/*
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*
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* (C) COPYRIGHT 2011-2017 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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/**
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* @file mali_kbase_defs.h
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*
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* Defintions (types, defines, etcs) common to Kbase. They are placed here to
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* allow the hierarchy of header files to work.
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*/
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#ifndef _KBASE_DEFS_H_
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#define _KBASE_DEFS_H_
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#include <mali_kbase_config.h>
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#include <mali_base_hwconfig_features.h>
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#include <mali_base_hwconfig_issues.h>
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#include <mali_kbase_mem_lowlevel.h>
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#include <mali_kbase_mmu_hw.h>
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#include <mali_kbase_mmu_mode.h>
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#include <mali_kbase_instr_defs.h>
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#include <mali_kbase_pm.h>
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#include <protected_mode_switcher.h>
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#include <linux/atomic.h>
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#include <linux/mempool.h>
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#include <linux/slab.h>
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#include <linux/file.h>
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#ifdef CONFIG_MALI_FPGA_BUS_LOGGER
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#include <linux/bus_logger.h>
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#endif
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#ifdef CONFIG_KDS
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#include <linux/kds.h>
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#endif /* CONFIG_KDS */
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#if defined(CONFIG_SYNC)
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#include <sync.h>
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#else
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#include "mali_kbase_fence_defs.h"
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#endif
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#ifdef CONFIG_DEBUG_FS
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#include <linux/debugfs.h>
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#endif /* CONFIG_DEBUG_FS */
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#ifdef CONFIG_MALI_DEVFREQ
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#include <linux/devfreq.h>
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#endif /* CONFIG_MALI_DEVFREQ */
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#include <linux/clk.h>
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#include <linux/regulator/consumer.h>
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#include <soc/rockchip/rockchip_opp_select.h>
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#if defined(CONFIG_PM)
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#define KBASE_PM_RUNTIME 1
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#endif
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/** Enable SW tracing when set */
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#ifdef CONFIG_MALI_MIDGARD_ENABLE_TRACE
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#define KBASE_TRACE_ENABLE 1
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#endif
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#ifndef KBASE_TRACE_ENABLE
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#ifdef CONFIG_MALI_DEBUG
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#define KBASE_TRACE_ENABLE 1
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#else
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#define KBASE_TRACE_ENABLE 0
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#endif /* CONFIG_MALI_DEBUG */
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#endif /* KBASE_TRACE_ENABLE */
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/** Dump Job slot trace on error (only active if KBASE_TRACE_ENABLE != 0) */
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#define KBASE_TRACE_DUMP_ON_JOB_SLOT_ERROR 1
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/**
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* Number of milliseconds before resetting the GPU when a job cannot be "zapped" from the hardware.
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* Note that the time is actually ZAP_TIMEOUT+SOFT_STOP_RESET_TIMEOUT between the context zap starting and the GPU
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* actually being reset to give other contexts time for their jobs to be soft-stopped and removed from the hardware
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* before resetting.
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*/
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#define ZAP_TIMEOUT 1000
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/** Number of milliseconds before we time out on a GPU soft/hard reset */
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#define RESET_TIMEOUT 500
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/**
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* Prevent soft-stops from occuring in scheduling situations
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*
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* This is not due to HW issues, but when scheduling is desired to be more predictable.
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*
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* Therefore, soft stop may still be disabled due to HW issues.
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*
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* @note Soft stop will still be used for non-scheduling purposes e.g. when terminating a context.
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*
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* @note if not in use, define this value to 0 instead of \#undef'ing it
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*/
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#define KBASE_DISABLE_SCHEDULING_SOFT_STOPS 0
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/**
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* Prevent hard-stops from occuring in scheduling situations
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*
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* This is not due to HW issues, but when scheduling is desired to be more predictable.
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*
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* @note Hard stop will still be used for non-scheduling purposes e.g. when terminating a context.
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*
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* @note if not in use, define this value to 0 instead of \#undef'ing it
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*/
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#define KBASE_DISABLE_SCHEDULING_HARD_STOPS 0
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/**
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* The maximum number of Job Slots to support in the Hardware.
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*
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* You can optimize this down if your target devices will only ever support a
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* small number of job slots.
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*/
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#define BASE_JM_MAX_NR_SLOTS 3
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/**
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* The maximum number of Address Spaces to support in the Hardware.
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*
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* You can optimize this down if your target devices will only ever support a
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* small number of Address Spaces
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*/
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#define BASE_MAX_NR_AS 16
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/* mmu */
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#define MIDGARD_MMU_VA_BITS 48
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#if MIDGARD_MMU_VA_BITS > 39
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#define MIDGARD_MMU_TOPLEVEL 0
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#else
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#define MIDGARD_MMU_TOPLEVEL 1
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#endif
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#define MIDGARD_MMU_BOTTOMLEVEL 3
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#define GROWABLE_FLAGS_REQUIRED (KBASE_REG_PF_GROW | KBASE_REG_GPU_WR)
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/** setting in kbase_context::as_nr that indicates it's invalid */
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#define KBASEP_AS_NR_INVALID (-1)
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#define KBASE_LOCK_REGION_MAX_SIZE (63)
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#define KBASE_LOCK_REGION_MIN_SIZE (11)
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#define KBASE_TRACE_SIZE_LOG2 8 /* 256 entries */
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#define KBASE_TRACE_SIZE (1 << KBASE_TRACE_SIZE_LOG2)
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#define KBASE_TRACE_MASK ((1 << KBASE_TRACE_SIZE_LOG2)-1)
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#include "mali_kbase_js_defs.h"
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#include "mali_kbase_hwaccess_defs.h"
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#define KBASEP_FORCE_REPLAY_DISABLED 0
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/* Maximum force replay limit when randomization is enabled */
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#define KBASEP_FORCE_REPLAY_RANDOM_LIMIT 16
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/** Atom has been previously soft-stoppped */
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#define KBASE_KATOM_FLAG_BEEN_SOFT_STOPPPED (1<<1)
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/** Atom has been previously retried to execute */
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#define KBASE_KATOM_FLAGS_RERUN (1<<2)
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#define KBASE_KATOM_FLAGS_JOBCHAIN (1<<3)
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/** Atom has been previously hard-stopped. */
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#define KBASE_KATOM_FLAG_BEEN_HARD_STOPPED (1<<4)
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/** Atom has caused us to enter disjoint state */
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#define KBASE_KATOM_FLAG_IN_DISJOINT (1<<5)
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/* Atom blocked on cross-slot dependency */
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#define KBASE_KATOM_FLAG_X_DEP_BLOCKED (1<<7)
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/* Atom has fail dependency on cross-slot dependency */
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#define KBASE_KATOM_FLAG_FAIL_BLOCKER (1<<8)
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/* Atom is currently in the list of atoms blocked on cross-slot dependencies */
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#define KBASE_KATOM_FLAG_JSCTX_IN_X_DEP_LIST (1<<9)
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/* Atom is currently holding a context reference */
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#define KBASE_KATOM_FLAG_HOLDING_CTX_REF (1<<10)
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/* Atom requires GPU to be in protected mode */
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#define KBASE_KATOM_FLAG_PROTECTED (1<<11)
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/* Atom has been stored in runnable_tree */
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#define KBASE_KATOM_FLAG_JSCTX_IN_TREE (1<<12)
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/* SW related flags about types of JS_COMMAND action
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* NOTE: These must be masked off by JS_COMMAND_MASK */
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/** This command causes a disjoint event */
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#define JS_COMMAND_SW_CAUSES_DISJOINT 0x100
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/** Bitmask of all SW related flags */
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#define JS_COMMAND_SW_BITS (JS_COMMAND_SW_CAUSES_DISJOINT)
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#if (JS_COMMAND_SW_BITS & JS_COMMAND_MASK)
