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Commit 4a1d5133 authored by Patrick Mochel's avatar Patrick Mochel
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Merge osdl.org:/home/mochel/src/kernel/devel/linux-2.5-virgin 

into osdl.org:/home/mochel/src/kernel/devel/linux-2.5-power
parents c4e3aa81 21fbda93
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Showing with 31 additions and 1253 deletions
arch/arm/Kconfig
View file @ 4a1d5133
......@@ -97,14 +97,6 @@ config ARCH_ANAKIN
Bosch DAB module
* An audio card ( 4 * 40W, AC97 Codec, I2S)
config ARCH_ARCA5K
bool "Archimedes/A5000"
help
This selects what ARM system you wish to build the kernel for. It
also selects to some extent the CPU type. If you are unsure what
to set this option to, please consult any information supplied with
your system.
config ARCH_CLPS7500
bool "Cirrus-CL-PS7500FE"
......@@ -167,8 +159,6 @@ config ARCH_SHARK
endchoice
source "arch/arm/mach-arc/Kconfig"
source "arch/arm/mach-clps711x/Kconfig"
source "arch/arm/mach-epxa10db/Kconfig"
......@@ -184,7 +174,7 @@ source "arch/arm/mach-sa1100/Kconfig"
# Definitions to make life easier
config ARCH_ACORN
bool
depends on ARCH_ARCA5K || ARCH_RPC
depends on ARCH_RPC
default y
#####################################################################
......@@ -226,12 +216,6 @@ comment "Processor Type"
# Figure out whether this system uses 26-bit or 32-bit CPUs.
config CPU_32
bool
depends on !ARCH_ARCA5K
default y
config CPU_26
bool
depends on ARCH_ARCA5K
default y
# Select CPU types depending on the architecture selected. This selects
......@@ -656,7 +640,7 @@ config FPE_NWFPE_XP
config FPE_FASTFPE
bool "FastFPE math emulation (EXPERIMENTAL)"
depends on !CPU_26 && !CPU_32v3 && EXPERIMENTAL
depends on !CPU_32v3 && EXPERIMENTAL
---help---
Say Y here to include the FAST floating point emulator in the kernel.
This is an experimental much faster emulator which now also has full
......
arch/arm/Makefile
View file @ 4a1d5133
......@@ -30,6 +30,9 @@ AS += -EB
LD += -EB
endif
check_gcc = $(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi)
comma = ,
# Select CPU dependent flags. Note that order of declaration is important;
# the options further down the list override previous items.
#
......@@ -40,7 +43,7 @@ apcs-$(CONFIG_CPU_26) :=-mapcs-26 -mcpu=arm3
# Note that GCC does not numerically define an architecture version
# macro, but instead defines a whole series of macros which makes
# testing for a specific architecture or later rather impossible.
arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 -march=armv5te
arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call check_gcc,-march=armv5te,-march=armv4 -Wa$(comma)-mxscale)
arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4
arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3
......@@ -53,7 +56,7 @@ tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
tune-$(CONFIG_CPU_XSCALE) :=-mtune=xscale
tune-$(CONFIG_CPU_XSCALE) :=$(call check_gcc,-mtune=xscale,-mtune=strongarm110)
# Force -mno-fpu to be passed to the assembler. Some versions of gcc don't
# do this with -msoft-float
......
arch/arm/kernel/asm-offsets.c
View file @ 4a1d5133
......@@ -29,16 +29,16 @@
* GCC 3.0, 3.1: general bad code generation.
* GCC 3.2.0: incorrect function argument offset calculation.
* GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c
* (http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=8896)
* (http://gcc.gnu.org/PR8896) and incorrect structure
* initialisation in fs/jffs2/erase.c
*/
#if __GNUC__ < 2 || \
(__GNUC__ == 2 && __GNUC_MINOR__ < 95) || \
(__GNUC__ == 2 && __GNUC_MINOR__ == 95 && __GNUC_PATCHLEVEL__ != 0 && \
__GNUC_PATCHLEVEL__ < 3) || \
(__GNUC__ == 3 && __GNUC_MINOR__ < 2) || \
(__GNUC__ == 3 && __GNUC_MINOR__ == 2 && __GNUC_PATCHLEVEL__ < 1)
(__GNUC__ == 3 && __GNUC_MINOR__ < 3)
#error Your compiler is too buggy; it is known to miscompile kernels.
#error Known good compilers: 2.95.3, 2.95.4, 2.96, 3.2.2+PR8896
#error Known good compilers: 2.95.3, 2.95.4, 2.96, 3.3
#endif
/* Use marker if you need to separate the values later */
......
arch/arm/kernel/time.c
View file @ 4a1d5133
......@@ -174,6 +174,9 @@ void do_gettimeofday(struct timeval *tv)
int do_settimeofday(struct timespec *tv)
{
time_t wtm_sec, sec = tv->tv_sec;
long wtm_nsec, nsec = tv->tv_nsec;
if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
return -EINVAL;
......@@ -184,21 +187,21 @@ int do_settimeofday(struct timespec *tv)
* wall time. Discover what correction gettimeofday() would have
* done, and then undo it!
