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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 | #ifndef _ASM_POWERPC_MACHDEP_H #define _ASM_POWERPC_MACHDEP_H #ifdef __KERNEL__ /* * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include <linux/seq_file.h> #include <linux/init.h> #include <linux/dma-mapping.h> #include <linux/export.h> #include <asm/setup.h> /* We export this macro for external modules like Alsa to know if * ppc_md.feature_call is implemented or not */ #define CONFIG_PPC_HAS_FEATURE_CALLS struct pt_regs; struct pci_bus; struct device_node; struct iommu_table; struct rtc_time; struct file; struct pci_controller; struct kimage; struct pci_host_bridge; struct machdep_calls { char *name; #ifdef CONFIG_PPC64 void (*hpte_invalidate)(unsigned long slot, unsigned long vpn, int bpsize, int apsize, int ssize, int local); long (*hpte_updatepp)(unsigned long slot, unsigned long newpp, unsigned long vpn, int bpsize, int apsize, int ssize, unsigned long flags); void (*hpte_updateboltedpp)(unsigned long newpp, unsigned long ea, int psize, int ssize); long (*hpte_insert)(unsigned long hpte_group, unsigned long vpn, unsigned long prpn, unsigned long rflags, unsigned long vflags, int psize, int apsize, int ssize); long (*hpte_remove)(unsigned long hpte_group); void (*hpte_removebolted)(unsigned long ea, int psize, int ssize); void (*flush_hash_range)(unsigned long number, int local); void (*hugepage_invalidate)(unsigned long vsid, unsigned long addr, unsigned char *hpte_slot_array, int psize, int ssize, int local); /* * Special for kexec. * To be called in real mode with interrupts disabled. No locks are * taken as such, concurrent access on pre POWER5 hardware could result * in a deadlock. * The linear mapping is destroyed as well. */ void (*hpte_clear_all)(void); void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size, unsigned long flags, void *caller); void (*iounmap)(volatile void __iomem *token); #ifdef CONFIG_PM void (*iommu_save)(void); void (*iommu_restore)(void); #endif #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE unsigned long (*memory_block_size)(void); #endif #endif /* CONFIG_PPC64 */ /* Platform set_dma_mask and dma_get_required_mask overrides */ int (*dma_set_mask)(struct device *dev, u64 dma_mask); u64 (*dma_get_required_mask)(struct device *dev); int (*probe)(void); void (*setup_arch)(void); /* Optional, may be NULL */ void (*init_early)(void); /* Optional, may be NULL. */ void (*show_cpuinfo)(struct seq_file *m); void (*show_percpuinfo)(struct seq_file *m, int i); /* Returns the current operating frequency of "cpu" in Hz */ unsigned long (*get_proc_freq)(unsigned int cpu); void (*init_IRQ)(void); /* Return an irq, or NO_IRQ to indicate there are none pending. */ unsigned int (*get_irq)(void); /* PCI stuff */ /* Called after allocating resources */ void (*pcibios_fixup)(void); void (*pci_irq_fixup)(struct pci_dev *dev); int (*pcibios_root_bridge_prepare)(struct pci_host_bridge *bridge); /* To setup PHBs when using automatic OF platform driver for PCI */ int (*pci_setup_phb)(struct pci_controller *host); void (*restart)(char *cmd); void (*halt)(void); void (*panic)(char *str); void (*cpu_die)(void); long (*time_init)(void); /* Optional, may be NULL */ int (*set_rtc_time)(struct rtc_time *); void (*get_rtc_time)(struct rtc_time *); unsigned long (*get_boot_time)(void); unsigned char (*rtc_read_val)(int addr); void (*rtc_write_val)(int addr, unsigned char val); void (*calibrate_decr)(void); void (*progress)(char *, unsigned short); /* Interface for platform error logging */ void (*log_error)(char *buf, unsigned int err_type, int fatal); unsigned char (*nvram_read_val)(int addr); void (*nvram_write_val)(int addr, unsigned char val); ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index); ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index); ssize_t (*nvram_size)(void); void (*nvram_sync)(void); /* Exception handlers */ int (*system_reset_exception)(struct pt_regs *regs); int (*machine_check_exception)(struct pt_regs *regs); int (*handle_hmi_exception)(struct pt_regs *regs); /* Early exception handlers called in realmode */ int (*hmi_exception_early)(struct pt_regs *regs); /* Called during machine check exception to retrive fixup address. */ bool (*mce_check_early_recovery)(struct pt_regs *regs); /* Motherboard/chipset features. This is a kind of general purpose * hook used to control some machine specific features (like reset * lines, chip power control, etc...). */ long (*feature_call)(unsigned int feature, ...); /* Get legacy PCI/IDE interrupt mapping */ int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel); /* Get access protection for /dev/mem */ pgprot_t (*phys_mem_access_prot)(struct file *file, unsigned long pfn, unsigned long size, pgprot_t vma_prot); /* * Function for waiting for work with reduced power in idle loop; * called with interrupts disabled. */ void (*power_save)(void); /* Function to enable performance monitor counters for this platform, called once per cpu. */ void (*enable_pmcs)(void); /* Set DABR for this platform, leave empty for default implemenation */ int (*set_dabr)(unsigned long dabr, unsigned long