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linux-sg2042
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Merge HEAD from master.kernel.org:/pub/scm/linux/kernel/git/paulus/ppc64-2.6

This commit is contained in:
Linus Torvalds 2005-08-29 17:11:29 -07:00
parent 8f3d17fb7b c594adad56
commit 40193713df
73 changed files with 2245 additions and 2061 deletions
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203
arch/ppc/boot/utils/addRamDisk.c
View File

@ -1,203 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#define ElfHeaderSize (64 * 1024)
#define ElfPages (ElfHeaderSize / 4096)
#define KERNELBASE (0xc0000000)
void get4k(FILE *file, char *buf )
{
unsigned j;
unsigned num = fread(buf, 1, 4096, file);
for ( j=num; j<4096; ++j )
buf[j] = 0;
}
void put4k(FILE *file, char *buf )
{
fwrite(buf, 1, 4096, file);
}
void death(const char *msg, FILE *fdesc, const char *fname)
{
printf(msg);
fclose(fdesc);
unlink(fname);
exit(1);
}
int main(int argc, char **argv)
{
char inbuf[4096];
FILE *ramDisk = NULL;
FILE *inputVmlinux = NULL;
FILE *outputVmlinux = NULL;
unsigned i = 0;
u_int32_t ramFileLen = 0;
u_int32_t ramLen = 0;
u_int32_t roundR = 0;
u_int32_t kernelLen = 0;
u_int32_t actualKernelLen = 0;
u_int32_t round = 0;
u_int32_t roundedKernelLen = 0;
u_int32_t ramStartOffs = 0;
u_int32_t ramPages = 0;
u_int32_t roundedKernelPages = 0;
u_int32_t hvReleaseData = 0;
u_int32_t eyeCatcher = 0xc8a5d9c4;
u_int32_t naca = 0;
u_int32_t xRamDisk = 0;
u_int32_t xRamDiskSize = 0;
if ( argc < 2 ) {
printf("Name of RAM disk file missing.\n");
exit(1);
}
if ( argc < 3 ) {
printf("Name of vmlinux file missing.\n");
exit(1);
}
if ( argc < 4 ) {
printf("Name of vmlinux output file missing.\n");
exit(1);
}
ramDisk = fopen(argv[1], "r");
if ( ! ramDisk ) {
printf("RAM disk file \"%s\" failed to open.\n", argv[1]);
exit(1);
}
inputVmlinux = fopen(argv[2], "r");
if ( ! inputVmlinux ) {
printf("vmlinux file \"%s\" failed to open.\n", argv[2]);
exit(1);
}
outputVmlinux = fopen(argv[3], "w+");
if ( ! outputVmlinux ) {
printf("output vmlinux file \"%s\" failed to open.\n", argv[3]);
exit(1);
}
fseek(ramDisk, 0, SEEK_END);
ramFileLen = ftell(ramDisk);
fseek(ramDisk, 0, SEEK_SET);
printf("%s file size = %d\n", argv[1], ramFileLen);
ramLen = ramFileLen;
roundR = 4096 - (ramLen % 4096);
if ( roundR ) {
printf("Rounding RAM disk file up to a multiple of 4096, adding %d\n", roundR);
ramLen += roundR;
}
printf("Rounded RAM disk size is %d\n", ramLen);
fseek(inputVmlinux, 0, SEEK_END);
kernelLen = ftell(inputVmlinux);
fseek(inputVmlinux, 0, SEEK_SET);
printf("kernel file size = %d\n", kernelLen);
if ( kernelLen == 0 ) {
printf("You must have a linux kernel specified as argv[2]\n");
exit(1);
}
actualKernelLen = kernelLen - ElfHeaderSize;
printf("actual kernel length (minus ELF header) = %d\n", actualKernelLen);
round = actualKernelLen % 4096;
roundedKernelLen = actualKernelLen;
if ( round )
roundedKernelLen += (4096 - round);
printf("actual kernel length rounded up to a 4k multiple = %d\n", roundedKernelLen);
ramStartOffs = roundedKernelLen;
ramPages = ramLen / 4096;
printf("RAM disk pages to copy = %d\n", ramPages);
// Copy 64K ELF header
for (i=0; i<(ElfPages); ++i) {
get4k( inputVmlinux, inbuf );
put4k( outputVmlinux, inbuf );
}
roundedKernelPages = roundedKernelLen / 4096;
fseek(inputVmlinux, ElfHeaderSize, SEEK_SET);
for ( i=0; i<roundedKernelPages; ++i ) {
get4k( inputVmlinux, inbuf );
put4k( outputVmlinux, inbuf );
}
for ( i=0; i<ramPages; ++i ) {
get4k( ramDisk, inbuf );
put4k( outputVmlinux, inbuf );
}
/* Close the input files */
fclose(ramDisk);
fclose(inputVmlinux);
/* And flush the written output file */
fflush(outputVmlinux);
/* fseek to the hvReleaseData pointer */
fseek(outputVmlinux, ElfHeaderSize + 0x24, SEEK_SET);
if (fread(&hvReleaseData, 4, 1, outputVmlinux) != 1) {
death("Could not read hvReleaseData pointer\n", outputVmlinux, argv[3]);
}
hvReleaseData = ntohl(hvReleaseData); /* Convert to native int */
printf("hvReleaseData is at %08x\n", hvReleaseData);
/* fseek to the hvReleaseData */
fseek(outputVmlinux, ElfHeaderSize + hvReleaseData, SEEK_SET);
if (fread(inbuf, 0x40, 1, outputVmlinux) != 1) {
death("Could not read hvReleaseData\n", outputVmlinux, argv[3]);
}
/* Check hvReleaseData sanity */
if (memcmp(inbuf, &eyeCatcher, 4) != 0) {
death("hvReleaseData is invalid\n", outputVmlinux, argv[3]);
}
/* Get the naca pointer */
naca = ntohl(*((u_int32_t *) &inbuf[0x0c])) - KERNELBASE;
printf("naca is at %08x\n", naca);
/* fseek to the naca */
fseek(outputVmlinux, ElfHeaderSize + naca, SEEK_SET);
if (fread(inbuf, 0x18, 1, outputVmlinux) != 1) {
death("Could not read naca\n", outputVmlinux, argv[3]);
}
xRamDisk = ntohl(*((u_int32_t *) &inbuf[0x0c]));
xRamDiskSize = ntohl(*((u_int32_t *) &inbuf[0x14]));
/* Make sure a RAM disk isn't already present */
if ((xRamDisk != 0) || (xRamDiskSize != 0)) {
death("RAM disk is already attached to this kernel\n", outputVmlinux, argv[3]);
}
/* Fill in the values */
*((u_int32_t *) &inbuf[0x0c]) = htonl(ramStartOffs);
*((u_int32_t *) &inbuf[0x14]) = htonl(ramPages);
/* Write out the new naca */
fflush(outputVmlinux);
fseek(outputVmlinux, ElfHeaderSize + naca, SEEK_SET);
if (fwrite(inbuf, 0x18, 1, outputVmlinux) != 1) {
death("Could not write naca\n", outputVmlinux, argv[3]);
}
printf("RAM Disk of 0x%x pages size is attached to the kernel at offset 0x%08x\n",
ramPages, ramStartOffs);
/* Done */
fclose(outputVmlinux);
/* Set permission to executable */
chmod(argv[3], S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH);
return 0;
}

74
arch/ppc64/Kconfig
View File

@ -302,12 +302,6 @@ config GENERIC_HARDIRQS
bool
default y
config MSCHUNKS
bool
depends on PPC_ISERIES
default y
config PPC_RTAS
bool
depends on PPC_PSERIES || PPC_BPA
@ -350,13 +344,46 @@ config SECCOMP
If unsure, say Y. Only embedded should say N here.
source "fs/Kconfig.binfmt"
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs"
depends on SMP && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
select HOTPLUG
---help---
Say Y here to be able to turn CPUs off and on.
Say N if you are unsure.
config PROC_DEVICETREE
bool "Support for Open Firmware device tree in /proc"
depends on !PPC_ISERIES
help
This option adds a device-tree directory under /proc which contains
an image of the device tree that the kernel copies from Open
Firmware. If unsure, say Y here.
config CMDLINE_BOOL
bool "Default bootloader kernel arguments"
depends on !PPC_ISERIES
config CMDLINE
string "Initial kernel command string"
depends on CMDLINE_BOOL
default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
help
On some platforms, there is currently no way for the boot loader to
pass arguments to the kernel. For these platforms, you can supply
some command-line options at build time by entering them here. In
most cases you will need to specify the root device here.
endmenu
config ISA_DMA_API
bool
default y
menu "General setup"
menu "Bus Options"
config ISA
bool
@ -389,45 +416,12 @@ config PCI_DOMAINS
bool
default PCI
source "fs/Kconfig.binfmt"
source "drivers/pci/Kconfig"
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs"
depends on SMP && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
select HOTPLUG
---help---
Say Y here to be able to turn CPUs off and on.
Say N if you are unsure.
source "drivers/pcmcia/Kconfig"
source "drivers/pci/hotplug/Kconfig"
config PROC_DEVICETREE
bool "Support for Open Firmware device tree in /proc"
depends on !PPC_ISERIES
help
This option adds a device-tree directory under /proc which contains
an image of the device tree that the kernel copies from Open
Firmware. If unsure, say Y here.
config CMDLINE_BOOL
bool "Default bootloader kernel arguments"
depends on !PPC_ISERIES
config CMDLINE
string "Initial kernel command string"
depends on CMDLINE_BOOL
default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
help
On some platforms, there is currently no way for the boot loader to
pass arguments to the kernel. For these platforms, you can supply
some command-line options at build time by entering them here. In
most cases you will need to specify the root device here.
endmenu
source "net/Kconfig"

4
arch/ppc64/boot/Makefile
View File

@ -22,8 +22,8 @@
HOSTCC := gcc
BOOTCFLAGS := $(HOSTCFLAGS) $(LINUXINCLUDE) -fno-builtin
BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional
BOOTCFLAGS := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem $(shell $(CROSS32CC) -print-file-name=include)
BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
BOOTLFLAGS := -Ttext 0x00400000 -e _start -T $(srctree)/$(src)/zImage.lds
OBJCOPYFLAGS := contents,alloc,load,readonly,data

4
arch/ppc64/boot/addnote.c
View File

@ -157,7 +157,7 @@ main(int ac, char **av)
PUT_32BE(ns, strlen(arch) + 1);
PUT_32BE(ns + 4, N_DESCR * 4);
PUT_32BE(ns + 8, 0x1275);
strcpy(&buf[ns + 12], arch);
strcpy((char *) &buf[ns + 12], arch);
ns += 12 + strlen(arch) + 1;
for (i = 0; i < N_DESCR; ++i, ns += 4)
PUT_32BE(ns, descr[i]);
@ -172,7 +172,7 @@ main(int ac, char **av)
PUT_32BE(ns, strlen(rpaname) + 1);
PUT_32BE(ns + 4, sizeof(rpanote));
PUT_32BE(ns + 8, 0x12759999);
strcpy(&buf[ns + 12], rpaname);
strcpy((char *) &buf[ns + 12], rpaname);
ns += 12 + ROUNDUP(strlen(rpaname) + 1);
for (i = 0; i < N_RPA_DESCR; ++i, ns += 4)
PUT_32BE(ns, rpanote[i]);

2
arch/ppc64/boot/crt0.S
View File

@ -9,7 +9,7 @@
* NOTE: this code runs in 32 bit mode and is packaged as ELF32.
*/
#include <asm/ppc_asm.h>
#include "ppc_asm.h"
.text
.globl _start

2
arch/ppc64/boot/div64.S
View File

@ -13,7 +13,7 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <asm/ppc_asm.h>
#include "ppc_asm.h"
.globl __div64_32
__div64_32:

149
arch/ppc64/boot/elf.h Normal file
View File

@ -0,0 +1,149 @@
#ifndef _PPC_BOOT_ELF_H_
#define _PPC_BOOT_ELF_H_
/* 32-bit ELF base types. */
typedef unsigned int Elf32_Addr;
typedef unsigned short Elf32_Half;
typedef unsigned int Elf32_Off;
typedef signed int Elf32_Sword;
typedef unsigned int Elf32_Word;
/* 64-bit ELF base types. */
typedef unsigned long long Elf64_Addr;
typedef unsigned short Elf64_Half;
typedef signed short Elf64_SHalf;
typedef unsigned long long Elf64_Off;
typedef signed int Elf64_Sword;
typedef unsigned int Elf64_Word;
typedef unsigned long long Elf64_Xword;
typedef signed long long Elf64_Sxword;
/* These constants are for the segment types stored in the image headers */
#define PT_NULL 0
#define PT_LOAD 1
#define PT_DYNAMIC 2
#define PT_INTERP 3
#define PT_NOTE 4
#define PT_SHLIB 5
#define PT_PHDR 6
#define PT_TLS 7 /* Thread local storage segment */
#define PT_LOOS 0x60000000 /* OS-specific */
#define PT_HIOS 0x6fffffff /* OS-specific */
#define PT_LOPROC 0x70000000
#define PT_HIPROC 0x7fffffff
#define PT_GNU_EH_FRAME 0x6474e550
#define PT_GNU_STACK (PT_LOOS + 0x474e551)
/* These constants define the different elf file types */
#define ET_NONE 0
#define ET_REL 1
#define ET_EXEC 2
#define ET_DYN 3
#define ET_CORE 4
#define ET_LOPROC 0xff00
#define ET_HIPROC 0xffff
/* These constants define the various ELF target machines */
#define EM_NONE 0
#define EM_PPC 20 /* PowerPC */
#define EM_PPC64 21 /* PowerPC64 */
#define EI_NIDENT 16
typedef struct elf32_hdr {
unsigned char e_ident[EI_NIDENT];
Elf32_Half e_type;
Elf32_Half e_machine;
Elf32_Word e_version;
Elf32_Addr e_entry; /* Entry point */
Elf32_Off e_phoff;
Elf32_Off e_shoff;
Elf32_Word e_flags;
Elf32_Half e_ehsize;
Elf32_Half e_phentsize;
Elf32_Half e_phnum;
Elf32_Half e_shentsize;
Elf32_Half e_shnum;
Elf32_Half e_shstrndx;
} Elf32_Ehdr;
typedef struct elf64_hdr {
unsigned char e_ident[16]; /* ELF "magic number" */
Elf64_Half e_type;
Elf64_Half e_machine;
Elf64_Word e_version;
Elf64_Addr e_entry; /* Entry point virtual address */
Elf64_Off e_phoff; /* Program header table file offset */
Elf64_Off e_shoff; /* Section header table file offset */
Elf64_Word e_flags;
Elf64_Half e_ehsize;
Elf64_Half e_phentsize;
Elf64_Half e_phnum;
Elf64_Half e_shentsize;
Elf64_Half e_shnum;
Elf64_Half e_shstrndx;
} Elf64_Ehdr;
/* These constants define the permissions on sections in the program
header, p_flags. */
#define PF_R 0x4
#define PF_W 0x2
#define PF_X 0x1
typedef struct elf32_phdr {
Elf32_Word p_type;
Elf32_Off p_offset;
Elf32_Addr p_vaddr;
Elf32_Addr p_paddr;
Elf32_Word p_filesz;
Elf32_Word p_memsz;
Elf32_Word p_flags;
Elf32_Word p_align;
} Elf32_Phdr;
typedef struct elf64_phdr {
Elf64_Word p_type;
Elf64_Word p_flags;
Elf64_Off p_offset; /* Segment file offset */
Elf64_Addr p_vaddr; /* Segment virtual address */
Elf64_Addr p_paddr; /* Segment physical address */
Elf64_Xword p_filesz; /* Segment size in file */
Elf64_Xword p_memsz; /* Segment size in memory */
Elf64_Xword p_align; /* Segment alignment, file & memory */
} Elf64_Phdr;
#define EI_MAG0 0 /* e_ident[] indexes */
#define EI_MAG1 1
#define EI_MAG2 2
#define EI_MAG3 3
#define EI_CLASS 4
#define EI_DATA 5
#define EI_VERSION 6
#define EI_OSABI 7
#define EI_PAD 8
#define ELFMAG0 0x7f /* EI_MAG */
#define ELFMAG1 'E'
#define ELFMAG2 'L'
#define ELFMAG3 'F'
#define ELFMAG "\177ELF"
#define SELFMAG 4
#define ELFCLASSNONE 0 /* EI_CLASS */
#define ELFCLASS32 1
#define ELFCLASS64 2
#define ELFCLASSNUM 3
#define ELFDATANONE 0 /* e_ident[EI_DATA] */
#define ELFDATA2LSB 1
#define ELFDATA2MSB 2
#define EV_NONE 0 /* e_version, EI_VERSION */
#define EV_CURRENT 1
#define EV_NUM 2
#define ELFOSABI_NONE 0
#define ELFOSABI_LINUX 3
#endif /* _PPC_BOOT_ELF_H_ */

51
arch/ppc64/boot/main.c
View File

@ -8,36 +8,28 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include "ppc32-types.h"
#include <stdarg.h>
#include <stddef.h>
#include "elf.h"
#include "page.h"
#include "string.h"
#include "stdio.h"
#include "prom.h"
#include "zlib.h"
#include <linux/elf.h>
#include <linux/string.h>
#include <asm/processor.h>
#include <asm/page.h>
extern void *finddevice(const char *);
extern int getprop(void *, const char *, void *, int);
extern void printf(const char *fmt, ...);
extern int sprintf(char *buf, const char *fmt, ...);
void gunzip(void *, int, unsigned char *, int *);
void *claim(unsigned int, unsigned int, unsigned int);
void flush_cache(void *, unsigned long);
void pause(void);
extern void exit(void);
static void gunzip(void *, int, unsigned char *, int *);
extern void flush_cache(void *, unsigned long);
unsigned long strlen(const char *s);
void *memmove(void *dest, const void *src, unsigned long n);
void *memcpy(void *dest, const void *src, unsigned long n);
/* Value picked to match that used by yaboot */
#define PROG_START 0x01400000
#define RAM_END (256<<20) // Fixme: use OF */
char *avail_ram;
char *begin_avail, *end_avail;
char *avail_high;
unsigned int heap_use;
unsigned int heap_max;
static char *avail_ram;
static char *begin_avail, *end_avail;
static char *avail_high;
static unsigned int heap_use;
static unsigned int heap_max;
extern char _start[];
extern char _vmlinux_start[];
@ -52,9 +44,9 @@ struct addr_range {
unsigned long size;
unsigned long memsize;
};
struct addr_range vmlinux = {0, 0, 0};
struct addr_range vmlinuz = {0, 0, 0};
struct addr_range initrd = {0, 0, 0};
static struct addr_range vmlinux = {0, 0, 0};
static struct addr_range vmlinuz = {0, 0, 0};
static struct addr_range initrd = {0, 0, 0};
static char scratch[128<<10]; /* 128kB of scratch space for gunzip */
@ -64,13 +56,6 @@ typedef void (*kernel_entry_t)( unsigned long,
void *);
int (*prom)(void *);
void *chosen_handle;
void *stdin;
void *stdout;
void *stderr;
#undef DEBUG
static unsigned long claim_base = PROG_START;
@ -277,7 +262,7 @@ void zfree(void *x, void *addr, unsigned nb)
#define DEFLATED 8
void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
static void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
{
z_stream s;
int r, i, flags;

34
arch/ppc64/boot/page.h Normal file
View File

@ -0,0 +1,34 @@
#ifndef _PPC_BOOT_PAGE_H
#define _PPC_BOOT_PAGE_H
/*
* Copyright (C) 2001 PPC64 Team, 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.
*/
#ifdef __ASSEMBLY__
#define ASM_CONST(x) x
#else
#define __ASM_CONST(x) x##UL
#define ASM_CONST(x) __ASM_CONST(x)
#endif
/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12
#define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
/* align addr on a size boundary - adjust address up/down if needed */
#define _ALIGN_UP(addr,size) (((addr)+((size)-1))&(~((size)-1)))
#define _ALIGN_DOWN(addr,size) ((addr)&(~((size)-1)))
/* align addr on a size boundary - adjust address up if needed */
#define _ALIGN(addr,size) _ALIGN_UP(addr,size)
/* to align the pointer to the (next) page boundary */
#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE)
#endif /* _PPC_BOOT_PAGE_H */

36
arch/ppc64/boot/ppc32-types.h
View File

@ -1,36 +0,0 @@
#ifndef _PPC64_TYPES_H
#define _PPC64_TYPES_H
typedef __signed__ char __s8;
typedef unsigned char __u8;
typedef __signed__ short __s16;
typedef unsigned short __u16;
typedef __signed__ int __s32;
typedef unsigned int __u32;
typedef __signed__ long long __s64;
typedef unsigned long long __u64;
typedef signed char s8;
typedef unsigned char u8;
typedef signed short s16;
typedef unsigned short u16;
typedef signed int s32;
typedef unsigned int u32;
typedef signed long long s64;
typedef unsigned long long u64;
typedef struct {
__u32 u[4];
} __attribute((aligned(16))) __vector128;
#define BITS_PER_LONG 32
typedef __vector128 vector128;
#endif /* _PPC64_TYPES_H */

62
arch/ppc64/boot/ppc_asm.h Normal file
View File

@ -0,0 +1,62 @@
#ifndef _PPC64_PPC_ASM_H
#define _PPC64_PPC_ASM_H
/*
*
* Definitions used by various bits of low-level assembly code on PowerPC.
*
* Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan.
*
* 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.
*/
/* Condition Register Bit Fields */
#define cr0 0
#define cr1 1
#define cr2 2
#define cr3 3
#define cr4 4
#define cr5 5
#define cr6 6
#define cr7 7
/* General Purpose Registers (GPRs) */
#define r0 0
#define r1 1
#define r2 2
#define r3 3
#define r4 4
#define r5 5
#define r6 6
#define r7 7
#define r8 8
#define r9 9
#define r10 10
#define r11 11
#define r12 12
#define r13 13
#define r14 14
#define r15 15
#define r16 16
#define r17 17
#define r18 18
#define r19 19
#define r20 20
#define r21 21
#define r22 22
#define r23 23
#define r24 24
#define r25 25
#define r26 26
#define r27 27
#define r28 28
#define r29 29
#define r30 30
#define r31 31
#endif /* _PPC64_PPC_ASM_H */

196
arch/ppc64/boot/prom.c
View File

@ -7,43 +7,19 @@
* 2 of the License, or (at your option) any later version.
*/
#include <stdarg.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/ctype.h>
extern __u32 __div64_32(unsigned long long *dividend, __u32 divisor);
/* The unnecessary pointer compare is there
* to check for type safety (n must be 64bit)
*/
# define do_div(n,base) ({ \
__u32 __base = (base); \
__u32 __rem; \
(void)(((typeof((n)) *)0) == ((unsigned long long *)0)); \
if (((n) >> 32) == 0) { \
__rem = (__u32)(n) % __base; \
(n) = (__u32)(n) / __base; \
} else \
__rem = __div64_32(&(n), __base); \
__rem; \
})
#include <stddef.h>
#include "string.h"
#include "stdio.h"
#include "prom.h"
int (*prom)(void *);
void *chosen_handle;
void *stdin;
void *stdout;
void *stderr;
void exit(void);
void *finddevice(const char *name);
int getprop(void *phandle, const char *name, void *buf, int buflen);
void chrpboot(int a1, int a2, void *prom); /* in main.c */
int printf(char *fmt, ...);
/* there is no convenient header to get this from... -- paulus */
extern unsigned long strlen(const char *);
int
write(void *handle, void *ptr, int nb)
@ -210,107 +186,6 @@ fputs(char *str, void *f)
return write(f, str, n) == n? 0: -1;
}
int
readchar(void)
{
char ch;
for (;;) {
switch (read(stdin, &ch, 1)) {
case 1:
return ch;
case -1:
printf("read(stdin) returned -1\r\n");
return -1;
}
}
}
static char line[256];
static char *lineptr;
static int lineleft;
int
getchar(void)
{
int c;
if (lineleft == 0) {
lineptr = line;
for (;;) {
c = readchar();
if (c == -1 || c == 4)
break;
if (c == '\r' || c == '\n') {
*lineptr++ = '\n';
putchar('\n');
break;
}
switch (c) {
case 0177:
case '\b':
if (lineptr > line) {
putchar('\b');
putchar(' ');
putchar('\b');
--lineptr;
}
break;
case 'U' & 0x1F:
while (lineptr > line) {
putchar('\b');
putchar(' ');
putchar('\b');
--lineptr;
}
break;
default:
if (lineptr >= &line[sizeof(line) - 1])
putchar('\a');
else {
putchar(c);
*lineptr++ = c;
}
}
}
lineleft = lineptr - line;
lineptr = line;
}
if (lineleft == 0)
return -1;
--lineleft;
return *lineptr++;
}
/* String functions lifted from lib/vsprintf.c and lib/ctype.c */
unsigned char _ctype[] = {
_C,_C,_C,_C,_C,_C,_C,_C, /* 0-7 */
_C,_C|_S,_C|_S,_C|_S,_C|_S,_C|_S,_C,_C, /* 8-15 */
_C,_C,_C,_C,_C,_C,_C,_C, /* 16-23 */
_C,_C,_C,_C,_C,_C,_C,_C, /* 24-31 */
_S|_SP,_P,_P,_P,_P,_P,_P,_P, /* 32-39 */
_P,_P,_P,_P,_P,_P,_P,_P, /* 40-47 */
_D,_D,_D,_D,_D,_D,_D,_D, /* 48-55 */
_D,_D,_P,_P,_P,_P,_P,_P, /* 56-63 */
_P,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U, /* 64-71 */
_U,_U,_U,_U,_U,_U,_U,_U, /* 72-79 */
_U,_U,_U,_U,_U,_U,_U,_U, /* 80-87 */
_U,_U,_U,_P,_P,_P,_P,_P, /* 88-95 */
_P,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L, /* 96-103 */
_L,_L,_L,_L,_L,_L,_L,_L, /* 104-111 */
_L,_L,_L,_L,_L,_L,_L,_L, /* 112-119 */
_L,_L,_L,_P,_P,_P,_P,_C, /* 120-127 */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 128-143 */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 144-159 */
_S|_SP,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P, /* 160-175 */
_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P, /* 176-191 */
_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U, /* 192-207 */
_U,_U,_U,_U,_U,_U,_U,_P,_U,_U,_U,_U,_U,_U,_U,_L, /* 208-223 */
_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L, /* 224-239 */
_L,_L,_L,_L,_L,_L,_L,_P,_L,_L,_L,_L,_L,_L,_L,_L}; /* 240-255 */
size_t strnlen(const char * s, size_t count)
{
const char *sc;
@ -320,44 +195,30 @@ size_t strnlen(const char * s, size_t count)
return sc - s;
}
unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base)
{
unsigned long result = 0,value;
extern unsigned int __div64_32(unsigned long long *dividend,
unsigned int divisor);
if (!base) {
base = 10;
if (*cp == '0') {
base = 8;
cp++;
if ((*cp == 'x') && isxdigit(cp[1])) {
cp++;
base = 16;
}
}
}
while (isxdigit(*cp) &&
(value = isdigit(*cp) ? *cp-'0' : toupper(*cp)-'A'+10) < base) {
result = result*base + value;
cp++;
}
if (endp)
*endp = (char *)cp;
return result;
}
long simple_strtol(const char *cp,char **endp,unsigned int base)
{
if(*cp=='-')
return -simple_strtoul(cp+1,endp,base);
return simple_strtoul(cp,endp,base);
}
/* The unnecessary pointer compare is there
* to check for type safety (n must be 64bit)
*/
# define do_div(n,base) ({ \
unsigned int __base = (base); \
unsigned int __rem; \
(void)(((typeof((n)) *)0) == ((unsigned long long *)0)); \
if (((n) >> 32) == 0) { \
__rem = (unsigned int)(n) % __base; \
(n) = (unsigned int)(n) / __base; \
} else \
__rem = __div64_32(&(n), __base); \
__rem; \
})
static int skip_atoi(const char **s)
{
int i=0;
int i, c;
while (isdigit(**s))
i = i*10 + *((*s)++) - '0';
for (i = 0; '0' <= (c = **s) && c <= '9'; ++*s)
i = i*10 + c - '0';
return i;
}
@ -436,9 +297,6 @@ static char * number(char * str, unsigned long long num, int base, int size, int
return str;
}
/* Forward decl. needed for IP address printing stuff... */
int sprintf(char * buf, const char *fmt, ...);
int vsprintf(char *buf, const char *fmt, va_list args)
{
int len;
@ -477,7 +335,7 @@ int vsprintf(char *buf, const char *fmt, va_list args)
/* get field width */
field_width = -1;
if (isdigit(*fmt))
if ('0' <= *fmt && *fmt <= '9')
field_width = skip_atoi(&fmt);
else if (*fmt == '*') {
++fmt;
@ -493,7 +351,7 @@ int vsprintf(char *buf, const char *fmt, va_list args)
precision = -1;
if (*fmt == '.') {
++fmt;
if (isdigit(*fmt))
if ('0' <= *fmt && *fmt <= '9')
precision = skip_atoi(&fmt);
else if (*fmt == '*') {
++fmt;
@ -628,7 +486,7 @@ int sprintf(char * buf, const char *fmt, ...)
static char sprint_buf[1024];
int
printf(char *fmt, ...)
printf(const char *fmt, ...)
{
va_list args;
int n;

