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Rev 7734 Rev 8111
Line 9... Line 9...
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;;  See file COPYING for details.                               ;;
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;;  See file COPYING for details.                               ;;
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;;  Copyright 2003 Ville Turjanmaa                              ;;
 10 
;;  Copyright 2003 Ville Turjanmaa                              ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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 13 
 
14 
$Revision: 7734 $
 - 
 
15 
 
 - 
 
16 
; ACPI Generic Address Structure
 - 
 
17 
struct GAS
 - 
 
18 
        asid        db ? ; address space id
 - 
 
19 
        bit_width   db ?
 - 
 
20 
        bit_offset  db ?
 - 
 
21 
        access_size db ?
 - 
 
22 
        address     DQ ?
 - 
 
23 
ends
 - 
 
24 
 
 - 
 
25 
ASID.SYSTEM_MEMORY = 0
 - 
 
26 
ASID.SYSTEM_IO     = 1
 - 
 
27 
ASID.PCI_CONFIG    = 2
 - 
 
28 
ASID.PCI_EC        = 3
 - 
 
29 
ASID.PCI_SMBUS     = 4
 - 
 
30 
 
 - 
 
31 
ACCESS_SIZE.UNDEFINED = 0
 - 
 
32 
ACCESS_SIZE.BYTE      = 1
 - 
 
33 
ACCESS_SIZE.WORD      = 2
 - 
 
34 
ACCESS_SIZE.DWORD     = 3
 - 
 
Line 35... Line 14...
35 
ACCESS_SIZE.QWORD     = 4
 14 
$Revision: 8111 $
36 
 
 15 
 
Line 37... Line 16...
37 
align 4
 16 
align 4
38 
system_shutdown:          ; shut down the system
 17 
system_shutdown:          ; shut down the system
39 
 
 18 
 
40 
        cmp     byte [BOOT.shutdown_type], SYSTEM_SHUTDOWN
 19 
        cmp     [BOOT.shutdown_type], SYSTEM_SHUTDOWN
41 
        jb      @F
 20 
        jb      @F
42 
        cmp     byte [BOOT.shutdown_type], SYSTEM_RESTART
 21 
        cmp     [BOOT.shutdown_type], SYSTEM_RESTART
43 
        jbe     .valid
 22 
        jbe     .valid
44 
@@:
 23 
@@:
Line 81... Line 60...
81 
.no_shutdown_cpus:
 60 
.no_shutdown_cpus:
Line 82... Line 61...
82 
 
 61 
 
83 
        cli
 62 
        cli
Line 84... Line 63...
84 
        call    IRQ_mask_all
 63 
        call    IRQ_mask_all
85 
 
 64 
 
86 
        mov     eax, dword[BOOT.shutdown_type]
 65 
        movzx   eax, [BOOT.shutdown_type]
Line 87... Line 66...
87 
        cmp     al, SYSTEM_RESTART
 66 
        cmp     al, SYSTEM_RESTART
88 
        jne     @F
 67 
        jne     @F
Line 96... Line 75...
96 
        mov     esi, OS_BASE+restart_code_start ; move kernel re-starter to 0x5000:0
 75 
        mov     esi, OS_BASE+restart_code_start ; move kernel re-starter to 0x5000:0
97 
        mov     edi, OS_BASE+0x50000
 76 
        mov     edi, OS_BASE+0x50000
98 
        mov     ecx, (restart_code_end - restart_code_start)/4
 77 
        mov     ecx, (restart_code_end - restart_code_start)/4
99 
        rep movsd
 78 
        rep movsd
Line 100... Line -...
100 
 
 - 
 
101 
        call    create_trampoline_pgmap
 - 
 
102 
        mov     cr3, eax
 - 
 
103 
        jmp     @F
 - 
 
104 
org $-OS_BASE
 - 
 
105 
@@:
 - 
 
106 
 
 - 
 
107 
;disable paging
 - 
 
108 
 
 - 
 
109 
        mov     eax, cr0
 - 
 
110 
        and     eax, 0x7FFFFFFF
 - 
 
111 
        mov     cr0, eax
 - 
 
112 
        mov     eax, cr3
 - 
 
113 
        mov     cr3, eax
 - 
 
114 
 
 79 
 
115 
        cmp     byte [BOOT_LO.shutdown_type], SYSTEM_SHUTDOWN
 80 
        cmp     [BOOT.shutdown_type], SYSTEM_SHUTDOWN
Line 116... Line 81...
116 
        jne     no_acpi_power_off
 81 
        jne     not_power_off
Line 117... Line 82...
117 
 
 82 
 
- 
 
 83 
; system_power_off
- 
 
 84 
 
118 
; system_power_off
 85 
        mov     ebx, [acpi_fadt_base]
119 
 
 86 
        test    ebx, ebx
120 
        mov     ebx, [acpi_fadt_base-OS_BASE]
 87 
        jz      no_acpi
- 
 
