xref: /titanic_50/usr/src/uts/sun4v/sys/machsystm.h (revision 29e83d4b25fd82feb8e0e0fbe89f7e2a8438533d)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_MACHSYSTM_H
27 #define	_SYS_MACHSYSTM_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 /*
32  * Numerous platform-dependent interfaces that don't seem to belong
33  * in any other header file.
34  *
35  * This file should not be included by code that purports to be
36  * platform-independent.
37  */
38 
39 #ifndef _ASM
40 #include <sys/types.h>
41 #include <sys/scb.h>
42 #include <sys/varargs.h>
43 #include <sys/machparam.h>
44 #include <sys/thread.h>
45 #include <vm/seg_enum.h>
46 #include <sys/processor.h>
47 #include <sys/sunddi.h>
48 #include <sys/memlist.h>
49 #endif /* _ASM */
50 
51 #ifdef __cplusplus
52 extern "C" {
53 #endif
54 
55 #ifdef _KERNEL
56 
57 #ifndef _ASM
58 /*
59  * The following enum types determine how interrupts are distributed
60  * on a sun4u system.
61  */
62 enum intr_policies {
63 	/*
64 	 * Target interrupt at the CPU running the add_intrspec
65 	 * thread. Also used to target all interrupts at the panicing
66 	 * CPU.
67 	 */
68 	INTR_CURRENT_CPU = 0,
69 
70 	/*
71 	 * Target all interrupts at the boot cpu
72 	 */
73 	INTR_BOOT_CPU,
74 
75 	/*
76 	 * Flat distribution of all interrupts
77 	 */
78 	INTR_FLAT_DIST,
79 
80 	/*
81 	 * Weighted distribution of all interrupts
82 	 */
83 	INTR_WEIGHTED_DIST
84 };
85 
86 
87 /*
88  * Structure that defines the interrupt distribution list. It contains
89  * enough info about the interrupt so that it can callback the parent
90  * nexus driver and retarget the interrupt to a different CPU.
91  */
92 struct intr_dist {
93 	struct intr_dist *next;	/* link to next in list */
94 	void (*func)(void *);	/* Callback function */
95 	void *arg;		/* Nexus parent callback arg 1 */
96 };
97 
98 /*
99  * Miscellaneous cpu_state changes
100  */
101 extern void power_down(const char *);
102 extern void do_shutdown(void);
103 
104 /*
105  * Number of seconds until power is shut off
106  */
107 extern int thermal_powerdown_delay;
108 
109 
110 /*
111  * prom-related
112  */
113 extern int obpdebug;
114 extern int forthdebug_supported;
115 extern uint_t tba_taken_over;
116 extern void forthdebug_init(void);
117 extern void init_vx_handler(void);
118 extern void kern_preprom(void);
119 extern void kern_postprom(void);
120 
121 /*
122  * externally (debugger or prom) initiated panic
123  */
124 extern struct regs sync_reg_buf;
125 extern uint64_t sync_tt;
126 extern void sync_handler(void);
127 
128 /*
129  * Trap-related
130  */
131 struct regs;
132 extern void trap(struct regs *rp, caddr_t addr, uint32_t type,
133     uint32_t mmu_fsr);
134 extern void *get_tba(void);
135 extern void *set_tba(void *);
136 extern caddr_t set_trap_table(void);
137 extern struct scb trap_table;
138 
139 struct trap_info {
140 	struct regs *trap_regs;
141 	uint_t	trap_type;
142 	caddr_t trap_addr;
143 	uint_t	trap_mmu_fsr;
144 };
145 
146 /*
147  * misc. primitives
148  */
149 #define	PROM_CFGHDL_TO_CPUID(x)	 (x  & ~(0xful << 28))
150 
151 extern void debug_flush_windows(void);
152 extern void flush_windows(void);
153 extern int getprocessorid(void);
154 extern void reestablish_curthread(void);
155 
156 extern void stphys(uint64_t physaddr, int value);
157 extern int ldphys(uint64_t physaddr);
158 extern void stdphys(uint64_t physaddr, uint64_t value);
159 extern uint64_t lddphys(uint64_t physaddr);
160 
161 extern void stphysio(u_longlong_t physaddr, uint_t value);
162 extern uint_t ldphysio(u_longlong_t physaddr);
163 extern void sthphysio(u_longlong_t physaddr, ushort_t value);
164 extern ushort_t ldhphysio(u_longlong_t physaddr);
165 extern void stbphysio(u_longlong_t physaddr, uchar_t value);
166 extern uchar_t ldbphysio(u_longlong_t physaddr);
167 extern void stdphysio(u_longlong_t physaddr, u_longlong_t value);
168 extern u_longlong_t lddphysio(u_longlong_t physaddr);
169 
170 extern int pf_is_dmacapable(pfn_t);
171 
