Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 31 insertions, 0 deletions

diff --git a/roms/openbios/arch/sparc32/context.h b/roms/openbios/arch/sparc32/context.h
new file mode 100644
index 000000000..ef454d02b
--- /dev/null
+++ b/roms/openbios/arch/sparc32/context.h
@@ -0,0 +1,31 @@
+#ifndef SPARC32_CONTEXT_H
+#define SPARC32_CONTEXT_H
+
+struct context {
+    /* General registers */
+    uint32_t regs[148];
+    uint32_t pc;
+    uint32_t npc;
+#define REG_O0 12
+#define REG_SP 18
+#define SP_LOC(ctx) (&(ctx)->regs[REG_SP])
+    /* Flags */
+    /* Optional stack contents */
+    uint32_t return_addr;
+    uint32_t param[0];
+};
+
+/* Create a new context in the given stack */
+struct context *
+init_context(uint8_t *stack, uint32_t stack_size, int num_param);
+
+/* Switch context */
+struct context *switch_to(struct context *);
+
+/* Holds physical address of boot context */
+extern unsigned long __boot_ctx;
+
+/* This can always be safely used to refer to the boot context */
+#define boot_ctx ((struct context *) phys_to_virt(__boot_ctx))
+
+#endif /* SPARC32_CONTEXT_H */