From: David Gibson <david@gibson.dropbear.id.au>
To: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, groug@kaod.org,
muriloo@linux.ibm.com
Subject: Re: [Qemu-devel] [QEMU-PPC] [PATCH V2 2/2] ppc/spapr_caps: Don't disable cap_cfpc on POWER8 by default
Date: Tue, 12 Jun 2018 21:19:28 +1000 [thread overview]
Message-ID: <20180612111928.GG30690@umbus.fritz.box> (raw)
In-Reply-To: <20180612051630.17854-2-sjitindarsingh@gmail.com>
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On Tue, Jun 12, 2018 at 03:16:30PM +1000, Suraj Jitindar Singh wrote:
> In default_caps_with_cpu() we set spapr_cap_cfpc to broken for POWER8
> processors and before.
>
> Since we no longer require private l1d cache on POWER8 for this cap to
> be set to workaround change this to default to broken for POWER7
> processors and before.
>
> Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Applied to ppc-for-3.0, thanks.
>
> ---
>
> V1 -> V2:
> - No Change
>
> ---
> hw/ppc/spapr_caps.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
> index 531e145114..00e43a9ba7 100644
> --- a/hw/ppc/spapr_caps.c
> +++ b/hw/ppc/spapr_caps.c
> @@ -335,14 +335,10 @@ static sPAPRCapabilities default_caps_with_cpu(sPAPRMachineState *spapr,
>
> caps = smc->default_caps;
>
> - if (!ppc_check_compat(cpu, CPU_POWERPC_LOGICAL_3_00,
> - 0, spapr->max_compat_pvr)) {
> - caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_BROKEN;
> - }
> -
> if (!ppc_check_compat(cpu, CPU_POWERPC_LOGICAL_2_07,
> 0, spapr->max_compat_pvr)) {
> caps.caps[SPAPR_CAP_HTM] = SPAPR_CAP_OFF;
> + caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_BROKEN;
> }
>
> if (!ppc_check_compat(cpu, CPU_POWERPC_LOGICAL_2_06_PLUS,
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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next prev parent reply other threads:[~2018-06-12 11:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-12 5:16 [Qemu-devel] [QEMU-PPC] [PATCH V2 1/2] target/ppc: Don't require private l1d cache on POWER8 for cap_ppc_safe_cache Suraj Jitindar Singh
2018-06-12 5:16 ` [Qemu-devel] [QEMU-PPC] [PATCH V2 2/2] ppc/spapr_caps: Don't disable cap_cfpc on POWER8 by default Suraj Jitindar Singh
2018-06-12 11:19 ` David Gibson [this message]
2018-06-12 11:19 ` [Qemu-devel] [QEMU-PPC] [PATCH V2 1/2] target/ppc: Don't require private l1d cache on POWER8 for cap_ppc_safe_cache David Gibson
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