1 /*
2 * Machine vector for IA-64.
3 *
4 * Copyright (C) 1999 Silicon Graphics, Inc.
5 * Copyright (C) Srinivasa Thirumalachar <sprasad@engr.sgi.com>
6 * Copyright (C) Vijay Chander <vijay@engr.sgi.com>
7 * Copyright (C) 1999-2001, 2003-2004 Hewlett-Packard Co.
8 * David Mosberger-Tang <davidm@hpl.hp.com>
9 */
10 #ifndef _ASM_IA64_MACHVEC_H
11 #define _ASM_IA64_MACHVEC_H
12
13 #include <linux/types.h>
14
15 /* forward declarations: */
16 struct device;
17 struct pt_regs;
18 struct scatterlist;
19 struct page;
20 struct mm_struct;
21 struct pci_bus;
22 struct task_struct;
23 struct pci_dev;
24 struct msi_desc;
25 struct dma_attrs;
26
27 typedef void ia64_mv_setup_t (char **);
28 typedef void ia64_mv_cpu_init_t (void);
29 typedef void ia64_mv_irq_init_t (void);
30 typedef void ia64_mv_send_ipi_t (int, int, int, int);
31 typedef void ia64_mv_timer_interrupt_t (int, void *);
32 typedef void ia64_mv_global_tlb_purge_t (struct mm_struct *, unsigned long, unsigned long, unsigned long);
33 typedef void ia64_mv_tlb_migrate_finish_t (struct mm_struct *);
34 typedef u8 ia64_mv_irq_to_vector (int);
35 typedef unsigned int ia64_mv_local_vector_to_irq (u8);
36 typedef char *ia64_mv_pci_get_legacy_mem_t (struct pci_bus *);
37 typedef int ia64_mv_pci_legacy_read_t (struct pci_bus *, u16 port, u32 *val,
38 u8 size);
39 typedef int ia64_mv_pci_legacy_write_t (struct pci_bus *, u16 port, u32 val,
40 u8 size);
41 typedef void ia64_mv_migrate_t(struct task_struct * task);
42 typedef void ia64_mv_pci_fixup_bus_t (struct pci_bus *);
43 typedef void ia64_mv_kernel_launch_event_t(void);
44
45 /* DMA-mapping interface: */
46 typedef void ia64_mv_dma_init (void);
47 typedef u64 ia64_mv_dma_get_required_mask (struct device *);
48 typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
49
50 /*
51 * WARNING: The legacy I/O space is _architected_. Platforms are
52 * expected to follow this architected model (see Section 10.7 in the
53 * IA-64 Architecture Software Developer's Manual). Unfortunately,
54 * some broken machines do not follow that model, which is why we have
55 * to make the inX/outX operations part of the machine vector.
56 * Platform designers should follow the architected model whenever
57 * possible.
58 */
59 typedef unsigned int ia64_mv_inb_t (unsigned long);
60 typedef unsigned int ia64_mv_inw_t (unsigned long);
61 typedef unsigned int ia64_mv_inl_t (unsigned long);
62 typedef void ia64_mv_outb_t (unsigned char, unsigned long);
63 typedef void ia64_mv_outw_t (unsigned short, unsigned long);
64 typedef void ia64_mv_outl_t (unsigned int, unsigned long);
65 typedef void ia64_mv_mmiowb_t (void);
66 typedef unsigned char ia64_mv_readb_t (const volatile void __iomem *);
67 typedef unsigned short ia64_mv_readw_t (const volatile void __iomem *);
68 typedef unsigned int ia64_mv_readl_t (const volatile void __iomem *);
69 typedef unsigned long ia64_mv_readq_t (const volatile void __iomem *);
70 typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
71 typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
72 typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
73 typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
74
75 typedef int ia64_mv_setup_msi_irq_t (struct pci_dev *pdev, struct msi_desc *);
76 typedef void ia64_mv_teardown_msi_irq_t (unsigned int irq);
77
78 static inline void
machvec_noop(void)79 machvec_noop (void)
