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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: */
16struct device;
17struct pt_regs;
18struct scatterlist;
19struct page;
20struct mm_struct;
21struct pci_bus;
22struct task_struct;
23struct pci_dev;
24struct msi_desc;
25struct dma_attrs;
26
27typedef void ia64_mv_setup_t (char **);
28typedef void ia64_mv_cpu_init_t (void);
29typedef void ia64_mv_irq_init_t (void);
30typedef void ia64_mv_send_ipi_t (int, int, int, int);
31typedef void ia64_mv_timer_interrupt_t (int, void *);
32typedef void ia64_mv_global_tlb_purge_t (struct mm_struct *, unsigned long, unsigned long, unsigned long);
33typedef void ia64_mv_tlb_migrate_finish_t (struct mm_struct *);
34typedef u8 ia64_mv_irq_to_vector (int);
35typedef unsigned int ia64_mv_local_vector_to_irq (u8);
36typedef char *ia64_mv_pci_get_legacy_mem_t (struct pci_bus *);
37typedef int ia64_mv_pci_legacy_read_t (struct pci_bus *, u16 port, u32 *val,
38 u8 size);
39typedef int ia64_mv_pci_legacy_write_t (struct pci_bus *, u16 port, u32 val,
40 u8 size);
41typedef void ia64_mv_migrate_t(struct task_struct * task);
42typedef void ia64_mv_pci_fixup_bus_t (struct pci_bus *);
43typedef void ia64_mv_kernel_launch_event_t(void);
44
45/* DMA-mapping interface: */
46typedef void ia64_mv_dma_init (void);
47typedef u64 ia64_mv_dma_get_required_mask (struct device *);
48typedef 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 */
59typedef unsigned int ia64_mv_inb_t (unsigned long);
60typedef unsigned int ia64_mv_inw_t (unsigned long);
61typedef unsigned int ia64_mv_inl_t (unsigned long);
62typedef void ia64_mv_outb_t (unsigned char, unsigned long);
63typedef void ia64_mv_outw_t (unsigned short, unsigned long);
64typedef void ia64_mv_outl_t (unsigned int, unsigned long);
65typedef void ia64_mv_mmiowb_t (void);
66typedef unsigned char ia64_mv_readb_t (const volatile void __iomem *);
67typedef unsigned short ia64_mv_readw_t (const volatile void __iomem *);
68typedef unsigned int ia64_mv_readl_t (const volatile void __iomem *);
69typedef unsigned long ia64_mv_readq_t (const volatile void __iomem *);
70typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
71typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
72typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
73typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
74
75typedef int ia64_mv_setup_msi_irq_t (struct pci_dev *pdev, struct msi_desc *);
76typedef void ia64_mv_teardown_msi_irq_t (unsigned int irq);
77
78static inline void
79machvec_noop (void)
80{
81}
82
83static inline void
84machvec_noop_mm (struct mm_struct *mm)
85{
86}
87
88static inline void
89machvec_noop_task (struct task_struct *task)
90{
91}
92
93static inline void
94machvec_noop_bus (struct pci_bus *bus)
95{
96}
97
98extern void machvec_setup (char **);
99extern void machvec_timer_interrupt (int, void *);
100extern 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 */
166struct 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
245extern struct ia64_machine_vector ia64_mv;
246extern void machvec_init (const char *name);
247extern 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
253extern void swiotlb_dma_init(void);
254extern 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
305extern 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
309extern 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 */