1 /* $Id: ttable.h,v 1.18 2002/02/09 19:49:32 davem Exp $ */
2 #ifndef _SPARC64_TTABLE_H
3 #define _SPARC64_TTABLE_H
5 #include <linux/config.h>
9 #include <asm/thread_info.h>
12 #define BOOT_KERNEL b sparc64_boot; nop; nop; nop; nop; nop; nop; nop;
14 /* We need a "cleaned" instruction... */
15 #define CLEAN_WINDOW \
16 rdpr %cleanwin, %l0; add %l0, 1, %l0; \
17 wrpr %l0, 0x0, %cleanwin; \
18 clr %o0; clr %o1; clr %o2; clr %o3; \
19 clr %o4; clr %o5; clr %o6; clr %o7; \
20 clr %l0; clr %l1; clr %l2; clr %l3; \
21 clr %l4; clr %l5; clr %l6; clr %l7; \
23 nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;
25 #define TRAP(routine) \
26 sethi %hi(109f), %g7; \
28 109: or %g7, %lo(109b), %g7; \
30 add %sp, PTREGS_OFF, %o0; \
35 #define TRAP_7INSNS(routine) \
36 sethi %hi(109f), %g7; \
38 109: or %g7, %lo(109b), %g7; \
40 add %sp, PTREGS_OFF, %o0; \
44 #define TRAP_SAVEFPU(routine) \
45 sethi %hi(109f), %g7; \
46 ba,pt %xcc, do_fptrap; \
47 109: or %g7, %lo(109b), %g7; \
49 add %sp, PTREGS_OFF, %o0; \
54 #define TRAP_NOSAVE(routine) \
55 ba,pt %xcc, routine; \
57 nop; nop; nop; nop; nop; nop;
59 #define TRAP_NOSAVE_7INSNS(routine) \
60 ba,pt %xcc, routine; \
62 nop; nop; nop; nop; nop;
64 #define TRAPTL1(routine) \
65 sethi %hi(109f), %g7; \
66 ba,pt %xcc, etraptl1; \
67 109: or %g7, %lo(109b), %g7; \
69 add %sp, PTREGS_OFF, %o0; \
74 #define TRAP_ARG(routine, arg) \
75 sethi %hi(109f), %g7; \
77 109: or %g7, %lo(109b), %g7; \
78 add %sp, PTREGS_OFF, %o0; \
84 #define TRAPTL1_ARG(routine, arg) \
85 sethi %hi(109f), %g7; \
86 ba,pt %xcc, etraptl1; \
87 109: or %g7, %lo(109b), %g7; \
88 add %sp, PTREGS_OFF, %o0; \
94 #define SYSCALL_TRAP(routine, systbl) \
95 sethi %hi(109f), %g7; \
96 ba,pt %xcc, scetrap; \
97 109: or %g7, %lo(109b), %g7; \
98 sethi %hi(systbl), %l7; \
99 ba,pt %xcc, routine; \
100 or %l7, %lo(systbl), %l7; \
103 #define INDIRECT_SOLARIS_SYSCALL(num) \
104 sethi %hi(109f), %g7; \
106 109: or %g7, %lo(109b), %g7; \
107 ba,pt %xcc, tl0_solaris + 0xc; \
111 #define TRAP_UTRAP(handler,lvl) \
112 ldx [%g6 + TI_UTRAPS], %g1; \
113 sethi %hi(109f), %g7; \
115 or %g7, %lo(109f), %g7; \
117 109: ldx [%g1 + handler*8], %g1; \
118 ba,pt %xcc, utrap_ill; \
121 #ifdef CONFIG_SUNOS_EMUL
122 #define SUNOS_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall32, sunos_sys_table)
124 #define SUNOS_SYSCALL_TRAP TRAP(sunos_syscall)
126 #define LINUX_32BIT_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall32, sys_call_table32)
127 #define LINUX_64BIT_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall, sys_call_table64)
128 #define GETCC_TRAP TRAP(getcc)
129 #define SETCC_TRAP TRAP(setcc)
130 #ifdef CONFIG_SOLARIS_EMUL
131 #define SOLARIS_SYSCALL_TRAP TRAP(solaris_sparc_syscall)
133 #define SOLARIS_SYSCALL_TRAP TRAP(solaris_syscall)
