1 /* $NetBSD: cpufunc.h,v 1.29 2003/09/06 09:08:35 rearnsha Exp $ */
4 * Copyright (c) 1997 Mark Brinicombe.
5 * Copyright (c) 1997 Causality Limited
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Causality Limited.
19 * 4. The name of Causality Limited may not be used to endorse or promote
20 * products derived from this software without specific prior written
23 * THIS SOFTWARE IS PROVIDED BY CAUSALITY LIMITED ``AS IS'' AND ANY EXPRESS
24 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL CAUSALITY LIMITED BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * RiscBSD kernel project
39 * Prototypes for cpu, mmu and tlb related functions.
44 #ifndef _MACHINE_CPUFUNC_H_
45 #define _MACHINE_CPUFUNC_H_
49 #include <sys/types.h>
50 #include <machine/armreg.h>
51 #include <machine/cpuconf.h>
56 __asm(".word 0xe7ffffff");
59 struct cpu_functions {
63 void (*cf_cpwait) (void);
68 u_int (*cf_control) (u_int bic, u_int eor);
69 void (*cf_setttb) (u_int ttb);
74 void (*cf_tlb_flushID) (void);
75 void (*cf_tlb_flushID_SE) (u_int va);
76 void (*cf_tlb_flushD) (void);
77 void (*cf_tlb_flushD_SE) (u_int va);
82 * We define the following primitives:
84 * icache_sync_range Synchronize I-cache range
86 * dcache_wbinv_all Write-back and Invalidate D-cache
87 * dcache_wbinv_range Write-back and Invalidate D-cache range
88 * dcache_inv_range Invalidate D-cache range
89 * dcache_wb_range Write-back D-cache range
91 * idcache_wbinv_all Write-back and Invalidate D-cache,
93 * idcache_wbinv_range Write-back and Invalidate D-cache,
94 * Invalidate I-cache range
96 * Note that the ARM term for "write-back" is "clean". We use
97 * the term "write-back" since it's a more common way to describe
100 * There are some rules that must be followed:
102 * ID-cache Invalidate All:
103 * Unlike other functions, this one must never write back.
104 * It is used to intialize the MMU when it is in an unknown
105 * state (such as when it may have lines tagged as valid
106 * that belong to a previous set of mappings).
108 * I-cache Sync range:
109 * The goal is to synchronize the instruction stream,
110 * so you may beed to write-back dirty D-cache blocks
111 * first. If a range is requested, and you can't
112 * synchronize just a range, you have to hit the whole
115 * D-cache Write-Back and Invalidate range:
116 * If you can't WB-Inv a range, you must WB-Inv the
119 * D-cache Invalidate:
120 * If you can't Inv the D-cache, you must Write-Back
121 * and Invalidate. Code that uses this operation
122 * MUST NOT assume that the D-cache will not be written
125 * D-cache Write-Back:
126 * If you can't Write-back without doing an Inv,
127 * that's fine. Then treat this as a WB-Inv.
128 * Skipping the invalidate is merely an optimization.
131 * Valid virtual addresses must be passed to each
134 void (*cf_icache_sync_range) (vm_offset_t, vm_size_t);
136 void (*cf_dcache_wbinv_all) (void);
137 void (*cf_dcache_wbinv_range) (vm_offset_t, vm_size_t);
138 void (*cf_dcache_inv_range) (vm_offset_t, vm_size_t);
139 void (*cf_dcache_wb_range) (vm_offset_t, vm_size_t);
141 void (*cf_idcache_inv_all) (void);
142 void (*cf_idcache_wbinv_all) (void);
143 void (*cf_idcache_wbinv_range) (vm_offset_t, vm_size_t);
145 void (*cf_l2cache_wbinv_all) (void);
146 void (*cf_l2cache_wbinv_range) (vm_offset_t, vm_size_t);
