From: Catalin Marinas <catalin.marinas@arm.com>
To: Dave Martin <Dave.Martin@arm.com>
Cc: linux-arch@vger.kernel.org,
Richard Earnshaw <Richard.Earnshaw@arm.com>,
Will Deacon <will@kernel.org>,
Szabolcs Nagy <szabolcs.nagy@arm.com>,
Andrey Konovalov <andreyknvl@google.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
linux-mm@kvack.org, Vincenzo Frascino <vincenzo.frascino@arm.com>,
Peter Collingbourne <pcc@google.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 01/23] arm64: alternative: Allow alternative_insn to always issue the first instruction
Date: Mon, 4 May 2020 15:47:44 +0100 [thread overview]
Message-ID: <20200504144743.GB2884@gaia> (raw)
In-Reply-To: <20200429140425.GC10651@gaia>
On Wed, Apr 29, 2020 at 03:04:25PM +0100, Catalin Marinas wrote:
> From 73f3869cb68fab1505d7b400ae8a39a19c5fc9e9 Mon Sep 17 00:00:00 2001
> From: Catalin Marinas <catalin.marinas@arm.com>
> Date: Wed, 27 Nov 2019 09:07:30 +0000
> Subject: [PATCH] arm64: alternative: Always emit the first instruction in
> ALTERNATIVE blocks
>
> Currently with the ALTERNATIVE macro or alternative_insn, the cfg (or
> enable) arguments disable the entire asm block. Change the macros to
> only omit the alternative block on !IS_ENABLED(cfg). In addition, remove
> the cfg arguments to to ALTERNATIVE in those few calls where it is still
> passed. There is no change to the resulting kernel image with defconfig.
>
> alternative_insn's enable argument will be used in a subsequent patch
> and we are keeping the ALTERNATIVE C macro arguments in line with the
> asm version.
>
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will@kernel.org>
I no longer need this patch as I moved the page tag zeroing from
clear_page to the actual mte.S file (called via set_pte_at()). So don't
bother reviewing this.
--
Catalin
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next prev parent reply other threads:[~2020-05-04 14:47 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-21 14:25 [PATCH v3 00/23] arm64: Memory Tagging Extension user-space support Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 01/23] arm64: alternative: Allow alternative_insn to always issue the first instruction Catalin Marinas
2020-04-27 16:57 ` Dave Martin
2020-04-28 11:43 ` Catalin Marinas
2020-04-29 10:26 ` Dave Martin
2020-04-29 14:04 ` Catalin Marinas
2020-05-04 14:47 ` Catalin Marinas [this message]
2020-04-21 14:25 ` [PATCH v3 02/23] arm64: mte: system register definitions Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 03/23] arm64: mte: CPU feature detection and initial sysreg configuration Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 04/23] arm64: mte: Use Normal Tagged attributes for the linear map Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 05/23] arm64: mte: Assembler macros and default architecture for .S files Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 06/23] arm64: mte: Tags-aware clear_page() implementation Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 07/23] arm64: mte: Tags-aware copy_page() implementation Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 08/23] arm64: Tags-aware memcmp_pages() implementation Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 09/23] arm64: mte: Add specific SIGSEGV codes Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 10/23] arm64: mte: Handle synchronous and asynchronous tag check faults Catalin Marinas
