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Diffstat (limited to 'plat/gxb/plat_topology.c')
-rw-r--r-- | plat/gxb/plat_topology.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/plat/gxb/plat_topology.c b/plat/gxb/plat_topology.c new file mode 100644 index 0000000..b4b3711 --- /dev/null +++ b/plat/gxb/plat_topology.c @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * Neither the name of ARM nor the names of its contributors may be used + * to endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <platform_def.h> +#include <psci.h> + +unsigned int plat_get_aff_count(unsigned int aff_lvl, unsigned long mpidr) +{ + /* Report 1 (absent) instance at levels higher that the cluster level */ + if (aff_lvl > MPIDR_AFFLVL1) + return 1; + + if (aff_lvl == MPIDR_AFFLVL1) + return 2; /* We have two clusters */ + + return mpidr & 0x100 ? 4 : 2; /* 4 cpus in cluster 1, 2 in cluster 0 */ +} + +unsigned int plat_get_aff_state(unsigned int aff_lvl, unsigned long mpidr) +{ + return aff_lvl <= MPIDR_AFFLVL1 ? PSCI_AFF_PRESENT : PSCI_AFF_ABSENT; +} + +int plat_get_max_afflvl() +{ + return MPIDR_AFFLVL1; +} + +int plat_setup_topology() +{ + /* ${PLAT} todo: Make topology configurable via SCC */ + return 0; +} |