diff options
| -rw-r--r-- | include/asm-powerpc/btext.h (renamed from include/asm-ppc64/btext.h) | 0 | ||||
| -rw-r--r-- | include/asm-powerpc/delay.h (renamed from include/asm-ppc64/delay.h) | 19 | ||||
| -rw-r--r-- | include/asm-powerpc/eeh.h (renamed from include/asm-ppc64/eeh.h) | 0 | ||||
| -rw-r--r-- | include/asm-powerpc/floppy.h (renamed from include/asm-ppc64/floppy.h) | 25 | ||||
| -rw-r--r-- | include/asm-powerpc/hvconsole.h (renamed from include/asm-ppc64/hvconsole.h) | 0 | ||||
| -rw-r--r-- | include/asm-powerpc/hvcserver.h (renamed from include/asm-ppc64/hvcserver.h) | 0 | ||||
| -rw-r--r-- | include/asm-powerpc/nvram.h (renamed from include/asm-ppc64/nvram.h) | 16 | ||||
| -rw-r--r-- | include/asm-powerpc/serial.h (renamed from include/asm-ppc64/serial.h) | 19 | ||||
| -rw-r--r-- | include/asm-ppc/nvram.h | 73 | ||||
| -rw-r--r-- | include/asm-ppc64/prom.h | 220 | ||||
| -rw-r--r-- | include/asm-ppc64/system.h | 310 |
11 files changed, 42 insertions, 640 deletions
diff --git a/include/asm-ppc64/btext.h b/include/asm-powerpc/btext.h index 71cce36..71cce36 100644 --- a/include/asm-ppc64/btext.h +++ b/include/asm-powerpc/btext.h diff --git a/include/asm-ppc64/delay.h b/include/asm-powerpc/delay.h index 05f198c..1492aa9 100644 --- a/include/asm-ppc64/delay.h +++ b/include/asm-powerpc/delay.h @@ -1,5 +1,5 @@ -#ifndef _PPC64_DELAY_H -#define _PPC64_DELAY_H +#ifndef _ASM_POWERPC_DELAY_H +#define _ASM_POWERPC_DELAY_H /* * Copyright 1996, Paul Mackerras. @@ -15,10 +15,17 @@ extern unsigned long tb_ticks_per_usec; -/* define these here to prevent circular dependencies */ +#ifdef CONFIG_PPC64 +/* define these here to prevent circular dependencies */ +/* these instructions control the thread priority on multi-threaded cpus */ #define __HMT_low() asm volatile("or 1,1,1") #define __HMT_medium() asm volatile("or 2,2,2") -#define __barrier() asm volatile("":::"memory") +#else +#define __HMT_low() +#define __HMT_medium() +#endif + +#define __barrier() asm volatile("" ::: "memory") static inline unsigned long __get_tb(void) { @@ -32,7 +39,7 @@ static inline void __delay(unsigned long loops) { unsigned long start = __get_tb(); - while((__get_tb()-start) < loops) + while((__get_tb() - start) < loops) __HMT_low(); __HMT_medium(); __barrier(); @@ -45,4 +52,4 @@ static inline void udelay(unsigned long usecs) __delay(loops); } -#endif /* _PPC64_DELAY_H */ +#endif /* _ASM_POWERPC_DELAY_H */ diff --git a/include/asm-ppc64/eeh.h b/include/asm-powerpc/eeh.h index 89f26ab..89f26ab 100644 --- a/include/asm-ppc64/eeh.h +++ b/include/asm-powerpc/eeh.h diff --git a/include/asm-ppc64/floppy.h b/include/asm-powerpc/floppy.h index 5c497b5..64276a3 100644 --- a/include/asm-ppc64/floppy.h +++ b/include/asm-powerpc/floppy.h @@ -7,22 +7,22 @@ * * Copyright (C) 1995 */ -#ifndef __ASM_PPC64_FLOPPY_H -#define __ASM_PPC64_FLOPPY_H +#ifndef __ASM_POWERPC_FLOPPY_H +#define __ASM_POWERPC_FLOPPY_H #include <linux/config.h> #include <asm/machdep.h> -#define fd_inb(port) inb_p(port) -#define fd_outb(value,port) outb_p(value,port) +#define fd_inb(port) inb_p(port) +#define fd_outb(value,port) outb_p(value,port) #define fd_enable_dma() enable_dma(FLOPPY_DMA) #define fd_disable_dma() disable_dma(FLOPPY_DMA) -#define fd_request_dma() request_dma(FLOPPY_DMA,"floppy") +#define fd_request_dma() request_dma(FLOPPY_DMA, "floppy") #define fd_free_dma() free_dma(FLOPPY_DMA) #define fd_clear_dma_ff() clear_dma_ff(FLOPPY_DMA) -#define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA,mode) -#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count) +#define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA, mode) +#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA, count) #define