Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
[linux-2.6.git] / include / asm-ia64 / machvec.h
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/config.h>
14 #include <linux/types.h>
15
16 /* forward declarations: */
17 struct device;
18 struct pt_regs;
19 struct scatterlist;
20 struct page;
21 struct mm_struct;
22 struct pci_bus;
23
24 typedef void ia64_mv_setup_t (char **);
25 typedef void ia64_mv_cpu_init_t (void);
26 typedef void ia64_mv_irq_init_t (void);
27 typedef void ia64_mv_send_ipi_t (int, int, int, int);
28 typedef void ia64_mv_timer_interrupt_t (int, void *, struct pt_regs *);
29 typedef void ia64_mv_global_tlb_purge_t (struct mm_struct *, unsigned long, unsigned long, unsigned long);
30 typedef void ia64_mv_tlb_migrate_finish_t (struct mm_struct *);
31 typedef unsigned int ia64_mv_local_vector_to_irq (u8);
32 typedef char *ia64_mv_pci_get_legacy_mem_t (struct pci_bus *);
33 typedef int ia64_mv_pci_legacy_read_t (struct pci_bus *, u16 port, u32 *val,
34                                        u8 size);
35 typedef int ia64_mv_pci_legacy_write_t (struct pci_bus *, u16 port, u32 val,
36                                         u8 size);
37
38 /* DMA-mapping interface: */
39 typedef void ia64_mv_dma_init (void);
40 typedef void *ia64_mv_dma_alloc_coherent (struct device *, size_t, dma_addr_t *, gfp_t);
41 typedef void ia64_mv_dma_free_coherent (struct device *, size_t, void *, dma_addr_t);
42 typedef dma_addr_t ia64_mv_dma_map_single (struct device *, void *, size_t, int);
43 typedef void ia64_mv_dma_unmap_single (struct device *, dma_addr_t, size_t, int);
44 typedef int ia64_mv_dma_map_sg (struct device *, struct scatterlist *, int, int);
45 typedef void ia64_mv_dma_unmap_sg (struct device *, struct scatterlist *, int, int);
46 typedef void ia64_mv_dma_sync_single_for_cpu (struct device *, dma_addr_t, size_t, int);
47 typedef void ia64_mv_dma_sync_sg_for_cpu (struct device *, struct scatterlist *, int, int);
48 typedef void ia64_mv_dma_sync_single_for_device (struct device *, dma_addr_t, size_t, int);
49 typedef void ia64_mv_dma_sync_sg_for_device (struct device *, struct scatterlist *, int, int);
50 typedef int ia64_mv_dma_mapping_error (dma_addr_t dma_addr);
51 typedef int ia64_mv_dma_supported (struct device *, u64);
52
53 /*
54  * WARNING: The legacy I/O space is _architected_.  Platforms are
55  * expected to follow this architected model (see Section 10.7 in the
56  * IA-64 Architecture Software Developer's Manual).  Unfortunately,
57  * some broken machines do not follow that model, which is why we have
58  * to make the inX/outX operations part of the machine vector.
59  * Platform designers should follow the architected model whenever
60  * possible.
61  */
62 typedef unsigned int ia64_mv_inb_t (unsigned long);
63 typedef unsigned int ia64_mv_inw_t (unsigned long);
64 typedef unsigned int ia64_mv_inl_t (unsigned long);
65 typedef void ia64_mv_outb_t (unsigned char, unsigned long);
66 typedef void ia64_mv_outw_t (unsigned short, unsigned long);
67 typedef void ia64_mv_outl_t (unsigned int, unsigned long);
68 typedef void ia64_mv_mmiowb_t (void);
69 typedef unsigned char ia64_mv_readb_t (const volatile void __iomem *);
70 typedef unsigned short ia64_mv_readw_t (const volatile void __iomem *);
71 typedef unsigned int ia64_mv_readl_t (const volatile void __iomem *);
72 typedef unsigned long ia64_mv_readq_t (const volatile void __iomem *);
73 typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
74 typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
75 typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
76 typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
