From: hch@infradead.org (Christoph Hellwig)
To: linux-riscv@lists.infradead.org
Subject: [PATCH v3 10/12] RISC-V: Add logical CPU indexing for RISC-V
Date: Mon, 10 Sep 2018 04:27:59 -0700 [thread overview]
Message-ID: <20180910112759.GI12979@infradead.org> (raw)
In-Reply-To: <1536221135-182613-11-git-send-email-atish.patra@wdc.com>
On Thu, Sep 06, 2018 at 01:05:33AM -0700, Atish Patra wrote:
> Currently, both linux cpu id and hardware cpu id are same.
> This is not recommended as it will lead to discontinuous cpu
> indexing in Linux. Moreover, kdump kernel will run from CPU0
> which would be absent if we follow existing scheme.
>
> Implement a logical mapping between Linux cpu id and hardware
> cpuid to decouple these two. Always mark the boot processor as
> cpu0 and all other cpus get the logical cpu id based on their
> booting order.
>
> Signed-off-by: Atish Patra <atish.patra@wdc.com>
> Reviewed-by : Anup Patel <anup@brainfault.org>
drop the two spaces before the ":", please.
Otherwise looks good:
Reviewed-by: Christoph Hellwig <hch@lst.de>
next prev parent reply other threads:[~2018-09-10 11:27 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-06 8:05 [PATCH v3 00/12] SMP cleanup and new features Atish Patra
2018-09-06 8:05 ` [PATCH v3 01/12] RISC-V: Don't set cacheinfo.{physical_line_partition, attributes} Atish Patra
2018-09-06 8:05 ` [PATCH v3 02/12] RISC-V: Filter ISA and MMU values in cpuinfo Atish Patra
2018-09-10 11:24 ` Christoph Hellwig
2018-09-11 1:35 ` Atish Patra
2018-09-06 8:05 ` [PATCH v3 03/12] RISC-V: Comment on the TLB flush in smp_callin() Atish Patra
2018-09-10 11:24 ` Christoph Hellwig
2018-09-06 8:05 ` [PATCH v3 04/12] RISC-V: Disable preemption before enabling interrupts Atish Patra
2018-09-10 11:24 ` Christoph Hellwig
2018-09-06 8:05 ` [PATCH v3 05/12] RISC-V: Provide a cleaner raw_smp_processor_id() Atish Patra
2018-09-10 11:25 ` Christoph Hellwig
2018-09-06 8:05 ` [PATCH v3 06/12] RISC-V: Rename riscv_of_processor_hart to riscv_of_processor_hartid Atish Patra
2018-09-10 11:25 ` Christoph Hellwig
2018-09-11 1:36 ` Atish Patra
2018-09-11 6:17 ` Christoph Hellwig
2018-09-06 8:05 ` [PATCH v3 07/12] RISC-V: Rename im_okay_therefore_i_am to found_boot_cpu Atish Patra
2018-09-10 11:26 ` Christoph Hellwig
2018-09-06 8:05 ` [PATCH v3 08/12] RISC-V: Use mmgrab() Atish Patra
2018-09-06 8:05 ` [PATCH v3 09/12] RISC-V: User WRITE_ONCE instead of direct access Atish Patra
2018-09-10 11:27 ` Christoph Hellwig
2018-09-06 8:05 ` [PATCH v3 10/12] RISC-V: Add logical CPU indexing for RISC-V Atish Patra
2018-09-10 11:27 ` Christoph Hellwig [this message]
2018-09-06 8:05 ` [PATCH v3 11/12] RISC-V: Use Linux logical cpu number instead of hartid Atish Patra
2018-09-10 11:29 ` Christoph Hellwig
2018-09-11 1:35 ` Atish Patra
2018-09-06 8:05 ` [PATCH v3 12/12] RISC-V: Support cpu hotplug Atish Patra
2018-09-06 10:20 ` Mark Rutland
2018-09-06 18:25 ` Atish Patra
2018-09-11 18:36 ` Atish Patra
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