147 void (*cf_l2cache_inv_range) (vm_offset_t, vm_size_t);
148 void (*cf_l2cache_wb_range) (vm_offset_t, vm_size_t);
149 void (*cf_l2cache_drain_writebuf) (void);
151 /* Other functions */
153 void (*cf_drain_writebuf) (void);
155 void (*cf_sleep) (int mode);
160 void (*cf_context_switch) (void);
163 void (*cf_setup) (void);
166 extern struct cpu_functions cpufuncs;
167 extern u_int cputype;
170 #define cpu_cpwait() cpufuncs.cf_cpwait()
173 #define cpu_control(c, e) cpufuncs.cf_control(c, e)
175 #define cpu_setttb(t) cpufuncs.cf_setttb(t)
177 #define cpu_tlb_flushID() cpufuncs.cf_tlb_flushID()
178 #define cpu_tlb_flushID_SE(e) cpufuncs.cf_tlb_flushID_SE(e)
179 #define cpu_tlb_flushD() cpufuncs.cf_tlb_flushD()
180 #define cpu_tlb_flushD_SE(e) cpufuncs.cf_tlb_flushD_SE(e)
182 #define cpu_icache_sync_range(a, s) cpufuncs.cf_icache_sync_range((a), (s))
184 #define cpu_dcache_wbinv_all() cpufuncs.cf_dcache_wbinv_all()
185 #define cpu_dcache_wbinv_range(a, s) cpufuncs.cf_dcache_wbinv_range((a), (s))
186 #define cpu_dcache_inv_range(a, s) cpufuncs.cf_dcache_inv_range((a), (s))
187 #define cpu_dcache_wb_range(a, s) cpufuncs.cf_dcache_wb_range((a), (s))
189 #define cpu_idcache_inv_all() cpufuncs.cf_idcache_inv_all()
190 #define cpu_idcache_wbinv_all() cpufuncs.cf_idcache_wbinv_all()
191 #define cpu_idcache_wbinv_range(a, s) cpufuncs.cf_idcache_wbinv_range((a), (s))
193 #define cpu_l2cache_wbinv_all() cpufuncs.cf_l2cache_wbinv_all()
194 #define cpu_l2cache_wb_range(a, s) cpufuncs.cf_l2cache_wb_range((a), (s))
195 #define cpu_l2cache_inv_range(a, s) cpufuncs.cf_l2cache_inv_range((a), (s))
196 #define cpu_l2cache_wbinv_range(a, s) cpufuncs.cf_l2cache_wbinv_range((a), (s))
197 #define cpu_l2cache_drain_writebuf() cpufuncs.cf_l2cache_drain_writebuf()
200 #define cpu_drain_writebuf() cpufuncs.cf_drain_writebuf()
202 #define cpu_sleep(m) cpufuncs.cf_sleep(m)
204 #define cpu_setup() cpufuncs.cf_setup()
206 int set_cpufuncs (void);
207 #define ARCHITECTURE_NOT_PRESENT 1 /* known but not configured */
208 #define ARCHITECTURE_NOT_SUPPORTED 2 /* not known */
210 void cpufunc_nullop (void);
211 u_int cpu_ident (void);
212 u_int cpufunc_control (u_int clear, u_int bic);
213 void cpu_domains (u_int domains);
214 u_int cpu_faultstatus (void);
215 u_int cpu_faultaddress (void);
216 u_int cpu_get_control (void);
219 #if defined(CPU_FA526)
220 void fa526_setup (void);
221 void fa526_setttb (u_int ttb);
222 void fa526_context_switch (void);
223 void fa526_cpu_sleep (int);
224 void fa526_tlb_flushID_SE (u_int);
226 void fa526_icache_sync_range(vm_offset_t start, vm_size_t end);
227 void fa526_dcache_wbinv_all (void);
228 void fa526_dcache_wbinv_range(vm_offset_t start, vm_size_t end);
229 void fa526_dcache_inv_range (vm_offset_t start, vm_size_t end);
230 void fa526_dcache_wb_range (vm_offset_t start, vm_size_t end);
231 void fa526_idcache_wbinv_all(void);
232 void fa526_idcache_wbinv_range(vm_offset_t start, vm_size_t end);
236 #if defined(CPU_ARM9) || defined(CPU_ARM9E)
237 void arm9_setttb (u_int);
238 void arm9_tlb_flushID_SE (u_int va);
239 void arm9_context_switch (void);
242 #if defined(CPU_ARM9)
243 void arm9_icache_sync_range (vm_offset_t, vm_size_t);
245 void arm9_dcache_wbinv_all (void);
246 void arm9_dcache_wbinv_range (vm_offset_t, vm_size_t);
247 void arm9_dcache_inv_range (vm_offset_t, vm_size_t);