135 /* FIXME: Write these actually */
136 #define NETBSD_SYSCALL_TRAP TRAP(netbsd_syscall)
137 #define BREAKPOINT_TRAP TRAP(breakpoint_trap)
139 #define TRAP_IRQ(routine, level) \
141 wrpr %g0, 15, %pil; \
142 b,pt %xcc, etrap_irq; \
146 add %sp, PTREGS_OFF, %o1; \
147 ba,a,pt %xcc, rtrap_irq;
149 #define TICK_SMP_IRQ \
151 wrpr %g0, 15, %pil; \
152 sethi %hi(109f), %g7; \
153 b,pt %xcc, etrap_irq; \
154 109: or %g7, %lo(109b), %g7; \
155 call smp_percpu_timer_interrupt; \
156 add %sp, PTREGS_OFF, %o0; \
157 ba,a,pt %xcc, rtrap_irq;
159 #define TRAP_IVEC TRAP_NOSAVE(do_ivec)
161 #define BTRAP(lvl) TRAP_ARG(bad_trap, lvl)
163 #define BTRAPTL1(lvl) TRAPTL1_ARG(bad_trap_tl1, lvl)
165 #define FLUSH_WINDOW_TRAP \
169 ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1; \
171 stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC]; \
172 ba,pt %xcc, rtrap_clr_l6; \
173 stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC];
175 /* Before touching these macros, you owe it to yourself to go and
176 * see how arch/sparc64/kernel/winfixup.S works... -DaveM
178 * For the user cases we used to use the %asi register, but
179 * it turns out that the "wr xxx, %asi" costs ~5 cycles, so
180 * now we use immediate ASI loads and stores instead. Kudos
181 * to Greg Onufer for pointing out this performance anomaly.
183 * Further note that we cannot use the g2, g4, g5, and g7 alternate
184 * globals in the spill routines, check out the save instruction in
185 * arch/sparc64/kernel/etrap.S to see what I mean about g2, and
186 * g4/g5 are the globals which are preserved by etrap processing
187 * for the caller of it. The g7 register is the return pc for
188 * etrap. Finally, g6 is the current thread register so we cannot
189 * us it in the spill handlers either. Most of these rules do not
190 * apply to fill processing, only g6 is not usable.
193 /* Normal kernel spill */
194 #define SPILL_0_NORMAL \
195 stx %l0, [%sp + STACK_BIAS + 0x00]; \
196 stx %l1, [%sp + STACK_BIAS + 0x08]; \
197 stx %l2, [%sp + STACK_BIAS + 0x10]; \
198 stx %l3, [%sp + STACK_BIAS + 0x18]; \
199 stx %l4, [%sp + STACK_BIAS + 0x20]; \
200 stx %l5, [%sp + STACK_BIAS + 0x28]; \
201 stx %l6, [%sp + STACK_BIAS + 0x30]; \
202 stx %l7, [%sp + STACK_BIAS + 0x38]; \
203 stx %i0, [%sp + STACK_BIAS + 0x40]; \
204 stx %i1, [%sp + STACK_BIAS + 0x48]; \
205 stx %i2, [%sp + STACK_BIAS + 0x50]; \
206 stx %i3, [%sp + STACK_BIAS + 0x58]; \
207 stx %i4, [%sp + STACK_BIAS + 0x60]; \
208 stx %i5, [%sp + STACK_BIAS + 0x68]; \
209 stx %i6, [%sp + STACK_BIAS + 0x70]; \
210 stx %i7, [%sp + STACK_BIAS + 0x78]; \
211 saved; retry; nop; nop; nop; nop; nop; nop; \
212 nop; nop; nop; nop; nop; nop; nop; nop;
214 /* Normal 64bit spill */
215 #define SPILL_1_GENERIC(ASI) \
