Changeset b5e68c8 in mainline for kernel/generic/include/ipc/ipc.h

Timestamp:

2011-05-12T16:49:44Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

f36787d7

Parents:

e80329d6 (diff), 750636a (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge mainline changes.

File:

• kernel/generic/include/ipc/ipc.h (modified) (9 diffs)

kernel/generic/include/ipc/ipc.h

@@ -43 +43 @@
 #define IPC_CALL_LEN  6
 
-/** Maximum active async calls per thread */
-#ifdef CONFIG_DEBUG
-        #define IPC_MAX_ASYNC_CALLS  4
-#else
-        #define IPC_MAX_ASYNC_CALLS  4000
-#endif
+/** Maximum active async calls per phone */
+#define IPC_MAX_ASYNC_CALLS  4
 
 /* Flags for calls */
@@ -88 +84 @@
 /* Macros for manipulating calling data */
 #define IPC_SET_RETVAL(data, retval)  ((data).args[0] = (retval))
-#define IPC_SET_METHOD(data, val)     ((data).args[0] = (val))
+#define IPC_SET_IMETHOD(data, val)    ((data).args[0] = (val))
 #define IPC_SET_ARG1(data, val)       ((data).args[1] = (val))
 #define IPC_SET_ARG2(data, val)       ((data).args[2] = (val))
@@ -95 +91 @@
 #define IPC_SET_ARG5(data, val)       ((data).args[5] = (val))
 
-#define IPC_GET_METHOD(data)  ((data).args[0])
-#define IPC_GET_RETVAL(data)  ((data).args[0])
+#define IPC_GET_IMETHOD(data)  ((data).args[0])
+#define IPC_GET_RETVAL(data)   ((data).args[0])
 
 #define IPC_GET_ARG1(data)  ((data).args[1])
@@ -120 +116 @@
 #define IPC_FF_ROUTE_FROM_ME  (1 << 0)
 
+/* Data transfer flags. */
+#define IPC_XF_NONE             0
+
+/** Restrict the transfer size if necessary. */
+#define IPC_XF_RESTRICT         (1 << 0)
+
+/** Kernel IPC interfaces
+ *
+ */
+#define IPC_IF_KERNEL  0
+
 /** System-specific methods - only through special syscalls
- * These methods have special behaviour
+ *
+ * These methods have special behaviour. These methods also
+ * have the implicit kernel interface 0.
  *
  */
@@ -162 +171 @@
  *                       error is sent back to caller. Otherwise 
  *                       the call is accepted and the response is sent back.
- *                     - the allocated phoneid is passed to userspace 
+ *                     - the hash of the client task is passed to userspace
+ *                       (on the receiving side) as ARG4 of the call.
+ *                     - the hash of the allocated phone is passed to userspace
  *                       (on the receiving side) as ARG5 of the call.
  *
@@ -315 +326 @@
 
 typedef struct {
-        unative_t args[IPC_CALL_LEN];
+        sysarg_t args[IPC_CALL_LEN];
+        /** Task which made or forwarded the call with IPC_FF_ROUTE_FROM_ME. */
+        struct task *task;
+        /** Phone which made or last masqueraded this call. */
         phone_t *phone;
 } ipc_data_t;
@@ -330 +344 @@
          * The caller box is different from sender->answerbox
          * for synchronous calls.
-         *
          */
         answerbox_t *callerbox;
         
         /** Private data to internal IPC. */
-        unative_t priv;
+        sysarg_t priv;
         
         /** Data passed from/to userspace. */
@@ -347 +360 @@
          * cases, we must keep it aside so that the answer is processed
          * correctly.
-         *
          */
         phone_t *caller_phone;
@@ -372 +384 @@
 
 extern void ipc_cleanup(void);
-extern void ipc_backsend_err(phone_t *, call_t *, unative_t);
+extern void ipc_backsend_err(phone_t *, call_t *, sysarg_t);
 extern void ipc_answerbox_slam_phones(answerbox_t *, bool);
 extern void ipc_cleanup_call_list(link_t *);