80 {
81 }
82
83 static inline void
machvec_noop_mm(struct mm_struct * mm)84 machvec_noop_mm (struct mm_struct *mm)
85 {
86 }
87
88 static inline void
machvec_noop_task(struct task_struct * task)89 machvec_noop_task (struct task_struct *task)
90 {
91 }
92
93 static inline void
machvec_noop_bus(struct pci_bus * bus)94 machvec_noop_bus (struct pci_bus *bus)
95 {
96 }
97
98 extern void machvec_setup (char **);
99 extern void machvec_timer_interrupt (int, void *);
100 extern void machvec_tlb_migrate_finish (struct mm_struct *);
101
102 # if defined (CONFIG_IA64_HP_SIM)
103 # include <asm/machvec_hpsim.h>
104 # elif defined (CONFIG_IA64_DIG)
105 # include <asm/machvec_dig.h>
106 # elif defined(CONFIG_IA64_DIG_VTD)
107 # include <asm/machvec_dig_vtd.h>
108 # elif defined (CONFIG_IA64_HP_ZX1)
109 # include <asm/machvec_hpzx1.h>
110 # elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
111 # include <asm/machvec_hpzx1_swiotlb.h>
112 # elif defined (CONFIG_IA64_SGI_SN2)
113 # include <asm/machvec_sn2.h>
114 # elif defined (CONFIG_IA64_SGI_UV)
115 # include <asm/machvec_uv.h>
116 # elif defined (CONFIG_IA64_GENERIC)
117
118 # ifdef MACHVEC_PLATFORM_HEADER
119 # include MACHVEC_PLATFORM_HEADER
120 # else
121 # define ia64_platform_name ia64_mv.name
122 # define platform_setup ia64_mv.setup
123 # define platform_cpu_init ia64_mv.cpu_init
124 # define platform_irq_init ia64_mv.irq_init
125 # define platform_send_ipi ia64_mv.send_ipi
126 # define platform_timer_interrupt ia64_mv.timer_interrupt
127 # define platform_global_tlb_purge ia64_mv.global_tlb_purge
128 # define platform_tlb_migrate_finish ia64_mv.tlb_migrate_finish
129 # define platform_dma_init ia64_mv.dma_init
130 # define platform_dma_get_required_mask ia64_mv.dma_get_required_mask
131 # define platform_dma_get_ops ia64_mv.dma_get_ops
132 # define platform_irq_to_vector ia64_mv.irq_to_vector
133 # define platform_local_vector_to_irq ia64_mv.local_vector_to_irq
134 # define platform_pci_get_legacy_mem ia64_mv.pci_get_legacy_mem
135 # define platform_pci_legacy_read ia64_mv.pci_legacy_read
136 # define platform_pci_legacy_write ia64_mv.pci_legacy_write
137 # define platform_inb ia64_mv.inb
138 # define platform_inw ia64_mv.inw
139 # define platform_inl ia64_mv.inl
140 # define platform_outb ia64_mv.outb
141 # define platform_outw ia64_mv.outw
142 # define platform_outl ia64_mv.outl
143 # define platform_mmiowb ia64_mv.mmiowb
144 # define platform_readb ia64_mv.readb
145 # define platform_readw ia64_mv.readw
146 # define platform_readl ia64_mv.readl
147 # define platform_readq ia64_mv.readq
148 # define platform_readb_relaxed ia64_mv.readb_relaxed
149 # define platform_readw_relaxed ia64_mv.readw_relaxed
150 # define platform_readl_relaxed ia64_mv.readl_relaxed
151 # define platform_readq_relaxed ia64_mv.readq_relaxed
152 # define platform_migrate ia64_mv.migrate
153 # define platform_setup_msi_irq ia64_mv.setup_msi_irq
154 # define platform_teardown_msi_irq ia64_mv.teardown_msi_irq
155 # define platform_pci_fixup_bus ia64_mv.pci_fixup_bus
156 # define platform_kernel_launch_event ia64_mv.kernel_launch_event
157 # endif
158
159 /* __attribute__((__aligned__(16))) is required to make size of the
160 * structure multiple of 16 bytes.
161 * This will fillup the holes created because of section 3.3.1 in
162 * Software Conventions guide.
