Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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_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 */
164struct 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
243extern struct ia64_machine_vector ia64_mv;
244extern void machvec_init (const char *name);
245extern 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
251extern void swiotlb_dma_init(void);
252extern 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
303extern 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
307extern 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 */