fd_enable_irq() enable_irq(FLOPPY_IRQ) #define fd_disable_irq() disable_irq(FLOPPY_IRQ) #define fd_cacheflush(addr,size) /* nothing */ @@ -35,10 +35,10 @@ #include <linux/pci.h> -#define fd_dma_setup(addr,size,mode,io) ppc64_fd_dma_setup(addr,size,mode,io) +#define fd_dma_setup(addr,size,mode,io) powerpc_fd_dma_setup(addr,size,mode,io) -static __inline__ int -ppc64_fd_dma_setup(char *addr, unsigned long size, int mode, int io) +static __inline__ int powerpc_fd_dma_setup(char *addr, unsigned long size, + int mode, int io) { static unsigned long prev_size; static dma_addr_t bus_addr = 0; @@ -55,9 +55,8 @@ ppc64_fd_dma_setup(char *addr, unsigned long size, int mode, int io) bus_addr = 0; } - if (!bus_addr) /* need to map it */ { + if (!bus_addr) /* need to map it */ bus_addr = pci_map_single(NULL, addr, size, dir); - } /* remember this one as prev */ prev_addr = addr; @@ -103,4 +102,4 @@ static int FDC2 = -1; #define EXTRA_FLOPPY_PARAMS -#endif /* __ASM_PPC64_FLOPPY_H */ +#endif /* __ASM_POWERPC_FLOPPY_H */ diff --git a/include/asm-ppc64/hvconsole.h b/include/asm-powerpc/hvconsole.h index 6da93ce..6da93ce 100644 --- a/include/asm-ppc64/hvconsole.h +++ b/include/asm-powerpc/hvconsole.h diff --git a/include/asm-ppc64/hvcserver.h b/include/asm-powerpc/hvcserver.h index aecba96..aecba96 100644 --- a/include/asm-ppc64/hvcserver.h +++ b/include/asm-powerpc/hvcserver.h diff --git a/include/asm-ppc64/nvram.h b/include/asm-powerpc/nvram.h index def47d7..1858244 100644 --- a/include/asm-ppc64/nvram.h +++ b/include/asm-powerpc/nvram.h @@ -1,6 +1,5 @@ /* - * PreP compliant NVRAM access - * This needs to be updated for PPC64 + * NVRAM definitions and access functions. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -8,8 +7,8 @@ * 2 of the License, or (at your option) any later version. */ -#ifndef _PPC64_NVRAM_H -#define _PPC64_NVRAM_H +#ifndef _ASM_POWERPC_NVRAM_H +#define _ASM_POWERPC_NVRAM_H #define NVRW_CNT 0x20 #define NVRAM_HEADER_LEN 16 /* sizeof(struct nvram_header) */ @@ -88,7 +87,11 @@ extern u8 pmac_xpram_read(int xpaddr); extern void pmac_xpram_write(int xpaddr, u8 data); /* Synchronize NVRAM */ -extern int nvram_sync(void); +extern void nvram_sync(void); + +/* Normal access to NVRAM */ +extern unsigned char nvram_read_byte(int i); +extern void nvram_write_byte(unsigned char c, int i); /* Some offsets in XPRAM */ #define PMAC_XPRAM_MACHINE_LOC 0xe4 @@ -112,5 +115,6 @@ struct pmac_machine_location { _IOWR('p', 0x40, int) #define IOC_NVRAM_GET_OFFSET _IOWR('p', 0x42, int) /* Get NVRAM partition offset */ +#define IOC_NVRAM_SYNC _IO('p', 0x43) /* Sync NVRAM image */ -#endif /* _PPC64_NVRAM_H */ +#endif /* _ASM_POWERPC_NVRAM_H */ diff --git a/include/asm-ppc64/serial.h b/include/asm-powerpc/serial.h index d6bcb79..b273d63 100644 --- a/include/asm-ppc64/serial.h +++ b/include/asm-powerpc/serial.h @@ -1,21 +1,16 @@ /* - * include/asm-ppc64/serial.h - */ -#ifndef _PPC64_SERIAL_H -#define _PPC64_SERIAL_H - -/* - * This assumes you have a 1.8432 MHz clock for your UART. - * - * It'd be nice if someone built a serial card with a 24.576 MHz - * clock, since the 16550A is capable of handling a top speed of 1.5 - * megabits/second; but this requires the faster clock. - * * 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. */ +#ifndef _ASM_POWERPC_SERIAL_H +#define _ASM_POWERPC_SERIAL_H + +/* + * Serial ports are not listed here, because they are discovered + * through the device tree. + */ /* Default baud base if not found in device-tree */ #define BASE_BAUD ( 1843200 / 16 ) diff --git a/include/asm-ppc/nvram.h b/include/asm-ppc/nvram.h deleted file mode 100644 index 31ef16e..0000000 --- a/include/asm-ppc/nvram.h +++ /dev/null @@ -1,73 +0,0 @@ -/* - * PreP compliant NVRAM access - */ - -#ifdef __KERNEL__ -#ifndef _PPC_NVRAM_H -#define _PPC_NVRAM_H - -#define NVRAM_AS0 0x74 -#define NVRAM_AS1 0x75 -#define NVRAM_DATA 0x77 - - -/* RTC Offsets */ - -#define MOTO_RTC_SECONDS 0x1FF9 -#define MOTO_RTC_MINUTES 0x1FFA -#define MOTO_RTC_HOURS 0x1FFB -#define MOTO_RTC_DAY_OF_WEEK 0x1FFC -#define MOTO_RTC_DAY_OF_MONTH 0x1FFD -#define MOTO_RTC_MONTH 0x1FFE -#define MOTO_RTC_YEAR 0x1FFF -#define MOTO_RTC_CONTROLA 0x1FF8 -#define MOTO_RTC_CONTROLB 0x1FF9 - -/* PowerMac specific nvram stuffs */ - -enum { - pmac_nvram_OF, /* Open Firmware partition */ - pmac_nvram_XPRAM, /* MacOS XPRAM partition */ - pmac_nvram_NR /* MacOS Name Registry partition */ -}; - -/* Return partition offset in nvram */ -extern int pmac_get_partition(int partition); - -/* Direct access to XPRAM on PowerMacs */ -extern u8 pmac_xpram_read(int xpaddr); -extern void pmac_xpram_write(int xpaddr, u8 data); - -/* Synchronize NVRAM */ -extern void nvram_sync(void); - -/* Normal access to NVRAM */ -extern unsigned char nvram_read_byte(int i); -extern void nvram_write_byte(unsigned char c, int i); - -/* Some offsets in XPRAM */ -#define PMAC_XPRAM_MACHINE_LOC 0xe4 -#define PMAC_XPRAM_SOUND_VOLUME 0x08 - -/* Machine location structure in PowerMac XPRAM */ -struct pmac_machine_location { - unsigned int latitude; /* 2+30 bit Fractional number */ - unsigned int longitude; /* 2+30 bit Fractional number */ - unsigned int delta; /* mix of GMT delta and DLS */ -}; - -/* - * /dev/nvram ioctls - * - * Note that PMAC_NVRAM_GET_OFFSET is still supported, but is - * definitely obsolete. Do not use it if you can avoid it - */ - -#define OBSOLETE_PMAC_NVRAM_GET_OFFSET \ - _IOWR('p', 0x40, int) - -#define IOC_NVRAM_GET_OFFSET _IOWR('p', 0x42, int) /* Get NVRAM partition offset */ -#define IOC_NVRAM_SYNC _IO('p', 0x43) /* Sync NVRAM image */ - -#endif -#endif /* __KERNEL__ */ diff --git a/include/asm-ppc64/prom.h b/include/asm-ppc64/prom.h deleted file mode 100644 index ddfe186..0000000 --- a/include/asm-ppc64/prom.h +++ /dev/null @@ -1,220 +0,0 @@ -#ifndef _PPC64_PROM_H -#define _PPC64_PROM_H - -/* - * Definitions for talking to the Open Firmware PROM on - * Power Macintosh computers. - * - * Copyright (C) 1996 Paul Mackerras. - * - * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp. - * - * 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/config.h> -#include <linux/proc_fs.h> -#include <asm/atomic.h> - -#define PTRRELOC(x) ((typeof(x))((unsigned long)(x) - offset)) -#define PTRUNRELOC(x) ((typeof(x))((unsigned long)(x) + offset)) -#define RELOC(x) (*PTRRELOC(&(x))) - -/* Definitions used by the flattened device tree */ -#define OF_DT_HEADER 0xd00dfeed /* marker */ -#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */ -#define OF_DT_END_NODE 0x2 /* End node */ -#define OF_DT_PROP 0x3 /* Property: name off, size, - * content */ -#define OF_DT_NOP 0x4 /* nop */ -#define OF_DT_END 0x9 - -#define OF_DT_VERSION 0x10 - -/* - * This is what gets passed to the kernel by prom_init or kexec - * - * The dt struct contains the device tree structure, full pathes and - * property contents. The dt strings contain a separate block with just - * the strings for the property names, and is fully page aligned and - * self contained in a page, so that it can be kept around by the kernel, - * each property name appears only once in this page (cheap compression) - * - * the mem_rsvmap contains a map of reserved ranges of physical memory, - * passing it here instead of in the device-tree itself greatly simplifies - * the job of everybody. It's just a list of u64 pairs (base/size) that - * ends when size is 0 - */ -struct boot_param_header -{ - u32 magic; /* magic word OF_DT_HEADER */ - u32 totalsize; /* total size of DT block */ - u32 off_dt_struct; /* offset to structure */ - u32 off_dt_strings; /* offset to strings */ - u32 off_mem_rsvmap; /* offset to memory reserve map */ - u32 version; /* format version */ - u32 last_comp_version; /* last compatible version */ - /* version 2 fields below */ - u32 boot_cpuid_phys; /* Physical CPU id we're booting on */ - /* version 3 fields below */ - u32 dt_strings_size; /* size of the DT strings block */ -}; - - - -typedef u32 phandle; -typedef u32 ihandle; - -struct address_range { - unsigned long space; - unsigned long address; - unsigned long size; -}; - -struct interrupt_info { - int line; - int sense; /* +ve/-ve logic, edge or level, etc. */ -}; - -struct pci_address { - u32 a_hi; - u32 a_mid; - u32 a_lo; -}; - -struct isa_address { - u32 a_hi; - u32 a_lo; -}; - -struct isa_range { - struct isa_address isa_addr; - struct pci_address pci_addr; - unsigned int size; -}; - -struct reg_property { - unsigned long address; - unsigned long size; -}; - -struct reg_property32 { - unsigned int address; - unsigned int size; -}; - -struct reg_property64 { - unsigned long address; - unsigned long size; -}; - -struct property { - char *name; - int length; - unsigned char *value; - struct property *next; -}; - -struct device_node { - char *name; - char *type; - phandle node; - phandle linux_phandle; - int n_addrs; - struct address_range *addrs; - int n_intrs; - struct interrupt_info *intrs; - char *full_name; - - struct property *properties; - struct device_node *parent; - struct device_node *child; - struct device_node *sibling; - struct device_node *next; /* next device of same type */ - struct device_node *allnext; /* next in list of all nodes */ - struct proc_dir_entry *pde; /* this node's proc directory */ - struct kref kref; - unsigned long _flags; - void *data; -#ifdef CONFIG_PPC_ISERIES - struct list_head Device_List; -#endif -}; - -extern struct device_node *of_chosen; - -/* flag descriptions */ -#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */ - -#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags) -#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags) - -/* - * Until 32-bit ppc can add proc_dir_entries to its device_node - * definition, we cannot refer to pde, name_link, and addr_link - * in arch-independent code. - */ -#define HAVE_ARCH_DEVTREE_FIXUPS - -static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de) -{ - dn->pde = de; -} - - -/* OBSOLETE: Old stlye node lookup */ -extern struct device_node *find_devices(const char *name); -extern struct device_node *find_type_devices(const char *type); -extern struct device_node *find_path_device(const char *path); -extern struct device_node *find_compatible_devices(const char *type, - const char *compat); -extern struct device_node *find_all_nodes(void); - -/* New style node lookup */ -extern struct device_node *of_find_node_by_name(struct device_node *from, - const char *name); -extern struct device_node *of_find_node_by_type(struct device_node *from, - const char *type); -extern struct device_node *of_find_compatible_node(struct device_node *from, - const char *type, const char *compat); -extern struct device_node *of_find_node_by_path(const char *path); -extern