linux-pm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Mihai Carabas <mihai.carabas@oracle.com>
To: linux-arm-kernel@lists.infradead.org
Cc: 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,
	pmladek@suse.com, 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, mihai.carabas@oracle.com, arnd@arndb.de,
	ankur.a.arora@oracle.com
Subject: [PATCH v4 8/8] cpuidle: replace with HAS_CPU_RELAX with HAS_WANTS_IDLE_POLL
Date: Thu, 15 Feb 2024 09:41:50 +0200	[thread overview]
Message-ID: <1707982910-27680-9-git-send-email-mihai.carabas@oracle.com> (raw)
In-Reply-To: <1707982910-27680-1-git-send-email-mihai.carabas@oracle.com>

Replace ARCH_HAS_CPU_RELAX with ARCH_WANTS_IDLE_POLL for clarity as it controls
the building of poll_state.

Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Ankur arora <ankur.a.arora@oracle.com>
Signed-off-by: Mihai Carabas <mihai.carabas@oracle.com>
---
 arch/Kconfig                  | 2 +-
 arch/arm64/Kconfig            | 2 +-
 arch/x86/Kconfig              | 2 +-
 drivers/acpi/processor_idle.c | 4 ++--
 drivers/cpuidle/Makefile      | 2 +-
 include/linux/cpuidle.h       | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 5b2e8a88853c..e7659a3a7d58 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1363,7 +1363,7 @@ config RELR
 config ARCH_HAS_MEM_ENCRYPT
 	bool
 
-config ARCH_HAS_CPU_RELAX
+config ARCH_WANTS_IDLE_POLL
 	bool
 
 config ARCH_HAS_CC_PLATFORM
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index bc628a3165eb..7c963f7c10e4 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -107,7 +107,7 @@ config ARM64
 	select ARCH_WANT_LD_ORPHAN_WARN
 	select ARCH_WANTS_NO_INSTR
 	select ARCH_WANTS_THP_SWAP if ARM64_4K_PAGES
-	select ARCH_HAS_CPU_RELAX
+	select ARCH_WANTS_IDLE_POLL
 	select ARCH_HAS_UBSAN_SANITIZE_ALL
 	select ARM_AMBA
 	select ARM_ARCH_TIMER
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8c4312133832..90f5d16be8c0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -73,7 +73,7 @@ config X86
 	select ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION
 	select ARCH_HAS_CPU_FINALIZE_INIT
 	select ARCH_HAS_CPU_PASID		if IOMMU_SVA
-	select ARCH_HAS_CPU_RELAX
+	select ARCH_WANTS_IDLE_POLL
 	select ARCH_HAS_CURRENT_STACK_POINTER
 	select ARCH_HAS_DEBUG_VIRTUAL
 	select ARCH_HAS_DEBUG_VM_PGTABLE	if !X86_PAE
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 55437f5e0c3a..6a0a1f16a5c3 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -36,7 +36,7 @@
 #include <asm/cpu.h>
 #endif
 
-#define ACPI_IDLE_STATE_START	(IS_ENABLED(CONFIG_ARCH_HAS_CPU_RELAX) ? 1 : 0)
+#define ACPI_IDLE_STATE_START	(IS_ENABLED(CONFIG_ARCH_WANTS_IDLE_POLL) ? 1 : 0)
 
 static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
 module_param(max_cstate, uint, 0400);
@@ -787,7 +787,7 @@ static int acpi_processor_setup_cstates(struct acpi_processor *pr)
 	if (max_cstate == 0)
 		max_cstate = 1;
 
-	if (IS_ENABLED(CONFIG_ARCH_HAS_CPU_RELAX)) {
+	if (IS_ENABLED(CONFIG_ARCH_WANTS_IDLE_POLL)) {
 		cpuidle_poll_state_init(drv);
 		count = 1;
 	} else {
diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile
index d103342b7cfc..23f48d99f0f2 100644
--- a/drivers/cpuidle/Makefile
+++ b/drivers/cpuidle/Makefile
@@ -7,7 +7,7 @@ obj-y += cpuidle.o driver.o governor.o sysfs.o governors/
 obj-$(CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED) += coupled.o
 obj-$(CONFIG_DT_IDLE_STATES)		  += dt_idle_states.o
 obj-$(CONFIG_DT_IDLE_GENPD)		  += dt_idle_genpd.o
-obj-$(CONFIG_ARCH_HAS_CPU_RELAX)	  += poll_state.o
+obj-$(CONFIG_ARCH_WANTS_IDLE_POLL)	  += poll_state.o
 obj-$(CONFIG_HALTPOLL_CPUIDLE)		  += cpuidle-haltpoll.o
 
 ##################################################################################
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 3183aeb7f5b4..53e55a91d55d 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -275,7 +275,7 @@ static inline void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev,
 }
 #endif
 
-#if defined(CONFIG_CPU_IDLE) && defined(CONFIG_ARCH_HAS_CPU_RELAX)
+#if defined(CONFIG_CPU_IDLE) && defined(CONFIG_ARCH_WANTS_IDLE_POLL)
 void cpuidle_poll_state_init(struct cpuidle_driver *drv);
 #else
 static inline void cpuidle_poll_state_init(struct cpuidle_driver *drv) {}
-- 
1.8.3.1


      parent reply	other threads:[~2024-02-15  8:58 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-15  7:41 [PATCH v4] Enable haltpoll for arm64 Mihai Carabas
2024-02-15  7:41 ` [PATCH v4 1/8] x86: Move ARCH_HAS_CPU_RELAX to arch Mihai Carabas
2024-02-15  7:41 ` [PATCH v4 2/8] x86/kvm: Move haltpoll_want() to be arch defined Mihai Carabas
2024-02-15  7:41 ` [PATCH v4 3/8] governors/haltpoll: Drop kvm_para_available() check Mihai Carabas
2024-02-15  7:41 ` [PATCH v4 4/8] arm64: Select ARCH_HAS_CPU_RELAX Mihai Carabas
2024-02-15  7:41 ` [PATCH v4 5/8] arm64: Define TIF_POLLING_NRFLAG Mihai Carabas
2024-02-15  7:41 ` [PATCH v4 6/8] cpuidle-haltpoll: ARM64 support Mihai Carabas
2024-02-26  8:30   ` Tomohiro Misono (Fujitsu)
2024-02-15  7:41 ` [PATCH v4 7/8] cpuidle/poll_state: replace cpu_relax with smp_cond_load_relaxed Mihai Carabas
2024-02-26  8:36   ` Tomohiro Misono (Fujitsu)
2024-02-28  4:36     ` Ankur Arora
2024-04-05 21:51   ` Okanovic, Haris
2024-04-05 23:14     ` Ankur Arora
2024-04-06 18:42       ` Okanovic, Haris
2024-04-08 18:46         ` Ankur Arora
2024-04-08 20:04           ` Okanovic, Haris
2024-02-15  7:41 ` Mihai Carabas [this message]

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=1707982910-27680-9-git-send-email-mihai.carabas@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).