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Commit 5ec5104a authored by Linus Torvalds's avatar Linus Torvalds
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Merge bk://linuxusb.bkbits.net/linus-2.5 

into home.transmeta.com:/home/torvalds/v2.5/linux
parents ead584e3 e78df3d0
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Showing with 1234 additions and 938 deletions
arch/arm/kernel/apm.c
View file @ 5ec5104a
......@@ -552,8 +552,6 @@ MODULE_AUTHOR("Stephen Rothwell");
MODULE_DESCRIPTION("Advanced Power Management");
MODULE_LICENSE("GPL");
EXPORT_NO_SYMBOLS;
#ifndef MODULE
static int __init apm_setup(char *str)
{
......
arch/arm/kernel/armksyms.c
View file @ 5ec5104a
......@@ -69,6 +69,7 @@ extern void __udivmoddi4(void);
extern void __udivsi3(void);
extern void __umodsi3(void);
extern void abort(void);
extern void do_div64(void);
extern void ret_from_exception(void);
extern void fpundefinstr(void);
......@@ -234,6 +235,7 @@ EXPORT_SYMBOL_NOVERS(__umoddi3);
EXPORT_SYMBOL_NOVERS(__udivmoddi4);
EXPORT_SYMBOL_NOVERS(__udivsi3);
EXPORT_SYMBOL_NOVERS(__umodsi3);
EXPORT_SYMBOL_NOVERS(do_div64);
/* bitops */
EXPORT_SYMBOL(_set_bit_le);
......
arch/arm/kernel/entry-armv.S
View file @ 5ec5104a
......@@ -997,11 +997,11 @@ ENTRY(fp_enter)
* previous and next are guaranteed not to be the same.
*/
ENTRY(__switch_to)
add ip, r0, #TI_CPU_SAVE
ldr r2, [r1, #TI_CPU_DOMAIN]!
add ip, r1, #TI_CPU_SAVE
ldr r3, [r2, #TI_CPU_DOMAIN]!
stmia ip, {r4 - sl, fp, sp, lr} @ Store most regs on stack
mcr p15, 0, r2, c3, c0 @ Set domain register
ldmib r1, {r4 - sl, fp, sp, pc} @ Load all regs saved previously
mcr p15, 0, r3, c3, c0, 0 @ Set domain register
ldmib r2, {r4 - sl, fp, sp, pc} @ Load all regs saved previously
__INIT
/*
......
arch/arm/kernel/entry-common.S
View file @ 5ec5104a
......@@ -75,7 +75,6 @@ no_work_pending:
* This is how we return from a fork.
*/
ENTRY(ret_from_fork)
ldr r0, [r0, #TI_TASK]
bl schedule_tail
get_thread_info tsk
ldr r1, [tsk, #TI_FLAGS] @ check for syscall tracing
......
arch/arm/lib/Makefile
View file @ 5ec5104a
......@@ -13,7 +13,7 @@ obj-y := backtrace.o changebit.o csumipv6.o csumpartial.o \
strnlen_user.o strchr.o strrchr.o testchangebit.o \
testclearbit.o testsetbit.o uaccess.o getuser.o \
putuser.o ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \
ucmpdi2.o udivdi3.o lib1funcs.o
ucmpdi2.o udivdi3.o lib1funcs.o div64.o
obj-m :=
obj-n :=
......
arch/arm/lib/div64.S 0 → 100644
View file @ 5ec5104a
#include <linux/linkage.h>
ql .req r0 @ quotient low
qh .req r1 @ quotient high
dl .req r3 @ divisor low
dh .req r2 @ divisor high
nl .req r4 @ dividend low
nh .req r5 @ dividend high
ENTRY(do_div64)
stmfd sp!, {r4, r5, lr}
mov nl, r0
movs nh, r1 @ if high bits are zero
movne lr, #33
moveq lr, #1 @ only divide low bits
moveq nh, r0
1: cmp nh, dh
bls 2f
add lr, lr, #1
movs dh, dh, lsl #1 @ left justify divisor
bpl 1b
2: movs nh, r1
moveq dl, dh
moveq dh, #0
movne dl, #0
mov ql, #0
mov qh, #0
3: subs ip, nl, dl @ trial subtraction
sbcs ip, nh, dh
movcs nh, ip @ only update if successful
subcs nl, nl, dl @ (repeat the subtraction)
adcs ql, ql, ql @ C=1 if successful, shift into
adc qh, qh, qh @ quotient
movs dh, dh, lsr #1 @ shift base high part right
mov dl, dl, rrx @ shift base low part right
subs lr, lr, #1
bne 3b
mov r2, nl
ldmfd sp!, {r4, r5, pc}
arch/arm/mach-footbridge/dc21285.c
View file @ 5ec5104a
......@@ -25,6 +25,9 @@
#define MAX_SLOTS 21
#define PCICMD_ABORT ((PCI_STATUS_REC_MASTER_ABORT| \
PCI_STATUS_REC_TARGET_ABORT)<<16)
#define PCICMD_ERROR_BITS ((PCI_STATUS_DETECTED_PARITY | \
PCI_STATUS_REC_MASTER_ABORT | \
PCI_STATUS_REC_TARGET_ABORT | \
......@@ -84,6 +87,12 @@ dc21285_read_config(struct pci_bus *bus, unsigned int devfn, int where,
*value = v;
v = *CSR_PCICMD;
if (v & PCICMD_ABORT) {
*CSR_PCICMD = v & (0xffff|PCICMD_ABORT);
return -1;
}
return PCIBIOS_SUCCESSFUL;
}
......@@ -92,6 +101,7 @@ dc21285_write_config(struct pci_bus *bus, unsigned int devfn, int where,
int size, u32 value)
{
unsigned long addr = dc21285_base_address(bus, devfn);
u32 v;
if (addr)
switch (size) {
......@@ -109,6 +119,12 @@ dc21285_write_config(struct pci_bus *bus, unsigned int devfn, int where,
break;
}
v = *CSR_PCICMD;
if (v & PCICMD_ABORT) {
*CSR_PCICMD = v & (0xffff|PCICMD_ABORT);
return -1;
}
return PCIBIOS_SUCCESSFUL;
}
......@@ -148,16 +164,16 @@ static void dc21285_abort_irq(int irq, void *dev_id, struct pt_regs *regs)
cmd = cmd & 0xffff;
if (status & PCI_STATUS_REC_MASTER_ABORT) {
printk(KERN_DEBUG "PCI: master abort: ");
pcibios_report_status(PCI_STATUS_REC_MASTER_ABORT, 1);
printk("\n");
printk(KERN_DEBUG "PCI: master abort, pc=0x%08lx\n",
instruction_pointer(regs));
cmd |= PCI_STATUS_REC_MASTER_ABORT << 16;
}
if (status & PCI_STATUS_REC_TARGET_ABORT) {
printk(KERN_DEBUG "PCI: target abort: ");
pcibios_report_status(PCI_STATUS_SIG_TARGET_ABORT, 1);
pcibios_report_status(PCI_STATUS_REC_MASTER_ABORT |
PCI_STATUS_SIG_TARGET_ABORT |
PCI_STATUS_REC_TARGET_ABORT, 1);
printk("\n");
cmd |= PCI_STATUS_REC_TARGET_ABORT << 16;
......@@ -289,6 +305,38 @@ void __init dc21285_preinit(void)
"%s mode\n", *CSR_CLASSREV & 0xff, cfn_mode ?
"central function" : "addin");
if (footbridge_cfn_mode()) {
/*
* Clear any existing errors - we aren't
* interested in historical data...
*/
*CSR_SA110_CNTL = (*CSR_SA110_CNTL & 0xffffde07) |
SA110_CNTL_RXSERR;
*CSR_PCICMD = (*CSR_PCICMD & 0xffff) | PCICMD_ERROR_BITS;
}
init_timer(&serr_timer);
init_timer(&perr_timer);
serr_timer.data = IRQ_PCI_SERR;
serr_timer.function = dc21285_enable_error;
perr_timer.data = IRQ_PCI_PERR;
perr_timer.function = dc21285_enable_error;
/*
* We don't care if these fail.
*/
request_irq(IRQ_PCI_SERR, dc21285_serr_irq, SA_INTERRUPT,
"PCI system error", &serr_timer);
request_irq(IRQ_PCI_PERR, dc21285_parity_irq, SA_INTERRUPT,
"PCI parity error", &perr_timer);
request_irq(IRQ_PCI_ABORT, dc21285_abort_irq, SA_INTERRUPT,
"PCI abort", NULL);
request_irq(IRQ_DISCARD_TIMER, dc21285_discard_irq, SA_INTERRUPT,
"Discard timer", NULL);
request_irq(IRQ_PCI_DPERR, dc21285_dparity_irq, SA_INTERRUPT,
"PCI data parity", NULL);
if (cfn_mode) {
static struct resource csrio;
......@@ -324,35 +372,5 @@ void __init dc21285_preinit(void)
void __init dc21285_postinit(void)
{
if (footbridge_cfn_mode()) {
/*
* Clear any existing errors - we aren't
* interested in historical data...
*/
*CSR_SA110_CNTL = (*CSR_SA110_CNTL & 0xffffde07) |
SA110_CNTL_RXSERR;
*CSR_PCICMD = (*CSR_PCICMD & 0xffff) | PCICMD_ERROR_BITS;
}
/*
* Initialise PCI error IRQ after we've finished probing
*/
request_irq(IRQ_PCI_ABORT, dc21285_abort_irq, SA_INTERRUPT, "PCI abort", NULL);
request_irq(IRQ_DISCARD_TIMER, dc21285_discard_irq, SA_INTERRUPT, "Discard timer", NULL);
request_irq(IRQ_PCI_DPERR, dc21285_dparity_irq, SA_INTERRUPT, "PCI data parity", NULL);
init_timer(&serr_timer);
init_timer(&perr_timer);
serr_timer.data = IRQ_PCI_SERR;
serr_timer.function = dc21285_enable_error;
perr_timer.data = IRQ_PCI_PERR;
perr_timer.function = dc21285_enable_error;
request_irq(IRQ_PCI_SERR, dc21285_serr_irq, SA_INTERRUPT,
"PCI system error", &serr_timer);
request_irq(IRQ_PCI_PERR, dc21285_parity_irq, SA_INTERRUPT,
"PCI parity error", &perr_timer);
register_isa_ports(DC21285_PCI_MEM, DC21285_PCI_IO, 0);
}
arch/arm/mach-sa1100/assabet.c
View file @ 5ec5104a
......@@ -117,6 +117,8 @@ static int __init assabet_init(void)
PGSR = 0;
PCFR = 0;
PSDR = 0;
PPDR |= PPC_TXD3 | PPC_TXD1;
PPSR |= PPC_TXD3 | PPC_TXD1;
sa1100fb_lcd_power = assabet_lcd_power;
sa1100fb_backlight_power = assabet_backlight_power;
......
arch/arm/mach-sa1100/cpu-sa1110.c
View file @ 5ec5104a
......@@ -234,6 +234,8 @@ static int sa1110_target(struct cpufreq_policy *policy,
(sa11x0_ppcr_to_freq(ppcr-1) >= policy->min))
ppcr--;
break;
default:
return -EINVAL;
}
freqs.old = sa11x0_getspeed();
......
arch/arm/tools/mach-types
View file @ 5ec5104a
......@@ -6,7 +6,7 @@
# To add an entry into this database, please see Documentation/arm/README,
# or contact rmk@arm.linux.org.uk
#
# Last update: Wed Mar 5 22:11:59 2003
# Last update: Tue Mar 25 16:34:29 2003
#
# machine_is_xxx CONFIG_xxxx MACH_TYPE_xxx number
#
......@@ -305,3 +305,11 @@ meg03 ARCH_MEG03 MEG03 293
pxa_whitechapel ARCH_PXA_WHITECHAPEL PXA_WHITECHAPEL 294
nwsc ARCH_NWSC NWSC 295
nwlarm ARCH_NWLARM NWLARM 296
ixp425_mguard ARCH_IXP425_MGUARD IXP425_MGUARD 297
pxa_netdcu4 ARCH_PXA_NETDCU4 PXA_NETDCU4 298
ixdp2401 ARCH_IXDP2401 IXDP2401 299
ixdp2801 ARCH_IXDP2801 IXDP2801 300
zodiac ARCH_ZODIAC ZODIAC 301
armmodul ARCH_ARMMODUL ARMMODUL 302
ketop SA1100_KETOP KETOP 303
av7200 ARCH_AV7200 AV7200 304
arch/sparc/Makefile
View file @ 5ec5104a
......@@ -54,13 +54,16 @@ NET_Y := $(patsubst %/, %/built-in.o, $(net-y))
LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y))
export INIT_Y CORE_Y DRIVERS_Y NET_Y LIBS_Y HEAD_Y
makeboot =$(Q)$(MAKE) -f scripts/Makefile.build obj=arch/$(ARCH)/boot $(1)
# Default target
all: image
boot := arch/sparc/boot
image tftpboot.img: vmlinux
$(call makeboot,arch/sparc/boot/$@)
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
archclean:
$(Q)$(MAKE) -f scripts/Makefile.clean obj=arch/$(ARCH)/boot
$(Q)$(MAKE) $(clean)=$(boot)
prepare: include/asm-$(ARCH)/asm_offsets.h
......@@ -72,3 +75,9 @@ include/asm-$(ARCH)/asm_offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
CLEAN_FILES += include/asm-$(ARCH)/asm_offsets.h \
arch/$(ARCH)/kernel/asm-offsets.s
# Don't use tabs in echo arguments.
define archhelp
echo '* image - kernel image ($(boot)/image)'
echo ' tftpboot.img - image prepared for tftp'
endef
arch/sparc/boot/Makefile
View file @ 5ec5104a
......@@ -32,7 +32,3 @@ $(obj)/tftpboot.img: $(obj)/piggyback $(obj)/System.map $(obj)/image FORCE
$(obj)/btfix.s: $(obj)/btfixupprep vmlinux FORCE
$(call if_changed,btfix)
archhelp:
@echo '* image - kernel image ($(obj)/image)'
@echo ' tftpboot.img - image prepared for tftp'
arch/sparc64/Kconfig
View file @ 5ec5104a
......@@ -139,8 +139,8 @@ config CPU_FREQ
bool "CPU Frequency scaling"
help
Clock scaling allows you to change the clock speed of CPUs on the
fly. Currently there is only a sparc64 driver for UltraSPARC-III
processors.
fly. Currently there are only sparc64 drivers for UltraSPARC-III
and UltraSPARC-IIe processors.