18
arch/ppc64/boot/prom.h Normal file
View File

@ -0,0 +1,18 @@
#ifndef _PPC_BOOT_PROM_H_
#define _PPC_BOOT_PROM_H_
extern int (*prom) (void *);
extern void *chosen_handle;
extern void *stdin;
extern void *stdout;
extern void *stderr;
extern int write(void *handle, void *ptr, int nb);
extern int read(void *handle, void *ptr, int nb);
extern void exit(void);
extern void pause(void);
extern void *finddevice(const char *);
extern void *claim(unsigned long virt, unsigned long size, unsigned long align);
extern int getprop(void *phandle, const char *name, void *buf, int buflen);
#endif /* _PPC_BOOT_PROM_H_ */

16
arch/ppc64/boot/stdio.h Normal file
View File

@ -0,0 +1,16 @@
#ifndef _PPC_BOOT_STDIO_H_
#define _PPC_BOOT_STDIO_H_
extern int printf(const char *fmt, ...);
extern int sprintf(char *buf, const char *fmt, ...);
extern int vsprintf(char *buf, const char *fmt, va_list args);
extern int putc(int c, void *f);
extern int putchar(int c);
extern int getchar(void);
extern int fputs(char *str, void *f);
#endif /* _PPC_BOOT_STDIO_H_ */

2
arch/ppc64/boot/string.S
View File

@ -9,7 +9,7 @@
* NOTE: this code runs in 32 bit mode and is packaged as ELF32.
*/
#include <asm/ppc_asm.h>
#include "ppc_asm.h"
.text
.globl strcpy

16
arch/ppc64/boot/string.h Normal file
View File

@ -0,0 +1,16 @@
#ifndef _PPC_BOOT_STRING_H_
#define _PPC_BOOT_STRING_H_
extern char *strcpy(char *dest, const char *src);
extern char *strncpy(char *dest, const char *src, size_t n);
extern char *strcat(char *dest, const char *src);
extern int strcmp(const char *s1, const char *s2);
extern size_t strlen(const char *s);
extern size_t strnlen(const char *s, size_t count);
extern void *memset(void *s, int c, size_t n);
extern void *memmove(void *dest, const void *src, unsigned long n);
extern void *memcpy(void *dest, const void *src, unsigned long n);
extern int memcmp(const void *s1, const void *s2, size_t n);
#endif /* _PPC_BOOT_STRING_H_ */

2
arch/ppc64/boot/zlib.c
View File

@ -107,7 +107,7 @@ extern void *memcpy(void *, const void *, unsigned long);
/* Diagnostic functions */
#ifdef DEBUG_ZLIB
# include <stdio.h>
# include "stdio.h"
# ifndef verbose
# define verbose 0
# endif

1
arch/ppc64/configs/iSeries_defconfig
View File

@ -99,7 +99,6 @@ CONFIG_HZ_100=y
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
CONFIG_GENERIC_HARDIRQS=y
CONFIG_MSCHUNKS=y
CONFIG_LPARCFG=y
CONFIG_SECCOMP=y
CONFIG_ISA_DMA_API=y

37
arch/ppc64/kernel/LparData.c
View File

@ -51,6 +51,17 @@ struct HvReleaseData hvReleaseData = {
0xf4, 0x4b, 0xf6, 0xf4 },
};
/*
* The NACA. The first dword of the naca is required by the iSeries
* hypervisor to point to itVpdAreas. The hypervisor finds the NACA
* through the pointer in hvReleaseData.
*/
struct naca_struct naca = {
.xItVpdAreas = &itVpdAreas,
.xRamDisk = 0,
.xRamDiskSize = 0,
};
extern void system_reset_iSeries(void);
extern void machine_check_iSeries(void);
extern void data_access_iSeries(void);
@ -214,29 +225,3 @@ struct ItVpdAreas itVpdAreas = {
0,0
}
};
struct msChunks msChunks;
EXPORT_SYMBOL(msChunks);
/* Depending on whether this is called from iSeries or pSeries setup
* code, the location of the msChunks struct may or may not have
* to be reloc'd, so we force the caller to do that for us by passing
* in a pointer to the structure.
*/
unsigned long
msChunks_alloc(unsigned long mem, unsigned long num_chunks, unsigned long chunk_size)
{
unsigned long offset = reloc_offset();
struct msChunks *_msChunks = PTRRELOC(&msChunks);
_msChunks->num_chunks = num_chunks;
_msChunks->chunk_size = chunk_size;
_msChunks->chunk_shift = __ilog2(chunk_size);
_msChunks->chunk_mask = (1UL<<_msChunks->chunk_shift)-1;
mem = _ALIGN(mem, sizeof(msChunks_entry));
_msChunks->abs = (msChunks_entry *)(mem + offset);
mem += num_chunks * sizeof(msChunks_entry);
return mem;
}

7
arch/ppc64/kernel/Makefile
View File

@ -11,7 +11,7 @@ obj-y := setup.o entry.o traps.o irq.o idle.o dma.o \
udbg.o binfmt_elf32.o sys_ppc32.o ioctl32.o \
ptrace32.o signal32.o rtc.o init_task.o \
lmb.o cputable.o cpu_setup_power4.o idle_power4.o \
iommu.o sysfs.o vdso.o pmc.o
iommu.o sysfs.o vdso.o pmc.o firmware.o
obj-y += vdso32/ vdso64/
obj-$(CONFIG_PPC_OF) += of_device.o
@ -50,7 +50,10 @@ obj-$(CONFIG_LPARCFG) += lparcfg.o
obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o
obj-$(CONFIG_BOOTX_TEXT) += btext.o
obj-$(CONFIG_HVCS) += hvcserver.o
obj-$(CONFIG_IBMVIO) += vio.o
vio-obj-$(CONFIG_PPC_PSERIES) += pSeries_vio.o
vio-obj-$(CONFIG_PPC_ISERIES) += iSeries_vio.o
obj-$(CONFIG_IBMVIO) += vio.o $(vio-obj-y)
obj-$(CONFIG_XICS) += xics.o
obj-$(CONFIG_MPIC) += mpic.o

3
arch/ppc64/kernel/asm-offsets.c
View File

@ -94,7 +94,8 @@ int main(void)
DEFINE(PACASLBCACHEPTR, offsetof(struct paca_struct, slb_cache_ptr));
DEFINE(PACACONTEXTID, offsetof(struct paca_struct, context.id));
#ifdef CONFIG_HUGETLB_PAGE
DEFINE(PACAHTLBSEGS, offsetof(struct paca_struct, context.htlb_segs));
DEFINE(PACALOWHTLBAREAS, offsetof(struct paca_struct, context.low_htlb_areas));
DEFINE(PACAHIGHHTLBAREAS, offsetof(struct paca_struct, context.high_htlb_areas));
#endif /* CONFIG_HUGETLB_PAGE */
DEFINE(PACADEFAULTDECR, offsetof(struct paca_struct, default_decr));
DEFINE(PACA_EXGEN, offsetof(struct paca_struct, exgen));

40
arch/ppc64/kernel/cputable.c
View File

@ -5,7 +5,7 @@
*
* Modifications for ppc64:
* Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
*
*
* 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
@ -60,7 +60,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Power3+ */
.pvr_mask = 0xffff0000,
@ -73,7 +72,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Northstar */
.pvr_mask = 0xffff0000,
@ -86,7 +84,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Pulsar */
.pvr_mask = 0xffff0000,
@ -99,7 +96,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* I-star */
.pvr_mask = 0xffff0000,
@ -112,7 +108,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* S-star */
.pvr_mask = 0xffff0000,
@ -125,7 +120,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Power4 */
.pvr_mask = 0xffff0000,
@ -138,7 +132,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power4,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Power4+ */
.pvr_mask = 0xffff0000,
@ -151,7 +144,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power4,
.firmware_features = COMMON_PPC64_FW,
},
{ /* PPC970 */
.pvr_mask = 0xffff0000,
@ -166,7 +158,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_ppc970,
.firmware_features = COMMON_PPC64_FW,
},
{ /* PPC970FX */
.pvr_mask = 0xffff0000,
@ -181,7 +172,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_ppc970,
.firmware_features = COMMON_PPC64_FW,
},
{ /* PPC970MP */
.pvr_mask = 0xffff0000,
@ -196,7 +186,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_ppc970,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Power5 */
.pvr_mask = 0xffff0000,
@ -211,7 +200,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power4,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Power5 */
.pvr_mask = 0xffff0000,
@ -226,7 +214,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power4,
.firmware_features = COMMON_PPC64_FW,
},
{ /* BE DD1.x */
.pvr_mask = 0xffff0000,
@ -241,7 +228,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_be,
.firmware_features = COMMON_PPC64_FW,
},
{ /* default match */
.pvr_mask = 0x00000000,
@ -254,29 +240,5 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power4,
.firmware_features = COMMON_PPC64_FW,
}
};
firmware_feature_t firmware_features_table[FIRMWARE_MAX_FEATURES] = {
{FW_FEATURE_PFT, "hcall-pft"},
{FW_FEATURE_TCE, "hcall-tce"},
{FW_FEATURE_SPRG0, "hcall-sprg0"},
{FW_FEATURE_DABR, "hcall-dabr"},
{FW_FEATURE_COPY, "hcall-copy"},
{FW_FEATURE_ASR, "hcall-asr"},
{FW_FEATURE_DEBUG, "hcall-debug"},
{FW_FEATURE_PERF, "hcall-perf"},
{FW_FEATURE_DUMP, "hcall-dump"},
{FW_FEATURE_INTERRUPT, "hcall-interrupt"},
{FW_FEATURE_MIGRATE, "hcall-migrate"},
{FW_FEATURE_PERFMON, "hcall-perfmon"},
{FW_FEATURE_CRQ, "hcall-crq"},
{FW_FEATURE_VIO, "hcall-vio"},
{FW_FEATURE_RDMA, "hcall-rdma"},
{FW_FEATURE_LLAN, "hcall-lLAN"},
{FW_FEATURE_BULK, "hcall-bulk"},
{FW_FEATURE_XDABR, "hcall-xdabr"},
{FW_FEATURE_MULTITCE, "hcall-multi-tce"},
{FW_FEATURE_SPLPAR, "hcall-splpar"},
};

47
arch/ppc64/kernel/firmware.c Normal file
View File

@ -0,0 +1,47 @@
/*
* arch/ppc64/kernel/firmware.c
*
* Extracted from cputable.c
*
* Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
*
* Modifications for ppc64:
* Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
* Copyright (C) 2005 Stephen Rothwell, IBM Corporation
*
* 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 <asm/firmware.h>
unsigned long ppc64_firmware_features;
#ifdef CONFIG_PPC_PSERIES
firmware_feature_t firmware_features_table[FIRMWARE_MAX_FEATURES] = {
{FW_FEATURE_PFT, "hcall-pft"},
{FW_FEATURE_TCE, "hcall-tce"},
{FW_FEATURE_SPRG0, "hcall-sprg0"},
{FW_FEATURE_DABR, "hcall-dabr"},
{FW_FEATURE_COPY, "hcall-copy"},
{FW_FEATURE_ASR, "hcall-asr"},
{FW_FEATURE_DEBUG, "hcall-debug"},
{FW_FEATURE_PERF, "hcall-perf"},
{FW_FEATURE_DUMP, "hcall-dump"},
{FW_FEATURE_INTERRUPT, "hcall-interrupt"},
{FW_FEATURE_MIGRATE, "hcall-migrate"},
{FW_FEATURE_PERFMON, "hcall-perfmon"},
{FW_FEATURE_CRQ, "hcall-crq"},
{FW_FEATURE_VIO, "hcall-vio"},
{FW_FEATURE_RDMA, "hcall-rdma"},
{FW_FEATURE_LLAN, "hcall-lLAN"},
{FW_FEATURE_BULK, "hcall-bulk"},
{FW_FEATURE_XDABR, "hcall-xdabr"},
{FW_FEATURE_MULTITCE, "hcall-multi-tce"},
{FW_FEATURE_SPLPAR, "hcall-splpar"},
};
#endif

513
arch/ppc64/kernel/head.S
View File

@ -23,14 +23,11 @@
* 2 of the License, or (at your option) any later version.
*/
#define SECONDARY_PROCESSORS
#include <linux/config.h>
#include <linux/threads.h>
#include <asm/processor.h>
#include <asm/page.h>
#include <asm/mmu.h>
#include <asm/naca.h>
#include <asm/systemcfg.h>
#include <asm/ppc_asm.h>
#include <asm/offsets.h>
@ -44,19 +41,14 @@
#define DO_SOFT_DISABLE
#endif
/*
* hcall interface to pSeries LPAR
*/
#define H_SET_ASR 0x30
/*
* We layout physical memory as follows:
* 0x0000 - 0x00ff : Secondary processor spin code
* 0x0100 - 0x2fff : pSeries Interrupt prologs
* 0x3000 - 0x3fff : Interrupt support
* 0x4000 - 0x4fff : NACA
* 0x6000 : iSeries and common interrupt prologs
* 0x9000 - 0x9fff : Initial segment table
* 0x3000 - 0x5fff : interrupt support, iSeries and common interrupt prologs
* 0x6000 - 0x6fff : Initial (CPU0) segment table
* 0x7000 - 0x7fff : FWNMI data area
* 0x8000 - : Early init and support code
*/
/*
@ -94,6 +86,7 @@ END_FTR_SECTION(0, 1)
/* Catch branch to 0 in real mode */
trap
#ifdef CONFIG_PPC_ISERIES
/*
* At offset 0x20, there is a pointer to iSeries LPAR data.
@ -103,12 +96,12 @@ END_FTR_SECTION(0, 1)
.llong hvReleaseData-KERNELBASE
/*
* At offset 0x28 and 0x30 are offsets to the msChunks
* At offset 0x28 and 0x30 are offsets to the mschunks_map
* array (used by the iSeries LPAR debugger to do translation
* between physical addresses and absolute addresses) and
* to the pidhash table (also used by the debugger)
*/
.llong msChunks-KERNELBASE
.llong mschunks_map-KERNELBASE
.llong 0 /* pidhash-KERNELBASE SFRXXX */
/* Offset 0x38 - Pointer to start of embedded System.map */
@ -120,7 +113,7 @@ embedded_sysmap_start:
embedded_sysmap_end:
.llong 0
#else /* CONFIG_PPC_ISERIES */
#endif /* CONFIG_PPC_ISERIES */
/* Secondary processors spin on this value until it goes to 1. */
.globl __secondary_hold_spinloop
@ -155,7 +148,7 @@ _GLOBAL(__secondary_hold)
std r24,__secondary_hold_acknowledge@l(0)
sync
/* All secondary cpu's wait here until told to start. */
/* All secondary cpus wait here until told to start. */
100: ld r4,__secondary_hold_spinloop@l(0)
cmpdi 0,r4,1
bne 100b
@ -170,7 +163,6 @@ _GLOBAL(__secondary_hold)
BUG_OPCODE
#endif
#endif
#endif
/* This value is used to mark exception frames on the stack. */
.section ".toc","aw"
@ -502,33 +494,37 @@ system_call_pSeries:
STD_EXCEPTION_PSERIES(0x1300, instruction_breakpoint)
STD_EXCEPTION_PSERIES(0x1700, altivec_assist)
/* moved from 0xf00 */
STD_EXCEPTION_PSERIES(0x3000, performance_monitor)
. = 0x3000
. = 0x3100
/*** pSeries interrupt support ***/
/* moved from 0xf00 */
STD_EXCEPTION_PSERIES(., performance_monitor)
.align 7
_GLOBAL(do_stab_bolted_pSeries)
mtcrf 0x80,r12
mfspr r12,SPRG2
EXCEPTION_PROLOG_PSERIES(PACA_EXSLB, .do_stab_bolted)
/* Space for the naca. Architected to be located at real address
* NACA_PHYS_ADDR. Various tools rely on this location being fixed.
* The first dword of the naca is required by iSeries LPAR to
* point to itVpdAreas. On pSeries native, this value is not used.
*/
. = NACA_PHYS_ADDR
.globl __end_interrupts
__end_interrupts:
/*
* Vectors for the FWNMI option. Share common code.
*/
.globl system_reset_fwnmi
system_reset_fwnmi:
HMT_MEDIUM
mtspr SPRG1,r13 /* save r13 */
RUNLATCH_ON(r13)
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common)
.globl machine_check_fwnmi
machine_check_fwnmi:
HMT_MEDIUM
mtspr SPRG1,r13 /* save r13 */
RUNLATCH_ON(r13)
EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
#ifdef CONFIG_PPC_ISERIES
.globl naca
naca:
.llong itVpdAreas
.llong 0 /* xRamDisk */
.llong 0 /* xRamDiskSize */
. = 0x6100
/*** ISeries-LPAR interrupt handlers ***/
STD_EXCEPTION_ISERIES(0x200, machine_check, PACA_EXMC)
@ -626,9 +622,7 @@ system_reset_iSeries:
cmpwi 0,r23,0
beq iSeries_secondary_smp_loop /* Loop until told to go */
#ifdef SECONDARY_PROCESSORS
bne .__secondary_start /* Loop until told to go */
#endif
iSeries_secondary_smp_loop:
/* Let the Hypervisor know we are alive */
/* 8002 is a call to HvCallCfg::getLps, a harmless Hypervisor function */
@ -671,51 +665,8 @@ hardware_interrupt_iSeries_masked:
ld r13,PACA_EXGEN+EX_R13(r13)
rfid
b . /* prevent speculative execution */
#endif
/*
* Data area reserved for FWNMI option.
*/
.= 0x7000
.globl fwnmi_data_area
fwnmi_data_area:
#ifdef CONFIG_PPC_ISERIES
. = LPARMAP_PHYS
#include "lparmap.s"
#endif /* CONFIG_PPC_ISERIES */
/*
* Vectors for the FWNMI option. Share common code.
*/
. = 0x8000
.globl system_reset_fwnmi
system_reset_fwnmi:
HMT_MEDIUM
mtspr SPRG1,r13 /* save r13 */
RUNLATCH_ON(r13)
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common)
.globl machine_check_fwnmi
machine_check_fwnmi:
HMT_MEDIUM
mtspr SPRG1,r13 /* save r13 */
RUNLATCH_ON(r13)
EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
/*
* Space for the initial segment table
* For LPAR, the hypervisor must fill in at least one entry
* before we get control (with relocate on)
*/
. = STAB0_PHYS_ADDR
.globl __start_stab
__start_stab:
. = (STAB0_PHYS_ADDR + PAGE_SIZE)
.globl __end_stab
__end_stab:
/*** Common interrupt handlers ***/
STD_EXCEPTION_COMMON(0x100, system_reset, .system_reset_exception)
@ -752,8 +703,8 @@ machine_check_common:
* R9 contains the saved CR, r13 points to the paca,
* r10 contains the (bad) kernel stack pointer,
* r11 and r12 contain the saved SRR0 and SRR1.
* We switch to using the paca guard page as an emergency stack,
* save the registers there, and call kernel_bad_stack(), which panics.
* We switch to using an emergency stack, save the registers there,
* and call kernel_bad_stack(), which panics.
*/
bad_stack:
ld r1,PACAEMERGSP(r13)
@ -906,6 +857,62 @@ fp_unavailable_common:
bl .kernel_fp_unavailable_exception
BUG_OPCODE
/*
* load_up_fpu(unused, unused, tsk)
* Disable FP for the task which had the FPU previously,
* and save its floating-point registers in its thread_struct.
* Enables the FPU for use in the kernel on return.
* On SMP we know the fpu is free, since we give it up every
* switch (ie, no lazy save of the FP registers).
* On entry: r13 == 'current' && last_task_used_math != 'current'
*/
_STATIC(load_up_fpu)
mfmsr r5 /* grab the current MSR */
ori r5,r5,MSR_FP
mtmsrd r5 /* enable use of fpu now */
isync
/*
* For SMP, we don't do lazy FPU switching because it just gets too
* horrendously complex, especially when a task switches from one CPU
* to another. Instead we call giveup_fpu in switch_to.
*
*/
#ifndef CONFIG_SMP
ld r3,last_task_used_math@got(r2)
ld r4,0(r3)
cmpdi 0,r4,0
beq 1f
/* Save FP state to last_task_used_math's THREAD struct */
addi r4,r4,THREAD
SAVE_32FPRS(0, r4)
mffs fr0
stfd fr0,THREAD_FPSCR(r4)
/* Disable FP for last_task_used_math */
ld r5,PT_REGS(r4)
ld r4,_MSR-STACK_FRAME_OVERHEAD(r5)
li r6,MSR_FP|MSR_FE0|MSR_FE1
andc r4,r4,r6
std r4,_MSR-STACK_FRAME_OVERHEAD(r5)
1:
#endif /* CONFIG_SMP */
/* enable use of FP after return */
ld r4,PACACURRENT(r13)
addi r5,r4,THREAD /* Get THREAD */
ld r4,THREAD_FPEXC_MODE(r5)
ori r12,r12,MSR_FP
or r12,r12,r4
std r12,_MSR(r1)
lfd fr0,THREAD_FPSCR(r5)
mtfsf 0xff,fr0
REST_32FPRS(0, r5)
#ifndef CONFIG_SMP
/* Update last_task_used_math to 'current' */
subi r4,r5,THREAD /* Back to 'current' */
std r4,0(r3)
#endif /* CONFIG_SMP */
/* restore registers and return */
b fast_exception_return
.align 7
.globl altivec_unavailable_common
altivec_unavailable_common:
@ -921,6 +928,80 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
bl .altivec_unavailable_exception
b .ret_from_except
#ifdef CONFIG_ALTIVEC
/*
* load_up_altivec(unused, unused, tsk)
* Disable VMX for the task which had it previously,
* and save its vector registers in its thread_struct.
* Enables the VMX for use in the kernel on return.
* On SMP we know the VMX is free, since we give it up every
* switch (ie, no lazy save of the vector registers).
* On entry: r13 == 'current' && last_task_used_altivec != 'current'
*/
_STATIC(load_up_altivec)
mfmsr r5 /* grab the current MSR */
oris r5,r5,MSR_VEC@h
mtmsrd r5 /* enable use of VMX now */
isync
/*
* For SMP, we don't do lazy VMX switching because it just gets too
* horrendously complex, especially when a task switches from one CPU
* to another. Instead we call giveup_altvec in switch_to.
* VRSAVE isn't dealt with here, that is done in the normal context
* switch code. Note that we could rely on vrsave value to eventually
* avoid saving all of the VREGs here...
*/
#ifndef CONFIG_SMP
ld r3,last_task_used_altivec@got(r2)
ld r4,0(r3)
cmpdi 0,r4,0
beq 1f
/* Save VMX state to last_task_used_altivec's THREAD struct */
addi r4,r4,THREAD
SAVE_32VRS(0,r5,r4)
mfvscr vr0
li r10,THREAD_VSCR
stvx vr0,r10,r4
/* Disable VMX for last_task_used_altivec */
ld r5,PT_REGS(r4)
ld r4,_MSR-STACK_FRAME_OVERHEAD(r5)
lis r6,MSR_VEC@h
andc r4,r4,r6
std r4,_MSR-STACK_FRAME_OVERHEAD(r5)
1:
#endif /* CONFIG_SMP */
/* Hack: if we get an altivec unavailable trap with VRSAVE
* set to all zeros, we assume this is a broken application
* that fails to set it properly, and thus we switch it to
* all 1's
*/
mfspr r4,SPRN_VRSAVE
cmpdi 0,r4,0
bne+ 1f
li r4,-1
mtspr SPRN_VRSAVE,r4
1:
/* enable use of VMX after return */
ld r4,PACACURRENT(r13)
addi r5,r4,THREAD /* Get THREAD */
oris r12,r12,MSR_VEC@h
std r12,_MSR(r1)
li r4,1
li r10,THREAD_VSCR
stw r4,THREAD_USED_VR(r5)
lvx vr0,r10,r5
mtvscr vr0
REST_32VRS(0,r4,r5)
#ifndef CONFIG_SMP
/* Update last_task_used_math to 'current' */
subi r4,r5,THREAD /* Back to 'current' */
std r4,0(r3)
#endif /* CONFIG_SMP */
/* restore registers and return */
b fast_exception_return
#endif /* CONFIG_ALTIVEC */
/*
* Hash table stuff
*/
@ -1167,6 +1248,28 @@ unrecov_slb:
bl .unrecoverable_exception
b 1b
/*
* Space for CPU0's segment table.
*
* On iSeries, the hypervisor must fill in at least one entry before
* we get control (with relocate on). The address is give to the hv
* as a page number (see xLparMap in LparData.c), so this must be at a
* fixed address (the linker can't compute (u64)&initial_stab >>
* PAGE_SHIFT).
*/
. = STAB0_PHYS_ADDR /* 0x6000 */
.globl initial_stab
initial_stab:
.space 4096
/*
* Data area reserved for FWNMI option.
* This address (0x7000) is fixed by the RPA.
*/
.= 0x7000
.globl fwnmi_data_area
fwnmi_data_area:
.space PAGE_SIZE
/*
* On pSeries, secondary processors spin in the following code.
@ -1200,7 +1303,7 @@ _GLOBAL(pSeries_secondary_smp_init)
b .kexec_wait /* next kernel might do better */
2: mtspr SPRG3,r13 /* Save vaddr of paca in SPRG3 */
/* From now on, r24 is expected to be logica cpuid */
/* From now on, r24 is expected to be logical cpuid */
mr r24,r5
3: HMT_LOW
lbz r23,PACAPROCSTART(r13) /* Test if this processor should */
@ -1213,9 +1316,7 @@ _GLOBAL(pSeries_secondary_smp_init)
cmpwi 0,r23,0
#ifdef CONFIG_SMP
#ifdef SECONDARY_PROCESSORS
bne .__secondary_start
#endif
#endif
b 3b /* Loop until told to go */
@ -1430,228 +1531,6 @@ _GLOBAL(copy_and_flush)
.align 8
copy_to_here:
/*
* load_up_fpu(unused, unused, tsk)
* Disable FP for the task which had the FPU previously,
* and save its floating-point registers in its thread_struct.
* Enables the FPU for use in the kernel on return.
* On SMP we know the fpu is free, since we give it up every
* switch (ie, no lazy save of the FP registers).
* On entry: r13 == 'current' && last_task_used_math != 'current'
*/
_STATIC(load_up_fpu)
mfmsr r5 /* grab the current MSR */
ori r5,r5,MSR_FP
mtmsrd r5 /* enable use of fpu now */
isync
/*
* For SMP, we don't do lazy FPU switching because it just gets too
* horrendously complex, especially when a task switches from one CPU
* to another. Instead we call giveup_fpu in switch_to.
*
*/
#ifndef CONFIG_SMP
ld r3,last_task_used_math@got(r2)
ld r4,0(r3)
cmpdi 0,r4,0
beq 1f
/* Save FP state to last_task_used_math's THREAD struct */
addi r4,r4,THREAD
SAVE_32FPRS(0, r4)
mffs fr0
stfd fr0,THREAD_FPSCR(r4)
/* Disable FP for last_task_used_math */
ld r5,PT_REGS(r4)
ld r4,_MSR-STACK_FRAME_OVERHEAD(r5)
li r6,MSR_FP|MSR_FE0|MSR_FE1
andc r4,r4,r6
std r4,_MSR-STACK_FRAME_OVERHEAD(r5)
1:
#endif /* CONFIG_SMP */
/* enable use of FP after return */
ld r4,PACACURRENT(r13)
addi r5,r4,THREAD /* Get THREAD */
ld r4,THREAD_FPEXC_MODE(r5)
ori r12,r12,MSR_FP
or r12,r12,r4
std r12,_MSR(r1)
lfd fr0,THREAD_FPSCR(r5)
mtfsf 0xff,fr0
REST_32FPRS(0, r5)
#ifndef CONFIG_SMP
/* Update last_task_used_math to 'current' */
subi r4,r5,THREAD /* Back to 'current' */
std r4,0(r3)
#endif /* CONFIG_SMP */
/* restore registers and return */
b fast_exception_return
/*
* disable_kernel_fp()
* Disable the FPU.
*/
_GLOBAL(disable_kernel_fp)
mfmsr r3
rldicl r0,r3,(63-MSR_FP_LG),1
rldicl r3,r0,(MSR_FP_LG+1),0
mtmsrd r3 /* disable use of fpu now */
isync
blr
/*
* giveup_fpu(tsk)
* Disable FP for the task given as the argument,
* and save the floating-point registers in its thread_struct.
* Enables the FPU for use in the kernel on return.
*/
_GLOBAL(giveup_fpu)
mfmsr r5
ori r5,r5,MSR_FP
mtmsrd r5 /* enable use of fpu now */
isync
cmpdi 0,r3,0
beqlr- /* if no previous owner, done */
addi r3,r3,THREAD /* want THREAD of task */
ld r5,PT_REGS(r3)
cmpdi 0,r5,0
SAVE_32FPRS(0, r3)
mffs fr0
stfd fr0,THREAD_FPSCR(r3)
beq 1f
ld r4,_MSR-STACK_FRAME_OVERHEAD(r5)
li r3,MSR_FP|MSR_FE0|MSR_FE1
andc r4,r4,r3 /* disable FP for previous task */
std r4,_MSR-STACK_FRAME_OVERHEAD(r5)
1:
#ifndef CONFIG_SMP
li r5,0
ld r4,last_task_used_math@got(r2)
std r5,0(r4)
#endif /* CONFIG_SMP */
blr
#ifdef CONFIG_ALTIVEC
/*
* load_up_altivec(unused, unused, tsk)
* Disable VMX for the task which had it previously,
* and save its vector registers in its thread_struct.
* Enables the VMX for use in the kernel on return.
* On SMP we know the VMX is free, since we give it up every
* switch (ie, no lazy save of the vector registers).
* On entry: r13 == 'current' && last_task_used_altivec != 'current'
*/
_STATIC(load_up_altivec)
mfmsr r5 /* grab the current MSR */
oris r5,r5,MSR_VEC@h
mtmsrd r5 /* enable use of VMX now */
isync
/*
* For SMP, we don't do lazy VMX switching because it just gets too
* horrendously complex, especially when a task switches from one CPU
* to another. Instead we call giveup_altvec in switch_to.
* VRSAVE isn't dealt with here, that is done in the normal context
* switch code. Note that we could rely on vrsave value to eventually
* avoid saving all of the VREGs here...
*/
#ifndef CONFIG_SMP
ld r3,last_task_used_altivec@got(r2)
ld r4,0(r3)
cmpdi 0,r4,0
beq 1f
/* Save VMX state to last_task_used_altivec's THREAD struct */
addi r4,r4,THREAD
SAVE_32VRS(0,r5,r4)
mfvscr vr0
li r10,THREAD_VSCR
stvx vr0,r10,r4
/* Disable VMX for last_task_used_altivec */
ld r5,PT_REGS(r4)
ld r4,_MSR-STACK_FRAME_OVERHEAD(r5)
lis r6,MSR_VEC@h
andc r4,r4,r6
std r4,_MSR-STACK_FRAME_OVERHEAD(r5)
1:
#endif /* CONFIG_SMP */
/* Hack: if we get an altivec unavailable trap with VRSAVE
* set to all zeros, we assume this is a broken application
* that fails to set it properly, and thus we switch it to
* all 1's
*/
mfspr r4,SPRN_VRSAVE
cmpdi 0,r4,0
bne+ 1f
li r4,-1
mtspr SPRN_VRSAVE,r4
1:
/* enable use of VMX after return */
ld r4,PACACURRENT(r13)
addi r5,r4,THREAD /* Get THREAD */
oris r12,r12,MSR_VEC@h
std r12,_MSR(r1)
li r4,1
li r10,THREAD_VSCR
stw r4,THREAD_USED_VR(r5)
lvx vr0,r10,r5
mtvscr vr0
REST_32VRS(0,r4,r5)
#ifndef CONFIG_SMP
/* Update last_task_used_math to 'current' */
subi r4,r5,THREAD /* Back to 'current' */
std r4,0(r3)
#endif /* CONFIG_SMP */
/* restore registers and return */
b fast_exception_return
/*
* disable_kernel_altivec()
* Disable the VMX.
*/
_GLOBAL(disable_kernel_altivec)
mfmsr r3
rldicl r0,r3,(63-MSR_VEC_LG),1
rldicl r3,r0,(MSR_VEC_LG+1),0
mtmsrd r3 /* disable use of VMX now */
isync
blr
/*
* giveup_altivec(tsk)
* Disable VMX for the task given as the argument,
* and save the vector registers in its thread_struct.
* Enables the VMX for use in the kernel on return.
*/
_GLOBAL(giveup_altivec)
mfmsr r5
oris r5,r5,MSR_VEC@h
mtmsrd r5 /* enable use of VMX now */
isync
cmpdi 0,r3,0
beqlr- /* if no previous owner, done */
addi r3,r3,THREAD /* want THREAD of task */
ld r5,PT_REGS(r3)
cmpdi 0,r5,0
SAVE_32VRS(0,r4,r3)
mfvscr vr0
li r4,THREAD_VSCR
stvx vr0,r4,r3
beq 1f
ld r4,_MSR-STACK_FRAME_OVERHEAD(r5)
lis r3,MSR_VEC@h
andc r4,r4,r3 /* disable FP for previous task */
std r4,_MSR-STACK_FRAME_OVERHEAD(r5)
1:
#ifndef CONFIG_SMP
li r5,0
ld r4,last_task_used_altivec@got(r2)
std r5,0(r4)
#endif /* CONFIG_SMP */
blr
#endif /* CONFIG_ALTIVEC */
#ifdef CONFIG_SMP
#ifdef CONFIG_PPC_PMAC
/*
@ -2002,9 +1881,6 @@ _STATIC(start_here_common)
bl .start_kernel
_GLOBAL(__setup_cpu_power3)
blr
_GLOBAL(hmt_init)
#ifdef CONFIG_HMT
LOADADDR(r5, hmt_thread_data)
@ -2095,20 +1971,19 @@ _GLOBAL(smp_release_cpus)
/*
* We put a few things here that have to be page-aligned.
* This stuff goes at the beginning of the data segment,
* which is page-aligned.
* This stuff goes at the beginning of the bss, which is page-aligned.
*/
.data
.section ".bss"
.align 12
.globl sdata
sdata:
.globl empty_zero_page
empty_zero_page:
.space 4096
.space PAGE_SIZE
.globl swapper_pg_dir
swapper_pg_dir:
.space 4096
.space PAGE_SIZE
/*
* This space gets a copy of optional info passed to us by the bootstrap

