From: Mihai Carabas <mihai.carabas@oracle.com>
To: Petr Mladek <pmladek@suse.com>
Cc: linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
catalin.marinas@arm.com, will@kernel.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com,
pbonzini@redhat.com, wanpengli@tencent.com, vkuznets@redhat.com,
rafael@kernel.org, daniel.lezcano@linaro.org,
akpm@linux-foundation.org, peterz@infradead.org,
dianders@chromium.org, npiggin@gmail.com,
rick.p.edgecombe@intel.com, joao.m.martins@oracle.com,
juerg.haefliger@canonical.com, mic@digikod.net, arnd@arndb.de,
ankur.a.arora@oracle.com
Subject: Re: [PATCH 1/7] x86: Move ARCH_HAS_CPU_RELAX to arch
Date: Tue, 28 Nov 2023 16:09:03 +0200 [thread overview]
Message-ID: <c46b6bbf-d308-4ad3-9e70-dda6894a40f0@oracle.com> (raw)
In-Reply-To: <ZWSrMzHEbdynTA8A@alley>
>> From: Joao Martins <joao.m.martins@oracle.com>
>>
>> ARM64 is going to use it for haltpoll support (for poll-state)
>> so move the definition to be arch-agnostic and allow architectures
>> to override it.
> This says that the definition is moved.
>
>> diff --git a/arch/Kconfig b/arch/Kconfig
>> index 4a85a10b12fd..92af0e9bc35e 100644
>> --- a/arch/Kconfig
>> +++ b/arch/Kconfig
>> @@ -1371,6 +1371,9 @@ config RELR
>> config ARCH_HAS_MEM_ENCRYPT
>> bool
>>
>> +config ARCH_HAS_CPU_RELAX
>> + bool
>> +
>> config ARCH_HAS_CC_PLATFORM
>> bool
>>
>> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
>> index d1c362f479d9..0c77670d020e 100644
>> --- a/arch/x86/Kconfig
>> +++ b/arch/x86/Kconfig
>> @@ -73,6 +73,7 @@ config X86
>> select ARCH_HAS_CACHE_LINE_SIZE
>> select ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION
>> select ARCH_HAS_CPU_FINALIZE_INIT
>> + select ARCH_HAS_CPU_RELAX
>> select ARCH_HAS_CURRENT_STACK_POINTER
>> select ARCH_HAS_DEBUG_VIRTUAL
>> select ARCH_HAS_DEBUG_VM_PGTABLE if !X86_PAE
> But the definion is only added here.
>
> I would expect that the patch also removes the original definion.
Thanks for catching this. I updated the patch:
diff --git a/arch/Kconfig b/arch/Kconfig
index 12d51495caec..626ddd9ba7e0 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1371,6 +1371,9 @@ config RELR
config ARCH_HAS_MEM_ENCRYPT
bool
+config ARCH_HAS_CPU_RELAX
+ bool
+
config ARCH_HAS_CC_PLATFORM
bool
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 66bfabae8814..aaca90ba791a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -72,6 +72,7 @@ config X86
select ARCH_HAS_CACHE_LINE_SIZE
select ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION
select ARCH_HAS_CPU_FINALIZE_INIT
+ select ARCH_HAS_CPU_RELAX
select ARCH_HAS_CURRENT_STACK_POINTER
select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEBUG_VM_PGTABLE if !X86_PAE
@@ -363,9 +364,6 @@ config ARCH_MAY_HAVE_PC_FDC
config GENERIC_CALIBRATE_DELAY
def_bool y
-config ARCH_HAS_CPU_RELAX
- def_bool y
-
config ARCH_HIBERNATION_POSSIBLE
def_bool y
next prev parent reply other threads:[~2023-11-28 14:12 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-20 14:01 [PATCH v2] Enable haltpoll for arm64 Mihai Carabas
2023-11-20 14:01 ` [PATCH 1/7] x86: Move ARCH_HAS_CPU_RELAX to arch Mihai Carabas
2023-11-27 14:44 ` Petr Mladek
2023-11-28 14:09 ` Mihai Carabas [this message]
2023-11-20 14:01 ` [PATCH 2/7] x86/kvm: Move haltpoll_want() to be arch defined Mihai Carabas
2023-11-29 20:55 ` Rafael J. Wysocki
2023-11-20 14:01 ` [PATCH 3/7] governors/haltpoll: Drop kvm_para_available() check Mihai Carabas
2023-11-20 14:01 ` [PATCH 4/7] arm64: Select ARCH_HAS_CPU_RELAX Mihai Carabas
2023-11-20 14:01 ` [PATCH 5/7] arm64: Define TIF_POLLING_NRFLAG Mihai Carabas
2023-11-20 14:01 ` [PATCH 6/7] cpuidle-haltpoll: ARM64 support Mihai Carabas
2023-11-20 14:01 ` [PATCH 7/7] cpuidle/poll_state: replace cpu_relax with smp_cond_load_relaxed Mihai Carabas
2023-11-22 20:51 ` Christoph Lameter
2023-11-22 21:33 ` Mihai Carabas
2023-11-27 20:17 ` Christoph Lameter (Ampere)
2023-12-01 6:59 ` Ankur Arora
2023-12-11 11:46 ` Will Deacon
2024-01-28 21:22 ` Mihai Carabas
2024-01-29 18:15 ` Will Deacon
2024-02-05 12:28 ` Mihai Carabas
2024-02-05 19:33 ` Ankur Arora
2024-01-17 21:19 ` [PATCH v2] Enable haltpoll for arm64 Christoph Lameter (Ampere)
2024-01-25 14:39 ` Mihai Carabas
2024-01-25 15:16 ` Rafael J. Wysocki
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=c46b6bbf-d308-4ad3-9e70-dda6894a40f0@oracle.com \
--to=mihai.carabas@oracle.com \
--cc=akpm@linux-foundation.org \
--cc=ankur.a.arora@oracle.com \
--cc=arnd@arndb.de \
--cc=bp@alien8.de \
--cc=catalin.marinas@arm.com \
--cc=daniel.lezcano@linaro.org \
--cc=dianders@chromium.org \
--cc=hpa@zytor.com \
--cc=joao.m.martins@oracle.com \
--cc=juerg.haefliger@canonical.com \
--cc=kvm@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=mic@digikod.net \
--cc=mingo@redhat.com \
--cc=npiggin@gmail.com \
--cc=pbonzini@redhat.com \
--cc=peterz@infradead.org \
--cc=pmladek@suse.com \
--cc=rafael@kernel.org \
--cc=rick.p.edgecombe@intel.com \
--cc=tglx@linutronix.de \
--cc=vkuznets@redhat.com \
--cc=wanpengli@tencent.com \
--cc=will@kernel.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).