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From: Jianyong Wu <jianyong.wu@arm.com>
To: netdev@vger.kernel.org, pbonzini@redhat.com,
	sean.j.christopherson@intel.com, maz@kernel.org,
	richardcochran@gmail.com, Mark.Rutland@arm.com,
	Will.Deacon@arm.com, suzuki.poulose@arm.com
Cc: linux-kernel@vger.kernel.org, Steve.Capper@arm.com,
	Kaly.Xin@arm.com, justin.he@arm.com, jianyong.wu@arm.com,
	nd@arm.com, linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH v2 1/6] Export psci_ops.conduit symbol as modules will use it.
Date: Tue, 17 Sep 2019 07:24:25 -0400	[thread overview]
Message-ID: <20190917112430.45680-2-jianyong.wu@arm.com> (raw)
In-Reply-To: <20190917112430.45680-1-jianyong.wu@arm.com>

If arm_smccc_1_1_invoke used in modules, psci_ops.conduit should
be export.

Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
---
 drivers/firmware/psci/psci.c | 6 ++++++
 include/linux/arm-smccc.h    | 2 +-
 include/linux/psci.h         | 1 +
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index f82ccd39a913..35c4eaab1451 100644
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c
@@ -212,6 +212,12 @@ static unsigned long psci_migrate_info_up_cpu(void)
 			      0, 0, 0);
 }
 
+enum psci_conduit psci_get_conduit(void)
+{
+	return psci_ops.conduit;
+}
+EXPORT_SYMBOL(psci_get_conduit);
+
 static void set_conduit(enum psci_conduit conduit)
 {
 	switch (conduit) {
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 552cbd49abe8..a6e4d3e3d10a 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -357,7 +357,7 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
  * The return value also provides the conduit that was used.
  */
 #define arm_smccc_1_1_invoke(...) ({					\
-		int method = psci_ops.conduit;				\
+		int method = psci_get_conduit();			\
 		switch (method) {					\
 		case PSCI_CONDUIT_HVC:					\
 			arm_smccc_1_1_hvc(__VA_ARGS__);			\
diff --git a/include/linux/psci.h b/include/linux/psci.h
index a8a15613c157..e5cedc986049 100644
--- a/include/linux/psci.h
+++ b/include/linux/psci.h
@@ -42,6 +42,7 @@ struct psci_operations {
 	enum smccc_version smccc_version;
 };
 
+extern enum psci_conduit psci_get_conduit(void);
 extern struct psci_operations psci_ops;
 
 #if defined(CONFIG_ARM_PSCI_FW)
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Jianyong Wu <jianyong.wu@arm.com>
To: netdev@vger.kernel.org, pbonzini@redhat.com,
	sean.j.christopherson@intel.com, maz@kernel.org,
	richardcochran@gmail.com, Mark.Rutland@arm.com,
	Will.Deacon@arm.com, suzuki.poulose@arm.com
Cc: justin.he@arm.com, Steve.Capper@arm.com, jianyong.wu@arm.com,
	linux-kernel@vger.kernel.org, Kaly.Xin@arm.com, nd@arm.com,
	linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH v2 1/6] Export psci_ops.conduit symbol as modules will use it.
Date: Tue, 17 Sep 2019 07:24:25 -0400	[thread overview]
Message-ID: <20190917112430.45680-2-jianyong.wu@arm.com> (raw)
In-Reply-To: <20190917112430.45680-1-jianyong.wu@arm.com>

If arm_smccc_1_1_invoke used in modules, psci_ops.conduit should
be export.

Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
---
 drivers/firmware/psci/psci.c | 6 ++++++
 include/linux/arm-smccc.h    | 2 +-
 include/linux/psci.h         | 1 +
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index f82ccd39a913..35c4eaab1451 100644
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c
@@ -212,6 +212,12 @@ static unsigned long psci_migrate_info_up_cpu(void)
 			      0, 0, 0);
 }
 
+enum psci_conduit psci_get_conduit(void)
+{
+	return psci_ops.conduit;
+}
+EXPORT_SYMBOL(psci_get_conduit);
+
 static void set_conduit(enum psci_conduit conduit)
 {
 	switch (conduit) {
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 552cbd49abe8..a6e4d3e3d10a 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -357,7 +357,7 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
  * The return value also provides the conduit that was used.
  */
 #define arm_smccc_1_1_invoke(...) ({					\
-		int method = psci_ops.conduit;				\
+		int method = psci_get_conduit();			\
 		switch (method) {					\
 		case PSCI_CONDUIT_HVC:					\
 			arm_smccc_1_1_hvc(__VA_ARGS__);			\
diff --git a/include/linux/psci.h b/include/linux/psci.h
index a8a15613c157..e5cedc986049 100644
--- a/include/linux/psci.h
+++ b/include/linux/psci.h
@@ -42,6 +42,7 @@ struct psci_operations {
 	enum smccc_version smccc_version;
 };
 
+extern enum psci_conduit psci_get_conduit(void);
 extern struct psci_operations psci_ops;
 
 #if defined(CONFIG_ARM_PSCI_FW)
-- 
2.17.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2019-09-17 11:25 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-17 11:24 [RFC PATCH v2 0/6] Enable ptp_kvm for arm64 Jianyong Wu
2019-09-17 11:24 ` Jianyong Wu
2019-09-17 11:24 ` Jianyong Wu [this message]
2019-09-17 11:24   ` [RFC PATCH v2 1/6] Export psci_ops.conduit symbol as modules will use it Jianyong Wu
2019-09-17 11:24 ` [RFC PATCH v2 2/6] reorganize ptp_kvm modules to make it arch-independent Jianyong Wu
2019-09-17 11:24   ` Jianyong Wu
2019-09-17 11:24 ` [PATCH 3/6] Timer: expose monotonic clock and counter value Jianyong Wu
2019-09-17 11:24   ` Jianyong Wu
2019-09-17 17:10   ` Marc Zyngier
2019-09-17 17:10     ` Marc Zyngier
2019-09-18  2:50     ` Jianyong Wu (Arm Technology China)
2019-09-18  2:50       ` Jianyong Wu (Arm Technology China)
2019-09-18  3:42   ` Richard Cochran
2019-09-18  3:42     ` Richard Cochran
2019-09-18  6:01     ` Jianyong Wu (Arm Technology China)
2019-09-18  6:01       ` Jianyong Wu (Arm Technology China)
2019-09-17 11:24 ` [RFC PATCH v2 4/6] arm64: Add hvc call service for ptp_kvm Jianyong Wu
2019-09-17 11:24   ` Jianyong Wu
2019-09-17 11:24 ` [RFC PATCH V2 5/6] Enable ptp_kvm for arm64 Jianyong Wu
2019-09-17 11:24   ` Jianyong Wu
2019-09-17 11:24 ` [PATCH 6/6] kvm: add kvm ptp capability extension " Jianyong Wu
2019-09-17 11:24   ` Jianyong Wu

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