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authorPaul Mackerras <paulus@samba.org>2005-10-19 09:11:21 -0400
committerPaul Mackerras <paulus@samba.org>2005-10-19 09:11:21 -0400
commit143a1dec7e04e0a9712ff93e779aabfb21dfd97c (patch)
tree3a60a4e630d792fb3cdc6e962ce0ecfd94bb2672 /include/asm-powerpc/machdep.h
parent7ed476d17f04473f70d796cb6c172bdcfcc9b8e5 (diff)
powerpc: Merge machdep.h
A few things change for consistency between ppc32 and ppc64: idle functions return void; *_get_boot_time functions return unsigned long (i.e. time_t) rather than filling in a struct rtc_time (since that's useful to the callers and easier for pmac to generate); *_get_rtc_time and *_set_rtc_time functions take a struct rtc_time; irq_canonicalize is gone; nvram_sync returns void. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/machdep.h')
-rw-r--r--include/asm-powerpc/machdep.h289
1 files changed, 289 insertions, 0 deletions
diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
new file mode 100644
index 000000000000..f060553b997a
--- /dev/null
+++ b/include/asm-powerpc/machdep.h
@@ -0,0 +1,289 @@
1#ifndef _PPC64_MACHDEP_H
2#define _PPC64_MACHDEP_H
3#ifdef __KERNEL__
4
5/*
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12#include <linux/config.h>
13#include <linux/seq_file.h>
14#include <linux/init.h>
15#include <linux/dma-mapping.h>
16
17#include <asm/setup.h>
18
19/* We export this macro for external modules like Alsa to know if
20 * ppc_md.feature_call is implemented or not
21 */
22#define CONFIG_PPC_HAS_FEATURE_CALLS
23
24struct pt_regs;
25struct pci_bus;
26struct device_node;
27struct iommu_table;
28struct rtc_time;
29struct file;
30
31#ifdef CONFIG_SMP
32struct smp_ops_t {
33 void (*message_pass)(int target, int msg);
34 int (*probe)(void);
35 void (*kick_cpu)(int nr);
36 void (*setup_cpu)(int nr);
37 void (*take_timebase)(void);
38 void (*give_timebase)(void);
39 int (*cpu_enable)(unsigned int nr);
40 int (*cpu_disable)(void);
41 void (*cpu_die)(unsigned int nr);
42 int (*cpu_bootable)(unsigned int nr);
43};
44#endif
45
46struct machdep_calls {
47#ifdef CONFIG_PPC64
48 void (*hpte_invalidate)(unsigned long slot,
49 unsigned long va,
50 int large,
51 int local);
52 long (*hpte_updatepp)(unsigned long slot,
53 unsigned long newpp,
54 unsigned long va,
55 int large,
56 int local);
57 void (*hpte_updateboltedpp)(unsigned long newpp,
58 unsigned long ea);
59 long (*hpte_insert)(unsigned long hpte_group,
60 unsigned long va,
61 unsigned long prpn,
62 unsigned long vflags,
63 unsigned long rflags);
64 long (*hpte_remove)(unsigned long hpte_group);
65 void (*flush_hash_range)(unsigned long number, int local);
66
67 /* special for kexec, to be called in real mode, linar mapping is
68 * destroyed as well */
69 void (*hpte_clear_all)(void);
70
71 void (*tce_build)(struct iommu_table * tbl,
72 long index,
73 long npages,
74 unsigned long uaddr,
75 enum dma_data_direction direction);
76 void (*tce_free)(struct iommu_table *tbl,
77 long index,
78 long npages);
79 void (*tce_flush)(struct iommu_table *tbl);
80 void (*iommu_dev_setup)(struct pci_dev *dev);
81 void (*iommu_bus_setup)(struct pci_bus *bus);
82 void (*irq_bus_setup)(struct pci_bus *bus);
83#endif
84
85 int (*probe)(int platform);
86 void (*setup_arch)(void);
87 void (*init_early)(void);
88 /* Optional, may be NULL. */
89 void (*get_cpuinfo)(struct seq_file *m);
90
91 void (*init_IRQ)(void);
92 int (*get_irq)(struct pt_regs *);
93 void (*cpu_irq_down)(int secondary);
94
95 /* PCI stuff */
96 /* Called after scanning the bus, before allocating resources */
97 void (*pcibios_fixup)(void);
98 int (*pci_probe_mode)(struct pci_bus *);
99
100 void (*restart)(char *cmd);
101 void (*power_off)(void);
102 void (*halt)(void);
103 void (*panic)(char *str);
104 void (*cpu_die)(void);
105
106 long (*time_init)(void); /* Optional, may be NULL */
107
108 int (*set_rtc_time)(struct rtc_time *);
109 void (*get_rtc_time)(struct rtc_time *);
110 unsigned long (*get_boot_time)(void);
111 unsigned char (*rtc_read_val)(int addr);
112 void (*rtc_write_val)(int addr, unsigned char val);
113
114 void (*calibrate_decr)(void);
115
116 void (*progress)(char *, unsigned short);
117
118 /* Interface for platform error logging */
119 void (*log_error)(char *buf, unsigned int err_type, int fatal);
120
121 ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
122 ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
123 ssize_t (*nvram_size)(void);
124 void (*nvram_sync)(void);
125
126 /* Exception handlers */
127 void (*system_reset_exception)(struct pt_regs *regs);
128 int (*machine_check_exception)(struct pt_regs *regs);
129
130 /* Motherboard/chipset features. This is a kind of general purpose
131 * hook used to control some machine specific features (like reset
132 * lines, chip power control, etc...).
