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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Machine vector for IA-64.
4 *
5 * Copyright (C) 1999 Silicon Graphics, Inc.
6 * Copyright (C) Srinivasa Thirumalachar <sprasad@engr.sgi.com>
7 * Copyright (C) Vijay Chander <vijay@engr.sgi.com>
8 * Copyright (C) 1999-2001, 2003-2004 Hewlett-Packard Co.
9 * David Mosberger-Tang <davidm@hpl.hp.com>
10 */
11#ifndef _ASM_IA64_MACHVEC_H
12#define _ASM_IA64_MACHVEC_H
13
14#include <linux/types.h>
15
16/* forward declarations: */
17struct device;
18struct pt_regs;
19struct scatterlist;
20struct page;
21struct mm_struct;
22struct pci_bus;
23struct task_struct;
24struct pci_dev;
25struct msi_desc;
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 const struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
48
49/*
50 * WARNING: The legacy I/O space is _architected_. Platforms are
51 * expected to follow this architected model (see Section 10.7 in the
52 * IA-64 Architecture Software Developer's Manual). Unfortunately,
53 * some broken machines do not follow that model, which is why we have
54 * to make the inX/outX operations part of the machine vector.
55 * Platform designers should follow the architected model whenever
56 * possible.
57 */
58typedef unsigned int ia64_mv_inb_t (unsigned long);
59typedef unsigned int ia64_mv_inw_t (unsigned long);
60typedef unsigned int ia64_mv_inl_t (unsigned long);
61typedef void ia64_mv_outb_t (unsigned char, unsigned long);
62typedef void ia64_mv_outw_t (unsigned short, unsigned long);
63typedef void ia64_mv_outl_t (unsigned int, unsigned long);
64typedef void ia64_mv_mmiowb_t (void);
65typedef unsigned char ia64_mv_readb_t (const volatile void __iomem *);
66typedef unsigned short ia64_mv_readw_t (const volatile void __iomem *);
67typedef unsigned int ia64_mv_readl_t (const volatile void __iomem *);
68typedef unsigned long ia64_mv_readq_t (const volatile void __iomem *);
69typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
70typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
71typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
72typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
73
74typedef int ia64_mv_setup_msi_irq_t (struct pci_dev *pdev, struct msi_desc *);
75typedef void ia64_mv_teardown_msi_irq_t (unsigned int irq);
76
77static inline void
78machvec_noop (void)
79{
80}
81
82static inline void
83machvec_noop_mm (struct mm_struct *mm)
84{
85}
86
87static inline void
88machvec_noop_task (struct task_struct *task)
89{
90}
91
92static inline void
93machvec_noop_bus (struct pci_bus *bus)
94{
95}
96
97extern void machvec_setup (char **);
98extern void machvec_timer_interrupt (int, void *);
99extern void machvec_tlb_migrate_finish (struct mm_struct *);
100
101# if defined (CONFIG_IA64_HP_SIM)
102# include <asm/machvec_hpsim.h>
103# elif defined (CONFIG_IA64_DIG)
104# include <asm/machvec_dig.h>
105# elif defined(CONFIG_IA64_DIG_VTD)
106# include <asm/machvec_dig_vtd.h>
107# elif defined (CONFIG_IA64_HP_ZX1)
108# include <asm/machvec_hpzx1.h>
109# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
110# include <asm/machvec_hpzx1_swiotlb.h>
111# elif defined (CONFIG_IA64_SGI_SN2)
112# include <asm/machvec_sn2.h>
113# elif defined (CONFIG_IA64_SGI_UV)
114# include <asm/machvec_uv.h>
115# elif defined (CONFIG_IA64_GENERIC)
116
117# ifdef MACHVEC_PLATFORM_HEADER
118# include MACHVEC_PLATFORM_HEADER
119# else
120# define ia64_platform_name ia64_mv.name
121# define platform_setup ia64_mv.setup
122# define platform_cpu_init ia64_mv.cpu_init
123# define platform_irq_init ia64_mv.irq_init
124# define platform_send_ipi ia64_mv.send_ipi
125# define platform_timer_interrupt ia64_mv.timer_interrupt
126# define platform_global_tlb_purge ia64_mv.global_tlb_purge
127# define platform_tlb_migrate_finish ia64_mv.tlb_migrate_finish
128# define platform_dma_init ia64_mv.dma_init
129# define platform_dma_get_ops ia64_mv.dma_get_ops
130# define platform_irq_to_vector ia64_mv.irq_to_vector
131# define platform_local_vector_to_irq ia64_mv.local_vector_to_irq
