1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Machine vector for IA-64.
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>
11 #ifndef _ASM_IA64_MACHVEC_H
12 #define _ASM_IA64_MACHVEC_H
14 #include <linux/types.h>
16 /* forward declarations: */
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 u8 ia64_mv_irq_to_vector (int);
34 typedef unsigned int ia64_mv_local_vector_to_irq (u8);
35 typedef char *ia64_mv_pci_get_legacy_mem_t (struct pci_bus *);
36 typedef int ia64_mv_pci_legacy_read_t (struct pci_bus *, u16 port, u32 *val,
38 typedef int ia64_mv_pci_legacy_write_t (struct pci_bus *, u16 port, u32 val,
40 typedef void ia64_mv_migrate_t(struct task_struct * task);
41 typedef void ia64_mv_pci_fixup_bus_t (struct pci_bus *);
42 typedef void ia64_mv_kernel_launch_event_t(void);
44 /* DMA-mapping interface: */
45 typedef void ia64_mv_dma_init (void);
46 typedef const struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
49 * WARNING: The legacy I/O space is _architected_. Platforms are
50 * expected to follow this architected model (see Section 10.7 in the
51 * IA-64 Architecture Software Developer's Manual). Unfortunately,
52 * some broken machines do not follow that model, which is why we have
53 * to make the inX/outX operations part of the machine vector.
54 * Platform designers should follow the architected model whenever
57 typedef unsigned int ia64_mv_inb_t (unsigned long);
58 typedef unsigned int ia64_mv_inw_t (unsigned long);
59 typedef unsigned int ia64_mv_inl_t (unsigned long);
60 typedef void ia64_mv_outb_t (unsigned char, unsigned long);
61 typedef void ia64_mv_outw_t (unsigned short, unsigned long);
62 typedef void ia64_mv_outl_t (unsigned int, unsigned long);
63 typedef void ia64_mv_mmiowb_t (void);
64 typedef unsigned char ia64_mv_readb_t (const volatile void __iomem *);
65 typedef unsigned short ia64_mv_readw_t (const volatile void __iomem *);
66 typedef unsigned int ia64_mv_readl_t (const volatile void __iomem *);
67 typedef unsigned long ia64_mv_readq_t (const volatile void __iomem *);
68 typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
69 typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
70 typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
71 typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
73 typedef int ia64_mv_setup_msi_irq_t (struct pci_dev *pdev, struct msi_desc *);
74 typedef void ia64_mv_teardown_msi_irq_t (unsigned int irq);
82 machvec_noop_task (struct task_struct *task)
87 machvec_noop_bus (struct pci_bus *bus)
91 extern void machvec_setup (char **);
92 extern void machvec_timer_interrupt (int, void *);
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_DIG_VTD)
99 # include <asm/machvec_dig_vtd.h>
100 # elif defined (CONFIG_IA64_HP_ZX1)
101 # include <asm/machvec_hpzx1.h>
102 # elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
103 # include <asm/machvec_hpzx1_swiotlb.h>
104 # elif defined (CONFIG_IA64_SGI_SN2)
105 # include <asm/machvec_sn2.h>
106 # elif defined (CONFIG_IA64_SGI_UV)
107 # include <asm/machvec_uv.h>
108 # elif defined (CONFIG_IA64_GENERIC)
110 # ifdef MACHVEC_PLATFORM_HEADER
111 # include MACHVEC_PLATFORM_HEADER
113 # define ia64_platform_name ia64_mv.name
114 # define platform_setup ia64_mv.setup
115 # define platform_cpu_init ia64_mv.cpu_init
116 # define platform_irq_init ia64_mv.irq_init
117 # define platform_send_ipi ia64_mv.send_ipi
118 # define platform_timer_interrupt ia64_mv.timer_interrupt
119 # define platform_global_tlb_purge ia64_mv.global_tlb_purge
120 # define platform_dma_init ia64_mv.dma_init
121 # define platform_dma_get_ops ia64_mv.dma_get_ops