dabrx); /* Set DAWR for this platform, leave empty for default implemenation */ int (*set_dawr)(unsigned long dawr, unsigned long dawrx); #ifdef CONFIG_PPC32 /* XXX for now */ /* A general init function, called by ppc_init in init/main.c. May be NULL. */ void (*init)(void); void (*kgdb_map_scc)(void); /* * optional PCI "hooks" */ /* Called at then very end of pcibios_init() */ void (*pcibios_after_init)(void); #endif /* CONFIG_PPC32 */ /* Called in indirect_* to avoid touching devices */ int (*pci_exclude_device)(struct pci_controller *, unsigned char, unsigned char); /* Called after PPC generic resource fixup to perform machine specific fixups */ void (*pcibios_fixup_resources)(struct pci_dev *); /* Called for each PCI bus in the system when it's probed */ void (*pcibios_fixup_bus)(struct pci_bus *); /* Called after scan and before resource survey */ void (*pcibios_fixup_phb)(struct pci_controller *hose); #ifdef CONFIG_PCI_IOV void (*pcibios_fixup_sriov)(struct pci_dev *pdev); resource_size_t (*pcibios_iov_resource_alignment)(struct pci_dev *, int resno); #endif /* CONFIG_PCI_IOV */ /* Called to shutdown machine specific hardware not already controlled * by other drivers. */ void (*machine_shutdown)(void); #ifdef CONFIG_KEXEC void (*kexec_cpu_down)(int crash_shutdown, int secondary); /* Called to do what every setup is needed on image and the * reboot code buffer. Returns 0 on success. * Provide your own (maybe dummy) implementation if your platform * claims to support kexec. */ int (*machine_kexec_prepare)(struct kimage *image); /* Called to perform the _real_ kexec. * Do NOT allocate memory or fail here. We are past the point of * no return. */ void (*machine_kexec)(struct kimage *image); #endif /* CONFIG_KEXEC */ #ifdef CONFIG_SUSPEND /* These are called to disable and enable, respectively, IRQs when * entering a suspend state. If NULL, then the generic versions * will be called. The generic versions disable/enable the * decrementer along with interrupts. */ void (*suspend_disable_irqs)(void); void (*suspend_enable_irqs)(void); #endif int (*suspend_disable_cpu)(void); #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE ssize_t (*cpu_probe)(const char *, size_t); ssize_t (*cpu_release)(const char *, size_t); #endif #ifdef CONFIG_ARCH_RANDOM int (*get_random_seed)(unsigned long *v); #endif }; extern void e500_idle(void); extern void power4_idle(void); extern void power7_idle(void); extern void ppc6xx_idle(void); extern void book3e_idle(void); /* * ppc_md contains a copy of the machine description structure for the * current platform. machine_id contains the initial address where the * description was found during boot. */ extern struct machdep_calls ppc_md; extern struct machdep_calls *machine_id; #define __machine_desc __attribute__ ((__section__ (".machine.desc"))) #define define_machine(name) \ extern struct machdep_calls mach_##name; \ EXPORT_SYMBOL(mach_##name); \ struct machdep_calls mach_##name __machine_desc = #define machine_is(name) \ ({ \ extern struct machdep_calls mach_##name \ __attribute__((weak)); \ machine_id == &mach_##name; \ }) extern void probe_machine(void); #ifdef CONFIG_PPC_PMAC /* * Power macintoshes have either a CUDA, PMU or SMU controlling * system reset, power, NVRAM, RTC. */ typedef enum sys_ctrler_kind { SYS_CTRLER_UNKNOWN = 0, SYS_CTRLER_CUDA = 1, SYS_CTRLER_PMU = 2, SYS_CTRLER_SMU = 3, } sys_ctrler_t; extern sys_ctrler_t sys_ctrler; #endif /* CONFIG_PPC_PMAC */ static inline void log_error(char *buf, unsigned int err_type, int fatal) { if (ppc_md.log_error) ppc_md.log_error(buf, err_type, fatal); } #define __define_machine_initcall(mach, fn, id) \ static int __init __machine_initcall_##mach##_##fn(void) { \ if (machine_is(mach)) return fn(); \ return 0; \ } \ __define_initcall(__machine_initcall_##mach##_##fn, id); #define machine_early_initcall(mach, fn) __define_machine_initcall(mach, fn, early) #define machine_core_initcall(mach, fn) __define_machine_initcall(mach, fn, 1) #define machine_core_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 1s) #define machine_postcore_initcall(mach, fn) __define_machine_initcall(mach, fn, 2) #define machine_postcore_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 2s) #define machine_arch_initcall(mach, fn) __define_machine_initcall(mach, fn, 3) #define machine_arch_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 3s) #define machine_subsys_initcall(mach, fn) __define_machine_initcall(mach, fn, 4) #define machine_subsys_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 4s) #define machine_fs_initcall(mach, fn) __define_machine_initcall(mach, fn, 5) #define machine_fs_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 5s) #define machine_rootfs_initcall(mach, fn) __define_machine_initcall(mach, fn, rootfs) #define machine_device_initcall(mach, fn) __define_machine_initcall(mach, fn, 6) #define machine_device_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 6s) #define machine_late_initcall(mach, fn) __define_machine_initcall(mach, fn, 7) #define machine_late_initcall_sync(mach, fn) __define_machine_initcall(mach, fn, 7s) #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_MACHDEP_H */ |