 88 
        cmp     [ebx+ACPI_TABLE.Signature], 'FACP'
- 
 
 89 
        jne     no_acpi
121 
        cmp     dword [ebx], 'FACP'
 90 
        mov     esi, [acpi_ssdt_base]   ; first SSDT is DSDT
122 
        jne     no_acpi_power_off
 91 
        test    esi, esi
123 
        mov     esi, [acpi_dsdt_base-OS_BASE]
 92 
        jz      no_acpi
124 
        cmp     dword [esi], 'DSDT'
 93 
        cmp     [esi+ACPI_TABLE.Signature], 'DSDT'
125 
        jne     no_acpi_power_off
 94 
        jne     no_acpi
126 
        mov     eax, [esi+4] ; DSDT length
 95 
        mov     eax, [esi+ACPI_TABLE.Length]
127 
        sub     eax, 36+4
 96 
        sub     eax, 36+4
128 
        jbe     no_acpi_power_off
 97 
        jbe     no_acpi
129 
        add     esi, 36
 98 
        add     esi, 36
130 
.scan_dsdt:
 99 
.scan_dsdt:
Line 141... Line 110...
141 
        lea     esi, [esi+7]
 110 
        lea     esi, [esi+7]
142 
        xor     ecx, ecx
 111 
        xor     ecx, ecx
143 
        cmp     byte [esi], 0 ; 0 means zero byte, 0Ah xx means byte xx
 112 
        cmp     byte [esi], 0 ; 0 means zero byte, 0Ah xx means byte xx
144 
        jz      @f
 113 
        jz      @f
145 
        cmp     byte [esi], 0xA
 114 
        cmp     byte [esi], 0xA
146 
        jnz     no_acpi_power_off
 115 
        jnz     no_acpi
147 
        inc     esi
 116 
        inc     esi
148 
        mov     cl, [esi]
 117 
        mov     cl, [esi]
149 
@@:
 118 
@@:
150 
        inc     esi
 119 
        inc     esi
151 
        cmp     dl, 2
 120 
        cmp     dl, 2
152 
        jb      @f
 121 
        jb      @f
153 
        cmp     byte [esi], 0
 122 
        cmp     byte [esi], 0
154 
        jz      @f
 123 
        jz      @f
155 
        cmp     byte [esi], 0xA
 124 
        cmp     byte [esi], 0xA
156 
        jnz     no_acpi_power_off
 125 
        jnz     no_acpi
157 
        inc     esi
 126 
        inc     esi
158 
        mov     ch, [esi]
 127 
        mov     ch, [esi]
159 
@@:
 128 
@@:
160 
        jmp     do_acpi_power_off
 129 
        jmp     do_acpi_power_off
161 
.scan_dsdt_cont:
 130 
.scan_dsdt_cont:
162 
        inc     esi
 131 
        inc     esi
163 
        dec     eax
 132 
        dec     eax
164 
        jnz     .scan_dsdt
 133 
        jnz     .scan_dsdt
165 
        jmp     no_acpi_power_off
 134 
        jmp     no_acpi
166 
do_acpi_power_off:
 135 
do_acpi_power_off:
167 
        mov     edx, [ebx+48]
 136 
        mov     edx, [ebx+ACPI_FADT.SMI_CMD]
168 
        test    edx, edx
 137 
        test    edx, edx
169 
        jz      .nosmi
 138 
        jz      .nosmi
170 
        mov     al, [ebx+52]
 139 
        mov     al, [ebx+ACPI_FADT.ACPI_ENABLE]
171 
        out     dx, al
 140 
        out     dx, al
172 
        mov     edx, [ebx+64]
 141 
        mov     edx, [ebx+ACPI_FADT.PM1a_CNT_BLK]
173 
@@:
 142 
@@:
174 
        in      ax, dx
 143 
        in      ax, dx
175 
        test    al, 1
 144 
        test    al, 1
176 
        jz      @b
 145 
        jz      @b
177 
.nosmi:
 146 
.nosmi:
178 
        and     cx, 0x0707
 147 
        and     cx, 0x0707
179 
        shl     cx, 2
 148 
        shl     cx, 2
180 
        or      cx, 0x2020
 149 
        or      cx, 0x2020
181 
        mov     edx, [ebx+64]
 150 
        mov     edx, [ebx+ACPI_FADT.PM1a_CNT_BLK]
182 
        in      ax, dx
 151 
        in      ax, dx
183 
        and     ax, 203h
 152 
        and     ax, 203h
184 
        or      ah, cl
 153 
        or      ah, cl
185 
        out     dx, ax
 154 
        out     dx, ax
186 
        mov     edx, [ebx+68]
 155 
        mov     edx, [ebx+ACPI_FADT.PM1b_CNT_BLK]
187 
        test    edx, edx
 156 
        test    edx, edx
188 
        jz      @f
 157 
        jz      @f
189 
        in      ax, dx
 158 
        in      ax, dx
190 
        and     ax, 203h
 159 
        and     ax, 203h
191 
        or      ah, ch
 160 
        or      ah, ch
192 
        out     dx, ax
 161 
        out     dx, ax
193 
@@:
 162 
@@:
194 
        jmp     $
 163 
        jmp     no_acpi
Line 195... Line 164...
195 
 
