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785fb92b8a
This patch does the following reorganization to psci power management (PM) handler setup for ARM standard platform ports : 1. The mailbox programming required during `plat_setup_psci_ops()` is identical for all ARM platforms. Hence the implementation of this API is now moved to the common `arm_pm.c` file. Each ARM platform now must define the PLAT_ARM_TRUSTED_MAILBOX_BASE macro, which in current platforms is the same as ARM_SHARED_RAM_BASE. 2. The PSCI PM handler callback structure, `plat_psci_ops`, must now be exported via `plat_arm_psci_pm_ops`. This allows the common implementation of `plat_setup_psci_ops()` to return a platform specific `plat_psci_ops`. In the case of CSS platforms, a default weak implementation of the same is provided in `css_pm.c` which can be overridden by each CSS platform. 3. For CSS platforms, the PSCI PM handlers defined in `css_pm.c` are now made library functions and a new header file `css_pm.h` is added to export these generic PM handlers. This allows the platform to reuse the adequate CSS PM handlers and redefine others which need to be customized when overriding the default `plat_arm_psci_pm_ops` in `css_pm.c`. Change-Id: I277910f609e023ee5d5ff0129a80ecfce4356ede
49 lines
2.1 KiB
C
49 lines
2.1 KiB
C
/*
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* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __CSS_PM_H__
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#define __CSS_PM_H__
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#include <cdefs.h>
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#include <psci.h>
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#include <types.h>
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int css_pwr_domain_on(u_register_t mpidr);
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void css_pwr_domain_on_finish(const psci_power_state_t *target_state);
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void css_pwr_domain_off(const psci_power_state_t *target_state);
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void css_pwr_domain_suspend(const psci_power_state_t *target_state);
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void css_pwr_domain_suspend_finish(
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const psci_power_state_t *target_state);
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void __dead2 css_system_off(void);
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void __dead2 css_system_reset(void);
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void css_cpu_standby(plat_local_state_t cpu_state);
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#endif /* __CSS_PM_H__ */
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