1 files changed, 161 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/syslink/gatehwspinlock.h b/arch/arm/plat-omap/include/syslink/gatehwspinlock.h
new file mode 100644
index 00000000000..209d12bdd6b
--- /dev/null
+++ b/arch/arm/plat-omap/include/syslink/gatehwspinlock.h
@@ -0,0 +1,161 @@
+/*
+ *  gatehwspinlock.h
+ *
+ *  Defines for gatehwspinlock.
+ *
+ *  Copyright(C) 2009 Texas Instruments, Inc.
+ *
+ *  This package is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ *  IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ *  WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ *  PURPOSE.
+ */
+
+
+#ifndef GATEHWSPINLOCK_H_
+#define GATEHWSPINLOCK_H_
+
+/* Module headers */
+#include <multiproc.h>
+#include <gatemp.h>
+#include <igatempsupport.h>
+#include <sharedregion.h>
+
+/* Unique module ID. */
+#define GATEHWSPINLOCK_MODULEID			(0xF416)
+
+/* =============================================================================
+ * Module Success and Failure codes
+ * =============================================================================
+ */
+/* Argument passed to a function is invalid. */
+#define GATEHWSPINLOCK_E_INVALIDARG       -1
+
+/* Memory allocation failed. */
+#define GATEHWSPINLOCK_E_MEMORY           -2
+
+/* the name is already registered or not. */
+#define GATEHWSPINLOCK_E_BUSY             -3
+
+/* Generic failure. */
+#define GATEHWSPINLOCK_E_FAIL             -4
+
+/* name not found in the nameserver. */
+#define GATEHWSPINLOCK_E_NOTFOUND         -5
+
+/* Module is not initialized. */
+#define GATEHWSPINLOCK_E_INVALIDSTATE     -6
+
+/* Instance is not created on this processor. */
+#define GATEHWSPINLOCK_E_NOTONWER         -7
+
+/* Remote opener of the instance has not closed the instance. */
+#define GATEHWSPINLOCK_E_REMOTEACTIVE     -8
+
+/* Indicates that the instance is in use. */
+#define GATEHWSPINLOCK_E_INUSE            -9
+
+/* Failure in OS call. */
+#define GATEHWSPINLOCK_E_OSFAILURE        -10
+
+/* Version mismatch error. */
+#define GATEHWSPINLOCK_E_VERSION          -11
+
+/* Operation successful. */
+#define GATEHWSPINLOCK_S_SUCCESS            0
+
+/* The GATEHWSPINLOCK module has already been setup in this process. */
+#define GATEHWSPINLOCK_S_ALREADYSETUP     1
+
+
+/* =============================================================================
+ * Macros
+ * =============================================================================
+ */
+
+/* Q_BLOCKING */
+#define GATEHWSEM_Q_BLOCKING   (1)
+
+/* Q_PREEMPTING */
+#define GATEHWSEM_Q_PREEMPTING (2)
+
+
+/* =============================================================================
+ * Enums & Structures
+ * =============================================================================
+ */
+
+/* Structure defining config parameters for the gatehwspinlock module. */
+struct gatehwspinlock_config {
+	enum gatemp_local_protect default_protection;
+	/* Default module-wide local context protection level. The level of
+	 * protection specified here determines which local gate is created
+	 * per gatehwspinlock instance for local protection during create.
+	 * The instance configuration parameter may be used to override this
+	 * module setting per instance.  The configuration used here should
+	 * reflect both the context in which enter and leave are to be called,
+	 * as well as the maximum level protection needed locally.
+	 */
+	u32 base_addr;
+	/* Device-specific base address for HW Semaphore subsystem in HOST OS
+	 * address space, this is updated in Ipc module */
+	u32 num_locks;
+	/* Device-specific number of semphores in the HW Semaphore subsystem */
+};
+
+/* Structure defining config parameters for the gatehwspinlock instances. */
+struct gatehwspinlock_params {
+	IGATEMPSUPPORT_SUPERPARAMS;
+};
+
+
+/* Inherit everything from IGateMPSupport */
+IGATEMPSUPPORT_INHERIT(gatehwspinlock);
+
+
+/* =============================================================================
+ * APIs
+ * =============================================================================
+ */
+/* Function to get the default configuration for the gatehwspinlock module. */
+void gatehwspinlock_get_config(struct gatehwspinlock_config *config);
+
+/* Function to setup the gatehwspinlock module. */
+int gatehwspinlock_setup(const struct gatehwspinlock_config *config);
+
+/* Function to destroy the gatehwspinlock module */
+int gatehwspinlock_destroy(void);
+
+/* Get the default parameters for the gatehwspinlock instance. */
+void gatehwspinlock_params_init(struct gatehwspinlock_params *params);
+
+/* Function to create an instance of gatehwspinlock */
+void *gatehwspinlock_create(enum igatempsupport_local_protect local_protect,
+				const struct gatehwspinlock_params *params);
+
+/* Function to delete an instance of gatehwspinlock */
+int gatehwspinlock_delete(void **handle_ptr);
+
+/* Function to enter the gatehwspinlock instance */
+int *gatehwspinlock_enter(void *handle);
+
+/* Function to leave the gatehwspinlock instance */
+void gatehwspinlock_leave(void *handle, int *key);
+
+/* Function to return the shared memory requirement for a single instance */
+u32 gatehwspinlock_shared_mem_req(const struct gatehwspinlock_params *params);
+
+/* Function to return the number of instances configured in the module. */
+u32 gatehwspinlock_get_num_instances(void);
+
+/* Function to return the number of instances not controlled by GateMP. */
+u32 gatehwspinlock_get_num_reserved(void);
+
+/* Function to initialize the locks module. */
+void gatehwspinlock_locks_init(void);
+
+#endif /* ifndef GATEHWSPINLOCK_H_ */