For details, take a look at linux/Documentation/cpufreq.
......@@ -166,6 +166,16 @@ config US3_FREQ
If in doubt, say N.
config US2E_FREQ
tristate "UltraSPARC-IIe CPU Frequency driver"
depends on CPU_FREQ_TABLE
help
This adds the CPUFreq driver for UltraSPARC-IIe processors.
For details, take a look at linux/Documentation/cpufreq.
If in doubt, say N.
source "drivers/cpufreq/Kconfig"
# Identify this as a Sparc64 build
......
arch/sparc64/Makefile
View file @ 5ec5104a
......@@ -71,10 +71,13 @@ libs-y += arch/sparc64/prom/ arch/sparc64/lib/
# FIXME: is drivers- right?
drivers-$(CONFIG_OPROFILE) += arch/sparc64/oprofile/
makeboot = $(Q)$(MAKE) -f scripts/Makefile.build obj=arch/$(ARCH)/boot $(1)
boot := arch/sparc64/boot
image tftpboot.img vmlinux.aout: vmlinux
$(call makeboot,arch/sparc64/boot/$@)
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
define archhelp
echo '* vmlinux - Standard sparc64 kernel'
......
arch/sparc64/boot/Makefile
View file @ 5ec5104a
......@@ -8,7 +8,7 @@ ROOT_IMG := /usr/src/root.img
ELFTOAOUT := elftoaout
host-progs := piggyback
targets := tftpboot.img vmlinux.aout
targets := image tftpboot.img vmlinux.aout
quiet_cmd_elftoaout = ELT2AOUT $@
cmd_elftoaout = $(ELFTOAOUT) vmlinux -o $@
......
arch/sparc64/kernel/Makefile
View file @ 5ec5104a
......@@ -21,6 +21,7 @@ obj-$(CONFIG_BINFMT_ELF32) += binfmt_elf32.o
obj-$(CONFIG_BINFMT_AOUT32) += binfmt_aout32.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_US3_FREQ) += us3_cpufreq.o
obj-$(CONFIG_US2E_FREQ) += us2e_cpufreq.o
ifdef CONFIG_SUNOS_EMUL
obj-y += sys_sunos32.o sunos_ioctl32.o
......
arch/sparc64/kernel/binfmt_elf32.c
View file @ 5ec5104a
......@@ -152,7 +152,6 @@ jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
#ifdef CONFIG_BINFMT_ELF32_MODULE
#define CONFIG_BINFMT_ELF_MODULE CONFIG_BINFMT_ELF32_MODULE
#endif
#define ELF_FLAGS_INIT set_thread_flag(TIF_32BIT)
MODULE_DESCRIPTION("Binary format loader for compatibility with 32bit SparcLinux binaries on the Ultra");
MODULE_AUTHOR("Eric Youngdale, David S. Miller, Jakub Jelinek");
......
arch/sparc64/kernel/devices.c
View file @ 5ec5104a
......@@ -17,6 +17,7 @@
#include <asm/system.h>
#include <asm/smp.h>
#include <asm/spitfire.h>
#include <asm/timer.h>
/* Used to synchronize acceses to NatSemi SUPER I/O chip configure
* operations in asm/ns87303.h
......@@ -88,7 +89,6 @@ void __init device_scan(void)
#ifndef CONFIG_SMP
{
extern unsigned long up_clock_tick;
up_clock_tick = prom_getintdefault(prom_node_cpu,
"clock-frequency",
0);
......
arch/sparc64/kernel/setup.c
View file @ 5ec5104a
......@@ -44,6 +44,7 @@
#include <asm/starfire.h>
#include <asm/hardirq.h>
#include <asm/mmu_context.h>
#include <asm/timer.h>
#ifdef CONFIG_IP_PNP
#include <net/ipconfig.h>
......
arch/sparc64/kernel/sparc64_ksyms.c
View file @ 5ec5104a
......@@ -55,6 +55,7 @@
#endif
#include <asm/a.out.h>
#include <asm/ns87303.h>
#include <asm/timer.h>
struct poll {
int fd;
......@@ -159,11 +160,7 @@ EXPORT_SYMBOL(_do_write_unlock);
EXPORT_SYMBOL(smp_call_function);
#endif /* CONFIG_SMP */
/* Uniprocessor clock frequency */
#ifndef CONFIG_SMP
extern unsigned long up_clock_tick;
EXPORT_SYMBOL(up_clock_tick);
#endif
EXPORT_SYMBOL(sparc64_get_clock_tick);
/* semaphores */
EXPORT_SYMBOL(down);
......
arch/sparc64/kernel/time.c
View file @ 5ec5104a
......@@ -26,6 +26,8 @@
#include <linux/profile.h>
#include <linux/bcd.h>
#include <linux/jiffies.h>
#include <linux/cpufreq.h>
#include <linux/percpu.h>
#include <asm/oplib.h>
#include <asm/mostek.h>
......@@ -988,6 +990,73 @@ static unsigned long sparc64_init_timers(void (*cfunc)(int, void *, struct pt_re
return clock;
}
struct freq_table {
unsigned long udelay_val_ref;
unsigned long clock_tick_ref;
unsigned int ref_freq;
};
static DEFINE_PER_CPU(struct freq_table, sparc64_freq_table) = { 0, 0, 0 };
unsigned long sparc64_get_clock_tick(unsigned int cpu)
{
struct freq_table *ft = &per_cpu(sparc64_freq_table, cpu);
if (ft->clock_tick_ref)
return ft->clock_tick_ref;
#ifdef CONFIG_SMP
return cpu_data[cpu].clock_tick;
#else
return up_clock_tick;
#endif
}
#ifdef CONFIG_CPU_FREQ
static int sparc64_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
void *data)
{
struct cpufreq_freqs *freq = data;
unsigned int cpu = freq->cpu;
struct freq_table *ft = &per_cpu(sparc64_freq_table, cpu);
#ifdef CONFIG_SMP
if (!ft->ref_freq) {
ft->ref_freq = freq->old;
ft->udelay_val_ref = cpu_data[cpu].udelay_val;
ft->clock_tick_ref = cpu_data[cpu].clock_tick;
}
if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
(val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) {
cpu_data[cpu].udelay_val =
cpufreq_scale(ft->udelay_val_ref,
ft->ref_freq,
freq->new);
cpu_data[cpu].clock_tick =
cpufreq_scale(ft->clock_tick_ref,
ft->ref_freq,
freq->new);
}
#else
/* In the non-SMP case, kernel/cpufreq.c takes care of adjusting
* loops_per_jiffy.
*/
if (!ft->ref_freq) {
ft->ref_freq = freq->old;
ft->clock_tick_ref = up_clock_tick;
}
if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
(val == CPUFREQ_POSTCHANGE && freq->old > freq->new))
up_clock_tick = cpufreq_scale(ft->clock_tick_ref, ft->ref_freq, freq->new);
#endif
return 0;
}
static struct notifier_block sparc64_cpufreq_notifier_block = {
.notifier_call = sparc64_cpufreq_notifier
};
#endif
/* The quotient formula is taken from the IA64 port. */
void __init time_init(void)
{
......@@ -996,6 +1065,11 @@ void __init time_init(void)
timer_ticks_per_usec_quotient =
(((1000000UL << 30) +
(clock / 2)) / clock);
#ifdef CONFIG_CPU_FREQ
cpufreq_register_notifier(&sparc64_cpufreq_notifier_block,
CPUFREQ_TRANSITION_NOTIFIER);
#endif
}
static __inline__ unsigned long do_gettimeoffset(void)
......
arch/sparc64/kernel/us2e_cpufreq.c 0 → 100644
View file @ 5ec5104a
/* us2e_cpufreq.c: UltraSPARC-IIe cpu frequency support
*
* Copyright (C) 2003 David S. Miller (davem@redhat.com)
*
* Many thanks to Dominik Brodowski for fixing up the cpufreq
* infrastructure in order to make this driver easier to implement.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/cpufreq.h>
#include <linux/threads.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <asm/asi.h>
#include <asm/timer.h>
static struct cpufreq_driver *cpufreq_us2e_driver;
struct us2e_freq_percpu_info {
struct cpufreq_frequency_table table[6];
};
/* Indexed by cpu number. */
static struct us2e_freq_percpu_info *us2e_freq_table;
#define HBIRD_MEM_CNTL0_ADDR 0x1fe0000f010UL
#define HBIRD_ESTAR_MODE_ADDR 0x1fe0000f080UL
/* UltraSPARC-IIe has five dividers: 1, 2, 4, 6, and 8. These are controlled
* in the ESTAR mode control register.
*/
#define ESTAR_MODE_DIV_1 0x0000000000000000UL
#define ESTAR_MODE_DIV_2 0x0000000000000001UL
#define ESTAR_MODE_DIV_4 0x0000000000000003UL
#define ESTAR_MODE_DIV_6 0x0000000000000002UL
#define ESTAR_MODE_DIV_8 0x0000000000000004UL
#define ESTAR_MODE_DIV_MASK 0x0000000000000007UL
#define MCTRL0_SREFRESH_ENAB 0x0000000000010000UL
#define MCTRL0_REFR_COUNT_MASK 0x0000000000007f00UL
#define MCTRL0_REFR_COUNT_SHIFT 8
#define MCTRL0_REFR_INTERVAL 7800
#define MCTRL0_REFR_CLKS_P_CNT 64
static unsigned long read_hbreg(unsigned long addr)
{
unsigned long ret;
__asm__ __volatile__("ldxa [%1] %2, %0"
: "=&r" (ret)
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
return ret;
}
static void write_hbreg(unsigned long addr, unsigned long val)
{
__asm__ __volatile__("stxa %0, [%1] %2\n\t"
"membar #Sync"
: /* no outputs */
: "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
: "memory");
if (addr == HBIRD_ESTAR_MODE_ADDR) {
/* Need to wait 16 clock cycles for the PLL to lock. */
udelay(1);
}
}
static void self_refresh_ctl(int enable)
{
unsigned long mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR);
if (enable)
mctrl |= MCTRL0_SREFRESH_ENAB;
else
mctrl &= ~MCTRL0_SREFRESH_ENAB;
write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl);
(void) read_hbreg(HBIRD_MEM_CNTL0_ADDR);
}
static void frob_mem_refresh(int cpu_slowing_down,
unsigned long clock_tick,
unsigned long old_divisor, unsigned long divisor)
{
unsigned long old_refr_count, refr_count, mctrl;
refr_count = (clock_tick * MCTRL0_REFR_INTERVAL);
refr_count /= (MCTRL0_REFR_CLKS_P_CNT * divisor * 1000000000UL);
mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR);
old_refr_count = (mctrl & MCTRL0_REFR_COUNT_MASK)
>> MCTRL0_REFR_COUNT_SHIFT;
mctrl &= ~MCTRL0_REFR_COUNT_MASK;
mctrl |= refr_count << MCTRL0_REFR_COUNT_SHIFT;
write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl);
mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR);
if (cpu_slowing_down && !(mctrl & MCTRL0_SREFRESH_ENAB)) {
unsigned long usecs;
/* We have to wait for both refresh counts (old
* and new) to go to zero.
