Changeset 46fc2f9 in mainline for generic/src/ipc/sysipc.c

Timestamp:

2006-05-27T22:57:21Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

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

Children:

6212095

Parents:

00b595b

Message:

Added 256K slab, so that AMD can boot (until ELF loader is fixed).
Added AS_AREA_RECV so that the caller can receive AS_AREA.

File:

• generic/src/ipc/sysipc.c (modified) (3 diffs)

generic/src/ipc/sysipc.c

@@ -65 +65 @@
 static inline int is_forwardable(__native method)
 {
-        if (method == IPC_M_PHONE_HUNGUP || method == IPC_M_AS_AREA_SEND)
+        if (method == IPC_M_PHONE_HUNGUP || method == IPC_M_AS_AREA_SEND \
+            || method == IPC_M_AS_AREA_RECV)
                 return 0; /* This message is meant only for the receiver */
         return 1;
@@ -86 +87 @@
         if (IPC_GET_METHOD(call->data) == IPC_M_AS_AREA_SEND)
                 return 1;
-        return 0;
-}
-
-/** Interpret process answer as control information */
+        if (IPC_GET_METHOD(call->data) == IPC_M_AS_AREA_RECV)
+                return 1;
+        return 0;
+}
+
+/** Interpret process answer as control information
+ *
+ * This function is called directly after sys_ipc_answer 
+ */
 static inline int answer_preprocess(call_t *answer, ipc_data_t *olddata)
 {
@@ -140 +146 @@
                         
                         return as_area_share(as, IPC_GET_ARG1(*olddata), IPC_GET_ARG2(*olddata),
-                                IPC_GET_ARG1(answer->data), IPC_GET_ARG3(*olddata));
+                                             AS, IPC_GET_ARG1(answer->data), IPC_GET_ARG3(*olddata));
+                }
+        } else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_RECV) {
+                if (!IPC_GET_RETVAL(answer->data)) { 
+                        ipl_t ipl;
+                        as_t *as;
+                        
+                        ipl = interrupts_disable();
+                        spinlock_lock(&answer->sender->lock);
+                        as = answer->sender->as;
+                        spinlock_unlock(&answer->sender->lock);
+                        interrupts_restore(ipl);
+                        
+                        return as_area_share(AS, IPC_GET_ARG1(answer->data), IPC_GET_ARG2(*olddata),
+                                             as, IPC_GET_ARG1(*olddata), IPC_GET_ARG3(*olddata));
                 }
         }