5
arch/ppc64/kernel/iSeries_htab.c
View File

@ -41,6 +41,7 @@ static long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va,
unsigned long prpn, unsigned long vflags,
unsigned long rflags)
{
unsigned long arpn;
long slot;
hpte_t lhpte;
int secondary = 0;
@ -70,8 +71,10 @@ static long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va,
slot &= 0x7fffffffffffffff;
}
arpn = phys_to_abs(prpn << PAGE_SHIFT) >> PAGE_SHIFT;
lhpte.v = (va >> 23) << HPTE_V_AVPN_SHIFT | vflags | HPTE_V_VALID;
lhpte.r = (physRpn_to_absRpn(prpn) << HPTE_R_RPN_SHIFT) | rflags;
lhpte.r = (arpn << HPTE_R_RPN_SHIFT) | rflags;
/* Now fill in the actual HPTE */
HvCallHpt_addValidate(slot, secondary, &lhpte);

30
arch/ppc64/kernel/iSeries_setup.c
View File

@ -39,6 +39,7 @@
#include <asm/cputable.h>
#include <asm/sections.h>
#include <asm/iommu.h>
#include <asm/firmware.h>
#include <asm/time.h>
#include "iSeries_setup.h"
@ -314,6 +315,8 @@ static void __init iSeries_init_early(void)
DBG(" -> iSeries_init_early()\n");
ppc64_firmware_features = FW_FEATURE_ISERIES;
ppcdbg_initialize();
#if defined(CONFIG_BLK_DEV_INITRD)
@ -412,6 +415,22 @@ static void __init iSeries_init_early(void)
DBG(" <- iSeries_init_early()\n");
}
struct mschunks_map mschunks_map = {
/* XXX We don't use these, but Piranha might need them. */
.chunk_size = MSCHUNKS_CHUNK_SIZE,
.chunk_shift = MSCHUNKS_CHUNK_SHIFT,
.chunk_mask = MSCHUNKS_OFFSET_MASK,
};
EXPORT_SYMBOL(mschunks_map);
void mschunks_alloc(unsigned long num_chunks)
{
klimit = _ALIGN(klimit, sizeof(u32));
mschunks_map.mapping = (u32 *)klimit;
klimit += num_chunks * sizeof(u32);
mschunks_map.num_chunks = num_chunks;
}
/*
* The iSeries may have very large memories ( > 128 GB ) and a partition
* may get memory in "chunks" that may be anywhere in the 2**52 real
@ -449,7 +468,7 @@ static void __init build_iSeries_Memory_Map(void)
/* Chunk size on iSeries is 256K bytes */
totalChunks = (u32)HvLpConfig_getMsChunks();
klimit = msChunks_alloc(klimit, totalChunks, 1UL << 18);
mschunks_alloc(totalChunks);
/*
* Get absolute address of our load area
@ -486,7 +505,7 @@ static void __init build_iSeries_Memory_Map(void)
printk("Load area size %dK\n", loadAreaSize * 256);
for (nextPhysChunk = 0; nextPhysChunk < loadAreaSize; ++nextPhysChunk)
msChunks.abs[nextPhysChunk] =
mschunks_map.mapping[nextPhysChunk] =
loadAreaFirstChunk + nextPhysChunk;
/*
@ -495,7 +514,7 @@ static void __init build_iSeries_Memory_Map(void)
*/
hptFirstChunk = (u32)addr_to_chunk(HvCallHpt_getHptAddress());
hptSizePages = (u32)HvCallHpt_getHptPages();
hptSizeChunks = hptSizePages >> (msChunks.chunk_shift - PAGE_SHIFT);
hptSizeChunks = hptSizePages >> (MSCHUNKS_CHUNK_SHIFT - PAGE_SHIFT);
hptLastChunk = hptFirstChunk + hptSizeChunks - 1;
printk("HPT absolute addr = %016lx, size = %dK\n",
@ -552,7 +571,8 @@ static void __init build_iSeries_Memory_Map(void)
(absChunk > hptLastChunk)) &&
((absChunk < loadAreaFirstChunk) ||
(absChunk > loadAreaLastChunk))) {
msChunks.abs[nextPhysChunk] = absChunk;
mschunks_map.mapping[nextPhysChunk] =
absChunk;
++nextPhysChunk;
}
}
@ -944,6 +964,8 @@ void __init iSeries_early_setup(void)
ppc_md.calibrate_decr = iSeries_calibrate_decr;
ppc_md.progress = iSeries_progress;
/* XXX Implement enable_pmcs for iSeries */
if (get_paca()->lppaca.shared_proc) {
ppc_md.idle_loop = iseries_shared_idle;
printk(KERN_INFO "Using shared processor idle loop\n");

144
arch/ppc64/kernel/iSeries_vio.c Normal file
View File

@ -0,0 +1,144 @@
/*
* IBM PowerPC iSeries Virtual I/O Infrastructure Support.
*
* Copyright (c) 2005 Stephen Rothwell, 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/types.h>
#include <linux/device.h>
#include <linux/init.h>
#include <asm/vio.h>
#include <asm/iommu.h>
#include <asm/abs_addr.h>
#include <asm/page.h>
#include <asm/iSeries/vio.h>
#include <asm/iSeries/HvTypes.h>
#include <asm/iSeries/HvLpConfig.h>
#include <asm/iSeries/HvCallXm.h>
struct device *iSeries_vio_dev = &vio_bus_device.dev;
EXPORT_SYMBOL(iSeries_vio_dev);
static struct iommu_table veth_iommu_table;
static struct iommu_table vio_iommu_table;
static void __init iommu_vio_init(void)
{
struct iommu_table *t;
struct iommu_table_cb cb;
unsigned long cbp;
unsigned long itc_entries;
cb.itc_busno = 255; /* Bus 255 is the virtual bus */
cb.itc_virtbus = 0xff; /* Ask for virtual bus */
cbp = virt_to_abs(&cb);
HvCallXm_getTceTableParms(cbp);
itc_entries = cb.itc_size * PAGE_SIZE / sizeof(union tce_entry);
veth_iommu_table.it_size = itc_entries / 2;
veth_iommu_table.it_busno = cb.itc_busno;
veth_iommu_table.it_offset = cb.itc_offset;
veth_iommu_table.it_index = cb.itc_index;
veth_iommu_table.it_type = TCE_VB;
veth_iommu_table.it_blocksize = 1;
t = iommu_init_table(&veth_iommu_table);
if (!t)
printk("Virtual Bus VETH TCE table failed.\n");
vio_iommu_table.it_size = itc_entries - veth_iommu_table.it_size;
vio_iommu_table.it_busno = cb.itc_busno;
vio_iommu_table.it_offset = cb.itc_offset +
veth_iommu_table.it_size;
vio_iommu_table.it_index = cb.itc_index;
vio_iommu_table.it_type = TCE_VB;
vio_iommu_table.it_blocksize = 1;
t = iommu_init_table(&vio_iommu_table);
if (!t)
printk("Virtual Bus VIO TCE table failed.\n");
}
/**
* vio_register_device: - Register a new vio device.
* @voidev: The device to register.
*/
static struct vio_dev *__init vio_register_device_iseries(char *type,
uint32_t unit_num)
{
struct vio_dev *viodev;
/* allocate a vio_dev for this node */
viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);
if (!viodev)
return NULL;
memset(viodev, 0, sizeof(struct vio_dev));
snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%s%d", type, unit_num);
return vio_register_device_common(viodev, viodev->dev.bus_id, type,
unit_num, &vio_iommu_table);
}
void __init probe_bus_iseries(void)
{
HvLpIndexMap vlan_map;
struct vio_dev *viodev;
int i;
/* there is only one of each of these */
vio_register_device_iseries("viocons", 0);
vio_register_device_iseries("vscsi", 0);
vlan_map = HvLpConfig_getVirtualLanIndexMap();
for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) {
if ((vlan_map & (0x8000 >> i)) == 0)
continue;
viodev = vio_register_device_iseries("vlan", i);
/* veth is special and has it own iommu_table */
viodev->iommu_table = &veth_iommu_table;
}
for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++)
vio_register_device_iseries("viodasd", i);
for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++)
vio_register_device_iseries("viocd", i);
for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++)
vio_register_device_iseries("viotape", i);
}
/**
* vio_match_device_iseries: - Tell if a iSeries VIO device matches a
* vio_device_id
*/
static int vio_match_device_iseries(const struct vio_device_id *id,
const struct vio_dev *dev)
{
return strncmp(dev->type, id->type, strlen(id->type)) == 0;
}
/**
* vio_bus_init_iseries: - Initialize the iSeries virtual IO bus
*/
static int __init vio_bus_init_iseries(void)
{
int err;
err = vio_bus_init(vio_match_device_iseries, NULL, NULL);
if (err == 0) {
iommu_vio_init();
vio_bus_device.iommu_table = &vio_iommu_table;
iSeries_vio_dev = &vio_bus_device.dev;
probe_bus_iseries();
}
return err;
}
__initcall(vio_bus_init_iseries);

149
arch/ppc64/kernel/lmb.c
View File

@ -28,33 +28,28 @@ void lmb_dump_all(void)
{
#ifdef DEBUG
unsigned long i;
struct lmb *_lmb = &lmb;
udbg_printf("lmb_dump_all:\n");
udbg_printf(" memory.cnt = 0x%lx\n",
_lmb->memory.cnt);
lmb.memory.cnt);
udbg_printf(" memory.size = 0x%lx\n",
_lmb->memory.size);
for (i=0; i < _lmb->memory.cnt ;i++) {
lmb.memory.size);
for (i=0; i < lmb.memory.cnt ;i++) {
udbg_printf(" memory.region[0x%x].base = 0x%lx\n",
i, _lmb->memory.region[i].base);
udbg_printf(" .physbase = 0x%lx\n",
_lmb->memory.region[i].physbase);
i, lmb.memory.region[i].base);
udbg_printf(" .size = 0x%lx\n",
_lmb->memory.region[i].size);
lmb.memory.region[i].size);
}
udbg_printf("\n reserved.cnt = 0x%lx\n",
_lmb->reserved.cnt);
lmb.reserved.cnt);
udbg_printf(" reserved.size = 0x%lx\n",
_lmb->reserved.size);
for (i=0; i < _lmb->reserved.cnt ;i++) {
lmb.reserved.size);
for (i=0; i < lmb.reserved.cnt ;i++) {
udbg_printf(" reserved.region[0x%x].base = 0x%lx\n",
i, _lmb->reserved.region[i].base);
udbg_printf(" .physbase = 0x%lx\n",
_lmb->reserved.region[i].physbase);
i, lmb.reserved.region[i].base);
udbg_printf(" .size = 0x%lx\n",
_lmb->reserved.region[i].size);
lmb.reserved.region[i].size);
}
#endif /* DEBUG */
}
@ -98,7 +93,6 @@ lmb_coalesce_regions(struct lmb_region *rgn, unsigned long r1, unsigned long r2)
rgn->region[r1].size += rgn->region[r2].size;
for (i=r2; i < rgn->cnt-1; i++) {
rgn->region[i].base = rgn->region[i+1].base;
rgn->region[i].physbase = rgn->region[i+1].physbase;
rgn->region[i].size = rgn->region[i+1].size;
}
rgn->cnt--;
@ -108,49 +102,29 @@ lmb_coalesce_regions(struct lmb_region *rgn, unsigned long r1, unsigned long r2)
void __init
lmb_init(void)
{
struct lmb *_lmb = &lmb;
/* Create a dummy zero size LMB which will get coalesced away later.
* This simplifies the lmb_add() code below...
*/
_lmb->memory.region[0].base = 0;
_lmb->memory.region[0].size = 0;
_lmb->memory.cnt = 1;
lmb.memory.region[0].base = 0;
lmb.memory.region[0].size = 0;
lmb.memory.cnt = 1;
/* Ditto. */
_lmb->reserved.region[0].base = 0;
_lmb->reserved.region[0].size = 0;
_lmb->reserved.cnt = 1;
lmb.reserved.region[0].base = 0;
lmb.reserved.region[0].size = 0;
lmb.reserved.cnt = 1;
}
/* This routine called with relocation disabled. */
void __init
lmb_analyze(void)
{
unsigned long i;
unsigned long mem_size = 0;
unsigned long size_mask = 0;
struct lmb *_lmb = &lmb;
#ifdef CONFIG_MSCHUNKS
unsigned long physbase = 0;
#endif
int i;
for (i=0; i < _lmb->memory.cnt; i++) {
unsigned long lmb_size;
lmb.memory.size = 0;
lmb_size = _lmb->memory.region[i].size;
#ifdef CONFIG_MSCHUNKS
_lmb->memory.region[i].physbase = physbase;
physbase += lmb_size;
#else
_lmb->memory.region[i].physbase = _lmb->memory.region[i].base;
#endif
mem_size += lmb_size;
size_mask |= lmb_size;
}
_lmb->memory.size = mem_size;
for (i = 0; i < lmb.memory.cnt; i++)
lmb.memory.size += lmb.memory.region[i].size;
}
/* This routine called with relocation disabled. */
@ -168,7 +142,6 @@ lmb_add_region(struct lmb_region *rgn, unsigned long base, unsigned long size)
adjacent = lmb_addrs_adjacent(base,size,rgnbase,rgnsize);
if ( adjacent > 0 ) {
rgn->region[i].base -= size;
rgn->region[i].physbase -= size;
rgn->region[i].size += size;
coalesced++;
break;
@ -195,11 +168,9 @@ lmb_add_region(struct lmb_region *rgn, unsigned long base, unsigned long size)
for (i=rgn->cnt-1; i >= 0; i--) {
if (base < rgn->region[i].base) {
rgn->region[i+1].base = rgn->region[i].base;
rgn->region[i+1].physbase = rgn->region[i].physbase;
rgn->region[i+1].size = rgn->region[i].size;
} else {
rgn->region[i+1].base = base;
rgn->region[i+1].physbase = lmb_abs_to_phys(base);
rgn->region[i+1].size = size;
break;
}
@ -213,12 +184,11 @@ lmb_add_region(struct lmb_region *rgn, unsigned long base, unsigned long size)
long __init
lmb_add(unsigned long base, unsigned long size)
{
struct lmb *_lmb = &lmb;
struct lmb_region *_rgn = &(_lmb->memory);
struct lmb_region *_rgn = &(lmb.memory);
/* On pSeries LPAR systems, the first LMB is our RMO region. */
if ( base == 0 )
_lmb->rmo_size = size;
lmb.rmo_size = size;
return lmb_add_region(_rgn, base, size);
@ -227,8 +197,7 @@ lmb_add(unsigned long base, unsigned long size)
long __init
lmb_reserve(unsigned long base, unsigned long size)
{
struct lmb *_lmb = &lmb;
struct lmb_region *_rgn = &(_lmb->reserved);
struct lmb_region *_rgn = &(lmb.reserved);
return lmb_add_region(_rgn, base, size);
}
@ -260,13 +229,10 @@ lmb_alloc_base(unsigned long size, unsigned long align, unsigned long max_addr)
{
long i, j;
unsigned long base = 0;
struct lmb *_lmb = &lmb;
struct lmb_region *_mem = &(_lmb->memory);
struct lmb_region *_rsv = &(_lmb->reserved);
for (i=_mem->cnt-1; i >= 0; i--) {
unsigned long lmbbase = _mem->region[i].base;
unsigned long lmbsize = _mem->region[i].size;
for (i=lmb.memory.cnt-1; i >= 0; i--) {
unsigned long lmbbase = lmb.memory.region[i].base;
unsigned long lmbsize = lmb.memory.region[i].size;
if ( max_addr == LMB_ALLOC_ANYWHERE )
base = _ALIGN_DOWN(lmbbase+lmbsize-size, align);
@ -276,8 +242,8 @@ lmb_alloc_base(unsigned long size, unsigned long align, unsigned long max_addr)
continue;
while ( (lmbbase <= base) &&
((j = lmb_overlaps_region(_rsv,base,size)) >= 0) ) {
base = _ALIGN_DOWN(_rsv->region[j].base-size, align);
((j = lmb_overlaps_region(&lmb.reserved,base,size)) >= 0) ) {
base = _ALIGN_DOWN(lmb.reserved.region[j].base-size, align);
}
if ( (base != 0) && (lmbbase <= base) )
@ -287,62 +253,24 @@ lmb_alloc_base(unsigned long size, unsigned long align, unsigned long max_addr)
if ( i < 0 )
return 0;
lmb_add_region(_rsv, base, size);
lmb_add_region(&lmb.reserved, base, size);
return base;
}
/* You must call lmb_analyze() before this. */
unsigned long __init
lmb_phys_mem_size(void)
{
struct lmb *_lmb = &lmb;
#ifdef CONFIG_MSCHUNKS
return _lmb->memory.size;
#else
struct lmb_region *_mem = &(_lmb->memory);
unsigned long total = 0;
int i;
/* add all physical memory to the bootmem map */
for (i=0; i < _mem->cnt; i++)
total += _mem->region[i].size;
return total;
#endif /* CONFIG_MSCHUNKS */
return lmb.memory.size;
}
unsigned long __init
lmb_end_of_DRAM(void)
{
struct lmb *_lmb = &lmb;
struct lmb_region *_mem = &(_lmb->memory);
int idx = _mem->cnt - 1;
int idx = lmb.memory.cnt - 1;
#ifdef CONFIG_MSCHUNKS
return (_mem->region[idx].physbase + _mem->region[idx].size);
#else
return (_mem->region[idx].base + _mem->region[idx].size);
#endif /* CONFIG_MSCHUNKS */
return 0;
}
unsigned long __init
lmb_abs_to_phys(unsigned long aa)
{
unsigned long i, pa = aa;
struct lmb *_lmb = &lmb;
struct lmb_region *_mem = &(_lmb->memory);
for (i=0; i < _mem->cnt; i++) {
unsigned long lmbbase = _mem->region[i].base;
unsigned long lmbsize = _mem->region[i].size;
if ( lmb_addrs_overlap(aa,1,lmbbase,lmbsize) ) {
pa = _mem->region[i].physbase + (aa - lmbbase);
break;
}
}
return pa;
return (lmb.memory.region[idx].base + lmb.memory.region[idx].size);
}
/*
@ -353,20 +281,19 @@ void __init lmb_enforce_memory_limit(void)
{
extern unsigned long memory_limit;
unsigned long i, limit;
struct lmb_region *mem = &(lmb.memory);
if (! memory_limit)
return;
limit = memory_limit;
for (i = 0; i < mem->cnt; i++) {
if (limit > mem->region[i].size) {
limit -= mem->region[i].size;
for (i = 0; i < lmb.memory.cnt; i++) {
if (limit > lmb.memory.region[i].size) {
limit -= lmb.memory.region[i].size;
continue;
}
mem->region[i].size = limit;
mem->cnt = i + 1;
lmb.memory.region[i].size = limit;
lmb.memory.cnt = i + 1;
break;
}
}

