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Line 47... Line 47...
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 47 
 
48 
stack0:
 48 
stack0:
49 
kernel_image_start:
 49 
kernel_image_start:
50 
	.auto
 50 
	.auto
51 
 
 51 
 
- 
 
 52 
#ifdef CONFIG_SMP
52 
	# Identify self(CPU) in OS structures by ID / EID
 53 
	# Identify self(CPU) in OS structures by ID / EID
53 
 
 54 
 
54 
	mov r9 = cr64
 55 
	mov r9 = cr64
55 
	mov r10 = 1
 56 
	mov r10 = 1
56 
	movl r12 = 0xffffffff
 57 
	movl r12 = 0xffffffff
57 
	movl r8 = cpu_by_id_eid_list
 58 
	movl r8 = cpu_by_id_eid_list
58 
	and r8 = r8, r12
 59 
	and r8 = r8, r12
59 
	shr r9 = r9, 16
 60 
	shr r9 = r9, 16
60 
	add r8 = r8, r9
 61 
	add r8 = r8, r9
61 
	st1 [r8] = r10
 62 
	st1 [r8] = r10
- 
 
 63 
#endif
62 
 
 64 
 
63 
	mov psr.l = r0
 65 
	mov psr.l = r0
64 
	srlz.i
 66 
	srlz.i
65 
	srlz.d
 67 
	srlz.d
66 
 
 68 
 
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	mov rr[r8] = r9
 79 
	mov rr[r8] = r9
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 80 
 
79 
	movl r8 = (VRN_KERNEL << VRN_SHIFT)
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	movl r8 = (VRN_KERNEL << VRN_SHIFT)
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	mov cr.ifa = r8
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	mov cr.ifa = r8
81 
 
 83 
 
82 
	mov r11 = cr.itir ;;
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	mov r11 = cr.itir
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	movl r10 = (KERNEL_PAGE_WIDTH << PS_SHIFT);;
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	movl r10 = (KERNEL_PAGE_WIDTH << PS_SHIFT)
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	or r10 = r10, r11 ;;
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	or r10 = r10, r11
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	mov cr.itir = r10;;
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	mov cr.itir = r10
86 
 
 88 
 
87 
	movl r10 = (KERNEL_TRANSLATION_I)
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	movl r10 = (KERNEL_TRANSLATION_I)
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	itr.i itr[r0] = r10
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	itr.i itr[r0] = r10
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	movl r10 = (KERNEL_TRANSLATION_D)
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	movl r10 = (KERNEL_TRANSLATION_D)
90 
	itr.d dtr[r0] = r10
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	itr.d dtr[r0] = r10
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	movl r8 = (VRN_KERNEL << VRN_SHIFT) | VIO_OFFSET
 95 
	movl r8 = (VRN_KERNEL << VRN_SHIFT) | VIO_OFFSET
94 
	mov cr.ifa = r8
 96 
	mov cr.ifa = r8
95 
	movl r10 = (KERNEL_TRANSLATION_VIO)
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	movl r10 = (KERNEL_TRANSLATION_VIO)
96 
	itr.d dtr[r7] = r10
 98 
	itr.d dtr[r7] = r10
97 
 
 99 
 
98 
	mov r11 = cr.itir ;;
 100 
	mov r11 = cr.itir
99 
	movl r10 = ~0xfc;;
 101 
	movl r10 = ~0xfc
100 
	and r10 = r10, r11 ;;
 102 
	and r10 = r10, r11
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	movl r11 = (IO_PAGE_WIDTH << PS_SHIFT);;
 103 
	movl r11 = (IO_PAGE_WIDTH << PS_SHIFT)
102 
	or r10 = r10, r11 ;;
 104 
	or r10 = r10, r11
103 
	mov cr.itir = r10;;
 105 
	mov cr.itir = r10
104 
 
