mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 15:02:32 +00:00
4a81b00a05
Rename and reorganize backported patches. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
61 lines
1.8 KiB
Diff
61 lines
1.8 KiB
Diff
From c0f41a0dac1f3db6c40aabc0f3ac8868709ba6a6 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
|
|
Date: Wed, 24 Feb 2021 08:33:36 +0100
|
|
Subject: [PATCH] mips: smp-bmips: fix CPU mappings
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
When booting bmips with SMP enabled on a BCM6358 running on CPU #1 instead of
|
|
CPU #0, the current CPU mapping code produces the following:
|
|
- smp_processor_id(): 0
|
|
- cpu_logical_map(0): 1
|
|
- cpu_number_map(0): 1
|
|
|
|
This is because SMP isn't supported on BCM6358 since it has a shared TLB, so
|
|
it is disabled and max_cpus is decreased from 2 to 1.
|
|
|
|
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
|
|
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
|
|
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
|
|
---
|
|
arch/mips/kernel/smp-bmips.c | 27 +++++++++++++++++----------
|
|
1 file changed, 17 insertions(+), 10 deletions(-)
|
|
|
|
--- a/arch/mips/kernel/smp-bmips.c
|
|
+++ b/arch/mips/kernel/smp-bmips.c
|
|
@@ -134,17 +134,24 @@ static void __init bmips_smp_setup(void)
|
|
if (!board_ebase_setup)
|
|
board_ebase_setup = &bmips_ebase_setup;
|
|
|
|
- __cpu_number_map[boot_cpu] = 0;
|
|
- __cpu_logical_map[0] = boot_cpu;
|
|
+ if (max_cpus > 1) {
|
|
+ __cpu_number_map[boot_cpu] = 0;
|
|
+ __cpu_logical_map[0] = boot_cpu;
|
|
|
|
- for (i = 0; i < max_cpus; i++) {
|
|
- if (i != boot_cpu) {
|
|
- __cpu_number_map[i] = cpu;
|
|
- __cpu_logical_map[cpu] = i;
|
|
- cpu++;
|
|
+ for (i = 0; i < max_cpus; i++) {
|
|
+ if (i != boot_cpu) {
|
|
+ __cpu_number_map[i] = cpu;
|
|
+ __cpu_logical_map[cpu] = i;
|
|
+ cpu++;
|
|
+ }
|
|
+ set_cpu_possible(i, 1);
|
|
+ set_cpu_present(i, 1);
|
|
}
|
|
- set_cpu_possible(i, 1);
|
|
- set_cpu_present(i, 1);
|
|
+ } else {
|
|
+ __cpu_number_map[0] = boot_cpu;
|
|
+ __cpu_logical_map[0] = 0;
|
|
+ set_cpu_possible(0, 1);
|
|
+ set_cpu_present(0, 1);
|
|
}
|
|
}
|
|
|