2013-10-25 09:08:21 +01:00
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/*
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2016-02-01 14:04:34 +00:00
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* Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
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2013-10-25 09:08:21 +01:00
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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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2015-03-19 19:17:53 +00:00
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#include <arch.h>
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2016-02-01 14:04:34 +00:00
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#include <cassert.h>
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2015-07-01 16:16:20 +01:00
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#include <plat_arm.h>
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2014-05-14 17:44:19 +01:00
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#include <platform_def.h>
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2014-04-11 11:52:12 +01:00
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#include "drivers/pwrc/fvp_pwrc.h"
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2013-10-25 09:08:21 +01:00
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2015-07-01 16:16:20 +01:00
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/* The FVP power domain tree descriptor */
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2016-02-01 14:04:34 +00:00
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unsigned char fvp_power_domain_tree_desc[FVP_CLUSTER_COUNT + 1];
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CASSERT(FVP_CLUSTER_COUNT && FVP_CLUSTER_COUNT <= 256, assert_invalid_fvp_cluster_count);
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/*******************************************************************************
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* This function dynamically constructs the topology according to
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* FVP_CLUSTER_COUNT and returns it.
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******************************************************************************/
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const unsigned char *plat_get_power_domain_tree_desc(void)
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{
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int i;
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/*
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* The FVP power domain tree does not have a single system level power domain
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* i.e. a single root node. The first entry in the power domain descriptor
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* specifies the number of power domains at the highest power level. For the FVP
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* this is the number of cluster power domains.
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*/
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fvp_power_domain_tree_desc[0] = FVP_CLUSTER_COUNT;
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for (i = 0; i < FVP_CLUSTER_COUNT; i++)
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fvp_power_domain_tree_desc[i + 1] = FVP_MAX_CPUS_PER_CLUSTER;
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return fvp_power_domain_tree_desc;
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}
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/*******************************************************************************
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* This function returns the core count within the cluster corresponding to
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* `mpidr`.
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******************************************************************************/
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unsigned int plat_arm_get_cluster_core_count(u_register_t mpidr)
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{
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return FVP_MAX_CPUS_PER_CLUSTER;
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}
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2013-10-25 09:08:21 +01:00
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/*******************************************************************************
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* This function implements a part of the critical interface between the psci
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2015-07-01 16:16:20 +01:00
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* generic layer and the platform that allows the former to query the platform
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* to convert an MPIDR to a unique linear index. An error code (-1) is returned
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* in case the MPIDR is invalid.
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2013-10-25 09:08:21 +01:00
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******************************************************************************/
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2015-07-01 16:16:20 +01:00
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int plat_core_pos_by_mpidr(u_register_t mpidr)
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2013-10-25 09:08:21 +01:00
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{
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2015-07-01 16:16:20 +01:00
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if (arm_check_mpidr(mpidr) == -1)
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return -1;
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2013-10-25 09:08:21 +01:00
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2015-07-01 16:16:20 +01:00
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if (fvp_pwrc_read_psysr(mpidr) == PSYSR_INVALID)
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return -1;
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2013-10-25 09:08:21 +01:00
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2015-07-01 16:16:20 +01:00
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return plat_arm_calc_core_pos(mpidr);
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2013-10-25 09:08:21 +01:00
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}
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