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machvec.h
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1 /*
2  * Machine vector for IA-64.
3  *
4  * Copyright (C) 1999 Silicon Graphics, Inc.
5  * Copyright (C) Srinivasa Thirumalachar <[email protected]>
6  * Copyright (C) Vijay Chander <[email protected]>
7  * Copyright (C) 1999-2001, 2003-2004 Hewlett-Packard Co.
8  * David Mosberger-Tang <[email protected]>
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
79 machvec_noop (void)
80 {
81 }
82 
83 static inline void
84 machvec_noop_mm (struct mm_struct *mm)
85 {
86 }
87 
88 static inline void
89 machvec_noop_task (struct task_struct *task)
90 {
91 }
92 
93 static inline void
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_XEN_GUEST)
117 # include <asm/machvec_xen.h>
118 # elif defined (CONFIG_IA64_GENERIC)
119 
120 # ifdef MACHVEC_PLATFORM_HEADER
121 # include MACHVEC_PLATFORM_HEADER
122 # else
123 # define ia64_platform_name ia64_mv.name
124 # define platform_setup ia64_mv.setup
125 # define platform_cpu_init ia64_mv.cpu_init
126 # define platform_irq_init ia64_mv.irq_init
127 # define platform_send_ipi ia64_mv.send_ipi
128 # define platform_timer_interrupt ia64_mv.timer_interrupt
129 # define platform_global_tlb_purge ia64_mv.global_tlb_purge
130 # define platform_tlb_migrate_finish ia64_mv.tlb_migrate_finish
131 # define platform_dma_init ia64_mv.dma_init
132 # define platform_dma_get_required_mask ia64_mv.dma_get_required_mask
133 # define platform_dma_get_ops ia64_mv.dma_get_ops
134 # define platform_irq_to_vector ia64_mv.irq_to_vector
135 # define platform_local_vector_to_irq ia64_mv.local_vector_to_irq
136 # define platform_pci_get_legacy_mem ia64_mv.pci_get_legacy_mem
137 # define platform_pci_legacy_read ia64_mv.pci_legacy_read
138 # define platform_pci_legacy_write ia64_mv.pci_legacy_write
139 # define platform_inb ia64_mv.inb
140 # define platform_inw ia64_mv.inw
141 # define platform_inl ia64_mv.inl
142 # define platform_outb ia64_mv.outb
143 # define platform_outw ia64_mv.outw
144 # define platform_outl ia64_mv.outl
145 # define platform_mmiowb ia64_mv.mmiowb
146 # define platform_readb ia64_mv.readb
147 # define platform_readw ia64_mv.readw
148 # define platform_readl ia64_mv.readl
149 # define platform_readq ia64_mv.readq
150 # define platform_readb_relaxed ia64_mv.readb_relaxed
151 # define platform_readw_relaxed ia64_mv.readw_relaxed
152 # define platform_readl_relaxed ia64_mv.readl_relaxed
153 # define platform_readq_relaxed ia64_mv.readq_relaxed
154 # define platform_migrate ia64_mv.migrate
155 # define platform_setup_msi_irq ia64_mv.setup_msi_irq
156 # define platform_teardown_msi_irq ia64_mv.teardown_msi_irq
157 # define platform_pci_fixup_bus ia64_mv.pci_fixup_bus
158 # define platform_kernel_launch_event ia64_mv.kernel_launch_event
159 # endif
160 
161 /* __attribute__((__aligned__(16))) is required to make size of the
162  * structure multiple of 16 bytes.
163  * This will fillup the holes created because of section 3.3.1 in
164  * Software Conventions guide.
