tee: optee: making OPTEE_SHM_NUM_PRIV_PAGES configurable via Kconfig

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>

diff --git a/drivers/tee/optee/Kconfig b/drivers/tee/optee/Kconfig
index 0126de898036cdb6eacb51cc672232b7de9060d7..3c59e19029befd7ad0070db571de0b4b8271dfdb 100644 (file)
--- 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 e5fd5ed217dac9562bb7ccf10c2ac96053d7a991..e1aafe842d660bb11b1146133105f37bff24873e 100644 (file)
--- 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