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From: Dmitry Osipenko <digetx@gmail.com>
To: "Russell King" <linux@armlinux.org.uk>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Jonathan Hunter" <jonathanh@nvidia.com>,
	"Robert Yang" <decatf@gmail.com>,
	"Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 3/8] ARM: trusted_foundations: Provide information about whether firmware is registered
Date: Mon, 18 Feb 2019 03:17:21 +0300	[thread overview]
Message-ID: <20190218001726.16785-4-digetx@gmail.com> (raw)
In-Reply-To: <20190218001726.16785-1-digetx@gmail.com>

Add a helper that provides information about whether Trusted Foundations
firmware operations have been registered.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 arch/arm/firmware/trusted_foundations.c    | 5 +++++
 arch/arm/include/asm/trusted_foundations.h | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/arch/arm/firmware/trusted_foundations.c b/arch/arm/firmware/trusted_foundations.c
index c496f4cc49cb..d795ed83a3cd 100644
--- a/arch/arm/firmware/trusted_foundations.c
+++ b/arch/arm/firmware/trusted_foundations.c
@@ -172,3 +172,8 @@ void of_register_trusted_foundations(void)
 		panic("Trusted Foundation: missing version-minor property\n");
 	register_trusted_foundations(&pdata);
 }
+
+bool trusted_foundations_registered(void)
+{
+	return firmware_ops == &trusted_foundations_ops;
+}
diff --git a/arch/arm/include/asm/trusted_foundations.h b/arch/arm/include/asm/trusted_foundations.h
index cdd48ab7d191..3f23fa493db6 100644
--- a/arch/arm/include/asm/trusted_foundations.h
+++ b/arch/arm/include/asm/trusted_foundations.h
@@ -31,6 +31,7 @@
 #include <linux/of.h>
 #include <linux/cpu.h>
 #include <linux/smp.h>
+#include <linux/types.h>
 
 #define TF_PM_MODE_LP0			0
 #define TF_PM_MODE_LP1			1
@@ -47,6 +48,7 @@ struct trusted_foundations_platform_data {
 
 void register_trusted_foundations(struct trusted_foundations_platform_data *pd);
 void of_register_trusted_foundations(void);
+bool trusted_foundations_registered(void);
 
 #else /* CONFIG_TRUSTED_FOUNDATIONS */
 
@@ -74,6 +76,11 @@ static inline void of_register_trusted_foundations(void)
 	if (of_find_compatible_node(NULL, NULL, "tlm,trusted-foundations"))
 		register_trusted_foundations(NULL);
 }
+
+static inline bool trusted_foundations_registered(void)
+{
+	return false;
+}
 #endif /* CONFIG_TRUSTED_FOUNDATIONS */
 
 #endif
-- 
2.20.1

WARNING: multiple messages have this Message-ID (diff)
From: Dmitry Osipenko <digetx@gmail.com>
To: "Russell King" <linux@armlinux.org.uk>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Jonathan Hunter" <jonathanh@nvidia.com>,
	"Robert Yang" <decatf@gmail.com>,
	"Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 3/8] ARM: trusted_foundations: Provide information about whether firmware is registered
Date: Mon, 18 Feb 2019 03:17:21 +0300	[thread overview]
Message-ID: <20190218001726.16785-4-digetx@gmail.com> (raw)
In-Reply-To: <20190218001726.16785-1-digetx@gmail.com>

Add a helper that provides information about whether Trusted Foundations
firmware operations have been registered.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 arch/arm/firmware/trusted_foundations.c    | 5 +++++
 arch/arm/include/asm/trusted_foundations.h | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/arch/arm/firmware/trusted_foundations.c b/arch/arm/firmware/trusted_foundations.c
index c496f4cc49cb..d795ed83a3cd 100644
--- a/arch/arm/firmware/trusted_foundations.c
+++ b/arch/arm/firmware/trusted_foundations.c
@@ -172,3 +172,8 @@ void of_register_trusted_foundations(void)
 		panic("Trusted Foundation: missing version-minor property\n");
 	register_trusted_foundations(&pdata);
 }
+
+bool trusted_foundations_registered(void)
+{
+	return firmware_ops == &trusted_foundations_ops;
+}
diff --git a/arch/arm/include/asm/trusted_foundations.h b/arch/arm/include/asm/trusted_foundations.h
index cdd48ab7d191..3f23fa493db6 100644
--- a/arch/arm/include/asm/trusted_foundations.h
+++ b/arch/arm/include/asm/trusted_foundations.h
@@ -31,6 +31,7 @@
 #include <linux/of.h>
 #include <linux/cpu.h>
 #include <linux/smp.h>
+#include <linux/types.h>
 