*/
usecs = (MCTRL0_REFR_CLKS_P_CNT *
(refr_count + old_refr_count) *
1000000UL *
old_divisor) / clock_tick;
udelay(usecs + 1UL);
}
}
static void us2e_transition(unsigned long estar, unsigned long new_bits,
unsigned long clock_tick,
unsigned long old_divisor, unsigned long divisor)
{
unsigned long flags;
local_irq_save(flags);
estar &= ~ESTAR_MODE_DIV_MASK;
/* This is based upon the state transition diagram in the IIe manual. */
if (old_divisor == 2 && divisor == 1) {
self_refresh_ctl(0);
write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
frob_mem_refresh(0, clock_tick, old_divisor, divisor);
} else if (old_divisor == 1 && divisor == 2) {
frob_mem_refresh(1, clock_tick, old_divisor, divisor);
write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
self_refresh_ctl(1);
} else if (old_divisor == 1 && divisor > 2) {
us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick,
1, 2);
us2e_transition(estar, new_bits, clock_tick,
2, divisor);
} else if (old_divisor > 2 && divisor == 1) {
us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick,
old_divisor, 2);
us2e_transition(estar, new_bits, clock_tick,
2, divisor);
} else if (old_divisor < divisor) {
frob_mem_refresh(0, clock_tick, old_divisor, divisor);
write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
} else if (old_divisor > divisor) {
write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
frob_mem_refresh(1, clock_tick, old_divisor, divisor);
} else {
BUG();
}
local_irq_restore(flags);
}
static unsigned long index_to_estar_mode(unsigned int index)
{
switch (index) {
case 0:
return ESTAR_MODE_DIV_1;
case 1:
return ESTAR_MODE_DIV_2;
case 2:
return ESTAR_MODE_DIV_4;
case 3:
return ESTAR_MODE_DIV_6;
case 4:
return ESTAR_MODE_DIV_8;
default:
BUG();
};
}
static unsigned long index_to_divisor(unsigned int index)
{
switch (index) {
case 0:
return 1;
case 1:
return 2;
case 2:
return 4;
case 3:
return 6;
case 4:
return 8;
default:
BUG();
};
}
static unsigned long estar_to_divisor(unsigned long estar)
{
unsigned long ret;
switch (estar & ESTAR_MODE_DIV_MASK) {
case ESTAR_MODE_DIV_1:
ret = 1;
break;
case ESTAR_MODE_DIV_2:
ret = 2;
break;
case ESTAR_MODE_DIV_4:
ret = 4;
break;
case ESTAR_MODE_DIV_6:
ret = 6;
break;
case ESTAR_MODE_DIV_8:
ret = 8;
break;
default:
BUG();
};
return ret;
}
static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index)
{
unsigned long new_bits, new_freq, cpus_allowed;
unsigned long clock_tick, divisor, old_divisor, estar;
struct cpufreq_freqs freqs;
if (!cpu_online(cpu))
return;
cpus_allowed = current->cpus_allowed;
set_cpus_allowed(current, (1UL << cpu));
new_freq = clock_tick = sparc64_get_clock_tick(cpu);
new_bits = index_to_estar_mode(index);
divisor = index_to_divisor(index);
new_freq /= divisor;
estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR);
old_divisor = estar_to_divisor(estar);
freqs.old = clock_tick / old_divisor;
freqs.new = new_freq;
freqs.cpu = cpu;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
us2e_transition(estar, new_bits, clock_tick, old_divisor, divisor);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
set_cpus_allowed(current, cpus_allowed);
}
static int us2e_freq_target(struct cpufreq_policy *policy,
unsigned int target_freq,
unsigned int relation)
{
unsigned int new_index = 0;
if (cpufreq_frequency_table_target(policy,
&us2e_freq_table[policy->cpu].table[0],
target_freq,
relation,
&new_index))
return -EINVAL;
us2e_set_cpu_divider_index(policy->cpu, new_index);
return 0;
}
static int us2e_freq_verify(struct cpufreq_policy *policy)
{
return cpufreq_frequency_table_verify(policy,
&us2e_freq_table[policy->cpu].table[0]);
}
static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
{
unsigned int cpu = policy->cpu;
unsigned long clock_tick = sparc64_get_clock_tick(cpu);
struct cpufreq_frequency_table *table =
&us2e_freq_table[cpu].table[0];
table[0].index = 0;
table[0].frequency = clock_tick / 1;
table[1].index = 1;
table[1].frequency = clock_tick / 2;
table[2].index = 2;
table[2].frequency = clock_tick / 4;
table[2].index = 3;
table[2].frequency = clock_tick / 6;
table[2].index = 4;
table[2].frequency = clock_tick / 8;
table[2].index = 5;
table[3].frequency = CPUFREQ_TABLE_END;
policy->policy = CPUFREQ_POLICY_PERFORMANCE;
policy->cpuinfo.transition_latency = 0;
policy->cur = clock_tick;
return cpufreq_frequency_table_cpuinfo(policy, table);
}
static int __exit us2e_freq_cpu_exit(struct cpufreq_policy *policy)
{
if (cpufreq_us2e_driver)
us2e_set_cpu_divider_index(policy->cpu, 0);
return 0;
}
static int __init us2e_freq_init(void)
{
unsigned long manuf, impl, ver;
int ret;
__asm__("rdpr %%ver, %0" : "=r" (ver));
manuf = ((ver >> 48) & 0xffff);
impl = ((ver >> 32) & 0xffff);
if (manuf == 0x17 && impl == 0x13) {
struct cpufreq_driver *driver;
ret = -ENOMEM;
driver = kmalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
if (!driver)
goto err_out;
memset(driver, 0, sizeof(*driver));
us2e_freq_table = kmalloc(
(NR_CPUS * sizeof(struct us2e_freq_percpu_info)),
GFP_KERNEL);
if (!us2e_freq_table)
goto err_out;
memset(us2e_freq_table, 0,
(NR_CPUS * sizeof(struct us2e_freq_percpu_info)));
driver->verify = us2e_freq_verify;
driver->target = us2e_freq_target;
driver->init = us2e_freq_cpu_init;
driver->exit = us2e_freq_cpu_exit;
driver->owner = THIS_MODULE,
strcpy(driver->name, "UltraSPARC-IIe");
cpufreq_us2e_driver = driver;
ret = cpufreq_register_driver(driver);
if (ret)
goto err_out;
return 0;
err_out:
if (driver) {
kfree(driver);
cpufreq_us2e_driver = NULL;
}
if (us2e_freq_table) {
kfree(us2e_freq_table);
us2e_freq_table = NULL;
}
return ret;
}
return -ENODEV;
}
static void __exit us2e_freq_exit(void)
{
if (cpufreq_us2e_driver) {
cpufreq_unregister_driver(cpufreq_us2e_driver);
kfree(cpufreq_us2e_driver);
cpufreq_us2e_driver = NULL;
kfree(us2e_freq_table);
us2e_freq_table = NULL;
}
}
MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-IIe");
MODULE_LICENSE("GPL");
module_init(us2e_freq_init);
module_exit(us2e_freq_exit);
arch/sparc64/kernel/us3_cpufreq.c
View file @ 5ec5104a
......@@ -16,14 +16,12 @@
#include <linux/init.h>
#include <asm/head.h>
#include <asm/timer.h>
static struct cpufreq_driver *cpufreq_us3_driver;
struct us3_freq_percpu_info {
struct cpufreq_frequency_table table[4];
unsigned long udelay_val_ref;
unsigned long clock_tick_ref;
unsigned int ref_freq;
};
/* Indexed by cpu number. */
......@@ -56,71 +54,9 @@ static void write_safari_cfg(unsigned long val)
: "memory");
}
#ifndef CONFIG_SMP
extern unsigned long up_clock_tick;
unsigned long clock_tick_ref;
unsigned int ref_freq;
#endif
static __inline__ unsigned long get_clock_tick(unsigned int cpu)
{
#ifdef CONFIG_SMP
if (us3_freq_table[cpu].clock_tick_ref)
return us3_freq_table[cpu].clock_tick_ref;
return cpu_data[cpu].clock_tick;
#else
if (clock_tick_ref)
return clock_tick_ref;
return up_clock_tick;
#endif
}
static int us3_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
void *data)
{
struct cpufreq_freqs *freq = data;
#ifdef CONFIG_SMP
unsigned int cpu = freq->cpu;
if (!us3_freq_table[cpu].ref_freq) {
us3_freq_table[cpu].ref_freq = freq->old;
us3_freq_table[cpu].udelay_val_ref = cpu_data[cpu].udelay_val;
us3_freq_table[cpu].clock_tick_ref = cpu_data[cpu].clock_tick;
}
if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
(val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) {
cpu_data[cpu].udelay_val =
cpufreq_scale(us3_freq_table[cpu].udelay_val_ref,
us3_freq_table[cpu].ref_freq,
freq->new);
cpu_data[cpu].clock_tick =
cpufreq_scale(us3_freq_table[cpu].clock_tick_ref,
us3_freq_table[cpu].ref_freq,
freq->new);
}
#else
/* In the non-SMP case, kernel/cpufreq.c takes care of adjusting
* loops_per_jiffy.
*/
if (!ref_freq) {
ref_freq = freq->old;
clock_tick_ref = up_clock_tick;
}
if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
(val == CPUFREQ_POSTCHANGE && freq->old > freq->new))
up_clock_tick = cpufreq_scale(clock_tick_ref, ref_freq, freq->new);
#endif
return 0;
}
static struct notifier_block us3_cpufreq_notifier_block = {
.notifier_call = us3_cpufreq_notifier
};
static unsigned long get_current_freq(unsigned int cpu, unsigned long safari_cfg)
{
unsigned long clock_tick = get_clock_tick(cpu);
unsigned long clock_tick = sparc64_get_clock_tick(cpu);
unsigned long ret;
switch (safari_cfg & SAFARI_CFG_DIV_MASK) {
......@@ -151,7 +87,7 @@ static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index)
cpus_allowed = current->cpus_allowed;
set_cpus_allowed(current, (1UL << cpu));
new_freq = get_clock_tick(cpu);
new_freq = sparc64_get_clock_tick(cpu);
switch (index) {
case 0:
new_bits = SAFARI_CFG_DIV_1;
......@@ -186,7 +122,7 @@ static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index)
set_cpus_allowed(current, cpus_allowed);
}
static int us3freq_target(struct cpufreq_policy *policy,
static int us3_freq_target(struct cpufreq_policy *policy,
unsigned int target_freq,
unsigned int relation)
{
......@@ -204,16 +140,16 @@ static int us3freq_target(struct cpufreq_policy *policy,
return 0;
}
static int us3freq_verify(struct cpufreq_policy *policy)
static int us3_freq_verify(struct cpufreq_policy *policy)
{
return cpufreq_frequency_table_verify(policy,
&us3_freq_table[policy->cpu].table[0]);
}
static int __init us3freq_cpu_init(struct cpufreq_policy *policy)
static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
{
unsigned int cpu = policy->cpu;
unsigned long clock_tick = get_clock_tick(cpu);
unsigned long clock_tick = sparc64_get_clock_tick(cpu);
struct cpufreq_frequency_table *table =
&us3_freq_table[cpu].table[0];
......@@ -233,7 +169,7 @@ static int __init us3freq_cpu_init(struct cpufreq_policy *policy)
return cpufreq_frequency_table_cpuinfo(policy, table);
}
static int __exit us3freq_cpu_exit(struct cpufreq_policy *policy)
static int __exit us3_freq_cpu_exit(struct cpufreq_policy *policy)
{
if (cpufreq_us3_driver)
us3_set_cpu_divider_index(policy->cpu, 0);
......@@ -241,7 +177,7 @@ static int __exit us3freq_cpu_exit(struct cpufreq_policy *policy)
return 0;
}
static int __init us3freq_init(void)
static int __init us3_freq_init(void)
{
unsigned long manuf, impl, ver;
int ret;
......@@ -254,9 +190,6 @@ static int __init us3freq_init(void)
(impl == CHEETAH_IMPL || impl == CHEETAH_PLUS_IMPL)) {
struct cpufreq_driver *driver;
cpufreq_register_notifier(&us3_cpufreq_notifier_block,
CPUFREQ_TRANSITION_NOTIFIER);
ret = -ENOMEM;
driver = kmalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
if (!driver)
......@@ -272,10 +205,10 @@ static int __init us3freq_init(void)
memset(us3_freq_table, 0,
(NR_CPUS * sizeof(struct us3_freq_percpu_info)));
driver->verify = us3freq_verify;
driver->target = us3freq_target;
driver->init = us3freq_cpu_init;
driver->exit = us3freq_cpu_exit;
driver->verify = us3_freq_verify;
driver->target = us3_freq_target;
driver->init = us3_freq_cpu_init;
driver->exit = us3_freq_cpu_exit;
driver->owner = THIS_MODULE,
strcpy(driver->name, "UltraSPARC-III");
......@@ -295,20 +228,16 @@ static int __init us3freq_init(void)
kfree(us3_freq_table);
us3_freq_table = NULL;
}
cpufreq_unregister_notifier(&us3_cpufreq_notifier_block,
CPUFREQ_TRANSITION_NOTIFIER);
return ret;
}
return -ENODEV;
}
static void __exit us3freq_exit(void)
static void __exit us3_freq_exit(void)
{
if (cpufreq_us3_driver) {
cpufreq_unregister_driver(cpufreq_us3_driver);
cpufreq_unregister_notifier(&us3_cpufreq_notifier_block,
CPUFREQ_TRANSITION_NOTIFIER);
kfree(cpufreq_us3_driver);
cpufreq_us3_driver = NULL;
......@@ -321,5 +250,5 @@ MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-III");
MODULE_LICENSE("GPL");
module_init(us3freq_init);
module_exit(us3freq_exit);
module_init(us3_freq_init);
module_exit(us3_freq_exit);
arch/sparc64/lib/Makefile
View file @ 5ec5104a
......@@ -11,4 +11,4 @@ obj-y := PeeCeeI.o blockops.o debuglocks.o strlen.o strncmp.o \
VIScopy.o VISbzero.o VISmemset.o VIScsum.o VIScsumcopy.o \
VIScsumcopyusr.o VISsave.o atomic.o rwlock.o bitops.o \
dec_and_lock.o U3memcpy.o U3copy_from_user.o U3copy_to_user.o \
U3copy_in_user.o mcount.o ipcsum.o
U3copy_in_user.o mcount.o ipcsum.o rwsem.o
arch/sparc64/lib/rwsem.c 0 → 100644
View file @ 5ec5104a
/* rwsem.c: Don't inline expand these suckers all over the place.
*
* Written by David S. Miller (davem@redhat.com), 2001.