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#error JS_COMMAND_SW_BITS not masked off by JS_COMMAND_MASK. Must update JS_COMMAND_SW_<..> bitmasks
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#endif
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/** Soft-stop command that causes a Disjoint event. This of course isn't
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* entirely masked off by JS_COMMAND_MASK */
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#define JS_COMMAND_SOFT_STOP_WITH_SW_DISJOINT \
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(JS_COMMAND_SW_CAUSES_DISJOINT | JS_COMMAND_SOFT_STOP)
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#define KBASEP_ATOM_ID_INVALID BASE_JD_ATOM_COUNT
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/* Serialize atoms within a slot (ie only one atom per job slot) */
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#define KBASE_SERIALIZE_INTRA_SLOT (1 << 0)
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/* Serialize atoms between slots (ie only one job slot running at any time) */
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#define KBASE_SERIALIZE_INTER_SLOT (1 << 1)
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/* Reset the GPU after each atom completion */
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#define KBASE_SERIALIZE_RESET (1 << 2)
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#ifdef CONFIG_DEBUG_FS
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struct base_job_fault_event {
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u32 event_code;
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struct kbase_jd_atom *katom;
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struct work_struct job_fault_work;
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struct list_head head;
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int reg_offset;
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};
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#endif
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struct kbase_jd_atom_dependency {
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struct kbase_jd_atom *atom;
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u8 dep_type;
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};
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/**
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* struct kbase_io_access - holds information about 1 register access
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*
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* @addr: first bit indicates r/w (r=0, w=1)
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* @value: value written or read
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*/
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struct kbase_io_access {
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uintptr_t addr;
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u32 value;
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};
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/**
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* struct kbase_io_history - keeps track of all recent register accesses
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*
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* @enabled: true if register accesses are recorded, false otherwise
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* @lock: spinlock protecting kbase_io_access array
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* @count: number of registers read/written
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* @size: number of elements in kbase_io_access array
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* @buf: array of kbase_io_access
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*/
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struct kbase_io_history {
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0))
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bool enabled;
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#else
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u32 enabled;
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#endif
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spinlock_t lock;
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size_t count;
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u16 size;
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struct kbase_io_access *buf;
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};
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/**
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* @brief The function retrieves a read-only reference to the atom field from
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* the kbase_jd_atom_dependency structure
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*
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* @param[in] dep kbase jd atom dependency.
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*
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* @return readonly reference to dependent ATOM.
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*/
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static inline const struct kbase_jd_atom * kbase_jd_katom_dep_atom(const struct kbase_jd_atom_dependency *dep)
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{
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LOCAL_ASSERT(dep != NULL);
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return (const struct kbase_jd_atom *)(dep->atom);
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}
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/**
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* @brief The function retrieves a read-only reference to the dependency type field from
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* the kbase_jd_atom_dependency structure
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*
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* @param[in] dep kbase jd atom dependency.
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*
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* @return A dependency type value.
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*/
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static inline u8 kbase_jd_katom_dep_type(const struct kbase_jd_atom_dependency *dep)
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{
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LOCAL_ASSERT(dep != NULL);
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return dep->dep_type;
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}
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/**
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* @brief Setter macro for dep_atom array entry in kbase_jd_atom
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*
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* @param[in] dep The kbase jd atom dependency.
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* @param[in] a The ATOM to be set as a dependency.
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* @param type The ATOM dependency type to be set.
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*
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*/
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static inline void kbase_jd_katom_dep_set(const struct kbase_jd_atom_dependency *const_dep,
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struct kbase_jd_atom *a, u8 type)
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{
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struct kbase_jd_atom_dependency *dep;
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LOCAL_ASSERT(const_dep != NULL);
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dep = (struct kbase_jd_atom_dependency *)const_dep;
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dep->atom = a;
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dep->dep_type = type;
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}
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/**
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* @brief Setter macro for dep_atom array entry in kbase_jd_atom
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*
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* @param[in] dep The kbase jd atom dependency to be cleared.
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*
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*/
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static inline void kbase_jd_katom_dep_clear(const struct kbase_jd_atom_dependency *const_dep)
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{
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struct kbase_jd_atom_dependency *dep;
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LOCAL_ASSERT(const_dep != NULL);
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dep = (struct kbase_jd_atom_dependency *)const_dep;
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dep->atom = NULL;
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dep->dep_type = BASE_JD_DEP_TYPE_INVALID;
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}
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enum kbase_atom_gpu_rb_state {
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/* Atom is not currently present in slot ringbuffer */
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KBASE_ATOM_GPU_RB_NOT_IN_SLOT_RB,
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/* Atom is in slot ringbuffer but is blocked on a previous atom */
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KBASE_ATOM_GPU_RB_WAITING_BLOCKED,
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/* Atom is in slot ringbuffer but is waiting for a previous protected
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* mode transition to complete */
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KBASE_ATOM_GPU_RB_WAITING_PROTECTED_MODE_PREV,
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/* Atom is in slot ringbuffer but is waiting for proected mode
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* transition */
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KBASE_ATOM_GPU_RB_WAITING_PROTECTED_MODE_TRANSITION,
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/* Atom is in slot ringbuffer but is waiting for cores to become
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* available */
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KBASE_ATOM_GPU_RB_WAITING_FOR_CORE_AVAILABLE,
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/* Atom is in slot ringbuffer but is blocked on affinity */
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KBASE_ATOM_GPU_RB_WAITING_AFFINITY,
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/* Atom is in slot ringbuffer and ready to run */
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KBASE_ATOM_GPU_RB_READY,
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/* Atom is in slot ringbuffer and has been submitted to the GPU */
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KBASE_ATOM_GPU_RB_SUBMITTED,
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/* Atom must be returned to JS as soon as it reaches the head of the
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* ringbuffer due to a previous failure */
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KBASE_ATOM_GPU_RB_RETURN_TO_JS = -1
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};
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enum kbase_atom_enter_protected_state {
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/*
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* Starting state:
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* Check if a transition into protected mode is required.
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*
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* NOTE: The integer value of this must
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* match KBASE_ATOM_EXIT_PROTECTED_CHECK.
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*/
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KBASE_ATOM_ENTER_PROTECTED_CHECK = 0,
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/* Wait for vinstr to suspend. */
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KBASE_ATOM_ENTER_PROTECTED_VINSTR,
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/* Wait for the L2 to become idle in preparation for
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* the coherency change. */
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KBASE_ATOM_ENTER_PROTECTED_IDLE_L2,
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/* End state;
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* Prepare coherency change. */
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KBASE_ATOM_ENTER_PROTECTED_FINISHED,
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};
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enum kbase_atom_exit_protected_state {
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/*
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* Starting state:
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* Check if a transition out of protected mode is required.
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*
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* NOTE: The integer value of this must
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* match KBASE_ATOM_ENTER_PROTECTED_CHECK.