*/
tv->tv_nsec -= 1000 * (gettimeoffset() +
(jiffies - wall_jiffies) * USECS_PER_JIFFY);
nsec -= gettimeoffset() * NSEC_PER_USEC;
nsec -= (jiffies - wall_jiffies) * TICK_NSEC;
while (tv->tv_nsec < 0) {
tv->tv_nsec += NSEC_PER_SEC;
tv->tv_sec--;
}
wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
set_normalized_timespec(&xtime, sec, nsec);
set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
xtime.tv_sec = tv->tv_sec;
xtime.tv_nsec = tv->tv_nsec;
time_adjust = 0; /* stop active adjtime() */
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_sequnlock_irq(&xtime_lock);
clock_was_set();
return 0;
}
......
arch/arm/mach-arc/Kconfig deleted 100644 → 0
View file @ c4e3aa81
menu "Archimedes/A5000 Implementations"
# These architectures will be combined. However, until this
# is complete... Note that the ARC will take precedence over
# A5K
comment "Archimedes/A5000 Implementations (select only ONE)"
config ARCH_ARC
bool "Archimedes"
depends on ARCH_ARCA5K
help
The Acorn Archimedes was an personal computer based on an 8K ARM2
processor, released in 1987. It supported 512K of RAM and 2 800K
floppy disks. Picture and more detailed specifications at
<http://www.computingmuseum.com/museum/archi.htm>.
config ARCH_A5K
bool "A5000"
depends on ARCH_ARCA5K
help
Say Y here to to support the Acorn A5000. Linux can support the
internal IDE disk and CD-ROM interface, serial and parallel port,
and the floppy drive. Note that on some A5000s the floppy is
plugged into the wrong socket on the motherboard.
config PAGESIZE_16
bool "2MB physical memory"
depends on ARCH_ARCA5K
help
Say Y here if your Archimedes or A5000 system has only 2MB of
memory, otherwise say N. The resulting kernel will not run on a
machine with 4MB of memory.
endmenu
arch/arm/mach-arc/Makefile deleted 100644 → 0
View file @ c4e3aa81
#
# Makefile for the linux kernel.
#
# Object file lists.
obj-y := arch.o dma.o fault.o irq.o mm.o oldlatches.o \
small_page.o
obj-$(CONFIG_DEBUG_LL) += debug.o
extra-y := head.o
AFLAGS_head.o := -DTEXTADDR=$(TEXTADDR)
arch/arm/mach-arc/arch.c deleted 100644 → 0
View file @ c4e3aa81
/*
* linux/arch/arm/mach-arc/arch.c
*
* Copyright (C) 1998-2001 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Architecture specific fixups.
*/
#include <linux/config.h>
#include <linux/tty.h>
#include <linux/init.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/mach/map.h>
#include <asm/mach/arch.h>
extern void arc_init_irq(void);
#ifdef CONFIG_ARCH_ARC
MACHINE_START(ARCHIMEDES, "Acorn-Archimedes")
MAINTAINER("Dave Gilbert")
BOOT_PARAMS(0x0207c000)
INITIRQ(arc_init_irq)
MACHINE_END
#endif
#ifdef CONFIG_ARCH_A5K
MACHINE_START(A5K, "Acorn-A5000")
MAINTAINER("Russell King")
BOOT_PARAMS(0x0207c000)
INITIRQ(arc_init_irq)
MACHINE_END
#endif
arch/arm/mach-arc/debug.S deleted 100644 → 0
View file @ c4e3aa81
/*
* linux/arch/arm/kernel/debug-armo.S
*
* Copyright (C) 1999 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 26-bit debugging code
*/
#include <linux/linkage.h>
.macro addruart,rx
mov \rx, #0x03000000
orr \rx, \rx, #0x00010000
orr \rx, \rx, #0x00000fe0
.endm
.macro senduart,rd,rx
strb \rd, [\rx]
.endm
.macro busyuart,rd,rx
1002: ldrb \rd, [\rx, #0x14]
and \rd, \rd, #0x60
teq \rd, #0x60
bne 1002b
.endm
.macro waituart,rd,rx
1001: ldrb \rd, [\rx, #0x18]
tst \rd, #0x10
beq 1001b
.endm
.text
/*
* Useful debugging routines
*/
ENTRY(printhex8)
mov r1, #8
b printhex
ENTRY(printhex4)
mov r1, #4
b printhex
ENTRY(printhex2)
mov r1, #2
printhex: ldr r2, =hexbuf
add r3, r2, r1
mov r1, #0
strb r1, [r3]
1: and r1, r0, #15
mov r0, r0, lsr #4
cmp r1, #10
addlt r1, r1, #'0'
addge r1, r1, #'a' - 10
strb r1, [r3, #-1]!