172 extern int dip_to_cpu_id(dev_info_t *dip, processorid_t *cpu_id);
173 
174 extern void set_cmp_error_steering(void);
175 
176 /*
177  * SPARCv9 %ver register and field definitions
178  */
179 
180 #define	ULTRA_VER_MANUF(x)	((x) >> 48)
181 #define	ULTRA_VER_IMPL(x)	(((x) >> 32) & 0xFFFF)
182 #define	ULTRA_VER_MASK(x)	(((x) >> 24) & 0xFF)
183 
184 extern uint64_t ultra_getver(void);
185 
186 /*
187  * bootup-time
188  */
189 extern void segnf_init(void);
190 extern void kern_setup1(void);
191 extern void startup(void);
192 extern void post_startup(void);
193 extern void install_va_to_tte(void);
194 extern void setwstate(uint_t);
195 extern void create_va_to_tte(void);
196 extern int memscrub_init(void);
197 
198 extern void kcpc_hw_init(void);
199 extern void kcpc_hw_startup_cpu(ushort_t);
200 extern int kcpc_hw_load_pcbe(void);
201 
202 /*
203  * Interrupts
204  */
205 struct cpu;
206 extern struct cpu cpu0;
207 extern struct scb *set_tbr(struct scb *);
208 
209 extern uint_t disable_vec_intr(void);
210 extern void enable_vec_intr(uint_t);
211 extern void setintrenable(int);
212 
213 extern void intr_dist_add(void (*f)(void *), void *);
214 extern void intr_dist_rem(void (*f)(void *), void *);
215 extern void intr_dist_add_weighted(void (*f)(void *, int32_t, int32_t), void *);
216 extern void intr_dist_rem_weighted(void (*f)(void *, int32_t, int32_t), void *);
217 
218 extern uint32_t intr_dist_cpuid(void);
219 extern uint32_t intr_dist_mycpuid(void);
220 
221 void intr_dist_cpuid_add_device_weight(uint32_t cpuid, dev_info_t *dip,
222 		int32_t weight);
223 void intr_dist_cpuid_rem_device_weight(uint32_t cpuid, dev_info_t *dip);
224 
225 extern void intr_redist_all_cpus(void);
226 extern void intr_redist_all_cpus_shutdown(void);
227 
228 extern void send_dirint(int, int);
229 extern void setsoftint(uint64_t);
230 extern void setsoftint_tl1(uint64_t, uint64_t);
231 extern void siron(void);
232 extern void intr_enqueue_req(uint_t pil, uint64_t inum);
233 extern void intr_dequeue_req(uint_t pil, uint64_t inum);
234 extern void wr_clr_softint(uint_t);
235 
236 /*
237  * Time- and %tick-related
238  */
239 extern hrtime_t rdtick(void);
240 extern void tick_write_delta(uint64_t);
241 extern void tickcmpr_set(uint64_t);
242 extern void tickcmpr_reset(void);
243 extern void tickcmpr_disable(void);
244 extern int tickcmpr_disabled(void);
245 extern uint64_t cbe_level14_inum;
246 
247 /*
248  * contiguous memory
249  */
250 extern void *contig_mem_alloc(size_t);
251 extern void *contig_mem_alloc_align(size_t, size_t);
252 extern void contig_mem_free(void *, size_t);
253 
254 /*
255  * Caches
256  */
257 extern int vac;
258 extern int cache;
259 extern int use_mp;
260 extern uint_t vac_mask;
261 extern uint64_t ecache_flushaddr;
262 extern int ecache_alignsize;	/* Maximum ecache linesize for struct align */
263 extern int ecache_setsize;	/* Maximum ecache setsize possible */
264 extern int cpu_setsize;		/* Maximum ecache setsize of configured cpus */
265 
266 /*
267  * VM
268  */
269 extern int do_pg_coloring;
270 extern int use_page_coloring;
271 extern uint_t vac_colors_mask;
272 
273 extern caddr_t get_mmfsa_scratchpad(void);
274 extern void set_mmfsa_scratchpad(caddr_t);
275 extern int ndata_alloc_mmfsa(struct memlist *);
276 extern int ndata_alloc_page_freelists(struct memlist *, int);
277 extern int ndata_alloc_dmv(struct memlist *);
278 extern int ndata_alloc_tsbs(struct memlist *, pgcnt_t);
279 extern int ndata_alloc_hat(struct memlist *, pgcnt_t, pgcnt_t);
280 extern caddr_t alloc_page_freelists(int, caddr_t, int);
281 extern caddr_t alloc_hme_buckets(caddr_t, int);
282 extern size_t page_ctrs_sz(void);
283 extern caddr_t page_ctrs_alloc(caddr_t);
284 extern void page_freelist_coalesce_all(int);
285 extern void ppmapinit(void);
286 extern void hwblkpagecopy(const void *, void *);
287 extern void hw_pa_bcopy32(uint64_t, uint64_t);
288 
289 extern int pp_slots;
290 extern int pp_consistent_coloring;
291 
292 /*
293  * ppcopy/hwblkpagecopy interaction.  See ppage.c.