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 extern void machvec_setup (char **);
89 extern void machvec_timer_interrupt (int, void *, struct pt_regs *);
90 extern void machvec_dma_sync_single (struct device *, dma_addr_t, size_t, int);
91 extern void machvec_dma_sync_sg (struct device *, struct scatterlist *, int, int);
92 extern void machvec_tlb_migrate_finish (struct mm_struct *);
93
94 # if defined (CONFIG_IA64_HP_SIM)
95 #  include <asm/machvec_hpsim.h>
96 # elif defined (CONFIG_IA64_DIG)
97 #  include <asm/machvec_dig.h>
98 # elif defined (CONFIG_IA64_HP_ZX1)
99 #  include <asm/machvec_hpzx1.h>
100 # elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
101 #  include <asm/machvec_hpzx1_swiotlb.h>
102 # elif defined (CONFIG_IA64_SGI_SN2)
103 #  include <asm/machvec_sn2.h>
104 # elif defined (CONFIG_IA64_GENERIC)
105
106 # ifdef MACHVEC_PLATFORM_HEADER
107 #  include MACHVEC_PLATFORM_HEADER
108 # else
109 #  define platform_name         ia64_mv.name
110 #  define platform_setup        ia64_mv.setup
111 #  define platform_cpu_init     ia64_mv.cpu_init
112 #  define platform_irq_init     ia64_mv.irq_init
113 #  define platform_send_ipi     ia64_mv.send_ipi
114 #  define platform_timer_interrupt      ia64_mv.timer_interrupt
115 #  define platform_global_tlb_purge     ia64_mv.global_tlb_purge
116 #  define platform_tlb_migrate_finish   ia64_mv.tlb_migrate_finish
117 #  define platform_dma_init             ia64_mv.dma_init
118 #  define platform_dma_alloc_coherent   ia64_mv.dma_alloc_coherent
119 #  define platform_dma_free_coherent    ia64_mv.dma_free_coherent
120 #  define platform_dma_map_single       ia64_mv.dma_map_single
121 #  define platform_dma_unmap_single     ia64_mv.dma_unmap_single
122 #  define platform_dma_map_sg           ia64_mv.dma_map_sg
123 #  define platform_dma_unmap_sg         ia64_mv.dma_unmap_sg
124 #  define platform_dma_sync_single_for_cpu ia64_mv.dma_sync_single_for_cpu
125 #  define platform_dma_sync_sg_for_cpu  ia64_mv.dma_sync_sg_for_cpu
126 #  define platform_dma_sync_single_for_device ia64_mv.dma_sync_single_for_device
127 #  define platform_dma_sync_sg_for_device ia64_mv.dma_sync_sg_for_device
128 #  define platform_dma_mapping_error            ia64_mv.dma_mapping_error
129 #  define platform_dma_supported        ia64_mv.dma_supported
130 #  define platform_local_vector_to_irq  ia64_mv.local_vector_to_irq
131 #  define platform_pci_get_legacy_mem   ia64_mv.pci_get_legacy_mem
132 #  define platform_pci_legacy_read      ia64_mv.pci_legacy_read
133 #  define platform_pci_legacy_write     ia64_mv.pci_legacy_write
134 #  define platform_inb          ia64_mv.inb
135 #  define platform_inw          ia64_mv.inw
136 #  define platform_inl          ia64_mv.inl
137 #  define platform_outb         ia64_mv.outb
138 #  define platform_outw         ia64_mv.outw
139 #  define platform_outl         ia64_mv.outl
140 #  define platform_mmiowb       ia64_mv.mmiowb
141 #  define platform_readb        ia64_mv.readb
142 #  define platform_readw        ia64_mv.readw
143 #  define platform_readl        ia64_mv.readl
144 #  define platform_readq        ia64_mv.readq
145 #  define platform_readb_relaxed        ia64_mv.readb_relaxed
146 #  define platform_readw_relaxed        ia64_mv.readw_relaxed
147 #  define platform_readl_relaxed        ia64_mv.readl_relaxed
148 #  define platform_readq_relaxed        ia64_mv.readq_relaxed
149 # endif
150
151 /* __attribute__((__aligned__(16))) is required to make size of the
152  * structure multiple of 16 bytes.
153  * This will fillup the holes created because of section 3.3.1 in
154  * Software Conventions guide.
