linux-kernel - Re: [v2, 01/10] powerpc/6xx: fix setup and use of SPRN_SPRG

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Date:   Thu, 21 Mar 2019 00:04:30 +1100 (AEDT)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Christophe Leroy <christophe.leroy@....fr>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>, ruscur@...sell.cc
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [v2, 01/10] powerpc/6xx: fix setup and use of SPRN_SPRG_PGDIR for hash32

On Mon, 2019-03-11 at 08:30:27 UTC, Christophe Leroy wrote:
> Not only the 603 but all 6xx need SPRN_SPRG_PGDIR to be initialised at
> startup. This patch move it from __setup_cpu_603() to start_here()
> and __secondary_start(), close to the initialisation of SPRN_THREAD.
> 
> Previously, virt addr of PGDIR was retrieved from thread struct.
> Now that it is the phys addr which is stored in SPRN_SPRG_PGDIR,
> hash_page() shall not convert it to phys anymore.
> This patch removes the conversion.
> 
> Fixes: 93c4a162b014("powerpc/6xx: Store PGDIR physical address in a SPRG")
> Reported-by: Guenter Roeck <linux@...ck-us.net>
> Tested-by: Guenter Roeck <linux@...ck-us.net>
> Signed-off-by: Christophe Leroy <christophe.leroy@....fr>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/4622a2d43101ea2e3d54a2af090f25a5

cheers