248 void arm9_dcache_wb_range (vm_offset_t, vm_size_t);
250 void arm9_idcache_wbinv_all (void);
251 void arm9_idcache_wbinv_range (vm_offset_t, vm_size_t);
253 void arm9_setup (void);
255 extern unsigned arm9_dcache_sets_max;
256 extern unsigned arm9_dcache_sets_inc;
257 extern unsigned arm9_dcache_index_max;
258 extern unsigned arm9_dcache_index_inc;
261 #if defined(CPU_ARM9E)
262 void arm10_setup (void);
264 u_int sheeva_control_ext (u_int, u_int);
265 void sheeva_cpu_sleep (int);
266 void sheeva_setttb (u_int);
267 void sheeva_dcache_wbinv_range (vm_offset_t, vm_size_t);
268 void sheeva_dcache_inv_range (vm_offset_t, vm_size_t);
269 void sheeva_dcache_wb_range (vm_offset_t, vm_size_t);
270 void sheeva_idcache_wbinv_range (vm_offset_t, vm_size_t);
272 void sheeva_l2cache_wbinv_range (vm_offset_t, vm_size_t);
273 void sheeva_l2cache_inv_range (vm_offset_t, vm_size_t);
274 void sheeva_l2cache_wb_range (vm_offset_t, vm_size_t);
275 void sheeva_l2cache_wbinv_all (void);
278 #if defined(CPU_MV_PJ4B)
279 void armv6_idcache_wbinv_all (void);
281 #if defined(CPU_MV_PJ4B) || defined(CPU_CORTEXA) || defined(CPU_KRAIT)
282 void armv7_setttb (u_int);
283 void armv7_idcache_wbinv_all (void);
284 void armv7_cpu_sleep (int);
285 void armv7_setup (void);
286 void armv7_drain_writebuf (void);
287 void armv7_sev (void);
289 void armadaxp_idcache_wbinv_all (void);
291 void cortexa_setup (void);
293 #if defined(CPU_MV_PJ4B)
294 void pj4b_config (void);
295 void pj4bv7_setup (void);
298 #if defined(CPU_ARM1176)
299 void arm11_drain_writebuf (void);
301 void arm11x6_setttb (u_int);
302 void arm11x6_setup (void);
303 void arm11x6_sleep (int); /* no ref. for errata */
306 #if defined(CPU_ARM9E)
307 void armv5_ec_setttb(u_int);
309 void armv5_ec_icache_sync_range(vm_offset_t, vm_size_t);
311 void armv5_ec_dcache_wbinv_all(void);
312 void armv5_ec_dcache_wbinv_range(vm_offset_t, vm_size_t);
313 void armv5_ec_dcache_inv_range(vm_offset_t, vm_size_t);
314 void armv5_ec_dcache_wb_range(vm_offset_t, vm_size_t);
316 void armv5_ec_idcache_wbinv_all(void);
317 void armv5_ec_idcache_wbinv_range(vm_offset_t, vm_size_t);
320 #if defined(CPU_ARM9) || defined(CPU_ARM9E) || \
321 defined(CPU_FA526) || \
322 defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425) || \
323 defined(CPU_XSCALE_81342)
325 void armv4_tlb_flushID (void);
326 void armv4_tlb_flushD (void);
327 void armv4_tlb_flushD_SE (u_int va);
329 void armv4_drain_writebuf (void);
330 void armv4_idcache_inv_all (void);
333 #if defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425) || \
334 defined(CPU_XSCALE_81342)
335 void xscale_cpwait (void);
337 void xscale_cpu_sleep (int mode);
339 u_int xscale_control (u_int clear, u_int bic);
341 void xscale_setttb (u_int ttb);
343 void xscale_tlb_flushID_SE (u_int va);
345 void xscale_cache_flushID (void);
346 void xscale_cache_flushI (void);
347 void xscale_cache_flushD (void);
348 void xscale_cache_flushD_SE (u_int entry);
350 void xscale_cache_cleanID (void);
351 void xscale_cache_cleanD (void);
352 void xscale_cache_cleanD_E (u_int entry);
354 void xscale_cache_clean_minidata (void);
356 void xscale_cache_purgeID (void);
357 void xscale_cache_purgeID_E (u_int entry);
358 void xscale_cache_purgeD (void);
359 void xscale_cache_purgeD_E (u_int entry);
361 void xscale_cache_syncI (void);
