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b12a2b493e
This patch introduces an additional layer of abstraction between CSS power management hooks and the SCPI driver. A new set of APIs are introduced in order to abstract out power management operations from underlying communication mechanism with the SCP. The SCPI and the associated MHU drivers are moved into a `drivers` folder in CSS. The new SCP communication abstraction layer is added in the `drivers/scp` folder. The existing CSS power management uses the new APIs to reflect this abstraction. Change-Id: I7d775129fc0558e9703c2724523fb8f0a916838c Signed-off-by: Soby Mathew <soby.mathew@arm.com>
56 lines
2.5 KiB
C
56 lines
2.5 KiB
C
/*
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* Copyright (c) 2015-2016, 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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/* Macros to read the CSS power domain state */
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#define CSS_CORE_PWR_STATE(state) (state)->pwr_domain_state[ARM_PWR_LVL0]
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#define CSS_CLUSTER_PWR_STATE(state) (state)->pwr_domain_state[ARM_PWR_LVL1]
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#define CSS_SYSTEM_PWR_STATE(state) ((PLAT_MAX_PWR_LVL > ARM_PWR_LVL1) ?\
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(state)->pwr_domain_state[ARM_PWR_LVL2] : 0)
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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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void css_get_sys_suspend_power_state(psci_power_state_t *req_state);
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int css_node_hw_state(u_register_t mpidr, unsigned int power_level);
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#endif /* __CSS_PM_H__ */
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