teq r3, r2
bne 1b
mov r0, r2
b printascii
.ltorg
ENTRY(printascii)
addruart r3
b 2f
1: waituart r2, r3
senduart r1, r3
busyuart r2, r3
teq r1, #'\n'
moveq r1, #'\r'
beq 1b
2: teq r0, #0
ldrneb r1, [r0], #1
teqne r1, #0
bne 1b
mov pc, lr
ENTRY(printch)
addruart r3
mov r1, r0
mov r0, #0
b 1b
.bss
hexbuf: .space 16
arch/arm/mach-arc/dma.c deleted 100644 → 0
View file @ c4e3aa81
/*
* linux/arch/arm/kernel/dma-arc.c
*
* Copyright (C) 1998-1999 Dave Gilbert / Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* DMA functions specific to Archimedes and A5000 architecture
*/
#include <linux/config.h>
#include <linux/init.h>
#include <asm/dma.h>
#include <asm/fiq.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/dma.h>
#define DPRINTK(x...) printk(KERN_DEBUG x)
#if defined(CONFIG_BLK_DEV_FD1772) || defined(CONFIG_BLK_DEV_FD1772_MODULE)
static void arc_floppy_data_enable_dma(dmach_t channel, dma_t *dma)
{
DPRINTK("arc_floppy_data_enable_dma\n");
if (dma->using_sg)
BUG();
switch (dma->dma_mode) {
case DMA_MODE_READ: { /* read */
extern unsigned char fdc1772_dma_read, fdc1772_dma_read_end;
extern void fdc1772_setupdma(unsigned int count,unsigned int addr);
unsigned long flags;
DPRINTK("enable_dma fdc1772 data read\n");
save_flags(flags);
clf();
memcpy ((void *)0x1c, (void *)&fdc1772_dma_read,
&fdc1772_dma_read_end - &fdc1772_dma_read);
fdc1772_setupdma(dma->buf.length, dma->buf.__address); /* Sets data pointer up */
enable_fiq(FIQ_FLOPPYDATA);
restore_flags(flags);
}
break;
case DMA_MODE_WRITE: { /* write */
extern unsigned char fdc1772_dma_write, fdc1772_dma_write_end;
extern void fdc1772_setupdma(unsigned int count,unsigned int addr);
unsigned long flags;
DPRINTK("enable_dma fdc1772 data write\n");
save_flags(flags);
clf();
memcpy ((void *)0x1c, (void *)&fdc1772_dma_write,
&fdc1772_dma_write_end - &fdc1772_dma_write);
fdc1772_setupdma(dma->buf.length, dma->buf.__address); /* Sets data pointer up */
enable_fiq(FIQ_FLOPPYDATA;
restore_flags(flags);
}
break;
default:
printk ("enable_dma: dma%d not initialised\n", channel);
}
}
static int arc_floppy_data_get_dma_residue(dmach_t channel, dma_t *dma)
{
extern unsigned int fdc1772_bytestogo;
/* 10/1/1999 DAG - I presume its the number of bytes left? */
return fdc1772_bytestogo;
}
static void arc_floppy_cmdend_enable_dma(dmach_t channel, dma_t *dma)
{
/* Need to build a branch at the FIQ address */
extern void fdc1772_comendhandler(void);
unsigned long flags;
DPRINTK("arc_floppy_cmdend_enable_dma\n");
/*printk("enable_dma fdc1772 command end FIQ\n");*/
save_flags(flags);
clf();
/* B fdc1772_comendhandler */
*((unsigned int *)0x1c)=0xea000000 |
(((unsigned int)fdc1772_comendhandler-(0x1c+8))/4);
restore_flags(flags);
}
static int arc_floppy_cmdend_get_dma_residue(dmach_t channel, dma_t *dma)
{
/* 10/1/1999 DAG - Presume whether there is an outstanding command? */
extern unsigned int fdc1772_fdc_int_done;
/* Explicit! If the int done is 0 then 1 int to go */
return (fdc1772_fdc_int_done==0)?1:0;
}
static void arc_disable_dma(dmach_t channel, dma_t *dma)
{
disable_fiq(dma->dma_irq);
}
static struct dma_ops arc_floppy_data_dma_ops = {
.type = "FIQDMA",
.enable = arc_floppy_data_enable_dma,
.disable = arc_disable_dma,
.residue = arc_floppy_data_get_dma_residue,
};
static struct dma_ops arc_floppy_cmdend_dma_ops = {
.type = "FIQCMD",
.enable = arc_floppy_cmdend_enable_dma,
.disable = arc_disable_dma,
.residue = arc_floppy_cmdend_get_dma_residue,
};
#endif
#ifdef CONFIG_ARCH_A5K
static struct fiq_handler fh = {
.name = "floppydata"
};
static int a5k_floppy_get_dma_residue(dmach_t channel, dma_t *dma)
{
struct pt_regs regs;
get_fiq_regs(&regs);
return regs.ARM_r9;
}
static void a5k_floppy_enable_dma(dmach_t channel, dma_t *dma)
{
struct pt_regs regs;
void *fiqhandler_start;
unsigned int fiqhandler_length;
extern void floppy_fiqsetup(unsigned long len, unsigned long addr,
unsigned long port);
if (dma->using_sg)
BUG();
if (dma->dma_mode == DMA_MODE_READ) {
extern unsigned char floppy_fiqin_start, floppy_fiqin_end;
fiqhandler_start = &floppy_fiqin_start;
fiqhandler_length = &floppy_fiqin_end - &floppy_fiqin_start;
} else {
extern unsigned char floppy_fiqout_start, floppy_fiqout_end;
fiqhandler_start = &floppy_fiqout_start;
fiqhandler_length = &floppy_fiqout_end - &floppy_fiqout_start;
}
if (claim_fiq(&fh)) {
