drivers: hwspinlock: remove syscall support

HW spinlocks are not supposed to be used by user application. They are used
to protect shared resources between clusters. Consumer of such spinlocks
should be other drivers in kernel space.
Moreover, syscalls were actually not generated properly because of
a missing call to zephyr_syscall_header() in CMakeLists.txt.

Signed-off-by: Pierrick Guillaume <[email protected]>

Author: Fymyte

drivers/hwspinlock/CMakeLists.txt

@@ -3,4 +3,3 @@
 zephyr_library()
 
 zephyr_library_sources_ifdef(CONFIG_SQN_HWSPINLOCK sqn_hwspinlock.c)
-zephyr_library_sources_ifdef(CONFIG_USERSPACE hwspinlock_handlers.c)

drivers/hwspinlock/hwspinlock_handlers.c

@@ -77,9 +77,7 @@ __subsystem struct hwspinlock_driver_api {
  * @retval 0 If successful.
  * @retval -errno In case of any failure.
  */
-__syscall int hwspinlock_trylock(const struct device *dev, uint32_t id);
-
-static inline int z_impl_hwspinlock_trylock(const struct device *dev, uint32_t id)
+static inline int hwspinlock_trylock(const struct device *dev, uint32_t id)
 {
 	const struct hwspinlock_driver_api *api =
 		(const struct hwspinlock_driver_api *)dev->api;
@@ -100,9 +98,7 @@ static inline int z_impl_hwspinlock_trylock(const struct device *dev, uint32_t i
  * @param dev HW spinlock device instance.
  * @param id  Spinlock identifier.
  */
-__syscall void hwspinlock_lock(const struct device *dev, uint32_t id);
-
-static inline void z_impl_hwspinlock_lock(const struct device *dev, uint32_t id)
+static inline void hwspinlock_lock(const struct device *dev, uint32_t id)
 {
 	const struct hwspinlock_driver_api *api =
 		(const struct hwspinlock_driver_api *)dev->api;
@@ -121,9 +117,7 @@ static inline void z_impl_hwspinlock_lock(const struct device *dev, uint32_t id)
  * @param dev HW spinlock device instance.
  * @param id  Spinlock identifier.
  */
-__syscall void hwspinlock_unlock(const struct device *dev, uint32_t id);
-
-static inline void z_impl_hwspinlock_unlock(const struct device *dev, uint32_t id)
+static inline void hwspinlock_unlock(const struct device *dev, uint32_t id)
 {
 	const struct hwspinlock_driver_api *api =
 		(const struct hwspinlock_driver_api *)dev->api;
@@ -144,9 +138,7 @@ static inline void z_impl_hwspinlock_unlock(const struct device *dev, uint32_t i
  * @retval HW spinlock max ID.
  * @retval 0 if the function is not implemented by the driver.
  */
-__syscall uint32_t hwspinlock_get_max_id(const struct device *dev);
-
-static inline uint32_t z_impl_hwspinlock_get_max_id(const struct device *dev)
+static inline uint32_t hwspinlock_get_max_id(const struct device *dev)
 {
 	const struct hwspinlock_driver_api *api =
 		(const struct hwspinlock_driver_api *)dev->api;
@@ -164,6 +156,4 @@ static inline uint32_t z_impl_hwspinlock_get_max_id(const struct device *dev)
 
 /** @} */
 
-#include <zephyr/syscalls/hwspinlock.h>
-
 #endif /* ZEPHYR_INCLUDE_DRIVERS_HWSPINLOCK_H_ */