From: Jonas Bonn <jonas@southpole.se>
To: Stafford Horne <shorne@gmail.com>,
Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 6/7] openrisc: add SMP and NR_CPUS Kconfig options
Date: Mon, 19 Sep 2016 16:31:14 +0200 [thread overview]
Message-ID: <57DFF6B2.4020605@southpole.se> (raw)
In-Reply-To: <1474036985-20981-7-git-send-email-shorne@gmail.com>
On 09/16/2016 04:43 PM, Stafford Horne wrote:
> From: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
OpenRISC was not an SMP architecture last I looked... did the relevant
spec updates get made? If not, NAK.
The issue is, the OpenRISC architecture shouldn't be a moving target
defined by what the kernel supports... there's a spec that the kernel
conforms to. This is important for the (few) real users of the
architecture.
/Jonas
> Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
> Signed-off-by: Stafford Horne <shorne@gmail.com>
> ---
> arch/openrisc/Kconfig | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
> index 489e7f9..2bcf8c3 100644
> --- a/arch/openrisc/Kconfig
> +++ b/arch/openrisc/Kconfig
> @@ -98,6 +98,20 @@ config OPENRISC_HAVE_INST_DIV
> Select this if your implementation has a hardware divide instruction
> endmenu
>
> +config NR_CPUS
> + int "Maximum number of CPUs (2-32)"
> + range 2 32
> + depends on SMP
> + default "2"
> +
> +config SMP
> + bool "Symmetric Multi-Processing support"
> + help
> + This enables support for systems with more than one CPU. If you have
> + a system with only one CPU, say N. If you have a system with more
> + than one CPU, say Y.
> +
> + If you don't know what to do here, say N.
>
> source kernel/Kconfig.hz
> source kernel/Kconfig.preempt
next prev parent reply other threads:[~2016-09-19 14:31 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-16 14:42 [PATCH 0/7] openrisc: Misc fixes from backlog Stafford Horne
2016-09-16 14:42 ` [PATCH 1/7] Apply transparent_union attribute to union semun Stafford Horne
2016-09-16 15:57 ` kbuild test robot
2016-09-16 23:37 ` kbuild test robot
2016-09-17 0:06 ` Stafford Horne
2016-09-19 14:26 ` Jonas Bonn
2016-09-19 14:47 ` Stafford Horne
2016-09-16 14:43 ` [PATCH 2/7] openrisc: fix PTRS_PER_PGD define Stafford Horne
2016-09-19 14:27 ` Jonas Bonn
2016-09-16 14:43 ` [PATCH 3/7] openrisc: restore call-saved regs on sigreturn Stafford Horne
2016-09-19 14:28 ` Jonas Bonn
2016-09-19 14:50 ` Stafford Horne
2016-09-27 13:54 ` Stafford Horne
2016-09-16 14:43 ` [PATCH 4/7] openrisc: Add thread-local storage (TLS) support Stafford Horne
2016-09-19 14:25 ` Jonas Bonn
2016-09-19 14:43 ` Stafford Horne
2016-09-16 14:43 ` [PATCH 5/7] openrisc: Support both old (or32) and new (or1k) toolchain Stafford Horne
2016-09-18 15:26 ` Guenter Roeck
2016-09-19 6:02 ` Stafford Horne
2016-09-19 7:18 ` Guenter Roeck
2016-09-19 9:11 ` Stafford Horne
2016-09-19 13:17 ` Guenter Roeck
2016-09-19 14:04 ` Stafford Horne
2016-09-19 14:35 ` Jonas Bonn
2016-09-19 14:55 ` Guenter Roeck
2016-09-19 15:16 ` Stafford Horne
2016-09-19 14:39 ` Guenter Roeck
2016-09-20 10:01 ` Stafford Horne
2016-09-16 14:43 ` [PATCH 6/7] openrisc: add SMP and NR_CPUS Kconfig options Stafford Horne
2016-09-19 14:31 ` Jonas Bonn [this message]
2016-09-19 14:54 ` Stafford Horne
2016-09-16 14:43 ` [PATCH 7/7] openrisc: remove the redundant of_platform_populate Stafford Horne
2016-09-19 14:32 ` Jonas Bonn
2016-09-19 14:58 ` Stafford Horne
2016-09-19 16:14 ` Rob Herring
2016-09-16 14:51 ` [PATCH 0/7] openrisc: Misc fixes from backlog Stafford Horne
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