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From: James Morse <james.morse-5wv7dgnIgG8@public.gmane.org>
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: kvmarm-FPEHb7Xf0XXUo1n7N8X6UoWGPAHP3yOg@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
	Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>,
	Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Marc Zyngier <marc.zyngier-5wv7dgnIgG8@public.gmane.org>,
	Christoffer Dall
	<christoffer.dall-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Lorenzo Pieralisi
	<lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>,
	Loc Ho <lho-qTEPVZfXA3Y@public.gmane.org>,
	Heyi Guo <guoheyi-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Subject: [PATCH v5 13/16] arm64: acpi: Remove __init from acpi_psci_use_hvc() for use by SDEI
Date: Wed,  6 Dec 2017 19:01:39 +0000	[thread overview]
Message-ID: <20171206190142.9246-14-james.morse@arm.com> (raw)
In-Reply-To: <20171206190142.9246-1-james.morse-5wv7dgnIgG8@public.gmane.org>

SDEI inherits the 'use hvc' bit that is also used by PSCI. PSCI does all
its initialisation early, SDEI does its late.

Remove the __init annotation from acpi_psci_use_hvc().

Signed-off-by: James Morse <james.morse-5wv7dgnIgG8@public.gmane.org>
Acked-by: Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>
---
The function name is unchanged as this bit is named 'PSCI_USE_HVC'
in table 5-37 of ACPIv6.2.

 arch/arm64/kernel/acpi.c | 2 +-
 include/linux/psci.h     | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index b3162715ed78..252396a96c78 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -117,7 +117,7 @@ bool __init acpi_psci_present(void)
 }
 
 /* Whether HVC must be used instead of SMC as the PSCI conduit */
-bool __init acpi_psci_use_hvc(void)
+bool acpi_psci_use_hvc(void)
 {
 	return acpi_gbl_FADT.arm_boot_flags & ACPI_FADT_PSCI_USE_HVC;
 }
diff --git a/include/linux/psci.h b/include/linux/psci.h
index bdea1cb5e1db..e25a99992a82 100644
--- a/include/linux/psci.h
+++ b/include/linux/psci.h
@@ -46,10 +46,11 @@ static inline int psci_dt_init(void) { return 0; }
 #if defined(CONFIG_ARM_PSCI_FW) && defined(CONFIG_ACPI)
 int __init psci_acpi_init(void);
 bool __init acpi_psci_present(void);
-bool __init acpi_psci_use_hvc(void);
+bool acpi_psci_use_hvc(void);
 #else
 static inline int psci_acpi_init(void) { return 0; }
 static inline bool acpi_psci_present(void) { return false; }
+static inline bool acpi_psci_use_hvc(void) {return false; }
 #endif
 
 #endif /* __LINUX_PSCI_H */
-- 
2.15.0

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WARNING: multiple messages have this Message-ID (diff)
From: james.morse@arm.com (James Morse)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 13/16] arm64: acpi: Remove __init from acpi_psci_use_hvc() for use by SDEI
Date: Wed,  6 Dec 2017 19:01:39 +0000	[thread overview]
Message-ID: <20171206190142.9246-14-james.morse@arm.com> (raw)
In-Reply-To: <20171206190142.9246-1-james.morse@arm.com>

SDEI inherits the 'use hvc' bit that is also used by PSCI. PSCI does all
its initialisation early, SDEI does its late.

Remove the __init annotation from acpi_psci_use_hvc().

Signed-off-by: James Morse <james.morse@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
The function name is unchanged as this bit is named 'PSCI_USE_HVC'
in table 5-37 of ACPIv6.2.

 arch/arm64/kernel/acpi.c | 2 +-
 include/linux/psci.h     | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index b3162715ed78..252396a96c78 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -117,7 +117,7 @@ bool __init acpi_psci_present(void)
 }
 
 /* Whether HVC must be used instead of SMC as the PSCI conduit */
-bool __init acpi_psci_use_hvc(void)
+bool acpi_psci_use_hvc(void)
 {
 	return acpi_gbl_FADT.arm_boot_flags & ACPI_FADT_PSCI_USE_HVC;
 }
diff --git a/include/linux/psci.h b/include/linux/psci.h
index bdea1cb5e1db..e25a99992a82 100644
--- a/include/linux/psci.h
+++ b/include/linux/psci.h
@@ -46,10 +46,11 @@ static inline int psci_dt_init(void) { return 0; }
 #if defined(CONFIG_ARM_PSCI_FW) && defined(CONFIG_ACPI)
 int __init psci_acpi_init(void);
 bool __init acpi_psci_present(void);
-bool __init acpi_psci_use_hvc(void);
+bool acpi_psci_use_hvc(void);
 #else
 static inline int psci_acpi_init(void) { return 0; }
 static inline bool acpi_psci_present(void) { return false; }
+static inline bool acpi_psci_use_hvc(void) {return false; }
 #endif
 
 #endif /* __LINUX_PSCI_H */
-- 
2.15.0

  parent reply	other threads:[~2017-12-06 19:01 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-06 19:01 [PATCH v5 00/16] arm64/firmware: Software Delegated Exception Interface James Morse
2017-12-06 19:01 ` James Morse
     [not found] ` <20171206190142.9246-1-james.morse-5wv7dgnIgG8@public.gmane.org>
2017-12-06 19:01   ` [PATCH v5 01/16] KVM: arm64: Store vcpu on the stack during __guest_enter() James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 02/16] KVM: arm/arm64: Convert kvm_host_cpu_state to a static per-cpu allocation James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 03/16] KVM: arm64: Change hyp_panic()s dependency on tpidr_el2 James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 04/16] arm64: alternatives: use tpidr_el2 on VHE hosts James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 05/16] KVM: arm64: Stop save/restoring host tpidr_el1 on VHE James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 06/16] Docs: dt: add devicetree binding for describing arm64 SDEI firmware James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 07/16] firmware: arm_sdei: Add driver for Software Delegated Exceptions James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 08/16] arm64: Add vmap_stack header file James Morse
2017-12-06 19:01     ` James Morse
     [not found]     ` <20171206190142.9246-9-james.morse-5wv7dgnIgG8@public.gmane.org>
2017-12-07 10:54       ` Mark Rutland
2017-12-07 10:54         ` Mark Rutland
2017-12-06 19:01   ` [PATCH v5 09/16] arm64: uaccess: Add PAN helper James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 10/16] arm64: kernel: Add arch-specific SDEI entry code and CPU masking James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 11/16] firmware: arm_sdei: Add support for CPU and system power states James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 12/16] firmware: arm_sdei: add support for CPU private events James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` James Morse [this message]
2017-12-06 19:01     ` [PATCH v5 13/16] arm64: acpi: Remove __init from acpi_psci_use_hvc() for use by SDEI James Morse
2017-12-06 19:01   ` [PATCH v5 14/16] firmware: arm_sdei: Discover SDEI support via ACPI James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 15/16] arm64: mmu: add the entry tramolines start/end section markers into sections.h James Morse
2017-12-06 19:01     ` James Morse
2017-12-06 19:01   ` [PATCH v5 16/16] arm64: sdei: Add trampoline code for remapping the kernel James Morse
2017-12-06 19:01     ` James Morse

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