Changeset 1f12fab in mainline for kernel/arch/sparc32/include/arch/arch.h

Timestamp:

2013-10-07T20:00:34Z (11 years ago)

Author:

Jakub Klama <jakub.klama@…>

Branches:

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

Children:

a73ebf0

Parents:

80d9d83

Message:

First attempt to implement preemptive trap handlers
and switch to userspace. Preemptive traps are needed
for at least page faults, as page fault handling code
can trigger window underflow/overflow exceptions.

This commit also introduces userspace window buffer
for saving userspace register windows (just as in
sparc64).

These changes are unfinished and far from working
correctly.

File:

• kernel/arch/sparc32/include/arch/arch.h (modified) (2 diffs)

kernel/arch/sparc32/include/arch/arch.h

@@ -41 +41 @@
 #include <typedefs.h>
 
+#define NWINDOWS        8
+
 /* ASI assignments: */
 #define ASI_CACHEMISS   0x01
@@ -63 +65 @@
 } bootinfo_t;
 
-void arch_pre_main(bootinfo_t *bootinfo);
+extern uintptr_t kernel_sp;
+extern uintptr_t uspace_wbuf;
+
+extern void arch_pre_main(void *unused, bootinfo_t *bootinfo);
 
 #endif