163 */
164 struct ia64_machine_vector {
165 const char *name;
166 ia64_mv_setup_t *setup;
167 ia64_mv_cpu_init_t *cpu_init;
168 ia64_mv_irq_init_t *irq_init;
169 ia64_mv_send_ipi_t *send_ipi;
170 ia64_mv_timer_interrupt_t *timer_interrupt;
171 ia64_mv_global_tlb_purge_t *global_tlb_purge;
172 ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish;
173 ia64_mv_dma_init *dma_init;
174 ia64_mv_dma_get_required_mask *dma_get_required_mask;
175 ia64_mv_dma_get_ops *dma_get_ops;
176 ia64_mv_irq_to_vector *irq_to_vector;
177 ia64_mv_local_vector_to_irq *local_vector_to_irq;
178 ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem;
179 ia64_mv_pci_legacy_read_t *pci_legacy_read;
180 ia64_mv_pci_legacy_write_t *pci_legacy_write;
181 ia64_mv_inb_t *inb;
182 ia64_mv_inw_t *inw;
183 ia64_mv_inl_t *inl;
184 ia64_mv_outb_t *outb;
185 ia64_mv_outw_t *outw;
186 ia64_mv_outl_t *outl;
187 ia64_mv_mmiowb_t *mmiowb;
188 ia64_mv_readb_t *readb;
189 ia64_mv_readw_t *readw;
190 ia64_mv_readl_t *readl;
191 ia64_mv_readq_t *readq;
192 ia64_mv_readb_relaxed_t *readb_relaxed;
193 ia64_mv_readw_relaxed_t *readw_relaxed;
194 ia64_mv_readl_relaxed_t *readl_relaxed;
195 ia64_mv_readq_relaxed_t *readq_relaxed;
196 ia64_mv_migrate_t *migrate;
197 ia64_mv_setup_msi_irq_t *setup_msi_irq;
198 ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
199 ia64_mv_pci_fixup_bus_t *pci_fixup_bus;
200 ia64_mv_kernel_launch_event_t *kernel_launch_event;
201 } __attribute__((__aligned__(16))); /* align attrib? see above comment */
202
203 #define MACHVEC_INIT(name) \
204 { \
205 #name, \
206 platform_setup, \
207 platform_cpu_init, \
208 platform_irq_init, \
209 platform_send_ipi, \
210 platform_timer_interrupt, \
211 platform_global_tlb_purge, \
212 platform_tlb_migrate_finish, \
213 platform_dma_init, \
214 platform_dma_get_required_mask, \
215 platform_dma_get_ops, \
216 platform_irq_to_vector, \
217 platform_local_vector_to_irq, \
218 platform_pci_get_legacy_mem, \
219 platform_pci_legacy_read, \
220 platform_pci_legacy_write, \
221 platform_inb, \
222 platform_inw, \
223 platform_inl, \
224 platform_outb, \
225 platform_outw, \
226 platform_outl, \
227 platform_mmiowb, \
228 platform_readb, \
229 platform_readw, \
230 platform_readl, \
231 platform_readq, \
232 platform_readb_relaxed, \
233 platform_readw_relaxed, \
234 platform_readl_relaxed, \
235 platform_readq_relaxed, \
236 platform_migrate, \
237 platform_setup_msi_irq, \
238 platform_teardown_msi_irq, \
239 platform_pci_fixup_bus, \
240 platform_kernel_launch_event \
241 }
242
243 extern struct ia64_machine_vector ia64_mv;
244 extern void machvec_init (const char *name);
245 extern void machvec_init_from_cmdline(const char *cmdline);
246
247 # else
248 # error Unknown configuration. Update arch/ia64/include/asm/machvec.h.
249 # endif /* CONFIG_IA64_GENERIC */
250
251 extern void swiotlb_dma_init(void);
252 extern struct dma_map_ops *dma_get_ops(struct device *);
253
254 /*
255 * Define default versions so we can extend machvec for new platforms without having
256 * to update the machvec files for all existing platforms.
