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37 | 37 | ||
38 | #define KERNEL_TRANSLATION_I 0x0010000000000661 |
38 | #define KERNEL_TRANSLATION_I 0x0010000000000661 |
39 | #define KERNEL_TRANSLATION_D 0x0010000000000661 |
39 | #define KERNEL_TRANSLATION_D 0x0010000000000661 |
40 | #define KERNEL_TRANSLATION_VIO 0x0010000000000671 |
40 | #define KERNEL_TRANSLATION_VIO 0x0010000000000671 |
41 | #define KERNEL_TRANSLATION_IO 0x00100FFFFC000671 |
41 | #define KERNEL_TRANSLATION_IO 0x00100FFFFC000671 |
42 | #define VIO_OFFSET 0x0002000000000000 |
- | |
43 | - | ||
44 | #define IO_OFFSET 0x0001000000000000 |
42 | #define KERNEL_TRANSLATION_FW 0x00100000F0000671 |
45 | 43 | ||
46 | 44 | ||
47 | 45 | ||
48 | .section K_TEXT_START, "ax" |
46 | .section K_TEXT_START, "ax" |
49 | 47 | ||
Line 51... | Line 49... | ||
51 | 49 | ||
52 | stack0: |
50 | stack0: |
53 | kernel_image_start: |
51 | kernel_image_start: |
54 | .auto |
52 | .auto |
55 | 53 | ||
- | 54 | #identifi self(CPU) in OS structures by ID / EID |
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- | 55 | mov r9=cr64 |
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- | 56 | mov r10=1 |
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- | 57 | movl r12=0xffffffff |
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- | 58 | movl r8=cpu_by_id_eid_list |
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- | 59 | and r8=r8,r12 |
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- | 60 | shr r9=r9,16 |
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- | 61 | add r8=r8,r9 |
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- | 62 | st1 [r8]=r10 |
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- | 63 | ||
- | 64 | ||
- | 65 | ||
56 | mov psr.l = r0 |
66 | mov psr.l = r0 |
57 | srlz.i |
67 | srlz.i |
58 | srlz.d |
68 | srlz.d |
59 | 69 | ||
60 | # Fill TR.i and TR.d using Region Register #VRN_KERNEL |
70 | # Fill TR.i and TR.d using Region Register #VRN_KERNEL |
Line 112... | Line 122... | ||
112 | mov cr.ifa = r8 |
122 | mov cr.ifa = r8 |
113 | movl r10 = (KERNEL_TRANSLATION_IO) |
123 | movl r10 = (KERNEL_TRANSLATION_IO) |
114 | itr.d dtr[r7] = r10 |
124 | itr.d dtr[r7] = r10 |
115 | 125 | ||
116 | 126 | ||
- | 127 | #setup mapping for fimware arrea (also SAPIC) |
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- | 128 | mov r11 = cr.itir ;; |
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- | 129 | movl r10 = ~0xfc;; |
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- | 130 | and r10 =r10 , r11 ;; |
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- | 131 | movl r11 = (FW_PAGE_WIDTH << PS_SHIFT);; |
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- | 132 | or r10 =r10 , r11 ;; |
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- | 133 | mov cr.itir = r10;; |
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- | 134 | ||
- | 135 | ||
- | 136 | movl r7 = 3 |
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- | 137 | movl r8 = (VRN_KERNEL << VRN_SHIFT) | FW_OFFSET |
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- | 138 | mov cr.ifa = r8 |
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- | 139 | movl r10 = (KERNEL_TRANSLATION_FW) |
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- | 140 | itr.d dtr[r7] = r10 |
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- | 141 | ||
- | 142 | ||
- | 143 | ||
117 | 144 | ||
118 | 145 | ||
119 | # initialize PSR |
146 | # initialize PSR |
120 | movl r10 = (PSR_DT_MASK | PSR_RT_MASK | PSR_IT_MASK | PSR_IC_MASK) /* Enable paging */ |
147 | movl r10 = (PSR_DT_MASK | PSR_RT_MASK | PSR_IT_MASK | PSR_IC_MASK) /* Enable paging */ |
121 | mov r9 = psr |
148 | mov r9 = psr |
Line 140... | Line 167... | ||
140 | * Now we are paging. |
167 | * Now we are paging. |
141 | */ |
168 | */ |
142 | 169 | ||
143 | # switch to register bank 1 |
170 | # switch to register bank 1 |
144 | bsw.1 |
171 | bsw.1 |
- | 172 | ||
- | 173 | #Am'I BSP or AP |
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- | 174 | movl r20=bsp_started;; |
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- | 175 | ld8 r20=[r20];; |
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- | 176 | cmp.eq p3,p2=r20,r0;; |
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- | 177 | ||
145 | 178 | ||
146 | # initialize register stack |
179 | # initialize register stack |
147 | mov ar.rsc = r0 |
180 | mov ar.rsc = r0 |
148 | movl r8 = (VRN_KERNEL << VRN_SHIFT) ;; |
181 | movl r8 = (VRN_KERNEL << VRN_SHIFT) ;; |
149 | mov ar.bspstore = r8 |
182 | mov ar.bspstore = r8 |
Line 158... | Line 191... | ||
158 | movl r20 = (VRN_KERNEL << VRN_SHIFT);; |
191 | movl r20 = (VRN_KERNEL << VRN_SHIFT);; |
159 | or r20 = r20,r1;; |
192 | or r20 = r20,r1;; |
160 | movl r1 = _hardcoded_load_address |
193 | movl r1 = _hardcoded_load_address |
161 | 194 | ||
162 | /* |
195 | /* |
163 | * Initialize hardcoded_* variables. |
196 | * Initialize hardcoded_* variables. Do only BSP |
164 | */ |
197 | */ |
