From: James Morse <james.morse@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Marc Zyngier <marc.zyngier@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Rob Herring <robh+dt@kernel.org>, Loc Ho <lho@apm.com>,
Heyi Guo <guoheyi@huawei.com>,
kvmarm@lists.cs.columbia.edu
Subject: [PATCH v6 13/16] arm64: acpi: Remove __init from acpi_psci_use_hvc() for use by SDEI
Date: Mon, 8 Jan 2018 15:38:15 +0000 [thread overview]
Message-ID: <20180108153818.22743-14-james.morse@arm.com> (raw)
In-Reply-To: <20180108153818.22743-1-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 6306ab10af18..f724fd8c78e8 100644
--- a/include/linux/psci.h
+++ b/include/linux/psci.h
@@ -47,10 +47,11 @@ 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
next prev parent reply other threads:[~2018-01-08 15:36 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-08 15:38 [PATCH v6 00/16] arm64/firmware: Software Delegated Exception Interface James Morse
2018-01-08 15:38 ` [PATCH v6 08/16] arm64: Add vmap_stack header file James Morse
[not found] ` <20180108153818.22743-1-james.morse-5wv7dgnIgG8@public.gmane.org>
2018-01-08 15:38 ` [PATCH v6 01/16] KVM: arm64: Store vcpu on the stack during __guest_enter() James Morse
2018-01-08 15:38 ` [PATCH v6 02/16] KVM: arm/arm64: Convert kvm_host_cpu_state to a static per-cpu allocation James Morse
2018-01-08 15:38 ` [PATCH v6 03/16] KVM: arm64: Change hyp_panic()s dependency on tpidr_el2 James Morse
2018-01-08 15:38 ` [PATCH v6 04/16] arm64: alternatives: use tpidr_el2 on VHE hosts James Morse
2018-01-08 15:38 ` [PATCH v6 05/16] KVM: arm64: Stop save/restoring host tpidr_el1 on VHE James Morse
2018-01-08 15:38 ` [PATCH v6 06/16] Docs: dt: add devicetree binding for describing arm64 SDEI firmware James Morse
2018-01-08 15:38 ` [PATCH v6 07/16] firmware: arm_sdei: Add driver for Software Delegated Exceptions James Morse
2018-01-08 15:38 ` [PATCH v6 09/16] arm64: uaccess: Add PAN helper James Morse
2018-01-08 15:38 ` [PATCH v6 10/16] arm64: kernel: Add arch-specific SDEI entry code and CPU masking James Morse
2018-01-08 15:38 ` [PATCH v6 12/16] firmware: arm_sdei: add support for CPU private events James Morse
2018-01-08 15:38 ` [PATCH v6 15/16] arm64: mmu: add the entry trampolines start/end section markers into sections.h James Morse
2018-01-08 15:38 ` [PATCH v6 16/16] arm64: sdei: Add trampoline code for remapping the kernel James Morse
2018-01-08 15:38 ` [PATCH v6 11/16] firmware: arm_sdei: Add support for CPU and system power states James Morse
[not found] ` <20180108153818.22743-12-james.morse-5wv7dgnIgG8@public.gmane.org>
2018-01-08 17:22 ` Lorenzo Pieralisi
2018-01-13 12:00 ` Catalin Marinas
2018-01-14 12:20 ` Lorenzo Pieralisi
2018-01-17 12:01 ` James Morse
2018-01-08 15:38 ` James Morse [this message]
2018-01-08 15:51 ` [PATCH v6 13/16] arm64: acpi: Remove __init from acpi_psci_use_hvc() for use by SDEI Lorenzo Pieralisi
2018-01-08 15:38 ` [PATCH v6 14/16] firmware: arm_sdei: Discover SDEI support via ACPI James Morse
[not found] ` <20180108153818.22743-15-james.morse-5wv7dgnIgG8@public.gmane.org>
2018-01-08 17:56 ` Lorenzo Pieralisi
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=20180108153818.22743-14-james.morse@arm.com \
--to=james.morse@arm.com \
--cc=catalin.marinas@arm.com \
--cc=devicetree@vger.kernel.org \
--cc=guoheyi@huawei.com \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=lho@apm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=marc.zyngier@arm.com \
--cc=robh+dt@kernel.org \
--cc=will.deacon@arm.com \
/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