122 # define platform_irq_to_vector ia64_mv.irq_to_vector
123 # define platform_local_vector_to_irq ia64_mv.local_vector_to_irq
124 # define platform_pci_get_legacy_mem ia64_mv.pci_get_legacy_mem
125 # define platform_pci_legacy_read ia64_mv.pci_legacy_read
126 # define platform_pci_legacy_write ia64_mv.pci_legacy_write
127 # define platform_inb ia64_mv.inb
128 # define platform_inw ia64_mv.inw
129 # define platform_inl ia64_mv.inl
130 # define platform_outb ia64_mv.outb
131 # define platform_outw ia64_mv.outw
132 # define platform_outl ia64_mv.outl
133 # define platform_mmiowb ia64_mv.mmiowb
134 # define platform_readb ia64_mv.readb
135 # define platform_readw ia64_mv.readw
136 # define platform_readl ia64_mv.readl
137 # define platform_readq ia64_mv.readq
138 # define platform_readb_relaxed ia64_mv.readb_relaxed
139 # define platform_readw_relaxed ia64_mv.readw_relaxed
140 # define platform_readl_relaxed ia64_mv.readl_relaxed
141 # define platform_readq_relaxed ia64_mv.readq_relaxed
142 # define platform_migrate ia64_mv.migrate
143 # define platform_setup_msi_irq ia64_mv.setup_msi_irq
144 # define platform_teardown_msi_irq ia64_mv.teardown_msi_irq
145 # define platform_pci_fixup_bus ia64_mv.pci_fixup_bus
146 # define platform_kernel_launch_event ia64_mv.kernel_launch_event
149 /* __attribute__((__aligned__(16))) is required to make size of the
150 * structure multiple of 16 bytes.
151 * This will fillup the holes created because of section 3.3.1 in
152 * Software Conventions guide.
154 struct ia64_machine_vector {
156 ia64_mv_setup_t *setup;
157 ia64_mv_cpu_init_t *cpu_init;
158 ia64_mv_irq_init_t *irq_init;
159 ia64_mv_send_ipi_t *send_ipi;
160 ia64_mv_timer_interrupt_t *timer_interrupt;
161 ia64_mv_global_tlb_purge_t *global_tlb_purge;
162 ia64_mv_dma_init *dma_init;
163 ia64_mv_dma_get_ops *dma_get_ops;
164 ia64_mv_irq_to_vector *irq_to_vector;
165 ia64_mv_local_vector_to_irq *local_vector_to_irq;
166 ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem;
167 ia64_mv_pci_legacy_read_t *pci_legacy_read;
168 ia64_mv_pci_legacy_write_t *pci_legacy_write;
172 ia64_mv_outb_t *outb;
173 ia64_mv_outw_t *outw;
174 ia64_mv_outl_t *outl;
175 ia64_mv_mmiowb_t *mmiowb;
176 ia64_mv_readb_t *readb;
177 ia64_mv_readw_t *readw;
178 ia64_mv_readl_t *readl;
179 ia64_mv_readq_t *readq;
180 ia64_mv_readb_relaxed_t *readb_relaxed;
181 ia64_mv_readw_relaxed_t *readw_relaxed;
182 ia64_mv_readl_relaxed_t *readl_relaxed;
183 ia64_mv_readq_relaxed_t *readq_relaxed;
184 ia64_mv_migrate_t *migrate;
185 ia64_mv_setup_msi_irq_t *setup_msi_irq;
186 ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
187 ia64_mv_pci_fixup_bus_t *pci_fixup_bus;
188 ia64_mv_kernel_launch_event_t *kernel_launch_event;
189 } __attribute__((__aligned__(16))); /* align attrib? see above comment */
191 #define MACHVEC_INIT(name) \
198 platform_timer_interrupt, \
199 platform_global_tlb_purge, \
201 platform_dma_get_ops, \
202 platform_irq_to_vector, \
203 platform_local_vector_to_irq, \
204 platform_pci_get_legacy_mem, \
205 platform_pci_legacy_read, \
206 platform_pci_legacy_write, \
218 platform_readb_relaxed, \
219 platform_readw_relaxed, \
220 platform_readl_relaxed, \
221 platform_readq_relaxed, \
223 platform_setup_msi_irq, \
224 platform_teardown_msi_irq, \
225 platform_pci_fixup_bus, \
226 platform_kernel_launch_event \
229 extern struct ia64_machine_vector ia64_mv;
230 extern void machvec_init (const char *name);
231 extern void machvec_init_from_cmdline(const char *cmdline);
234 # error Unknown configuration. Update arch/ia64/include/asm/machvec.h.
