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/*
*
* (C) COPYRIGHT 2011-2015 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained
* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
/*
* Base kernel core availability APIs
*/
#ifndef _KBASE_PM_CA_H_
#define _KBASE_PM_CA_H_
/**
* kbase_pm_ca_init - Initialize core availability framework
*
* Must be called before calling any other core availability function
*
* @kbdev: The kbase device structure for the device (must be a valid pointer)
*
* Return: 0 if the core availability framework was successfully initialized,
* -errno otherwise
*/
int kbase_pm_ca_init(struct kbase_device *kbdev);
/**
* kbase_pm_ca_term - Terminate core availability framework
*
* @kbdev: The kbase device structure for the device (must be a valid pointer)
*/
void kbase_pm_ca_term(struct kbase_device *kbdev);
/**
* kbase_pm_ca_get_core_mask - Get currently available shaders core mask
*
* @kbdev: The kbase device structure for the device (must be a valid pointer)
*
* Returns a mask of the currently available shader cores.
* Calls into the core availability policy
*
* Return: The bit mask of available cores
*/
u64 kbase_pm_ca_get_core_mask(struct kbase_device *kbdev);
/**
* kbase_pm_ca_update_core_status - Update core status
*
* @kbdev: The kbase device structure for the device (must be
* a valid pointer)
* @cores_ready: The bit mask of cores ready for job submission
* @cores_transitioning: The bit mask of cores that are transitioning power
* state
*
* Update core availability policy with current core power status
*
* Calls into the core availability policy
*/
void kbase_pm_ca_update_core_status(struct kbase_device *kbdev, u64 cores_ready,
u64 cores_transitioning);
/**
* kbase_pm_ca_instr_enable - Enable override for instrumentation
*
* @kbdev: The kbase device structure for the device (must be a valid pointer)
*
* This overrides the output of the core availability policy, ensuring that all
* cores are available
*/
void kbase_pm_ca_instr_enable(struct kbase_device *kbdev);
/**
* kbase_pm_ca_instr_disable - Disable override for instrumentation
*
* @kbdev: The kbase device structure for the device (must be a valid pointer)
*
* This disables any previously enabled override, and resumes normal policy
* functionality
*/
void kbase_pm_ca_instr_disable(struct kbase_device *kbdev);
#endif /* _KBASE_PM_CA_H_ */
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