257 */
258 #ifndef platform_setup
259 # define platform_setup machvec_setup
260 #endif
261 #ifndef platform_cpu_init
262 # define platform_cpu_init machvec_noop
263 #endif
264 #ifndef platform_irq_init
265 # define platform_irq_init machvec_noop
266 #endif
267
268 #ifndef platform_send_ipi
269 # define platform_send_ipi ia64_send_ipi /* default to architected version */
270 #endif
271 #ifndef platform_timer_interrupt
272 # define platform_timer_interrupt machvec_timer_interrupt
273 #endif
274 #ifndef platform_global_tlb_purge
275 # define platform_global_tlb_purge ia64_global_tlb_purge /* default to architected version */
276 #endif
277 #ifndef platform_tlb_migrate_finish
278 # define platform_tlb_migrate_finish machvec_noop_mm
279 #endif
280 #ifndef platform_kernel_launch_event
281 # define platform_kernel_launch_event machvec_noop
282 #endif
283 #ifndef platform_dma_init
284 # define platform_dma_init swiotlb_dma_init
285 #endif
286 #ifndef platform_dma_get_ops
287 # define platform_dma_get_ops dma_get_ops
288 #endif
289 #ifndef platform_dma_get_required_mask
290 # define platform_dma_get_required_mask ia64_dma_get_required_mask
291 #endif
292 #ifndef platform_irq_to_vector
293 # define platform_irq_to_vector __ia64_irq_to_vector
294 #endif
295 #ifndef platform_local_vector_to_irq
296 # define platform_local_vector_to_irq __ia64_local_vector_to_irq
297 #endif
298 #ifndef platform_pci_get_legacy_mem
299 # define platform_pci_get_legacy_mem ia64_pci_get_legacy_mem
300 #endif
301 #ifndef platform_pci_legacy_read
302 # define platform_pci_legacy_read ia64_pci_legacy_read
303 extern int ia64_pci_legacy_read(struct pci_bus *bus, u16 port, u32 *val, u8 size);
304 #endif
305 #ifndef platform_pci_legacy_write
306 # define platform_pci_legacy_write ia64_pci_legacy_write
307 extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size);
308 #endif
309 #ifndef platform_inb
310 # define platform_inb __ia64_inb
311 #endif
312 #ifndef platform_inw
313 # define platform_inw __ia64_inw
314 #endif
315 #ifndef platform_inl
316 # define platform_inl __ia64_inl
317 #endif
318 #ifndef platform_outb
319 # define platform_outb __ia64_outb
320 #endif
321 #ifndef platform_outw
322 # define platform_outw __ia64_outw
323 #endif
324 #ifndef platform_outl
325 # define platform_outl __ia64_outl
326 #endif
327 #ifndef platform_mmiowb
328 # define platform_mmiowb __ia64_mmiowb
329 #endif
330 #ifndef platform_readb
331 # define platform_readb __ia64_readb
332 #endif
333 #ifndef platform_readw
334 # define platform_readw __ia64_readw
335 #endif
336 #ifndef platform_readl
337 # define platform_readl __ia64_readl
338 #endif
339 #ifndef platform_readq
340 # define platform_readq __ia64_readq
341 #endif
342 #ifndef platform_readb_relaxed
343 # define platform_readb_relaxed __ia64_readb_relaxed
344 #endif
345 #ifndef platform_readw_relaxed
346 # define platform_readw_relaxed __ia64_readw_relaxed
347 #endif
348 #ifndef platform_readl_relaxed
349 # define platform_readl_relaxed __ia64_readl_relaxed
350 #endif
351 #ifndef platform_readq_relaxed
352 # define platform_readq_relaxed __ia64_readq_relaxed
353 #endif
354 #ifndef platform_migrate
355 # define platform_migrate machvec_noop_task
356 #endif
357 #ifndef platform_setup_msi_irq
358 # define platform_setup_msi_irq ((ia64_mv_setup_msi_irq_t*)NULL)
359 #endif
360 #ifndef platform_teardown_msi_irq
361 # define platform_teardown_msi_irq ((ia64_mv_teardown_msi_irq_t*)NULL)
362 #endif
363 #ifndef platform_pci_fixup_bus
364 # define platform_pci_fixup_bus machvec_noop_bus
365 #endif
366
367 #endif /* _ASM_IA64_MACHVEC_H */
368