/*
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*
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* (C) COPYRIGHT 2010-2017 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU licence.
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*
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* A copy of the licence is included with the program, and can also be obtained
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* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef _KBASE_H_
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#define _KBASE_H_
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#include <mali_malisw.h>
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#include <mali_kbase_debug.h>
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#include <asm/page.h>
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#include <linux/atomic.h>
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#include <linux/highmem.h>
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#include <linux/hrtimer.h>
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#include <linux/ktime.h>
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#include <linux/list.h>
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#include <linux/mm_types.h>
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#include <linux/mutex.h>
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#include <linux/rwsem.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include <linux/vmalloc.h>
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#include <linux/wait.h>
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#include <linux/workqueue.h>
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#include <linux/sched/task_stack.h>
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#include "mali_base_kernel.h"
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#include <mali_kbase_uku.h>
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#include <mali_kbase_linux.h>
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/*
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* Include mali_kbase_defs.h first as this provides types needed by other local
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* header files.
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*/
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#include "mali_kbase_defs.h"
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#include "mali_kbase_context.h"
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#include "mali_kbase_strings.h"
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#include "mali_kbase_mem_lowlevel.h"
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#include "mali_kbase_trace_timeline.h"
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#include "mali_kbase_js.h"
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#include "mali_kbase_mem.h"
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#include "mali_kbase_utility.h"
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#include "mali_kbase_gpu_memory_debugfs.h"
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#include "mali_kbase_mem_profile_debugfs.h"
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#include "mali_kbase_debug_job_fault.h"
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#include "mali_kbase_jd_debugfs.h"
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#include "mali_kbase_gpuprops.h"
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#include "mali_kbase_jm.h"
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#include "mali_kbase_vinstr.h"
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#include "ipa/mali_kbase_ipa.h"
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#ifdef CONFIG_GPU_TRACEPOINTS
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#include <trace/events/gpu.h>
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#endif
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/**
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* @page page_base_kernel_main Kernel-side Base (KBase) APIs
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*/
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/**
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* @defgroup base_kbase_api Kernel-side Base (KBase) APIs
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*/
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struct kbase_device *kbase_device_alloc(void);
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/*
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* note: configuration attributes member of kbdev needs to have
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* been setup before calling kbase_device_init
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*/
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/*
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* API to acquire device list semaphore and return pointer
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* to the device list head
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*/
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const struct list_head *kbase_dev_list_get(void);
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/* API to release the device list semaphore */
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void kbase_dev_list_put(const struct list_head *dev_list);
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int kbase_device_init(struct kbase_device * const kbdev);
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void kbase_device_term(struct kbase_device *kbdev);
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void kbase_device_free(struct kbase_device *kbdev);
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int kbase_device_has_feature(struct kbase_device *kbdev, u32 feature);
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/* Needed for gator integration and for reporting vsync information */
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struct kbase_device *kbase_find_device(int minor);
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void kbase_release_device(struct kbase_device *kbdev);
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void kbase_set_profiling_control(struct kbase_device *kbdev, u32 control, u32 value);
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struct kbase_context *
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kbase_create_context(struct kbase_device *kbdev, bool is_compat);
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void kbase_destroy_context(struct kbase_context *kctx);
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int kbase_jd_init(struct kbase_context *kctx);
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void kbase_jd_exit(struct kbase_context *kctx);
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/**
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* kbase_jd_submit - Submit atoms to the job dispatcher
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*
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* @kctx: The kbase context to submit to
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* @user_addr: The address in user space of the struct base_jd_atom_v2 array
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* @nr_atoms: The number of atoms in the array
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* @stride: sizeof(struct base_jd_atom_v2)
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* @uk6_atom: true if the atoms are legacy atoms (struct base_jd_atom_v2_uk6)
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*
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* Return: 0 on success or error code
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*/
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int kbase_jd_submit(struct kbase_context *kctx,
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void __user *user_addr, u32 nr_atoms, u32 stride,
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bool uk6_atom);
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/**
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* kbase_jd_done_worker - Handle a job completion
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* @data: a &struct work_struct
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*
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* This function requeues the job from the runpool (if it was soft-stopped or
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* removed from NEXT registers).
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*
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* Removes it from the system if it finished/failed/was cancelled.