printk("floppydma: couldn't claim FIQ.\n");
return;
}
memcpy((void *)0x1c, fiqhandler_start, fiqhandler_length);
regs.ARM_r9 = dma->buf.length;
regs.ARM_r10 = (unsigned long)dma->buf.__address;
regs.ARM_fp = FLOPPYDMA_BASE;
set_fiq_regs(&regs);
enable_fiq(dma->dma_irq);
}
static void a5k_floppy_disable_dma(dmach_t channel, dma_t *dma)
{
disable_fiq(dma->dma_irq);
release_fiq(&fh);
}
static struct dma_ops a5k_floppy_dma_ops = {
.type = "FIQDMA",
.enable = a5k_floppy_enable_dma,
.disable = a5k_floppy_disable_dma,
.residue = a5k_floppy_get_dma_residue,
};
#endif
/*
* This is virtual DMA - we don't need anything here
*/
static void sound_enable_disable_dma(dmach_t channel, dma_t *dma)
{
}
static struct dma_ops sound_dma_ops = {
.type = "VIRTUAL",
.enable = sound_enable_disable_dma,
.disable = sound_enable_disable_dma,
};
void __init arch_dma_init(dma_t *dma)
{
#if defined(CONFIG_BLK_DEV_FD1772) || defined(CONFIG_BLK_DEV_FD1772_MODULE)
if (machine_is_archimedes()) {
dma[DMA_VIRTUAL_FLOPPY0].dma_irq = FIQ_FLOPPYDATA;
dma[DMA_VIRTUAL_FLOPPY0].d_ops = &arc_floppy_data_dma_ops;
dma[DMA_VIRTUAL_FLOPPY1].dma_irq = 1;
dma[DMA_VIRTUAL_FLOPPY1].d_ops = &arc_floppy_cmdend_dma_ops;
}
#endif
#ifdef CONFIG_ARCH_A5K
if (machine_is_a5k()) {
dma[DMA_VIRTUAL_FLOPPY0].dma_irq = FIQ_FLOPPYDATA;
dma[DMA_VIRTUAL_FLOPPY0].d_ops = &a5k_floppy_dma_ops;
}
#endif
dma[DMA_VIRTUAL_SOUND].d_ops = &sound_dma_ops;
}
arch/arm/mach-arc/fault.c deleted 100644 → 0
View file @ c4e3aa81
/*
* linux/arch/arm/mm/fault-armo.c
*
* Copyright (C) 1995 Linus Torvalds
* Modifications for ARM processor (c) 1995-1999 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/mman.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#define FAULT_CODE_LDRSTRPOST 0x80
#define FAULT_CODE_LDRSTRPRE 0x40
#define FAULT_CODE_LDRSTRREG 0x20
#define FAULT_CODE_LDMSTM 0x10
#define FAULT_CODE_LDCSTC 0x08
#define FAULT_CODE_PREFETCH 0x04
#define FAULT_CODE_WRITE 0x02
#define FAULT_CODE_FORCECOW 0x01
#define DO_COW(m) ((m) & (FAULT_CODE_WRITE|FAULT_CODE_FORCECOW))
#define READ_FAULT(m) (!((m) & FAULT_CODE_WRITE))
extern int do_page_fault(unsigned long addr, int mode, struct pt_regs *regs);
extern void show_pte(struct mm_struct *mm, unsigned long addr);
/*
* Handle a data abort. Note that we have to handle a range of addresses
* on ARM2/3 for ldm. If both pages are zero-mapped, then we have to force
* a copy-on-write. However, on the second page, we always force COW.
*/
asmlinkage void
do_DataAbort(unsigned long min_addr, unsigned long max_addr, int mode, struct pt_regs *regs)
{
do_page_fault(min_addr, mode, regs);
if ((min_addr ^ max_addr) >> PAGE_SHIFT)
do_page_fault(max_addr, mode | FAULT_CODE_FORCECOW, regs);
}
asmlinkage int
do_PrefetchAbort(unsigned long addr, struct pt_regs *regs)
{
#if 0
if (the memc mapping for this page exists) {
printk ("Page in, but got abort (undefined instruction?)\n");
return 0;
}
#endif
do_page_fault(addr, FAULT_CODE_PREFETCH, regs);
return 1;
}
arch/arm/mach-arc/head.S deleted 100644 → 0
View file @ c4e3aa81
/*
* linux/arch/arm/kernel/head-armo.S
*
* Copyright (C) 1994-2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 26-bit kernel startup code
*/
#include <linux/config.h>
#include <linux/linkage.h>
#include <linux/init.h>
#include <asm/mach-types.h>
.globl swapper_pg_dir
.equ swapper_pg_dir, 0x0207d000
/*
* Entry point.
*/
__INIT
ENTRY(stext)
__entry: cmp pc, #0x02000000
ldrlt pc, LC0 @ if 0x01800000, call at 0x02080000
teq r0, #0 @ Check for old calling method
blne oldparams @ Move page if old
adr r0, LC0
ldmib r0, {r2-r5, sp} @ Setup stack
mov r0, #0
1: cmp r2, r3 @ Clear BSS
strcc r0, [r2], #4
bcc 1b
bl detect_proc_type
str r0, [r4]
bl detect_arch_type
str r0, [r5]
mov fp, #0
b start_kernel
LC0: .word _stext
.word __bss_start @ r2
.word _end @ r3
.word processor_id @ r4
.word __machine_arch_type @ r5
.word init_task_union+8192 @ sp
arm2_id: .long 0x41560200
arm250_id: .long 0x41560250
.align
oldparams: mov r4, #0x02000000
add r3, r4, #0x00080000
add r4, r4, #0x0007c000
1: ldmia r0!, {r5 - r12}
stmia r4!, {r5 - r12}
cmp r4, r3
blt 1b
mov pc, lr
/*
* We need some way to automatically detect the difference between
* these two machines. Unfortunately, it is not possible to detect
* the presence of the SuperIO chip, because that will hang the old
* Archimedes machines solid.