294  */
295 #define	PPAGE_STORE_VCOLORING	0x1 /* use vcolors to maintain consistency */
296 #define	PPAGE_LOAD_VCOLORING	0x2 /* use vcolors to maintain consistency */
297 #define	PPAGE_STORES_POLLUTE	0x4 /* stores pollute VAC */
298 #define	PPAGE_LOADS_POLLUTE	0x8 /* loads pollute VAC */
299 
300 /*
301  * VIS-accelerated copy/zero
302  */
303 extern int use_hw_bcopy;
304 extern uint_t hw_copy_limit_1;
305 extern uint_t hw_copy_limit_2;
306 extern uint_t hw_copy_limit_4;
307 extern uint_t hw_copy_limit_8;
308 extern int use_hw_bzero;
309 
310 #ifdef CHEETAH
311 #define	VIS_COPY_THRESHOLD 256
312 #else
313 #define	VIS_COPY_THRESHOLD 900
314 #endif
315 
316 /*
317  * MP
318  */
319 extern void idle_other_cpus(void);
320 extern void resume_other_cpus(void);
321 extern void stop_other_cpus(void);
322 extern void idle_stop_xcall(void);
323 extern void set_idle_cpu(int);
324 extern void unset_idle_cpu(int);
325 extern void mp_cpu_quiesce(struct cpu *);
326 extern int stopcpu_bycpuid(int);
327 
328 /*
329  * Panic at TL > 0
330  */
331 extern uint64_t cpu_pa[];
332 extern void ptl1_init_cpu(struct cpu *);
333 
334 /*
335  * Defines for DR interfaces
336  */
337 #define	DEVI_BRANCH_CHILD	0x01	/* Walk immediate children of root  */
338 #define	DEVI_BRANCH_CONFIGURE	0x02	/* Configure branch after create    */
339 #define	DEVI_BRANCH_DESTROY	0x04	/* Destroy branch after unconfigure */
340 #define	DEVI_BRANCH_EVENT	0x08	/* Post NDI event		    */
341 #define	DEVI_BRANCH_PROM	0x10	/* Branches derived from PROM nodes */
342 #define	DEVI_BRANCH_SID		0x20	/* SID node branches		    */
343 #define	DEVI_BRANCH_ROOT	0x40	/* Node is the root of a branch	    */
344 
345 typedef struct devi_branch {
346 	void		*arg;
347 	void		(*devi_branch_callback)(dev_info_t *, void *, uint_t);
348 	int		type;
349 	union {
350 		int	(*prom_branch_select)(pnode_t, void *, uint_t);
351 		int	(*sid_branch_create)(dev_info_t *, void *, uint_t);
352 	} create;
353 } devi_branch_t;
354 
355 
356 /*
357  * Prototypes which really belongs to sunddi.c, and should be moved to
358  * sunddi.c if there is another platform using these calls.
359  */
360 extern int e_ddi_branch_create(dev_info_t *pdip, devi_branch_t *bp,
361     dev_info_t **dipp, uint_t flags);
362 extern int e_ddi_branch_configure(dev_info_t *rdip, dev_info_t **dipp,
363     uint_t flags);
364 extern int e_ddi_branch_unconfigure(dev_info_t *rdip, dev_info_t **dipp,
365     uint_t flags);
366 extern int e_ddi_branch_destroy(dev_info_t *rdip, dev_info_t **dipp,
367     uint_t flags);
368 extern void e_ddi_branch_hold(dev_info_t *rdip);
369 extern void e_ddi_branch_rele(dev_info_t *rdip);
370 extern int e_ddi_branch_held(dev_info_t *rdip);
371 extern int e_ddi_branch_referenced(dev_info_t *rdip,
372     int (*cb)(dev_info_t *dip, void *, uint_t), void *arg);
373 
374 /*
375  * Constants which define the "hole" in the 64-bit sfmmu address space.