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*
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* Resolves dependencies to add dependent jobs to the context, potentially
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* starting them if necessary (which may add more references to the context)
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*
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* Releases the reference to the context from the no-longer-running job.
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*
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* Handles retrying submission outside of IRQ context if it failed from within
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* IRQ context.
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*/
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void kbase_jd_done_worker(struct work_struct *data);
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void kbase_jd_done(struct kbase_jd_atom *katom, int slot_nr, ktime_t *end_timestamp,
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kbasep_js_atom_done_code done_code);
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void kbase_jd_cancel(struct kbase_device *kbdev, struct kbase_jd_atom *katom);
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void kbase_jd_zap_context(struct kbase_context *kctx);
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bool jd_done_nolock(struct kbase_jd_atom *katom,
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struct list_head *completed_jobs_ctx);
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void kbase_jd_free_external_resources(struct kbase_jd_atom *katom);
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bool jd_submit_atom(struct kbase_context *kctx,
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const struct base_jd_atom_v2 *user_atom,
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struct kbase_jd_atom *katom);
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void kbase_jd_dep_clear_locked(struct kbase_jd_atom *katom);
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void kbase_job_done(struct kbase_device *kbdev, u32 done);
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/**
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* kbase_job_slot_ctx_priority_check_locked(): - Check for lower priority atoms
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* and soft stop them
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* @kctx: Pointer to context to check.
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* @katom: Pointer to priority atom.
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*
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* Atoms from @kctx on the same job slot as @katom, which have lower priority
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* than @katom will be soft stopped and put back in the queue, so that atoms
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* with higher priority can run.
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*
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* The hwaccess_lock must be held when calling this function.
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*/
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void kbase_job_slot_ctx_priority_check_locked(struct kbase_context *kctx,
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struct kbase_jd_atom *katom);
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void kbase_job_slot_softstop(struct kbase_device *kbdev, int js,
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struct kbase_jd_atom *target_katom);
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void kbase_job_slot_softstop_swflags(struct kbase_device *kbdev, int js,
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struct kbase_jd_atom *target_katom, u32 sw_flags);
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void kbase_job_slot_hardstop(struct kbase_context *kctx, int js,
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struct kbase_jd_atom *target_katom);
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void kbase_job_check_enter_disjoint(struct kbase_device *kbdev, u32 action,
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base_jd_core_req core_reqs, struct kbase_jd_atom *target_katom);
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void kbase_job_check_leave_disjoint(struct kbase_device *kbdev,
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struct kbase_jd_atom *target_katom);
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void kbase_event_post(struct kbase_context *ctx, struct kbase_jd_atom *event);
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int kbase_event_dequeue(struct kbase_context *ctx, struct base_jd_event_v2 *uevent);
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int kbase_event_pending(struct kbase_context *ctx);
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int kbase_event_init(struct kbase_context *kctx);
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void kbase_event_close(struct kbase_context *kctx);
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void kbase_event_cleanup(struct kbase_context *kctx);
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void kbase_event_wakeup(struct kbase_context *kctx);
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int kbase_process_soft_job(struct kbase_jd_atom *katom);
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int kbase_prepare_soft_job(struct kbase_jd_atom *katom);
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void kbase_finish_soft_job(struct kbase_jd_atom *katom);
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void kbase_cancel_soft_job(struct kbase_jd_atom *katom);
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void kbase_resume_suspended_soft_jobs(struct kbase_device *kbdev);
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void kbasep_remove_waiting_soft_job(struct kbase_jd_atom *katom);
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#if defined(CONFIG_SYNC) || defined(CONFIG_SYNC_FILE)
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void kbase_soft_event_wait_callback(struct kbase_jd_atom *katom);
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#endif
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int kbase_soft_event_update(struct kbase_context *kctx,
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u64 event,
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unsigned char new_status);
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bool kbase_replay_process(struct kbase_jd_atom *katom);
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void kbasep_soft_job_timeout_worker(struct timer_list *t);
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void kbasep_complete_triggered_soft_events(struct kbase_context *kctx, u64 evt);
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/* api used internally for register access. Contains validation and tracing */
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void kbase_device_trace_register_access(struct kbase_context *kctx, enum kbase_reg_access_type type, u16 reg_offset, u32 reg_value);
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int kbase_device_trace_buffer_install(
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struct kbase_context *kctx, u32 *tb, size_t size);
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void kbase_device_trace_buffer_uninstall(struct kbase_context *kctx);
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/* api to be ported per OS, only need to do the raw register access */
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void kbase_os_reg_write(struct kbase_device *kbdev, u16 offset, u32 value);
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u32 kbase_os_reg_read(struct kbase_device *kbdev, u16 offset);
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void kbasep_as_do_poke(struct work_struct *work);
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/** Returns the name associated with a Mali exception code
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*
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* This function is called from the interrupt handler when a GPU fault occurs.