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*/
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KBASE_ATOM_EXIT_PROTECTED_CHECK = 0,
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/* Wait for the L2 to become idle in preparation
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* for the reset. */
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KBASE_ATOM_EXIT_PROTECTED_IDLE_L2,
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/* Issue the protected reset. */
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KBASE_ATOM_EXIT_PROTECTED_RESET,
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/* End state;
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* Wait for the reset to complete. */
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KBASE_ATOM_EXIT_PROTECTED_RESET_WAIT,
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};
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struct kbase_ext_res {
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u64 gpu_address;
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struct kbase_mem_phy_alloc *alloc;
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};
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struct kbase_jd_atom {
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struct work_struct work;
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ktime_t start_timestamp;
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struct base_jd_udata udata;
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struct kbase_context *kctx;
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struct list_head dep_head[2];
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struct list_head dep_item[2];
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const struct kbase_jd_atom_dependency dep[2];
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/* List head used during job dispatch job_done processing - as
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* dependencies may not be entirely resolved at this point, we need to
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* use a separate list head. */
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struct list_head jd_item;
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/* true if atom's jd_item is currently on a list. Prevents atom being
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* processed twice. */
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bool in_jd_list;
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u16 nr_extres;
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struct kbase_ext_res *extres;
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u32 device_nr;
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u64 affinity;
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u64 jc;
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enum kbase_atom_coreref_state coreref_state;
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#ifdef CONFIG_KDS
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struct list_head node;
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struct kds_resource_set *kds_rset;
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bool kds_dep_satisfied;
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#endif /* CONFIG_KDS */
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#if defined(CONFIG_SYNC)
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/* Stores either an input or output fence, depending on soft-job type */
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struct sync_fence *fence;
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struct sync_fence_waiter sync_waiter;
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#endif /* CONFIG_SYNC */
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#if defined(CONFIG_MALI_DMA_FENCE) || defined(CONFIG_SYNC_FILE)
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struct {
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/* Use the functions/API defined in mali_kbase_fence.h to
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* when working with this sub struct */
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#if defined(CONFIG_SYNC_FILE)
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/* Input fence */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0))
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struct fence *fence_in;
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#else
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struct dma_fence *fence_in;
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#endif
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#endif
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/* This points to the dma-buf output fence for this atom. If
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* this is NULL then there is no fence for this atom and the
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* following fields related to dma_fence may have invalid data.
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*
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* The context and seqno fields contain the details for this
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* fence.
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*
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* This fence is signaled when the katom is completed,
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* regardless of the event_code of the katom (signal also on
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* failure).
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*/
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0))
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struct fence *fence;
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#else
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struct dma_fence *fence;
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#endif
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/* The dma-buf fence context number for this atom. A unique
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* context number is allocated to each katom in the context on
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* context creation.
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*/
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unsigned int context;
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/* The dma-buf fence sequence number for this atom. This is
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* increased every time this katom uses dma-buf fence.
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*/
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atomic_t seqno;
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/* This contains a list of all callbacks set up to wait on
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* other fences. This atom must be held back from JS until all
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* these callbacks have been called and dep_count have reached
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* 0. The initial value of dep_count must be equal to the
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* number of callbacks on this list.
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*
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* This list is protected by jctx.lock. Callbacks are added to
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* this list when the atom is built and the wait are set up.
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* All the callbacks then stay on the list until all callbacks
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* have been called and the atom is queued, or cancelled, and
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* then all callbacks are taken off the list and freed.
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*/
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struct list_head callbacks;
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/* Atomic counter of number of outstandind dma-buf fence
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* dependencies for this atom. When dep_count reaches 0 the
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* atom may be queued.
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*
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* The special value "-1" may only be set after the count
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* reaches 0, while holding jctx.lock. This indicates that the
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* atom has been handled, either queued in JS or cancelled.
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*
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* If anyone but the dma-fence worker sets this to -1 they must
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* ensure that any potentially queued worker must have
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* completed before allowing the atom to be marked as unused.
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* This can be done by flushing the fence work queue:
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* kctx->dma_fence.wq.
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*/
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atomic_t dep_count;
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} dma_fence;
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#endif /* CONFIG_MALI_DMA_FENCE || CONFIG_SYNC_FILE*/
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/* Note: refer to kbasep_js_atom_retained_state, which will take a copy of some of the following members */
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enum base_jd_event_code event_code;
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base_jd_core_req core_req; /**< core requirements */
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/** Job Slot to retry submitting to if submission from IRQ handler failed
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*
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* NOTE: see if this can be unified into the another member e.g. the event */
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int retry_submit_on_slot;
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u32 ticks;
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/* JS atom priority with respect to other atoms on its kctx. */
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int sched_priority;
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int poking; /* BASE_HW_ISSUE_8316 */
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wait_queue_head_t completed;
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enum kbase_jd_atom_state status;
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#ifdef CONFIG_GPU_TRACEPOINTS
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int work_id;
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#endif
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/* Assigned after atom is completed. Used to check whether PRLAM-10676 workaround should be applied */
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int slot_nr;
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u32 atom_flags;
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/* Number of times this atom has been retried. Used by replay soft job.
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*/
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int retry_count;
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enum kbase_atom_gpu_rb_state gpu_rb_state;
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u64 need_cache_flush_cores_retained;
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atomic_t blocked;
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/* Pointer to atom that this atom has same-slot dependency on */
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struct kbase_jd_atom *pre_dep;
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/* Pointer to atom that has same-slot dependency on this atom */
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struct kbase_jd_atom *post_dep;
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/* Pointer to atom that this atom has cross-slot dependency on */
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struct kbase_jd_atom *x_pre_dep;
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/* Pointer to atom that has cross-slot dependency on this atom */
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struct kbase_jd_atom *x_post_dep;
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/* The GPU's flush count recorded at the time of submission, used for
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* the cache flush optimisation */
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u32 flush_id;
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struct kbase_jd_atom_backend backend;
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#ifdef CONFIG_DEBUG_FS
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struct base_job_fault_event fault_event;
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#endif
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/* List head used for three different purposes:
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* 1. Overflow list for JS ring buffers. If an atom is ready to run,
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* but there is no room in the JS ring buffer, then the atom is put
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* on the ring buffer's overflow list using this list node.
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* 2. List of waiting soft jobs.
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*/
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struct list_head queue;
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/* Used to keep track of all JIT free/alloc jobs in submission order
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*/
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struct list_head jit_node;
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bool jit_blocked;
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/* If non-zero, this indicates that the atom will fail with the set
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* event_code when the atom is processed. */
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enum base_jd_event_code will_fail_event_code;
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/* Atoms will only ever be transitioning into, or out of
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* protected mode so we do not need two separate fields.