*/
/* DAG: Outdated, these have been combined !!!!!!! */
detect_arch_type:
#if defined(CONFIG_ARCH_ARC)
mov r0, #MACH_TYPE_ARCHIMEDES
#elif defined(CONFIG_ARCH_A5K)
mov r0, #MACH_TYPE_A5K
#endif
mov pc, lr
detect_proc_type:
mov ip, lr
mov r2, #0xea000000 @ Point undef instr to continuation
adr r0, continue - 12
orr r0, r2, r0, lsr #2
mov r1, #0
str r0, [r1, #4]
ldr r0, arm2_id
swp r2, r2, [r1] @ check for swp (ARM2 cant)
ldr r0, arm250_id
mrc 15, 0, r3, c0, c0 @ check for CP#15 (ARM250 cant)
mov r0, r3
continue: mov r2, #0xeb000000 @ Make undef vector loop
sub r2, r2, #2
str r2, [r1, #4]
mov pc, ip
arch/arm/mach-arc/irq.c deleted 100644 → 0
View file @ c4e3aa81
/*
* linux/arch/arm/mach-arc/irq.c
*
* Copyright (C) 1996 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Changelog:
* 24-09-1996 RMK Created
* 10-10-1996 RMK Brought up to date with arch-sa110eval
* 22-10-1996 RMK Changed interrupt numbers & uses new inb/outb macros
* 11-01-1998 RMK Added mask_and_ack_irq
* 22-08-1998 RMK Restructured IRQ routines
*/
#include <linux/config.h>
#include <linux/init.h>
#include <asm/mach/irq.h>
#include <asm/hardware/ioc.h>
#include <asm/io.h>
#include <asm/system.h>
extern void init_FIQ(void);
#ifdef CONFIG_ARCH_ARC
#define a_clf() clf()
#define a_stf() stf()
#else
#define a_clf() do { } while (0)
#define a_stf() do { } while (0)
#endif
static void arc_mask_irq_ack_a(unsigned int irq)
{
unsigned int val, mask;
mask = 1 << irq;
a_clf();
val = ioc_readb(IOC_IRQMASKA);
ioc_writeb(val & ~mask, IOC_IRQMASKA);
ioc_writeb(mask, IOC_IRQCLRA);
a_stf();
}
static void arc_mask_irq_a(unsigned int irq)
{
unsigned int val, mask;
mask = 1 << irq;
a_clf();
val = ioc_readb(IOC_IRQMASKA);
ioc_writeb(val & ~mask, IOC_IRQMASKA);
a_stf();
}
static void arc_unmask_irq_a(unsigned int irq)
{
unsigned int val, mask;
mask = 1 << irq;
a_clf();
val = ioc_readb(IOC_IRQMASKA);
ioc_writeb(val | mask, IOC_IRQMASKA);
a_stf();
}
static void arc_mask_irq_b(unsigned int irq)
{
unsigned int val, mask;
mask = 1 << (irq & 7);
val = ioc_readb(IOC_IRQMASKB);
ioc_writeb(val & ~mask, IOC_IRQMASKB);
}
static void arc_unmask_irq_b(unsigned int irq)
{
unsigned int val, mask;
mask = 1 << (irq & 7);
val = ioc_readb(IOC_IRQMASKB);
ioc_writeb(val | mask, IOC_IRQMASKB);
}
static void arc_mask_irq_fiq(unsigned int irq)
{
unsigned int val, mask;
mask = 1 << (irq & 7);
val = ioc_readb(IOC_FIQMASK);
ioc_writeb(val & ~mask, IOC_FIQMASK);
}
static void arc_unmask_irq_fiq(unsigned int irq)
{
unsigned int val, mask;
mask = 1 << (irq & 7);
val = ioc_readb(IOC_FIQMASK);
ioc_writeb(val | mask, IOC_FIQMASK);
}
void __init arc_init_irq(void)
{
int irq;
ioc_writeb(0, IOC_IRQMASKA);
ioc_writeb(0, IOC_IRQMASKB);
ioc_writeb(0, IOC_FIQMASK);
for (irq = 0; irq < NR_IRQS; irq++) {
switch (irq) {
case 0 ... 6:
irq_desc[irq].probe_ok = 1;
irq_desc[irq].valid = 1;
irq_desc[irq].mask_ack = arc_mask_irq_ack_a;
irq_desc[irq].mask = arc_mask_irq_a;
irq_desc[irq].unmask = arc_unmask_irq_a;
break;
case 7:
irq_desc[irq].noautoenable = 1;
irq_desc[irq].valid = 1;
irq_desc[irq].mask_ack = arc_mask_irq_ack_a;
irq_desc[irq].mask = arc_mask_irq_a;
irq_desc[irq].unmask = arc_unmask_irq_a;
break;
case 9 ... 15:
irq_desc[irq].probe_ok = 1;
case 8:
irq_desc[irq].valid = 1;
irq_desc[irq].mask_ack = arc_mask_irq_b;
irq_desc[irq].mask = arc_mask_irq_b;
irq_desc[irq].unmask = arc_unmask_irq_b;
break;
case 64 ... 72:
irq_desc[irq].valid = 1;
irq_desc[irq].mask_ack = arc_mask_irq_fiq;
irq_desc[irq].mask = arc_mask_irq_fiq;
irq_desc[irq].unmask = arc_unmask_irq_fiq;
break;
}
}
irq_desc[IRQ_KEYBOARDTX].noautoenable = 1;
init_FIQ();
}
arch/arm/mach-arc/mm.c deleted 100644 → 0
View file @ c4e3aa81
/*
* linux/arch/arm/mm/mm-armo.c
*
* Copyright (C) 1998-2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Page table sludge for older ARM processor architectures.
