1 /*
2 * Copyright (c) 2014-2015, Linaro Ltd and Contributors. All rights reserved.
3 * Copyright (c) 2014-2015, Hisilicon Ltd and Contributors. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * Neither the name of ARM nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific
17 * prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <platform_def.h>
33 #include <psci.h>
34
plat_get_aff_count(unsigned int aff_lvl,unsigned long mpidr)35 unsigned int plat_get_aff_count(unsigned int aff_lvl, unsigned long mpidr)
36 {
37 /* Report 1 (absent) instance at levels higher that the cluster level */
38 if (aff_lvl > MPIDR_AFFLVL1)
39 return 1;
40
41 if (aff_lvl == MPIDR_AFFLVL1)
42 return 2; /* We have two clusters */
43
44 return 4; /* 4 cpus in cluster 1 or cluster 0 */
45 }
46
plat_get_aff_state(unsigned int aff_lvl,unsigned long mpidr)47 unsigned int plat_get_aff_state(unsigned int aff_lvl, unsigned long mpidr)
48 {
49 return aff_lvl <= MPIDR_AFFLVL1 ? PSCI_AFF_PRESENT : PSCI_AFF_ABSENT;
50 }
51
plat_get_max_afflvl()52 int plat_get_max_afflvl()
53 {
54 return MPIDR_AFFLVL1;
55 }
56
plat_setup_topology()57 int plat_setup_topology()
58 {
59 /* Juno todo: Make topology configurable via SCC */
60 return 0;
61 }
62