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*/
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union {
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enum kbase_atom_enter_protected_state enter;
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enum kbase_atom_exit_protected_state exit;
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} protected_state;
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struct rb_node runnable_tree_node;
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/* 'Age' of atom relative to other atoms in the context. */
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u32 age;
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};
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static inline bool kbase_jd_katom_is_protected(const struct kbase_jd_atom *katom)
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{
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return (bool)(katom->atom_flags & KBASE_KATOM_FLAG_PROTECTED);
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}
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/*
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* Theory of operations:
|
*
|
* Atom objects are statically allocated within the context structure.
|
*
|
* Each atom is the head of two lists, one for the "left" set of dependencies, one for the "right" set.
|
*/
|
|
#define KBASE_JD_DEP_QUEUE_SIZE 256
|
|
struct kbase_jd_context {
|
struct mutex lock;
|
struct kbasep_js_kctx_info sched_info;
|
struct kbase_jd_atom atoms[BASE_JD_ATOM_COUNT];
|
|
/** Tracks all job-dispatch jobs. This includes those not tracked by
|
* the scheduler: 'not ready to run' and 'dependency-only' jobs. */
|
u32 job_nr;
|
|
/** Waitq that reflects whether there are no jobs (including SW-only
|
* dependency jobs). This is set when no jobs are present on the ctx,
|
* and clear when there are jobs.
|
*
|
* @note: Job Dispatcher knows about more jobs than the Job Scheduler:
|
* the Job Scheduler is unaware of jobs that are blocked on dependencies,
|
* and SW-only dependency jobs.
|
*
|
* This waitq can be waited upon to find out when the context jobs are all
|
* done/cancelled (including those that might've been blocked on
|
* dependencies) - and so, whether it can be terminated. However, it should
|
* only be terminated once it is not present in the run-pool (see
|
* kbasep_js_kctx_info::ctx::is_scheduled).
|
*
|
* Since the waitq is only set under kbase_jd_context::lock,
|
* the waiter should also briefly obtain and drop kbase_jd_context::lock to
|
* guarentee that the setter has completed its work on the kbase_context
|
*
|
* This must be updated atomically with:
|
* - kbase_jd_context::job_nr */
|
wait_queue_head_t zero_jobs_wait;
|
|
/** Job Done workqueue. */
|
struct workqueue_struct *job_done_wq;
|
|
spinlock_t tb_lock;
|
u32 *tb;
|
size_t tb_wrap_offset;
|
|
#ifdef CONFIG_KDS
|
struct kds_callback kds_cb;
|
#endif /* CONFIG_KDS */
|
#ifdef CONFIG_GPU_TRACEPOINTS
|
atomic_t work_id;
|
#endif
|
};
|
|
struct kbase_device_info {
|
u32 features;
|
};
|
|
/** Poking state for BASE_HW_ISSUE_8316 */
|
enum {
|
KBASE_AS_POKE_STATE_IN_FLIGHT = 1<<0,
|
KBASE_AS_POKE_STATE_KILLING_POKE = 1<<1
|
};
|
|
/** Poking state for BASE_HW_ISSUE_8316 */
|
typedef u32 kbase_as_poke_state;
|
|
struct kbase_mmu_setup {
|
u64 transtab;
|
u64 memattr;
|
u64 transcfg;
|
};
|
|
/**
|
* Important: Our code makes assumptions that a struct kbase_as structure is always at
|
* kbase_device->as[number]. This is used to recover the containing
|
* struct kbase_device from a struct kbase_as structure.
|
*
|
* Therefore, struct kbase_as structures must not be allocated anywhere else.
|
*/
|
struct kbase_as {
|
int number;
|
|
struct workqueue_struct *pf_wq;
|
struct work_struct work_pagefault;
|
struct work_struct work_busfault;
|
enum kbase_mmu_fault_type fault_type;
|
bool protected_mode;
|
u32 fault_status;
|
u64 fault_addr;
|
u64 fault_extra_addr;
|
|
struct kbase_mmu_setup current_setup;
|
|
/* BASE_HW_ISSUE_8316 */
|
struct workqueue_struct *poke_wq;
|
struct work_struct poke_work;
|
/** Protected by hwaccess_lock */
|
int poke_refcount;
|
/** Protected by hwaccess_lock */
|
kbase_as_poke_state poke_state;
|
struct hrtimer poke_timer;
|
};
|
|
static inline int kbase_as_has_bus_fault(struct kbase_as *as)
|
{
|
return as->fault_type == KBASE_MMU_FAULT_TYPE_BUS;
|
}
|
|
static inline int kbase_as_has_page_fault(struct kbase_as *as)
|
{
|
return as->fault_type == KBASE_MMU_FAULT_TYPE_PAGE;
|
}
|
|
struct kbasep_mem_device {
|
atomic_t used_pages; /* Tracks usage of OS shared memory. Updated
|
when OS memory is allocated/freed. */
|
|
};
|
|
#define KBASE_TRACE_CODE(X) KBASE_TRACE_CODE_ ## X
|
|
enum kbase_trace_code {
|
/* IMPORTANT: USE OF SPECIAL #INCLUDE OF NON-STANDARD HEADER FILE
|
* THIS MUST BE USED AT THE START OF THE ENUM */
|
#define KBASE_TRACE_CODE_MAKE_CODE(X) KBASE_TRACE_CODE(X)
|
#include "mali_kbase_trace_defs.h"
|
#undef KBASE_TRACE_CODE_MAKE_CODE
|
/* Comma on its own, to extend the list */
|
,
|
/* Must be the last in the enum */
|
KBASE_TRACE_CODE_COUNT
|
};
|
|
#define KBASE_TRACE_FLAG_REFCOUNT (((u8)1) << 0)
|
#define KBASE_TRACE_FLAG_JOBSLOT (((u8)1) << 1)
|
|
struct kbase_trace {
|
struct timespec64 timestamp;
|
u32 thread_id;
|
u32 cpu;
|
void *ctx;
|
bool katom;
|
int atom_number;
|
u64 atom_udata[2];
|
u64 gpu_addr;
|
unsigned long info_val;
|
u8 code;
|
u8 jobslot;
|
u8 refcount;
|
u8 flags;
|
};
|
|
/** Event IDs for the power management framework.
|
*
|
* Any of these events might be missed, so they should not be relied upon to
|
* find the precise state of the GPU at a particular time in the
|
* trace. Overall, we should get a high percentage of these events for
|
* statisical purposes, and so a few missing should not be a problem */
|
enum kbase_timeline_pm_event {
|
/* helper for tests */
|
KBASEP_TIMELINE_PM_EVENT_FIRST,
|
|
/** Event reserved for backwards compatibility with 'init' events */
|
KBASE_TIMELINE_PM_EVENT_RESERVED_0 = KBASEP_TIMELINE_PM_EVENT_FIRST,
|
|
/** The power state of the device has changed.
|
*
|
* Specifically, the device has reached a desired or available state.
|
*/
|
KBASE_TIMELINE_PM_EVENT_GPU_STATE_CHANGED,
|
|
/** The GPU is becoming active.
|
*
|
* This event is sent when the first context is about to use the GPU.
|
*/
|
KBASE_TIMELINE_PM_EVENT_GPU_ACTIVE,
|
|
/** The GPU is becoming idle.
|
*
|
* This event is sent when the last context has finished using the GPU.
|
*/
|
KBASE_TIMELINE_PM_EVENT_GPU_IDLE,
|
|
/** Event reserved for backwards compatibility with 'policy_change'
|
* events */
|
KBASE_TIMELINE_PM_EVENT_RESERVED_4,
|
|
/** Event reserved for backwards compatibility with 'system_suspend'
|
* events */
|
KBASE_TIMELINE_PM_EVENT_RESERVED_5,
|
|
/** Event reserved for backwards compatibility with 'system_resume'
|
* events */
|
KBASE_TIMELINE_PM_EVENT_RESERVED_6,
|
|
/** The job scheduler is requesting to power up/down cores.
