1 /*
2 * Copyright (c) 2014, 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 <platform_def.h>
32 #include <psci.h>
33
plat_get_aff_count(unsigned int aff_lvl,unsigned long mpidr)34 unsigned int plat_get_aff_count(unsigned int aff_lvl, unsigned long mpidr)
35 {
36 /* Report 1 (absent) instance at levels higher that the cluster level */
37 if (aff_lvl > MPIDR_AFFLVL1)
38 return 1;
39
40 if (aff_lvl == MPIDR_AFFLVL1)
41 return 2; /* We have two clusters */
42
43 return mpidr & 0x100 ? 4 : 2; /* 4 cpus in cluster 1, 2 in cluster 0 */
44 }
45
plat_get_aff_state(unsigned int aff_lvl,unsigned long mpidr)46 unsigned int plat_get_aff_state(unsigned int aff_lvl, unsigned long mpidr)
47 {
48 return aff_lvl <= MPIDR_AFFLVL1 ? PSCI_AFF_PRESENT : PSCI_AFF_ABSENT;
49 }
50
plat_get_max_afflvl()51 int plat_get_max_afflvl()
52 {
53 return MPIDR_AFFLVL1;
54 }
55
plat_setup_topology()56 int plat_setup_topology()
57 {
58 /* Juno todo: Make topology configurable via SCC */
59 return 0;
60 }
61