216 add %sp, STACK_BIAS + 0x00, %g1; \
217 stxa %l0, [%g1 + %g0] ASI; \
219 stxa %l1, [%g1 + %g3] ASI; \
220 add %g1, 0x10, %g1; \
221 stxa %l2, [%g1 + %g0] ASI; \
222 stxa %l3, [%g1 + %g3] ASI; \
223 add %g1, 0x10, %g1; \
224 stxa %l4, [%g1 + %g0] ASI; \
225 stxa %l5, [%g1 + %g3] ASI; \
226 add %g1, 0x10, %g1; \
227 stxa %l6, [%g1 + %g0] ASI; \
228 stxa %l7, [%g1 + %g3] ASI; \
229 add %g1, 0x10, %g1; \
230 stxa %i0, [%g1 + %g0] ASI; \
231 stxa %i1, [%g1 + %g3] ASI; \
232 add %g1, 0x10, %g1; \
233 stxa %i2, [%g1 + %g0] ASI; \
234 stxa %i3, [%g1 + %g3] ASI; \
235 add %g1, 0x10, %g1; \
236 stxa %i4, [%g1 + %g0] ASI; \
237 stxa %i5, [%g1 + %g3] ASI; \
238 add %g1, 0x10, %g1; \
239 stxa %i6, [%g1 + %g0] ASI; \
240 stxa %i7, [%g1 + %g3] ASI; \
243 b,a,pt %xcc, spill_fixup_dax; \
244 b,a,pt %xcc, spill_fixup_mna; \
245 b,a,pt %xcc, spill_fixup;
247 /* Normal 32bit spill */
248 #define SPILL_2_GENERIC(ASI) \
250 stwa %l0, [%sp + %g0] ASI; \
252 stwa %l1, [%sp + %g3] ASI; \
253 add %sp, 0x08, %g1; \
254 stwa %l2, [%g1 + %g0] ASI; \
255 stwa %l3, [%g1 + %g3] ASI; \
256 add %g1, 0x08, %g1; \
257 stwa %l4, [%g1 + %g0] ASI; \
258 stwa %l5, [%g1 + %g3] ASI; \
259 add %g1, 0x08, %g1; \
260 stwa %l6, [%g1 + %g0] ASI; \
261 stwa %l7, [%g1 + %g3] ASI; \
262 add %g1, 0x08, %g1; \
263 stwa %i0, [%g1 + %g0] ASI; \
264 stwa %i1, [%g1 + %g3] ASI; \
265 add %g1, 0x08, %g1; \
266 stwa %i2, [%g1 + %g0] ASI; \
267 stwa %i3, [%g1 + %g3] ASI; \
268 add %g1, 0x08, %g1; \
269 stwa %i4, [%g1 + %g0] ASI; \
270 stwa %i5, [%g1 + %g3] ASI; \
271 add %g1, 0x08, %g1; \
272 stwa %i6, [%g1 + %g0] ASI; \
273 stwa %i7, [%g1 + %g3] ASI; \
276 b,a,pt %xcc, spill_fixup_dax; \
277 b,a,pt %xcc, spill_fixup_mna; \
278 b,a,pt %xcc, spill_fixup;
280 #define SPILL_1_NORMAL SPILL_1_GENERIC(ASI_AIUP)
281 #define SPILL_2_NORMAL SPILL_2_GENERIC(ASI_AIUP)
282 #define SPILL_3_NORMAL SPILL_0_NORMAL
283 #define SPILL_4_NORMAL SPILL_0_NORMAL
284 #define SPILL_5_NORMAL SPILL_0_NORMAL
285 #define SPILL_6_NORMAL SPILL_0_NORMAL
286 #define SPILL_7_NORMAL SPILL_0_NORMAL
288 #define SPILL_0_OTHER SPILL_0_NORMAL
289 #define SPILL_1_OTHER SPILL_1_GENERIC(ASI_AIUS)
290 #define SPILL_2_OTHER SPILL_2_GENERIC(ASI_AIUS)
291 #define SPILL_3_OTHER SPILL_3_NORMAL
292 #define SPILL_4_OTHER SPILL_4_NORMAL
293 #define SPILL_5_OTHER SPILL_5_NORMAL
294 #define SPILL_6_OTHER SPILL_6_NORMAL
295 #define SPILL_7_OTHER SPILL_7_NORMAL
297 /* Normal kernel fill */
298 #define FILL_0_NORMAL \
299 ldx [%sp + STACK_BIAS + 0x00], %l0; \
300 ldx [%sp + STACK_BIAS + 0x08], %l1; \
301 ldx [%sp + STACK_BIAS + 0x10], %l2; \
302 ldx [%sp + STACK_BIAS + 0x18], %l3; \
303 ldx [%sp + STACK_BIAS + 0x20], %l4; \
304 ldx [%sp + STACK_BIAS + 0x28], %l5; \
305 ldx [%sp + STACK_BIAS + 0x30], %l6; \
306 ldx [%sp + STACK_BIAS + 0x38], %l7; \