 #define TF_PM_MODE_LP0			0
 #define TF_PM_MODE_LP1			1
@@ -47,6 +48,7 @@ struct trusted_foundations_platform_data {
 
 void register_trusted_foundations(struct trusted_foundations_platform_data *pd);
 void of_register_trusted_foundations(void);
+bool trusted_foundations_registered(void);
 
 #else /* CONFIG_TRUSTED_FOUNDATIONS */
 
@@ -74,6 +76,11 @@ static inline void of_register_trusted_foundations(void)
 	if (of_find_compatible_node(NULL, NULL, "tlm,trusted-foundations"))
 		register_trusted_foundations(NULL);
 }
+
+static inline bool trusted_foundations_registered(void)
+{
+	return false;
+}
 #endif /* CONFIG_TRUSTED_FOUNDATIONS */
 
 #endif
-- 
2.20.1


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  parent reply	other threads:[~2019-02-18  0:17 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-18  0:17 [PATCH v4 0/8] Support Trusted Foundations firmware on Tegra30 Dmitry Osipenko
2019-02-18  0:17 ` Dmitry Osipenko
2019-02-18  0:17 ` [PATCH v4 1/8] ARM: trusted_foundations: Implement L2 cache initialization callback Dmitry Osipenko
2019-02-18  0:17   ` Dmitry Osipenko
2019-02-18  0:17 ` [PATCH v4 2/8] ARM: trusted_foundations: Make prepare_idle call to take mode argument Dmitry Osipenko
2019-02-18  0:17   ` Dmitry Osipenko
2019-02-18  0:17 ` Dmitry Osipenko [this message]
2019-02-18  0:17   ` [PATCH v4 3/8] ARM: trusted_foundations: Provide information about whether firmware is registered Dmitry Osipenko
2019-02-18  0:17 ` [PATCH v4 4/8] ARM: tegra: Set up L2 cache using Trusted Foundations firmware Dmitry Osipenko
2019-02-18  0:17   ` Dmitry Osipenko
2019-02-18  0:17 ` [PATCH v4 5/8] ARM: tegra: Don't apply CPU erratas in insecure mode Dmitry Osipenko
2019-02-18  0:17   ` Dmitry Osipenko
2019-02-18  0:17 ` [PATCH v4 6/8] ARM: tegra: Always boot CPU in ARM-mode Dmitry Osipenko
2019-02-18  0:17   ` Dmitry Osipenko
2019-02-18  0:17 ` [PATCH v4 7/8] ARM: tegra: Support L2 cache maintenance done via firmware Dmitry Osipenko
2019-02-18  0:17   ` Dmitry Osipenko
2019-02-18  0:17 ` [PATCH v4 8/8] ARM: tegra: Add firmware calls required for suspend-resume Dmitry Osipenko
2019-02-18  0:17   ` Dmitry Osipenko
2019-02-18  8:51 ` [PATCH v4 0/8] Support Trusted Foundations firmware on Tegra30 Thierry Reding
2019-02-18  8:51   ` Thierry Reding
2019-02-20 13:30 ` Dmitry Osipenko
2019-02-20 13:30   ` Dmitry Osipenko
2019-02-20 16:36   ` Michał Mirosław
2019-02-20 16:36     ` Michał Mirosław
2019-02-20 17:01     ` Dmitry Osipenko
2019-02-20 17:01       ` Dmitry Osipenko

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