132# define platform_pci_get_legacy_mem ia64_mv.pci_get_legacy_mem
133# define platform_pci_legacy_read ia64_mv.pci_legacy_read
134# define platform_pci_legacy_write ia64_mv.pci_legacy_write
135# define platform_inb ia64_mv.inb
136# define platform_inw ia64_mv.inw
137# define platform_inl ia64_mv.inl
138# define platform_outb ia64_mv.outb
139# define platform_outw ia64_mv.outw
140# define platform_outl ia64_mv.outl
141# define platform_mmiowb ia64_mv.mmiowb
142# define platform_readb ia64_mv.readb
143# define platform_readw ia64_mv.readw
144# define platform_readl ia64_mv.readl
145# define platform_readq ia64_mv.readq
146# define platform_readb_relaxed ia64_mv.readb_relaxed
147# define platform_readw_relaxed ia64_mv.readw_relaxed
148# define platform_readl_relaxed ia64_mv.readl_relaxed
149# define platform_readq_relaxed ia64_mv.readq_relaxed
150# define platform_migrate ia64_mv.migrate
151# define platform_setup_msi_irq ia64_mv.setup_msi_irq
152# define platform_teardown_msi_irq ia64_mv.teardown_msi_irq
153# define platform_pci_fixup_bus ia64_mv.pci_fixup_bus
154# define platform_kernel_launch_event ia64_mv.kernel_launch_event
155# endif
156
157/* __attribute__((__aligned__(16))) is required to make size of the
158 * structure multiple of 16 bytes.
159 * This will fillup the holes created because of section 3.3.1 in
160 * Software Conventions guide.
161 */
162struct ia64_machine_vector {
163 const char *name;
164 ia64_mv_setup_t *setup;
165 ia64_mv_cpu_init_t *cpu_init;
166 ia64_mv_irq_init_t *irq_init;
167 ia64_mv_send_ipi_t *send_ipi;
168 ia64_mv_timer_interrupt_t *timer_interrupt;
169 ia64_mv_global_tlb_purge_t *global_tlb_purge;
170 ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish;
171 ia64_mv_dma_init *dma_init;
172 ia64_mv_dma_get_ops *dma_get_ops;
173 ia64_mv_irq_to_vector *irq_to_vector;
174 ia64_mv_local_vector_to_irq *local_vector_to_irq;
175 ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem;
176 ia64_mv_pci_legacy_read_t *pci_legacy_read;
177 ia64_mv_pci_legacy_write_t *pci_legacy_write;
178 ia64_mv_inb_t *inb;
179 ia64_mv_inw_t *inw;
180 ia64_mv_inl_t *inl;
181 ia64_mv_outb_t *outb;
182 ia64_mv_outw_t *outw;
183 ia64_mv_outl_t *outl;
184 ia64_mv_mmiowb_t *mmiowb;
185 ia64_mv_readb_t *readb;
186 ia64_mv_readw_t *readw;
187 ia64_mv_readl_t *readl;
188 ia64_mv_readq_t *readq;
189 ia64_mv_readb_relaxed_t *readb_relaxed;
190 ia64_mv_readw_relaxed_t *readw_relaxed;
191 ia64_mv_readl_relaxed_t *readl_relaxed;
192 ia64_mv_readq_relaxed_t *readq_relaxed;
193 ia64_mv_migrate_t *migrate;
194 ia64_mv_setup_msi_irq_t *setup_msi_irq;
195 ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
196 ia64_mv_pci_fixup_bus_t *pci_fixup_bus;
197 ia64_mv_kernel_launch_event_t *kernel_launch_event;
198} __attribute__((__aligned__(16))); /* align attrib? see above comment */
199
200#define MACHVEC_INIT(name) \
201{ \
202 #name, \
203 platform_setup, \
204 platform_cpu_init, \
205 platform_irq_init, \
206 platform_send_ipi, \
207 platform_timer_interrupt, \
208 platform_global_tlb_purge, \
209 platform_tlb_migrate_finish, \
210 platform_dma_init, \
211 platform_dma_get_ops, \
212 platform_irq_to_vector, \
213 platform_local_vector_to_irq, \
214 platform_pci_get_legacy_mem, \
215 platform_pci_legacy_read, \
216 platform_pci_legacy_write, \
217 platform_inb, \
218 platform_inw, \
219 platform_inl, \
220 platform_outb, \
221 platform_outw, \
222 platform_outl, \
223 platform_mmiowb, \
224 platform_readb, \
225 platform_readw, \
226 platform_readl, \
227 platform_readq, \
228 platform_readb_relaxed, \
229 platform_readw_relaxed, \
230 platform_readl_relaxed, \
231 platform_readq_relaxed, \
232 platform_migrate, \
233 platform_setup_msi_irq, \
234 platform_teardown_msi_irq, \
235 platform_pci_fixup_bus, \
236 platform_kernel_launch_event \
237}
238
239extern struct ia64_machine_vector ia64_mv;
240extern void machvec_init (const char *name);
241extern void machvec_init_from_cmdline(const char *cmdline);
242
243# else
244# error Unknown configuration. Update arch/ia64/include/asm/machvec.h.