|
*
|
* This event is sent when:
|
* - powered down cores are needed to complete a job
|
* - powered up cores are not needed anymore
|
*/
|
KBASE_TIMELINE_PM_EVENT_CHANGE_GPU_STATE,
|
|
KBASEP_TIMELINE_PM_EVENT_LAST = KBASE_TIMELINE_PM_EVENT_CHANGE_GPU_STATE,
|
};
|
|
#ifdef CONFIG_MALI_TRACE_TIMELINE
|
struct kbase_trace_kctx_timeline {
|
atomic_t jd_atoms_in_flight;
|
u32 owner_tgid;
|
};
|
|
struct kbase_trace_kbdev_timeline {
|
/* Note: strictly speaking, not needed, because it's in sync with
|
* kbase_device::jm_slots[]::submitted_nr
|
*
|
* But it's kept as an example of how to add global timeline tracking
|
* information
|
*
|
* The caller must hold hwaccess_lock when accessing this */
|
u8 slot_atoms_submitted[BASE_JM_MAX_NR_SLOTS];
|
|
/* Last UID for each PM event */
|
atomic_t pm_event_uid[KBASEP_TIMELINE_PM_EVENT_LAST+1];
|
/* Counter for generating PM event UIDs */
|
atomic_t pm_event_uid_counter;
|
/*
|
* L2 transition state - true indicates that the transition is ongoing
|
* Expected to be protected by hwaccess_lock */
|
bool l2_transitioning;
|
};
|
#endif /* CONFIG_MALI_TRACE_TIMELINE */
|
|
|
struct kbasep_kctx_list_element {
|
struct list_head link;
|
struct kbase_context *kctx;
|
};
|
|
/**
|
* Data stored per device for power management.
|
*
|
* This structure contains data for the power management framework. There is one
|
* instance of this structure per device in the system.
|
*/
|
struct kbase_pm_device_data {
|
/**
|
* The lock protecting Power Management structures accessed outside of
|
* IRQ.
|
*
|
* This lock must also be held whenever the GPU is being powered on or
|
* off.
|
*/
|
struct mutex lock;
|
|
/** The reference count of active contexts on this device. */
|
int active_count;
|
/** Flag indicating suspending/suspended */
|
bool suspending;
|
/* Wait queue set when active_count == 0 */
|
wait_queue_head_t zero_active_count_wait;
|
|
/**
|
* Bit masks identifying the available shader cores that are specified
|
* via sysfs. One mask per job slot.
|
*/
|
u64 debug_core_mask[BASE_JM_MAX_NR_SLOTS];
|
u64 debug_core_mask_all;
|
|
/**
|
* Callback for initializing the runtime power management.
|
*
|
* @param kbdev The kbase device
|
*
|
* @return 0 on success, else error code
|
*/
|
int (*callback_power_runtime_init)(struct kbase_device *kbdev);
|
|
/**
|
* Callback for terminating the runtime power management.
|
*
|
* @param kbdev The kbase device
|
*/
|
void (*callback_power_runtime_term)(struct kbase_device *kbdev);
|
|
/* Time in milliseconds between each dvfs sample */
|
u32 dvfs_period;
|
|
/* Period of GPU poweroff timer */
|
ktime_t gpu_poweroff_time;
|
|
/* Number of ticks of GPU poweroff timer before shader is powered off */
|
int poweroff_shader_ticks;
|
|
/* Number of ticks of GPU poweroff timer before GPU is powered off */
|
int poweroff_gpu_ticks;
|
|
struct kbase_pm_backend_data backend;
|
};
|
|
/**
|
* struct kbase_mem_pool - Page based memory pool for kctx/kbdev
|
* @kbdev: Kbase device where memory is used
|
* @cur_size: Number of free pages currently in the pool (may exceed @max_size
|
* in some corner cases)
|
* @max_size: Maximum number of free pages in the pool
|
* @pool_lock: Lock protecting the pool - must be held when modifying @cur_size
|
* and @page_list
|
* @page_list: List of free pages in the pool
|
* @reclaim: Shrinker for kernel reclaim of free pages
|
* @next_pool: Pointer to next pool where pages can be allocated when this pool
|
* is empty. Pages will spill over to the next pool when this pool
|
* is full. Can be NULL if there is no next pool.
|
*/
|
struct kbase_mem_pool {
|
struct kbase_device *kbdev;
|
size_t cur_size;
|
size_t max_size;
|
spinlock_t pool_lock;
|
struct list_head page_list;
|
struct shrinker reclaim;
|
|
struct kbase_mem_pool *next_pool;
|
};
|
|
/**
|
* struct kbase_devfreq_opp - Lookup table for converting between nominal OPP
|
* frequency, and real frequency and core mask
|
* @opp_freq: Nominal OPP frequency
|
* @real_freq: Real GPU frequency
|
* @core_mask: Shader core mask
|
*/
|
struct kbase_devfreq_opp {
|
u64 opp_freq;
|
u64 real_freq;
|
u64 core_mask;
|
};
|
|
#define DEVNAME_SIZE 16
|
|
struct kbase_device {
|
s8 slot_submit_count_irq[BASE_JM_MAX_NR_SLOTS];
|
|
u32 hw_quirks_sc;
|
u32 hw_quirks_tiler;
|
u32 hw_quirks_mmu;
|
u32 hw_quirks_jm;
|
|
struct list_head entry;
|
struct device *dev;
|
unsigned int kbase_group_error;
|
struct miscdevice mdev;
|
u64 reg_start;
|
size_t reg_size;
|
void __iomem *reg;
|
|
struct {
|
int irq;
|
int flags;
|
} irqs[3];
|
|
struct clk *clock;
|
#ifdef CONFIG_REGULATOR
|
struct regulator *regulator;
|
#endif
|
char devname[DEVNAME_SIZE];
|
|
#ifdef CONFIG_MALI_NO_MALI
|
void *model;
|
struct kmem_cache *irq_slab;
|
struct workqueue_struct *irq_workq;
|
atomic_t serving_job_irq;
|
atomic_t serving_gpu_irq;
|
atomic_t serving_mmu_irq;
|
spinlock_t reg_op_lock;
|
#endif /* CONFIG_MALI_NO_MALI */
|
|
struct kbase_pm_device_data pm;
|
struct kbasep_js_device_data js_data;
|
struct kbase_mem_pool mem_pool;
|
struct kbasep_mem_device memdev;
|
struct kbase_mmu_mode const *mmu_mode;
|
|
struct kbase_as as[BASE_MAX_NR_AS];
|
/* The below variables (as_free and as_to_kctx) are managed by the
|
* Context Scheduler. The kbasep_js_device_data::runpool_irq::lock must
|
* be held whilst accessing these.
|
*/
|
u16 as_free; /* Bitpattern of free Address Spaces */
|
/* Mapping from active Address Spaces to kbase_context */
|
struct kbase_context *as_to_kctx[BASE_MAX_NR_AS];
|
|
|
spinlock_t mmu_mask_change;
|
|
struct kbase_gpu_props gpu_props;
|
|
/** List of SW workarounds for HW issues */
|
unsigned long hw_issues_mask[(BASE_HW_ISSUE_END + BITS_PER_LONG - 1) / BITS_PER_LONG];
|
/** List of features available */
|
unsigned long hw_features_mask[(BASE_HW_FEATURE_END + BITS_PER_LONG - 1) / BITS_PER_LONG];
|
|
/* Bitmaps of cores that are currently in use (running jobs).
|
* These should be kept up to date by the job scheduler.
|
*
|
* pm.power_change_lock should be held when accessing these members.
