add asm headers and linker scripts for aarch64

[lunaix-os.git] / lunaix-os / arch / aarch64 / includes / asm / hart.h

diff --git a/lunaix-os/arch/aarch64/includes/asm/hart.h b/lunaix-os/arch/aarch64/includes/asm/hart.h
new file mode 100644 (file)
index 0000000..f9e7d0a
--- /dev/null
+++ b/lunaix-os/arch/aarch64/includes/asm/hart.h
@@ -0,0 +1,91 @@
+#ifndef __LUNAIX_ARCH_HART_H
+#define __LUNAIX_ARCH_HART_H
+
+#ifndef __ASM__
+#include <lunaix/types.h>
+
+struct hart_state;
+
+struct regcontext
+{
+    union {
+        reg_t x[32];
+        struct {
+            reg_t x[29];
+            reg_t fp;
+            reg_t lr;
+            reg_t sp;
+        };
+    };
+} compact;
+
+struct exec_param
+{
+    struct hart_state* parent_state;
+    reg_t vector;
+    reg_t syndrome;
+    reg_t elink;
+    reg_t sp;
+} compact;
+
+struct hart_state
+{
+    reg_t depth;
+    struct regcontext registers;
+    union
+    {
+        reg_t sp;
+        volatile struct exec_param* execp;
+    };
+} compact;
+
+static inline int
+hart_vector_stamp(struct hart_state* hstate) {
+    return hstate->execp->vector;
+}
+
+static inline unsigned int
+hart_ecause(struct hart_state* hstate) {
+    return hstate->execp->syndrome;
+}
+
+static inline struct hart_state*
+hart_parent_state(struct hart_state* hstate)
+{
+    return hstate->execp->parent_state;
+}
+
+static inline void
+hart_push_state(struct hart_state* p_hstate, struct hart_state* hstate)
+{
+    hstate->execp->parent_state = p_hstate;
+}
+
+static inline ptr_t
+hart_pc(struct hart_state* hstate)
+{
+    return hstate->execp->elink;
+}
+
+static inline ptr_t
+hart_sp(struct hart_state* hstate)
+{
+    return hstate->execp->sp;
+}
+
+static inline bool
+kernel_context(struct hart_state* hstate)
+{
+    // TODO
+    return false;
+}
+
+static inline ptr_t
+hart_stack_frame(struct hart_state* hstate)
+{
+    return hstate->registers.fp;
+}
+
+#endif
+
+#endif /* __LUNAIX_ARCH_HART_H */