 164 
 
196 
no_acpi_power_off:
 165 
not_power_off:
197 
        cmp     byte[BOOT_LO.shutdown_type], SYSTEM_REBOOT
 166 
        cmp     [BOOT.shutdown_type], SYSTEM_REBOOT
198 
        jnz     no_acpi_reboot
 167 
        jnz     not_reboot
199 
        ; try to reboot via ACPI fixed features
 168 
        ; try to reboot via ACPI fixed features
200 
        mov     ebx, [acpi_fadt_base-OS_BASE]
 169 
        mov     ebx, [acpi_fadt_base]
- 
 
 170 
        test    ebx, ebx
- 
 
 171 
        jz      no_acpi
201 
        cmp     dword[ebx], 'FACP'
 172 
        cmp     [ebx+ACPI_TABLE.Signature], 'FACP'
- 
 
 173 
        jne     no_acpi
- 
 
 174 
        cmp     [ebx+ACPI_FADT.Length], ACPI_FADT.RESET_VALUE
202 
        jne     no_acpi_power_off
 175 
        jbe     no_acpi
203 
        test    dword[ebx+0x70], 1 SHL 10    ; RESET_REG_SUP
 176 
        test    [ebx+ACPI_FADT.Flags], 1 SHL 10    ; reset_reg_supported
204 
        jz      no_acpi_reboot
 177 
        jz      no_acpi
205 
        cmp     [ebx+0x74+GAS.asid], ASID.SYSTEM_IO
 178 
        cmp     [ebx+ACPI_FADT.RESET_REG.ASID], ASID.SYSTEM_IO
206 
        jnz     no_acpi_reboot
 179 
        jnz     no_acpi
207 
        cmp     [ebx+0x74+GAS.bit_width], 8
 180 
        cmp     [ebx+ACPI_FADT.RESET_REG.BitWidth], 8
208 
        jnz     no_acpi_reboot
 181 
        jnz     no_acpi
209 
        cmp     [ebx+0x74+GAS.bit_offset], 0
 182 
        cmp     [ebx+ACPI_FADT.RESET_REG.BitOffset], 0
210 
        jnz     no_acpi_reboot
 183 
        jnz     no_acpi
211 
        cmp     [ebx+0x74+GAS.access_size], ACCESS_SIZE.BYTE
 184 
        cmp     [ebx+ACPI_FADT.RESET_REG.AccessSize], ACCESS_SIZE.BYTE
212 
        ja      no_acpi_reboot
 185 
        ja      no_acpi
213 
        cmp     [ebx+0x74+GAS.address.hi], 0
 186 
        cmp     [ebx+ACPI_FADT.RESET_REG.Address.hi], 0
- 
 
 187 
        jnz     no_acpi
214 
        jnz     no_acpi_reboot
 188 
        ; 'enable' ACPI
215 
        mov     edx, [ebx+0x74+GAS.address.lo]
 189 
        mov     edx, [ebx+ACPI_FADT.SMI_CMD]
- 
 
 190 
        test    edx, edx
- 
 
 191 
        jz      .nosmi
216 
        movzx   eax, byte[ebx+0x80]
 192 
        mov     al, [ebx+ACPI_FADT.ACPI_ENABLE]
- 
 
 193 
        out     dx, al
- 
 
 194 
        mov     edx, [ebx+ACPI_FADT.PM1a_CNT_BLK]
- 
 
 195 
@@:
- 
 
 196 
        in      ax, dx
217 
        out     dx, al
 197 
        test    al, 1
- 
 
 198 
        jz      @b
- 
 
 199 
.nosmi:
- 
 
 200 
 
- 
 
 201 
        mov     edx, [ebx+ACPI_FADT.RESET_REG.Address.lo]
- 
 
 202 
        movzx   eax, [ebx+ACPI_FADT.RESET_VALUE]
218 
        jmp     $
 203 
        out     dx, al
- 
 
 204 
        jmp     no_acpi
219 
        ; unreachable
 205 
 
- 
 
 206 
not_reboot:
- 
 
 207 
no_acpi:
- 
 
 208 
        call    create_trampoline_pgmap
- 
 
 209 
        mov     cr3, eax
- 
 
 210 
        jmp     @F
- 
 
 211 
org $-OS_BASE
- 
 
 212 
@@:
- 
 
 213 
 
- 
 
 214 
;disable paging
- 
 
 215 
 
- 
 
 216 
        mov     eax, cr0
- 
 
 217 
        and     eax, 0x7FFFFFFF
- 
 
 218 
        mov     cr0, eax
- 
 
 219 
        mov     eax, cr3
- 
 
 220 
        mov     cr3, eax
220 
no_acpi_reboot:
 221 
 
Line 221... Line 222...
221 
        jmp     0x50000
 222 
        jmp     0x50000
222 
 
 223 
 
223 
align 4
 224 
align 4
Line 224... Line 225...
224 
restart_code_start:
 225 
restart_code_start:
225 
org 0x50000
 226 
org 0x50000
Line 226... Line 227...
226 
 
 227 
 
227 
        cmp     byte [BOOT_LO.shutdown_type], SYSTEM_RESTART
 228 
        cmp     [BOOT_LO.shutdown_type], SYSTEM_RESTART
228 
        jne     @F
 229 
        jne     @F