struct device_node *of_find_node_by_phandle(phandle handle); -extern struct device_node *of_find_all_nodes(struct device_node *prev); -extern struct device_node *of_get_parent(const struct device_node *node); -extern struct device_node *of_get_next_child(const struct device_node *node, - struct device_node *prev); -extern struct device_node *of_node_get(struct device_node *node); -extern void of_node_put(struct device_node *node); - -/* For scanning the flat device-tree at boot time */ -int __init of_scan_flat_dt(int (*it)(unsigned long node, - const char *uname, int depth, - void *data), - void *data); -void* __init of_get_flat_dt_prop(unsigned long node, const char *name, - unsigned long *size); - -/* For updating the device tree at runtime */ -extern void of_attach_node(struct device_node *); -extern void of_detach_node(const struct device_node *); - -/* Other Prototypes */ -extern unsigned long prom_init(unsigned long, unsigned long, unsigned long, - unsigned long, unsigned long); -extern void finish_device_tree(void); -extern void unflatten_device_tree(void); -extern void early_init_devtree(void *); -extern int device_is_compatible(struct device_node *device, const char *); -extern int machine_is_compatible(const char *compat); -extern unsigned char *get_property(struct device_node *node, const char *name, - int *lenp); -extern void print_properties(struct device_node *node); -extern int prom_n_addr_cells(struct device_node* np); -extern int prom_n_size_cells(struct device_node* np); -extern int prom_n_intr_cells(struct device_node* np); -extern void prom_get_irq_senses(unsigned char *senses, int off, int max); -extern int prom_add_property(struct device_node* np, struct property* prop); - -#endif /* _PPC64_PROM_H */ diff --git a/include/asm-ppc64/system.h b/include/asm-ppc64/system.h deleted file mode 100644 index bf9a6ab..0000000 --- a/include/asm-ppc64/system.h +++ /dev/null @@ -1,310 +0,0 @@ -#ifndef __PPC64_SYSTEM_H -#define __PPC64_SYSTEM_H - -/* - * 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/config.h> -#include <linux/compiler.h> -#include <asm/page.h> -#include <asm/processor.h> -#include <asm/hw_irq.h> -#include <asm/synch.h> - -/* - * Memory barrier. - * The sync instruction guarantees that all memory accesses initiated - * by this processor have been performed (with respect to all other - * mechanisms that access memory). The eieio instruction is a barrier - * providing an ordering (separately) for (a) cacheable stores and (b) - * loads and stores to non-cacheable memory (e.g. I/O devices). - * - * mb() prevents loads and stores being reordered across this point. - * rmb() prevents loads being reordered across this point. - * wmb() prevents stores being reordered across this point. - * read_barrier_depends() prevents data-dependent loads being reordered - * across this point (nop on PPC). - * - * We have to use the sync instructions for mb(), since lwsync doesn't - * order loads with respect to previous stores. Lwsync is fine for - * rmb(), though. - * For wmb(), we use sync since wmb is used in drivers to order - * stores to system memory with respect to writes to the device. - * However, smp_wmb() can be a lighter-weight eieio barrier on - * SMP since it is only used to order updates to system memory. - */ -#define mb() __asm__ __volatile__ ("sync" : : : "memory") -#define rmb() __asm__ __volatile__ ("lwsync" : : : "memory") -#define wmb() __asm__ __volatile__ ("sync" : : : "memory") -#define read_barrier_depends() do { } while(0) - -#define set_mb(var, value) do { var = value; smp_mb(); } while (0) -#define