From: David Gibson <david@gibson.dropbear.id.au>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 01/13] target/ppc: Add do_unaligned_access hook
Date: Thu, 28 Jun 2018 13:46:05 +1000 [thread overview]
Message-ID: <20180628034605.GA23134@umbus.fritz.box> (raw)
In-Reply-To: <75d315ee-dd6e-e68d-68c1-ed30508dabab@linaro.org>
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On Wed, Jun 27, 2018 at 06:52:49AM -0700, Richard Henderson wrote:
> On 06/27/2018 02:09 AM, David Gibson wrote:
> > On Tue, Jun 26, 2018 at 09:19:09AM -0700, Richard Henderson wrote:
> >> This allows faults from MO_ALIGN to have the same effect
> >> as from gen_check_align.
> >>
> >> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> >
> > So, most powerpc cpus can handle most unaligned accesses without an
> > exception. I'm assuming this series won't preclude that?
>
> Correct. This hook will only fire when using MO_ALIGN to
> request an alignment check.
Thanks for the confirmation, first patch applied to ppc-for-3.0.
Continuing to look at the rest.
--
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:[~2018-06-28 3:54 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-26 16:19 [Qemu-devel] [PATCH 00/13] target/ppc improve atomic operations Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 01/13] target/ppc: Add do_unaligned_access hook Richard Henderson
2018-06-27 9:09 ` David Gibson
2018-06-27 13:52 ` Richard Henderson
2018-06-28 3:46 ` David Gibson [this message]
2018-06-26 16:19 ` [Qemu-devel] [PATCH 02/13] target/ppc: Use atomic load for LQ and LQARX Richard Henderson
2018-06-28 3:49 ` David Gibson
2018-06-28 15:22 ` Richard Henderson
2018-06-29 3:33 ` David Gibson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 03/13] target/ppc: Use atomic store for STQ Richard Henderson
2018-06-28 3:51 ` David Gibson
2018-06-29 3:33 ` David Gibson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 04/13] target/ppc: Use atomic cmpxchg for STQCX Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 05/13] target/ppc: Remove POWERPC_EXCP_STCX Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 06/13] target/ppc: Tidy gen_conditional_store Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 07/13] target/ppc: Split out gen_load_locked Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 08/13] target/ppc: Split out gen_ld_atomic Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 09/13] target/ppc: Split out gen_st_atomic Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 10/13] target/ppc: Use MO_ALIGN for EXIWX and ECOWX Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 11/13] target/ppc: Use atomic min/max helpers Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 12/13] target/ppc: Implement the rest of gen_ld_atomic Richard Henderson
2018-06-26 16:19 ` [Qemu-devel] [PATCH 13/13] target/ppc: Implement the rest of gen_st_atomic Richard Henderson
2018-06-29 4:15 ` [Qemu-devel] [PATCH 00/13] target/ppc improve atomic operations David Gibson
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