165 | movl r14 = _hardcoded_ktext_size |
198 | (p3) movl r14 = _hardcoded_ktext_size |
166 | movl r15 = _hardcoded_kdata_size |
199 | (p3) movl r15 = _hardcoded_kdata_size |
167 | movl r16 = _hardcoded_load_address ;; |
200 | (p3) movl r16 = _hardcoded_load_address ;; |
168 | addl r17 = @gprel(hardcoded_ktext_size), gp |
201 | (p3) addl r17 = @gprel(hardcoded_ktext_size), gp |
169 | addl r18 = @gprel(hardcoded_kdata_size), gp |
202 | (p3) addl r18 = @gprel(hardcoded_kdata_size), gp |
170 | addl r19 = @gprel(hardcoded_load_address), gp |
203 | (p3) addl r19 = @gprel(hardcoded_load_address), gp |
171 | addl r21 = @gprel(bootinfo), gp |
204 | (p3) addl r21 = @gprel(bootinfo), gp |
172 | ;; |
205 | ;; |
173 | st8 [r17] = r14 |
206 | (p3) st8 [r17] = r14 |
174 | st8 [r18] = r15 |
207 | (p3) st8 [r18] = r15 |
175 | st8 [r19] = r16 |
208 | (p3) st8 [r19] = r16 |
176 | st8 [r21] = r20 |
209 | (p3) st8 [r21] = r20 |
177 | 210 | ||
178 | ssm (1 << 19) ;; /* Disable f32 - f127 */ |
211 | ssm (1 << 19) ;; /* Disable f32 - f127 */ |
179 | srlz.i |
212 | srlz.i |
180 | srlz.d ;; |
213 | srlz.d ;; |
181 | 214 | ||
- | 215 | (p2) movl r18 = main_ap ;; |
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- | 216 | (p2) mov b1 = r18 ;; |
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- | 217 | (p2) br.call.sptk.many b0 = b1 |
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- | 218 | ||
- | 219 | #Mark that BSP is on |
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- | 220 | mov r20=1;; |
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- | 221 | movl r21=bsp_started;; |
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- | 222 | st8 [r21]=r20;; |
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- | 223 | ||
- | 224 | ||
182 | br.call.sptk.many b0 = arch_pre_main |
225 | br.call.sptk.many b0 = arch_pre_main |
183 | 226 | ||
184 | movl r18 = main_bsp ;; |
227 | movl r18 = main_bsp ;; |
185 | mov b1 = r18 ;; |
228 | mov b1 = r18 ;; |
186 | br.call.sptk.many b0 = b1 |
229 | br.call.sptk.many b0 = b1 |
187 | 230 | ||
188 | 231 | ||
189 | 0: |
232 | 0: |
190 | br 0b |
233 | br 0b |
- | 234 | .align 4096 |
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- | 235 | ||
- | 236 | kernel_image_ap_start: |
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- | 237 | .auto |
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- | 238 | #identifi self(CPU) in OS structures by ID / EID |
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- | 239 | mov r9=cr64 |
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- | 240 | mov r10=1 |
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- | 241 | movl r12=0xffffffff |
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- | 242 | movl r8=cpu_by_id_eid_list |
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- | 243 | and r8=r8,r12 |
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- | 244 | shr r9=r9,16 |
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- | 245 | add r8=r8,r9 |
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- | 246 | st1 [r8]=r10 |
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- | 247 | ||
- | 248 | #wait for wakeup sychro signal (#3 in cpu_by_id_eid_list) |
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- | 249 | kernel_image_ap_start_loop: |
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- | 250 | movl r11=kernel_image_ap_start_loop |
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- | 251 | and r11=r11,r12 |
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- | 252 | mov b1 = r11 |
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- | 253 | ||
- | 254 | ld1 r20=[r8];; |
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- | 255 | movl r21=3;; |
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- | 256 | cmp.eq p2,p3=r20,r21;; |
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- | 257 | (p3)br.call.sptk.many b0 = b1 |
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- | 258 | ||
- | 259 | movl r11=kernel_image_start |
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- | 260 | and r11=r11,r12 |
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- | 261 | mov b1 = r11 |
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- | 262 | br.call.sptk.many b0 = b1 |
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- | 263 | ||
- | 264 | ||
- | 265 | .align 16 |
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- | 266 | .global bsp_started |
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- | 267 | bsp_started: |
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- | 268 | .space 8 |
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- | 269 | ||
- | 270 | ||
- | 271 | .align 4096 |
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- | 272 | .global cpu_by_id_eid_list |
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- | 273 | cpu_by_id_eid_list: |
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- | 274 | .space 65536 |
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- | 275 | ||
- | 276 |