From: Sahil Malhotra <sahil.malhotra@nxp.com>
Date: Fri, 8 Jun 2018 12:38:13 +0530
Subject: tee: optee: making OPTEE_SHM_NUM_PRIV_PAGES configurable via Kconfig
Git-commit: 3249527f19d660c5adfb2b6f4ffd4ca0506b8755
Patch-mainline: v4.19-rc1
References: fate#325372
This change adds KCONFIG option to set number of pages out of
whole shared memory to be used for OP-TEE driver private data
structures.
Signed-off-by: Sahil Malhotra <sahil.malhotra@nxp.com>
[jw: fixing trivial merge conflict]
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
---
drivers/tee/optee/Kconfig | 8 ++++++++
drivers/tee/optee/core.c | 2 +-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/tee/optee/Kconfig b/drivers/tee/optee/Kconfig
index 0126de898036..3c59e19029be 100644
--- a/drivers/tee/optee/Kconfig
+++ b/drivers/tee/optee/Kconfig
@@ -5,3 +5,11 @@ config OPTEE
help
This implements the OP-TEE Trusted Execution Environment (TEE)
driver.
+
+config OPTEE_SHM_NUM_PRIV_PAGES
+ int "Private Shared Memory Pages"
+ default 1
+ depends on OPTEE
+ help
+ This sets the number of private shared memory pages to be
+ used by OP-TEE TEE driver.
diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c
index e5fd5ed217da..e1aafe842d66 100644
--- a/drivers/tee/optee/core.c
+++ b/drivers/tee/optee/core.c
@@ -32,7 +32,7 @@
#define DRIVER_NAME "optee"
-#define OPTEE_SHM_NUM_PRIV_PAGES 1
+#define OPTEE_SHM_NUM_PRIV_PAGES CONFIG_OPTEE_SHM_NUM_PRIV_PAGES
/**
* optee_from_msg_param() - convert from OPTEE_MSG parameters to
--
2.19.1