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 664d69d29336cd85079c5c5216e0e11eb6c61243..0d7c815b541cfcb61b7050aeeea5656937ae6cd3 100644 (file)
--- a/lunaix-os/includes/arch/x86/interrupts.h
+++ b/lunaix-os/includes/arch/x86/interrupts.h
@@ -1,114 +1,52 @@
 #ifndef __LUNAIX_INTERRUPTS_H
 #define __LUNAIX_INTERRUPTS_H
 
-
-#define FAULT_DIVISION_ERROR            0
-#define FAULT_TRAP_DEBUG_EXCEPTION      1
-#define INT_NMI                         2
-#define TRAP_BREAKPOINT                 3
-#define TRAP_OVERFLOW                   4
-#define FAULT_BOUND_EXCEED              5
-#define FAULT_INVALID_OPCODE            6
-#define FAULT_NO_MATH_PROCESSOR         7
-#define ABORT_DOUBLE_FAULT              8
-#define FAULT_RESERVED_0                9
-#define FAULT_INVALID_TSS               10
-#define FAULT_SEG_NOT_PRESENT           11
-#define FAULT_STACK_SEG_FAULT           12
-#define FAULT_GENERAL_PROTECTION        13
-#define FAULT_PAGE_FAULT                14
-#define FAULT_RESERVED_1                15
-#define FAULT_X87_FAULT                 16
-#define FAULT_ALIGNMENT_CHECK           17
-#define ABORT_MACHINE_CHECK             18
-#define FAULT_SIMD_FP_EXCEPTION         19
-#define FAULT_VIRTUALIZATION_EXCEPTION  20
-#define FAULT_CONTROL_PROTECTION        21
-
-// LunaixOS related
-#define LUNAIX_SYS_PANIC                32
-
-#define EX_INTERRUPT_BEGIN              200
-
-// Keyboard
-#define PC_KBD_IV                       201
-
-#define RTC_TIMER_IV                    210
-
-// 来自APIC的中断有着最高的优先级。
-// APIC related
-#define APIC_ERROR_IV                   250
-#define APIC_LINT0_IV                   251
-#define APIC_SPIV_IV                    252
-#define APIC_TIMER_IV                   253
-
-#define PC_AT_IRQ_RTC                   8
-#define PC_AT_IRQ_KBD                   1
+#include "vectors.h"
 
 #ifndef __ASM__
 #include <hal/cpu.h>
-typedef struct {
-    gp_regs registers;
-    unsigned int vector;
-    unsigned int err_code;
-    unsigned int eip;
-    unsigned int cs;
-    unsigned int eflags;
-    unsigned int esp;
-    unsigned int ss;
-} __attribute__((packed)) isr_param;
-
-typedef void (*int_subscriber)(isr_param*);
-
-#pragma region ISR_DECLARATION
-
-#define ISR(iv) void _asm_isr##iv();
 
-ISR(0)
-ISR(1)
-ISR(2)
-ISR(3)
-ISR(4)
-ISR(5)
-ISR(6)
-ISR(7)
-ISR(8)
-ISR(9)
-ISR(10)
-ISR(11)
-ISR(12)
-ISR(13)
-ISR(14)
-ISR(15)
-ISR(16)
-ISR(17)
-ISR(18)
-ISR(19)
-ISR(20)
-ISR(21)
-
-ISR(32)
-
-ISR(201)
-
-ISR(210)
-
-ISR(250)
-ISR(251)
-ISR(252)
-ISR(253)
-ISR(254)
-
-#pragma endregion
-
-void
-intr_subscribe(const uint8_t vector, int_subscriber);
-
-void
-intr_unsubscribe(const uint8_t vector, int_subscriber);
+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;
 
-void
-intr_set_fallback_handler(int_subscriber);
+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
 intr_handler(isr_param* param);