|
*
|
* kbase_pm_check_transitions_nolock() should be called when bits are
|
* cleared to update the power management system and allow transitions to
|
* occur. */
|
u64 shader_inuse_bitmap;
|
|
/* Refcount for cores in use */
|
u32 shader_inuse_cnt[64];
|
|
/* Bitmaps of cores the JS needs for jobs ready to run */
|
u64 shader_needed_bitmap;
|
|
/* Refcount for cores needed */
|
u32 shader_needed_cnt[64];
|
|
u32 tiler_inuse_cnt;
|
|
u32 tiler_needed_cnt;
|
|
/* struct for keeping track of the disjoint information
|
*
|
* The state is > 0 if the GPU is in a disjoint state. Otherwise 0
|
* The count is the number of disjoint events that have occurred on the GPU
|
*/
|
struct {
|
atomic_t count;
|
atomic_t state;
|
} disjoint_event;
|
|
/* Refcount for tracking users of the l2 cache, e.g. when using hardware counter instrumentation. */
|
u32 l2_users_count;
|
|
/* Bitmaps of cores that are currently available (powered up and the power policy is happy for jobs to be
|
* submitted to these cores. These are updated by the power management code. The job scheduler should avoid
|
* submitting new jobs to any cores that are not marked as available.
|
*
|
* pm.power_change_lock should be held when accessing these members.
|
*/
|
u64 shader_available_bitmap;
|
u64 tiler_available_bitmap;
|
u64 l2_available_bitmap;
|
u64 stack_available_bitmap;
|
|
u64 shader_ready_bitmap;
|
u64 shader_transitioning_bitmap;
|
|
s8 nr_hw_address_spaces; /**< Number of address spaces in the GPU (constant after driver initialisation) */
|
s8 nr_user_address_spaces; /**< Number of address spaces available to user contexts */
|
|
/* Structure used for instrumentation and HW counters dumping */
|
struct kbase_hwcnt {
|
/* The lock should be used when accessing any of the following members */
|
spinlock_t lock;
|
|
struct kbase_context *kctx;
|
u64 addr;
|
|
struct kbase_instr_backend backend;
|
} hwcnt;
|
|
struct kbase_vinstr_context *vinstr_ctx;
|
|
#if KBASE_TRACE_ENABLE
|
spinlock_t trace_lock;
|
u16 trace_first_out;
|
u16 trace_next_in;
|
struct kbase_trace *trace_rbuf;
|
#endif
|
|
u32 reset_timeout_ms;
|
|
struct mutex cacheclean_lock;
|
|
/* Platform specific private data to be accessed by mali_kbase_config_xxx.c only */
|
void *platform_context;
|
|
/* List of kbase_contexts created */
|
struct list_head kctx_list;
|
struct mutex kctx_list_lock;
|
|
struct rockchip_opp_info opp_info;
|
#ifdef CONFIG_MALI_DEVFREQ
|
struct devfreq_dev_profile devfreq_profile;
|
struct devfreq *devfreq;
|
unsigned long current_freq;
|
unsigned long current_nominal_freq;
|
unsigned long current_voltage;
|
u64 current_core_mask;
|
struct kbase_devfreq_opp *opp_table;
|
int num_opps;
|
struct monitor_dev_info *mdev_info;
|
#ifdef CONFIG_DEVFREQ_THERMAL
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 0)
|
struct devfreq_cooling_device *devfreq_cooling;
|
#else
|
struct thermal_cooling_device *devfreq_cooling;
|
#endif
|
/* Current IPA model - true for configured model, false for fallback */
|
atomic_t ipa_use_configured_model;
|
struct {
|
/* Access to this struct must be with ipa.lock held */
|
struct mutex lock;
|
struct kbase_ipa_model *configured_model;
|
struct kbase_ipa_model *fallback_model;
|
} ipa;
|
#endif /* CONFIG_DEVFREQ_THERMAL */
|
#endif /* CONFIG_MALI_DEVFREQ */
|
|
|
#ifdef CONFIG_MALI_TRACE_TIMELINE
|
struct kbase_trace_kbdev_timeline timeline;
|
#endif
|
|
/*
|
* Control for enabling job dump on failure, set when control debugfs
|
* is opened.
|
*/
|
bool job_fault_debug;
|
|
#ifdef CONFIG_DEBUG_FS
|
/* directory for debugfs entries */
|
struct dentry *mali_debugfs_directory;
|
/* Root directory for per context entry */
|
struct dentry *debugfs_ctx_directory;
|
|
#ifdef CONFIG_MALI_DEBUG
|
/* bit for each as, set if there is new data to report */
|
u64 debugfs_as_read_bitmap;
|
#endif /* CONFIG_MALI_DEBUG */
|
|
/* failed job dump, used for separate debug process */
|
wait_queue_head_t job_fault_wq;
|
wait_queue_head_t job_fault_resume_wq;
|
struct workqueue_struct *job_fault_resume_workq;
|
struct list_head job_fault_event_list;
|
spinlock_t job_fault_event_lock;
|
struct kbase_context *kctx_fault;
|
|
#if !MALI_CUSTOMER_RELEASE
|
/* Per-device data for register dumping interface */
|
struct {
|
u16 reg_offset; /* Offset of a GPU_CONTROL register to be
|
dumped upon request */
|
} regs_dump_debugfs_data;
|
#endif /* !MALI_CUSTOMER_RELEASE */
|
#endif /* CONFIG_DEBUG_FS */
|
|
/* fbdump profiling controls set by gator */
|
u32 kbase_profiling_controls[FBDUMP_CONTROL_MAX];
|
|
|
#if MALI_CUSTOMER_RELEASE == 0
|
/* Number of jobs that are run before a job is forced to fail and
|
* replay. May be KBASEP_FORCE_REPLAY_DISABLED, to disable forced
|
* failures. */
|
int force_replay_limit;
|
/* Count of jobs between forced failures. Incremented on each job. A
|
* job is forced to fail once this is greater than or equal to
|
* force_replay_limit. */
|
int force_replay_count;
|
/* Core requirement for jobs to be failed and replayed. May be zero. */
|
base_jd_core_req force_replay_core_req;
|
/* true if force_replay_limit should be randomized. The random
|
* value will be in the range of 1 - KBASEP_FORCE_REPLAY_RANDOM_LIMIT.
|
*/
|
bool force_replay_random;
|
#endif
|
|
/* Total number of created contexts */
|
atomic_t ctx_num;
|
|
#ifdef CONFIG_DEBUG_FS
|
/* Holds the most recent register accesses */
|
struct kbase_io_history io_history;
|
#endif /* CONFIG_DEBUG_FS */
|
|
struct kbase_hwaccess_data hwaccess;
|
|
/* Count of page/bus faults waiting for workqueues to process */
|
atomic_t faults_pending;
|
|
/* true if GPU is powered off or power off operation is in progress */
|
bool poweroff_pending;
|
|
|
/* defaults for new context created for this device */
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0))
|
bool infinite_cache_active_default;
|
#else
|
u32 infinite_cache_active_default;
|
#endif
|
size_t mem_pool_max_size_default;
|
|
/* current gpu coherency mode */
|
u32 current_gpu_coherency_mode;
|
/* system coherency mode */
|
u32 system_coherency;
|
/* Flag to track when cci snoops have been enabled on the interface */
|
bool cci_snoop_enabled;
|
|
/* SMC function IDs to call into Trusted firmware to enable/disable
|
* cache snooping. Value of 0 indicates that they are not used
|
*/
|
u32 snoop_enable_smc;
|
u32 snoop_disable_smc;
|
|
/* Protected mode operations */
|
struct protected_mode_ops *protected_ops;
|
|
/* Protected device attached to this kbase device */
|
struct protected_mode_device *protected_dev;
|
|
/*
|
* true when GPU is put into protected mode
|
*/
|
bool protected_mode;
|
|
/*
|
* true when GPU is transitioning into or out of protected mode
|
*/
|
bool protected_mode_transition;
|
|
/*
|
* true if protected mode is supported
|
*/
|
bool protected_mode_support;
|
|
|
#ifdef CONFIG_MALI_DEBUG
|
wait_queue_head_t driver_inactive_wait;
|
bool driver_inactive;
|
#endif /* CONFIG_MALI_DEBUG */
|
|
#ifdef CONFIG_MALI_FPGA_BUS_LOGGER
|
/*
|
* Bus logger integration.
