Re: [PATCH v9 0/4] MIPS: Support I6500 multi-cluster configuration
From: Thomas Bogendoerfer
Date: Fri Feb 21 2025 - 04:34:49 EST
On Wed, Jan 29, 2025 at 01:32:46PM +0100, Aleksandar Rikalo wrote:
> Taken from Paul Burton MIPS repo with minor changes from Chao-ying Fu.
> Tested with 64r6el_defconfig on Boston board in 2 cluster/2 VPU and
> 1 cluster/4 VPU configurations.
>
> v9:
> - The changes related to the broken HCI have been removed as they are now part of a different series:
> https://lore.kernel.org/linux-mips/20250123-cluster-hci-broken-v3-0-8a7ec57cbf68@xxxxxxxxxxx/
> - Re-base onto the master branch, with no functionality impact.
>
> v8:
> - irqchip: mips-gic: Handle case with cluster without CPU cores.
> - Add Tested-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxx> for the entire series.
> - Re-base onto the master branch, with no functionality impact.
>
> v7:
> - Add fixes for specific CM3.5 which is used in EyeQ6H SoCs,
> suggested by Gregory Clement.
> - Re-base onto the master branch, with no functionality impact.
>
> v6:
> - Re-base onto the master branch, with no functionality impact.
> - Correct the issue reported by the kernel test robot.
>
> v5:
> - Drop FDC related changes (patches 12, 13, and 14).
> - Apply changes suggested by Thomas Gleixner (patches 3 and 4).
> - Add #include <linux/cpumask.h> to patch 1, suggested by Thomas Bogendoerfer.
> - Add Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx> for the patch 08/11.
> - Add Tested-by: Serge Semin <fancer.lancer@xxxxxxxxx> for the entire series.
> - Correct some commit messages.
>
> v4:
> - Re-base onto the master branch, with no functionality impact.
> - Refactor MIPS FDC driver in the context of multicluster support.
>
> v3:
> - Add Reviewed-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> for the patch 02/12.
> - Add the changes requested by Marc Zyngier for the 3/12 patch.
> - Remove the patch 11/12 (a consequence of a discussion between Jiaxun Yang
> and Marc Zyngier.
> - Re-base onto the master branch, with no functionality impact.
>
> v2:
> - Apply correct Signed-off-by to avoid confusion.
>
> Paul Burton (4):
> clocksource: mips-gic-timer: Enable counter when CPUs start
> MIPS: pm-cps: Use per-CPU variables as per-CPU, not per-core
> MIPS: CPS: Introduce struct cluster_boot_config
> MIPS: CPS: Boot CPUs in secondary clusters
>
> arch/mips/include/asm/mips-cm.h | 18 ++
> arch/mips/include/asm/smp-cps.h | 7 +-
> arch/mips/kernel/asm-offsets.c | 3 +
> arch/mips/kernel/cps-vec.S | 19 +-
> arch/mips/kernel/mips-cm.c | 4 +-
> arch/mips/kernel/pm-cps.c | 35 ++--
> arch/mips/kernel/smp-cps.c | 285 ++++++++++++++++++++++-----
> drivers/clocksource/mips-gic-timer.c | 6 +-
> 8 files changed, 307 insertions(+), 70 deletions(-)
series applied to mips-next.
Thomas.
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