307 ldx [%sp + STACK_BIAS + 0x40], %i0; \
308 ldx [%sp + STACK_BIAS + 0x48], %i1; \
309 ldx [%sp + STACK_BIAS + 0x50], %i2; \
310 ldx [%sp + STACK_BIAS + 0x58], %i3; \
311 ldx [%sp + STACK_BIAS + 0x60], %i4; \
312 ldx [%sp + STACK_BIAS + 0x68], %i5; \
313 ldx [%sp + STACK_BIAS + 0x70], %i6; \
314 ldx [%sp + STACK_BIAS + 0x78], %i7; \
315 restored; retry; nop; nop; nop; nop; nop; nop; \
316 nop; nop; nop; nop; nop; nop; nop; nop;
318 /* Normal 64bit fill */
319 #define FILL_1_GENERIC(ASI) \
320 add %sp, STACK_BIAS + 0x00, %g1; \
321 ldxa [%g1 + %g0] ASI, %l0; \
324 ldxa [%g1 + %g2] ASI, %l1; \
326 ldxa [%g1 + %g3] ASI, %l2; \
327 ldxa [%g1 + %g5] ASI, %l3; \
328 add %g1, 0x20, %g1; \
329 ldxa [%g1 + %g0] ASI, %l4; \
330 ldxa [%g1 + %g2] ASI, %l5; \
331 ldxa [%g1 + %g3] ASI, %l6; \
332 ldxa [%g1 + %g5] ASI, %l7; \
333 add %g1, 0x20, %g1; \
334 ldxa [%g1 + %g0] ASI, %i0; \
335 ldxa [%g1 + %g2] ASI, %i1; \
336 ldxa [%g1 + %g3] ASI, %i2; \
337 ldxa [%g1 + %g5] ASI, %i3; \
338 add %g1, 0x20, %g1; \
339 ldxa [%g1 + %g0] ASI, %i4; \
340 ldxa [%g1 + %g2] ASI, %i5; \
341 ldxa [%g1 + %g3] ASI, %i6; \
342 ldxa [%g1 + %g5] ASI, %i7; \
344 retry; nop; nop; nop; nop; \
345 b,a,pt %xcc, fill_fixup_dax; \
346 b,a,pt %xcc, fill_fixup_mna; \
347 b,a,pt %xcc, fill_fixup;
349 /* Normal 32bit fill */
350 #define FILL_2_GENERIC(ASI) \
352 lduwa [%sp + %g0] ASI, %l0; \
355 lduwa [%sp + %g2] ASI, %l1; \
357 lduwa [%sp + %g3] ASI, %l2; \
358 lduwa [%sp + %g5] ASI, %l3; \
359 add %sp, 0x10, %g1; \
360 lduwa [%g1 + %g0] ASI, %l4; \
361 lduwa [%g1 + %g2] ASI, %l5; \
362 lduwa [%g1 + %g3] ASI, %l6; \
363 lduwa [%g1 + %g5] ASI, %l7; \
364 add %g1, 0x10, %g1; \
365 lduwa [%g1 + %g0] ASI, %i0; \
366 lduwa [%g1 + %g2] ASI, %i1; \
367 lduwa [%g1 + %g3] ASI, %i2; \
368 lduwa [%g1 + %g5] ASI, %i3; \
369 add %g1, 0x10, %g1; \
370 lduwa [%g1 + %g0] ASI, %i4; \
371 lduwa [%g1 + %g2] ASI, %i5; \
372 lduwa [%g1 + %g3] ASI, %i6; \
373 lduwa [%g1 + %g5] ASI, %i7; \
375 retry; nop; nop; nop; nop; \
376 b,a,pt %xcc, fill_fixup_dax; \
377 b,a,pt %xcc, fill_fixup_mna; \
378 b,a,pt %xcc, fill_fixup;
380 #define FILL_1_NORMAL FILL_1_GENERIC(ASI_AIUP)
381 #define FILL_2_NORMAL FILL_2_GENERIC(ASI_AIUP)
382 #define FILL_3_NORMAL FILL_0_NORMAL
383 #define FILL_4_NORMAL FILL_0_NORMAL
384 #define FILL_5_NORMAL FILL_0_NORMAL
385 #define FILL_6_NORMAL FILL_0_NORMAL
386 #define FILL_7_NORMAL FILL_0_NORMAL
388 #define FILL_0_OTHER FILL_0_NORMAL
389 #define FILL_1_OTHER FILL_1_GENERIC(ASI_AIUS)
390 #define FILL_2_OTHER FILL_2_GENERIC(ASI_AIUS)
391 #define FILL_3_OTHER FILL_3_NORMAL
392 #define FILL_4_OTHER FILL_4_NORMAL
393 #define FILL_5_OTHER FILL_5_NORMAL
394 #define FILL_6_OTHER FILL_6_NORMAL
395 #define FILL_7_OTHER FILL_7_NORMAL
397 #endif /* !(_SPARC64_TTABLE_H) */