/*
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*
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* (C) COPYRIGHT 2011-2015 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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* Base kernel core availability APIs
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*/
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#ifndef _KBASE_PM_CA_H_
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#define _KBASE_PM_CA_H_
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/**
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* kbase_pm_ca_init - Initialize core availability framework
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*
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* Must be called before calling any other core availability function
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*
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* @kbdev: The kbase device structure for the device (must be a valid pointer)
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*
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* Return: 0 if the core availability framework was successfully initialized,
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* -errno otherwise
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*/
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int kbase_pm_ca_init(struct kbase_device *kbdev);
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/**
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* kbase_pm_ca_term - Terminate core availability framework
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*
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* @kbdev: The kbase device structure for the device (must be a valid pointer)
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*/
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void kbase_pm_ca_term(struct kbase_device *kbdev);
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/**
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* kbase_pm_ca_get_core_mask - Get currently available shaders core mask
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*
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* @kbdev: The kbase device structure for the device (must be a valid pointer)
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*
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* Returns a mask of the currently available shader cores.
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* Calls into the core availability policy
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*
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* Return: The bit mask of available cores
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*/
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u64 kbase_pm_ca_get_core_mask(struct kbase_device *kbdev);
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/**
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* kbase_pm_ca_update_core_status - Update core status
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*
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* @kbdev: The kbase device structure for the device (must be
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* a valid pointer)
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* @cores_ready: The bit mask of cores ready for job submission
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* @cores_transitioning: The bit mask of cores that are transitioning power
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* state
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*
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* Update core availability policy with current core power status
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*
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* Calls into the core availability policy
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*/
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void kbase_pm_ca_update_core_status(struct kbase_device *kbdev, u64 cores_ready,
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u64 cores_transitioning);
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/**
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* kbase_pm_ca_instr_enable - Enable override for instrumentation
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*
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* @kbdev: The kbase device structure for the device (must be a valid pointer)
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*
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* This overrides the output of the core availability policy, ensuring that all
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* cores are available
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*/
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void kbase_pm_ca_instr_enable(struct kbase_device *kbdev);
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/**
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* kbase_pm_ca_instr_disable - Disable override for instrumentation
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*
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* @kbdev: The kbase device structure for the device (must be a valid pointer)
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*
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* This disables any previously enabled override, and resumes normal policy
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* functionality
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*/
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void kbase_pm_ca_instr_disable(struct kbase_device *kbdev);
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#endif /* _KBASE_PM_CA_H_ */
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