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 2c93c3901be393c9aa97437a6fe727feb82bdb10..0d7c815b541cfcb61b7050aeeea5656937ae6cd3 100644 (file)
--- a/lunaix-os/includes/arch/x86/interrupts.h
+++ b/lunaix-os/includes/arch/x86/interrupts.h
@@ -1,162 +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
-// APIC related
-#define APIC_ERROR_IV                   200
-#define APIC_LINT0_IV                   201
-#define APIC_TIMER_IV                   202
-#define APIC_SPIV_IV                    203
-
-// Keyboard
-#define PC_KBD_IV                       204
-
-#define RTC_TIMER_IV                    210
-
-
-#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
-void
-_asm_isr0();
-
-void
-_asm_isr1();
-
-void
-_asm_isr2();
-
-void
-_asm_isr3();
-
-void
-_asm_isr4();
-
-void
-_asm_isr5();
-
-void
-_asm_isr6();
-
-void
-_asm_isr7();
-
-void
-_asm_isr8();
-
-void
-_asm_isr9();
-
-void
-_asm_isr10();
-
-void
-_asm_isr11();
-
-void
-_asm_isr12();
-
-void
-_asm_isr13();
 
-void
-_asm_isr14();
-
-void
-_asm_isr15();
-
-void
-_asm_isr16();
-
-void
-_asm_isr17();
-
-void
-_asm_isr18();
-
-void
-_asm_isr19();
-
-void
-_asm_isr20();
-
-void
-_asm_isr21();
-
-void
-_asm_isr32();
-
-void
-_asm_isr200();
-
-void
-_asm_isr201();
-
-void
-_asm_isr202();
-
-void
-_asm_isr203();
-
-void
-_asm_isr204();
-
-void
-_asm_isr210();
-
-#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);