set_wmb(var, value) do { var = value; smp_wmb(); } while (0) - -#ifdef CONFIG_SMP -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() eieio() -#define smp_read_barrier_depends() read_barrier_depends() -#else -#define smp_mb() __asm__ __volatile__("": : :"memory") -#define smp_rmb() __asm__ __volatile__("": : :"memory") -#define smp_wmb() __asm__ __volatile__("": : :"memory") -#define smp_read_barrier_depends() do { } while(0) -#endif /* CONFIG_SMP */ - -#ifdef __KERNEL__ -struct task_struct; -struct pt_regs; - -#ifdef CONFIG_DEBUGGER - -extern int (*__debugger)(struct pt_regs *regs); -extern int (*__debugger_ipi)(struct pt_regs *regs); -extern int (*__debugger_bpt)(struct pt_regs *regs); -extern int (*__debugger_sstep)(struct pt_regs *regs); -extern int (*__debugger_iabr_match)(struct pt_regs *regs); -extern int (*__debugger_dabr_match)(struct pt_regs *regs); -extern int (*__debugger_fault_handler)(struct pt_regs *regs); - -#define DEBUGGER_BOILERPLATE(__NAME) \ -static inline int __NAME(struct pt_regs *regs) \ -{ \ - if (unlikely(__ ## __NAME)) \ - return __ ## __NAME(regs); \ - return 0; \ -} - -DEBUGGER_BOILERPLATE(debugger) -DEBUGGER_BOILERPLATE(debugger_ipi) -DEBUGGER_BOILERPLATE(debugger_bpt) -DEBUGGER_BOILERPLATE(debugger_sstep) -DEBUGGER_BOILERPLATE(debugger_iabr_match) -DEBUGGER_BOILERPLATE(debugger_dabr_match) -DEBUGGER_BOILERPLATE(debugger_fault_handler) - -#ifdef CONFIG_XMON -extern void xmon_init(int enable); -#endif - -#else -static inline int debugger(struct pt_regs *regs) { return 0; } -static inline int debugger_ipi(struct pt_regs *regs) { return 0; } -static inline int debugger_bpt(struct pt_regs *regs) { return 0; } -static inline int debugger_sstep(struct pt_regs *regs) { return 0; } -static inline int debugger_iabr_match(struct pt_regs *regs) { return 0; } -static inline int debugger_dabr_match(struct pt_regs *regs) { return 0; } -static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; } -#endif - -extern int set_dabr(unsigned long dabr); -extern void _exception(int signr, struct pt_regs *regs, int code, - unsigned long addr); -extern int fix_alignment(struct pt_regs *regs); -extern void bad_page_fault(struct pt_regs *regs, unsigned long address, - int sig); -extern void show_regs(struct pt_regs * regs); -extern void low_hash_fault(struct pt_regs *regs, unsigned long address); -extern int die(const char *str, struct pt_regs *regs, long err); - -extern int _get_PVR(void); -extern void giveup_fpu(struct task_struct *); -extern void disable_kernel_fp(void); -extern void flush_fp_to_thread(struct task_struct *); -extern void enable_kernel_fp(void); -extern void giveup_altivec(struct task_struct *); -extern void disable_kernel_altivec(void); -extern void enable_kernel_altivec(void); -extern int emulate_altivec(struct pt_regs *); -extern void cvt_fd(float *from, double *to, struct thread_struct *thread); -extern void cvt_df(double *from, float *to, struct thread_struct *thread); - -#ifdef CONFIG_ALTIVEC -extern void flush_altivec_to_thread(struct task_struct *); -#else -static inline void flush_altivec_to_thread(struct task_struct *t) -{ -} -#endif - -static inline void flush_spe_to_thread(struct task_struct *t) -{ -} - -extern int mem_init_done; /* set on boot once kmalloc can be called */ -extern unsigned long memory_limit; - -/* EBCDIC -> ASCII conversion for [0-9A-Z] on iSeries */ -extern unsigned char e2a(unsigned char); - -extern struct task_struct *__switch_to(struct task_struct *, - struct task_struct *); -#define switch_to(prev, next, last) ((last) = __switch_to((prev), (next))) - -struct thread_struct; -extern