155  */
156 struct ia64_machine_vector {
157         const char *name;
158         ia64_mv_setup_t *setup;
159         ia64_mv_cpu_init_t *cpu_init;
160         ia64_mv_irq_init_t *irq_init;
161         ia64_mv_send_ipi_t *send_ipi;
162         ia64_mv_timer_interrupt_t *timer_interrupt;
163         ia64_mv_global_tlb_purge_t *global_tlb_purge;
164         ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish;
165         ia64_mv_dma_init *dma_init;
166         ia64_mv_dma_alloc_coherent *dma_alloc_coherent;
167         ia64_mv_dma_free_coherent *dma_free_coherent;
168         ia64_mv_dma_map_single *dma_map_single;
169         ia64_mv_dma_unmap_single *dma_unmap_single;
170         ia64_mv_dma_map_sg *dma_map_sg;
171         ia64_mv_dma_unmap_sg *dma_unmap_sg;
172         ia64_mv_dma_sync_single_for_cpu *dma_sync_single_for_cpu;
173         ia64_mv_dma_sync_sg_for_cpu *dma_sync_sg_for_cpu;
174         ia64_mv_dma_sync_single_for_device *dma_sync_single_for_device;
175         ia64_mv_dma_sync_sg_for_device *dma_sync_sg_for_device;
176         ia64_mv_dma_mapping_error *dma_mapping_error;
177         ia64_mv_dma_supported *dma_supported;
178         ia64_mv_local_vector_to_irq *local_vector_to_irq;
179         ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem;
180         ia64_mv_pci_legacy_read_t *pci_legacy_read;
181         ia64_mv_pci_legacy_write_t *pci_legacy_write;
182         ia64_mv_inb_t *inb;
183         ia64_mv_inw_t *inw;
184         ia64_mv_inl_t *inl;
185         ia64_mv_outb_t *outb;
186         ia64_mv_outw_t *outw;
187         ia64_mv_outl_t *outl;
188         ia64_mv_mmiowb_t *mmiowb;
189         ia64_mv_readb_t *readb;
190         ia64_mv_readw_t *readw;
191         ia64_mv_readl_t *readl;
192         ia64_mv_readq_t *readq;
193         ia64_mv_readb_relaxed_t *readb_relaxed;
194         ia64_mv_readw_relaxed_t *readw_relaxed;
195         ia64_mv_readl_relaxed_t *readl_relaxed;
196         ia64_mv_readq_relaxed_t *readq_relaxed;
197 } __attribute__((__aligned__(16))); /* align attrib? see above comment */
198
199 #define MACHVEC_INIT(name)                      \
200 {                                               \
201         #name,                                  \
202         platform_setup,                         \
203         platform_cpu_init,                      \
204         platform_irq_init,                      \
205         platform_send_ipi,                      \
206         platform_timer_interrupt,               \
207         platform_global_tlb_purge,              \
208         platform_tlb_migrate_finish,            \
209         platform_dma_init,                      \
210         platform_dma_alloc_coherent,            \
211         platform_dma_free_coherent,             \
212         platform_dma_map_single,                \
213         platform_dma_unmap_single,              \
214         platform_dma_map_sg,                    \
215         platform_dma_unmap_sg,                  \
216         platform_dma_sync_single_for_cpu,       \
217         platform_dma_sync_sg_for_cpu,           \
218         platform_dma_sync_single_for_device,    \
219         platform_dma_sync_sg_for_device,        \
220         platform_dma_mapping_error,                     \
221         platform_dma_supported,                 \
222         platform_local_vector_to_irq,           \
223         platform_pci_get_legacy_mem,            \
224         platform_pci_legacy_read,               \
225         platform_pci_legacy_write,              \
226         platform_inb,                           \
227         platform_inw,                           \
228         platform_inl,                           \
229         platform_outb,                          \
230         platform_outw,                          \
231         platform_outl,                          \
232         platform_mmiowb,                        \
233         platform_readb,                         \
234         platform_readw,                         \
235         platform_readl,                         \
236         platform_readq,                         \
237         platform_readb_relaxed,                 \
238         platform_readw_relaxed,                 \
239         platform_readl_relaxed,                 \
240         platform_readq_relaxed,                 \
241 }
242
243 extern struct ia64_machine_vector ia64_mv;
244 extern void machvec_init (const char *name);
245
246 # else
247 #  error Unknown configuration.  Update asm-ia64/machvec.h.
248 # endif /* CONFIG_IA64_GENERIC */
249
250 /*
251  * Declare default routines which aren't declared anywhere else:
252  */
253 extern ia64_mv_dma_init                 swiotlb_init;
254 extern ia64_mv_dma_alloc_coherent       swiotlb_alloc_coherent;
255 extern ia64_mv_dma_free_coherent        swiotlb_free_coherent;
256 extern ia64_mv_dma_map_single           swiotlb_map_single;
257 extern ia64_mv_dma_unmap_single         swiotlb_unmap_single;
258 extern ia64_mv_dma_map_sg               swiotlb_map_sg;
259 extern ia64_mv_dma_unmap_sg             swiotlb_unmap_sg;
260 extern ia64_mv_dma_sync_single_for_cpu  swiotlb_sync_single_for_cpu;
261 extern ia64_mv_dma_sync_sg_for_cpu      swiotlb_sync_sg_for_cpu;
262 extern ia64_mv_dma_sync_single_for_device swiotlb_sync_single_for_device;
263 extern ia64_mv_dma_sync_sg_for_device   swiotlb_sync_sg_for_device;
264 extern ia64_mv_dma_mapping_error        swiotlb_dma_mapping_error;
265 extern ia64_mv_dma_supported            swiotlb_dma_supported;
266
267 /*
268  * Define default versions so we can extend machvec for new platforms without having
269  * to update the machvec files for all existing platforms.
