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linux/arch/mips/loongson64
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James Hogan 826e99be6a MIPS: SMP: Update cpu_foreign_map on CPU disable 
When a CPU is disabled via CPU hotplug, cpu_foreign_map is not updated.
This could result in cache management SMP calls being sent to offline
CPUs instead of online siblings in the same core.

Add a call to calculate_cpu_foreign_map() in the various MIPS cpu
disable callbacks after set_cpu_online(). All cases are updated for
consistency and to keep cpu_foreign_map strictly up to date, not just
those which may support hardware multithreading.

Fixes: cccf34e941 ("MIPS: c-r4k: Fix cache flushing for MT cores")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Hongliang Tao <taohl@lemote.com>
Cc: Hua Yan <yanh@lemote.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13799/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-07-29 10:19:28 +02:00
..
common MIPS: Loongson: Add Loongson-3A R2 basic support 2016-05-13 14:02:14 +02:00
fuloong-2e MIPS, CPUFREQ: Fix spelling of Institute. 2015-07-07 20:59:42 +02:00
lemote-2f MIPS: Loongson: Cleanup CONFIG_LOONGSON_SUSPEND. 2015-11-11 08:38:28 +01:00
loongson-3 MIPS: SMP: Update cpu_foreign_map on CPU disable 2016-07-29 10:19:28 +02:00
Kconfig MIPS: Loongson: Cleanup CONFIG_LOONGSON_SUSPEND. 2015-11-11 08:38:28 +01:00
Makefile
Platform MIPS: Loongson-3: Fix build error after ld-version.sh modification 2016-05-09 12:00:03 +02:00