* Derived from asm-i386/rwsem.h
*/
#include <linux/kernel.h>
#include <linux/rwsem.h>
#include <linux/module.h>
extern struct rw_semaphore *FASTCALL(rwsem_down_read_failed(struct rw_semaphore *sem));
extern struct rw_semaphore *FASTCALL(rwsem_down_write_failed(struct rw_semaphore *sem));
extern struct rw_semaphore *FASTCALL(rwsem_wake(struct rw_semaphore *));
extern struct rw_semaphore *FASTCALL(rwsem_downgrade_wake(struct rw_semaphore *));
void __down_read(struct rw_semaphore *sem)
{
__asm__ __volatile__(
"! beginning __down_read\n"
"1:\tlduw [%0], %%g5\n\t"
"add %%g5, 1, %%g7\n\t"
"cas [%0], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" add %%g7, 1, %%g7\n\t"
"cmp %%g7, 0\n\t"
"bl,pn %%icc, 3f\n\t"
" membar #StoreLoad | #StoreStore\n"
"2:\n\t"
".subsection 2\n"
"3:\tmov %0, %%g5\n\t"
"save %%sp, -160, %%sp\n\t"
"mov %%g1, %%l1\n\t"
"mov %%g2, %%l2\n\t"
"mov %%g3, %%l3\n\t"
"call %1\n\t"
" mov %%g5, %%o0\n\t"
"mov %%l1, %%g1\n\t"
"mov %%l2, %%g2\n\t"
"ba,pt %%xcc, 2b\n\t"
" restore %%l3, %%g0, %%g3\n\t"
".previous\n\t"
"! ending __down_read"
: : "r" (sem), "i" (rwsem_down_read_failed)
: "g5", "g7", "memory", "cc");
}
EXPORT_SYMBOL(__down_read);
int __down_read_trylock(struct rw_semaphore *sem)
{
int result;
__asm__ __volatile__(
"! beginning __down_read_trylock\n"
"1:\tlduw [%1], %%g5\n\t"
"add %%g5, 1, %%g7\n\t"
"cmp %%g7, 0\n\t"
"bl,pn %%icc, 2f\n\t"
" mov 0, %0\n\t"
"cas [%1], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" mov 1, %0\n\t"
"membar #StoreLoad | #StoreStore\n"
"2:\n\t"
"! ending __down_read_trylock"
: "=&r" (result)
: "r" (sem)
: "g5", "g7", "memory", "cc");
return result;
}
EXPORT_SYMBOL(__down_read_trylock);
void __down_write(struct rw_semaphore *sem)
{
__asm__ __volatile__(
"! beginning __down_write\n\t"
"sethi %%hi(%2), %%g1\n\t"
"or %%g1, %%lo(%2), %%g1\n"
"1:\tlduw [%0], %%g5\n\t"
"add %%g5, %%g1, %%g7\n\t"
"cas [%0], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" cmp %%g7, 0\n\t"
"bne,pn %%icc, 3f\n\t"
" membar #StoreLoad | #StoreStore\n"
"2:\n\t"
".subsection 2\n"
"3:\tmov %0, %%g5\n\t"
"save %%sp, -160, %%sp\n\t"
"mov %%g2, %%l2\n\t"
"mov %%g3, %%l3\n\t"
"call %1\n\t"
" mov %%g5, %%o0\n\t"
"mov %%l2, %%g2\n\t"
"ba,pt %%xcc, 2b\n\t"
" restore %%l3, %%g0, %%g3\n\t"
".previous\n\t"
"! ending __down_write"
: : "r" (sem), "i" (rwsem_down_write_failed),
"i" (RWSEM_ACTIVE_WRITE_BIAS)
: "g1", "g5", "g7", "memory", "cc");
}
EXPORT_SYMBOL(__down_write);
int __down_write_trylock(struct rw_semaphore *sem)
{
int result;
__asm__ __volatile__(
"! beginning __down_write_trylock\n\t"
"sethi %%hi(%2), %%g1\n\t"
"or %%g1, %%lo(%2), %%g1\n"
"1:\tlduw [%1], %%g5\n\t"
"cmp %%g5, 0\n\t"
"bne,pn %%icc, 2f\n\t"
" mov 0, %0\n\t"
"add %%g5, %%g1, %%g7\n\t"
"cas [%1], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" mov 1, %0\n\t"
"membar #StoreLoad | #StoreStore\n"
"2:\n\t"
"! ending __down_write_trylock"
: "=&r" (result)
: "r" (sem), "i" (RWSEM_ACTIVE_WRITE_BIAS)
: "g1", "g5", "g7", "memory", "cc");
return result;
}
EXPORT_SYMBOL(__down_write_trylock);
void __up_read(struct rw_semaphore *sem)
{
__asm__ __volatile__(
"! beginning __up_read\n\t"
"1:\tlduw [%0], %%g5\n\t"
"sub %%g5, 1, %%g7\n\t"
"cas [%0], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" cmp %%g7, 0\n\t"
"bl,pn %%icc, 3f\n\t"
" membar #StoreLoad | #StoreStore\n"
"2:\n\t"
".subsection 2\n"
"3:\tsethi %%hi(%2), %%g1\n\t"
"sub %%g7, 1, %%g7\n\t"
"or %%g1, %%lo(%2), %%g1\n\t"
"andcc %%g7, %%g1, %%g0\n\t"
"bne,pn %%icc, 2b\n\t"
" mov %0, %%g5\n\t"
"save %%sp, -160, %%sp\n\t"
"mov %%g2, %%l2\n\t"
"mov %%g3, %%l3\n\t"
"call %1\n\t"
" mov %%g5, %%o0\n\t"
"mov %%l2, %%g2\n\t"
"ba,pt %%xcc, 2b\n\t"
" restore %%l3, %%g0, %%g3\n\t"
".previous\n\t"
"! ending __up_read"
: : "r" (sem), "i" (rwsem_wake),
"i" (RWSEM_ACTIVE_MASK)
: "g1", "g5", "g7", "memory", "cc");
}
EXPORT_SYMBOL(__up_read);
void __up_write(struct rw_semaphore *sem)
{
__asm__ __volatile__(
"! beginning __up_write\n\t"
"sethi %%hi(%2), %%g1\n\t"
"or %%g1, %%lo(%2), %%g1\n"
"1:\tlduw [%0], %%g5\n\t"
"sub %%g5, %%g1, %%g7\n\t"
"cas [%0], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" sub %%g7, %%g1, %%g7\n\t"
"cmp %%g7, 0\n\t"
"bl,pn %%icc, 3f\n\t"
" membar #StoreLoad | #StoreStore\n"
"2:\n\t"
".subsection 2\n"
"3:\tmov %0, %%g5\n\t"
"save %%sp, -160, %%sp\n\t"
"mov %%g2, %%l2\n\t"
"mov %%g3, %%l3\n\t"
"call %1\n\t"
" mov %%g5, %%o0\n\t"
"mov %%l2, %%g2\n\t"
"ba,pt %%xcc, 2b\n\t"
" restore %%l3, %%g0, %%g3\n\t"
".previous\n\t"
"! ending __up_write"
: : "r" (sem), "i" (rwsem_wake),
"i" (RWSEM_ACTIVE_WRITE_BIAS)
: "g1", "g5", "g7", "memory", "cc");
}
EXPORT_SYMBOL(__up_write);
void __downgrade_write(struct rw_semaphore *sem)
{
__asm__ __volatile__(
"! beginning __downgrade_write\n\t"
"sethi %%hi(%2), %%g1\n\t"
"or %%g1, %%lo(%2), %%g1\n"
"1:\tlduw [%0], %%g5\n\t"
"sub %%g5, %%g1, %%g7\n\t"
"cas [%0], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" sub %%g7, %%g1, %%g7\n\t"
"cmp %%g7, 0\n\t"
"bl,pn %%icc, 3f\n\t"
" membar #StoreLoad | #StoreStore\n"
"2:\n\t"
".subsection 2\n"
"3:\tmov %0, %%g5\n\t"
"save %%sp, -160, %%sp\n\t"
"mov %%g2, %%l2\n\t"
"mov %%g3, %%l3\n\t"
"call %1\n\t"
" mov %%g5, %%o0\n\t"
"mov %%l2, %%g2\n\t"
"ba,pt %%xcc, 2b\n\t"
" restore %%l3, %%g0, %%g3\n\t"
".previous\n\t"
"! ending __up_write"
: : "r" (sem), "i" (rwsem_downgrade_wake),
"i" (RWSEM_WAITING_BIAS)
: "g1", "g5", "g7", "memory", "cc");
}
EXPORT_SYMBOL(__downgrade_write);
drivers/atm/iphase.c
View file @ 5ec5104a
......@@ -2893,7 +2893,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
struct tx_buf_desc *buf_desc_ptr;
int desc;
int comp_code;
int total_len, pad, last;
int total_len;
struct cpcs_trailer *trailer;
struct ia_vcc *iavcc;
......@@ -2975,9 +2975,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
/* Figure out the exact length of the packet and padding required to
make it aligned on a 48 byte boundary. */
total_len = skb->len + sizeof(struct cpcs_trailer);
last = total_len - (total_len/48)*48;
pad = 48 - last;
total_len = pad + total_len;
total_len = ((total_len + 47) / 48) * 48;
IF_TX(printk("ia packet len:%d padding:%d\n", total_len, pad);)
/* Put the packet in a tx buffer */
......
drivers/mtd/maps/epxa10db-flash.c
View file @ 5ec5104a
......@@ -199,12 +199,12 @@ static int __init epxa_default_partitions(struct mtd_info *master, struct mtd_pa
printk("Using default partitions for %s\n",BOARD_NAME);
npartitions=1;
parts = kmalloc(npartitions*sizeof(*parts)+strlen(name), GFP_KERNEL);
memzero(parts,npartitions*sizeof(*parts)+strlen(name));
parts = kmalloc(npartitions*sizeof(*parts)+strlen(name)+1, GFP_KERNEL);
if (!parts) {
ret = -ENOMEM;
goto out;
}
memzero(parts,npartitions*sizeof(*parts)+strlen(name));
i=0;
names = (char *)&parts[npartitions];
parts[i].name = names;
......@@ -218,10 +218,11 @@ static int __init epxa_default_partitions(struct mtd_info *master, struct mtd_pa
parts[i].size = FLASH_SIZE-0x00180000;
parts[i].offset = 0x00180000;
#endif
ret = npartitions;
out:
*pparts = parts;
return npartitions;
return ret;
}
......
drivers/serial/21285.c
View file @ 5ec5104a
......@@ -501,10 +501,11 @@ static struct console serial21285_console =
.index = -1,
};
static void __init rs285_console_init(void)
static int __init rs285_console_init(void)
{
serial21285_setup_ports();
register_console(&serial21285_console);
return 0;
}
console_initcall(rs285_console_init);
......
drivers/video/Makefile
View file @ 5ec5104a
......@@ -31,7 +31,7 @@ obj-$(CONFIG_FB_CT65550) += chipsfb.o cfbfillrect.o cfbcopyarea.o cfbim
obj-$(CONFIG_FB_ANAKIN) += anakinfb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
obj-$(CONFIG_FB_CLPS711X) += clps711xfb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
obj-$(CONFIG_FB_CYBER) += cyberfb.o
obj-$(CONFIG_FB_CYBER2000) += cyber2000fb.o
obj-$(CONFIG_FB_CYBER2000) += cyber2000fb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
obj-$(CONFIG_FB_SGIVW) += sgivwfb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
obj-$(CONFIG_FB_3DFX) += tdfxfb.o cfbimgblt.o
obj-$(CONFIG_FB_MAC) += macfb.o macmodes.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
......
