Re: [PATCH RFC 21/22] riscv: Switch over to GENERIC_CPU_DEVICES

From: Gavin Shan
Date: Sun Nov 12 2023 - 23:24:44 EST


On 11/7/23 20:31, Russell King (Oracle) wrote:
From: James Morse <james.morse@xxxxxxx>

Now that GENERIC_CPU_DEVICES calls arch_register_cpu(), which can be
overridden by the arch code, switch over to this to allow common code
to choose when the register_cpu() call is made.

This allows topology_init() to be removed.

This is an intermediate step to the logic being moved to drivers/acpi,
where GENERIC_CPU_DEVICES will do the work when booting with acpi=off.

This patch also has the effect of moving the registration of CPUs from
subsys to driver core initialisation, prior to any initcalls running.

Signed-off-by: James Morse <james.morse@xxxxxxx>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
---
Changes since RFC v2:
* Add note about initialisation order change.
---
arch/riscv/Kconfig | 1 +
arch/riscv/kernel/setup.c | 19 ++++---------------
2 files changed, 5 insertions(+), 15 deletions(-)


Reviewed-by: Gavin Shan <gshan@xxxxxxxxxx>