 106 
 
105 
	movl r7 = 2
 107 
	movl r7 = 2
106 
	movl r8 = (VRN_KERNEL << VRN_SHIFT) | IO_OFFSET
 108 
	movl r8 = (VRN_KERNEL << VRN_SHIFT) | IO_OFFSET
107 
	mov cr.ifa = r8
 109 
	mov cr.ifa = r8
108 
	movl r10 = (KERNEL_TRANSLATION_IO)
 110 
	movl r10 = (KERNEL_TRANSLATION_IO)
109 
	itr.d dtr[r7] = r10
 111 
	itr.d dtr[r7] = r10
110 
 
 112 
 
111 
	# Setup mapping for fimware arrea (also SAPIC)
 113 
	# Setup mapping for fimware arrea (also SAPIC)
112 
 
 114 
 
113 
	mov r11 = cr.itir ;;
 115 
	mov r11 = cr.itir
114 
	movl r10 = ~0xfc;;
 116 
	movl r10 = ~0xfc
115 
	and r10 = r10, r11 ;;
 117 
	and r10 = r10, r11
116 
	movl r11 = (FW_PAGE_WIDTH << PS_SHIFT);;
 118 
	movl r11 = (FW_PAGE_WIDTH << PS_SHIFT)
117 
	or r10 = r10, r11 ;;
 119 
	or r10 = r10, r11
118 
	mov cr.itir = r10;;
 120 
	mov cr.itir = r10
119 
 
 121 
 
120 
	movl r7 = 3
 122 
	movl r7 = 3
121 
	movl r8 = (VRN_KERNEL << VRN_SHIFT) | FW_OFFSET
 123 
	movl r8 = (VRN_KERNEL << VRN_SHIFT) | FW_OFFSET
122 
	mov cr.ifa = r8
 124 
	mov cr.ifa = r8
123 
	movl r10 = (KERNEL_TRANSLATION_FW)
 125 
	movl r10 = (KERNEL_TRANSLATION_FW)
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140 
 
 142 
 
141 
	/*
 143 
	/*
142 
	 * Return From Interrupt is the only way to
 144 
	 * Return From Interrupt is the only way to
143 
	 * fill the upper half word of PSR.
 145 
	 * fill the upper half word of PSR.
144 
	 */
 146 
	 */
145 
	rfi;;
 147 
	rfi ;;
146 
 
 148 
 
147 
 
 149 
 
148 
.global paging_start
 150 
.global paging_start
149 
paging_start:
 151 
paging_start:
150 
 
 152 
 
Line 153... Line 155...
153 
	 */
 155 
	 */
154 
 
 156 
 
155 
	# Switch to register bank 1
 157 
	# Switch to register bank 1
156 
	bsw.1
 158 
	bsw.1
157 
 
 159 
 
- 
 
 160 
#ifdef CONFIG_SMP
158 
	# Am I BSP or AP?
 161 
	# Am I BSP or AP?
159 
	movl r20 = bsp_started;;
 162 
	movl r20 = bsp_started ;;
160 
	ld8 r20 = [r20];;
 163 
	ld8 r20 = [r20] ;;
161 
	cmp.eq p3, p2 = r20, r0;;
 164 
	cmp.eq p3, p2 = r20, r0 ;;
- 
 
 165 
#else
- 
 
 166 
	cmp.eq p3, p2 = r0, r0 ;;	/* you are BSP */
- 
 
 167 
#endif	/* CONFIG_SMP */
162
168
163 
	# Initialize register stack
 169 
	# Initialize register stack
164 
	mov ar.rsc = r0
 170 
	mov ar.rsc = r0
165 
	movl r8 = (VRN_KERNEL << VRN_SHIFT) ;;
 171 
	movl r8 = (VRN_KERNEL << VRN_SHIFT) ;;
166 
	mov ar.bspstore = r8
 172 
	mov ar.bspstore = r8
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193 
 
 199 
 
194 
	ssm (1 << 19) ;; /* Disable f32 - f127 */
 200 
	ssm (1 << 19) ;; /* Disable f32 - f127 */
195 
	srlz.i
 201 
	srlz.i
196 
	srlz.d ;;
 202 
	srlz.d ;;
197 
 