drivers/video/cyber2000fb.c
View file @ 5ec5104a
......@@ -55,12 +55,6 @@
#include <asm/system.h>
#include <asm/uaccess.h>
#include <video/fbcon.h>
#include <video/fbcon-cfb8.h>
#include <video/fbcon-cfb16.h>
#include <video/fbcon-cfb24.h>
#include <video/fbcon-cfb32.h>
#include "cyber2000fb.h"
struct cfb_info {
......@@ -147,167 +141,114 @@ cyber2000_seqw(unsigned int reg, unsigned int val, struct cfb_info *cfb)
/*
* Hardware Cyber2000 Acceleration
*/
static void cyber2000_accel_wait(struct cfb_info *cfb)
{
int count = 100000;
while (cyber2000fb_readb(CO_REG_CONTROL, cfb) & CO_CTRL_BUSY) {
if (!count--) {
debug_printf("accel_wait timed out\n");
cyber2000fb_writeb(0, CO_REG_CONTROL, cfb);
return;
}
udelay(1);
}
}
static void cyber2000_accel_setup(struct display *display)
{
struct cfb_info *cfb = (struct cfb_info *)display->fb_info;
cfb->dispsw->setup(display);
}
static void
cyber2000_accel_bmove(struct display *display, int sy, int sx, int dy, int dx,
int height, int width)
cyber2000fb_fillrect(struct fb_info *info, struct fb_fillrect *rect)
{
struct cfb_info *cfb = (struct cfb_info *)display->fb_info;
struct fb_var_screeninfo *var = &display->var;
u_long src, dst;
u_int fh, fw, cmd = CO_CMD_L_PATTERN_FGCOL;
fw = fontwidth(display);
sx *= fw;
dx *= fw;
width *= fw;
width -= 1;
if (sx < dx) {
sx += width;
dx += width;
cmd |= CO_CMD_L_INC_LEFT;
}
fh = fontheight(display);
sy *= fh;
dy *= fh;
height *= fh;
height -= 1;
struct cfb_info *cfb = (struct cfb_info *)info;
unsigned long dst, col;
if (sy < dy) {
sy += height;
dy += height;
cmd |= CO_CMD_L_INC_UP;
if (!(cfb->fb.var.accel_flags & FB_ACCELF_TEXT)) {
cfb_fillrect(info, rect);
return;
}
src = sx + sy * var->xres_virtual;
dst = dx + dy * var->xres_virtual;
cyber2000fb_writeb(0, CO_REG_CONTROL, cfb);
cyber2000fb_writew(rect->width - 1, CO_REG_PIXWIDTH, cfb);
cyber2000fb_writew(rect->height - 1, CO_REG_PIXHEIGHT, cfb);
cyber2000_accel_wait(cfb);
cyber2000fb_writeb(0x00, CO_REG_CONTROL, cfb);
cyber2000fb_writew(width, CO_REG_PIXWIDTH, cfb);
cyber2000fb_writew(height, CO_REG_PIXHEIGHT, cfb);
col = rect->color;
if (cfb->fb.var.bits_per_pixel > 8)
col = ((u32 *)cfb->fb.pseudo_palette)[col];
cyber2000fb_writel(col, CO_REG_FGCOLOUR, cfb);
if (var->bits_per_pixel == 24) {
dst = rect->dx + rect->dy * cfb->fb.var.xres_virtual;
if (cfb->fb.var.bits_per_pixel == 24) {
cyber2000fb_writeb(dst, CO_REG_X_PHASE, cfb);
dst *= 3;
src *= 3;
}
cyber2000fb_writel(src, CO_REG_SRC1_PTR, cfb);
cyber2000fb_writel(dst, CO_REG_DEST_PTR, cfb);
cyber2000fb_writeb(CO_FG_MIX_SRC, CO_REG_FGMIX, cfb);
cyber2000fb_writew(cmd, CO_REG_CMD_L, cfb);
cyber2000fb_writew(CO_CMD_H_FGSRCMAP|CO_CMD_H_BLITTER, CO_REG_CMD_H, cfb);
cyber2000fb_writew(CO_CMD_L_PATTERN_FGCOL, CO_REG_CMD_L, cfb);
cyber2000fb_writew(CO_CMD_H_BLITTER, CO_REG_CMD_H, cfb);
}
static void
cyber2000_accel_clear(struct vc_data *conp, struct display *display, int sy,
int sx, int height, int width)
cyber2000fb_copyarea(struct fb_info *info, struct fb_copyarea *region)
{
struct cfb_info *cfb = (struct cfb_info *)display->fb_info;
struct fb_var_screeninfo *var = &display->var;
u_long dst;
u_int fw, fh;
u32 bgx = attr_bgcol_ec(display, conp);
struct cfb_info *cfb = (struct cfb_info *)info;
unsigned int cmd = CO_CMD_L_PATTERN_FGCOL;
unsigned long src, dst;
fw = fontwidth(display);
fh = fontheight(display);
if (!(cfb->fb.var.accel_flags & FB_ACCELF_TEXT)) {
cfb_copyarea(info, region);
return;
}
if (region->sx < region->dx) {
region->sx += region->width - 1;
region->dx += region->width - 1;
cmd |= CO_CMD_L_INC_LEFT;
}
dst = sx * fw + sy * var->xres_virtual * fh;
width = width * fw - 1;
height = height * fh - 1;
if (region->sy < region->dy) {
region->sy += region->height - 1;
region->dy += region->height - 1;
cmd |= CO_CMD_L_INC_UP;
}
cyber2000_accel_wait(cfb);
cyber2000fb_writeb(0x00, CO_REG_CONTROL, cfb);
cyber2000fb_writew(width, CO_REG_PIXWIDTH, cfb);
cyber2000fb_writew(height, CO_REG_PIXHEIGHT, cfb);
cyber2000fb_writeb(0, CO_REG_CONTROL, cfb);
cyber2000fb_writew(region->width - 1, CO_REG_PIXWIDTH, cfb);
cyber2000fb_writew(region->height - 1, CO_REG_PIXHEIGHT, cfb);
if (var->bits_per_pixel == 24) {
src = region->sx + region->sy * cfb->fb.var.xres_virtual;
dst = region->dx + region->dy * cfb->fb.var.xres_virtual;
if (cfb->fb.var.bits_per_pixel == 24) {
cyber2000fb_writeb(dst, CO_REG_X_PHASE, cfb);
src *= 3;
dst *= 3;
}
if (var->bits_per_pixel == 16)
bgx = ((u16 *)display->dispsw_data)[bgx];
else if (var->bits_per_pixel >= 24)
bgx = ((u32 *)display->dispsw_data)[bgx];
cyber2000fb_writel(bgx, CO_REG_FGCOLOUR, cfb);
cyber2000fb_writel(src, CO_REG_SRC1_PTR, cfb);
cyber2000fb_writel(dst, CO_REG_DEST_PTR, cfb);
cyber2000fb_writeb(CO_FG_MIX_SRC, CO_REG_FGMIX, cfb);
cyber2000fb_writew(CO_CMD_L_PATTERN_FGCOL, CO_REG_CMD_L, cfb);
cyber2000fb_writew(CO_CMD_H_BLITTER, CO_REG_CMD_H, cfb);
}
static void
cyber2000_accel_putc(struct vc_data *conp, struct display *display, int c,
int yy, int xx)
{
struct cfb_info *cfb = (struct cfb_info *)display->fb_info;
cyber2000_accel_wait(cfb);
cfb->dispsw->putc(conp, display, c, yy, xx);
cyber2000fb_writew(CO_FG_MIX_SRC, CO_REG_FGMIX, cfb);
cyber2000fb_writew(cmd, CO_REG_CMD_L, cfb);
cyber2000fb_writew(CO_CMD_H_FGSRCMAP | CO_CMD_H_BLITTER,
CO_REG_CMD_H, cfb);
}
static void
cyber2000_accel_putcs(struct vc_data *conp, struct display *display,
const unsigned short *s, int count, int yy, int xx)
cyber2000fb_imageblit(struct fb_info *info, struct fb_image *image)
{
struct cfb_info *cfb = (struct cfb_info *)display->fb_info;
struct cfb_info *cfb = (struct cfb_info *)info;
cyber2000_accel_wait(cfb);
cfb->dispsw->putcs(conp, display, s, count, yy, xx);
// if (!(cfb->fb.var.accel_flags & FB_ACCELF_TEXT)) {
cfb_imageblit(info, image);
return;
// }
}
static void cyber2000_accel_revc(struct display *display, int xx, int yy)
static int cyber2000fb_sync(struct fb_info *info)
{
struct cfb_info *cfb = (struct cfb_info *)display->fb_info;
cyber2000_accel_wait(cfb);
cfb->dispsw->revc(display, xx, yy);
}
struct cfb_info *cfb = (struct cfb_info *)info;
int count = 100000;
static void
cyber2000_accel_clear_margins(struct vc_data *conp, struct display *display,
int bottom_only)
{
struct cfb_info *cfb = (struct cfb_info *)display->fb_info;
if (!(cfb->fb.var.accel_flags & FB_ACCELF_TEXT))
return 0;
cfb->dispsw->clear_margins(conp, display, bottom_only);
while (cyber2000fb_readb(CO_REG_CONTROL, cfb) & CO_CTRL_BUSY) {
if (!count--) {
debug_printf("accel_wait timed out\n");
cyber2000fb_writeb(0, CO_REG_CONTROL, cfb);
break;
}
udelay(1);
}
return 0;
}
static struct display_switch fbcon_cyber_accel = {
.setup = cyber2000_accel_setup,
.bmove = cyber2000_accel_bmove,
.clear = cyber2000_accel_clear,
.putc = cyber2000_accel_putc,
.putcs = cyber2000_accel_putcs,
.revc = cyber2000_accel_revc,
.clear_margins = cyber2000_accel_clear_margins,
.fontwidthmask = FONTWIDTH(8)|FONTWIDTH(16)
};
/*
* ===========================================================================
*/
static inline u32 convert_bitfield(u_int val, struct fb_bitfield *bf)
{
......@@ -324,7 +265,7 @@ cyber2000fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info)
{
struct cfb_info *cfb = (struct cfb_info *)info;
struct fb_var_screeninfo *var = &cfb->display->var;
struct fb_var_screeninfo *var = &cfb->fb.var;
u32 pseudo_val;
int ret = 1;
......@@ -332,7 +273,6 @@ cyber2000fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
default:
return 1;
#ifdef FBCON_HAS_CFB8
/*
* Pseudocolour:
* 8 8
......@@ -359,7 +299,6 @@ cyber2000fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
cyber2000fb_writeb(green, 0x3c9, cfb);
cyber2000fb_writeb(blue, 0x3c9, cfb);
return 0;
#endif
/*
* Direct colour:
......@@ -455,13 +394,8 @@ cyber2000fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
/*
* Now set our pseudo palette for the CFB16/24/32 drivers.
*/
if (regno < 16) {
if (var->bits_per_pixel == 16)
((u16 *)cfb->fb.pseudo_palette)[regno] = pseudo_val;
else
if (regno < 16)
((u32 *)cfb->fb.pseudo_palette)[regno] = pseudo_val;
ret = 0;
}
return ret;
}
......@@ -800,20 +734,16 @@ cyber2000fb_decode_clock(struct par_info *hw, struct cfb_info *cfb,
}
/*
* Decode the info required for the hardware.
* This involves the PLL parameters for the dot clock,
* CRTC registers, and accelerator settings.
* Set the User Defined Part of the Display
*/
static int
cyber2000fb_decode_var(struct fb_var_screeninfo *var, struct cfb_info *cfb,
struct par_info *hw)
cyber2000fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct cfb_info *cfb = (struct cfb_info *)info;
struct par_info hw;
unsigned int mem;
int err;
hw->width = var->xres_virtual;
hw->ramdac = RAMDAC_VREFEN | RAMDAC_DAC8BIT;
var->transp.msb_right = 0;
var->red.msb_right = 0;
var->green.msb_right = 0;
......@@ -822,10 +752,6 @@ cyber2000fb_decode_var(struct fb_var_screeninfo *var, struct cfb_info *cfb,
switch (var->bits_per_pixel) {
#ifdef FBCON_HAS_CFB8
case 8: /* PSEUDOCOLOUR, 256 */
hw->co_pixfmt = CO_PIXFMT_8BPP;
hw->pitch = hw->width >> 3;
hw->extseqmisc = EXT_SEQ_MISC_8;
var->transp.offset = 0;
var->transp.length = 0;
var->red.offset = 0;
......@@ -838,13 +764,8 @@ cyber2000fb_decode_var(struct fb_var_screeninfo *var, struct cfb_info *cfb,
#endif
#ifdef FBCON_HAS_CFB16
case 16:/* DIRECTCOLOUR, 64k or 32k */
hw->co_pixfmt = CO_PIXFMT_16BPP;
hw->pitch = hw->width >> 2;
switch (var->green.length) {
case 6: /* RGB565, 64k */
hw->extseqmisc = EXT_SEQ_MISC_16_RGB565;
var->transp.offset = 0;
var->transp.length = 0;
var->red.offset = 11;
......@@ -857,8 +778,6 @@ cyber2000fb_decode_var(struct fb_var_screeninfo *var, struct cfb_info *cfb,
default:
case 5: /* RGB555, 32k */
hw->extseqmisc = EXT_SEQ_MISC_16_RGB555;
var->transp.offset = 0;
var->transp.length = 0;
var->red.offset = 10;
......@@ -870,8 +789,6 @@ cyber2000fb_decode_var(struct fb_var_screeninfo *var, struct cfb_info *cfb,
break;
case 4: /* RGB444, 4k + transparency? */
hw->extseqmisc = EXT_SEQ_MISC_16_RGB444;
var->transp.offset = 12;
var->transp.length = 4;
var->red.offset = 8;
......@@ -886,12 +803,6 @@ cyber2000fb_decode_var(struct fb_var_screeninfo *var, struct cfb_info *cfb,
#endif
#ifdef FBCON_HAS_CFB24
case 24:/* TRUECOLOUR, 16m */
hw->co_pixfmt = CO_PIXFMT_24BPP;
hw->width *= 3;
hw->pitch = hw->width >> 3;
hw->ramdac |= (RAMDAC_BYPASS | RAMDAC_RAMPWRDN);
hw->extseqmisc = EXT_SEQ_MISC_24_RGB888;
var->transp.offset = 0;
var->transp.length = 0;
var->red.offset = 16;
......@@ -904,11 +815,6 @@ cyber2000fb_decode_var(struct fb_var_screeninfo *var, struct cfb_info *cfb,
#endif
#ifdef FBCON_HAS_CFB32
case 32:/* TRUECOLOUR, 16m */
hw->co_pixfmt = CO_PIXFMT_32BPP;
hw->pitch = hw->width >> 1;
hw->ramdac |= (RAMDAC_BYPASS | RAMDAC_RAMPWRDN);
hw->extseqmisc = EXT_SEQ_MISC_32;
var->transp.offset = 24;
var->transp.length = 8;
var->red.offset = 16;
......@@ -933,127 +839,107 @@ cyber2000fb_decode_var(struct fb_var_screeninfo *var, struct cfb_info *cfb,
if (var->xres > var->xres_virtual)
var->xres = var->xres_virtual;
err = cyber2000fb_decode_clock(hw, cfb, var);
err = cyber2000fb_decode_clock(&hw, cfb, var);
if (err)
return err;
err = cyber2000fb_decode_crtc(hw, cfb, var);
err = cyber2000fb_decode_crtc(&hw, cfb, var);
if (err)
return err;
hw->width -= 1;
hw->fetch = hw->pitch;
if (!(cfb->mem_ctl2 & MEM_CTL2_64BIT))
hw->fetch <<= 1;
hw->fetch += 1;
return 0;
}
/*
* Set the User Defined Part of the Display
*/
static int
cyber2000fb_set_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info)
static int cyber2000fb_set_par(struct fb_info *info)
{
struct cfb_info *cfb = (struct cfb_info *)info;
struct display *display;
struct fb_var_screeninfo *var = &cfb->fb.var;
struct par_info hw;
int err, chgvar;
/*
* CONUPDATE and SMOOTH_XPAN are equal. However,
* SMOOTH_XPAN is only used internally by fbcon.
