Changeset ed166f7 in mainline for kernel/arch/sparc64/src/proc/scheduler.c

Timestamp:

2006-08-31T18:53:14Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

6767c1d

Parents:

e0b241f

Message:

A lot of untested sparc64 stuff:

• Write ASID to hardware when a thread is about to run in userspace.
• Add userspace() and switch_to_userspace() functions.
• Handle special cases when the userspace spill/fill handler causes MMU trap.
• Resolve some TODOs in the existing sparc64 code.
• sparc64 has now C99 compliant header guards.
• Formatting and indentation fixes.

File:

• kernel/arch/sparc64/src/proc/scheduler.c (modified) (1 diff)

kernel/arch/sparc64/src/proc/scheduler.c

@@ -92 +92 @@
                  * in the userspace window buffer to %g7 in the alternate and interrupt sets.
                  */
-                write_to_ig_g6((uintptr_t) THREAD->kstack + STACK_SIZE - STACK_BIAS);
-                write_to_ag_g6((uintptr_t) THREAD->kstack + STACK_SIZE - STACK_BIAS);
+                uint64_t sp = (uintptr_t) THREAD->kstack + STACK_SIZE
+                        - (STACK_BIAS + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT));
+                write_to_ig_g6(sp);
+                write_to_ag_g6(sp);
                 write_to_ag_g7((uintptr_t) THREAD->arch.uspace_window_buffer);
         }