6
arch/ppc64/kernel/lparcfg.c
View File

@ -29,7 +29,7 @@
#include <asm/iSeries/HvLpConfig.h>
#include <asm/lppaca.h>
#include <asm/hvcall.h>
#include <asm/cputable.h>
#include <asm/firmware.h>
#include <asm/rtas.h>
#include <asm/system.h>
#include <asm/time.h>
@ -377,7 +377,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
partition_active_processors = lparcfg_count_active_processors();
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
unsigned long h_entitled, h_unallocated;
unsigned long h_aggregation, h_resource;
unsigned long pool_idle_time, pool_procs;
@ -571,7 +571,7 @@ int __init lparcfg_init(void)
mode_t mode = S_IRUSR;
/* Allow writing if we have FW_FEATURE_SPLPAR */
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
lparcfg_fops.write = lparcfg_write;
mode |= S_IWUSR;
}

98
arch/ppc64/kernel/misc.S
View File

@ -680,6 +680,104 @@ _GLOBAL(kernel_thread)
ld r30,-16(r1)
blr
/*
* disable_kernel_fp()
* Disable the FPU.
*/
_GLOBAL(disable_kernel_fp)
mfmsr r3
rldicl r0,r3,(63-MSR_FP_LG),1
rldicl r3,r0,(MSR_FP_LG+1),0
mtmsrd r3 /* disable use of fpu now */
isync
blr
/*
* giveup_fpu(tsk)
* Disable FP for the task given as the argument,
* and save the floating-point registers in its thread_struct.
* Enables the FPU for use in the kernel on return.
*/
_GLOBAL(giveup_fpu)
mfmsr r5
ori r5,r5,MSR_FP
mtmsrd r5 /* enable use of fpu now */
isync
cmpdi 0,r3,0
beqlr- /* if no previous owner, done */
addi r3,r3,THREAD /* want THREAD of task */
ld r5,PT_REGS(r3)
cmpdi 0,r5,0
SAVE_32FPRS(0, r3)
mffs fr0
stfd fr0,THREAD_FPSCR(r3)
beq 1f
ld r4,_MSR-STACK_FRAME_OVERHEAD(r5)
li r3,MSR_FP|MSR_FE0|MSR_FE1
andc r4,r4,r3 /* disable FP for previous task */
std r4,_MSR-STACK_FRAME_OVERHEAD(r5)
1:
#ifndef CONFIG_SMP
li r5,0
ld r4,last_task_used_math@got(r2)
std r5,0(r4)
#endif /* CONFIG_SMP */
blr
#ifdef CONFIG_ALTIVEC
#if 0 /* this has no callers for now */
/*
* disable_kernel_altivec()
* Disable the VMX.
*/
_GLOBAL(disable_kernel_altivec)
mfmsr r3
rldicl r0,r3,(63-MSR_VEC_LG),1
rldicl r3,r0,(MSR_VEC_LG+1),0
mtmsrd r3 /* disable use of VMX now */
isync
blr
#endif /* 0 */
/*
* giveup_altivec(tsk)
* Disable VMX for the task given as the argument,
* and save the vector registers in its thread_struct.
* Enables the VMX for use in the kernel on return.
*/
_GLOBAL(giveup_altivec)
mfmsr r5
oris r5,r5,MSR_VEC@h
mtmsrd r5 /* enable use of VMX now */
isync
cmpdi 0,r3,0
beqlr- /* if no previous owner, done */
addi r3,r3,THREAD /* want THREAD of task */
ld r5,PT_REGS(r3)
cmpdi 0,r5,0
SAVE_32VRS(0,r4,r3)
mfvscr vr0
li r4,THREAD_VSCR
stvx vr0,r4,r3
beq 1f
ld r4,_MSR-STACK_FRAME_OVERHEAD(r5)
lis r3,MSR_VEC@h
andc r4,r4,r3 /* disable FP for previous task */
std r4,_MSR-STACK_FRAME_OVERHEAD(r5)
1:
#ifndef CONFIG_SMP
li r5,0
ld r4,last_task_used_altivec@got(r2)
std r5,0(r4)
#endif /* CONFIG_SMP */
blr
#endif /* CONFIG_ALTIVEC */
_GLOBAL(__setup_cpu_power3)
blr
/* kexec_wait(phys_cpu)
*
* wait for the flag to change, indicating this kernel is going away but

3
arch/ppc64/kernel/pSeries_iommu.c
View File

@ -45,6 +45,7 @@
#include <asm/plpar_wrappers.h>
#include <asm/pSeries_reconfig.h>
#include <asm/systemcfg.h>
#include <asm/firmware.h>
#include "pci.h"
#define DBG(fmt...)
@ -546,7 +547,7 @@ void iommu_init_early_pSeries(void)
}
if (systemcfg->platform & PLATFORM_LPAR) {
if (cur_cpu_spec->firmware_features & FW_FEATURE_MULTITCE) {
if (firmware_has_feature(FW_FEATURE_MULTITCE)) {
ppc_md.tce_build = tce_buildmulti_pSeriesLP;
ppc_md.tce_free = tce_freemulti_pSeriesLP;
} else {

4
arch/ppc64/kernel/pSeries_lpar.c
View File

@ -52,7 +52,6 @@ EXPORT_SYMBOL(plpar_hcall_4out);
EXPORT_SYMBOL(plpar_hcall_norets);
EXPORT_SYMBOL(plpar_hcall_8arg_2ret);
extern void fw_feature_init(void);
extern void pSeries_find_serial_port(void);
@ -279,7 +278,6 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
unsigned long va, unsigned long prpn,
unsigned long vflags, unsigned long rflags)
{
unsigned long arpn = physRpn_to_absRpn(prpn);
unsigned long lpar_rc;
unsigned long flags;
unsigned long slot;
@ -290,7 +288,7 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
if (vflags & HPTE_V_LARGE)
hpte_v &= ~(1UL << HPTE_V_AVPN_SHIFT);
hpte_r = (arpn << HPTE_R_RPN_SHIFT) | rflags;
hpte_r = (prpn << HPTE_R_RPN_SHIFT) | rflags;
/* Now fill in the actual HPTE */
/* Set CEC cookie to 0 */

39
arch/ppc64/kernel/pSeries_setup.c
View File

@ -60,7 +60,8 @@
#include <asm/nvram.h>
#include <asm/plpar_wrappers.h>
#include <asm/xics.h>
#include <asm/cputable.h>
#include <asm/firmware.h>
#include <asm/pmc.h>
#include "i8259.h"
#include "mpic.h"
@ -187,6 +188,21 @@ static void __init pSeries_setup_mpic(void)
" MPIC ");
}
static void pseries_lpar_enable_pmcs(void)
{
unsigned long set, reset;
power4_enable_pmcs();
set = 1UL << 63;
reset = 0;
plpar_hcall_norets(H_PERFMON, set, reset);
/* instruct hypervisor to maintain PMCs */
if (firmware_has_feature(FW_FEATURE_SPLPAR))
get_paca()->lppaca.pmcregs_in_use = 1;
}
static void __init pSeries_setup_arch(void)
{
/* Fixup ppc_md depending on the type of interrupt controller */
@ -231,11 +247,9 @@ static void __init pSeries_setup_arch(void)
pSeries_nvram_init();
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR)
vpa_init(boot_cpuid);
/* Choose an idle loop */
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
vpa_init(boot_cpuid);
if (get_paca()->lppaca.shared_proc) {
printk(KERN_INFO "Using shared processor idle loop\n");
ppc_md.idle_loop = pseries_shared_idle;
@ -247,6 +261,11 @@ static void __init pSeries_setup_arch(void)
printk(KERN_INFO "Using default idle loop\n");
ppc_md.idle_loop = default_idle;
}
if (systemcfg->platform & PLATFORM_LPAR)
ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
else
ppc_md.enable_pmcs = power4_enable_pmcs;
}
static int __init pSeries_init_panel(void)
@ -260,11 +279,11 @@ static int __init pSeries_init_panel(void)
arch_initcall(pSeries_init_panel);
/* Build up the firmware_features bitmask field
/* Build up the ppc64_firmware_features bitmask field
* using contents of device-tree/ibm,hypertas-functions.
* Ultimately this functionality may be moved into prom.c prom_init().
*/
void __init fw_feature_init(void)
static void __init fw_feature_init(void)
{
struct device_node * dn;
char * hypertas;
@ -272,7 +291,7 @@ void __init fw_feature_init(void)
DBG(" -> fw_feature_init()\n");
cur_cpu_spec->firmware_features = 0;
ppc64_firmware_features = 0;
dn = of_find_node_by_path("/rtas");
if (dn == NULL) {
printk(KERN_ERR "WARNING ! Cannot find RTAS in device-tree !\n");
@ -288,7 +307,7 @@ void __init fw_feature_init(void)
if ((firmware_features_table[i].name) &&
(strcmp(firmware_features_table[i].name,hypertas))==0) {
/* we have a match */
cur_cpu_spec->firmware_features |=
ppc64_firmware_features |=
(firmware_features_table[i].val);
break;
}
@ -302,7 +321,7 @@ void __init fw_feature_init(void)
of_node_put(dn);
no_rtas:
printk(KERN_INFO "firmware_features = 0x%lx\n",
cur_cpu_spec->firmware_features);
ppc64_firmware_features);
DBG(" <- fw_feature_init()\n");
}

3
arch/ppc64/kernel/pSeries_smp.c
View File

@ -41,6 +41,7 @@
#include <asm/machdep.h>
#include <asm/xics.h>
#include <asm/cputable.h>
#include <asm/firmware.h>
#include <asm/system.h>
#include <asm/rtas.h>
#include <asm/plpar_wrappers.h>
@ -326,7 +327,7 @@ static void __devinit smp_xics_setup_cpu(int cpu)
if (cpu != boot_cpuid)
xics_setup_cpu();
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR)
if (firmware_has_feature(FW_FEATURE_SPLPAR))
vpa_init(cpu);
cpu_clear(cpu, of_spin_map);

266
arch/ppc64/kernel/pSeries_vio.c Normal file
View File

@ -0,0 +1,266 @@
/*
* IBM PowerPC pSeries Virtual I/O Infrastructure Support.
*
* Copyright (c) 2003-2005 IBM Corp.
* Dave Engebretsen engebret@us.ibm.com
* Santiago Leon santil@us.ibm.com
* Hollis Blanchard <hollisb@us.ibm.com>
* Stephen Rothwell
*
* 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/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/kobject.h>
#include <asm/iommu.h>
#include <asm/dma.h>
#include <asm/vio.h>
#include <asm/hvcall.h>
extern struct subsystem devices_subsys; /* needed for vio_find_name() */
static void probe_bus_pseries(void)
{
struct device_node *node_vroot, *of_node;
node_vroot = find_devices("vdevice");
if ((node_vroot == NULL) || (node_vroot->child == NULL))
/* this machine doesn't do virtual IO, and that's ok */
return;
/*
* Create struct vio_devices for each virtual device in the device tree.
* Drivers will associate with them later.
*/
for (of_node = node_vroot->child; of_node != NULL;
of_node = of_node->sibling) {
printk(KERN_DEBUG "%s: processing %p\n", __FUNCTION__, of_node);
vio_register_device_node(of_node);
}
}
/**
* vio_match_device_pseries: - Tell if a pSeries VIO device matches a
* vio_device_id
*/
static int vio_match_device_pseries(const struct vio_device_id *id,
const struct vio_dev *dev)
{
return (strncmp(dev->type, id->type, strlen(id->type)) == 0) &&
device_is_compatible(dev->dev.platform_data, id->compat);
}
static void vio_release_device_pseries(struct device *dev)
{
/* XXX free TCE table */
of_node_put(dev->platform_data);
}
static ssize_t viodev_show_devspec(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct device_node *of_node = dev->platform_data;
return sprintf(buf, "%s\n", of_node->full_name);
}
DEVICE_ATTR(devspec, S_IRUSR | S_IRGRP | S_IROTH, viodev_show_devspec, NULL);
static void vio_unregister_device_pseries(struct vio_dev *viodev)
{
device_remove_file(&viodev->dev, &dev_attr_devspec);
}
/**
* vio_bus_init_pseries: - Initialize the pSeries virtual IO bus
*/
static int __init vio_bus_init_pseries(void)
{
int err;
err = vio_bus_init(vio_match_device_pseries,
vio_unregister_device_pseries,
vio_release_device_pseries);
if (err == 0)
probe_bus_pseries();
return err;
}
__initcall(vio_bus_init_pseries);
/**
* vio_build_iommu_table: - gets the dma information from OF and
* builds the TCE tree.
* @dev: the virtual device.
*
* Returns a pointer to the built tce tree, or NULL if it can't
* find property.
*/
static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
{
unsigned int *dma_window;
struct iommu_table *newTceTable;
unsigned long offset;
int dma_window_property_size;
dma_window = (unsigned int *) get_property(dev->dev.platform_data, "ibm,my-dma-window", &dma_window_property_size);
if(!dma_window) {
return NULL;
}
newTceTable = (struct iommu_table *) kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
/* There should be some code to extract the phys-encoded offset
using prom_n_addr_cells(). However, according to a comment
on earlier versions, it's always zero, so we don't bother */
offset = dma_window[1] >> PAGE_SHIFT;
/* TCE table size - measured in tce entries */
newTceTable->it_size = dma_window[4] >> PAGE_SHIFT;
/* offset for VIO should always be 0 */
newTceTable->it_offset = offset;
newTceTable->it_busno = 0;
newTceTable->it_index = (unsigned long)dma_window[0];
newTceTable->it_type = TCE_VB;
return iommu_init_table(newTceTable);
}
/**
* vio_register_device_node: - Register a new vio device.
* @of_node: The OF node for this device.
*
* Creates and initializes a vio_dev structure from the data in
* of_node (dev.platform_data) and adds it to the list of virtual devices.
* Returns a pointer to the created vio_dev or NULL if node has
* NULL device_type or compatible fields.
*/
struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node)
{
struct vio_dev *viodev;
unsigned int *unit_address;
unsigned int *irq_p;
/* we need the 'device_type' property, in order to match with drivers */
if ((NULL == of_node->type)) {
printk(KERN_WARNING
"%s: node %s missing 'device_type'\n", __FUNCTION__,
of_node->name ? of_node->name : "<unknown>");
return NULL;
}
unit_address = (unsigned int *)get_property(of_node, "reg", NULL);
if (!unit_address) {
printk(KERN_WARNING "%s: node %s missing 'reg'\n", __FUNCTION__,
of_node->name ? of_node->name : "<unknown>");
return NULL;
}
/* allocate a vio_dev for this node */
viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);
if (!viodev) {
return NULL;
}
memset(viodev, 0, sizeof(struct vio_dev));
viodev->dev.platform_data = of_node_get(of_node);
viodev->irq = NO_IRQ;
irq_p = (unsigned int *)get_property(of_node, "interrupts", NULL);
if (irq_p) {
int virq = virt_irq_create_mapping(*irq_p);
if (virq == NO_IRQ) {
printk(KERN_ERR "Unable to allocate interrupt "
"number for %s\n", of_node->full_name);
} else
viodev->irq = irq_offset_up(virq);
}
snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%x", *unit_address);
/* register with generic device framework */
if (vio_register_device_common(viodev, of_node->name, of_node->type,
*unit_address, vio_build_iommu_table(viodev))
== NULL) {
/* XXX free TCE table */
kfree(viodev);
return NULL;
}
device_create_file(&viodev->dev, &dev_attr_devspec);
return viodev;
}
EXPORT_SYMBOL(vio_register_device_node);
/**
* vio_get_attribute: - get attribute for virtual device
* @vdev: The vio device to get property.
* @which: The property/attribute to be extracted.
* @length: Pointer to length of returned data size (unused if NULL).
*
* Calls prom.c's get_property() to return the value of the
* attribute specified by the preprocessor constant @which
*/
const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length)
{
return get_property(vdev->dev.platform_data, (char*)which, length);
}
EXPORT_SYMBOL(vio_get_attribute);
/* vio_find_name() - internal because only vio.c knows how we formatted the
* kobject name
* XXX once vio_bus_type.devices is actually used as a kset in
* drivers/base/bus.c, this function should be removed in favor of
* "device_find(kobj_name, &vio_bus_type)"
*/
static struct vio_dev *vio_find_name(const char *kobj_name)
{
struct kobject *found;
found = kset_find_obj(&devices_subsys.kset, kobj_name);
if (!found)
return NULL;
return to_vio_dev(container_of(found, struct device, kobj));
}
/**
* vio_find_node - find an already-registered vio_dev
* @vnode: device_node of the virtual device we're looking for
*/
struct vio_dev *vio_find_node(struct device_node *vnode)
{
uint32_t *unit_address;
char kobj_name[BUS_ID_SIZE];
/* construct the kobject name from the device node */
unit_address = (uint32_t *)get_property(vnode, "reg", NULL);
if (!unit_address)
return NULL;
snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address);
return vio_find_name(kobj_name);
}
EXPORT_SYMBOL(vio_find_node);
int vio_enable_interrupts(struct vio_dev *dev)
{
int rc = h_vio_signal(dev->unit_address, VIO_IRQ_ENABLE);
if (rc != H_Success)
printk(KERN_ERR "vio: Error 0x%x enabling interrupts\n", rc);
return rc;
}
EXPORT_SYMBOL(vio_enable_interrupts);
int vio_disable_interrupts(struct vio_dev *dev)
{
int rc = h_vio_signal(dev->unit_address, VIO_IRQ_DISABLE);
if (rc != H_Success)
printk(KERN_ERR "vio: Error 0x%x disabling interrupts\n", rc);
return rc;
}
EXPORT_SYMBOL(vio_disable_interrupts);

4
arch/ppc64/kernel/pacaData.c
View File

@ -78,7 +78,7 @@ extern unsigned long __toc_start;
#define BOOTCPU_PACA_INIT(number) \
{ \
PACA_INIT_COMMON(number, 1, 0, STAB0_VIRT_ADDR) \
PACA_INIT_COMMON(number, 1, 0, (u64)&initial_stab) \
PACA_INIT_ISERIES(number) \
}
@ -90,7 +90,7 @@ extern unsigned long __toc_start;
#define BOOTCPU_PACA_INIT(number) \
{ \
PACA_INIT_COMMON(number, 1, STAB0_PHYS_ADDR, STAB0_VIRT_ADDR) \
PACA_INIT_COMMON(number, 1, STAB0_PHYS_ADDR, (u64)&initial_stab) \
}
#endif

2
arch/ppc64/kernel/pmac_setup.c
View File

@ -71,6 +71,7 @@
#include <asm/of_device.h>
#include <asm/lmb.h>
#include <asm/smu.h>
#include <asm/pmc.h>
#include "pmac.h"
#include "mpic.h"
@ -511,4 +512,5 @@ struct machdep_calls __initdata pmac_md = {
.progress = pmac_progress,
.check_legacy_ioport = pmac_check_legacy_ioport,
.idle_loop = native_idle,
.enable_pmcs = power4_enable_pmcs,
};

21
arch/ppc64/kernel/pmc.c
View File

@ -65,3 +65,24 @@ void release_pmc_hardware(void)
spin_unlock(&pmc_owner_lock);
}
EXPORT_SYMBOL_GPL(release_pmc_hardware);
void power4_enable_pmcs(void)
{
unsigned long hid0;
hid0 = mfspr(HID0);
hid0 |= 1UL << (63 - 20);
/* POWER4 requires the following sequence */
asm volatile(
"sync\n"
"mtspr %1, %0\n"
"mfspr %0, %1\n"
"mfspr %0, %1\n"
"mfspr %0, %1\n"
"mfspr %0, %1\n"
"mfspr %0, %1\n"
"mfspr %0, %1\n"
"isync" : "=&r" (hid0) : "i" (HID0), "0" (hid0):
"memory");
}

12
arch/ppc64/kernel/process.c
View File

@ -50,6 +50,7 @@
#include <asm/machdep.h>
#include <asm/iSeries/HvCallHpt.h>
#include <asm/cputable.h>
#include <asm/firmware.h>
#include <asm/sections.h>
#include <asm/tlbflush.h>
#include <asm/time.h>
@ -202,11 +203,10 @@ struct task_struct *__switch_to(struct task_struct *prev,
new_thread = &new->thread;
old_thread = &current->thread;
/* Collect purr utilization data per process and per processor wise */
/* purr is nothing but processor time base */
#if defined(CONFIG_PPC_PSERIES)
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
/* Collect purr utilization data per process and per processor
* wise purr is nothing but processor time base
*/
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
struct cpu_usage *cu = &__get_cpu_var(cpu_usage_array);
long unsigned start_tb, current_tb;
start_tb = old_thread->start_tb;
@ -214,8 +214,6 @@ struct task_struct *__switch_to(struct task_struct *prev,
old_thread->accum_tb += (current_tb - start_tb);
new_thread->start_tb = current_tb;
}
#endif
local_irq_save(flags);
last = _switch(old_thread, new_thread);