*/
if (var->vmode & FB_VMODE_CONUPDATE) {
var->vmode |= FB_VMODE_YWRAP;
var->xoffset = cfb->display->var.xoffset;
var->yoffset = cfb->display->var.yoffset;
}
unsigned int mem;
err = cyber2000fb_decode_var(var, cfb, &hw);
if (err)
return err;
hw.width = var->xres_virtual;
hw.ramdac = RAMDAC_VREFEN | RAMDAC_DAC8BIT;
if (var->activate & FB_ACTIVATE_TEST)
return 0;
switch (var->bits_per_pixel) {
case 8:
hw.co_pixfmt = CO_PIXFMT_8BPP;
hw.pitch = hw.width >> 3;
hw.extseqmisc = EXT_SEQ_MISC_8;
break;
if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_NOW)
return -EINVAL;
case 16:
hw.co_pixfmt = CO_PIXFMT_16BPP;
hw.pitch = hw.width >> 2;
if (con < 0) {
display = cfb->fb.disp;
} else {
display = fb_display + con;
switch (var->green.length) {
case 6: /* RGB565, 64k */
hw.extseqmisc = EXT_SEQ_MISC_16_RGB565;
break;
case 5: /* RGB555, 32k */
hw.extseqmisc = EXT_SEQ_MISC_16_RGB555;
break;
case 4: /* RGB444, 4k + transparency? */
hw.extseqmisc = EXT_SEQ_MISC_16_RGB444;
break;
default:
BUG();
}
case 24:/* TRUECOLOUR, 16m */
hw.co_pixfmt = CO_PIXFMT_24BPP;
hw.width *= 3;
hw.pitch = hw.width >> 3;
hw.ramdac |= (RAMDAC_BYPASS | RAMDAC_RAMPWRDN);
hw.extseqmisc = EXT_SEQ_MISC_24_RGB888;
break;
chgvar = cfb->fb.var.xres != var->xres ||
cfb->fb.var.yres != var->yres ||
cfb->fb.var.xres_virtual != var->xres_virtual ||
cfb->fb.var.yres_virtual != var->yres_virtual ||
cfb->fb.var.bits_per_pixel != var->bits_per_pixel;
if (memcmp(&cfb->fb.var.red, &var->red, sizeof(var->red)) ||
memcmp(&cfb->fb.var.green, &var->green, sizeof(var->green)) ||
memcmp(&cfb->fb.var.blue, &var->blue, sizeof(var->blue)))
chgvar = 1;
if (con >= 0 && chgvar == 0)
return 0;
case 32:/* TRUECOLOUR, 16m */
hw.co_pixfmt = CO_PIXFMT_32BPP;
hw.pitch = hw.width >> 1;
hw.ramdac |= (RAMDAC_BYPASS | RAMDAC_RAMPWRDN);
hw.extseqmisc = EXT_SEQ_MISC_32;
break;
if (con < 0)
chgvar = 0;
default:
BUG();
}
/*
* If we are setting all the virtual consoles, also set the
* defaults used to create new consoles.
* Sigh, this is absolutely disgusting, but caused by
* the way the fbcon developers want to separate out
* the "checking" and the "setting" of the video mode.
*
* If the mode is not suitable for the hardware here,
* we can't prevent it being set by returning an error.
*
* In theory, since NetWinders contain just one VGA card,
* we should never end up hitting this problem.
*/
err = var->activate;
var->activate = FB_ACTIVATE_NOW;
if (err & FB_ACTIVATE_ALL)
cfb->fb.disp->var = *var;
BUG_ON(cyber2000fb_decode_clock(&hw, cfb, var) != 0);
BUG_ON(cyber2000fb_decode_crtc(&hw, cfb, var) != 0);
hw.width -= 1;
hw.fetch = hw.pitch;
if (!(cfb->mem_ctl2 & MEM_CTL2_64BIT))
hw.fetch <<= 1;
hw.fetch += 1;
cfb->fb.var = *var;
cfb->fb.fix.line_length = var->xres_virtual * var->bits_per_pixel / 8;
switch (var->bits_per_pixel) {
#ifdef FBCON_HAS_CFB8
case 8: /* PSEUDOCOLOUR, 256 */
cfb->dispsw = &fbcon_cfb8;
display->dispsw_data = NULL;
break;
#endif
#ifdef FBCON_HAS_CFB16
case 16:/* DIRECTCOLOUR */
cfb->dispsw = &fbcon_cfb16;
display->dispsw_data = cfb->fb.pseudo_palette;
break;
#endif
#ifdef FBCON_HAS_CFB24
case 24:/* TRUECOLOUR, 16m */
cfb->dispsw = &fbcon_cfb24;
display->dispsw_data = cfb->fb.pseudo_palette;
break;
#endif
#ifdef FBCON_HAS_CFB32
case 32:/* TRUECOLOUR, 16m */
cfb->dispsw = &fbcon_cfb32;
display->dispsw_data = cfb->fb.pseudo_palette;
break;
#endif
default:/* in theory this should never happen */
printk(KERN_WARNING "%s: no support for %dbpp\n",
cfb->fb.fix.id, var->bits_per_pixel);
cfb->dispsw = &fbcon_dummy;
break;
}
/*
* Same here - if the size of the video mode exceeds the
* available RAM, we can't prevent this mode being set.
*
* In theory, since NetWinders contain just one VGA card,
* we should never end up hitting this problem.
*/
mem = cfb->fb.fix.line_length * var->yres_virtual;
BUG_ON(mem > cfb->fb.fix.smem_len);
/*
* 8bpp displays are always pseudo colour.
* 16bpp and above are direct colour or true colour, depending
* on whether the RAMDAC palettes are bypassed. (Direct colour
* has palettes, true colour does not.)
* 8bpp displays are always pseudo colour. 16bpp and above
* are direct colour or true colour, depending on whether
* the RAMDAC palettes are bypassed. (Direct colour has
* palettes, true colour does not.)
*/
if (var->bits_per_pixel == 8)
cfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
......@@ -1062,20 +948,8 @@ cyber2000fb_set_var(struct fb_var_screeninfo *var, int con,
else
cfb->fb.fix.visual = FB_VISUAL_DIRECTCOLOR;
if (var->accel_flags & FB_ACCELF_TEXT && cfb->dispsw != &fbcon_dummy)
display->dispsw = &fbcon_cyber_accel;
else
display->dispsw = cfb->dispsw;
display->can_soft_blank = 1;
display->inverse = 0;
cyber2000fb_set_timing(cfb, &hw);
cyber2000fb_update_start(cfb, var);
fb_set_cmap(&cfb->fb.cmap, 1, &cfb->fb);
if (chgvar && cfb->fb.changevar)
cfb->fb.changevar(con);
return 0;
}
......@@ -1085,85 +959,22 @@ cyber2000fb_set_var(struct fb_var_screeninfo *var, int con,
* Pan or Wrap the Display
*/
static int
cyber2000fb_pan_display(struct fb_var_screeninfo *var, int con,
struct fb_info *info)
cyber2000fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct cfb_info *cfb = (struct cfb_info *)info;
u_int y_bottom;
y_bottom = var->yoffset;
if (!(var->vmode & FB_VMODE_YWRAP))
y_bottom += var->yres;
if (var->xoffset > (var->xres_virtual - var->xres))
return -EINVAL;
if (y_bottom > cfb->display->var.yres_virtual)
return -EINVAL;
if (cyber2000fb_update_start(cfb, var))
return -EINVAL;
cfb->display->var.xoffset = var->xoffset;
cfb->display->var.yoffset = var->yoffset;
cfb->fb.var.xoffset = var->xoffset;
cfb->fb.var.yoffset = var->yoffset;
if (var->vmode & FB_VMODE_YWRAP) {
cfb->display->var.vmode |= FB_VMODE_YWRAP;
cfb->fb.var.vmode |= FB_VMODE_YWRAP;
} else {
cfb->display->var.vmode &= ~FB_VMODE_YWRAP;
}
return 0;
}
/*
* Update the `var' structure (called by fbcon.c)
*
* This call looks only at yoffset and the FB_VMODE_YWRAP flag in `var'.
* Since it's called by a kernel driver, no range checking is done.
*/
static int cyber2000fb_updatevar(int con, struct fb_info *info)
{
struct cfb_info *cfb = (struct cfb_info *)info;
return cyber2000fb_update_start(cfb, &fb_display[con].var);
}
static int cyber2000fb_switch(int con, struct fb_info *info)
{
struct cfb_info *cfb = (struct cfb_info *)info;
struct display *display = cfb->display;
struct fb_cmap *cmap;
if (display) {
/*
* Save the old colormap and video mode.
*/
if (display->cmap.len)
fb_copy_cmap(&cfb->fb.cmap, &display->cmap, 0);
cfb->fb.var.vmode &= ~FB_VMODE_YWRAP;
}
cfb->display = display = fb_display + con;
/*
* Install the new colormap and change the video mode. By default,
* fbcon sets all the colormaps and video modes to the default
* values at bootup.
*
* Really, we want to set the colourmap size depending on the
* depth of the new video mode. For now, we leave it at its
* default 256 entry.
*/
if (display->cmap.len)
cmap = &display->cmap;
else
cmap = fb_default_cmap(1 << display->var.bits_per_pixel);
fb_copy_cmap(cmap, &cfb->fb.cmap, 0);
display->var.activate = FB_ACTIVATE_NOW;
cyber2000fb_set_var(&display->var, con, &cfb->fb);
return 0;
}
......@@ -1243,12 +1054,16 @@ static int cyber2000fb_blank(int blank, struct fb_info *info)
static struct fb_ops cyber2000fb_ops = {
.owner = THIS_MODULE,
.fb_set_var = cyber2000fb_set_var,
.fb_get_cmap = gen_get_cmap,
.fb_set_cmap = gen_set_cmap,
.fb_check_var = cyber2000fb_check_var,
.fb_set_par = cyber2000fb_set_par,
.fb_setcolreg = cyber2000fb_setcolreg,
.fb_pan_display = cyber2000fb_pan_display,
.fb_blank = cyber2000fb_blank,
.fb_pan_display = cyber2000fb_pan_display,
.fb_fillrect = cyber2000fb_fillrect,
.fb_copyarea = cyber2000fb_copyarea,
.fb_imageblit = cyber2000fb_imageblit,
.fb_cursor = soft_cursor,
.fb_sync = cyber2000fb_sync,
};
/*
......@@ -1295,7 +1110,7 @@ void cyber2000fb_disable_extregs(struct cfb_info *cfb)
void cyber2000fb_get_fb_var(struct cfb_info *cfb, struct fb_var_screeninfo *var)
{
memcpy(var, &cfb->display->var, sizeof(struct fb_var_screeninfo));
memcpy(var, &cfb->fb.var, sizeof(struct fb_var_screeninfo));
}
/*
......@@ -1313,8 +1128,6 @@ int cyber2000fb_attach(struct cyberpro_info *info, int idx)
info->info = int_cfb_info;
strncpy(info->dev_name, int_cfb_info->fb.fix.id, sizeof(info->dev_name));
MOD_INC_USE_COUNT;
}
return int_cfb_info != NULL;
......@@ -1325,7 +1138,6 @@ int cyber2000fb_attach(struct cyberpro_info *info, int idx)
*/
void cyber2000fb_detach(int idx)
{
MOD_DEC_USE_COUNT;
}
EXPORT_SYMBOL(cyber2000fb_attach);
......@@ -1411,13 +1223,13 @@ cyberpro_alloc_fb_info(unsigned int id, char *name)
{
struct cfb_info *cfb;
cfb = kmalloc(sizeof(struct cfb_info) + sizeof(struct display) +
cfb = kmalloc(sizeof(struct cfb_info) +
sizeof(u32) * 16, GFP_KERNEL);
if (!cfb)
return NULL;
memset(cfb, 0, sizeof(struct cfb_info) + sizeof(struct display));
memset(cfb, 0, sizeof(struct cfb_info));
cfb->id = id;
......@@ -1467,17 +1279,10 @@ cyberpro_alloc_fb_info(unsigned int id, char *name)
cfb->fb.var.width = -1;
cfb->fb.var.accel_flags = FB_ACCELF_TEXT;
strcpy(cfb->fb.modename, cfb->fb.fix.id);
strcpy(cfb->fb.fontname, default_font);
cfb->fb.fbops = &cyber2000fb_ops;
cfb->fb.changevar = NULL;
cfb->fb.switch_con = cyber2000fb_switch;
cfb->fb.updatevar = cyber2000fb_updatevar;
cfb->fb.flags = FBINFO_FLAG_DEFAULT;
cfb->fb.node = NODEV;
cfb->fb.disp = (struct display *)(cfb + 1);
cfb->fb.pseudo_palette = (void *)(cfb->fb.disp + 1);
cfb->fb.pseudo_palette = (void *)(cfb + 1);
fb_alloc_cmap(&cfb->fb.cmap, NR_PALETTE, 0);
......@@ -1575,7 +1380,7 @@ static int __devinit cyberpro_common_probe(struct cfb_info *cfb)
if (cfb->fb.var.yres_virtual < cfb->fb.var.yres)
cfb->fb.var.yres_virtual = cfb->fb.var.yres;
cyber2000fb_set_var(&cfb->fb.var, -1, &cfb->fb);
// fb_set_var(&cfb->fb.var, -1, &cfb->fb);
/*
* Calculate the hsync and vsync frequencies. Note that
......@@ -1614,8 +1419,7 @@ static void cyberpro_common_resume(struct cfb_info *cfb)
* Restore the old video mode and the palette.
* We also need to tell fbcon to redraw the console.
*/
cfb->fb.var.activate = FB_ACTIVATE_NOW;
cyber2000fb_set_var(&cfb->fb.var, -1, &cfb->fb);
cyber2000fb_set_par(&cfb->fb);
}
#ifdef CONFIG_ARCH_SHARK
......
drivers/video/fbmem.c
View file @ 5ec5104a
......@@ -1111,13 +1111,11 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
#elif defined(__mips__)
pgprot_val(vma->vm_page_prot) &= ~_CACHE_MASK;
pgprot_val(vma->vm_page_prot) |= _CACHE_UNCACHED;
#elif defined(__arm__)
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
#elif defined(__sh__)
pgprot_val(vma->vm_page_prot) &= ~_PAGE_CACHABLE;
#elif defined(__hppa__)
pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
#elif defined(__ia64__)
#elif defined(__ia64__) || defined(__arm__)
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
#else
#warning What do we have to do here??
......
include/asm-arm/div64.h
View file @ 5ec5104a
......@@ -4,9 +4,13 @@
/* We're not 64-bit, but... */
#define do_div(n,base) \
({ \
int __res; \
__res = ((unsigned long)n) % (unsigned int)base; \
n = ((unsigned long)n) / (unsigned int)base; \
register int __res asm("r2") = base; \
register unsigned long long __n asm("r0") = n; \
asm("bl do_div64" \
: "=r" (__n), "=r" (__res) \
: "0" (__n), "1" (__res) \
: "r3", "ip", "lr", "cc"); \
n = __n; \
__res; \
})
......
include/asm-arm/proc-armv/pgtable.h
View file @ 5ec5104a
......@@ -103,6 +103,7 @@
* entries are stored 1024 bytes below.