165  */
166 struct ia64_machine_vector {
167  const char *name;
168  ia64_mv_setup_t *setup;
169  ia64_mv_cpu_init_t *cpu_init;
170  ia64_mv_irq_init_t *irq_init;
171  ia64_mv_send_ipi_t *send_ipi;
172  ia64_mv_timer_interrupt_t *timer_interrupt;
173  ia64_mv_global_tlb_purge_t *global_tlb_purge;
174  ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish;
175  ia64_mv_dma_init *dma_init;
176  ia64_mv_dma_get_required_mask *dma_get_required_mask;
177  ia64_mv_dma_get_ops *dma_get_ops;
178  ia64_mv_irq_to_vector *irq_to_vector;
179  ia64_mv_local_vector_to_irq *local_vector_to_irq;
180  ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem;
181  ia64_mv_pci_legacy_read_t *pci_legacy_read;
182  ia64_mv_pci_legacy_write_t *pci_legacy_write;
183  ia64_mv_inb_t *inb;
184  ia64_mv_inw_t *inw;
185  ia64_mv_inl_t *inl;
186  ia64_mv_outb_t *outb;
187  ia64_mv_outw_t *outw;
188  ia64_mv_outl_t *outl;
189  ia64_mv_mmiowb_t *mmiowb;
190  ia64_mv_readb_t *readb;
191  ia64_mv_readw_t *readw;
192  ia64_mv_readl_t *readl;
193  ia64_mv_readq_t *readq;
194  ia64_mv_readb_relaxed_t *readb_relaxed;
195  ia64_mv_readw_relaxed_t *readw_relaxed;
196  ia64_mv_readl_relaxed_t *readl_relaxed;
197  ia64_mv_readq_relaxed_t *readq_relaxed;
198  ia64_mv_migrate_t *migrate;
199  ia64_mv_setup_msi_irq_t *setup_msi_irq;
200  ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
201  ia64_mv_pci_fixup_bus_t *pci_fixup_bus;
202  ia64_mv_kernel_launch_event_t *kernel_launch_event;
203 } __attribute__((__aligned__(16))); /* align attrib? see above comment */
204 
205 #define MACHVEC_INIT(name) \
206 { \
207  #name, \
208  platform_setup, \
209  platform_cpu_init, \
210  platform_irq_init, \
211  platform_send_ipi, \
212  platform_timer_interrupt, \
213  platform_global_tlb_purge, \
214  platform_tlb_migrate_finish, \
215  platform_dma_init, \
216  platform_dma_get_required_mask, \
217  platform_dma_get_ops, \
218  platform_irq_to_vector, \
219  platform_local_vector_to_irq, \
220  platform_pci_get_legacy_mem, \
221  platform_pci_legacy_read, \
222  platform_pci_legacy_write, \
223  platform_inb, \
224  platform_inw, \
225  platform_inl, \
226  platform_outb, \
227  platform_outw, \
228  platform_outl, \
229  platform_mmiowb, \
230  platform_readb, \
231  platform_readw, \
232  platform_readl, \
233  platform_readq, \
234  platform_readb_relaxed, \
235  platform_readw_relaxed, \
236  platform_readl_relaxed, \
237  platform_readq_relaxed, \
238  platform_migrate, \
239  platform_setup_msi_irq, \
240  platform_teardown_msi_irq, \
241  platform_pci_fixup_bus, \
242  platform_kernel_launch_event \
243 }
244 
245 extern struct ia64_machine_vector ia64_mv;
246 extern void machvec_init (const char *name);
247 extern void machvec_init_from_cmdline(const char *cmdline);
248 
249 # else
250 # error Unknown configuration. Update arch/ia64/include/asm/machvec.h.
251 # endif /* CONFIG_IA64_GENERIC */
252 
253 extern void swiotlb_dma_init(void);
254 extern struct dma_map_ops *dma_get_ops(struct device *);
255 
256 /*
257  * Define default versions so we can extend machvec for new platforms without having
258  * to update the machvec files for all existing platforms.
