From: Nicholas Piggin <npiggin@gmail.com>
To: Allison Randal <allison@lohutok.net>,
Thiago Jung Bauermann <bauerman@linux.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Daniel Axtens <dja@axtens.net>,
"Gautham R. Shenoy" <ego@linux.vnet.ibm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Anshuman Khandual <khandual@linux.vnet.ibm.com>,
Leonardo Bras <leobras.c@gmail.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nadav Amit <namit@vmware.com>,
Nathan Lynch <nathanl@linux.ibm.com>,
Paul Mackerras <paulus@samba.org>,
Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v5 2/2] powerpc/rtas: Implement reentrant rtas call
Date: Mon, 18 May 2020 08:52:04 +1000 [thread overview]
Message-ID: <1589755794.kmbg5am170.astroid@bobo.none> (raw)
In-Reply-To: <1589614523.yfijifo1n6.astroid@bobo.none>
Excerpts from Nicholas Piggin's message of May 16, 2020 5:36 pm:
> Excerpts from Leonardo Bras's message of May 16, 2020 3:21 pm:
>> @@ -202,6 +220,7 @@ void __init __nostackprotector initialise_paca(struct paca_struct *new_paca, int
>> /* For now -- if we have threads this will be adjusted later */
>> new_paca->tcd_ptr = &new_paca->tcd;
>> #endif
>> + new_paca->reentrant_args = NULL;
>> }
>>
>> /* Put the paca pointer into r13 and SPRG_PACA */
>> @@ -274,6 +293,7 @@ void __init allocate_paca(int cpu)
>> #ifdef CONFIG_PPC_BOOK3S_64
>> paca->slb_shadow_ptr = new_slb_shadow(cpu, limit);
>> #endif
>> + paca->reentrant_args = new_rtas_args(cpu, limit);
>
> Good, I think tihs should work as you want now. Can you allocate it like
> lppacas? Put it under PSERIES (and in the paca) and check for !HV?
Oh and while there, could you prefix the name with rtas_?
Thanks,
Nick
next prev parent reply other threads:[~2020-05-17 22:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-16 5:21 [PATCH v5 0/2] Implement reentrant rtas call Leonardo Bras
2020-05-16 5:21 ` [PATCH v5 1/2] powerpc/rtas: Move type/struct definitions from rtas.h into rtas-types.h Leonardo Bras
2020-05-16 5:21 ` [PATCH v5 2/2] powerpc/rtas: Implement reentrant rtas call Leonardo Bras
2020-05-16 7:36 ` Nicholas Piggin
2020-05-17 22:52 ` Nicholas Piggin [this message]
2020-05-18 23:40 ` Leonardo Bras
2020-05-16 12:15 ` kbuild test robot
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