*/
#define L_PTE_PRESENT (1 << 0)
#define L_PTE_FILE (1 << 1) /* only when !PRESENT */
#define L_PTE_YOUNG (1 << 1)
#define L_PTE_BUFFERABLE (1 << 2) /* matches PTE */
#define L_PTE_CACHEABLE (1 << 3) /* matches PTE */
......@@ -173,6 +174,7 @@ static inline pte_t *pmd_page_kernel(pmd_t pmd)
#define pte_exec(pte) (pte_val(pte) & L_PTE_EXEC)
#define pte_dirty(pte) (pte_val(pte) & L_PTE_DIRTY)
#define pte_young(pte) (pte_val(pte) & L_PTE_YOUNG)
#define pte_file(pte) (pte_val(pte) & L_PTE_FILE)
#define PTE_BIT_FUNC(fn,op) \
static inline pte_t pte_##fn(pte_t pte) { pte_val(pte) op; return pte; }
......@@ -196,6 +198,11 @@ PTE_BIT_FUNC(mkyoung, |= L_PTE_YOUNG);
#define pgtable_cache_init() do { } while (0)
#define pte_to_pgoff(x) (pte_val(x) >> 2)
#define pgoff_to_pte(x) __pte(((x) << 2) | L_PTE_FILE)
#define PTE_FILE_MAX_BITS 30
#endif /* __ASSEMBLY__ */
#endif /* __ASM_PROC_PGTABLE_H */
include/asm-arm/system.h
View file @ 5ec5104a
......@@ -65,11 +65,12 @@ extern int cpu_architecture(void);
* The `mb' is to tell GCC not to cache `current' across this call.
*/
struct thread_info;
extern struct thread_info *__switch_to(struct thread_info *, struct thread_info *);
struct task_struct;
extern struct task_struct *__switch_to(struct task_struct *, struct thread_info *, struct thread_info *);
#define switch_to(prev,next,last) \
do { \
__switch_to(prev->thread_info,next->thread_info); \
last = __switch_to(prev,prev->thread_info,next->thread_info); \
mb(); \
} while (0)
......
include/asm-sparc64/rwsem.h
View file @ 5ec5104a
......@@ -18,11 +18,6 @@
struct rwsem_waiter;
extern struct rw_semaphore *FASTCALL(rwsem_down_read_failed(struct rw_semaphore *sem));
extern struct rw_semaphore *FASTCALL(rwsem_down_write_failed(struct rw_semaphore *sem));
extern struct rw_semaphore *FASTCALL(rwsem_wake(struct rw_semaphore *));
extern struct rw_semaphore *FASTCALL(rwsem_downgrade_wake(struct rw_semaphore *));
struct rw_semaphore {
signed int count;
#define RWSEM_UNLOCKED_VALUE 0x00000000
......@@ -48,222 +43,13 @@ static __inline__ void init_rwsem(struct rw_semaphore *sem)
INIT_LIST_HEAD(&sem->wait_list);
}
static __inline__ void __down_read(struct rw_semaphore *sem)
{
__asm__ __volatile__(
"! beginning __down_read\n"
"1:\tlduw [%0], %%g5\n\t"
"add %%g5, 1, %%g7\n\t"
"cas [%0], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" add %%g7, 1, %%g7\n\t"
"cmp %%g7, 0\n\t"
"bl,pn %%icc, 3f\n\t"
" membar #StoreLoad | #StoreStore\n"
"2:\n\t"
".subsection 2\n"
"3:\tmov %0, %%g5\n\t"
"save %%sp, -160, %%sp\n\t"
"mov %%g1, %%l1\n\t"
"mov %%g2, %%l2\n\t"
"mov %%g3, %%l3\n\t"
"call %1\n\t"
" mov %%g5, %%o0\n\t"
"mov %%l1, %%g1\n\t"
"mov %%l2, %%g2\n\t"
"ba,pt %%xcc, 2b\n\t"
" restore %%l3, %%g0, %%g3\n\t"
".previous\n\t"
"! ending __down_read"
: : "r" (sem), "i" (rwsem_down_read_failed)
: "g5", "g7", "memory", "cc");
}
static __inline__ int __down_read_trylock(struct rw_semaphore *sem)
{
int result;
__asm__ __volatile__(
"! beginning __down_read_trylock\n"
"1:\tlduw [%1], %%g5\n\t"
"add %%g5, 1, %%g7\n\t"
"cmp %%g7, 0\n\t"
"bl,pn %%icc, 2f\n\t"
" mov 0, %0\n\t"
"cas [%1], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" mov 1, %0\n\t"
"membar #StoreLoad | #StoreStore\n"
"2:\n\t"
"! ending __down_read_trylock"
: "=&r" (result)
: "r" (sem)
: "g5", "g7", "memory", "cc");
return result;
}
static __inline__ void __down_write(struct rw_semaphore *sem)
{
__asm__ __volatile__(
"! beginning __down_write\n\t"
"sethi %%hi(%2), %%g1\n\t"
"or %%g1, %%lo(%2), %%g1\n"
"1:\tlduw [%0], %%g5\n\t"
"add %%g5, %%g1, %%g7\n\t"
"cas [%0], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" cmp %%g7, 0\n\t"
"bne,pn %%icc, 3f\n\t"
" membar #StoreLoad | #StoreStore\n"
"2:\n\t"
".subsection 2\n"
"3:\tmov %0, %%g5\n\t"
"save %%sp, -160, %%sp\n\t"
"mov %%g2, %%l2\n\t"
"mov %%g3, %%l3\n\t"
"call %1\n\t"
" mov %%g5, %%o0\n\t"
"mov %%l2, %%g2\n\t"
"ba,pt %%xcc, 2b\n\t"
" restore %%l3, %%g0, %%g3\n\t"
".previous\n\t"
"! ending __down_write"
: : "r" (sem), "i" (rwsem_down_write_failed),
"i" (RWSEM_ACTIVE_WRITE_BIAS)
: "g1", "g5", "g7", "memory", "cc");
}
static __inline__ int __down_write_trylock(struct rw_semaphore *sem)
{
int result;
__asm__ __volatile__(
"! beginning __down_write_trylock\n\t"
"sethi %%hi(%2), %%g1\n\t"
"or %%g1, %%lo(%2), %%g1\n"
"1:\tlduw [%1], %%g5\n\t"
"cmp %%g5, 0\n\t"
"bne,pn %%icc, 2f\n\t"
" mov 0, %0\n\t"
"add %%g5, %%g1, %%g7\n\t"
"cas [%1], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" mov 1, %0\n\t"
"membar #StoreLoad | #StoreStore\n"
"2:\n\t"
"! ending __down_write_trylock"
: "=&r" (result)
: "r" (sem), "i" (RWSEM_ACTIVE_WRITE_BIAS)
: "g1", "g5", "g7", "memory", "cc");
return result;
}
static __inline__ void __up_read(struct rw_semaphore *sem)
{
__asm__ __volatile__(
"! beginning __up_read\n\t"
"1:\tlduw [%0], %%g5\n\t"
"sub %%g5, 1, %%g7\n\t"
"cas [%0], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" cmp %%g7, 0\n\t"
"bl,pn %%icc, 3f\n\t"
" membar #StoreLoad | #StoreStore\n"
"2:\n\t"
".subsection 2\n"
"3:\tsethi %%hi(%2), %%g1\n\t"
"sub %%g7, 1, %%g7\n\t"
"or %%g1, %%lo(%2), %%g1\n\t"
"andcc %%g7, %%g1, %%g0\n\t"
"bne,pn %%icc, 2b\n\t"
" mov %0, %%g5\n\t"
"save %%sp, -160, %%sp\n\t"
"mov %%g2, %%l2\n\t"
"mov %%g3, %%l3\n\t"
"call %1\n\t"
" mov %%g5, %%o0\n\t"
"mov %%l2, %%g2\n\t"
"ba,pt %%xcc, 2b\n\t"
" restore %%l3, %%g0, %%g3\n\t"
".previous\n\t"
"! ending __up_read"
: : "r" (sem), "i" (rwsem_wake),
"i" (RWSEM_ACTIVE_MASK)
: "g1", "g5", "g7", "memory", "cc");
}
static __inline__ void __up_write(struct rw_semaphore *sem)
{
__asm__ __volatile__(
"! beginning __up_write\n\t"
"sethi %%hi(%2), %%g1\n\t"
"or %%g1, %%lo(%2), %%g1\n"
"1:\tlduw [%0], %%g5\n\t"
"sub %%g5, %%g1, %%g7\n\t"
"cas [%0], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" sub %%g7, %%g1, %%g7\n\t"
"cmp %%g7, 0\n\t"
"bl,pn %%icc, 3f\n\t"
" membar #StoreLoad | #StoreStore\n"
"2:\n\t"
".subsection 2\n"
"3:\tmov %0, %%g5\n\t"
"save %%sp, -160, %%sp\n\t"
"mov %%g2, %%l2\n\t"
"mov %%g3, %%l3\n\t"
"call %1\n\t"
" mov %%g5, %%o0\n\t"
"mov %%l2, %%g2\n\t"
"ba,pt %%xcc, 2b\n\t"
" restore %%l3, %%g0, %%g3\n\t"
".previous\n\t"
"! ending __up_write"
: : "r" (sem), "i" (rwsem_wake),
"i" (RWSEM_ACTIVE_WRITE_BIAS)
: "g1", "g5", "g7", "memory", "cc");
}
static __inline__ void __downgrade_write(struct rw_semaphore *sem)
{
__asm__ __volatile__(
"! beginning __up_write\n\t"
"sethi %%hi(%2), %%g1\n\t"
"or %%g1, %%lo(%2), %%g1\n"
"1:\tlduw [%0], %%g5\n\t"
"sub %%g5, %%g1, %%g7\n\t"
"cas [%0], %%g5, %%g7\n\t"
"cmp %%g5, %%g7\n\t"
"bne,pn %%icc, 1b\n\t"
" sub %%g7, %%g1, %%g7\n\t"
"cmp %%g7, 0\n\t"
"bl,pn %%icc, 3f\n\t"
" membar #StoreLoad | #StoreStore\n"
"2:\n\t"
".subsection 2\n"
"3:\tmov %0, %%g5\n\t"
"save %%sp, -160, %%sp\n\t"
"mov %%g2, %%l2\n\t"
"mov %%g3, %%l3\n\t"
"call %1\n\t"
" mov %%g5, %%o0\n\t"
"mov %%l2, %%g2\n\t"
"ba,pt %%xcc, 2b\n\t"
" restore %%l3, %%g0, %%g3\n\t"
".previous\n\t"
"! ending __up_write"
: : "r" (sem), "i" (rwsem_downgrade_wake),
"i" (RWSEM_WAITING_BIAS)
: "g1", "g5", "g7", "memory", "cc");
}
extern void __down_read(struct rw_semaphore *sem);
extern int __down_read_trylock(struct rw_semaphore *sem);
extern void __down_write(struct rw_semaphore *sem);
extern int __down_write_trylock(struct rw_semaphore *sem);
extern void __up_read(struct rw_semaphore *sem);
extern void __up_write(struct rw_semaphore *sem);
extern void __downgrade_write(struct rw_semaphore *sem);
static __inline__ int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
{
......
include/asm-sparc64/timer.h
View file @ 5ec5104a
......@@ -66,4 +66,10 @@ extern unsigned long timer_tick_offset;
extern void timer_tick_interrupt(struct pt_regs *);
#endif
#ifndef CONFIG_SMP
extern unsigned long up_clock_tick;
#endif
extern unsigned long sparc64_get_clock_tick(unsigned int cpu);
#endif /* _SPARC64_TIMER_H */
include/linux/skbuff.h
View file @ 5ec5104a
......@@ -231,15 +231,8 @@ struct sk_buff {
pkt_type,
ip_summed;
__u32 priority;
atomic_t users;
unsigned short protocol,
security;
unsigned int truesize;
unsigned char *head,
*data,
*tail,
*end;
void (*destructor)(struct sk_buff *skb);
#ifdef CONFIG_NETFILTER
......@@ -261,6 +254,14 @@ struct sk_buff {
#ifdef CONFIG_NET_SCHED
__u32 tc_index; /* traffic control index */
#endif
/* These elements must be at the end, see alloc_skb() for details. */
unsigned int truesize;
atomic_t users;
unsigned char *head,
*data,
*tail,
*end;
};
#define SK_WMEM_MAX 65535
......
include/linux/xfrm.h
View file @ 5ec5104a
......@@ -42,7 +42,6 @@ struct xfrm_selector
__u8 proto;
int ifindex;
uid_t user;
void *owner;
};
#define XFRM_INF (~(u64)0)
......@@ -164,8 +163,8 @@ struct xfrm_usersa_id {
struct xfrm_userspi_info {
struct xfrm_usersa_info info;
u32 min;
u32 max;
__u32 min;
__u32 max;
};
struct xfrm_userpolicy_info {
......
include/net/ah.h
View file @ 5ec5104a
......@@ -17,9 +17,6 @@ struct ah_data
struct crypto_tfm *tfm;
};
extern void skb_ah_walk(const struct sk_buff *skb,
struct crypto_tfm *tfm, icv_update_fn_t icv_update);
static inline void
ah_hmac_digest(struct ah_data *ahp, struct sk_buff *skb, u8 *auth_data)
{
......@@ -27,7 +24,7 @@ ah_hmac_digest(struct ah_data *ahp, struct sk_buff *skb, u8 *auth_data)
memset(auth_data, 0, ahp->icv_trunc_len);
crypto_hmac_init(tfm, ahp->key, &ahp->key_len);
skb_ah_walk(skb, tfm, crypto_hmac_update);
skb_icv_walk(skb, tfm, 0, skb->len, crypto_hmac_update);
crypto_hmac_final(tfm, ahp->key, &ahp->key_len, ahp->work_icv);
memcpy(auth_data, ahp->work_icv, ahp->icv_trunc_len);
}
......
