linux_dsm_epyc7002/arch/arm/mach-zynq
Quanyang Wang 6c6b3f1f26 ARM: zynq: use physical cpuid in zynq_slcr_cpu_stop/start
When kernel booting, it will create a cpuid map between the logical cpus
and physical cpus. In a normal boot, the cpuid map is as below:

    Physical      Logical
        0    ==>     0
        1    ==>     1

But in kdump, there is a condition that the crash happens at the
physical cpu1, and the crash kernel will run at the physical cpu1 too,
so the cpuid map in crash kernel is as below:

    Physical      Logical
        1    ==>     0
        0    ==>     1

The functions zynq_slcr_cpu_stop/start is to stop/start the physical
cpus, the parameter cpu should be the physical cpuid. So use
cpu_logical_map to translate the logical cpuid to physical cpuid.
Or else the logical cpu0(physical cpu1) will stop itself and
the processor will hang.

Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-01-08 15:21:09 +01:00
..
common.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
common.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
headsmp.S ARM: zynq: Support smp in thumb mode 2019-08-14 09:40:35 +02:00
Kconfig
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
platsmp.c ARM: zynq: use physical cpuid in zynq_slcr_cpu_stop/start 2020-01-08 15:21:09 +01:00
pm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
slcr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 151 2019-05-30 11:26:28 -07:00