133 */
134 long (*feature_call)(unsigned int feature, ...);
135
136 /* Check availability of legacy devices like i8042 */
137 int (*check_legacy_ioport)(unsigned int baseport);
138
139 /* Get legacy PCI/IDE interrupt mapping */
140 int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
141
142 /* Get access protection for /dev/mem */
143 pgprot_t (*phys_mem_access_prot)(struct file *file,
144 unsigned long offset,
145 unsigned long size,
146 pgprot_t vma_prot);
147
148 /* Idle loop for this platform, leave empty for default idle loop */
149 void (*idle_loop)(void);
150
151 /* Function to enable performance monitor counters for this
152 platform, called once per cpu. */
153 void (*enable_pmcs)(void);
154
155#ifdef CONFIG_PPC32 /* XXX for now */
156 /* Optional, may be NULL. */
157 int (*show_cpuinfo)(struct seq_file *m);
158 int (*show_percpuinfo)(struct seq_file *m, int i);
159
160 /* A general init function, called by ppc_init in init/main.c.
161 May be NULL. */
162 void (*init)(void);
163
164 void (*idle)(void);
165 void (*power_save)(void);
166
167 void (*heartbeat)(void);
168 unsigned long heartbeat_reset;
169 unsigned long heartbeat_count;
170
171 unsigned long (*find_end_of_memory)(void);
172 void (*setup_io_mappings)(void);
173
174 void (*early_serial_map)(void);
175 void (*kgdb_map_scc)(void);
176
177 unsigned char (*nvram_read_val)(int addr);
178 void (*nvram_write_val)(int addr, unsigned char val);
179
180 /*
181 * optional PCI "hooks"
182 */
183
184 /* Called after PPC generic resource fixup to perform
185 machine specific fixups */
186 void (*pcibios_fixup_resources)(struct pci_dev *);
187
188 /* Called for each PCI bus in the system when it's probed */
189 void (*pcibios_fixup_bus)(struct pci_bus *);
190
191 /* Called when pci_enable_device() is called (initial=0) or
192 * when a device with no assigned resource is found (initial=1).
193 * Returns 0 to allow assignment/enabling of the device. */
194 int (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
195
196 /* For interrupt routing */
197 unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
198 int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
199
200 /* Called in indirect_* to avoid touching devices */
201 int (*pci_exclude_device)(unsigned char, unsigned char);
202
203 /* Called at then very end of pcibios_init() */
204 void (*pcibios_after_init)(void);
205
206 /* this is for modules, since _machine can be a define -- Cort */
207 int ppc_machine;
208
209#ifdef CONFIG_KEXEC
210 /* Called to shutdown machine specific hardware not already controlled
211 * by other drivers.
212 * XXX Should we move this one out of kexec scope?
213 */
214 void (*machine_shutdown)(void);
215
216 /* Called to do the minimal shutdown needed to run a kexec'd kernel
217 * to run successfully.
218 * XXX Should we move this one out of kexec scope?
219 */
220 void (*machine_crash_shutdown)(void);
221
222 /* Called to do what every setup is needed on image and the
223 * reboot code buffer. Returns 0 on success.
224 * Provide your own (maybe dummy) implementation if your platform
225 * claims to support kexec.
226 */
227 int (*machine_kexec_prepare)(struct kimage *image);
228
229 /* Called to handle any machine specific cleanup on image */
230 void (*machine_kexec_cleanup)(struct kimage *image);
231
232 /* Called to perform the _real_ kexec.
233 * Do NOT allocate memory or fail here. We are past the point of
234 * no return.
235 */
236 void (*machine_kexec)(struct kimage *image);
237#endif /* CONFIG_KEXEC */
238#endif /* CONFIG_PPC32 */
239};
240
241extern void default_idle(void);
242extern void native_idle(void);
243
244extern struct machdep_calls ppc_md;
245extern char cmd_line[COMMAND_LINE_SIZE];
246
247#ifdef CONFIG_PPC_PMAC
248/*
249 * Power macintoshes have either a CUDA, PMU or SMU controlling
250 * system reset, power, NVRAM, RTC.
251 */
252typedef enum sys_ctrler_kind {
253 SYS_CTRLER_UNKNOWN = 0,
254 SYS_CTRLER_CUDA = 1,
255 SYS_CTRLER_PMU = 2,
256 SYS_CTRLER_SMU = 3,
257} sys_ctrler_t;
258extern sys_ctrler_t sys_ctrler;
259
260#endif /* CONFIG_PPC_PMAC */
261
262extern void setup_pci_ptrs(void);
263
264#ifdef CONFIG_SMP
265/* Poor default implementations */
266extern void __devinit smp_generic_give_timebase(void);
267extern void __devinit smp_generic_take_timebase(void);
268#endif /* CONFIG_SMP */
269
270
271/* Functions to produce codes on the leds.
272 * The SRC code should be unique for the message category and should
273 * be limited to the lower 24 bits (the upper 8 are set by these funcs),
274 * and (for boot & dump) should be sorted numerically in the order
275 * the events occur.
276 */
277/* Print a boot progress message. */
278void ppc64_boot_msg(unsigned int src, const char *msg);
279/* Print a termination message (print only -- does not stop the kernel) */
280void ppc64_terminate_msg(unsigned int src, const char *msg);
281
282static inline void log_error(char *buf, unsigned int err_type, int fatal)
283{
284 if (ppc_md.log_error)
285 ppc_md.log_error(buf, err_type, fatal);
286}
287
288#endif /* __KERNEL__ */
289#endif /* _PPC64_MACHDEP_H */