|
*/
|
struct bus_logger_client *buslogger;
|
#endif
|
/* Boolean indicating if an IRQ flush during reset is in progress. */
|
bool irq_reset_flush;
|
|
/* list of inited sub systems. Used during terminate/error recovery */
|
u32 inited_subsys;
|
|
spinlock_t hwaccess_lock;
|
|
/* Protects access to MMU operations */
|
struct mutex mmu_hw_mutex;
|
|
/* Current serialization mode. See KBASE_SERIALIZE_* for details */
|
u8 serialize_jobs;
|
};
|
|
/**
|
* struct jsctx_queue - JS context atom queue
|
* @runnable_tree: Root of RB-tree containing currently runnable atoms on this
|
* job slot.
|
* @x_dep_head: Head item of the linked list of atoms blocked on cross-slot
|
* dependencies. Atoms on this list will be moved to the
|
* runnable_tree when the blocking atom completes.
|
*
|
* hwaccess_lock must be held when accessing this structure.
|
*/
|
struct jsctx_queue {
|
struct rb_root runnable_tree;
|
struct list_head x_dep_head;
|
};
|
|
|
#define KBASE_API_VERSION(major, minor) ((((major) & 0xFFF) << 20) | \
|
(((minor) & 0xFFF) << 8) | \
|
((0 & 0xFF) << 0))
|
|
/**
|
* enum kbase_context_flags - Flags for kbase contexts
|
*
|
* @KCTX_COMPAT: Set when the context process is a compat process, 32-bit
|
* process on a 64-bit kernel.
|
*
|
* @KCTX_RUNNABLE_REF: Set when context is counted in
|
* kbdev->js_data.nr_contexts_runnable. Must hold queue_mutex when accessing.
|
*
|
* @KCTX_ACTIVE: Set when the context is active.
|
*
|
* @KCTX_PULLED: Set when last kick() caused atoms to be pulled from this
|
* context.
|
*
|
* @KCTX_MEM_PROFILE_INITIALIZED: Set when the context's memory profile has been
|
* initialized.
|
*
|
* @KCTX_INFINITE_CACHE: Set when infinite cache is to be enabled for new
|
* allocations. Existing allocations will not change.
|
*
|
* @KCTX_SUBMIT_DISABLED: Set to prevent context from submitting any jobs.
|
*
|
* @KCTX_PRIVILEGED:Set if the context uses an address space and should be kept
|
* scheduled in.
|
*
|
* @KCTX_SCHEDULED: Set when the context is scheduled on the Run Pool.
|
* This is only ever updated whilst the jsctx_mutex is held.
|
*
|
* @KCTX_DYING: Set when the context process is in the process of being evicted.
|
*
|
* @KCTX_NO_IMPLICIT_SYNC: Set when explicit Android fences are in use on this
|
* context, to disable use of implicit dma-buf fences. This is used to avoid
|
* potential synchronization deadlocks.
|
*
|
* All members need to be separate bits. This enum is intended for use in a
|
* bitmask where multiple values get OR-ed together.
|
*/
|
enum kbase_context_flags {
|
KCTX_COMPAT = 1U << 0,
|
KCTX_RUNNABLE_REF = 1U << 1,
|
KCTX_ACTIVE = 1U << 2,
|
KCTX_PULLED = 1U << 3,
|
KCTX_MEM_PROFILE_INITIALIZED = 1U << 4,
|
KCTX_INFINITE_CACHE = 1U << 5,
|
KCTX_SUBMIT_DISABLED = 1U << 6,
|
KCTX_PRIVILEGED = 1U << 7,
|
KCTX_SCHEDULED = 1U << 8,
|
KCTX_DYING = 1U << 9,
|
KCTX_NO_IMPLICIT_SYNC = 1U << 10,
|
};
|
|
struct kbase_context {
|
struct file *filp;
|
struct kbase_device *kbdev;
|
int id; /* System wide unique id */
|
unsigned long api_version;
|
phys_addr_t pgd;
|
struct list_head event_list;
|
struct list_head event_coalesce_list;
|
struct mutex event_mutex;
|
atomic_t event_closed;
|
struct workqueue_struct *event_workq;
|
atomic_t event_count;
|
int event_coalesce_count;
|
|
atomic_t flags;
|
|
atomic_t setup_complete;
|
atomic_t setup_in_progress;
|
|
u64 *mmu_teardown_pages;
|
|
struct page *aliasing_sink_page;
|
|
struct mutex mmu_lock;
|
struct mutex reg_lock; /* To be converted to a rwlock? */
|
struct rb_root reg_rbtree_same; /* RB tree of GPU (live) regions,
|
* SAME_VA zone */
|
struct rb_root reg_rbtree_exec; /* RB tree of GPU (live) regions,
|
* EXEC zone */
|
struct rb_root reg_rbtree_custom; /* RB tree of GPU (live) regions,
|
* CUSTOM_VA zone */
|
|
unsigned long cookies;
|
struct kbase_va_region *pending_regions[BITS_PER_LONG];
|
|
wait_queue_head_t event_queue;
|
pid_t tgid;
|
pid_t pid;
|
|
struct kbase_jd_context jctx;
|
atomic_t used_pages;
|
atomic_t nonmapped_pages;
|
|
struct kbase_mem_pool mem_pool;
|
|
struct shrinker reclaim;
|
struct list_head evict_list;
|
|
struct list_head waiting_soft_jobs;
|
spinlock_t waiting_soft_jobs_lock;
|
#ifdef CONFIG_KDS
|
struct list_head waiting_kds_resource;
|
#endif
|
#ifdef CONFIG_MALI_DMA_FENCE
|
struct {
|
struct list_head waiting_resource;
|
struct workqueue_struct *wq;
|
} dma_fence;
|
#endif /* CONFIG_MALI_DMA_FENCE */
|
/** This is effectively part of the Run Pool, because it only has a valid
|
* setting (!=KBASEP_AS_NR_INVALID) whilst the context is scheduled in
|
*
|
* The hwaccess_lock must be held whilst accessing this.
|
*
|
* If the context relating to this as_nr is required, you must use
|
* kbasep_js_runpool_retain_ctx() to ensure that the context doesn't disappear
|
* whilst you're using it. Alternatively, just hold the hwaccess_lock
|
* to ensure the context doesn't disappear (but this has restrictions on what other locks
|
* you can take whilst doing this) */
|
int as_nr;
|
|
/* Keeps track of the number of users of this context. A user can be a
|
* job that is available for execution, instrumentation needing to 'pin'
|
* a context for counter collection, etc. If the refcount reaches 0 then
|
* this context is considered inactive and the previously programmed
|
* AS might be cleared at any point.