270  */
271 #ifndef platform_setup
272 # define platform_setup                 machvec_setup
273 #endif
274 #ifndef platform_cpu_init
275 # define platform_cpu_init              machvec_noop
276 #endif
277 #ifndef platform_irq_init
278 # define platform_irq_init              machvec_noop
279 #endif
280
281 #ifndef platform_send_ipi
282 # define platform_send_ipi              ia64_send_ipi   /* default to architected version */
283 #endif
284 #ifndef platform_timer_interrupt
285 # define platform_timer_interrupt       machvec_timer_interrupt
286 #endif
287 #ifndef platform_global_tlb_purge
288 # define platform_global_tlb_purge      ia64_global_tlb_purge /* default to architected version */
289 #endif
290 #ifndef platform_tlb_migrate_finish
291 # define platform_tlb_migrate_finish    machvec_noop_mm
292 #endif
293 #ifndef platform_dma_init
294 # define platform_dma_init              swiotlb_init
295 #endif
296 #ifndef platform_dma_alloc_coherent
297 # define platform_dma_alloc_coherent    swiotlb_alloc_coherent
298 #endif
299 #ifndef platform_dma_free_coherent
300 # define platform_dma_free_coherent     swiotlb_free_coherent
301 #endif
302 #ifndef platform_dma_map_single
303 # define platform_dma_map_single        swiotlb_map_single
304 #endif
305 #ifndef platform_dma_unmap_single
306 # define platform_dma_unmap_single      swiotlb_unmap_single
307 #endif
308 #ifndef platform_dma_map_sg
309 # define platform_dma_map_sg            swiotlb_map_sg
310 #endif
311 #ifndef platform_dma_unmap_sg
312 # define platform_dma_unmap_sg          swiotlb_unmap_sg
313 #endif
314 #ifndef platform_dma_sync_single_for_cpu
315 # define platform_dma_sync_single_for_cpu       swiotlb_sync_single_for_cpu
316 #endif
317 #ifndef platform_dma_sync_sg_for_cpu
318 # define platform_dma_sync_sg_for_cpu           swiotlb_sync_sg_for_cpu
319 #endif
320 #ifndef platform_dma_sync_single_for_device
321 # define platform_dma_sync_single_for_device    swiotlb_sync_single_for_device
322 #endif
323 #ifndef platform_dma_sync_sg_for_device
324 # define platform_dma_sync_sg_for_device        swiotlb_sync_sg_for_device
325 #endif
326 #ifndef platform_dma_mapping_error
327 # define platform_dma_mapping_error             swiotlb_dma_mapping_error
328 #endif
329 #ifndef platform_dma_supported
330 # define  platform_dma_supported        swiotlb_dma_supported
331 #endif
332 #ifndef platform_local_vector_to_irq
333 # define platform_local_vector_to_irq   __ia64_local_vector_to_irq
334 #endif
335 #ifndef platform_pci_get_legacy_mem
336 # define platform_pci_get_legacy_mem    ia64_pci_get_legacy_mem
337 #endif
338 #ifndef platform_pci_legacy_read
339 # define platform_pci_legacy_read       ia64_pci_legacy_read
340 #endif
341 #ifndef platform_pci_legacy_write
342 # define platform_pci_legacy_write      ia64_pci_legacy_write
343 #endif
344 #ifndef platform_inb
345 # define platform_inb           __ia64_inb
346 #endif
347 #ifndef platform_inw
348 # define platform_inw           __ia64_inw
349 #endif
350 #ifndef platform_inl
351 # define platform_inl           __ia64_inl
352 #endif
353 #ifndef platform_outb
354 # define platform_outb          __ia64_outb
355 #endif
356 #ifndef platform_outw
357 # define platform_outw          __ia64_outw
358 #endif
359 #ifndef platform_outl
360 # define platform_outl          __ia64_outl
361 #endif
362 #ifndef platform_mmiowb
363 # define platform_mmiowb        __ia64_mmiowb
364 #endif
365 #ifndef platform_readb
366 # define platform_readb         __ia64_readb
367 #endif
368 #ifndef platform_readw
369 # define platform_readw         __ia64_readw
370 #endif
371 #ifndef platform_readl
372 # define platform_readl         __ia64_readl
373 #endif
374 #ifndef platform_readq
375 # define platform_readq         __ia64_readq
376 #endif
377 #ifndef platform_readb_relaxed
378 # define platform_readb_relaxed __ia64_readb_relaxed
379 #endif
380 #ifndef platform_readw_relaxed
381 # define platform_readw_relaxed __ia64_readw_relaxed
382 #endif
383 #ifndef platform_readl_relaxed
384 # define platform_readl_relaxed __ia64_readl_relaxed
385 #endif
386 #ifndef platform_readq_relaxed
387 # define platform_readq_relaxed __ia64_readq_relaxed
388 #endif
389
390 #endif /* _ASM_IA64_MACHVEC_H */