245# endif /* CONFIG_IA64_GENERIC */
246
247extern void swiotlb_dma_init(void);
248extern const struct dma_map_ops *dma_get_ops(struct device *);
249
250/*
251 * Define default versions so we can extend machvec for new platforms without having
252 * to update the machvec files for all existing platforms.
253 */
254#ifndef platform_setup
255# define platform_setup machvec_setup
256#endif
257#ifndef platform_cpu_init
258# define platform_cpu_init machvec_noop
259#endif
260#ifndef platform_irq_init
261# define platform_irq_init machvec_noop
262#endif
263
264#ifndef platform_send_ipi
265# define platform_send_ipi ia64_send_ipi /* default to architected version */
266#endif
267#ifndef platform_timer_interrupt
268# define platform_timer_interrupt machvec_timer_interrupt
269#endif
270#ifndef platform_global_tlb_purge
271# define platform_global_tlb_purge ia64_global_tlb_purge /* default to architected version */
272#endif
273#ifndef platform_tlb_migrate_finish
274# define platform_tlb_migrate_finish machvec_noop_mm
275#endif
276#ifndef platform_kernel_launch_event
277# define platform_kernel_launch_event machvec_noop
278#endif
279#ifndef platform_dma_init
280# define platform_dma_init swiotlb_dma_init
281#endif
282#ifndef platform_dma_get_ops
283# define platform_dma_get_ops dma_get_ops
284#endif
285#ifndef platform_irq_to_vector
286# define platform_irq_to_vector __ia64_irq_to_vector
287#endif
288#ifndef platform_local_vector_to_irq
289# define platform_local_vector_to_irq __ia64_local_vector_to_irq
290#endif
291#ifndef platform_pci_get_legacy_mem
292# define platform_pci_get_legacy_mem ia64_pci_get_legacy_mem
293#endif
294#ifndef platform_pci_legacy_read
295# define platform_pci_legacy_read ia64_pci_legacy_read
296extern int ia64_pci_legacy_read(struct pci_bus *bus, u16 port, u32 *val, u8 size);
297#endif
298#ifndef platform_pci_legacy_write
299# define platform_pci_legacy_write ia64_pci_legacy_write
300extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size);
301#endif
302#ifndef platform_inb
303# define platform_inb __ia64_inb
304#endif
305#ifndef platform_inw
306# define platform_inw __ia64_inw
307#endif
308#ifndef platform_inl
309# define platform_inl __ia64_inl
310#endif
311#ifndef platform_outb
312# define platform_outb __ia64_outb
313#endif
314#ifndef platform_outw
315# define platform_outw __ia64_outw
316#endif
317#ifndef platform_outl
318# define platform_outl __ia64_outl
319#endif
320#ifndef platform_mmiowb
321# define platform_mmiowb __ia64_mmiowb
322#endif
323#ifndef platform_readb
324# define platform_readb __ia64_readb
325#endif
326#ifndef platform_readw
327# define platform_readw __ia64_readw
328#endif
329#ifndef platform_readl
330# define platform_readl __ia64_readl
331#endif
332#ifndef platform_readq
333# define platform_readq __ia64_readq
334#endif
335#ifndef platform_readb_relaxed
336# define platform_readb_relaxed __ia64_readb_relaxed
337#endif
338#ifndef platform_readw_relaxed
339# define platform_readw_relaxed __ia64_readw_relaxed
340#endif
341#ifndef platform_readl_relaxed
342# define platform_readl_relaxed __ia64_readl_relaxed
343#endif
344#ifndef platform_readq_relaxed
345# define platform_readq_relaxed __ia64_readq_relaxed
346#endif
347#ifndef platform_migrate
348# define platform_migrate machvec_noop_task
349#endif
350#ifndef platform_setup_msi_irq
351# define platform_setup_msi_irq ((ia64_mv_setup_msi_irq_t*)NULL)
352#endif
353#ifndef platform_teardown_msi_irq
354# define platform_teardown_msi_irq ((ia64_mv_teardown_msi_irq_t*)NULL)
355#endif
356#ifndef platform_pci_fixup_bus
357# define platform_pci_fixup_bus machvec_noop_bus
358#endif
359
360#endif /* _ASM_IA64_MACHVEC_H */