|
*/
|
atomic_t refcount;
|
|
/* NOTE:
|
*
|
* Flags are in jctx.sched_info.ctx.flags
|
* Mutable flags *must* be accessed under jctx.sched_info.ctx.jsctx_mutex
|
*
|
* All other flags must be added there */
|
spinlock_t mm_update_lock;
|
struct mm_struct *process_mm;
|
/* End of the SAME_VA zone */
|
u64 same_va_end;
|
|
#ifdef CONFIG_MALI_TRACE_TIMELINE
|
struct kbase_trace_kctx_timeline timeline;
|
#endif
|
#ifdef CONFIG_DEBUG_FS
|
/* Content of mem_profile file */
|
char *mem_profile_data;
|
/* Size of @c mem_profile_data */
|
size_t mem_profile_size;
|
/* Mutex guarding memory profile state */
|
struct mutex mem_profile_lock;
|
/* Memory profile directory under debugfs */
|
struct dentry *kctx_dentry;
|
|
/* for job fault debug */
|
unsigned int *reg_dump;
|
atomic_t job_fault_count;
|
/* This list will keep the following atoms during the dump
|
* in the same context
|
*/
|
struct list_head job_fault_resume_event_list;
|
|
#endif /* CONFIG_DEBUG_FS */
|
|
struct jsctx_queue jsctx_queue
|
[KBASE_JS_ATOM_SCHED_PRIO_COUNT][BASE_JM_MAX_NR_SLOTS];
|
|
/* Number of atoms currently pulled from this context */
|
atomic_t atoms_pulled;
|
/* Number of atoms currently pulled from this context, per slot */
|
atomic_t atoms_pulled_slot[BASE_JM_MAX_NR_SLOTS];
|
/* Number of atoms currently pulled from this context, per slot and
|
* priority. Hold hwaccess_lock when accessing */
|
int atoms_pulled_slot_pri[BASE_JM_MAX_NR_SLOTS][
|
KBASE_JS_ATOM_SCHED_PRIO_COUNT];
|
|
/* true if slot is blocked on the given priority. This will be set on a
|
* soft-stop */
|
bool blocked_js[BASE_JM_MAX_NR_SLOTS][KBASE_JS_ATOM_SCHED_PRIO_COUNT];
|
|
/* Bitmask of slots that can be pulled from */
|
u32 slots_pullable;
|
|
/* Backend specific data */
|
struct kbase_context_backend backend;
|
|
/* Work structure used for deferred ASID assignment */
|
struct work_struct work;
|
|
/* Only one userspace vinstr client per kbase context */
|
struct kbase_vinstr_client *vinstr_cli;
|
struct mutex vinstr_cli_lock;
|
|
/* List of completed jobs waiting for events to be posted */
|
struct list_head completed_jobs;
|
/* Number of work items currently pending on job_done_wq */
|
atomic_t work_count;
|
|
/* Waiting soft-jobs will fail when this timer expires */
|
struct timer_list soft_job_timeout;
|
|
/* JIT allocation management */
|
struct kbase_va_region *jit_alloc[256];
|
struct list_head jit_active_head;
|
struct list_head jit_pool_head;
|
struct list_head jit_destroy_head;
|
struct mutex jit_evict_lock;
|
struct work_struct jit_work;
|
|
/* A list of the JIT soft-jobs in submission order
|
* (protected by kbase_jd_context.lock)
|
*/
|
struct list_head jit_atoms_head;
|
/* A list of pending JIT alloc soft-jobs (using the 'queue' list_head)
|
* (protected by kbase_jd_context.lock)
|
*/
|
struct list_head jit_pending_alloc;
|
|
/* External sticky resource management */
|
struct list_head ext_res_meta_head;
|
|
/* Used to record that a drain was requested from atomic context */
|
atomic_t drain_pending;
|
|
/* Current age count, used to determine age for newly submitted atoms */
|
u32 age_count;
|
};
|
|
/**
|
* struct kbase_ctx_ext_res_meta - Structure which binds an external resource
|
* to a @kbase_context.
|
* @ext_res_node: List head for adding the metadata to a
|
* @kbase_context.
|
* @alloc: The physical memory allocation structure
|
* which is mapped.
|
* @gpu_addr: The GPU virtual address the resource is
|
* mapped to.
|
*
|
* External resources can be mapped into multiple contexts as well as the same
|
* context multiple times.
|
* As kbase_va_region itself isn't refcounted we can't attach our extra
|
* information to it as it could be removed under our feet leaving external
|
* resources pinned.
|
* This metadata structure binds a single external resource to a single
|
* context, ensuring that per context mapping is tracked separately so it can
|
* be overridden when needed and abuses by the application (freeing the resource
|
* multiple times) don't effect the refcount of the physical allocation.
|
*/
|
struct kbase_ctx_ext_res_meta {
|
struct list_head ext_res_node;
|
struct kbase_mem_phy_alloc *alloc;
|
u64 gpu_addr;
|
};
|
|
enum kbase_reg_access_type {
|
REG_READ,
|
REG_WRITE
|
};
|
|
enum kbase_share_attr_bits {
|
/* (1ULL << 8) bit is reserved */
|
SHARE_BOTH_BITS = (2ULL << 8), /* inner and outer shareable coherency */
|
SHARE_INNER_BITS = (3ULL << 8) /* inner shareable coherency */
|
};
|
|
/**
|
* kbase_device_is_cpu_coherent - Returns if the device is CPU coherent.
|
* @kbdev: kbase device
|
*
|
* Return: true if the device access are coherent, false if not.
|
*/
|
static inline bool kbase_device_is_cpu_coherent(struct kbase_device *kbdev)
|
{
|
if ((kbdev->system_coherency == COHERENCY_ACE_LITE) ||
|
(kbdev->system_coherency == COHERENCY_ACE))
|
return true;
|
|
return false;
|
}
|
|
/* Conversion helpers for setting up high resolution timers */
|
#define HR_TIMER_DELAY_MSEC(x) (ns_to_ktime(((u64)(x))*1000000U))
|
#define HR_TIMER_DELAY_NSEC(x) (ns_to_ktime(x))
|
|
/* Maximum number of loops polling the GPU for a cache flush before we assume it must have completed */
|
#define KBASE_CLEAN_CACHE_MAX_LOOPS 100000
|
/* Maximum number of loops polling the GPU for an AS command to complete before we assume the GPU has hung */
|
#define KBASE_AS_INACTIVE_MAX_LOOPS 100000
|
|
/* Maximum number of times a job can be replayed */
|
#define BASEP_JD_REPLAY_LIMIT 15
|
|
/* JobDescriptorHeader - taken from the architecture specifications, the layout
|
* is currently identical for all GPU archs. */
|
struct job_descriptor_header {
|
u32 exception_status;
|
u32 first_incomplete_task;
|
u64 fault_pointer;
|
u8 job_descriptor_size : 1;
|
u8 job_type : 7;
|
u8 job_barrier : 1;
|
u8 _reserved_01 : 1;
|
u8 _reserved_1 : 1;
|
u8 _reserved_02 : 1;
|
u8 _reserved_03 : 1;
|
u8 _reserved_2 : 1;
|
u8 _reserved_04 : 1;
|
u8 _reserved_05 : 1;
|
u16 job_index;
|
u16 job_dependency_index_1;
|
u16 job_dependency_index_2;
|
union {
|
u64 _64;
|
u32 _32;
|
} next_job;
|
};
|
|
#endif /* _KBASE_DEFS_H_ */
|