235 # endif /* CONFIG_IA64_GENERIC */
237 extern void swiotlb_dma_init(void);
238 extern const struct dma_map_ops *dma_get_ops(struct device *);
241 * Define default versions so we can extend machvec for new platforms without having
242 * to update the machvec files for all existing platforms.
244 #ifndef platform_setup
245 # define platform_setup machvec_setup
247 #ifndef platform_cpu_init
248 # define platform_cpu_init machvec_noop
250 #ifndef platform_irq_init
251 # define platform_irq_init machvec_noop
254 #ifndef platform_send_ipi
255 # define platform_send_ipi ia64_send_ipi /* default to architected version */
257 #ifndef platform_timer_interrupt
258 # define platform_timer_interrupt machvec_timer_interrupt
260 #ifndef platform_global_tlb_purge
261 # define platform_global_tlb_purge ia64_global_tlb_purge /* default to architected version */
263 #ifndef platform_kernel_launch_event
264 # define platform_kernel_launch_event machvec_noop
266 #ifndef platform_dma_init
267 # define platform_dma_init swiotlb_dma_init
269 #ifndef platform_dma_get_ops
270 # define platform_dma_get_ops dma_get_ops
272 #ifndef platform_irq_to_vector
273 # define platform_irq_to_vector __ia64_irq_to_vector
275 #ifndef platform_local_vector_to_irq
276 # define platform_local_vector_to_irq __ia64_local_vector_to_irq
278 #ifndef platform_pci_get_legacy_mem
279 # define platform_pci_get_legacy_mem ia64_pci_get_legacy_mem
281 #ifndef platform_pci_legacy_read
282 # define platform_pci_legacy_read ia64_pci_legacy_read
283 extern int ia64_pci_legacy_read(struct pci_bus *bus, u16 port, u32 *val, u8 size);
285 #ifndef platform_pci_legacy_write
286 # define platform_pci_legacy_write ia64_pci_legacy_write
287 extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size);
290 # define platform_inb __ia64_inb
293 # define platform_inw __ia64_inw
296 # define platform_inl __ia64_inl
298 #ifndef platform_outb
299 # define platform_outb __ia64_outb
301 #ifndef platform_outw
302 # define platform_outw __ia64_outw
304 #ifndef platform_outl
305 # define platform_outl __ia64_outl
307 #ifndef platform_mmiowb
308 # define platform_mmiowb __ia64_mmiowb
310 #ifndef platform_readb
311 # define platform_readb __ia64_readb
313 #ifndef platform_readw
314 # define platform_readw __ia64_readw
316 #ifndef platform_readl
317 # define platform_readl __ia64_readl
319 #ifndef platform_readq
320 # define platform_readq __ia64_readq
322 #ifndef platform_readb_relaxed
323 # define platform_readb_relaxed __ia64_readb_relaxed
325 #ifndef platform_readw_relaxed
326 # define platform_readw_relaxed __ia64_readw_relaxed
328 #ifndef platform_readl_relaxed
329 # define platform_readl_relaxed __ia64_readl_relaxed
331 #ifndef platform_readq_relaxed
332 # define platform_readq_relaxed __ia64_readq_relaxed
334 #ifndef platform_migrate
335 # define platform_migrate machvec_noop_task
337 #ifndef platform_setup_msi_irq
338 # define platform_setup_msi_irq ((ia64_mv_setup_msi_irq_t*)NULL)
340 #ifndef platform_teardown_msi_irq
341 # define platform_teardown_msi_irq ((ia64_mv_teardown_msi_irq_t*)NULL)
343 #ifndef platform_pci_fixup_bus
344 # define platform_pci_fixup_bus machvec_noop_bus
347 #endif /* _ASM_IA64_MACHVEC_H */