259  */
260 #ifndef platform_setup
261 # define platform_setup machvec_setup
262 #endif
263 #ifndef platform_cpu_init
264 # define platform_cpu_init machvec_noop
265 #endif
266 #ifndef platform_irq_init
267 # define platform_irq_init machvec_noop
268 #endif
269 
270 #ifndef platform_send_ipi
271 # define platform_send_ipi ia64_send_ipi /* default to architected version */
272 #endif
273 #ifndef platform_timer_interrupt
274 # define platform_timer_interrupt machvec_timer_interrupt
275 #endif
276 #ifndef platform_global_tlb_purge
277 # define platform_global_tlb_purge ia64_global_tlb_purge /* default to architected version */
278 #endif
279 #ifndef platform_tlb_migrate_finish
280 # define platform_tlb_migrate_finish machvec_noop_mm
281 #endif
282 #ifndef platform_kernel_launch_event
283 # define platform_kernel_launch_event machvec_noop
284 #endif
285 #ifndef platform_dma_init
286 # define platform_dma_init swiotlb_dma_init
287 #endif
288 #ifndef platform_dma_get_ops
289 # define platform_dma_get_ops dma_get_ops
290 #endif
291 #ifndef platform_dma_get_required_mask
292 # define platform_dma_get_required_mask ia64_dma_get_required_mask
293 #endif
294 #ifndef platform_irq_to_vector
295 # define platform_irq_to_vector __ia64_irq_to_vector
296 #endif
297 #ifndef platform_local_vector_to_irq
298 # define platform_local_vector_to_irq __ia64_local_vector_to_irq
299 #endif
300 #ifndef platform_pci_get_legacy_mem
301 # define platform_pci_get_legacy_mem ia64_pci_get_legacy_mem
302 #endif
303 #ifndef platform_pci_legacy_read
304 # define platform_pci_legacy_read ia64_pci_legacy_read
305 extern int ia64_pci_legacy_read(struct pci_bus *bus, u16 port, u32 *val, u8 size);
306 #endif
307 #ifndef platform_pci_legacy_write
308 # define platform_pci_legacy_write ia64_pci_legacy_write
309 extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size);
310 #endif
311 #ifndef platform_inb
312 # define platform_inb __ia64_inb
313 #endif
314 #ifndef platform_inw
315 # define platform_inw __ia64_inw
316 #endif
317 #ifndef platform_inl
318 # define platform_inl __ia64_inl
319 #endif
320 #ifndef platform_outb
321 # define platform_outb __ia64_outb
322 #endif
323 #ifndef platform_outw
324 # define platform_outw __ia64_outw
325 #endif
326 #ifndef platform_outl
327 # define platform_outl __ia64_outl
328 #endif
329 #ifndef platform_mmiowb
330 # define platform_mmiowb __ia64_mmiowb
331 #endif
332 #ifndef platform_readb
333 # define platform_readb __ia64_readb
334 #endif
335 #ifndef platform_readw
336 # define platform_readw __ia64_readw
337 #endif
338 #ifndef platform_readl
339 # define platform_readl __ia64_readl
340 #endif
341 #ifndef platform_readq
342 # define platform_readq __ia64_readq
343 #endif
344 #ifndef platform_readb_relaxed
345 # define platform_readb_relaxed __ia64_readb_relaxed
346 #endif
347 #ifndef platform_readw_relaxed
348 # define platform_readw_relaxed __ia64_readw_relaxed
349 #endif
350 #ifndef platform_readl_relaxed
351 # define platform_readl_relaxed __ia64_readl_relaxed
352 #endif
353 #ifndef platform_readq_relaxed
354 # define platform_readq_relaxed __ia64_readq_relaxed
355 #endif
356 #ifndef platform_migrate
357 # define platform_migrate machvec_noop_task
358 #endif
359 #ifndef platform_setup_msi_irq
360 # define platform_setup_msi_irq ((ia64_mv_setup_msi_irq_t*)NULL)
361 #endif
362 #ifndef platform_teardown_msi_irq
363 # define platform_teardown_msi_irq ((ia64_mv_teardown_msi_irq_t*)NULL)
364 #endif
365 #ifndef platform_pci_fixup_bus
366 # define platform_pci_fixup_bus machvec_noop_bus
367 #endif
368 
369 #endif /* _ASM_IA64_MACHVEC_H */
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