 203 
 
- 
 
 204 
#ifdef CONFIG_SMP
198 
(p2)	movl r18 = main_ap ;;
 205 
(p2)	movl r18 = main_ap ;;
199 
(p2)   	mov b1 = r18 ;;
 206 
(p2)   	mov b1 = r18 ;;
200 
(p2)	br.call.sptk.many b0 = b1
 207 
(p2)	br.call.sptk.many b0 = b1
201 
 
 208 
 
202 
	# Mark that BSP is on
 209 
	# Mark that BSP is on
203 
	mov r20=1;;
 210 
	mov r20 = 1 ;;
204 
	movl r21=bsp_started;;
 211 
	movl r21 = bsp_started ;;
205 
	st8 [r21]=r20;;
 212 
	st8 [r21] = r20 ;;
- 
 
 213 
#endif
206 
 
 214 
 
207 
	br.call.sptk.many b0 = arch_pre_main
 215 
	br.call.sptk.many b0 = arch_pre_main
208 
 
 216 
 
209 
	movl r18 = main_bsp ;;
 217 
	movl r18 = main_bsp ;;
210 
	mov b1 = r18 ;;
 218 
	mov b1 = r18 ;;
211 
	br.call.sptk.many b0 = b1
 219 
	br.call.sptk.many b0 = b1
212 
 
 220 
 
213 
0:
 221 
0:
214 
	br 0b
 222 
	br 0b
215 
.align 4096
 - 
 
216 
 
 223 
 
- 
 
 224 
#ifdef CONFIG_SMP
- 
 
 225 
 
- 
 
 226 
.align 4096
217 
kernel_image_ap_start:
 227 
kernel_image_ap_start:
218 
	.auto
 228 
	.auto
219 
 
 229 
 
220 
	# Identify self(CPU) in OS structures by ID / EID
 230 
	# Identify self(CPU) in OS structures by ID / EID
221 
 
 231 
 
Line 227... Line 237...
227 
	shr r9 = r9, 16
 237 
	shr r9 = r9, 16
228 
	add r8 = r8, r9
 238 
	add r8 = r8, r9
229 
	st1 [r8] = r10
 239 
	st1 [r8] = r10
230
240
231 
	# Wait for wakeup synchro signal (#3 in cpu_by_id_eid_list)
 241 
	# Wait for wakeup synchro signal (#3 in cpu_by_id_eid_list)
- 
 
 242
232 
kernel_image_ap_start_loop:
 243 
kernel_image_ap_start_loop:
233 
	movl r11 = kernel_image_ap_start_loop
 244 
	movl r11 = kernel_image_ap_start_loop
234 
	and r11 = r11, r12
 245 
	and r11 = r11, r12
235 
   	mov b1 = r11
246 
   	mov b1 = r11
236 
 
 247 
 
237 
	ld1 r20 = [r8];;
 248 
	ld1 r20 = [r8] ;;
238 
	movl r21 = 3;;
 249 
	movl r21 = 3 ;;
239 
	cmp.eq p2, p3 = r20, r21;;
 250 
	cmp.eq p2, p3 = r20, r21 ;;
240 
(p3)	br.call.sptk.many b0 = b1
 251 
(p3)	br.call.sptk.many b0 = b1
241 
 
 252 
 
242 
	movl r11 = kernel_image_start
 253 
	movl r11 = kernel_image_start
243 
	and r11 = r11, r12
 254 
	and r11 = r11, r12
244 
	mov b1 = r11
255 
	mov b1 = r11
245 
	br.call.sptk.many b0 = b1
 256 
	br.call.sptk.many b0 = b1
246 
 
 257 
 
247 
 
 - 
 
248 
.align 16
 258 
.align 16
249 
.global bsp_started
 259 
.global bsp_started
250 
bsp_started:
 260 
bsp_started:
251 
.space 8
 261 
.space 8
252 
 
 262 
 
253 
.align 4096
 263 
.align 4096
254 
.global cpu_by_id_eid_list
 264 
.global cpu_by_id_eid_list
255 
cpu_by_id_eid_list:
 265 
cpu_by_id_eid_list:
256 
.space 65536
 266 
.space 65536
257 
 
 267 
 
- 
 
 268 
#endif	/* CONFIG_SMP */