From: Sudeep Holla <sudeep.holla@arm.com>
To: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, op-tee@lists.trustedfirmware.org
Cc: Sudeep Holla <sudeep.holla@arm.com>,
Marc Bonnici <marc.bonnici@arm.com>,
Achin Gupta <achin.gupta@arm.com>,
Jens Wiklander <jens.wiklander@linaro.org>,
Valentin Laurent <valentin.laurent@trustonic.com>,
Lukas Hanel <lukas.hanel@trustonic.com>,
Coboy Chen <coboy.chen@mediatek.com>
Subject: [PATCH v2 09/10] firmware: arm_ffa: Set up 32bit execution mode flag using partiion property
Date: Fri, 2 Sep 2022 13:40:31 +0100 [thread overview]
Message-ID: <20220902124032.788488-10-sudeep.holla@arm.com> (raw)
In-Reply-To: <20220902124032.788488-1-sudeep.holla@arm.com>
FF-A v1.1 adds a flag in the partition properties to indicate if the
partition runs in the AArch32 or AArch64 execution state. Use the same
to set-up the 32-bit execution flag mode in the ffa_dev automatically
and ignore any requests to do the same from the ffa_driver.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
drivers/firmware/arm_ffa/driver.c | 13 ++++++++++++-
include/linux/arm_ffa.h | 2 ++
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index dd6ab2f81580..dbbe15592173 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -647,11 +647,19 @@ static int ffa_partition_info_get(const char *uuid_str,
return 0;
}
-static void ffa_mode_32bit_set(struct ffa_device *dev)
+static void _ffa_mode_32bit_set(struct ffa_device *dev)
{
dev->mode_32bit = true;
}
+static void ffa_mode_32bit_set(struct ffa_device *dev)
+{
+ if (drv_info->version > FFA_VERSION_1_0)
+ return;
+
+ _ffa_mode_32bit_set(dev);
+}
+
static int ffa_sync_send_receive(struct ffa_device *dev,
struct ffa_send_direct_data *data)
{
@@ -743,6 +751,9 @@ static void ffa_setup_partitions(void)
__func__, tpbuf->id);
continue;
}
+
+ if (tpbuf->properties & FFA_PARTITION_AARCH64_EXEC)
+ _ffa_mode_32bit_set(ffa_dev);
}
kfree(pbuf);
}
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index 09567ffd1f49..5964b6104996 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -106,6 +106,8 @@ struct ffa_partition_info {
#define FFA_PARTITION_DIRECT_SEND BIT(1)
/* partition can send and receive indirect messages. */
#define FFA_PARTITION_INDIRECT_MSG BIT(2)
+/* partition runs in the AArch64 execution state. */
+#define FFA_PARTITION_AARCH64_EXEC BIT(8)
u32 properties;
u32 uuid[4];
};
--
2.37.3
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WARNING: multiple messages have this Message-ID (diff)
From: Sudeep Holla <sudeep.holla@arm.com>
To: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, op-tee@lists.trustedfirmware.org
Cc: Sudeep Holla <sudeep.holla@arm.com>,
Marc Bonnici <marc.bonnici@arm.com>,
Achin Gupta <achin.gupta@arm.com>,
Jens Wiklander <jens.wiklander@linaro.org>,
Valentin Laurent <valentin.laurent@trustonic.com>,
Lukas Hanel <lukas.hanel@trustonic.com>,
Coboy Chen <coboy.chen@mediatek.com>
Subject: [PATCH v2 09/10] firmware: arm_ffa: Set up 32bit execution mode flag using partiion property
Date: Fri, 2 Sep 2022 13:40:31 +0100 [thread overview]
Message-ID: <20220902124032.788488-10-sudeep.holla@arm.com> (raw)
In-Reply-To: <20220902124032.788488-1-sudeep.holla@arm.com>
FF-A v1.1 adds a flag in the partition properties to indicate if the
partition runs in the AArch32 or AArch64 execution state. Use the same
to set-up the 32-bit execution flag mode in the ffa_dev automatically
and ignore any requests to do the same from the ffa_driver.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
drivers/firmware/arm_ffa/driver.c | 13 ++++++++++++-
include/linux/arm_ffa.h | 2 ++