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* It reports the details of the fault using KBASE_DEBUG_PRINT_WARN.
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*
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* @param[in] kbdev The kbase device that the GPU fault occurred from.
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* @param[in] exception_code exception code
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* @return name associated with the exception code
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*/
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const char *kbase_exception_name(struct kbase_device *kbdev,
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u32 exception_code);
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/**
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* Check whether a system suspend is in progress, or has already been suspended
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*
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* The caller should ensure that either kbdev->pm.active_count_lock is held, or
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* a dmb was executed recently (to ensure the value is most
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* up-to-date). However, without a lock the value could change afterwards.
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*
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* @return false if a suspend is not in progress
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* @return !=false otherwise
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*/
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static inline bool kbase_pm_is_suspending(struct kbase_device *kbdev)
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{
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return kbdev->pm.suspending;
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}
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/**
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* Return the atom's ID, as was originally supplied by userspace in
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* base_jd_atom_v2::atom_number
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*/
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static inline int kbase_jd_atom_id(struct kbase_context *kctx, struct kbase_jd_atom *katom)
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{
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int result;
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KBASE_DEBUG_ASSERT(kctx);
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KBASE_DEBUG_ASSERT(katom);
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KBASE_DEBUG_ASSERT(katom->kctx == kctx);
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result = katom - &kctx->jctx.atoms[0];
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KBASE_DEBUG_ASSERT(result >= 0 && result <= BASE_JD_ATOM_COUNT);
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return result;
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}
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/**
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* kbase_jd_atom_from_id - Return the atom structure for the given atom ID
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* @kctx: Context pointer
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* @id: ID of atom to retrieve
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*
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* Return: Pointer to struct kbase_jd_atom associated with the supplied ID
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*/
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static inline struct kbase_jd_atom *kbase_jd_atom_from_id(
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struct kbase_context *kctx, int id)
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{
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return &kctx->jctx.atoms[id];
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}
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/**
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* Initialize the disjoint state
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*
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* The disjoint event count and state are both set to zero.
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*
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* Disjoint functions usage:
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*
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* The disjoint event count should be incremented whenever a disjoint event occurs.
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*
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* There are several cases which are regarded as disjoint behavior. Rather than just increment
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* the counter during disjoint events we also increment the counter when jobs may be affected
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* by what the GPU is currently doing. To facilitate this we have the concept of disjoint state.
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*
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* Disjoint state is entered during GPU reset and for the entire time that an atom is replaying
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* (as part of the replay workaround). Increasing the disjoint state also increases the count of
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* disjoint events.
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*
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* The disjoint state is then used to increase the count of disjoint events during job submission
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* and job completion. Any atom submitted or completed while the disjoint state is greater than
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* zero is regarded as a disjoint event.
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*
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* The disjoint event counter is also incremented immediately whenever a job is soft stopped
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* and during context creation.
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*
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* @param kbdev The kbase device
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*/
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void kbase_disjoint_init(struct kbase_device *kbdev);
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/**
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* Increase the count of disjoint events
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* called when a disjoint event has happened
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*
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* @param kbdev The kbase device
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*/
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void kbase_disjoint_event(struct kbase_device *kbdev);
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/**
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* Increase the count of disjoint events only if the GPU is in a disjoint state
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*
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* This should be called when something happens which could be disjoint if the GPU
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* is in a disjoint state. The state refcount keeps track of this.