184
arch/ppc64/kernel/prom.c
View File

@ -625,8 +625,8 @@ void __init finish_device_tree(void)
static inline char *find_flat_dt_string(u32 offset)
{
return ((char *)initial_boot_params) + initial_boot_params->off_dt_strings
+ offset;
return ((char *)initial_boot_params) +
initial_boot_params->off_dt_strings + offset;
}
/**
@ -635,26 +635,33 @@ static inline char *find_flat_dt_string(u32 offset)
* unflatten the tree
*/
static int __init scan_flat_dt(int (*it)(unsigned long node,
const char *full_path, void *data),
const char *uname, int depth,
void *data),
void *data)
{
unsigned long p = ((unsigned long)initial_boot_params) +
initial_boot_params->off_dt_struct;
int rc = 0;
int depth = -1;
do {
u32 tag = *((u32 *)p);
char *pathp;
p += 4;
if (tag == OF_DT_END_NODE)
if (tag == OF_DT_END_NODE) {
depth --;
continue;
}
if (tag == OF_DT_NOP)
continue;
if (tag == OF_DT_END)
break;
if (tag == OF_DT_PROP) {
u32 sz = *((u32 *)p);
p += 8;
p = _ALIGN(p, sz >= 8 ? 8 : 4);
if (initial_boot_params->version < 0x10)
p = _ALIGN(p, sz >= 8 ? 8 : 4);
p += sz;
p = _ALIGN(p, 4);
continue;
@ -664,9 +671,18 @@ static int __init scan_flat_dt(int (*it)(unsigned long node,
" device tree !\n", tag);
return -EINVAL;
}
depth++;
pathp = (char *)p;
p = _ALIGN(p + strlen(pathp) + 1, 4);
rc = it(p, pathp, data);
if ((*pathp) == '/') {
char *lp, *np;
for (lp = NULL, np = pathp; *np; np++)
if ((*np) == '/')
lp = np+1;
if (lp != NULL)
pathp = lp;
}
rc = it(p, pathp, depth, data);
if (rc != 0)
break;
} while(1);
@ -689,17 +705,21 @@ static void* __init get_flat_dt_prop(unsigned long node, const char *name,
const char *nstr;
p += 4;
if (tag == OF_DT_NOP)
continue;
if (tag != OF_DT_PROP)
return NULL;
sz = *((u32 *)p);
noff = *((u32 *)(p + 4));
p += 8;
p = _ALIGN(p, sz >= 8 ? 8 : 4);
if (initial_boot_params->version < 0x10)
p = _ALIGN(p, sz >= 8 ? 8 : 4);
nstr = find_flat_dt_string(noff);
if (nstr == NULL) {
printk(KERN_WARNING "Can't find property index name !\n");
printk(KERN_WARNING "Can't find property index"
" name !\n");
return NULL;
}
if (strcmp(name, nstr) == 0) {
@ -713,7 +733,7 @@ static void* __init get_flat_dt_prop(unsigned long node, const char *name,
}
static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
unsigned long align)
unsigned long align)
{
void *res;
@ -727,13 +747,16 @@ static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
static unsigned long __init unflatten_dt_node(unsigned long mem,
unsigned long *p,
struct device_node *dad,
struct device_node ***allnextpp)
struct device_node ***allnextpp,
unsigned long fpsize)
{
struct device_node *np;
struct property *pp, **prev_pp = NULL;
char *pathp;
u32 tag;
unsigned int l;
unsigned int l, allocl;
int has_name = 0;
int new_format = 0;
tag = *((u32 *)(*p));
if (tag != OF_DT_BEGIN_NODE) {
@ -742,21 +765,62 @@ static unsigned long __init unflatten_dt_node(unsigned long mem,
}
*p += 4;
pathp = (char *)*p;
l = strlen(pathp) + 1;
l = allocl = strlen(pathp) + 1;
*p = _ALIGN(*p + l, 4);
np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + l,
/* version 0x10 has a more compact unit name here instead of the full
* path. we accumulate the full path size using "fpsize", we'll rebuild
* it later. We detect this because the first character of the name is
* not '/'.
*/
if ((*pathp) != '/') {
new_format = 1;
if (fpsize == 0) {
/* root node: special case. fpsize accounts for path
* plus terminating zero. root node only has '/', so
* fpsize should be 2, but we want to avoid the first
* level nodes to have two '/' so we use fpsize 1 here
*/
fpsize = 1;
allocl = 2;
} else {
/* account for '/' and path size minus terminal 0
* already in 'l'
*/
fpsize += l;
allocl = fpsize;
}
}
np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
__alignof__(struct device_node));
if (allnextpp) {
memset(np, 0, sizeof(*np));
np->full_name = ((char*)np) + sizeof(struct device_node);
memcpy(np->full_name, pathp, l);
if (new_format) {
char *p = np->full_name;
/* rebuild full path for new format */
if (dad && dad->parent) {
strcpy(p, dad->full_name);
#ifdef DEBUG
if ((strlen(p) + l + 1) != allocl) {
DBG("%s: p: %d, l: %d, a: %d\n",
pathp, strlen(p), l, allocl);
}
#endif
p += strlen(p);
}
*(p++) = '/';
memcpy(p, pathp, l);
} else
memcpy(np->full_name, pathp, l);
prev_pp = &np->properties;
**allnextpp = np;
*allnextpp = &np->allnext;
if (dad != NULL) {
np->parent = dad;
/* we temporarily use the `next' field as `last_child'. */
/* we temporarily use the next field as `last_child'*/
if (dad->next == 0)
dad->child = np;
else
@ -770,18 +834,26 @@ static unsigned long __init unflatten_dt_node(unsigned long mem,
char *pname;
tag = *((u32 *)(*p));
if (tag == OF_DT_NOP) {
*p += 4;
continue;
}
if (tag != OF_DT_PROP)
break;
*p += 4;
sz = *((u32 *)(*p));
noff = *((u32 *)((*p) + 4));
*p = _ALIGN((*p) + 8, sz >= 8 ? 8 : 4);
*p += 8;
if (initial_boot_params->version < 0x10)
*p = _ALIGN(*p, sz >= 8 ? 8 : 4);
pname = find_flat_dt_string(noff);
if (pname == NULL) {
printk("Can't find property name in list !\n");
break;
}
if (strcmp(pname, "name") == 0)
has_name = 1;
l = strlen(pname) + 1;
pp = unflatten_dt_alloc(&mem, sizeof(struct property),
__alignof__(struct property));
@ -801,6 +873,36 @@ static unsigned long __init unflatten_dt_node(unsigned long mem,
}
*p = _ALIGN((*p) + sz, 4);
}
/* with version 0x10 we may not have the name property, recreate
* it here from the unit name if absent
*/
if (!has_name) {
char *p = pathp, *ps = pathp, *pa = NULL;
int sz;
while (*p) {
if ((*p) == '@')
pa = p;
if ((*p) == '/')
ps = p + 1;
p++;
}
if (pa < ps)
pa = p;
sz = (pa - ps) + 1;
pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
__alignof__(struct property));
if (allnextpp) {
pp->name = "name";
pp->length = sz;
pp->value = (unsigned char *)(pp + 1);
*prev_pp = pp;
prev_pp = &pp->next;
memcpy(pp->value, ps, sz - 1);
((char *)pp->value)[sz - 1] = 0;
DBG("fixed up name for %s -> %s\n", pathp, pp->value);
}
}
if (allnextpp) {
*prev_pp = NULL;
np->name = get_property(np, "name", NULL);
@ -812,11 +914,11 @@ static unsigned long __init unflatten_dt_node(unsigned long mem,
np->type = "<NULL>";
}
while (tag == OF_DT_BEGIN_NODE) {
mem = unflatten_dt_node(mem, p, np, allnextpp);
mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
tag = *((u32 *)(*p));
}
if (tag != OF_DT_END_NODE) {
printk("Weird tag at start of node: %x\n", tag);
printk("Weird tag at end of node: %x\n", tag);
return mem;
}
*p += 4;
@ -842,21 +944,32 @@ void __init unflatten_device_tree(void)
/* First pass, scan for size */
start = ((unsigned long)initial_boot_params) +
initial_boot_params->off_dt_struct;
size = unflatten_dt_node(0, &start, NULL, NULL);
size = unflatten_dt_node(0, &start, NULL, NULL, 0);
size = (size | 3) + 1;
DBG(" size is %lx, allocating...\n", size);
/* Allocate memory for the expanded device tree */
mem = (unsigned long)abs_to_virt(lmb_alloc(size,
__alignof__(struct device_node)));
mem = lmb_alloc(size + 4, __alignof__(struct device_node));
if (!mem) {
DBG("Couldn't allocate memory with lmb_alloc()!\n");
panic("Couldn't allocate memory with lmb_alloc()!\n");
}
mem = (unsigned long)abs_to_virt(mem);
((u32 *)mem)[size / 4] = 0xdeadbeef;
DBG(" unflattening...\n", mem);
/* Second pass, do actual unflattening */
start = ((unsigned long)initial_boot_params) +
initial_boot_params->off_dt_struct;
unflatten_dt_node(mem, &start, NULL, &allnextp);
unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
if (*((u32 *)start) != OF_DT_END)
printk(KERN_WARNING "Weird tag at end of tree: %x\n", *((u32 *)start));
printk(KERN_WARNING "Weird tag at end of tree: %08x\n", *((u32 *)start));
if (((u32 *)mem)[size / 4] != 0xdeadbeef)
printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
((u32 *)mem)[size / 4] );
*allnextp = NULL;
/* Get pointer to OF "/chosen" node for use everywhere */
@ -880,7 +993,7 @@ void __init unflatten_device_tree(void)
static int __init early_init_dt_scan_cpus(unsigned long node,
const char *full_path, void *data)
const char *uname, int depth, void *data)
{
char *type = get_flat_dt_prop(node, "device_type", NULL);
u32 *prop;
@ -947,13 +1060,15 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
}
static int __init early_init_dt_scan_chosen(unsigned long node,
const char *full_path, void *data)
const char *uname, int depth, void *data)
{
u32 *prop;
u64 *prop64;
extern unsigned long memory_limit, tce_alloc_start, tce_alloc_end;
if (strcmp(full_path, "/chosen") != 0)
DBG("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
if (depth != 1 || strcmp(uname, "chosen") != 0)
return 0;
/* get platform type */
@ -1003,18 +1118,20 @@ static int __init early_init_dt_scan_chosen(unsigned long node,
}
static int __init early_init_dt_scan_root(unsigned long node,
const char *full_path, void *data)
const char *uname, int depth, void *data)
{
u32 *prop;
if (strcmp(full_path, "/") != 0)
if (depth != 0)
return 0;
prop = (u32 *)get_flat_dt_prop(node, "#size-cells", NULL);
dt_root_size_cells = (prop == NULL) ? 1 : *prop;
DBG("dt_root_size_cells = %x\n", dt_root_size_cells);
prop = (u32 *)get_flat_dt_prop(node, "#address-cells", NULL);
dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
DBG("dt_root_addr_cells = %x\n", dt_root_addr_cells);
/* break now */
return 1;
@ -1042,7 +1159,7 @@ static unsigned long __init dt_mem_next_cell(int s, cell_t **cellp)
static int __init early_init_dt_scan_memory(unsigned long node,
const char *full_path, void *data)
const char *uname, int depth, void *data)
{
char *type = get_flat_dt_prop(node, "device_type", NULL);
cell_t *reg, *endp;
@ -1058,7 +1175,9 @@ static int __init early_init_dt_scan_memory(unsigned long node,
endp = reg + (l / sizeof(cell_t));
DBG("memory scan node %s ...\n", full_path);
DBG("memory scan node %s ..., reg size %ld, data: %x %x %x %x, ...\n",
uname, l, reg[0], reg[1], reg[2], reg[3]);
while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
unsigned long base, size;
@ -1469,10 +1588,11 @@ struct device_node *of_find_node_by_path(const char *path)
struct device_node *np = allnodes;
read_lock(&devtree_lock);
for (; np != 0; np = np->allnext)
for (; np != 0; np = np->allnext) {
if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0
&& of_node_get(np))
break;
}
read_unlock(&devtree_lock);
return np;
}

88
arch/ppc64/kernel/prom_init.c
View File

@ -1534,7 +1534,8 @@ static unsigned long __init dt_find_string(char *str)
*/
#define MAX_PROPERTY_NAME 64
static void __init scan_dt_build_strings(phandle node, unsigned long *mem_start,
static void __init scan_dt_build_strings(phandle node,
unsigned long *mem_start,
unsigned long *mem_end)
{
unsigned long offset = reloc_offset();
@ -1547,16 +1548,21 @@ static void __init scan_dt_build_strings(phandle node, unsigned long *mem_start,
/* get and store all property names */
prev_name = RELOC("");
for (;;) {
int rc;
/* 64 is max len of name including nul. */
namep = make_room(mem_start, mem_end, MAX_PROPERTY_NAME, 1);
rc = call_prom("nextprop", 3, 1, node, prev_name, namep);
if (rc != 1) {
if (call_prom("nextprop", 3, 1, node, prev_name, namep) != 1) {
/* No more nodes: unwind alloc */
*mem_start = (unsigned long)namep;
break;
}
/* skip "name" */
if (strcmp(namep, RELOC("name")) == 0) {
*mem_start = (unsigned long)namep;
prev_name = RELOC("name");
continue;
}
/* get/create string entry */
soff = dt_find_string(namep);
if (soff != 0) {
*mem_start = (unsigned long)namep;
@ -1571,7 +1577,7 @@ static void __init scan_dt_build_strings(phandle node, unsigned long *mem_start,
/* do all our children */
child = call_prom("child", 1, 1, node);
while (child != (phandle)0) {
while (child != 0) {
scan_dt_build_strings(child, mem_start, mem_end);
child = call_prom("peer", 1, 1, child);
}
@ -1580,16 +1586,13 @@ static void __init scan_dt_build_strings(phandle node, unsigned long *mem_start,
static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
unsigned long *mem_end)
{
int l, align;
phandle child;
char *namep, *prev_name, *sstart, *p, *ep;
char *namep, *prev_name, *sstart, *p, *ep, *lp, *path;
unsigned long soff;
unsigned char *valp;
unsigned long offset = reloc_offset();
char pname[MAX_PROPERTY_NAME];
char *path;
path = RELOC(prom_scratch);
static char pname[MAX_PROPERTY_NAME];
int l;
dt_push_token(OF_DT_BEGIN_NODE, mem_start, mem_end);
@ -1599,23 +1602,33 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
namep, *mem_end - *mem_start);
if (l >= 0) {
/* Didn't fit? Get more room. */
if (l+1 > *mem_end - *mem_start) {
if ((l+1) > (*mem_end - *mem_start)) {
namep = make_room(mem_start, mem_end, l+1, 1);
call_prom("package-to-path", 3, 1, node, namep, l);
}
namep[l] = '\0';
/* Fixup an Apple bug where they have bogus \0 chars in the
* middle of the path in some properties
*/
for (p = namep, ep = namep + l; p < ep; p++)
if (*p == '\0') {
memmove(p, p+1, ep - p);
ep--; l--;
ep--; l--; p--;
}
*mem_start = _ALIGN(((unsigned long) namep) + strlen(namep) + 1, 4);
/* now try to extract the unit name in that mess */
for (p = namep, lp = NULL; *p; p++)
if (*p == '/')
lp = p + 1;
if (lp != NULL)
memmove(namep, lp, strlen(lp) + 1);
*mem_start = _ALIGN(((unsigned long) namep) +
strlen(namep) + 1, 4);
}
/* get it again for debugging */
path = RELOC(prom_scratch);
memset(path, 0, PROM_SCRATCH_SIZE);
call_prom("package-to-path", 3, 1, node, path, PROM_SCRATCH_SIZE-1);
@ -1623,23 +1636,27 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
prev_name = RELOC("");
sstart = (char *)RELOC(dt_string_start);
for (;;) {
int rc;
rc = call_prom("nextprop", 3, 1, node, prev_name, pname);
if (rc != 1)
if (call_prom("nextprop", 3, 1, node, prev_name,
RELOC(pname)) != 1)
break;
/* skip "name" */
if (strcmp(RELOC(pname), RELOC("name")) == 0) {
prev_name = RELOC("name");
continue;
}
/* find string offset */
soff = dt_find_string(pname);
soff = dt_find_string(RELOC(pname));
if (soff == 0) {
prom_printf("WARNING: Can't find string index for <%s>, node %s\n",
pname, path);
prom_printf("WARNING: Can't find string index for"
" <%s>, node %s\n", RELOC(pname), path);
break;
}
prev_name = sstart + soff;
/* get length */
l = call_prom("getproplen", 2, 1, node, pname);
l = call_prom("getproplen", 2, 1, node, RELOC(pname));
/* sanity checks */
if (l == PROM_ERROR)
@ -1648,7 +1665,7 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
prom_printf("WARNING: ignoring large property ");
/* It seems OF doesn't null-terminate the path :-( */
prom_printf("[%s] ", path);
prom_printf("%s length 0x%x\n", pname, l);
prom_printf("%s length 0x%x\n", RELOC(pname), l);
continue;
}
@ -1658,17 +1675,16 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
dt_push_token(soff, mem_start, mem_end);
/* push property content */
align = (l >= 8) ? 8 : 4;
valp = make_room(mem_start, mem_end, l, align);
call_prom("getprop", 4, 1, node, pname, valp, l);
valp = make_room(mem_start, mem_end, l, 4);
call_prom("getprop", 4, 1, node, RELOC(pname), valp, l);
*mem_start = _ALIGN(*mem_start, 4);
}
/* Add a "linux,phandle" property. */
soff = dt_find_string(RELOC("linux,phandle"));
if (soff == 0)
prom_printf("WARNING: Can't find string index for <linux-phandle>"
" node %s\n", path);
prom_printf("WARNING: Can't find string index for"
" <linux-phandle> node %s\n", path);
else {
dt_push_token(OF_DT_PROP, mem_start, mem_end);
dt_push_token(4, mem_start, mem_end);
@ -1679,7 +1695,7 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
/* do all our children */
child = call_prom("child", 1, 1, node);
while (child != (phandle)0) {
while (child != 0) {
scan_dt_build_struct(child, mem_start, mem_end);
child = call_prom("peer", 1, 1, child);
}
@ -1718,7 +1734,8 @@ static void __init flatten_device_tree(void)
/* Build header and make room for mem rsv map */
mem_start = _ALIGN(mem_start, 4);
hdr = make_room(&mem_start, &mem_end, sizeof(struct boot_param_header), 4);
hdr = make_room(&mem_start, &mem_end,
sizeof(struct boot_param_header), 4);
RELOC(dt_header_start) = (unsigned long)hdr;
rsvmap = make_room(&mem_start, &mem_end, sizeof(mem_reserve_map), 8);
@ -1731,11 +1748,11 @@ static void __init flatten_device_tree(void)
namep = make_room(&mem_start, &mem_end, 16, 1);
strcpy(namep, RELOC("linux,phandle"));
mem_start = (unsigned long)namep + strlen(namep) + 1;
RELOC(dt_string_end) = mem_start;
/* Build string array */
prom_printf("Building dt strings...\n");
scan_dt_build_strings(root, &mem_start, &mem_end);
RELOC(dt_string_end) = mem_start;
/* Build structure */
mem_start = PAGE_ALIGN(mem_start);
@ -1750,9 +1767,11 @@ static void __init flatten_device_tree(void)
hdr->totalsize = RELOC(dt_struct_end) - RELOC(dt_header_start);
hdr->off_dt_struct = RELOC(dt_struct_start) - RELOC(dt_header_start);
hdr->off_dt_strings = RELOC(dt_string_start) - RELOC(dt_header_start);
hdr->dt_strings_size = RELOC(dt_string_end) - RELOC(dt_string_start);
hdr->off_mem_rsvmap = ((unsigned long)rsvmap) - RELOC(dt_header_start);
hdr->version = OF_DT_VERSION;
hdr->last_comp_version = 1;
/* Version 16 is not backward compatible */
hdr->last_comp_version = 0x10;
/* Reserve the whole thing and copy the reserve map in, we
* also bump mem_reserve_cnt to cause further reservations to
@ -1808,6 +1827,9 @@ static void __init fixup_device_tree(void)
/* does it need fixup ? */
if (prom_getproplen(i2c, "interrupts") > 0)
return;
prom_printf("fixing up bogus interrupts for u3 i2c...\n");
/* interrupt on this revision of u3 is number 0 and level */
interrupts[0] = 0;
interrupts[1] = 1;

19
arch/ppc64/kernel/rtas_pci.c
View File

@ -58,6 +58,21 @@ static int config_access_valid(struct device_node *dn, int where)
return 0;
}
static int of_device_available(struct device_node * dn)
{
char * status;
status = get_property(dn, "status", NULL);
if (!status)
return 1;
if (!strcmp(status, "okay"))
return 1;
return 0;
}
static int rtas_read_config(struct device_node *dn, int where, int size, u32 *val)
{
int returnval = -1;
@ -103,7 +118,7 @@ static int rtas_pci_read_config(struct pci_bus *bus,
/* Search only direct children of the bus */
for (dn = busdn->child; dn; dn = dn->sibling)
if (dn->devfn == devfn)
if (dn->devfn == devfn && of_device_available(dn))
return rtas_read_config(dn, where, size, val);
return PCIBIOS_DEVICE_NOT_FOUND;
}
@ -146,7 +161,7 @@ static int rtas_pci_write_config(struct pci_bus *bus,
/* Search only direct children of the bus */
for (dn = busdn->child; dn; dn = dn->sibling)
if (dn->devfn == devfn)
if (dn->devfn == devfn && of_device_available(dn))
return rtas_write_config(dn, where, size, val);
return PCIBIOS_DEVICE_NOT_FOUND;
}

28
arch/ppc64/kernel/setup.c
View File

@ -536,15 +536,19 @@ static void __init check_for_initrd(void)
DBG(" -> check_for_initrd()\n");
prop = (u64 *)get_property(of_chosen, "linux,initrd-start", NULL);
if (prop != NULL) {
initrd_start = (unsigned long)__va(*prop);
prop = (u64 *)get_property(of_chosen, "linux,initrd-end", NULL);
if (of_chosen) {
prop = (u64 *)get_property(of_chosen,
"linux,initrd-start", NULL);
if (prop != NULL) {
initrd_end = (unsigned long)__va(*prop);
initrd_below_start_ok = 1;
} else
initrd_start = 0;
initrd_start = (unsigned long)__va(*prop);
prop = (u64 *)get_property(of_chosen,
"linux,initrd-end", NULL);
if (prop != NULL) {
initrd_end = (unsigned long)__va(*prop);
initrd_below_start_ok = 1;
} else
initrd_start = 0;
}
}
/* If we were passed an initrd, set the ROOT_DEV properly if the values
@ -627,7 +631,7 @@ void __init setup_system(void)
* Initialize xmon
*/
#ifdef CONFIG_XMON_DEFAULT
xmon_init();
xmon_init(1);
#endif
/*
* Register early console
@ -1343,11 +1347,13 @@ static int __init early_xmon(char *p)
/* ensure xmon is enabled */
if (p) {
if (strncmp(p, "on", 2) == 0)
xmon_init();
xmon_init(1);
if (strncmp(p, "off", 3) == 0)
xmon_init(0);
if (strncmp(p, "early", 5) != 0)
return 0;
}
xmon_init();
xmon_init(1);
debugger(NULL);
return 0;

57
arch/ppc64/kernel/sysfs.c
View File

@ -13,6 +13,7 @@
#include <asm/current.h>
#include <asm/processor.h>
#include <asm/cputable.h>
#include <asm/firmware.h>
#include <asm/hvcall.h>
#include <asm/prom.h>
#include <asm/systemcfg.h>
@ -100,6 +101,8 @@ static int __init setup_smt_snooze_delay(char *str)
}
__setup("smt-snooze-delay=", setup_smt_snooze_delay);
#endif /* CONFIG_PPC_MULTIPLATFORM */
/*
* Enabling PMCs will slow partition context switch times so we only do
* it the first time we write to the PMCs.
@ -109,65 +112,15 @@ static DEFINE_PER_CPU(char, pmcs_enabled);
void ppc64_enable_pmcs(void)
{
unsigned long hid0;
#ifdef CONFIG_PPC_PSERIES
unsigned long set, reset;
#endif /* CONFIG_PPC_PSERIES */
/* Only need to enable them once */
if (__get_cpu_var(pmcs_enabled))
return;
__get_cpu_var(pmcs_enabled) = 1;
switch (systemcfg->platform) {
case PLATFORM_PSERIES:
case PLATFORM_POWERMAC:
hid0 = mfspr(HID0);
hid0 |= 1UL << (63 - 20);
/* POWER4 requires the following sequence */
asm volatile(
"sync\n"
"mtspr %1, %0\n"
"mfspr %0, %1\n"
"mfspr %0, %1\n"
"mfspr %0, %1\n"
"mfspr %0, %1\n"
"mfspr %0, %1\n"
"mfspr %0, %1\n"
"isync" : "=&r" (hid0) : "i" (HID0), "0" (hid0):
"memory");
break;
#ifdef CONFIG_PPC_PSERIES
case PLATFORM_PSERIES_LPAR:
set = 1UL << 63;
reset = 0;
plpar_hcall_norets(H_PERFMON, set, reset);
break;
#endif /* CONFIG_PPC_PSERIES */
default:
break;
}
#ifdef CONFIG_PPC_PSERIES
/* instruct hypervisor to maintain PMCs */
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR)
get_paca()->lppaca.pmcregs_in_use = 1;
#endif /* CONFIG_PPC_PSERIES */
if (ppc_md.enable_pmcs)
ppc_md.enable_pmcs();
}
#else
/* PMC stuff */
void ppc64_enable_pmcs(void)
{
/* XXX Implement for iseries */
}
#endif /* CONFIG_PPC_MULTIPLATFORM */
EXPORT_SYMBOL(ppc64_enable_pmcs);
/* XXX convert to rusty's on_one_cpu */

7
arch/ppc64/kernel/time.c
View File

@ -67,6 +67,7 @@
#include <asm/prom.h>
#include <asm/sections.h>
#include <asm/systemcfg.h>
#include <asm/firmware.h>
u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
@ -370,13 +371,11 @@ int timer_interrupt(struct pt_regs * regs)
process_hvlpevents(regs);
#endif
/* collect purr register values often, for accurate calculations */
#if defined(CONFIG_PPC_PSERIES)
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
/* collect purr register values often, for accurate calculations */
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
struct cpu_usage *cu = &__get_cpu_var(cpu_usage_array);
cu->current_tb = mfspr(SPRN_PURR);
}
#endif
irq_exit();

