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From: Andrew Donnellan <ajd@linux.ibm.com>
To: Jordan Niethe <jniethe5@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: alistair@popple.id.au
Subject: Re: [PATCH 00/18] Initial Prefixed Instruction support
Date: Tue, 3 Dec 2019 15:31:50 +1100	[thread overview]
Message-ID: <c22200d0-6af9-9f30-533f-6288c85324d7@linux.ibm.com> (raw)
In-Reply-To: <20191126052141.28009-1-jniethe5@gmail.com>

On 26/11/19 4:21 pm, Jordan Niethe wrote:
> A future revision of the ISA will introduce prefixed instructions. A
> prefixed instruction is composed of a 4-byte prefix followed by a
> 4-byte suffix.
> 
> All prefixes have the major opcode 1. A prefix will never be a valid
> word instruction. A suffix may be an existing word instruction or a new
> instruction.
> 
> The new instruction formats are:
>      * Eight-Byte Load/Store Instructions
>      * Eight-Byte Register-to-Register Instructions
>      * Modified Load/Store Instructions
>      * Modified Register-to-Register Instructions
> 
> This series enables prefixed instructions and extends the instruction
> emulation to support them. Then the places where prefixed instructions
> might need to be emulated are updated.
> 
> A future series will add prefixed instruction support to guests running
> in KVM.

Snowpatch found sparse warnings:

https://openpower.xyz/job/snowpatch/job/snowpatch-linux-sparse/14381//artifact/linux/report.txt

(And a few minor checkpatch things too)
-- 
Andrew Donnellan              OzLabs, ADL Canberra
ajd@linux.ibm.com             IBM Australia Limited


      parent reply	other threads:[~2019-12-03  5:10 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-26  5:21 [PATCH 00/18] Initial Prefixed Instruction support Jordan Niethe
2019-11-26  5:21 ` [PATCH 01/18] powerpc: Enable Prefixed Instructions Jordan Niethe
2019-11-26  5:21 ` [PATCH 02/18] powerpc: Add BOUNDARY SRR1 bit for future ISA version Jordan Niethe
2019-11-26  5:21 ` [PATCH 03/18] powerpc: Add PREFIXED " Jordan Niethe
2019-12-18  8:23   ` Daniel Axtens
2019-12-20  5:09     ` Jordan Niethe
2019-11-26  5:21 ` [PATCH 04/18] powerpc: Rename Bit 35 of SRR1 to indicate new purpose Jordan Niethe
2019-11-26  5:21 ` [PATCH 05/18] powerpc sstep: Prepare to support prefixed instructions Jordan Niethe
2019-12-18  8:35   ` Daniel Axtens
2019-12-20  5:11     ` Jordan Niethe
2019-12-20  5:40       ` Christophe Leroy
2019-12-18 14:15   ` Daniel Axtens
2019-12-20  5:17     ` Jordan Niethe
2020-01-07  3:01       ` Jordan Niethe
2020-01-13  6:18   ` Balamuruhan S
2020-02-06 23:12     ` Jordan Niethe
2019-11-26  5:21 ` [PATCH 06/18] powerpc sstep: Add support for prefixed integer load/stores Jordan Niethe
2020-01-10 10:38   ` Balamuruhan S
2020-02-07  0:18     ` Jordan Niethe
2020-01-10 15:13   ` Balamuruhan S
2020-02-07  0:20     ` Jordan Niethe
2019-11-26  5:21 ` [PATCH 07/18] powerpc sstep: Add support for prefixed floating-point load/stores Jordan Niethe
2019-11-26  5:21 ` [PATCH 08/18] powerpc sstep: Add support for prefixed VSX load/stores Jordan Niethe
2019-12-18 14:05   ` Daniel Axtens
2019-11-26  5:21 ` [PATCH 09/18] powerpc sstep: Add support for prefixed fixed-point arithmetic Jordan Niethe
2019-11-26  5:21 ` [PATCH 10/18] powerpc: Support prefixed instructions in alignment handler Jordan Niethe
2019-11-26  5:21 ` [PATCH 11/18] powerpc/traps: Check for prefixed instructions in facility_unavailable_exception() Jordan Niethe
2019-11-26  5:21 ` [PATCH 12/18] powerpc/xmon: Add initial support for prefixed instructions Jordan Niethe
2019-11-26  5:21 ` [PATCH 13/18] powerpc/xmon: Dump " Jordan Niethe
2019-11-26  5:21 ` [PATCH 14/18] powerpc/kprobes: Support kprobes on " Jordan Niethe
2020-01-14  7:19   ` Balamuruhan S
2020-01-16  6:09     ` Michael Ellerman
2019-11-26  5:21 ` [PATCH 15/18] powerpc/uprobes: Add support for " Jordan Niethe
2020-01-13 11:30   ` Balamuruhan S
2020-02-06 23:09     ` Jordan Niethe
2019-11-26  5:21 ` [PATCH 16/18] powerpc/hw_breakpoints: Initial " Jordan Niethe
2019-11-26  5:21 ` [PATCH 17/18] powerpc: Add prefix support to mce_find_instr_ea_and_pfn() Jordan Niethe
2019-11-26  5:21 ` [PATCH 18/18] powerpc/fault: Use analyse_instr() to check for store with updates to sp Jordan Niethe
2019-12-18 14:11   ` Daniel Axtens
2020-02-07  8:15     ` Greg Kurz
2020-02-08  0:28       ` Jordan Niethe
2019-12-03  4:31 ` Andrew Donnellan [this message]

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