high_priority_job_queue) {
+ queue = &virtual_job_queue.high_pri;
+ } else {
+ queue = &virtual_job_queue.normal_pri;
+ }
+
+ virtual_job_queue.depth += 1;
+
+ /* Set schedule bitmask if the virtual group is idle. */
+ if (VIRTUAL_GROUP_IDLE == virtual_group_state) {
+ schedule_mask |= MALI_SCHEDULER_MASK_PP;
+ }
+ } else {
+ if (job->session->use_high_priority_job_queue) {
+ queue = &job_queue.high_pri;
+ } else {
+ queue = &job_queue.normal_pri;
+ }
+
+ job_queue.depth += mali_pp_job_get_sub_job_count(job);
+
+ /* Set schedule bitmask if there are physical PP cores available, or if there is an
+ * idle virtual group. */
+ if (!_mali_osk_list_empty(&group_list_idle)
+ || (mali_pp_scheduler_has_virtual_group()
+ && (VIRTUAL_GROUP_IDLE == virtual_group_state))) {
+ schedule_mask |= MALI_SCHEDULER_MASK_PP;
+ }
+ }
+
+ /* Find position in queue where job should be added. */
+ _MALI_OSK_LIST_FOREACHENTRY_REVERSE(iter, tmp, queue, struct mali_pp_job, list) {
+ if (mali_pp_job_should_start_after(job, iter)) {
+ break;
+ }
+ }
+
+ /* Add job to queue. */
+ _mali_osk_list_add(&job->list, &iter->list);
+
+ /* Add job to session list. */
+ _mali_osk_list_addtail(&job->session_list, &(job->session->pp_job_list));
+
+ MALI_DEBUG_PRINT(3, ("Mali PP scheduler: %s job %u (0x%08X) with %u parts queued.\n",
+ mali_pp_job_is_virtual(job) ? "Virtual" : "Physical",
+ mali_pp_job_get_id(job), job, mali_pp_job_get_sub_job_count(job)));
+
+ mali_pp_scheduler_unlock();
+
+ return schedule_mask;
+}
+
+mali_scheduler_mask mali_pp_scheduler_activate_job(struct mali_pp_job *job)
+{
+ mali_scheduler_mask schedule_mask = MALI_SCHEDULER_MASK_EMPTY;
+
+ MALI_DEBUG_ASSERT_POINTER(job);
+ MALI_DEBUG_ASSERT_POINTER(job->session);
+
+ MALI_DEBUG_PRINT(4, ("Mali PP scheduler: Timeline activation for job %u (0x%08X).\n", mali_pp_job_get_id(job), job));
+
+ if (MALI_TIMELINE_ACTIVATION_ERROR_FATAL_BIT & job->tracker.activation_error) {
+ MALI_DEBUG_PRINT(2, ("Mali PP scheduler: Job %u (0x%08X) activated with error, aborting.\n", mali_pp_job_get_id(job), job));
+
+ mali_pp_scheduler_lock();
+ mali_pp_scheduler_abort_job_and_unlock_scheduler(job);
+
+ mali_pp_job_mark_sub_job_completed(job, MALI_FALSE); /* Flagging the job as failed. */
+ mali_pp_scheduler_finalize_job(job);
+
+ return MALI_SCHEDULER_MASK_EMPTY;
+ }
+
+ /* PP job is ready to run, queue it. */
+
+#if defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE)
+ if (mali_pp_job_needs_dma_buf_mapping(job)) {
+ mali_pp_scheduler_deferred_job_queue(job);
+
+ return MALI_SCHEDULER_MASK_EMPTY;
+ }
+#endif /* defined(MALI_PP_SCHEDULER_USE_DEFERRED_JOB_QUEUE) */
+
+ schedule_mask = mali_pp_scheduler_queue_job(job);
+
+ return schedule_mask;
+}
projects / kernel / linux-3.0.git / commitdiff