*/
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/page.h>
#include <asm/arch/memory.h>
#include <asm/mach/map.h>
#define MEMC_TABLE_SIZE (256*sizeof(unsigned long))
kmem_cache_t *pte_cache, *pgd_cache;
int page_nr;
/*
* Allocate a page table. Note that we place the MEMC
* table before the page directory. This means we can
* easily get to both tightly-associated data structures
* with a single pointer.
*/
static inline pgd_t *alloc_pgd_table(int priority)
{
void *pg2k = kmem_cache_alloc(pgd_cache, GFP_KERNEL);
if (pg2k)
pg2k += MEMC_TABLE_SIZE;
return (pgd_t *)pg2k;
}
void free_pgd_slow(pgd_t *pgd)
{
unsigned long tbl = (unsigned long)pgd;
/*
* CHECKME: are we leaking pte tables here???
*/
tbl -= MEMC_TABLE_SIZE;
kmem_cache_free(pgd_cache, (void *)tbl);
}
pgd_t *get_pgd_slow(struct mm_struct *mm)
{
pgd_t *new_pgd, *init_pgd;
pmd_t *new_pmd, *init_pmd;
pte_t *new_pte, *init_pte;
new_pgd = alloc_pgd_table(GFP_KERNEL);
if (!new_pgd)
goto no_pgd;
/*
* This lock is here just to satisfy pmd_alloc and pte_lock
*/
spin_lock(&mm->page_table_lock);
/*
* On ARM, first page must always be allocated since it contains
* the machine vectors.
*/
new_pmd = pmd_alloc(mm, new_pgd, 0);
if (!new_pmd)
goto no_pmd;
new_pte = pte_alloc_map(mm, new_pmd, 0);
if (!new_pte)
goto no_pte;
init_pgd = pgd_offset_k(0);
init_pmd = pmd_offset(init_pgd, 0);
init_pte = pte_offset_map_nested(init_pmd, 0);
set_pte(new_pte, *init_pte);
pte_unmap_nested(init_pte);
pte_unmap(new_pte);
/*
* most of the page table entries are zeroed
* wne the table is created.
*/
memcpy(new_pgd + USER_PTRS_PER_PGD, init_pgd + USER_PTRS_PER_PGD,
(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
spin_unlock(&mm->page_table_lock);
/* update MEMC tables */
cpu_memc_update_all(new_pgd);
return new_pgd;
no_pte:
spin_unlock(&mm->page_table_lock);
pmd_free(new_pmd);
free_pgd_slow(new_pgd);
return NULL;
no_pmd:
spin_unlock(&mm->page_table_lock);
free_pgd_slow(new_pgd);
return NULL;
no_pgd:
return NULL;
}
/*
* No special code is required here.
*/
void setup_mm_for_reboot(char mode)
{
}
/*
* This contains the code to setup the memory map on an ARM2/ARM250/ARM3
* machine. This is both processor & architecture specific, and requires
* some more work to get it to fit into our separate processor and
* architecture structure.
*/
void __init memtable_init(struct meminfo *mi)
{
pte_t *pte;
int i;
page_nr = max_low_pfn;
pte = alloc_bootmem_low_pages(PTRS_PER_PTE * sizeof(pte_t));
pte[0] = pfn_pte((PAGE_OFFSET + 491520) >> PAGE_SHIFT, PAGE_READONLY);
pmd_populate(&init_mm, pmd_offset(swapper_pg_dir, 0), pte);
for (i = 1; i < PTRS_PER_PGD; i++)
pgd_val(swapper_pg_dir[i]) = 0;
}
void __init iotable_init(struct map_desc *io_desc)
{
/* nothing to do */
}
/*
* We never have holes in the memmap
*/
void __init create_memmap_holes(struct meminfo *mi)
{
}
static void pte_cache_ctor(void *pte, kmem_cache_t *cache, unsigned long flags)
{
memzero(pte, sizeof(pte_t) * PTRS_PER_PTE);
}
static void pgd_cache_ctor(void *pte, kmem_cache_t *cache, unsigned long flags)
{
pgd_t *pgd = (pte + MEMC_TABLE_SIZE);
memzero(pgd, USER_PTRS_PER_PGD * sizeof(pgd_t));
}
void __init pgtable_cache_init(void)
{
pte_cache = kmem_cache_create("pte-cache",
sizeof(pte_t) * PTRS_PER_PTE,
0, 0, pte_cache_ctor, NULL);
if (!pte_cache)
BUG();
pgd_cache = kmem_cache_create("pgd-cache", MEMC_TABLE_SIZE +
sizeof(pgd_t) * PTRS_PER_PGD,
0, 0, pgd_cache_ctor, NULL);
if (!pgd_cache)
BUG();
}
arch/arm/mach-arc/oldlatches.c deleted 100644 → 0
View file @ c4e3aa81
/*
* linux/arch/arm/kernel/oldlatches.c
*
* Copyright (C) David Alan Gilbert 1995/1996,2000
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Support for the latches on the old Archimedes which control the floppy,
* hard disc and printer
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/io.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/arch/oldlatches.h>
static unsigned char latch_a_copy;
static unsigned char latch_b_copy;
/* newval=(oldval & ~mask)|newdata */
void oldlatch_aupdate(unsigned char mask,unsigned char newdata)
{
if (machine_is_archimedes()) {
unsigned long flags;
local_save_flags(flags);
latch_a_copy = (latch_a_copy & ~mask) | newdata;
__raw_writeb(latch_a_copy, LATCHA_BASE);
local_restore_flags(flags);
printk("Latch: A = 0x%02x\n", latch_a_copy);
} else
BUG();
}
/* newval=(oldval & ~mask)|newdata */
void oldlatch_bupdate(unsigned char mask,unsigned char newdata)
{
if (machine_is_archimedes()) {
unsigned long flags;
local_save_flags(flags);
latch_b_copy = (latch_b_copy & ~mask) | newdata;
__raw_writeb(latch_b_copy, LATCHB_BASE);
local_restore_flags(flags);
printk("Latch: B = 0x%02x\n", latch_b_copy);
} else
BUG();
}
static int __init oldlatch_init(void)
{
if (machine_is_archimedes()) {
oldlatch_aupdate(0xff, 0xff);
/* Thats no FDC reset...*/
