linux-kernel - Re: [PATCH v4 02/14] MIPS: GIC: Generate redirect block accessors

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Message-ID: <Zoz59EqgUZ+1GiHd@alpha.franken.de>
Date: Tue, 9 Jul 2024 10:51:00 +0200
From: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To: Aleksandar Rikalo <aleksandar.rikalo@...mia.com>
Cc: Aleksandar Rikalo <arikalo@...il.com>, Chao-ying Fu <cfu@...ecomp.com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Greg Ungerer <gerg@...nel.org>, Hauke Mehrtens <hauke@...ke-m.de>,
	Ilya Lipnitskiy <ilya.lipnitskiy@...il.com>,
	Jiaxun Yang <jiaxun.yang@...goat.com>, linux-kernel@...r.kernel.org,
	linux-mips@...r.kernel.org, Marc Zyngier <maz@...nel.org>,
	Paul Burton <paulburton@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Serge Semin <fancer.lancer@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Tiezhu Yang <yangtiezhu@...ngson.cn>
Subject: Re: [PATCH v4 02/14] MIPS: GIC: Generate redirect block accessors

On Sat, May 11, 2024 at 12:43:29PM +0200, Aleksandar Rikalo wrote:
> From: Paul Burton <paulburton@...nel.org>
> 
> With CM 3.5 the "core-other" register block evolves into the "redirect"
> register block, which is capable of accessing not only the core local
> registers of other cores but also the shared/global registers of other
> clusters.
> 
> This patch generates accessor functions for shared/global registers
> accessed via the redirect block, with "redir_" inserted after "gic_" in
> their names. For example the accessor function:
> 
>   read_gic_config()
> 
> ...accesses the GIC_CONFIG register of the GIC in the local cluster.
> With this patch a new function:
> 
>   read_gic_redir_config()
> 
> ...is added which accesses the GIC_CONFIG register of the GIC in
> whichever cluster the GCR_CL_REDIRECT register is configured to access.
> 
> This mirrors the similar redirect block accessors already provided for
> the CM & CPC.
> 
> Reviewed-by: Jiaxun Yang <jiaxun.yang@...goat.com>
> Signed-off-by: Paul Burton <paulburton@...nel.org>
> Signed-off-by: Chao-ying Fu <cfu@...ecomp.com>
> Signed-off-by: Dragan Mladjenovic <dragan.mladjenovic@...mia.com>
> Signed-off-by: Aleksandar Rikalo <aleksandar.rikalo@...mia.com>
> ---
>  arch/mips/include/asm/mips-gic.h | 50 ++++++++++++++++++++++----------
>  1 file changed, 34 insertions(+), 16 deletions(-)

applied to mips-next.

Thomas.

-- 
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