refactor: Optimize the context switch overhead

[lunaix-os.git] / lunaix-os / includes / arch / x86 / interrupts.h

diff --git a/lunaix-os/includes/arch/x86/interrupts.h b/lunaix-os/includes/arch/x86/interrupts.h
index b608cd6217a2f22d028746ac42ecaf0c2f637148..0d7c815b541cfcb61b7050aeeea5656937ae6cd3 100644 (file)
--- a/lunaix-os/includes/arch/x86/interrupts.h
+++ b/lunaix-os/includes/arch/x86/interrupts.h
@@ -1,20 +1,59 @@
 #ifndef __LUNAIX_INTERRUPTS_H
 #define __LUNAIX_INTERRUPTS_H
 
-typedef struct {
-    unsigned int vector;
-    unsigned int err_code;
-    unsigned int eip;
-    unsigned int cs;
-    unsigned int eflags;
-    unsigned int esp;
-    unsigned int ss;
+#include "vectors.h"
+
+#ifndef __ASM__
+#include <hal/cpu.h>
+
+struct exec_param;
+
+struct regcontext
+{
+    reg32 eax;
+    reg32 ebx;
+    reg32 ecx;
+    reg32 edx;
+    reg32 edi;
+    reg32 ebp;
+    reg32 esi;
+    reg32 ds;
+    reg32 es;
+    reg32 fs;
+    reg32 gs;
+} __attribute__((packed));
+
+typedef struct
+{
+    unsigned int depth;
+    struct regcontext registers;
+    union
+    {
+        reg32 esp;
+        volatile struct exec_param* execp;
+    };
 } __attribute__((packed)) isr_param;
 
+struct exec_param
+{
+    isr_param* saved_prev_ctx;
+    u32_t vector;
+    u32_t err_code;
+    u32_t eip;
+    u32_t cs;
+    u32_t eflags;
+    u32_t esp;
+    u32_t ss;
+} __attribute__((packed));
+
+#define ISR_PARAM_SIZE sizeof(isr_param)
+
 void
-_asm_isr0();
+intr_handler(isr_param* param);
 
 void
-interrupt_handler(isr_param* param);
+intr_routine_init();
+
+#endif
 
 #endif /* __LUNAIX_INTERRUPTS_H */