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Linux/arch/ia64/include/asm/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 <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
 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_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 

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