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index dd6ab2f81580..dbbe15592173 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -647,11 +647,19 @@ static int ffa_partition_info_get(const char *uuid_str,
return 0;
}
-static void ffa_mode_32bit_set(struct ffa_device *dev)
+static void _ffa_mode_32bit_set(struct ffa_device *dev)
{
dev->mode_32bit = true;
}
+static void ffa_mode_32bit_set(struct ffa_device *dev)
+{
+ if (drv_info->version > FFA_VERSION_1_0)
+ return;
+
+ _ffa_mode_32bit_set(dev);
+}
+
static int ffa_sync_send_receive(struct ffa_device *dev,
struct ffa_send_direct_data *data)
{
@@ -743,6 +751,9 @@ static void ffa_setup_partitions(void)
__func__, tpbuf->id);
continue;
}
+
+ if (tpbuf->properties & FFA_PARTITION_AARCH64_EXEC)
+ _ffa_mode_32bit_set(ffa_dev);
}
kfree(pbuf);
}
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index 09567ffd1f49..5964b6104996 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -106,6 +106,8 @@ struct ffa_partition_info {
#define FFA_PARTITION_DIRECT_SEND BIT(1)
/* partition can send and receive indirect messages. */
#define FFA_PARTITION_INDIRECT_MSG BIT(2)
+/* partition runs in the AArch64 execution state. */
+#define FFA_PARTITION_AARCH64_EXEC BIT(8)
u32 properties;
u32 uuid[4];
};
--
2.37.3
next prev parent reply other threads:[~2022-09-02 12:43 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-02 12:40 [PATCH v2 00/10] firmware: arm_ffa: Refactoring and initial/minor v1.1 update Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla
2022-09-02 12:40 ` [PATCH v2 01/10] firmware: arm_ffa: Add pointer to the ffa_dev_ops in struct ffa_dev Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla
2022-09-02 12:40 ` [PATCH v2 02/10] tee: optee: Drop ffa_ops in optee_ffa structure using ffa_dev->ops directly Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla
2022-09-02 12:40 ` [PATCH v2 03/10] firmware: arm_ffa: Remove ffa_dev_ops_get() Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla
2022-09-02 12:40 ` [PATCH v2 04/10] firmware: arm_ffa: Add support for querying FF-A features Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla
2022-09-07 12:10 ` Jens Wiklander
2022-09-07 12:10 ` Jens Wiklander
2022-09-02 12:40 ` [PATCH v2 05/10] firmware: arm_ffa: Use FFA_FEATURES to detect if native versions are supported Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla
2022-09-02 12:40 ` [PATCH v2 06/10] firmware: arm_ffa: Make memory apis ffa_device independent Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla
2022-09-07 8:27 ` Jens Wiklander
2022-09-07 8:27 ` Jens Wiklander
2022-09-02 12:40 ` [PATCH v2 07/10] firmware: arm_ffa: Rename ffa_dev_ops as ffa_ops Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla
2022-09-05 7:20 ` Sumit Garg
2022-09-05 7:20 ` Sumit Garg
2022-09-07 8:29 ` Jens Wiklander
2022-09-07 8:29 ` Jens Wiklander
2022-09-02 12:40 ` [PATCH v2 08/10] firmware: arm_ffa: Add v1.1 get_partition_info support Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla
2022-09-07 8:38 ` Jens Wiklander
2022-09-07 8:38 ` Jens Wiklander
2022-09-07 11:04 ` Sudeep Holla
2022-09-07 11:04 ` Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla [this message]
2022-09-02 12:40 ` [PATCH v2 09/10] firmware: arm_ffa: Set up 32bit execution mode flag using partiion property Sudeep Holla
2022-09-07 9:01 ` Jens Wiklander
2022-09-07 9:01 ` Jens Wiklander
2022-09-07 11:01 ` Sudeep Holla
2022-09-07 11:01 ` Sudeep Holla
2022-09-02 12:40 ` [PATCH v2 10/10] firmware: arm_ffa: Split up ffa_ops into info, message and memory operations Sudeep Holla
2022-09-02 12:40 ` Sudeep Holla
2022-09-06 10:34 ` [PATCH v2 00/10] firmware: arm_ffa: Refactoring and initial/minor v1.1 update Sudeep Holla
2022-09-06 10:34 ` Sudeep Holla
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