407
arch/ppc64/kernel/vio.c
View File

@ -1,10 +1,11 @@
/*
* IBM PowerPC Virtual I/O Infrastructure Support.
*
* Copyright (c) 2003 IBM Corp.
* Copyright (c) 2003-2005 IBM Corp.
* Dave Engebretsen engebret@us.ibm.com
* Santiago Leon santil@us.ibm.com
* Hollis Blanchard <hollisb@us.ibm.com>
* Stephen Rothwell
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -14,57 +15,27 @@
#include <linux/init.h>
#include <linux/console.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/kobject.h>
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <asm/rtas.h>
#include <asm/iommu.h>
#include <asm/dma.h>
#include <asm/ppcdebug.h>
#include <asm/vio.h>
#include <asm/hvcall.h>
#include <asm/iSeries/vio.h>
#include <asm/iSeries/HvTypes.h>
#include <asm/iSeries/HvCallXm.h>
#include <asm/iSeries/HvLpConfig.h>
#define DBGENTER() pr_debug("%s entered\n", __FUNCTION__)
extern struct subsystem devices_subsys; /* needed for vio_find_name() */
static const struct vio_device_id *vio_match_device(
const struct vio_device_id *, const struct vio_dev *);
#ifdef CONFIG_PPC_PSERIES
static struct iommu_table *vio_build_iommu_table(struct vio_dev *);
static int vio_num_address_cells;
#endif
#ifdef CONFIG_PPC_ISERIES
static struct iommu_table veth_iommu_table;
static struct iommu_table vio_iommu_table;
#endif
static struct vio_dev vio_bus_device = { /* fake "parent" device */
struct vio_dev vio_bus_device = { /* fake "parent" device */
.name = vio_bus_device.dev.bus_id,
.type = "",
#ifdef CONFIG_PPC_ISERIES
.iommu_table = &vio_iommu_table,
#endif
.dev.bus_id = "vio",
.dev.bus = &vio_bus_type,
};
#ifdef CONFIG_PPC_ISERIES
static struct vio_dev *__init vio_register_device_iseries(char *type,
uint32_t unit_num);
struct device *iSeries_vio_dev = &vio_bus_device.dev;
EXPORT_SYMBOL(iSeries_vio_dev);
#define device_is_compatible(a, b) 1
#endif
static int (*is_match)(const struct vio_device_id *id,
const struct vio_dev *dev);
static void (*unregister_device_callback)(struct vio_dev *dev);
static void (*release_device_callback)(struct device *dev);
/* convert from struct device to struct vio_dev and pass to driver.
* dev->driver has already been set by generic code because vio_bus_match
@ -76,8 +47,6 @@ static int vio_bus_probe(struct device *dev)
const struct vio_device_id *id;
int error = -ENODEV;
DBGENTER();
if (!viodrv->probe)
return error;
@ -95,8 +64,6 @@ static int vio_bus_remove(struct device *dev)
struct vio_dev *viodev = to_vio_dev(dev);
struct vio_driver *viodrv = to_vio_driver(dev->driver);
DBGENTER();
if (viodrv->remove) {
return viodrv->remove(viodev);
}
@ -146,178 +113,65 @@ EXPORT_SYMBOL(vio_unregister_driver);
static const struct vio_device_id * vio_match_device(const struct vio_device_id *ids,
const struct vio_dev *dev)
{
DBGENTER();
while (ids->type) {
if ((strncmp(dev->type, ids->type, strlen(ids->type)) == 0) &&
device_is_compatible(dev->dev.platform_data, ids->compat))
if (is_match(ids, dev))
return ids;
ids++;
}
return NULL;
}
#ifdef CONFIG_PPC_ISERIES
void __init iommu_vio_init(void)
{
struct iommu_table *t;
struct iommu_table_cb cb;
unsigned long cbp;
unsigned long itc_entries;
cb.itc_busno = 255; /* Bus 255 is the virtual bus */
cb.itc_virtbus = 0xff; /* Ask for virtual bus */
cbp = virt_to_abs(&cb);
HvCallXm_getTceTableParms(cbp);
itc_entries = cb.itc_size * PAGE_SIZE / sizeof(union tce_entry);
veth_iommu_table.it_size = itc_entries / 2;
veth_iommu_table.it_busno = cb.itc_busno;
veth_iommu_table.it_offset = cb.itc_offset;
veth_iommu_table.it_index = cb.itc_index;
veth_iommu_table.it_type = TCE_VB;
veth_iommu_table.it_blocksize = 1;
t = iommu_init_table(&veth_iommu_table);
if (!t)
printk("Virtual Bus VETH TCE table failed.\n");
vio_iommu_table.it_size = itc_entries - veth_iommu_table.it_size;
vio_iommu_table.it_busno = cb.itc_busno;
vio_iommu_table.it_offset = cb.itc_offset +
veth_iommu_table.it_size;
vio_iommu_table.it_index = cb.itc_index;
vio_iommu_table.it_type = TCE_VB;
vio_iommu_table.it_blocksize = 1;
t = iommu_init_table(&vio_iommu_table);
if (!t)
printk("Virtual Bus VIO TCE table failed.\n");
}
#endif
#ifdef CONFIG_PPC_PSERIES
static void probe_bus_pseries(void)
{
struct device_node *node_vroot, *of_node;
node_vroot = find_devices("vdevice");
if ((node_vroot == NULL) || (node_vroot->child == NULL))
/* this machine doesn't do virtual IO, and that's ok */
return;
vio_num_address_cells = prom_n_addr_cells(node_vroot->child);
/*
* Create struct vio_devices for each virtual device in the device tree.
* Drivers will associate with them later.
*/
for (of_node = node_vroot->child; of_node != NULL;
of_node = of_node->sibling) {
printk(KERN_DEBUG "%s: processing %p\n", __FUNCTION__, of_node);
vio_register_device_node(of_node);
}
}
#endif
#ifdef CONFIG_PPC_ISERIES
static void probe_bus_iseries(void)
{
HvLpIndexMap vlan_map = HvLpConfig_getVirtualLanIndexMap();
struct vio_dev *viodev;
int i;
/* there is only one of each of these */
vio_register_device_iseries("viocons", 0);
vio_register_device_iseries("vscsi", 0);
vlan_map = HvLpConfig_getVirtualLanIndexMap();
for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) {
if ((vlan_map & (0x8000 >> i)) == 0)
continue;
viodev = vio_register_device_iseries("vlan", i);
/* veth is special and has it own iommu_table */
viodev->iommu_table = &veth_iommu_table;
}
for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++)
vio_register_device_iseries("viodasd", i);
for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++)
vio_register_device_iseries("viocd", i);
for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++)
vio_register_device_iseries("viotape", i);
}
#endif
/**
* vio_bus_init: - Initialize the virtual IO bus
*/
static int __init vio_bus_init(void)
int __init vio_bus_init(int (*match_func)(const struct vio_device_id *id,
const struct vio_dev *dev),
void (*unregister_dev)(struct vio_dev *),
void (*release_dev)(struct device *))
{
int err;
is_match = match_func;
unregister_device_callback = unregister_dev;
release_device_callback = release_dev;
err = bus_register(&vio_bus_type);
if (err) {
printk(KERN_ERR "failed to register VIO bus\n");
return err;
}
/* the fake parent of all vio devices, just to give us a nice directory */
/* the fake parent of all vio devices, just to give us
* a nice directory
*/
err = device_register(&vio_bus_device.dev);
if (err) {
printk(KERN_WARNING "%s: device_register returned %i\n", __FUNCTION__,
err);
printk(KERN_WARNING "%s: device_register returned %i\n",
__FUNCTION__, err);
return err;
}
#ifdef CONFIG_PPC_PSERIES
probe_bus_pseries();
#endif
#ifdef CONFIG_PPC_ISERIES
probe_bus_iseries();
#endif
return 0;
}
__initcall(vio_bus_init);
/* vio_dev refcount hit 0 */
static void __devinit vio_dev_release(struct device *dev)
{
DBGENTER();
#ifdef CONFIG_PPC_PSERIES
/* XXX free TCE table */
of_node_put(dev->platform_data);
#endif
if (release_device_callback)
release_device_callback(dev);
kfree(to_vio_dev(dev));
}
#ifdef CONFIG_PPC_PSERIES
static ssize_t viodev_show_devspec(struct device *dev, struct device_attribute *attr, char *buf)
{
struct device_node *of_node = dev->platform_data;
return sprintf(buf, "%s\n", of_node->full_name);
}
DEVICE_ATTR(devspec, S_IRUSR | S_IRGRP | S_IROTH, viodev_show_devspec, NULL);
#endif
static ssize_t viodev_show_name(struct device *dev, struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n", to_vio_dev(dev)->name);
}
DEVICE_ATTR(name, S_IRUSR | S_IRGRP | S_IROTH, viodev_show_name, NULL);
static struct vio_dev * __devinit vio_register_device_common(
struct vio_dev * __devinit vio_register_device_common(
struct vio_dev *viodev, char *name, char *type,
uint32_t unit_address, struct iommu_table *iommu_table)
{
DBGENTER();
viodev->name = name;
viodev->type = type;
viodev->unit_address = unit_address;
@ -338,222 +192,15 @@ static struct vio_dev * __devinit vio_register_device_common(
return viodev;
}
#ifdef CONFIG_PPC_PSERIES
/**
* vio_register_device_node: - Register a new vio device.
* @of_node: The OF node for this device.
*
* Creates and initializes a vio_dev structure from the data in
* of_node (dev.platform_data) and adds it to the list of virtual devices.
* Returns a pointer to the created vio_dev or NULL if node has
* NULL device_type or compatible fields.
*/
struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node)
{
struct vio_dev *viodev;
unsigned int *unit_address;
unsigned int *irq_p;
DBGENTER();
/* we need the 'device_type' property, in order to match with drivers */
if ((NULL == of_node->type)) {
printk(KERN_WARNING
"%s: node %s missing 'device_type'\n", __FUNCTION__,
of_node->name ? of_node->name : "<unknown>");
return NULL;
}
unit_address = (unsigned int *)get_property(of_node, "reg", NULL);
if (!unit_address) {
printk(KERN_WARNING "%s: node %s missing 'reg'\n", __FUNCTION__,
of_node->name ? of_node->name : "<unknown>");
return NULL;
}
/* allocate a vio_dev for this node */
viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);
if (!viodev) {
return NULL;
}
memset(viodev, 0, sizeof(struct vio_dev));
viodev->dev.platform_data = of_node_get(of_node);
viodev->irq = NO_IRQ;
irq_p = (unsigned int *)get_property(of_node, "interrupts", NULL);
if (irq_p) {
int virq = virt_irq_create_mapping(*irq_p);
if (virq == NO_IRQ) {
printk(KERN_ERR "Unable to allocate interrupt "
"number for %s\n", of_node->full_name);
} else
viodev->irq = irq_offset_up(virq);
}
snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%x", *unit_address);
/* register with generic device framework */
if (vio_register_device_common(viodev, of_node->name, of_node->type,
*unit_address, vio_build_iommu_table(viodev))
== NULL) {
/* XXX free TCE table */
kfree(viodev);
return NULL;
}
device_create_file(&viodev->dev, &dev_attr_devspec);
return viodev;
}
EXPORT_SYMBOL(vio_register_device_node);
#endif
#ifdef CONFIG_PPC_ISERIES
/**
* vio_register_device: - Register a new vio device.
* @voidev: The device to register.
*/
static struct vio_dev *__init vio_register_device_iseries(char *type,
uint32_t unit_num)
{
struct vio_dev *viodev;
DBGENTER();
/* allocate a vio_dev for this node */
viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);
if (!viodev)
return NULL;
memset(viodev, 0, sizeof(struct vio_dev));
snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%s%d", type, unit_num);
return vio_register_device_common(viodev, viodev->dev.bus_id, type,
unit_num, &vio_iommu_table);
}
#endif
void __devinit vio_unregister_device(struct vio_dev *viodev)
{
DBGENTER();
#ifdef CONFIG_PPC_PSERIES
device_remove_file(&viodev->dev, &dev_attr_devspec);
#endif
if (unregister_device_callback)
unregister_device_callback(viodev);
device_remove_file(&viodev->dev, &dev_attr_name);
device_unregister(&viodev->dev);
}
EXPORT_SYMBOL(vio_unregister_device);
#ifdef CONFIG_PPC_PSERIES
/**
* vio_get_attribute: - get attribute for virtual device
* @vdev: The vio device to get property.
* @which: The property/attribute to be extracted.
* @length: Pointer to length of returned data size (unused if NULL).
*
* Calls prom.c's get_property() to return the value of the
* attribute specified by the preprocessor constant @which
*/
const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length)
{
return get_property(vdev->dev.platform_data, (char*)which, length);
}
EXPORT_SYMBOL(vio_get_attribute);
/* vio_find_name() - internal because only vio.c knows how we formatted the
* kobject name
* XXX once vio_bus_type.devices is actually used as a kset in
* drivers/base/bus.c, this function should be removed in favor of
* "device_find(kobj_name, &vio_bus_type)"
*/
static struct vio_dev *vio_find_name(const char *kobj_name)
{
struct kobject *found;
found = kset_find_obj(&devices_subsys.kset, kobj_name);
if (!found)
return NULL;
return to_vio_dev(container_of(found, struct device, kobj));
}
/**
* vio_find_node - find an already-registered vio_dev
* @vnode: device_node of the virtual device we're looking for
*/
struct vio_dev *vio_find_node(struct device_node *vnode)
{
uint32_t *unit_address;
char kobj_name[BUS_ID_SIZE];
/* construct the kobject name from the device node */
unit_address = (uint32_t *)get_property(vnode, "reg", NULL);
if (!unit_address)
return NULL;
snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address);
return vio_find_name(kobj_name);
}
EXPORT_SYMBOL(vio_find_node);
/**
* vio_build_iommu_table: - gets the dma information from OF and builds the TCE tree.
* @dev: the virtual device.
*
* Returns a pointer to the built tce tree, or NULL if it can't
* find property.
*/
static struct iommu_table * vio_build_iommu_table(struct vio_dev *dev)
{
unsigned int *dma_window;
struct iommu_table *newTceTable;
unsigned long offset;
int dma_window_property_size;
dma_window = (unsigned int *) get_property(dev->dev.platform_data, "ibm,my-dma-window", &dma_window_property_size);
if(!dma_window) {
return NULL;
}
newTceTable = (struct iommu_table *) kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
/* There should be some code to extract the phys-encoded offset
using prom_n_addr_cells(). However, according to a comment
on earlier versions, it's always zero, so we don't bother */
offset = dma_window[1] >> PAGE_SHIFT;
/* TCE table size - measured in tce entries */
newTceTable->it_size = dma_window[4] >> PAGE_SHIFT;
/* offset for VIO should always be 0 */
newTceTable->it_offset = offset;
newTceTable->it_busno = 0;
newTceTable->it_index = (unsigned long)dma_window[0];
newTceTable->it_type = TCE_VB;
return iommu_init_table(newTceTable);
}
int vio_enable_interrupts(struct vio_dev *dev)
{
int rc = h_vio_signal(dev->unit_address, VIO_IRQ_ENABLE);
if (rc != H_Success) {
printk(KERN_ERR "vio: Error 0x%x enabling interrupts\n", rc);
}
return rc;
}
EXPORT_SYMBOL(vio_enable_interrupts);
int vio_disable_interrupts(struct vio_dev *dev)
{
int rc = h_vio_signal(dev->unit_address, VIO_IRQ_DISABLE);
if (rc != H_Success) {
printk(KERN_ERR "vio: Error 0x%x disabling interrupts\n", rc);
}
return rc;
}
EXPORT_SYMBOL(vio_disable_interrupts);
#endif
static dma_addr_t vio_map_single(struct device *dev, void *vaddr,
size_t size, enum dma_data_direction direction)
{
@ -617,8 +264,6 @@ static int vio_bus_match(struct device *dev, struct device_driver *drv)
const struct vio_device_id *ids = vio_drv->id_table;
const struct vio_device_id *found_id;
DBGENTER();
if (!ids)
return 0;

3
arch/ppc64/mm/hash_native.c
View File

@ -51,7 +51,6 @@ long native_hpte_insert(unsigned long hpte_group, unsigned long va,
unsigned long prpn, unsigned long vflags,
unsigned long rflags)
{
unsigned long arpn = physRpn_to_absRpn(prpn);
hpte_t *hptep = htab_address + hpte_group;
unsigned long hpte_v, hpte_r;
int i;
@ -74,7 +73,7 @@ long native_hpte_insert(unsigned long hpte_group, unsigned long va,
hpte_v = (va >> 23) << HPTE_V_AVPN_SHIFT | vflags | HPTE_V_VALID;
if (vflags & HPTE_V_LARGE)
va &= ~(1UL << HPTE_V_AVPN_SHIFT);
hpte_r = (arpn << HPTE_R_RPN_SHIFT) | rflags;
hpte_r = (prpn << HPTE_R_RPN_SHIFT) | rflags;
hptep->r = hpte_r;
/* Guarantee the second dword is visible before the valid bit */

4
arch/ppc64/mm/hash_utils.c
View File

@ -210,7 +210,7 @@ void __init htab_initialize(void)
/* create bolted the linear mapping in the hash table */
for (i=0; i < lmb.memory.cnt; i++) {
base = lmb.memory.region[i].physbase + KERNELBASE;
base = lmb.memory.region[i].base + KERNELBASE;
size = lmb.memory.region[i].size;
DBG("creating mapping for region: %lx : %lx\n", base, size);
@ -302,7 +302,7 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
int local = 0;
cpumask_t tmp;
if ((ea & ~REGION_MASK) > EADDR_MASK)
if ((ea & ~REGION_MASK) >= PGTABLE_RANGE)
return 1;
switch (REGION_ID(ea)) {

408
arch/ppc64/mm/hugetlbpage.c
View File

@ -27,124 +27,94 @@
#include <linux/sysctl.h>
#define HUGEPGDIR_SHIFT (HPAGE_SHIFT + PAGE_SHIFT - 3)
#define HUGEPGDIR_SIZE (1UL << HUGEPGDIR_SHIFT)
#define HUGEPGDIR_MASK (~(HUGEPGDIR_SIZE-1))
#define NUM_LOW_AREAS (0x100000000UL >> SID_SHIFT)
#define NUM_HIGH_AREAS (PGTABLE_RANGE >> HTLB_AREA_SHIFT)
#define HUGEPTE_INDEX_SIZE 9
#define HUGEPGD_INDEX_SIZE 10
#define PTRS_PER_HUGEPTE (1 << HUGEPTE_INDEX_SIZE)
#define PTRS_PER_HUGEPGD (1 << HUGEPGD_INDEX_SIZE)
static inline int hugepgd_index(unsigned long addr)
/* Modelled after find_linux_pte() */
pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
{
return (addr & ~REGION_MASK) >> HUGEPGDIR_SHIFT;
}
pgd_t *pg;
pud_t *pu;
pmd_t *pm;
pte_t *pt;
static pud_t *hugepgd_offset(struct mm_struct *mm, unsigned long addr)
{
int index;
if (! mm->context.huge_pgdir)
return NULL;
index = hugepgd_index(addr);
BUG_ON(index >= PTRS_PER_HUGEPGD);
return (pud_t *)(mm->context.huge_pgdir + index);
}
static inline pte_t *hugepte_offset(pud_t *dir, unsigned long addr)
{
int index;
if (pud_none(*dir))
return NULL;
index = (addr >> HPAGE_SHIFT) % PTRS_PER_HUGEPTE;
return (pte_t *)pud_page(*dir) + index;
}
static pud_t *hugepgd_alloc(struct mm_struct *mm, unsigned long addr)
{
BUG_ON(! in_hugepage_area(mm->context, addr));
if (! mm->context.huge_pgdir) {
pgd_t *new;
spin_unlock(&mm->page_table_lock);
/* Don't use pgd_alloc(), because we want __GFP_REPEAT */
new = kmem_cache_alloc(zero_cache, GFP_KERNEL | __GFP_REPEAT);
BUG_ON(memcmp(new, empty_zero_page, PAGE_SIZE));
spin_lock(&mm->page_table_lock);
addr &= HPAGE_MASK;
/*
* Because we dropped the lock, we should re-check the
* entry, as somebody else could have populated it..
*/
if (mm->context.huge_pgdir)
pgd_free(new);
else
mm->context.huge_pgdir = new;
}
return hugepgd_offset(mm, addr);
}
static pte_t *hugepte_alloc(struct mm_struct *mm, pud_t *dir, unsigned long addr)
{
if (! pud_present(*dir)) {
pte_t *new;
spin_unlock(&mm->page_table_lock);
new = kmem_cache_alloc(zero_cache, GFP_KERNEL | __GFP_REPEAT);
BUG_ON(memcmp(new, empty_zero_page, PAGE_SIZE));
spin_lock(&mm->page_table_lock);
/*
* Because we dropped the lock, we should re-check the
* entry, as somebody else could have populated it..
*/
if (pud_present(*dir)) {
if (new)
kmem_cache_free(zero_cache, new);
} else {
struct page *ptepage;
if (! new)
return NULL;
ptepage = virt_to_page(new);
ptepage->mapping = (void *) mm;
ptepage->index = addr & HUGEPGDIR_MASK;
pud_populate(mm, dir, new);
pg = pgd_offset(mm, addr);
if (!pgd_none(*pg)) {
pu = pud_offset(pg, addr);
if (!pud_none(*pu)) {
pm = pmd_offset(pu, addr);
pt = (pte_t *)pm;
BUG_ON(!pmd_none(*pm)
&& !(pte_present(*pt) && pte_huge(*pt)));
return pt;
}
}
return hugepte_offset(dir, addr);
}
pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
{
pud_t *pud;
BUG_ON(! in_hugepage_area(mm->context, addr));
pud = hugepgd_offset(mm, addr);
if (! pud)
return NULL;
return hugepte_offset(pud, addr);
return NULL;
}
pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
{
pud_t *pud;
pgd_t *pg;
pud_t *pu;
pmd_t *pm;
pte_t *pt;
BUG_ON(! in_hugepage_area(mm->context, addr));
pud = hugepgd_alloc(mm, addr);
if (! pud)
return NULL;
addr &= HPAGE_MASK;
return hugepte_alloc(mm, pud, addr);
pg = pgd_offset(mm, addr);
pu = pud_alloc(mm, pg, addr);
if (pu) {
pm = pmd_alloc(mm, pu, addr);
if (pm) {
pt = (pte_t *)pm;
BUG_ON(!pmd_none(*pm)
&& !(pte_present(*pt) && pte_huge(*pt)));
return pt;
}
}
return NULL;
}
#define HUGEPTE_BATCH_SIZE (HPAGE_SIZE / PMD_SIZE)
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
int i;
if (pte_present(*ptep)) {
pte_clear(mm, addr, ptep);
flush_tlb_pending();
}
for (i = 0; i < HUGEPTE_BATCH_SIZE; i++) {
*ptep = __pte(pte_val(pte) & ~_PAGE_HPTEFLAGS);
ptep++;
}
}
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
unsigned long old = pte_update(ptep, ~0UL);
int i;
if (old & _PAGE_HASHPTE)
hpte_update(mm, addr, old, 0);
for (i = 1; i < HUGEPTE_BATCH_SIZE; i++)
ptep[i] = __pte(0);
return __pte(old);
}
/*
@ -162,15 +132,17 @@ int is_aligned_hugepage_range(unsigned long addr, unsigned long len)
return 0;
}
static void flush_segments(void *parm)
static void flush_low_segments(void *parm)
{
u16 segs = (unsigned long) parm;
u16 areas = (unsigned long) parm;
unsigned long i;
asm volatile("isync" : : : "memory");
for (i = 0; i < 16; i++) {
if (! (segs & (1U << i)))
BUILD_BUG_ON((sizeof(areas)*8) != NUM_LOW_AREAS);
for (i = 0; i < NUM_LOW_AREAS; i++) {
if (! (areas & (1U << i)))
continue;
asm volatile("slbie %0" : : "r" (i << SID_SHIFT));
}
@ -178,13 +150,33 @@ static void flush_segments(void *parm)
asm volatile("isync" : : : "memory");
}
static int prepare_low_seg_for_htlb(struct mm_struct *mm, unsigned long seg)
static void flush_high_segments(void *parm)
{
unsigned long start = seg << SID_SHIFT;
unsigned long end = (seg+1) << SID_SHIFT;
u16 areas = (unsigned long) parm;
unsigned long i, j;
asm volatile("isync" : : : "memory");
BUILD_BUG_ON((sizeof(areas)*8) != NUM_HIGH_AREAS);
for (i = 0; i < NUM_HIGH_AREAS; i++) {
if (! (areas & (1U << i)))
continue;
for (j = 0; j < (1UL << (HTLB_AREA_SHIFT-SID_SHIFT)); j++)
asm volatile("slbie %0"
:: "r" ((i << HTLB_AREA_SHIFT) + (j << SID_SHIFT)));
}
asm volatile("isync" : : : "memory");
}
static int prepare_low_area_for_htlb(struct mm_struct *mm, unsigned long area)
{
unsigned long start = area << SID_SHIFT;
unsigned long end = (area+1) << SID_SHIFT;
struct vm_area_struct *vma;
BUG_ON(seg >= 16);
BUG_ON(area >= NUM_LOW_AREAS);
/* Check no VMAs are in the region */
vma = find_vma(mm, start);
@ -194,20 +186,39 @@ static int prepare_low_seg_for_htlb(struct mm_struct *mm, unsigned long seg)
return 0;
}
static int open_low_hpage_segs(struct mm_struct *mm, u16 newsegs)
static int prepare_high_area_for_htlb(struct mm_struct *mm, unsigned long area)
{
unsigned long start = area << HTLB_AREA_SHIFT;
unsigned long end = (area+1) << HTLB_AREA_SHIFT;
struct vm_area_struct *vma;
BUG_ON(area >= NUM_HIGH_AREAS);
/* Check no VMAs are in the region */
vma = find_vma(mm, start);
if (vma && (vma->vm_start < end))
return -EBUSY;
return 0;
}
static int open_low_hpage_areas(struct mm_struct *mm, u16 newareas)
{
unsigned long i;
newsegs &= ~(mm->context.htlb_segs);
if (! newsegs)
BUILD_BUG_ON((sizeof(newareas)*8) != NUM_LOW_AREAS);
BUILD_BUG_ON((sizeof(mm->context.low_htlb_areas)*8) != NUM_LOW_AREAS);
newareas &= ~(mm->context.low_htlb_areas);
if (! newareas)
return 0; /* The segments we want are already open */
for (i = 0; i < 16; i++)
if ((1 << i) & newsegs)
if (prepare_low_seg_for_htlb(mm, i) != 0)
for (i = 0; i < NUM_LOW_AREAS; i++)
if ((1 << i) & newareas)
if (prepare_low_area_for_htlb(mm, i) != 0)
return -EBUSY;
mm->context.htlb_segs |= newsegs;
mm->context.low_htlb_areas |= newareas;
/* update the paca copy of the context struct */
get_paca()->context = mm->context;
@ -215,29 +226,63 @@ static int open_low_hpage_segs(struct mm_struct *mm, u16 newsegs)
/* the context change must make it to memory before the flush,
* so that further SLB misses do the right thing. */
mb();
on_each_cpu(flush_segments, (void *)(unsigned long)newsegs, 0, 1);
on_each_cpu(flush_low_segments, (void *)(unsigned long)newareas, 0, 1);
return 0;
}
static int open_high_hpage_areas(struct mm_struct *mm, u16 newareas)
{
unsigned long i;
BUILD_BUG_ON((sizeof(newareas)*8) != NUM_HIGH_AREAS);
BUILD_BUG_ON((sizeof(mm->context.high_htlb_areas)*8)
!= NUM_HIGH_AREAS);
newareas &= ~(mm->context.high_htlb_areas);
if (! newareas)
return 0; /* The areas we want are already open */
for (i = 0; i < NUM_HIGH_AREAS; i++)
if ((1 << i) & newareas)
if (prepare_high_area_for_htlb(mm, i) != 0)
return -EBUSY;
mm->context.high_htlb_areas |= newareas;
/* update the paca copy of the context struct */
get_paca()->context = mm->context;
/* the context change must make it to memory before the flush,
* so that further SLB misses do the right thing. */
mb();
on_each_cpu(flush_high_segments, (void *)(unsigned long)newareas, 0, 1);
return 0;
}
int prepare_hugepage_range(unsigned long addr, unsigned long len)
{
if (within_hugepage_high_range(addr, len))
return 0;
else if ((addr < 0x100000000UL) && ((addr+len) < 0x100000000UL)) {
int err;
/* Yes, we need both tests, in case addr+len overflows
* 64-bit arithmetic */
err = open_low_hpage_segs(current->mm,
int err;
if ( (addr+len) < addr )
return -EINVAL;
if ((addr + len) < 0x100000000UL)
err = open_low_hpage_areas(current->mm,
LOW_ESID_MASK(addr, len));
if (err)
printk(KERN_DEBUG "prepare_hugepage_range(%lx, %lx)"
" failed (segs: 0x%04hx)\n", addr, len,
LOW_ESID_MASK(addr, len));
else
err = open_high_hpage_areas(current->mm,
HTLB_AREA_MASK(addr, len));
if (err) {
printk(KERN_DEBUG "prepare_hugepage_range(%lx, %lx)"
" failed (lowmask: 0x%04hx, highmask: 0x%04hx)\n",
addr, len,
LOW_ESID_MASK(addr, len), HTLB_AREA_MASK(addr, len));
return err;
}
return -EINVAL;
return 0;
}
struct page *
@ -309,8 +354,8 @@ full_search:
vma = find_vma(mm, addr);
continue;
}
if (touches_hugepage_high_range(addr, len)) {
addr = TASK_HPAGE_END;
if (touches_hugepage_high_range(mm, addr, len)) {
addr = ALIGN(addr+1, 1UL<<HTLB_AREA_SHIFT);
vma = find_vma(mm, addr);
continue;
}
@ -389,8 +434,9 @@ hugepage_recheck:
if (touches_hugepage_low_range(mm, addr, len)) {
addr = (addr & ((~0) << SID_SHIFT)) - len;
goto hugepage_recheck;
} else if (touches_hugepage_high_range(addr, len)) {
addr = TASK_HPAGE_BASE - len;
} else if (touches_hugepage_high_range(mm, addr, len)) {
addr = (addr & ((~0UL) << HTLB_AREA_SHIFT)) - len;
goto hugepage_recheck;
}
/*
@ -481,23 +527,28 @@ static unsigned long htlb_get_low_area(unsigned long len, u16 segmask)
return -ENOMEM;
}
static unsigned long htlb_get_high_area(unsigned long len)
static unsigned long htlb_get_high_area(unsigned long len, u16 areamask)
{
unsigned long addr = TASK_HPAGE_BASE;
unsigned long addr = 0x100000000UL;
struct vm_area_struct *vma;
vma = find_vma(current->mm, addr);
for (vma = find_vma(current->mm, addr);
addr + len <= TASK_HPAGE_END;
vma = vma->vm_next) {
while (addr + len <= TASK_SIZE_USER64) {
BUG_ON(vma && (addr >= vma->vm_end)); /* invariant */
BUG_ON(! within_hugepage_high_range(addr, len));
if (! __within_hugepage_high_range(addr, len, areamask)) {
addr = ALIGN(addr+1, 1UL<<HTLB_AREA_SHIFT);
vma = find_vma(current->mm, addr);
continue;
}
if (!vma || (addr + len) <= vma->vm_start)
return addr;
addr = ALIGN(vma->vm_end, HPAGE_SIZE);
/* Because we're in a hugepage region, this alignment
* should not skip us over any VMAs */
/* Depending on segmask this might not be a confirmed
* hugepage region, so the ALIGN could have skipped
* some VMAs */
vma = find_vma(current->mm, addr);
}
return -ENOMEM;
@ -507,6 +558,9 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff,
unsigned long flags)
{
int lastshift;
u16 areamask, curareas;
if (len & ~HPAGE_MASK)
return -EINVAL;
@ -514,67 +568,49 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
return -EINVAL;
if (test_thread_flag(TIF_32BIT)) {
int lastshift = 0;
u16 segmask, cursegs = current->mm->context.htlb_segs;
curareas = current->mm->context.low_htlb_areas;
/* First see if we can do the mapping in the existing
* low hpage segments */
addr = htlb_get_low_area(len, cursegs);
* low areas */
addr = htlb_get_low_area(len, curareas);
if (addr != -ENOMEM)
return addr;
for (segmask = LOW_ESID_MASK(0x100000000UL-len, len);
! lastshift; segmask >>=1) {
if (segmask & 1)
lastshift = 0;
for (areamask = LOW_ESID_MASK(0x100000000UL-len, len);
! lastshift; areamask >>=1) {
if (areamask & 1)
lastshift = 1;
addr = htlb_get_low_area(len, cursegs | segmask);
addr = htlb_get_low_area(len, curareas | areamask);
if ((addr != -ENOMEM)
&& open_low_hpage_segs(current->mm, segmask) == 0)
&& open_low_hpage_areas(current->mm, areamask) == 0)
return addr;
}
printk(KERN_DEBUG "hugetlb_get_unmapped_area() unable to open"
" enough segments\n");
return -ENOMEM;
} else {
return htlb_get_high_area(len);
}
}
curareas = current->mm->context.high_htlb_areas;
void hugetlb_mm_free_pgd(struct mm_struct *mm)
{
int i;
pgd_t *pgdir;
/* First see if we can do the mapping in the existing
* high areas */
addr = htlb_get_high_area(len, curareas);
if (addr != -ENOMEM)
return addr;
spin_lock(&mm->page_table_lock);
lastshift = 0;
for (areamask = HTLB_AREA_MASK(TASK_SIZE_USER64-len, len);
! lastshift; areamask >>=1) {
if (areamask & 1)
lastshift = 1;
pgdir = mm->context.huge_pgdir;
if (! pgdir)
goto out;
mm->context.huge_pgdir = NULL;
/* cleanup any hugepte pages leftover */
for (i = 0; i < PTRS_PER_HUGEPGD; i++) {
pud_t *pud = (pud_t *)(pgdir + i);
if (! pud_none(*pud)) {
pte_t *pte = (pte_t *)pud_page(*pud);
struct page *ptepage = virt_to_page(pte);
ptepage->mapping = NULL;
BUG_ON(memcmp(pte, empty_zero_page, PAGE_SIZE));
kmem_cache_free(zero_cache, pte);
addr = htlb_get_high_area(len, curareas | areamask);
if ((addr != -ENOMEM)
&& open_high_hpage_areas(current->mm, areamask) == 0)
return addr;
}
pud_clear(pud);
}
BUG_ON(memcmp(pgdir, empty_zero_page, PAGE_SIZE));
kmem_cache_free(zero_cache, pgdir);
out:
spin_unlock(&mm->page_table_lock);
printk(KERN_DEBUG "hugetlb_get_unmapped_area() unable to open"
" enough areas\n");
return -ENOMEM;
}
int hash_huge_page(struct mm_struct *mm, unsigned long access,

