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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 v10 3/7] ARM: trusted_foundations: Provide information about whether firmware is registered
Date: Mon, 18 Mar 2019 01:52:06 +0300	[thread overview]
Message-ID: <20190317225211.23091-4-digetx@gmail.com> (raw)
In-Reply-To: <20190317225211.23091-1-digetx@gmail.com>

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

Tested-by: Robert Yang <decatf@gmail.com>
Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
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 720904a43c00..bb2ee73d9e02 100644
--- a/arch/arm/firmware/trusted_foundations.c
+++ b/arch/arm/firmware/trusted_foundations.c
@@ -167,3 +167,8 @@ 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 201ceb259e71..54513c533811 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>
 
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/outercache.h>
@@ -50,6 +51,7 @@ 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 */
 static inline void tf_dummy_write_sec(unsigned long val, unsigned int reg)
@@ -84,6 +86,11 @@ 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 v10 3/7] ARM: trusted_foundations: Provide information about whether firmware is registered
Date: Mon, 18 Mar 2019 01:52:06 +0300	[thread overview]
Message-ID: <20190317225211.23091-4-digetx@gmail.com> (raw)
In-Reply-To: <20190317225211.23091-1-digetx@gmail.com>

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

Tested-by: Robert Yang <decatf@gmail.com>
Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
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 720904a43c00..bb2ee73d9e02 100644
--- a/arch/arm/firmware/trusted_foundations.c
+++ b/arch/arm/firmware/trusted_foundations.c
@@ -167,3 +167,8 @@ 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 201ceb259e71..54513c533811 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>
 
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/outercache.h>
@@ -50,6 +51,7 @@ 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 */
 static inline void tf_dummy_write_sec(unsigned long val, unsigned int reg)
@@ -84,6 +86,11 @@ 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:[~2019-03-17 22:52 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-17 22:52 [PATCH v10 0/7] Support Trusted Foundations firmware on Tegra30 Dmitry Osipenko
2019-03-17 22:52 ` Dmitry Osipenko
2019-03-17 22:52 ` [PATCH v10 1/7] ARM: trusted_foundations: Support L2 cache maintenance Dmitry Osipenko
2019-03-17 22:52   ` Dmitry Osipenko
2019-03-17 22:52 ` [PATCH v10 2/7] ARM: trusted_foundations: Make prepare_idle call to take mode argument Dmitry Osipenko
2019-03-17 22:52   ` Dmitry Osipenko
2019-03-17 22:52 ` Dmitry Osipenko [this message]
2019-03-17 22:52   ` [PATCH v10 3/7] ARM: trusted_foundations: Provide information about whether firmware is registered Dmitry Osipenko
2019-03-17 22:52 ` [PATCH v10 4/7] ARM: tegra: Set up L2 cache using Trusted Foundations firmware Dmitry Osipenko
2019-03-17 22:52   ` Dmitry Osipenko
2019-03-17 22:52 ` [PATCH v10 5/7] ARM: tegra: Don't apply CPU erratas in insecure mode Dmitry Osipenko
2019-03-17 22:52   ` Dmitry Osipenko
2019-03-17 22:52 ` [PATCH v10 6/7] ARM: tegra: Always boot CPU in ARM-mode Dmitry Osipenko
2019-03-17 22:52   ` Dmitry Osipenko
2019-03-17 22:52 ` [PATCH v10 7/7] ARM: tegra: Add firmware calls required for suspend-resume on Tegra30 Dmitry Osipenko
2019-03-17 22:52   ` Dmitry Osipenko
2019-04-03 10:43 ` [PATCH v10 0/7] Support Trusted Foundations firmware " Dmitry Osipenko
2019-04-03 10:43   ` Dmitry Osipenko
2019-04-09 14:42 ` Thierry Reding
2019-04-09 14:42   ` Thierry Reding

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