1 /* 2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <arch.h> 32 #include <psci.h> 33 #include <platform_def.h> 34 35 /* 36 * Weak definitions use fixed topology. Strong definitions could make topology 37 * configurable 38 */ 39 #pragma weak plat_get_aff_count 40 #pragma weak plat_get_aff_state 41 #pragma weak plat_arm_topology_setup 42 43 44 unsigned int plat_get_aff_count(unsigned int aff_lvl, unsigned long mpidr) 45 { 46 /* Report 1 (absent) instance at levels higher that the cluster level */ 47 if (aff_lvl > MPIDR_AFFLVL1) 48 return 1; 49 50 if (aff_lvl == MPIDR_AFFLVL1) 51 return ARM_CLUSTER_COUNT; 52 53 return mpidr & 0x100 ? PLAT_ARM_CLUSTER1_CORE_COUNT : 54 PLAT_ARM_CLUSTER0_CORE_COUNT; 55 } 56 57 unsigned int plat_get_aff_state(unsigned int aff_lvl, unsigned long mpidr) 58 { 59 return aff_lvl <= MPIDR_AFFLVL1 ? PSCI_AFF_PRESENT : PSCI_AFF_ABSENT; 60 } 61 62 void plat_arm_topology_setup(void) 63 { 64 } 65