2
arch/ppc64/mm/imalloc.c
View File

@ -31,7 +31,7 @@ static int get_free_im_addr(unsigned long size, unsigned long *im_addr)
break;
if ((unsigned long)tmp->addr >= ioremap_bot)
addr = tmp->size + (unsigned long) tmp->addr;
if (addr > IMALLOC_END-size)
if (addr >= IMALLOC_END-size)
return 1;
}
*im_addr = addr;

96
arch/ppc64/mm/init.c
View File

@ -42,7 +42,6 @@
#include <asm/pgalloc.h>
#include <asm/page.h>
#include <asm/abs_addr.h>
#include <asm/prom.h>
#include <asm/lmb.h>
#include <asm/rtas.h>
@ -66,6 +65,14 @@
#include <asm/vdso.h>
#include <asm/imalloc.h>
#if PGTABLE_RANGE > USER_VSID_RANGE
#warning Limited user VSID range means pagetable space is wasted
#endif
#if (TASK_SIZE_USER64 < PGTABLE_RANGE) && (TASK_SIZE_USER64 < USER_VSID_RANGE)
#warning TASK_SIZE is smaller than it needs to be.
#endif
int mem_init_done;
unsigned long ioremap_bot = IMALLOC_BASE;
static unsigned long phbs_io_bot = PHBS_IO_BASE;
@ -159,7 +166,6 @@ static int map_io_page(unsigned long ea, unsigned long pa, int flags)
ptep = pte_alloc_kernel(&init_mm, pmdp, ea);
if (!ptep)
return -ENOMEM;
pa = abs_to_phys(pa);
set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT,
__pgprot(flags)));
spin_unlock(&init_mm.page_table_lock);
@ -226,7 +232,7 @@ void __iomem * __ioremap(unsigned long addr, unsigned long size,
* Before that, we map using addresses going
* up from ioremap_bot. imalloc will use
* the addresses from ioremap_bot through
* IMALLOC_END (0xE000001fffffffff)
* IMALLOC_END
*
*/
pa = addr & PAGE_MASK;
@ -417,12 +423,6 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
int index;
int err;
#ifdef CONFIG_HUGETLB_PAGE
/* We leave htlb_segs as it was, but for a fork, we need to
* clear the huge_pgdir. */
mm->context.huge_pgdir = NULL;
#endif
again:
if (!idr_pre_get(&mmu_context_idr, GFP_KERNEL))
return -ENOMEM;
@ -453,8 +453,6 @@ void destroy_context(struct mm_struct *mm)
spin_unlock(&mmu_context_lock);
mm->context.id = NO_CONTEXT;
hugetlb_mm_free_pgd(mm);
}
/*
@ -484,9 +482,9 @@ void __init mm_init_ppc64(void)
for (i = 1; i < lmb.memory.cnt; i++) {
unsigned long base, prevbase, prevsize;
prevbase = lmb.memory.region[i-1].physbase;
prevbase = lmb.memory.region[i-1].base;
prevsize = lmb.memory.region[i-1].size;
base = lmb.memory.region[i].physbase;
base = lmb.memory.region[i].base;
if (base > (prevbase + prevsize)) {
io_hole_start = prevbase + prevsize;
io_hole_size = base - (prevbase + prevsize);
@ -513,11 +511,8 @@ int page_is_ram(unsigned long pfn)
for (i=0; i < lmb.memory.cnt; i++) {
unsigned long base;
#ifdef CONFIG_MSCHUNKS
base = lmb.memory.region[i].physbase;
#else
base = lmb.memory.region[i].base;
#endif
if ((paddr >= base) &&
(paddr < (base + lmb.memory.region[i].size))) {
return 1;
@ -547,7 +542,7 @@ void __init do_init_bootmem(void)
*/
bootmap_pages = bootmem_bootmap_pages(total_pages);
start = abs_to_phys(lmb_alloc(bootmap_pages<<PAGE_SHIFT, PAGE_SIZE));
start = lmb_alloc(bootmap_pages<<PAGE_SHIFT, PAGE_SIZE);
BUG_ON(!start);
boot_mapsize = init_bootmem(start >> PAGE_SHIFT, total_pages);
@ -558,25 +553,25 @@ void __init do_init_bootmem(void)
* present.
*/
for (i=0; i < lmb.memory.cnt; i++) {
unsigned long physbase, size;
unsigned long base, size;
unsigned long start_pfn, end_pfn;
physbase = lmb.memory.region[i].physbase;
base = lmb.memory.region[i].base;
size = lmb.memory.region[i].size;
start_pfn = physbase >> PAGE_SHIFT;
start_pfn = base >> PAGE_SHIFT;
end_pfn = start_pfn + (size >> PAGE_SHIFT);
memory_present(0, start_pfn, end_pfn);
free_bootmem(physbase, size);
free_bootmem(base, size);
}
/* reserve the sections we're already using */
for (i=0; i < lmb.reserved.cnt; i++) {
unsigned long physbase = lmb.reserved.region[i].physbase;
unsigned long base = lmb.reserved.region[i].base;
unsigned long size = lmb.reserved.region[i].size;
reserve_bootmem(physbase, size);
reserve_bootmem(base, size);
}
}
@ -615,10 +610,10 @@ static int __init setup_kcore(void)
int i;
for (i=0; i < lmb.memory.cnt; i++) {
unsigned long physbase, size;
unsigned long base, size;
struct kcore_list *kcore_mem;
physbase = lmb.memory.region[i].physbase;
base = lmb.memory.region[i].base;
size = lmb.memory.region[i].size;
/* GFP_ATOMIC to avoid might_sleep warnings during boot */
@ -626,7 +621,7 @@ static int __init setup_kcore(void)
if (!kcore_mem)
panic("mem_init: kmalloc failed\n");
kclist_add(kcore_mem, __va(physbase), size);
kclist_add(kcore_mem, __va(base), size);
}
kclist_add(&kcore_vmem, (void *)VMALLOC_START, VMALLOC_END-VMALLOC_START);
@ -686,9 +681,6 @@ void __init mem_init(void)
mem_init_done = 1;
#ifdef CONFIG_PPC_ISERIES
iommu_vio_init();
#endif
/* Initialize the vDSO */
vdso_init();
}
@ -833,23 +825,43 @@ void __iomem * reserve_phb_iospace(unsigned long size)
return virt_addr;
}
kmem_cache_t *zero_cache;
static void zero_ctor(void *pte, kmem_cache_t *cache, unsigned long flags)
static void zero_ctor(void *addr, kmem_cache_t *cache, unsigned long flags)
{
memset(pte, 0, PAGE_SIZE);
memset(addr, 0, kmem_cache_size(cache));
}
static const int pgtable_cache_size[2] = {
PTE_TABLE_SIZE, PMD_TABLE_SIZE
};
static const char *pgtable_cache_name[ARRAY_SIZE(pgtable_cache_size)] = {
"pgd_pte_cache", "pud_pmd_cache",
};
kmem_cache_t *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)];
void pgtable_cache_init(void)
{
zero_cache = kmem_cache_create("zero",
PAGE_SIZE,
0,
SLAB_HWCACHE_ALIGN | SLAB_MUST_HWCACHE_ALIGN,
zero_ctor,
NULL);
if (!zero_cache)
panic("pgtable_cache_init(): could not create zero_cache!\n");
int i;
BUILD_BUG_ON(PTE_TABLE_SIZE != pgtable_cache_size[PTE_CACHE_NUM]);
BUILD_BUG_ON(PMD_TABLE_SIZE != pgtable_cache_size[PMD_CACHE_NUM]);
BUILD_BUG_ON(PUD_TABLE_SIZE != pgtable_cache_size[PUD_CACHE_NUM]);
BUILD_BUG_ON(PGD_TABLE_SIZE != pgtable_cache_size[PGD_CACHE_NUM]);
for (i = 0; i < ARRAY_SIZE(pgtable_cache_size); i++) {
int size = pgtable_cache_size[i];
const char *name = pgtable_cache_name[i];
pgtable_cache[i] = kmem_cache_create(name,
size, size,
SLAB_HWCACHE_ALIGN
| SLAB_MUST_HWCACHE_ALIGN,
zero_ctor,
NULL);
if (! pgtable_cache[i])
panic("pgtable_cache_init(): could not create %s!\n",
name);
}
}
pgprot_t phys_mem_access_prot(struct file *file, unsigned long addr,

2
arch/ppc64/mm/numa.c
View File

@ -671,7 +671,7 @@ new_range:
* Mark reserved regions on this node
*/
for (i = 0; i < lmb.reserved.cnt; i++) {
unsigned long physbase = lmb.reserved.region[i].physbase;
unsigned long physbase = lmb.reserved.region[i].base;
unsigned long size = lmb.reserved.region[i].size;
if (pa_to_nid(physbase) != nid &&

27
arch/ppc64/mm/slb_low.S
View File

@ -89,28 +89,29 @@ END_FTR_SECTION_IFSET(CPU_FTR_16M_PAGE)
b 9f
0: /* user address: proto-VSID = context<<15 | ESID */
li r11,SLB_VSID_USER
srdi. r9,r3,13
srdi. r9,r3,USER_ESID_BITS
bne- 8f /* invalid ea bits set */
#ifdef CONFIG_HUGETLB_PAGE
BEGIN_FTR_SECTION
/* check against the hugepage ranges */
cmpldi r3,(TASK_HPAGE_END>>SID_SHIFT)
bge 6f /* >= TASK_HPAGE_END */
cmpldi r3,(TASK_HPAGE_BASE>>SID_SHIFT)
bge 5f /* TASK_HPAGE_BASE..TASK_HPAGE_END */
cmpldi r3,16
bge 6f /* 4GB..TASK_HPAGE_BASE */
lhz r9,PACAHIGHHTLBAREAS(r13)
srdi r11,r3,(HTLB_AREA_SHIFT-SID_SHIFT)
srd r9,r9,r11
andi. r9,r9,1
bne 5f
lhz r9,PACAHTLBSEGS(r13)
li r11,SLB_VSID_USER
cmpldi r3,16
bge 6f
lhz r9,PACALOWHTLBAREAS(r13)
srd r9,r9,r3
andi. r9,r9,1
beq 6f
5: /* this is a hugepage user address */
li r11,(SLB_VSID_USER|SLB_VSID_L)
5: li r11,SLB_VSID_USER|SLB_VSID_L
END_FTR_SECTION_IFSET(CPU_FTR_16M_PAGE)
#endif /* CONFIG_HUGETLB_PAGE */

95
arch/ppc64/mm/tlb.c
View File

@ -41,7 +41,58 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
DEFINE_PER_CPU(struct pte_freelist_batch *, pte_freelist_cur);
unsigned long pte_freelist_forced_free;
void __pte_free_tlb(struct mmu_gather *tlb, struct page *ptepage)
struct pte_freelist_batch
{
struct rcu_head rcu;
unsigned int index;
pgtable_free_t tables[0];
};
DEFINE_PER_CPU(struct pte_freelist_batch *, pte_freelist_cur);
unsigned long pte_freelist_forced_free;
#define PTE_FREELIST_SIZE \
((PAGE_SIZE - sizeof(struct pte_freelist_batch)) \
/ sizeof(pgtable_free_t))
#ifdef CONFIG_SMP
static void pte_free_smp_sync(void *arg)
{
/* Do nothing, just ensure we sync with all CPUs */
}
#endif
/* This is only called when we are critically out of memory
* (and fail to get a page in pte_free_tlb).
*/
static void pgtable_free_now(pgtable_free_t pgf)
{
pte_freelist_forced_free++;
smp_call_function(pte_free_smp_sync, NULL, 0, 1);
pgtable_free(pgf);
}
static void pte_free_rcu_callback(struct rcu_head *head)
{
struct pte_freelist_batch *batch =
container_of(head, struct pte_freelist_batch, rcu);
unsigned int i;
for (i = 0; i < batch->index; i++)
pgtable_free(batch->tables[i]);
free_page((unsigned long)batch);
}
static void pte_free_submit(struct pte_freelist_batch *batch)
{
INIT_RCU_HEAD(&batch->rcu);
call_rcu(&batch->rcu, pte_free_rcu_callback);
}
void pgtable_free_tlb(struct mmu_gather *tlb, pgtable_free_t pgf)
{
/* This is safe as we are holding page_table_lock */
cpumask_t local_cpumask = cpumask_of_cpu(smp_processor_id());
@ -49,19 +100,19 @@ void __pte_free_tlb(struct mmu_gather *tlb, struct page *ptepage)
if (atomic_read(&tlb->mm->mm_users) < 2 ||
cpus_equal(tlb->mm->cpu_vm_mask, local_cpumask)) {
pte_free(ptepage);
pgtable_free(pgf);
return;
}
if (*batchp == NULL) {
*batchp = (struct pte_freelist_batch *)__get_free_page(GFP_ATOMIC);
if (*batchp == NULL) {
pte_free_now(ptepage);
pgtable_free_now(pgf);
return;
}
(*batchp)->index = 0;
}
(*batchp)->pages[(*batchp)->index++] = ptepage;
(*batchp)->tables[(*batchp)->index++] = pgf;
if ((*batchp)->index == PTE_FREELIST_SIZE) {
pte_free_submit(*batchp);
*batchp = NULL;
@ -132,42 +183,6 @@ void __flush_tlb_pending(struct ppc64_tlb_batch *batch)
put_cpu();
}
#ifdef CONFIG_SMP
static void pte_free_smp_sync(void *arg)
{
/* Do nothing, just ensure we sync with all CPUs */
}
#endif
/* This is only called when we are critically out of memory
* (and fail to get a page in pte_free_tlb).
*/
void pte_free_now(struct page *ptepage)
{
pte_freelist_forced_free++;
smp_call_function(pte_free_smp_sync, NULL, 0, 1);
pte_free(ptepage);
}
static void pte_free_rcu_callback(struct rcu_head *head)
{
struct pte_freelist_batch *batch =
container_of(head, struct pte_freelist_batch, rcu);
unsigned int i;
for (i = 0; i < batch->index; i++)
pte_free(batch->pages[i]);
free_page((unsigned long)batch);
}
void pte_free_submit(struct pte_freelist_batch *batch)
{
INIT_RCU_HEAD(&batch->rcu);
call_rcu(&batch->rcu, pte_free_rcu_callback);
}
void pte_free_finish(void)
{
/* This is safe as we are holding page_table_lock */

2
arch/ppc64/xmon/start.c
View File

@ -27,7 +27,7 @@ static void sysrq_handle_xmon(int key, struct pt_regs *pt_regs,
struct tty_struct *tty)
{
/* ensure xmon is enabled */
xmon_init();
xmon_init(1);
debugger(pt_regs);
}

26
arch/ppc64/xmon/xmon.c
View File

@ -2496,15 +2496,25 @@ static void dump_stab(void)
}
}
void xmon_init(void)
void xmon_init(int enable)
{
__debugger = xmon;
__debugger_ipi = xmon_ipi;
__debugger_bpt = xmon_bpt;
__debugger_sstep = xmon_sstep;
__debugger_iabr_match = xmon_iabr_match;
__debugger_dabr_match = xmon_dabr_match;
__debugger_fault_handler = xmon_fault_handler;
if (enable) {
__debugger = xmon;
__debugger_ipi = xmon_ipi;
__debugger_bpt = xmon_bpt;
__debugger_sstep = xmon_sstep;
__debugger_iabr_match = xmon_iabr_match;
__debugger_dabr_match = xmon_dabr_match;
__debugger_fault_handler = xmon_fault_handler;
} else {
__debugger = NULL;
__debugger_ipi = NULL;
__debugger_bpt = NULL;
__debugger_sstep = NULL;
__debugger_iabr_match = NULL;
__debugger_dabr_match = NULL;
__debugger_fault_handler = NULL;
}
}
void dump_segments(void)

92
include/asm-ppc64/abs_addr.h
View File

@ -16,93 +16,51 @@
#include <asm/page.h>
#include <asm/prom.h>
#include <asm/lmb.h>
#include <asm/firmware.h>
typedef u32 msChunks_entry;
struct msChunks {
struct mschunks_map {
unsigned long num_chunks;
unsigned long chunk_size;
unsigned long chunk_shift;
unsigned long chunk_mask;
msChunks_entry *abs;
u32 *mapping;
};
extern struct msChunks msChunks;
extern struct mschunks_map mschunks_map;
extern unsigned long msChunks_alloc(unsigned long, unsigned long, unsigned long);
extern unsigned long reloc_offset(void);
/* Chunks are 256 KB */
#define MSCHUNKS_CHUNK_SHIFT (18)
#define MSCHUNKS_CHUNK_SIZE (1UL << MSCHUNKS_CHUNK_SHIFT)
#define MSCHUNKS_OFFSET_MASK (MSCHUNKS_CHUNK_SIZE - 1)
#ifdef CONFIG_MSCHUNKS
static inline unsigned long
chunk_to_addr(unsigned long chunk)
static inline unsigned long chunk_to_addr(unsigned long chunk)
{
unsigned long offset = reloc_offset();
struct msChunks *_msChunks = PTRRELOC(&msChunks);
return chunk << _msChunks->chunk_shift;
return chunk << MSCHUNKS_CHUNK_SHIFT;
}
static inline unsigned long
addr_to_chunk(unsigned long addr)
static inline unsigned long addr_to_chunk(unsigned long addr)
{
unsigned long offset = reloc_offset();
struct msChunks *_msChunks = PTRRELOC(&msChunks);
return addr >> _msChunks->chunk_shift;
return addr >> MSCHUNKS_CHUNK_SHIFT;
}
static inline unsigned long
chunk_offset(unsigned long addr)
static inline unsigned long phys_to_abs(unsigned long pa)
{
unsigned long offset = reloc_offset();
struct msChunks *_msChunks = PTRRELOC(&msChunks);
unsigned long chunk;
return addr & _msChunks->chunk_mask;
/* This is a no-op on non-iSeries */
if (!firmware_has_feature(FW_FEATURE_ISERIES))
return pa;
chunk = addr_to_chunk(pa);
if (chunk < mschunks_map.num_chunks)
chunk = mschunks_map.mapping[chunk];
return chunk_to_addr(chunk) + (pa & MSCHUNKS_OFFSET_MASK);
}
static inline unsigned long
abs_chunk(unsigned long pchunk)
{
unsigned long offset = reloc_offset();
struct msChunks *_msChunks = PTRRELOC(&msChunks);
if ( pchunk >= _msChunks->num_chunks ) {
return pchunk;
}
return PTRRELOC(_msChunks->abs)[pchunk];
}
/* A macro so it can take pointers or unsigned long. */
#define phys_to_abs(pa) \
({ unsigned long _pa = (unsigned long)(pa); \
chunk_to_addr(abs_chunk(addr_to_chunk(_pa))) + chunk_offset(_pa); \
})
static inline unsigned long
physRpn_to_absRpn(unsigned long rpn)
{
unsigned long pa = rpn << PAGE_SHIFT;
unsigned long aa = phys_to_abs(pa);
return (aa >> PAGE_SHIFT);
}
/* A macro so it can take pointers or unsigned long. */
#define abs_to_phys(aa) lmb_abs_to_phys((unsigned long)(aa))
#else /* !CONFIG_MSCHUNKS */
#define chunk_to_addr(chunk) ((unsigned long)(chunk))
#define addr_to_chunk(addr) (addr)
#define chunk_offset(addr) (0)
#define abs_chunk(pchunk) (pchunk)
#define phys_to_abs(pa) (pa)
#define physRpn_to_absRpn(rpn) (rpn)
#define abs_to_phys(aa) (aa)
#endif /* !CONFIG_MSCHUNKS */
/* Convenience macros */
#define virt_to_abs(va) phys_to_abs(__pa(va))
#define abs_to_virt(aa) __va(abs_to_phys(aa))
#define abs_to_virt(aa) __va(aa)
#endif /* _ABS_ADDR_H */

47
include/asm-ppc64/cputable.h
View File

@ -56,11 +56,6 @@ struct cpu_spec {
* BHT, SPD, etc... from head.S before branching to identify_machine
*/
cpu_setup_t cpu_setup;
/* This is used to identify firmware features which are available
* to the kernel.
*/
unsigned long firmware_features;
};
extern struct cpu_spec cpu_specs[];
@ -71,39 +66,6 @@ static inline unsigned long cpu_has_feature(unsigned long feature)
return cur_cpu_spec->cpu_features & feature;
}
/* firmware feature bitmask values */
#define FIRMWARE_MAX_FEATURES 63
#define FW_FEATURE_PFT (1UL<<0)
#define FW_FEATURE_TCE (1UL<<1)
#define FW_FEATURE_SPRG0 (1UL<<2)
#define FW_FEATURE_DABR (1UL<<3)
#define FW_FEATURE_COPY (1UL<<4)
#define FW_FEATURE_ASR (1UL<<5)
#define FW_FEATURE_DEBUG (1UL<<6)
#define FW_FEATURE_TERM (1UL<<7)
#define FW_FEATURE_PERF (1UL<<8)
#define FW_FEATURE_DUMP (1UL<<9)
#define FW_FEATURE_INTERRUPT (1UL<<10)
#define FW_FEATURE_MIGRATE (1UL<<11)
#define FW_FEATURE_PERFMON (1UL<<12)
#define FW_FEATURE_CRQ (1UL<<13)
#define FW_FEATURE_VIO (1UL<<14)
#define FW_FEATURE_RDMA (1UL<<15)
#define FW_FEATURE_LLAN (1UL<<16)
#define FW_FEATURE_BULK (1UL<<17)
#define FW_FEATURE_XDABR (1UL<<18)
#define FW_FEATURE_MULTITCE (1UL<<19)
#define FW_FEATURE_SPLPAR (1UL<<20)
typedef struct {
unsigned long val;
char * name;
} firmware_feature_t;
extern firmware_feature_t firmware_features_table[];
#endif /* __ASSEMBLY__ */
/* CPU kernel features */
@ -140,10 +102,8 @@ extern firmware_feature_t firmware_features_table[];
#define CPU_FTR_MMCRA_SIHV ASM_CONST(0x0000080000000000)
#define CPU_FTR_CTRL ASM_CONST(0x0000100000000000)
/* Platform firmware features */
#define FW_FTR_ ASM_CONST(0x0000000000000001)
#ifndef __ASSEMBLY__
#define COMMON_USER_PPC64 (PPC_FEATURE_32 | PPC_FEATURE_64 | \
PPC_FEATURE_HAS_FPU | PPC_FEATURE_HAS_MMU)
@ -156,10 +116,9 @@ extern firmware_feature_t firmware_features_table[];
#define CPU_FTR_PPCAS_ARCH_V2 (CPU_FTR_PPCAS_ARCH_V2_BASE)
#else
#define CPU_FTR_PPCAS_ARCH_V2 (CPU_FTR_PPCAS_ARCH_V2_BASE | CPU_FTR_16M_PAGE)
#endif
#endif /* CONFIG_PPC_ISERIES */
#define COMMON_PPC64_FW (0)
#endif
#endif /* __ASSEMBLY */
#ifdef __ASSEMBLY__