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*
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* @param kbdev The kbase device
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*/
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void kbase_disjoint_event_potential(struct kbase_device *kbdev);
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/**
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* Returns the count of disjoint events
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*
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* @param kbdev The kbase device
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* @return the count of disjoint events
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*/
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u32 kbase_disjoint_event_get(struct kbase_device *kbdev);
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/**
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* Increment the refcount state indicating that the GPU is in a disjoint state.
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*
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* Also Increment the disjoint event count (calls @ref kbase_disjoint_event)
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* eventually after the disjoint state has completed @ref kbase_disjoint_state_down
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* should be called
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*
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* @param kbdev The kbase device
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*/
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void kbase_disjoint_state_up(struct kbase_device *kbdev);
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/**
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* Decrement the refcount state
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*
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* Also Increment the disjoint event count (calls @ref kbase_disjoint_event)
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*
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* Called after @ref kbase_disjoint_state_up once the disjoint state is over
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*
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* @param kbdev The kbase device
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*/
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void kbase_disjoint_state_down(struct kbase_device *kbdev);
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/**
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* If a job is soft stopped and the number of contexts is >= this value
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* it is reported as a disjoint event
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*/
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#define KBASE_DISJOINT_STATE_INTERLEAVED_CONTEXT_COUNT_THRESHOLD 2
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#if !defined(UINT64_MAX)
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#define UINT64_MAX ((uint64_t)0xFFFFFFFFFFFFFFFFULL)
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#endif
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#if KBASE_TRACE_ENABLE
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void kbasep_trace_debugfs_init(struct kbase_device *kbdev);
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#ifndef CONFIG_MALI_SYSTEM_TRACE
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/** Add trace values about a job-slot
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*
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* @note Any functions called through this macro will still be evaluated in
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* Release builds (CONFIG_MALI_DEBUG not defined). Therefore, when KBASE_TRACE_ENABLE == 0 any
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* functions called to get the parameters supplied to this macro must:
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* - be static or static inline
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* - must just return 0 and have no other statements present in the body.
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*/
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#define KBASE_TRACE_ADD_SLOT(kbdev, code, ctx, katom, gpu_addr, jobslot) \
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kbasep_trace_add(kbdev, KBASE_TRACE_CODE(code), ctx, katom, gpu_addr, \
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KBASE_TRACE_FLAG_JOBSLOT, 0, jobslot, 0)
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/** Add trace values about a job-slot, with info
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*
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* @note Any functions called through this macro will still be evaluated in
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* Release builds (CONFIG_MALI_DEBUG not defined). Therefore, when KBASE_TRACE_ENABLE == 0 any
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* functions called to get the parameters supplied to this macro must:
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* - be static or static inline
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* - must just return 0 and have no other statements present in the body.
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*/
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#define KBASE_TRACE_ADD_SLOT_INFO(kbdev, code, ctx, katom, gpu_addr, jobslot, info_val) \
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kbasep_trace_add(kbdev, KBASE_TRACE_CODE(code), ctx, katom, gpu_addr, \
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KBASE_TRACE_FLAG_JOBSLOT, 0, jobslot, info_val)
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/** Add trace values about a ctx refcount
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*
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* @note Any functions called through this macro will still be evaluated in
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* Release builds (CONFIG_MALI_DEBUG not defined). Therefore, when KBASE_TRACE_ENABLE == 0 any
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* functions called to get the parameters supplied to this macro must:
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* - be static or static inline
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* - must just return 0 and have no other statements present in the body.
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*/
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#define KBASE_TRACE_ADD_REFCOUNT(kbdev, code, ctx, katom, gpu_addr, refcount) \
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kbasep_trace_add(kbdev, KBASE_TRACE_CODE(code), ctx, katom, gpu_addr, \
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KBASE_TRACE_FLAG_REFCOUNT, refcount, 0, 0)
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/** Add trace values about a ctx refcount, and info
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*
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* @note Any functions called through this macro will still be evaluated in
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* Release builds (CONFIG_MALI_DEBUG not defined). Therefore, when KBASE_TRACE_ENABLE == 0 any
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* functions called to get the parameters supplied to this macro must:
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* - be static or static inline
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* - must just return 0 and have no other statements present in the body.