oldlatch_bupdate(0xff, LATCHB_FDCRESET);
}
return 0;
}
__initcall(oldlatch_init);
EXPORT_SYMBOL(oldlatch_aupdate);
EXPORT_SYMBOL(oldlatch_bupdate);
arch/arm/mach-arc/small_page.c deleted 100644 → 0
View file @ c4e3aa81
/*
* linux/arch/arm/mm/small_page.c
*
* Copyright (C) 1996 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Changelog:
* 26/01/1996 RMK Cleaned up various areas to make little more generic
* 07/02/1999 RMK Support added for 16K and 32K page sizes
* containing 8K blocks
*/
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/mman.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/smp.h>
#include <asm/bitops.h>
#include <asm/pgtable.h>
#define PEDANTIC
/*
* Requirement:
* We need to be able to allocate naturally aligned memory of finer
* granularity than the page size. This is typically used for the
* second level page tables on 32-bit ARMs.
*
* Theory:
* We "misuse" the Linux memory management system. We use alloc_page
* to allocate a page and then mark it as reserved. The Linux memory
* management system will then ignore the "offset", "next_hash" and
* "pprev_hash" entries in the mem_map for this page.
*
* We then use a bitstring in the "offset" field to mark which segments
* of the page are in use, and manipulate this as required during the
* allocation and freeing of these small pages.
*
* We also maintain a queue of pages being used for this purpose using
* the "next_hash" and "pprev_hash" entries of mem_map;
*/
struct order {
struct list_head queue;
unsigned int mask; /* (1 << shift) - 1 */
unsigned int shift; /* (1 << shift) size of page */
unsigned int block_mask; /* nr_blocks - 1 */
unsigned int all_used; /* (1 << nr_blocks) - 1 */
};
static struct order orders[] = {
#if PAGE_SIZE == 4096
{ LIST_HEAD_INIT(orders[0].queue), 2047, 11, 1, 0x00000003 }
#elif PAGE_SIZE == 32768
{ LIST_HEAD_INIT(orders[0].queue), 2047, 11, 15, 0x0000ffff },
{ LIST_HEAD_INIT(orders[1].queue), 8191, 13, 3, 0x0000000f }
#else
#error unsupported page size
#endif
};
#define USED_MAP(pg) ((pg)->index)
#define TEST_AND_CLEAR_USED(pg,off) (test_and_clear_bit(off, &USED_MAP(pg)))
#define SET_USED(pg,off) (set_bit(off, &USED_MAP(pg)))
static spinlock_t small_page_lock = SPIN_LOCK_UNLOCKED;
static unsigned long __get_small_page(int priority, struct order *order)
{
unsigned long flags;
struct page *page;
int offset;
do {
spin_lock_irqsave(&small_page_lock, flags);
if (list_empty(&order->queue))
goto need_new_page;
page = list_entry(order->queue.next, struct page, list);
again:
#ifdef PEDANTIC
if (USED_MAP(page) & ~order->all_used)
PAGE_BUG(page);
#endif
offset = ffz(USED_MAP(page));
SET_USED(page, offset);
if (USED_MAP(page) == order->all_used)
list_del_init(&page->list);
spin_unlock_irqrestore(&small_page_lock, flags);
return (unsigned long) page_address(page) + (offset << order->shift);
need_new_page:
spin_unlock_irqrestore(&small_page_lock, flags);
page = alloc_page(priority);
spin_lock_irqsave(&small_page_lock, flags);
if (list_empty(&order->queue)) {
if (!page)
goto no_page;
SetPageReserved(page);
USED_MAP(page) = 0;
list_add(&page->list, &order->queue);
goto again;
}
spin_unlock_irqrestore(&small_page_lock, flags);
__free_page(page);
} while (1);
no_page:
spin_unlock_irqrestore(&small_page_lock, flags);
return 0;
}
static void __free_small_page(unsigned long spage, struct order *order)
{
unsigned long flags;
struct page *page;
if (virt_addr_valid(spage)) {
page = virt_to_page(spage);
/*
* The container-page must be marked Reserved
*/
if (!PageReserved(page) || spage & order->mask)
goto non_small;
#ifdef PEDANTIC
if (USED_MAP(page) & ~order->all_used)
PAGE_BUG(page);
#endif
spage = spage >> order->shift;
spage &= order->block_mask;
/*
* the following must be atomic wrt get_page
*/
spin_lock_irqsave(&small_page_lock, flags);
if (USED_MAP(page) == order->all_used)
list_add(&page->list, &order->queue);
if (!TEST_AND_CLEAR_USED(page, spage))
goto already_free;
if (USED_MAP(page) == 0)
goto free_page;
spin_unlock_irqrestore(&small_page_lock, flags);
}
return;
free_page:
/*
* unlink the page from the small page queue and free it
*/
list_del_init(&page->list);
spin_unlock_irqrestore(&small_page_lock, flags);
ClearPageReserved(page);
__free_page(page);
return;
non_small:
printk("Trying to free non-small page from %p\n", __builtin_return_address(0));
return;
already_free:
printk("Trying to free free small page from %p\n", __builtin_return_address(0));
}
unsigned long get_page_8k(int priority)
{
return __get_small_page(priority, orders+1);
}
void free_page_8k(unsigned long spage)
{
__free_small_page(spage, orders+1);
}
arch/arm/mach-clps711x/irq.c
View file @ 4a1d5133
......@@ -18,6 +18,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/list.h>
#include <asm/mach/irq.h>
#include <asm/hardware.h>
......