376  * These are set to specific values by the CPU module code.
377  */
378 extern caddr_t	hole_start, hole_end;
379 
380 /* kpm mapping window */
381 extern size_t	kpm_size;
382 extern uchar_t	kpm_size_shift;
383 extern caddr_t	kpm_vbase;
384 
385 #define	INVALID_VADDR(a)	(((a) >= hole_start && (a) < hole_end))
386 #define	VA_ADDRESS_SPACE_BITS		64
387 #define	RA_ADDRESS_SPACE_BITS		56
388 #define	MAX_REAL_ADDRESS		(1ull << RA_ADDRESS_SPACE_BITS)
389 #define	DEFAULT_VA_ADDRESS_SPACE_BITS	48	/* def. Niagara (broken MD) */
390 #define	PAGESIZE_MASK_BITS		16
391 #define	MAX_PAGESIZE_MASK		((1<<PAGESIZE_MASK_BITS) - 1)
392 
393 extern void adjust_hw_copy_limits(int);
394 
395 struct kdi;
396 
397 void	cpu_kdi_init(struct kdi *);
398 
399 /*
400  * flush instruction and data caches
401  */
402 void	kdi_flush_caches(void);
403 
404 struct async_flt;
405 
406 /*
407  * take pending fp traps if fpq present
408  * this function is also defined in fpusystm.h
409  */
410 void	syncfpu(void);
411 
412 void	cpu_faulted_enter(struct cpu *);
413 void	cpu_faulted_exit(struct cpu *);
414 
415 int	cpu_get_mem_name(uint64_t synd, uint64_t *afsr, uint64_t afar,
416 	    char *buf, int buflen, int *lenp);
417 int	cpu_get_mem_info(uint64_t synd, uint64_t afar,
418 	    uint64_t *mem_sizep, uint64_t *seg_sizep, uint64_t *bank_sizep,
419 	    int *segsp, int *banksp, int *mcidp);
420 size_t	cpu_get_name_bufsize();
421 
422 /*
423  * ecache scrub operations
424  */
425 void cpu_init_cache_scrub(void);
426 
427 /*
428  * clock/tick register operations
429  */
430 void	cpu_init_tick_freq(void);
431 
432 /*
433  * stick synchronization
434  */
435 void	sticksync_slave(void);
436 void	sticksync_master(void);
437 
438 #endif /* _ASM */
439 
440 /*
441  * Actions for set_error_enable_tl1
442  */
443 #define	EER_SET_ABSOLUTE	0x0
444 #define	EER_SET_SETBITS		0x1
445 #define	EER_SET_CLRBITS		0x2
446 
447 /*
448  * HVDUMP_SIZE_MAX set as 64k due to limitiation by intrq_alloc()
449  */
450 
451 #define	HVDUMP_SIZE_MAX		0x10000
452 #define	HVDUMP_SIZE_DEFAULT	0x8000
453 
454 /*
455  * HV TOD service retry in usecs
456  */
457 
458 #define	HV_TOD_RETRY_THRESH	100
459 #define	HV_TOD_WAIT_USEC	5
460 
461 /*
462  * Interrupt Queues and Error Queues
463  */
464 
465 #define	INTR_CPU_Q	0x3c
466 #define	INTR_DEV_Q	0x3d
467 #define	CPU_RQ		0x3e
468 #define	CPU_NRQ		0x3f
469 #define	DEFAULT_CPU_Q_ENTRIES	0x100
470 #define	DEFAULT_DEV_Q_ENTRIES	0x100
471 #define	INTR_REPORT_SIZE	64
472 
473 #ifndef	_ASM
474 extern uint64_t cpu_q_entries;
475 extern uint64_t dev_q_entries;
476 extern uint64_t cpu_rq_entries;
477 extern uint64_t cpu_nrq_entries;
478 extern uint64_t ncpu_guest_max;
479 #endif /* _ASM */
480 
481 #endif /* _KERNEL */
482 
483 #ifdef __cplusplus
484 }
485 #endif
486 
487 #endif	/* _SYS_MACHSYSTM_H */
488