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Rev 3500 Rev 3908
Line 39... Line 39...
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IOAPIC_ID               equ  0x0
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IOAPIC_ID       equ 0x0
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IOAPIC_VER              equ  0x1
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IOAPIC_VER      equ 0x1
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IOAPIC_ARB              equ  0x2
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IOAPIC_ARB      equ 0x2
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IOAPIC_REDTBL           equ  0x10
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IOAPIC_REDTBL   equ 0x10
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IPI_INIT                equ  (0x5 shl 8)
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IPI_START               equ  (0x6 shl 8)
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IPI_LEVEL_ASSERT        equ  (0x1 shl 14)
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SHORTHAND_ALL_EXCL      equ  (0x3 shl 18)
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CMD_IPI_INIT            equ  (IPI_INIT+SHORTHAND_ALL_EXCL)
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align 4
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align 4
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APIC_init:
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APIC_init:
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        mov     [irq_mode], IRQ_PIC
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        mov     [irq_mode], IRQ_PIC
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        xor     ecx, ecx
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        xor     ecx, ecx
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        mov     eax, IOAPIC_REDTBL
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        mov     eax, IOAPIC_REDTBL
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@@:
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@@:
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        mov     ebx, eax
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        mov     ebx, eax
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        call    IOAPIC_read
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        call    IOAPIC_read
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        mov     ah, 0x09; Delivery Mode: Lowest Priority, Destination Mode: Logical
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        mov     ah, 0x08; Delivery Mode: Fixed, Destination Mode: Logical
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        mov     al, cl
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        mov     al, cl
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        add     al, 0x20; vector
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        add     al, 0x20; vector
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        or      eax, 0x10000; Mask Interrupt
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        or      eax, 0x10000; Mask Interrupt
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        cmp     ecx, 16
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        cmp     ecx, 16
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        jb      .set
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        jb      .set
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        or      eax, 0x10000; bit 16
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        or      eax, 0x10000; bit 16
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        mov     [esi + APIC_LVT_err], eax
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        mov     [esi + APIC_LVT_err], eax
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	; LAPIC timer
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        ; LAPIC timer
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	; pre init
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        ; pre init
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;        mov     dword[esi + APIC_timer_div], 1011b; 1
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        mov     dword[esi + APIC_timer_div], 1011b; 1
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;        mov     dword[esi + APIC_timer_init], 0xffffffff; max val
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        mov     dword[esi + APIC_timer_init], 0xffffffff; max val
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;        push  esi
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        push    esi
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;        mov esi, 640        ; wait 0.64 sec
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        mov     esi, 640    ; wait 0.64 sec
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;        call  delay_ms
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        call    delay_ms
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;        pop esi
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        pop     esi
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;        mov     eax, [esi + APIC_timer_cur]; read current tick couner
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        mov     eax, [esi + APIC_timer_cur]; read current tick couner
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;        xor eax, 0xffffffff       ; eax = 0xffffffff - eax
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        xor     eax, 0xffffffff   ; eax = 0xffffffff - eax
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;        shr eax, 6          ; eax /= 64; APIC ticks per 0.01 sec
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        shr     eax, 6      ; eax /= 64; APIC ticks per 0.01 sec
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	; Start (every 0.01 sec)
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        ; Start (every 0.01 sec)
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;        mov     dword[esi + APIC_LVT_timer], 0x30020; periodic int 0x20
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        mov     dword[esi + APIC_LVT_timer], 0x30020; periodic int 0x20
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;        mov dword[esi + APIC_timer_init], eax
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        mov     dword[esi + APIC_timer_init], eax
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.done:
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.done:
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.fail:
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.fail:
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        pop ebp
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        pop     ebp
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        ret
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        ret
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if 0
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align 4
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start_ap:
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;eax= cpu id
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;        xchg bx, bx
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        test    eax, eax              ;do not start self
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        jz      .exit
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        cmp     eax, [cpu_count]
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        jae     .exit
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        mov     eax, [smpt+eax*4]
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        shl     eax, 24
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        mov     [esi+APIC_ICRH], eax
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        mov     [esi+APIC_ICRL], dword (IPI_INIT+IPI_LEVEL_ASSERT)
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        mov     ecx, 10000
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@@:
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        loop    @B
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CMD_IPI_START equ (IPI_START+IPI_LEVEL_ASSERT)+((0x10000+__ap_start_16) shr 12)
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        mov     [esi+APIC_ICRH], eax
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        mov     [esi+APIC_ICRL], dword CMD_IPI_START
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.exit:
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        ret
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 -