362 void xscale_cache_cleanID_rng (vm_offset_t start, vm_size_t end);
363 void xscale_cache_cleanD_rng (vm_offset_t start, vm_size_t end);
364 void xscale_cache_purgeID_rng (vm_offset_t start, vm_size_t end);
365 void xscale_cache_purgeD_rng (vm_offset_t start, vm_size_t end);
366 void xscale_cache_syncI_rng (vm_offset_t start, vm_size_t end);
367 void xscale_cache_flushD_rng (vm_offset_t start, vm_size_t end);
369 void xscale_context_switch (void);
371 void xscale_setup (void);
372 #endif /* CPU_XSCALE_PXA2X0 || CPU_XSCALE_IXP425 */
374 #ifdef CPU_XSCALE_81342
376 void xscalec3_l2cache_purge (void);
377 void xscalec3_cache_purgeID (void);
378 void xscalec3_cache_purgeD (void);
379 void xscalec3_cache_cleanID (void);
380 void xscalec3_cache_cleanD (void);
381 void xscalec3_cache_syncI (void);
383 void xscalec3_cache_purgeID_rng (vm_offset_t start, vm_size_t end);
384 void xscalec3_cache_purgeD_rng (vm_offset_t start, vm_size_t end);
385 void xscalec3_cache_cleanID_rng (vm_offset_t start, vm_size_t end);
386 void xscalec3_cache_cleanD_rng (vm_offset_t start, vm_size_t end);
387 void xscalec3_cache_syncI_rng (vm_offset_t start, vm_size_t end);
389 void xscalec3_l2cache_flush_rng (vm_offset_t, vm_size_t);
390 void xscalec3_l2cache_clean_rng (vm_offset_t start, vm_size_t end);
391 void xscalec3_l2cache_purge_rng (vm_offset_t start, vm_size_t end);
394 void xscalec3_setttb (u_int ttb);
395 void xscalec3_context_switch (void);
397 #endif /* CPU_XSCALE_81342 */
400 * Macros for manipulating CPU interrupts
403 #define __ARM_INTR_BITS (PSR_I | PSR_F)
405 #define __ARM_INTR_BITS (PSR_I | PSR_F | PSR_A)
408 static __inline uint32_t
409 __set_cpsr(uint32_t bic, uint32_t eor)
414 "mrs %0, cpsr\n" /* Get the CPSR */
415 "bic %1, %0, %2\n" /* Clear bits */
416 "eor %1, %1, %3\n" /* XOR bits */
417 "msr cpsr_xc, %1\n" /* Set the CPSR */
418 : "=&r" (ret), "=&r" (tmp)
419 : "r" (bic), "r" (eor) : "memory");
424 static __inline uint32_t
425 disable_interrupts(uint32_t mask)
428 return (__set_cpsr(mask & __ARM_INTR_BITS, mask & __ARM_INTR_BITS));
431 static __inline uint32_t
432 enable_interrupts(uint32_t mask)
435 return (__set_cpsr(mask & __ARM_INTR_BITS, 0));
438 static __inline uint32_t
439 restore_interrupts(uint32_t old_cpsr)
442 return (__set_cpsr(__ARM_INTR_BITS, old_cpsr & __ARM_INTR_BITS));
445 static __inline register_t
449 return (disable_interrupts(PSR_I | PSR_F));
453 intr_restore(register_t s)
456 restore_interrupts(s);
458 #undef __ARM_INTR_BITS
461 * Functions to manipulate cpu r13
462 * (in arm/arm32/setstack.S)
465 void set_stackptr (u_int mode, u_int address);
466 u_int get_stackptr (u_int mode);
472 int get_pc_str_offset (void);
475 * CPU functions from locore.S
478 void cpu_reset (void) __attribute__((__noreturn__));
481 * Cache info variables.
484 /* PRIMARY CACHE VARIABLES */
485 extern int arm_picache_size;
486 extern int arm_picache_line_size;
487 extern int arm_picache_ways;
489 extern int arm_pdcache_size; /* and unified */
490 extern int arm_pdcache_line_size;
491 extern int arm_pdcache_ways;
493 extern int arm_pcache_type;
494 extern int arm_pcache_unified;
496 extern int arm_dcache_align;
497 extern int arm_dcache_align_mask;
499 extern u_int arm_cache_level;
500 extern u_int arm_cache_loc;
501 extern u_int arm_cache_type[14];
504 #endif /* _MACHINE_CPUFUNC_H_ */
506 /* End of cpufunc.h */