101
include/asm-ppc64/firmware.h Normal file
View File

@ -0,0 +1,101 @@
/*
* include/asm-ppc64/firmware.h
*
* Extracted from include/asm-ppc64/cputable.h
*
* Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
*
* Modifications for ppc64:
* Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
*
* 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_PPC_FIRMWARE_H
#define __ASM_PPC_FIRMWARE_H
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
/* firmware feature bitmask values */
#define FIRMWARE_MAX_FEATURES 63
#define FW_FEATURE_PFT (1UL<<0)
#define FW_FEATURE_TCE (1UL<<1)
#define FW_FEATURE_SPRG0 (1UL<<2)
#define FW_FEATURE_DABR (1UL<<3)
#define FW_FEATURE_COPY (1UL<<4)
#define FW_FEATURE_ASR (1UL<<5)
#define FW_FEATURE_DEBUG (1UL<<6)
#define FW_FEATURE_TERM (1UL<<7)
#define FW_FEATURE_PERF (1UL<<8)
#define FW_FEATURE_DUMP (1UL<<9)
#define FW_FEATURE_INTERRUPT (1UL<<10)
#define FW_FEATURE_MIGRATE (1UL<<11)
#define FW_FEATURE_PERFMON (1UL<<12)
#define FW_FEATURE_CRQ (1UL<<13)
#define FW_FEATURE_VIO (1UL<<14)
#define FW_FEATURE_RDMA (1UL<<15)
#define FW_FEATURE_LLAN (1UL<<16)
#define FW_FEATURE_BULK (1UL<<17)
#define FW_FEATURE_XDABR (1UL<<18)
#define FW_FEATURE_MULTITCE (1UL<<19)
#define FW_FEATURE_SPLPAR (1UL<<20)
#define FW_FEATURE_ISERIES (1UL<<21)
enum {
FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
FW_FEATURE_BULK | FW_FEATURE_XDABR | FW_FEATURE_MULTITCE |
FW_FEATURE_SPLPAR,
FW_FEATURE_PSERIES_ALWAYS = 0,
FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES,
FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES,
FW_FEATURE_POSSIBLE =
#ifdef CONFIG_PPC_PSERIES
FW_FEATURE_PSERIES_POSSIBLE |
#endif
#ifdef CONFIG_PPC_ISERIES
FW_FEATURE_ISERIES_POSSIBLE |
#endif
0,
FW_FEATURE_ALWAYS =
#ifdef CONFIG_PPC_PSERIES
FW_FEATURE_PSERIES_ALWAYS &
#endif
#ifdef CONFIG_PPC_ISERIES
FW_FEATURE_ISERIES_ALWAYS &
#endif
FW_FEATURE_POSSIBLE,
};
/* This is used to identify firmware features which are available
* to the kernel.
*/
extern unsigned long ppc64_firmware_features;
static inline unsigned long firmware_has_feature(unsigned long feature)
{
return (FW_FEATURE_ALWAYS & feature) ||
(FW_FEATURE_POSSIBLE & ppc64_firmware_features & feature);
}
#ifdef CONFIG_PPC_PSERIES
typedef struct {
unsigned long val;
char * name;
} firmware_feature_t;
extern firmware_feature_t firmware_features_table[];
#endif
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* __ASM_PPC_FIRMWARE_H */

2
include/asm-ppc64/imalloc.h
View File

@ -6,7 +6,7 @@
*/
#define PHBS_IO_BASE VMALLOC_END
#define IMALLOC_BASE (PHBS_IO_BASE + 0x80000000ul) /* Reserve 2 gigs for PHBs */
#define IMALLOC_END (VMALLOC_START + EADDR_MASK)
#define IMALLOC_END (VMALLOC_START + PGTABLE_RANGE)
/* imalloc region types */

3
include/asm-ppc64/iommu.h
View File

@ -104,9 +104,6 @@ extern void iommu_devnode_init_pSeries(struct device_node *dn);
#ifdef CONFIG_PPC_ISERIES
/* Initializes tables for bio buses */
extern void __init iommu_vio_init(void);
struct iSeries_Device_Node;
/* Creates table for an individual device node */
extern void iommu_devnode_init_iSeries(struct iSeries_Device_Node *dn);

1
include/asm-ppc64/lmb.h
View File

@ -22,7 +22,6 @@
struct lmb_property {
unsigned long base;
unsigned long physbase;
unsigned long size;
};

3
include/asm-ppc64/machdep.h
View File

@ -140,6 +140,9 @@ struct machdep_calls {
/* Idle loop for this platform, leave empty for default idle loop */
int (*idle_loop)(void);
/* Function to enable pmcs for this platform, called once per cpu. */
void (*enable_pmcs)(void);
};
extern int default_idle(void);

16
include/asm-ppc64/mmu.h
View File

@ -28,9 +28,12 @@
#define STE_VSID_SHIFT 12
/* Location of cpu0's segment table */
#define STAB0_PAGE 0x9
#define STAB0_PAGE 0x6
#define STAB0_PHYS_ADDR (STAB0_PAGE<<PAGE_SHIFT)
#define STAB0_VIRT_ADDR (KERNELBASE+STAB0_PHYS_ADDR)
#ifndef __ASSEMBLY__
extern char initial_stab[];
#endif /* ! __ASSEMBLY */
/*
* SLB
@ -259,8 +262,10 @@ extern void stabs_alloc(void);
#define VSID_BITS 36
#define VSID_MODULUS ((1UL<<VSID_BITS)-1)
#define CONTEXT_BITS 20
#define USER_ESID_BITS 15
#define CONTEXT_BITS 19
#define USER_ESID_BITS 16
#define USER_VSID_RANGE (1UL << (USER_ESID_BITS + SID_SHIFT))
/*
* This macro generates asm code to compute the VSID scramble
@ -302,8 +307,7 @@ typedef unsigned long mm_context_id_t;
typedef struct {
mm_context_id_t id;
#ifdef CONFIG_HUGETLB_PAGE
pgd_t *huge_pgdir;
u16 htlb_segs; /* bitmask */
u16 low_htlb_areas, high_htlb_areas;
#endif
} mm_context_t;

7
include/asm-ppc64/naca.h
View File

@ -12,8 +12,6 @@
#include <asm/types.h>
#ifndef __ASSEMBLY__
struct naca_struct {
/* Kernel only data - undefined for user space */
void *xItVpdAreas; /* VPD Data 0x00 */
@ -23,9 +21,4 @@ struct naca_struct {
extern struct naca_struct naca;
#endif /* __ASSEMBLY__ */
#define NACA_PAGE 0x4
#define NACA_PHYS_ADDR (NACA_PAGE<<PAGE_SHIFT)
#endif /* _NACA_H */

55
include/asm-ppc64/page.h
View File

@ -37,39 +37,45 @@
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
/* For 64-bit processes the hugepage range is 1T-1.5T */
#define TASK_HPAGE_BASE ASM_CONST(0x0000010000000000)
#define TASK_HPAGE_END ASM_CONST(0x0000018000000000)
#define HTLB_AREA_SHIFT 40
#define HTLB_AREA_SIZE (1UL << HTLB_AREA_SHIFT)
#define GET_HTLB_AREA(x) ((x) >> HTLB_AREA_SHIFT)
#define LOW_ESID_MASK(addr, len) (((1U << (GET_ESID(addr+len-1)+1)) \
- (1U << GET_ESID(addr))) & 0xffff)
#define HTLB_AREA_MASK(addr, len) (((1U << (GET_HTLB_AREA(addr+len-1)+1)) \
- (1U << GET_HTLB_AREA(addr))) & 0xffff)
#define ARCH_HAS_HUGEPAGE_ONLY_RANGE
#define ARCH_HAS_PREPARE_HUGEPAGE_RANGE
#define ARCH_HAS_SETCLEAR_HUGE_PTE
#define touches_hugepage_low_range(mm, addr, len) \
(LOW_ESID_MASK((addr), (len)) & mm->context.htlb_segs)
#define touches_hugepage_high_range(addr, len) \
(((addr) > (TASK_HPAGE_BASE-(len))) && ((addr) < TASK_HPAGE_END))
(LOW_ESID_MASK((addr), (len)) & (mm)->context.low_htlb_areas)
#define touches_hugepage_high_range(mm, addr, len) \
(HTLB_AREA_MASK((addr), (len)) & (mm)->context.high_htlb_areas)
#define __within_hugepage_low_range(addr, len, segmask) \
((LOW_ESID_MASK((addr), (len)) | (segmask)) == (segmask))
#define within_hugepage_low_range(addr, len) \
__within_hugepage_low_range((addr), (len), \
current->mm->context.htlb_segs)
#define within_hugepage_high_range(addr, len) (((addr) >= TASK_HPAGE_BASE) \
&& ((addr)+(len) <= TASK_HPAGE_END) && ((addr)+(len) >= (addr)))
current->mm->context.low_htlb_areas)
#define __within_hugepage_high_range(addr, len, zonemask) \
((HTLB_AREA_MASK((addr), (len)) | (zonemask)) == (zonemask))
#define within_hugepage_high_range(addr, len) \
__within_hugepage_high_range((addr), (len), \
current->mm->context.high_htlb_areas)
#define is_hugepage_only_range(mm, addr, len) \
(touches_hugepage_high_range((addr), (len)) || \
(touches_hugepage_high_range((mm), (addr), (len)) || \
touches_hugepage_low_range((mm), (addr), (len)))
#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
#define in_hugepage_area(context, addr) \
(cpu_has_feature(CPU_FTR_16M_PAGE) && \
( (((addr) >= TASK_HPAGE_BASE) && ((addr) < TASK_HPAGE_END)) || \
( ((1 << GET_HTLB_AREA(addr)) & (context).high_htlb_areas) || \
( ((addr) < 0x100000000L) && \
((1 << GET_ESID(addr)) & (context).htlb_segs) ) ) )
((1 << GET_ESID(addr)) & (context).low_htlb_areas) ) ) )
#else /* !CONFIG_HUGETLB_PAGE */
@ -125,36 +131,42 @@ extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct pag
* Entries in the pte table are 64b, while entries in the pgd & pmd are 32b.
*/
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned int pmd; } pmd_t;
typedef struct { unsigned int pgd; } pgd_t;
typedef struct { unsigned long pmd; } pmd_t;
typedef struct { unsigned long pud; } pud_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
#define pte_val(x) ((x).pte)
#define pmd_val(x) ((x).pmd)
#define pud_val(x) ((x).pud)
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)
#define __pte(x) ((pte_t) { (x) } )
#define __pmd(x) ((pmd_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
#define __pte(x) ((pte_t) { (x) })
#define __pmd(x) ((pmd_t) { (x) })
#define __pud(x) ((pud_t) { (x) })
#define __pgd(x) ((pgd_t) { (x) })
#define __pgprot(x) ((pgprot_t) { (x) })
#else
/*
* .. while these make it easier on the compiler
*/
typedef unsigned long pte_t;
typedef unsigned int pmd_t;
typedef unsigned int pgd_t;
typedef unsigned long pmd_t;
typedef unsigned long pud_t;
typedef unsigned long pgd_t;
typedef unsigned long pgprot_t;
#define pte_val(x) (x)
#define pmd_val(x) (x)
#define pud_val(x) (x)
#define pgd_val(x) (x)
#define pgprot_val(x) (x)
#define __pte(x) (x)
#define __pmd(x) (x)
#define __pud(x) (x)
#define __pgd(x) (x)
#define __pgprot(x) (x)
@ -208,9 +220,6 @@ extern u64 ppc64_pft_size; /* Log 2 of page table size */
#define USER_REGION_ID (0UL)
#define REGION_ID(ea) (((unsigned long)(ea)) >> REGION_SHIFT)
#define __bpn_to_ba(x) ((((unsigned long)(x)) << PAGE_SHIFT) + KERNELBASE)
#define __ba_to_bpn(x) ((((unsigned long)(x)) & ~REGION_MASK) >> PAGE_SHIFT)
#define __va(x) ((void *)((unsigned long)(x) + KERNELBASE))
#ifdef CONFIG_DISCONTIGMEM

93
include/asm-ppc64/pgalloc.h
View File

@ -6,7 +6,12 @@
#include <linux/cpumask.h>
#include <linux/percpu.h>
extern kmem_cache_t *zero_cache;
extern kmem_cache_t *pgtable_cache[];
#define PTE_CACHE_NUM 0
#define PMD_CACHE_NUM 1
#define PUD_CACHE_NUM 1
#define PGD_CACHE_NUM 0
/*
* This program is free software; you can redistribute it and/or
@ -15,30 +20,40 @@ extern kmem_cache_t *zero_cache;
* 2 of the License, or (at your option) any later version.
*/
static inline pgd_t *
pgd_alloc(struct mm_struct *mm)
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return kmem_cache_alloc(zero_cache, GFP_KERNEL);
return kmem_cache_alloc(pgtable_cache[PGD_CACHE_NUM], GFP_KERNEL);
}
static inline void
pgd_free(pgd_t *pgd)
static inline void pgd_free(pgd_t *pgd)
{
kmem_cache_free(zero_cache, pgd);
kmem_cache_free(pgtable_cache[PGD_CACHE_NUM], pgd);
}
#define pgd_populate(MM, PGD, PUD) pgd_set(PGD, PUD)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return kmem_cache_alloc(pgtable_cache[PUD_CACHE_NUM],
GFP_KERNEL|__GFP_REPEAT);
}
static inline void pud_free(pud_t *pud)
{
kmem_cache_free(pgtable_cache[PUD_CACHE_NUM], pud);
}
#define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD)
static inline pmd_t *
pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return kmem_cache_alloc(zero_cache, GFP_KERNEL|__GFP_REPEAT);
return kmem_cache_alloc(pgtable_cache[PMD_CACHE_NUM],
GFP_KERNEL|__GFP_REPEAT);
}
static inline void
pmd_free(pmd_t *pmd)
static inline void pmd_free(pmd_t *pmd)
{
kmem_cache_free(zero_cache, pmd);
kmem_cache_free(pgtable_cache[PMD_CACHE_NUM], pmd);
}
#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte)
@ -47,44 +62,58 @@ pmd_free(pmd_t *pmd)
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{
return kmem_cache_alloc(zero_cache, GFP_KERNEL|__GFP_REPEAT);
return kmem_cache_alloc(pgtable_cache[PTE_CACHE_NUM],
GFP_KERNEL|__GFP_REPEAT);
}
static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
pte_t *pte = kmem_cache_alloc(zero_cache, GFP_KERNEL|__GFP_REPEAT);
if (pte)
return virt_to_page(pte);
return NULL;
return virt_to_page(pte_alloc_one_kernel(mm, address));
}
static inline void pte_free_kernel(pte_t *pte)
{
kmem_cache_free(zero_cache, pte);
kmem_cache_free(pgtable_cache[PTE_CACHE_NUM], pte);
}
static inline void pte_free(struct page *ptepage)
{
kmem_cache_free(zero_cache, page_address(ptepage));
pte_free_kernel(page_address(ptepage));
}
struct pte_freelist_batch
#define PGF_CACHENUM_MASK 0xf
typedef struct pgtable_free {
unsigned long val;
} pgtable_free_t;
static inline pgtable_free_t pgtable_free_cache(void *p, int cachenum,
unsigned long mask)
{
struct rcu_head rcu;
unsigned int index;
struct page * pages[0];
};
BUG_ON(cachenum > PGF_CACHENUM_MASK);
#define PTE_FREELIST_SIZE ((PAGE_SIZE - sizeof(struct pte_freelist_batch)) / \
sizeof(struct page *))
return (pgtable_free_t){.val = ((unsigned long) p & ~mask) | cachenum};
}
extern void pte_free_now(struct page *ptepage);
extern void pte_free_submit(struct pte_freelist_batch *batch);
static inline void pgtable_free(pgtable_free_t pgf)
{
void *p = (void *)(pgf.val & ~PGF_CACHENUM_MASK);
int cachenum = pgf.val & PGF_CACHENUM_MASK;
DECLARE_PER_CPU(struct pte_freelist_batch *, pte_freelist_cur);
kmem_cache_free(pgtable_cache[cachenum], p);
}
void __pte_free_tlb(struct mmu_gather *tlb, struct page *ptepage);
#define __pmd_free_tlb(tlb, pmd) __pte_free_tlb(tlb, virt_to_page(pmd))
void pgtable_free_tlb(struct mmu_gather *tlb, pgtable_free_t pgf);
#define __pte_free_tlb(tlb, ptepage) \
pgtable_free_tlb(tlb, pgtable_free_cache(page_address(ptepage), \
PTE_CACHE_NUM, PTE_TABLE_SIZE-1))
#define __pmd_free_tlb(tlb, pmd) \
pgtable_free_tlb(tlb, pgtable_free_cache(pmd, \
PMD_CACHE_NUM, PMD_TABLE_SIZE-1))
#define __pud_free_tlb(tlb, pmd) \
pgtable_free_tlb(tlb, pgtable_free_cache(pud, \
PUD_CACHE_NUM, PUD_TABLE_SIZE-1))
#define check_pgt_cache() do { } while (0)

92
include/asm-ppc64/pgtable.h
View File

@ -15,19 +15,24 @@
#include <asm/tlbflush.h>
#endif /* __ASSEMBLY__ */
#include <asm-generic/pgtable-nopud.h>
/*
* Entries per page directory level. The PTE level must use a 64b record
* for each page table entry. The PMD and PGD level use a 32b record for
* each entry by assuming that each entry is page aligned.
*/
#define PTE_INDEX_SIZE 9
#define PMD_INDEX_SIZE 10
#define PGD_INDEX_SIZE 10
#define PMD_INDEX_SIZE 7
#define PUD_INDEX_SIZE 7
#define PGD_INDEX_SIZE 9
#define PTE_TABLE_SIZE (sizeof(pte_t) << PTE_INDEX_SIZE)
#define PMD_TABLE_SIZE (sizeof(pmd_t) << PMD_INDEX_SIZE)
#define PUD_TABLE_SIZE (sizeof(pud_t) << PUD_INDEX_SIZE)
#define PGD_TABLE_SIZE (sizeof(pgd_t) << PGD_INDEX_SIZE)
#define PTRS_PER_PTE (1 << PTE_INDEX_SIZE)
#define PTRS_PER_PMD (1 << PMD_INDEX_SIZE)
#define PTRS_PER_PUD (1 << PMD_INDEX_SIZE)
#define PTRS_PER_PGD (1 << PGD_INDEX_SIZE)
/* PMD_SHIFT determines what a second-level page table entry can map */
@ -35,8 +40,13 @@
#define PMD_SIZE (1UL << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE-1))
/* PGDIR_SHIFT determines what a third-level page table entry can map */
#define PGDIR_SHIFT (PMD_SHIFT + PMD_INDEX_SIZE)
/* PUD_SHIFT determines what a third-level page table entry can map */
#define PUD_SHIFT (PMD_SHIFT + PMD_INDEX_SIZE)
#define PUD_SIZE (1UL << PUD_SHIFT)
#define PUD_MASK (~(PUD_SIZE-1))
/* PGDIR_SHIFT determines what a fourth-level page table entry can map */
#define PGDIR_SHIFT (PUD_SHIFT + PUD_INDEX_SIZE)
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE-1))
@ -45,15 +55,23 @@
/*
* Size of EA range mapped by our pagetables.
*/
#define EADDR_SIZE (PTE_INDEX_SIZE + PMD_INDEX_SIZE + \
PGD_INDEX_SIZE + PAGE_SHIFT)
#define EADDR_MASK ((1UL << EADDR_SIZE) - 1)
#define PGTABLE_EADDR_SIZE (PTE_INDEX_SIZE + PMD_INDEX_SIZE + \
PUD_INDEX_SIZE + PGD_INDEX_SIZE + PAGE_SHIFT)
#define PGTABLE_RANGE (1UL << PGTABLE_EADDR_SIZE)
#if TASK_SIZE_USER64 > PGTABLE_RANGE
#error TASK_SIZE_USER64 exceeds pagetable range
#endif
#if TASK_SIZE_USER64 > (1UL << (USER_ESID_BITS + SID_SHIFT))
#error TASK_SIZE_USER64 exceeds user VSID range
#endif
/*
* Define the address range of the vmalloc VM area.
*/
#define VMALLOC_START (0xD000000000000000ul)
#define VMALLOC_SIZE (0x10000000000UL)
#define VMALLOC_SIZE (0x80000000000UL)
#define VMALLOC_END (VMALLOC_START + VMALLOC_SIZE)
/*
@ -154,8 +172,6 @@ extern unsigned long empty_zero_page[PAGE_SIZE/sizeof(unsigned long)];
#ifndef __ASSEMBLY__
int hash_huge_page(struct mm_struct *mm, unsigned long access,
unsigned long ea, unsigned long vsid, int local);
void hugetlb_mm_free_pgd(struct mm_struct *mm);
#endif /* __ASSEMBLY__ */
#define HAVE_ARCH_UNMAPPED_AREA
@ -163,7 +179,6 @@ void hugetlb_mm_free_pgd(struct mm_struct *mm);
#else
#define hash_huge_page(mm,a,ea,vsid,local) -1
#define hugetlb_mm_free_pgd(mm) do {} while (0)
#endif
@ -197,39 +212,45 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t pgprot)
#define pte_pfn(x) ((unsigned long)((pte_val(x) >> PTE_SHIFT)))
#define pte_page(x) pfn_to_page(pte_pfn(x))
#define pmd_set(pmdp, ptep) \
(pmd_val(*(pmdp)) = __ba_to_bpn(ptep))
#define pmd_set(pmdp, ptep) ({BUG_ON((u64)ptep < KERNELBASE); pmd_val(*(pmdp)) = (unsigned long)(ptep);})
#define pmd_none(pmd) (!pmd_val(pmd))
#define pmd_bad(pmd) (pmd_val(pmd) == 0)
#define pmd_present(pmd) (pmd_val(pmd) != 0)
#define pmd_clear(pmdp) (pmd_val(*(pmdp)) = 0)
#define pmd_page_kernel(pmd) (__bpn_to_ba(pmd_val(pmd)))
#define pmd_page_kernel(pmd) (pmd_val(pmd))
#define pmd_page(pmd) virt_to_page(pmd_page_kernel(pmd))
#define pud_set(pudp, pmdp) (pud_val(*(pudp)) = (__ba_to_bpn(pmdp)))
#define pud_set(pudp, pmdp) (pud_val(*(pudp)) = (unsigned long)(pmdp))
#define pud_none(pud) (!pud_val(pud))
#define pud_bad(pud) ((pud_val(pud)) == 0UL)
#define pud_present(pud) (pud_val(pud) != 0UL)
#define pud_clear(pudp) (pud_val(*(pudp)) = 0UL)
#define pud_page(pud) (__bpn_to_ba(pud_val(pud)))
#define pud_bad(pud) ((pud_val(pud)) == 0)
#define pud_present(pud) (pud_val(pud) != 0)
#define pud_clear(pudp) (pud_val(*(pudp)) = 0)
#define pud_page(pud) (pud_val(pud))
#define pgd_set(pgdp, pudp) ({pgd_val(*(pgdp)) = (unsigned long)(pudp);})
#define pgd_none(pgd) (!pgd_val(pgd))
#define pgd_bad(pgd) (pgd_val(pgd) == 0)
#define pgd_present(pgd) (pgd_val(pgd) != 0)
#define pgd_clear(pgdp) (pgd_val(*(pgdp)) = 0)
#define pgd_page(pgd) (pgd_val(pgd))
/*
* Find an entry in a page-table-directory. We combine the address region
* (the high order N bits) and the pgd portion of the address.
*/
/* to avoid overflow in free_pgtables we don't use PTRS_PER_PGD here */
#define pgd_index(address) (((address) >> (PGDIR_SHIFT)) & 0x7ff)
#define pgd_index(address) (((address) >> (PGDIR_SHIFT)) & 0x1ff)
#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
/* Find an entry in the second-level page table.. */
#define pmd_offset(pudp,addr) \
((pmd_t *) pud_page(*(pudp)) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)))
#define pud_offset(pgdp, addr) \
(((pud_t *) pgd_page(*(pgdp))) + (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1)))
#define pmd_offset(pudp,addr) \
(((pmd_t *) pud_page(*(pudp))) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)))
/* Find an entry in the third-level page table.. */
#define pte_offset_kernel(dir,addr) \
((pte_t *) pmd_page_kernel(*(dir)) \
+ (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
(((pte_t *) pmd_page_kernel(*(dir))) + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
#define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr))
#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir), (addr))
@ -458,23 +479,18 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long addr,
#define pte_same(A,B) (((pte_val(A) ^ pte_val(B)) & ~_PAGE_HPTEFLAGS) == 0)
#define pmd_ERROR(e) \
printk("%s:%d: bad pmd %08x.\n", __FILE__, __LINE__, pmd_val(e))
printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
#define pud_ERROR(e) \
printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pud_val(e))
#define pgd_ERROR(e) \
printk("%s:%d: bad pgd %08x.\n", __FILE__, __LINE__, pgd_val(e))
printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
extern pgd_t swapper_pg_dir[];
extern void paging_init(void);
/*
* Because the huge pgtables are only 2 level, they can take
* at most around 4M, much less than one hugepage which the
* process is presumably entitled to use. So we don't bother
* freeing up the pagetables on unmap, and wait until
* destroy_context() to clean up the lot.
*/
#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) \
do { } while (0)
free_pgd_range(tlb, addr, end, floor, ceiling)
/*
* This gets called at the end of handling a page fault, when

2
include/asm-ppc64/pmc.h
View File

@ -26,4 +26,6 @@ typedef void (*perf_irq_t)(struct pt_regs *);
int reserve_pmc_hardware(perf_irq_t new_perf_irq);
void release_pmc_hardware(void);
void power4_enable_pmcs(void);
#endif /* _PPC64_PMC_H */

4
include/asm-ppc64/processor.h
View File

@ -382,8 +382,8 @@ extern long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
extern struct task_struct *last_task_used_math;
extern struct task_struct *last_task_used_altivec;
/* 64-bit user address space is 41-bits (2TBs user VM) */
#define TASK_SIZE_USER64 (0x0000020000000000UL)
/* 64-bit user address space is 44-bits (16TB user VM) */
#define TASK_SIZE_USER64 (0x0000100000000000UL)
/*
* 32-bit user address space is 4GB - 1 page

14
include/asm-ppc64/prom.h
View File

@ -22,13 +22,15 @@
#define RELOC(x) (*PTRRELOC(&(x)))
/* Definitions used by the flattened device tree */
#define OF_DT_HEADER 0xd00dfeed /* 4: version, 4: total size */
#define OF_DT_BEGIN_NODE 0x1 /* Start node: full name */
#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_PROP 0x3 /* Property: name off, size,
* content */
#define OF_DT_NOP 0x4 /* nop */
#define OF_DT_END 0x9
#define OF_DT_VERSION 1
#define OF_DT_VERSION 0x10
/*
* This is what gets passed to the kernel by prom_init or kexec
@ -54,7 +56,9 @@ struct boot_param_header
u32 version; /* format version */
u32 last_comp_version; /* last compatible version */
/* version 2 fields below */
u32 boot_cpuid_phys; /* Which physical CPU id we're booting on */
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 */
};

4
include/asm-ppc64/system.h
View File

@ -88,7 +88,7 @@ DEBUGGER_BOILERPLATE(debugger_dabr_match)
DEBUGGER_BOILERPLATE(debugger_fault_handler)
#ifdef CONFIG_XMON
extern void xmon_init(void);
extern void xmon_init(int enable);
#endif
#else
@ -302,5 +302,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
#define arch_align_stack(x) (x)
extern unsigned long reloc_offset(void);
#endif /* __KERNEL__ */
#endif

10
include/asm-ppc64/vio.h
View File

@ -56,6 +56,9 @@ const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length);
int vio_get_irq(struct vio_dev *dev);
int vio_enable_interrupts(struct vio_dev *dev);
int vio_disable_interrupts(struct vio_dev *dev);
extern struct vio_dev * __devinit vio_register_device_common(
struct vio_dev *viodev, char *name, char *type,
uint32_t unit_address, struct iommu_table *iommu_table);
extern struct dma_mapping_ops vio_dma_ops;
@ -95,9 +98,16 @@ struct vio_dev {
struct device dev;
};
extern struct vio_dev vio_bus_device;
static inline struct vio_dev *to_vio_dev(struct device *dev)
{
return container_of(dev, struct vio_dev, dev);
}
extern int vio_bus_init(int (*is_match)(const struct vio_device_id *id,
const struct vio_dev *dev),
void (*)(struct vio_dev *),
void (*)(struct device *));
#endif /* _ASM_VIO_H */