2020-04-23 10:38 ` Catalin Marinas
2020-04-27 16:58 ` Dave Martin
2020-04-28 13:43 ` Catalin Marinas
2020-04-29 10:26 ` Dave Martin
2020-04-21 14:25 ` [PATCH v3 11/23] mm: Introduce arch_calc_vm_flag_bits() Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 12/23] arm64: mte: Add PROT_MTE support to mmap() and mprotect() Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 13/23] mm: Introduce arch_validate_flags() Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 14/23] arm64: mte: Validate the PROT_MTE request via arch_validate_flags() Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 15/23] mm: Allow arm64 mmap(PROT_MTE) on RAM-based files Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 16/23] arm64: mte: Allow user control of the tag check mode via prctl() Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 17/23] arm64: mte: Allow user control of the generated random tags " Catalin Marinas
2020-04-21 14:25 ` [PATCH v3 18/23] arm64: mte: Restore the GCR_EL1 register after a suspend Catalin Marinas
2020-04-23 15:23 ` Lorenzo Pieralisi
2020-04-21 14:25 ` [PATCH v3 19/23] arm64: mte: Add PTRACE_{PEEK,POKE}MTETAGS support Catalin Marinas
2020-04-24 23:28 ` [PATCH v3 19/23] arm64: mte: Add PTRACE_{PEEK, POKE}MTETAGS support Peter Collingbourne
2020-04-29 10:27 ` [PATCH v3 19/23] arm64: mte: Add PTRACE_{PEEK,POKE}MTETAGS support Kevin Brodsky
2020-04-29 15:24 ` Catalin Marinas
2020-04-29 16:46 ` Dave Martin
2020-04-30 10:21 ` Catalin Marinas
2020-05-04 16:40 ` Dave Martin
2020-05-05 18:03 ` Luis Machado
2020-05-12 19:05 ` Luis Machado
2020-05-13 10:48 ` Catalin Marinas
2020-05-13 12:52 ` Luis Machado
2020-05-13 14:11 ` Catalin Marinas
2020-05-13 15:09 ` Luis Machado
2020-05-13 16:45 ` Luis Machado
2020-05-13 17:11 ` Catalin Marinas
2020-05-18 16:47 ` Dave Martin
2020-05-18 17:12 ` Luis Machado
2020-05-19 16:10 ` Catalin Marinas
2020-04-21 14:26 ` [PATCH v3 20/23] fs: Allow copy_mount_options() to access user-space in a single pass Catalin Marinas
2020-04-21 15:29 ` Al Viro
2020-04-21 16:45 ` Catalin Marinas
2020-04-27 16:56 ` Dave Martin
2020-04-28 14:06 ` Catalin Marinas
2020-04-29 10:28 ` Dave Martin
2020-04-28 18:16 ` Kevin Brodsky
2020-04-28 19:40 ` Catalin Marinas
2020-04-29 11:58 ` Catalin Marinas
2020-04-28 19:36 ` Catalin Marinas
2020-04-29 10:26 ` Dave Martin
2020-04-29 13:52 ` Catalin Marinas
2020-05-04 16:40 ` Dave Martin
2020-04-21 14:26 ` [PATCH v3 21/23] arm64: mte: Check the DT memory nodes for MTE support Catalin Marinas
2020-04-24 13:57 ` Catalin Marinas
2020-04-24 16:17 ` Catalin Marinas
2020-04-27 11:14 ` Suzuki K Poulose
2020-04-21 14:26 ` [PATCH v3 22/23] arm64: mte: Kconfig entry Catalin Marinas
2020-04-21 14:26 ` [PATCH v3 23/23] arm64: mte: Add Memory Tagging Extension documentation Catalin Marinas
2020-04-29 16:47 ` Dave Martin
2020-04-30 16:23 ` Catalin Marinas
2020-05-04 16:46 ` Dave Martin
2020-05-11 16:40 ` Catalin Marinas
2020-05-13 15:48 ` Dave Martin
2020-05-14 11:37 ` Catalin Marinas
2020-05-15 10:38 ` Catalin Marinas
2020-05-15 11:14 ` Szabolcs Nagy
2020-05-15 11:27 ` Catalin Marinas
2020-05-15 12:04 ` Szabolcs Nagy
2020-05-15 12:13 ` Catalin Marinas
2020-05-15 12:53 ` Szabolcs Nagy
2020-05-18 16:52 ` Dave Martin
2020-05-18 17:13 ` Catalin Marinas
2020-05-05 10:32 ` Szabolcs Nagy
2020-05-05 17:30 ` Catalin Marinas
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