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*/
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#define KBASE_TRACE_ADD_REFCOUNT_INFO(kbdev, code, ctx, katom, gpu_addr, refcount, info_val) \
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kbasep_trace_add(kbdev, KBASE_TRACE_CODE(code), ctx, katom, gpu_addr, \
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KBASE_TRACE_FLAG_REFCOUNT, refcount, 0, info_val)
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/** Add trace values (no slot or refcount)
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*
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* @note Any functions called through this macro will still be evaluated in
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* Release builds (CONFIG_MALI_DEBUG not defined). Therefore, when KBASE_TRACE_ENABLE == 0 any
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* functions called to get the parameters supplied to this macro must:
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* - be static or static inline
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* - must just return 0 and have no other statements present in the body.
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*/
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#define KBASE_TRACE_ADD(kbdev, code, ctx, katom, gpu_addr, info_val) \
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kbasep_trace_add(kbdev, KBASE_TRACE_CODE(code), ctx, katom, gpu_addr, \
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0, 0, 0, info_val)
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/** Clear the trace */
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#define KBASE_TRACE_CLEAR(kbdev) \
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kbasep_trace_clear(kbdev)
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/** Dump the slot trace */
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#define KBASE_TRACE_DUMP(kbdev) \
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kbasep_trace_dump(kbdev)
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/** PRIVATE - do not use directly. Use KBASE_TRACE_ADD() instead */
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void kbasep_trace_add(struct kbase_device *kbdev, enum kbase_trace_code code, void *ctx, struct kbase_jd_atom *katom, u64 gpu_addr, u8 flags, int refcount, int jobslot, unsigned long info_val);
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/** PRIVATE - do not use directly. Use KBASE_TRACE_CLEAR() instead */
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void kbasep_trace_clear(struct kbase_device *kbdev);
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#else /* #ifndef CONFIG_MALI_SYSTEM_TRACE */
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/* Dispatch kbase trace events as system trace events */
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#include <mali_linux_kbase_trace.h>
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#define KBASE_TRACE_ADD_SLOT(kbdev, code, ctx, katom, gpu_addr, jobslot)\
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trace_mali_##code(jobslot, 0)
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#define KBASE_TRACE_ADD_SLOT_INFO(kbdev, code, ctx, katom, gpu_addr, jobslot, info_val)\
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trace_mali_##code(jobslot, info_val)
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#define KBASE_TRACE_ADD_REFCOUNT(kbdev, code, ctx, katom, gpu_addr, refcount)\
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trace_mali_##code(refcount, 0)
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#define KBASE_TRACE_ADD_REFCOUNT_INFO(kbdev, code, ctx, katom, gpu_addr, refcount, info_val)\
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trace_mali_##code(refcount, info_val)
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#define KBASE_TRACE_ADD(kbdev, code, ctx, katom, gpu_addr, info_val)\
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trace_mali_##code(gpu_addr, info_val)
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#define KBASE_TRACE_CLEAR(kbdev)\
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do {\
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CSTD_UNUSED(kbdev);\
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CSTD_NOP(0);\
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} while (0)
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#define KBASE_TRACE_DUMP(kbdev)\
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do {\
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CSTD_UNUSED(kbdev);\
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CSTD_NOP(0);\
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} while (0)
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#endif /* #ifndef CONFIG_MALI_SYSTEM_TRACE */
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#else
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#define KBASE_TRACE_ADD_SLOT(kbdev, code, ctx, katom, gpu_addr, jobslot)\
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do {\
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CSTD_UNUSED(kbdev);\
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CSTD_NOP(code);\
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CSTD_UNUSED(ctx);\
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CSTD_UNUSED(katom);\
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CSTD_UNUSED(gpu_addr);\
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CSTD_UNUSED(jobslot);\
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} while (0)
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#define KBASE_TRACE_ADD_SLOT_INFO(kbdev, code, ctx, katom, gpu_addr, jobslot, info_val)\