struct task_struct * _switch(struct thread_struct *prev, - struct thread_struct *next); - -extern unsigned long klimit; - -extern int powersave_nap; /* set if nap mode can be used in idle loop */ - -/* - * Atomic exchange - * - * Changes the memory location '*ptr' to be val and returns - * the previous value stored there. - * - * Inline asm pulled from arch/ppc/kernel/misc.S so ppc64 - * is more like most of the other architectures. - */ -static __inline__ unsigned long -__xchg_u32(volatile unsigned int *m, unsigned long val) -{ - unsigned long dummy; - - __asm__ __volatile__( - EIEIO_ON_SMP -"1: lwarx %0,0,%3 # __xchg_u32\n\ - stwcx. %2,0,%3\n\ -2: bne- 1b" - ISYNC_ON_SMP - : "=&r" (dummy), "=m" (*m) - : "r" (val), "r" (m) - : "cc", "memory"); - - return (dummy); -} - -static __inline__ unsigned long -__xchg_u64(volatile long *m, unsigned long val) -{ - unsigned long dummy; - - __asm__ __volatile__( - EIEIO_ON_SMP -"1: ldarx %0,0,%3 # __xchg_u64\n\ - stdcx. %2,0,%3\n\ -2: bne- 1b" - ISYNC_ON_SMP - : "=&r" (dummy), "=m" (*m) - : "r" (val), "r" (m) - : "cc", "memory"); - - return (dummy); -} - -/* - * This function doesn't exist, so you'll get a linker error - * if something tries to do an invalid xchg(). - */ -extern void __xchg_called_with_bad_pointer(void); - -static __inline__ unsigned long -__xchg(volatile void *ptr, unsigned long x, unsigned int size) -{ - switch (size) { - case 4: - return __xchg_u32(ptr, x); - case 8: - return __xchg_u64(ptr, x); - } - __xchg_called_with_bad_pointer(); - return x; -} - -#define xchg(ptr,x) \ - ({ \ - __typeof__(*(ptr)) _x_ = (x); \ - (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, sizeof(*(ptr))); \ - }) - -#define tas(ptr) (xchg((ptr),1)) - -#define __HAVE_ARCH_CMPXCHG 1 - -static __inline__ unsigned long -__cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new) -{ - unsigned int prev; - - __asm__ __volatile__ ( - EIEIO_ON_SMP -"1: lwarx %0,0,%2 # __cmpxchg_u32\n\ - cmpw 0,%0,%3\n\ - bne- 2f\n\ - stwcx. %4,0,%2\n\ - bne- 1b" - ISYNC_ON_SMP - "\n\ -2:" - : "=&r" (prev), "=m" (*p) - : "r" (p), "r" (old), "r" (new), "m" (*p) - : "cc", "memory"); - - return prev; -} - -static __inline__ unsigned long -__cmpxchg_u64(volatile unsigned long *p, unsigned long old, unsigned long new) -{ - unsigned long prev; - - __asm__ __volatile__ ( - EIEIO_ON_SMP -"1: ldarx %0,0,%2 # __cmpxchg_u64\n\ - cmpd 0,%0,%3\n\ - bne- 2f\n\ - stdcx. %4,0,%2\n\ - bne- 1b" - ISYNC_ON_SMP - "\n\ -2:" - : "=&r" (prev), "=m" (*p) - : "r" (p), "r" (old), "r" (new), "m" (*p) - : "cc", "memory"); - - return prev; -} - -/* This function doesn't exist, so you'll get a linker error - if something tries to do an invalid cmpxchg(). */ -extern void __cmpxchg_called_with_bad_pointer(void); - -static __inline__ unsigned long -__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, - unsigned int size) -{ - switch (size) { - case 4: - return __cmpxchg_u32(ptr, old, new); - case 8: - return __cmpxchg_u64(ptr, old, new); - } - __cmpxchg_called_with_bad_pointer(); - return old; -} - -#define cmpxchg(ptr,o,n)\ - ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\ - (unsigned long)(n),sizeof(*(ptr)))) - -/* - * We handle most unaligned accesses in hardware. On the other hand - * unaligned DMA can be very expensive on some ppc64 IO chips (it does - * powers of 2 writes until it reaches sufficient alignment). - * - * Based on this we disable the IP header alignment in network drivers. - */ -#define NET_IP_ALIGN 0 - -#define arch_align_stack(x) (x) - -extern unsigned long reloc_offset(void); - -#endif /* __KERNEL__ */ -#endif |