arch/arm/mach-pxa/dma.c
View file @ 4a1d5133
......@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/errno.h>
#include <asm/system.h>
......@@ -92,7 +93,7 @@ void pxa_free_dma (int dma_ch)
local_irq_restore(flags);
}
static void dma_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
static irqreturn_t dma_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
{
int i, dint = DINT;
......@@ -111,6 +112,7 @@ static void dma_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
}
}
}
return IRQ_HANDLED;
}
static int __init pxa_dma_init (void)
......
arch/arm/mach-pxa/generic.c
View file @ 4a1d5133
......@@ -103,7 +103,7 @@ EXPORT_SYMBOL(get_lclk_frequency_10khz);
void pxa_gpio_mode(int gpio_mode)
{
long flags;
unsigned long flags;
int gpio = gpio_mode & GPIO_MD_MASK_NR;
int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8;
int gafr;
......
arch/arm/mach-pxa/pm.c
View file @ 4a1d5133
......@@ -11,12 +11,6 @@
* modify it under the terms of the GNU General Public License.
*/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/pm.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/sysctl.h>
#include <linux/errno.h>
#include <asm/hardware.h>
......@@ -81,7 +75,7 @@ int pm_do_suspend(void)
/*
* Temporary solution. This won't be necessary once
* we move pxa support into the serial/* driver
* we move pxa support into the serial driver
* Save the FF UART
*/
SAVE(FFIER);
......@@ -175,7 +169,7 @@ int pm_do_suspend(void)
/*
* Temporary solution. This won't be necessary once
* we move pxa support into the serial/* driver.
* we move pxa support into the serial driver.
* Restore the FF UART.
*/
RESTORE(FFMCR);
......@@ -207,58 +201,3 @@ unsigned long sleep_phys_sp(void *sp)
{
return virt_to_phys(sp);
}
#ifdef CONFIG_SYSCTL
/*
* ARGH! ACPI people defined CTL_ACPI in linux/acpi.h rather than
* linux/sysctl.h.
*
* This means our interface here won't survive long - it needs a new
* interface. Quick hack to get this working - use sysctl id 9999.
*/
#warning ACPI broke the kernel, this interface needs to be fixed up.
#define CTL_ACPI 9999
#define ACPI_S1_SLP_TYP 19
/*
* Send us to sleep.
*/
static int sysctl_pm_do_suspend(void)
{
int retval;
retval = pm_send_all(PM_SUSPEND, (void *)3);
if (retval == 0) {
retval = pm_do_suspend();
pm_send_all(PM_RESUME, (void *)0);
}
return retval;
}
static struct ctl_table pm_table[] =
{
{ACPI_S1_SLP_TYP, "suspend", NULL, 0, 0600, NULL, (proc_handler *)&sysctl_pm_do_suspend},
{0}
};
static struct ctl_table pm_dir_table[] =
{
{CTL_ACPI, "pm", NULL, 0, 0555, pm_table},
{0}
};
/*
* Initialize power interface
*/
static int __init pm_init(void)
{
register_sysctl_table(pm_dir_table, 1);
return 0;
}
__initcall(pm_init);
#endif
arch/arm/mach-pxa/sleep.S
View file @ 4a1d5133
......@@ -48,7 +48,7 @@ ENTRY(pxa_cpu_suspend)
str r0, [r1]
@ clean data cache
bl cpu_xscale_cache_clean_invalidate_all
bl xscale_flush_kern_cache_all
@ Put the processor to sleep
@ (also workaround for sighting 28071)
......@@ -101,7 +101,7 @@ ENTRY(pxa_cpu_suspend)
.data
.align 5
ENTRY(pxa_cpu_resume)
mov r0, #I_BIT | F_BIT | MODE_SVC @ set SVC, irqs off
mov r0, #PSR_I_BIT | PSR_F_BIT | MODE_SVC @ set SVC, irqs off
msr cpsr_c, r0
ldr r0, sleep_save_sp @ stack phys addr
......
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