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do {\
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CSTD_UNUSED(kbdev);\
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CSTD_NOP(code);\
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CSTD_UNUSED(ctx);\
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CSTD_UNUSED(katom);\
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CSTD_UNUSED(gpu_addr);\
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CSTD_UNUSED(jobslot);\
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CSTD_UNUSED(info_val);\
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CSTD_NOP(0);\
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} while (0)
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#define KBASE_TRACE_ADD_REFCOUNT(kbdev, code, ctx, katom, gpu_addr, refcount)\
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do {\
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CSTD_UNUSED(kbdev);\
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CSTD_NOP(code);\
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CSTD_UNUSED(ctx);\
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CSTD_UNUSED(katom);\
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CSTD_UNUSED(gpu_addr);\
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CSTD_UNUSED(refcount);\
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CSTD_NOP(0);\
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} while (0)
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#define KBASE_TRACE_ADD_REFCOUNT_INFO(kbdev, code, ctx, katom, gpu_addr, refcount, info_val)\
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do {\
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CSTD_UNUSED(kbdev);\
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CSTD_NOP(code);\
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CSTD_UNUSED(ctx);\
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CSTD_UNUSED(katom);\
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CSTD_UNUSED(gpu_addr);\
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CSTD_UNUSED(info_val);\
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CSTD_NOP(0);\
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} while (0)
|
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#define KBASE_TRACE_ADD(kbdev, code, subcode, ctx, katom, val)\
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do {\
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CSTD_UNUSED(kbdev);\
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CSTD_NOP(code);\
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CSTD_UNUSED(subcode);\
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CSTD_UNUSED(ctx);\
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CSTD_UNUSED(katom);\
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CSTD_UNUSED(val);\
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CSTD_NOP(0);\
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} while (0)
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#define KBASE_TRACE_CLEAR(kbdev)\
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do {\
|
CSTD_UNUSED(kbdev);\
|
CSTD_NOP(0);\
|
} while (0)
|
#define KBASE_TRACE_DUMP(kbdev)\
|
do {\
|
CSTD_UNUSED(kbdev);\
|
CSTD_NOP(0);\
|
} while (0)
|
#endif /* KBASE_TRACE_ENABLE */
|
/** PRIVATE - do not use directly. Use KBASE_TRACE_DUMP() instead */
|
void kbasep_trace_dump(struct kbase_device *kbdev);
|
|
#ifdef CONFIG_MALI_DEBUG
|
/**
|
* kbase_set_driver_inactive - Force driver to go inactive
|
* @kbdev: Device pointer
|
* @inactive: true if driver should go inactive, false otherwise
|
*
|
* Forcing the driver inactive will cause all future IOCTLs to wait until the
|
* driver is made active again. This is intended solely for the use of tests
|
* which require that no jobs are running while the test executes.
|
*/
|
void kbase_set_driver_inactive(struct kbase_device *kbdev, bool inactive);
|
#endif /* CONFIG_MALI_DEBUG */
|
|
|
#if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_MALI_NO_MALI)
|
|
/* kbase_io_history_init - initialize data struct for register access history
|
*
|
* @kbdev The register history to initialize
|
* @n The number of register accesses that the buffer could hold
|
*
|
* @return 0 if successfully initialized, failure otherwise
|
*/
|
int kbase_io_history_init(struct kbase_io_history *h, u16 n);
|
|
/* kbase_io_history_term - uninit all resources for the register access history
|
*
|
* @h The register history to terminate
|
*/
|
void kbase_io_history_term(struct kbase_io_history *h);
|
|
/* kbase_io_history_dump - print the register history to the kernel ring buffer
|
*
|
* @kbdev Pointer to kbase_device containing the register history to dump
|
*/
|
void kbase_io_history_dump(struct kbase_device *kbdev);
|
|
/**
|
* kbase_io_history_resize - resize the register access history buffer.
|
*
|
* @h: Pointer to a valid register history to resize
|
* @new_size: Number of accesses the buffer could hold
|
*
|
* A successful resize will clear all recent register accesses.
|
* If resizing fails for any reason (e.g., could not allocate memory, invalid
|
* buffer size) then the original buffer will be kept intact.
|
*
|
* @return 0 if the buffer was resized, failure otherwise
|
*/
|
int kbase_io_history_resize(struct kbase_io_history *h, u16 new_size);
|
|
#else /* CONFIG_DEBUG_FS */
|
|
#define kbase_io_history_init(...) ((int)0)
|
|
#define kbase_io_history_term CSTD_NOP
|
|
#define kbase_io_history_dump CSTD_NOP
|
|
#define kbase_io_history_resize CSTD_NOP
|
|
#endif /* CONFIG_DEBUG_FS */
|
|
|
#endif
|