include/net/dst.h
View file @ 5ec5104a
......@@ -248,11 +248,6 @@ extern void dst_init(void);
struct flowi;
extern int xfrm_lookup(struct dst_entry **dst_p, struct flowi *fl,
struct sock *sk, int flags);
extern int xfrm6_lookup(struct dst_entry **dst_p, struct flowi *fl,
struct sock *sk, int flags);
extern void xfrm_init(void);
extern void xfrm6_init(void);
#endif
#endif /* _NET_DST_H */
include/net/esp.h
View file @ 5ec5104a
......@@ -33,8 +33,6 @@ struct esp_data
} auth;
};
extern void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm,
int offset, int len, icv_update_fn_t icv_update);
extern int skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len);
extern int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer);
extern void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len);
......
include/net/xfrm.h
View file @ 5ec5104a
......@@ -781,4 +781,7 @@ extern struct xfrm_algo_desc *xfrm_calg_get_byname(char *name);
struct crypto_tfm;
typedef void (icv_update_fn_t)(struct crypto_tfm *, struct scatterlist *, unsigned int);
extern void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm,
int offset, int len, icv_update_fn_t icv_update);
#endif /* _NET_XFRM_H */
net/core/skbuff.c
View file @ 5ec5104a
......@@ -195,46 +195,14 @@ struct sk_buff *alloc_skb(unsigned int size, int gfp_mask)
if (!data)
goto nodata;
/* XXX: does not include slab overhead */
skb->next = skb->prev = NULL;
skb->list = NULL;
skb->sk = NULL;
skb->stamp.tv_sec = 0; /* No idea about time */
skb->dev = NULL;
skb->dst = NULL;
skb->sp = NULL;
memset(skb->cb, 0, sizeof(skb->cb));
/* Set up other state */
skb->len = 0;
skb->data_len = 0;
skb->csum = 0;
skb->local_df = 0;
skb->cloned = 0;
skb->pkt_type = PACKET_HOST; /* Default type */
skb->ip_summed = 0;
skb->priority = 0;
atomic_set(&skb->users, 1);
skb->security = 0; /* By default packets are insecure */
memset(skb, 0, offsetof(struct sk_buff, truesize));
skb->truesize = size + sizeof(struct sk_buff);
/* Load the data pointers. */
skb->head = skb->data = skb->tail = data;
atomic_set(&skb->users, 1);
skb->head = data;
skb->data = data;
skb->tail = data;
skb->end = data + size;
skb->destructor = NULL;
#ifdef CONFIG_NETFILTER
skb->nfmark = skb->nfcache = 0;
skb->nfct = NULL;
#ifdef CONFIG_NETFILTER_DEBUG
skb->nf_debug = 0;
#endif
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
skb->nf_bridge = NULL;
#endif
#endif
#ifdef CONFIG_NET_SCHED
skb->tc_index = 0;
#endif
atomic_set(&(skb_shinfo(skb)->dataref), 1);
skb_shinfo(skb)->nr_frags = 0;
skb_shinfo(skb)->tso_size = 0;
......@@ -367,10 +335,10 @@ struct sk_buff *skb_clone(struct sk_buff *skb, int gfp_mask)
C(nh);
C(mac);
C(dst);
dst_clone(n->dst);
dst_clone(skb->dst);
C(sp);
#ifdef CONFIG_INET
secpath_get(n->sp);
secpath_get(skb->sp);
#endif
memcpy(n->cb, skb->cb, sizeof(skb->cb));
C(len);
......@@ -381,24 +349,20 @@ struct sk_buff *skb_clone(struct sk_buff *skb, int gfp_mask)
C(pkt_type);
C(ip_summed);
C(priority);
atomic_set(&n->users, 1);
C(protocol);
C(security);
C(truesize);
C(head);
C(data);
C(tail);
C(end);
n->destructor = NULL;
#ifdef CONFIG_NETFILTER
C(nfmark);
C(nfcache);
C(nfct);
nf_conntrack_get(skb->nfct);
#ifdef CONFIG_NETFILTER_DEBUG
C(nf_debug);
#endif
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
C(nf_bridge);
nf_bridge_get(skb->nf_bridge);
#endif
#endif /*CONFIG_NETFILTER*/
#if defined(CONFIG_HIPPI)
......@@ -407,15 +371,16 @@ struct sk_buff *skb_clone(struct sk_buff *skb, int gfp_mask)
#ifdef CONFIG_NET_SCHED
C(tc_index);
#endif
C(truesize);
atomic_set(&n->users, 1);
C(head);
C(data);
C(tail);
C(end);
atomic_inc(&(skb_shinfo(skb)->dataref));
skb->cloned = 1;
#ifdef CONFIG_NETFILTER
nf_conntrack_get(skb->nfct);
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
nf_bridge_get(skb->nf_bridge);
#endif
#endif
return n;
}
......@@ -439,7 +404,6 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
new->nh.raw = old->nh.raw + offset;
new->mac.raw = old->mac.raw + offset;
memcpy(new->cb, old->cb, sizeof(old->cb));
atomic_set(&new->users, 1);
new->local_df = old->local_df;
new->pkt_type = old->pkt_type;
new->stamp = old->stamp;
......@@ -449,18 +413,19 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
new->nfmark = old->nfmark;
new->nfcache = old->nfcache;
new->nfct = old->nfct;
nf_conntrack_get(new->nfct);
nf_conntrack_get(old->nfct);
#ifdef CONFIG_NETFILTER_DEBUG
new->nf_debug = old->nf_debug;
#endif
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
new->nf_bridge = old->nf_bridge;
nf_bridge_get(new->nf_bridge);
nf_bridge_get(old->nf_bridge);
#endif
#endif
#ifdef CONFIG_NET_SCHED
new->tc_index = old->tc_index;
#endif
atomic_set(&new->users, 1);
}
/**
......
net/ipv4/devinet.c
View file @ 5ec5104a
......@@ -1065,6 +1065,62 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
return ret;
}
static int ipv4_doint_and_flush(ctl_table *ctl, int write,
struct file* filp, void *buffer,
size_t *lenp)
{
int *valp = ctl->data;
int val = *valp;
int ret = proc_dointvec(ctl, write, filp, buffer, lenp);
if (write && *valp != val)
rt_cache_flush(0);
return ret;
}
static int ipv4_doint_and_flush_strategy(ctl_table *table, int *name, int nlen,
void *oldval, size_t *oldlenp,
void *newval, size_t newlen,
void **context)
{
int *valp = table->data;
int new;
if (!newval || !newlen)
return 0;
if (newlen != sizeof(int))
return -EINVAL;
if (get_user(new, (int *)newval))
return -EFAULT;
if (new == *valp)
return 0;
if (oldval && oldlenp) {
size_t len;
if (get_user(len, oldlenp))
return -EFAULT;
if (len) {
if (len > table->maxlen)
len = table->maxlen;
if (copy_to_user(oldval, valp, len))
return -EFAULT;
if (put_user(len, oldlenp))
return -EFAULT;
}
}
*valp = new;
rt_cache_flush(0);
return 1;
}
static struct devinet_sysctl_table {
struct ctl_table_header *sysctl_header;
ctl_table devinet_vars[17];
......@@ -1192,7 +1248,8 @@ static struct devinet_sysctl_table {
.data = &ipv4_devconf.no_xfrm,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler =&proc_dointvec,
.proc_handler = &ipv4_doint_and_flush,
.strategy = &ipv4_doint_and_flush_strategy,
},
{
.ctl_name = NET_IPV4_CONF_NOPOLICY,
......@@ -1200,7 +1257,8 @@ static struct devinet_sysctl_table {
.data = &ipv4_devconf.no_policy,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler =&proc_dointvec,
.proc_handler = &ipv4_doint_and_flush,
.strategy = &ipv4_doint_and_flush_strategy,
},
},
.devinet_dev = {
......
net/ipv4/sysctl_net_ipv4.c
View file @ 5ec5104a
......@@ -77,14 +77,39 @@ static int ipv4_sysctl_forward_strategy(ctl_table *table, int *name, int nlen,
void *newval, size_t newlen,
void **context)
{
int *valp = table->data;
int new;
if (!newval || !newlen)
return 0;
if (newlen != sizeof(int))
return -EINVAL;
if (get_user(new,(int *)newval))
if (get_user(new, (int *)newval))
return -EFAULT;
if (new != ipv4_devconf.forwarding)
if (new == *valp)
return 0;
if (oldval && oldlenp) {
size_t len;
if (get_user(len, oldlenp))
return -EFAULT;
if (len) {
if (len > table->maxlen)
len = table->maxlen;
if (copy_to_user(oldval, valp, len))
return -EFAULT;
if (put_user(len, oldlenp))
return -EFAULT;
}
}
inet_forward_change();
return 0; /* caller does change again and handles handles oldval */
return 1;
}
ctl_table ipv4_table[] = {
......
net/ipv4/tcp_input.c
View file @ 5ec5104a
......@@ -3363,7 +3363,7 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
/*
* Header prediction.
* The code losely follows the one in the famous
* The code loosely follows the one in the famous
* "30 instruction TCP receive" Van Jacobson mail.
*
* Van's trick is to deposit buffers into socket queue
......
net/ipv6/ipv6_syms.c
View file @ 5ec5104a
......@@ -9,6 +9,8 @@
EXPORT_SYMBOL(ipv6_addr_type);
EXPORT_SYMBOL(icmpv6_send);
EXPORT_SYMBOL(icmpv6_statistics);
EXPORT_SYMBOL(icmpv6_err_convert);
EXPORT_SYMBOL(ndisc_mc_map);
EXPORT_SYMBOL(register_inet6addr_notifier);
EXPORT_SYMBOL(unregister_inet6addr_notifier);
......
net/netsyms.c
View file @ 5ec5104a
......@@ -356,13 +356,10 @@ EXPORT_SYMBOL_GPL(xfrm_calg_get_byid);
EXPORT_SYMBOL_GPL(xfrm_aalg_get_byname);
EXPORT_SYMBOL_GPL(xfrm_ealg_get_byname);
EXPORT_SYMBOL_GPL(xfrm_calg_get_byname);
#if defined(CONFIG_INET_AH) || defined(CONFIG_INET_AH_MODULE) || defined(CONFIG_INET6_AH) || defined(CONFIG_INET6_AH_MODULE)
EXPORT_SYMBOL_GPL(skb_ah_walk);
#endif
EXPORT_SYMBOL_GPL(skb_icv_walk);
#if defined(CONFIG_INET_ESP) || defined(CONFIG_INET_ESP_MODULE) || defined(CONFIG_INET6_ESP) || defined(CONFIG_INET6_ESP_MODULE)
EXPORT_SYMBOL_GPL(skb_cow_data);
EXPORT_SYMBOL_GPL(pskb_put);
EXPORT_SYMBOL_GPL(skb_icv_walk);
EXPORT_SYMBOL_GPL(skb_to_sgvec);
#endif
......
net/sched/sch_csz.c
View file @ 5ec5104a
......@@ -56,7 +56,7 @@
CSZ presents a more precise but less flexible and less efficient
approach. As I understand it, the main idea is to create
WFQ flows for each guaranteed service and to allocate
the rest of bandwith to dummy flow-0. Flow-0 comprises
the rest of bandwidth to dummy flow-0. Flow-0 comprises
the predictive services and the best effort traffic;
it is handled by a priority scheduler with the highest
priority band allocated for predictive services, and the rest ---
......
net/socket.c
View file @ 5ec5104a
......@@ -347,17 +347,17 @@ static struct dentry_operations sockfs_dentry_operations = {
/*
* Obtains the first available file descriptor and sets it up for use.
*
* This functions creates file structure and maps it to fd space
* This function creates file structure and maps it to fd space
* of current process. On success it returns file descriptor
* and file struct implicitly stored in sock->file.
* Note that another thread may close file descriptor before we return
* from this function. We use the fact that now we do not refer
* to socket after mapping. If one day we will need it, this
* function will inincrement ref. count on file by 1.
* function will increment ref. count on file by 1.
*
* In any case returned fd MAY BE not valid!
* This race condition is inavoidable
* with shared fd spaces, we cannot solve is inside kernel,
* This race condition is unavoidable
* with shared fd spaces, we cannot solve it inside kernel,
* but we take care of internal coherence yet.
*/
......
net/xfrm/xfrm_algo.c
View file @ 5ec5104a
......@@ -440,83 +440,6 @@ int xfrm_count_enc_supported(void)
return n;
}
#if defined(CONFIG_INET_AH) || defined(CONFIG_INET_AH_MODULE) || defined(CONFIG_INET6_AH) || defined(CONFIG_INET6_AH_MODULE)
void skb_ah_walk(const struct sk_buff *skb,
struct crypto_tfm *tfm, icv_update_fn_t icv_update)
{
int offset = 0;
int len = skb->len;
int start = skb->len - skb->data_len;
int i, copy = start - offset;
struct scatterlist sg;
/* Checksum header. */
if (copy > 0) {
if (copy > len)
copy = len;
sg.page = virt_to_page(skb->data + offset);
sg.offset = (unsigned long)(skb->data + offset) % PAGE_SIZE;
sg.length = copy;
icv_update(tfm, &sg, 1);
if ((len -= copy) == 0)
return;
offset += copy;
}
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
int end;
BUG_TRAP(start <= offset + len);
end = start + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
if (copy > len)
copy = len;
sg.page = frag->page;
sg.offset = frag->page_offset + offset-start;
sg.length = copy;
icv_update(tfm, &sg, 1);
if (!(len -= copy))
return;
offset += copy;
}
start = end;
}
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *list = skb_shinfo(skb)->frag_list;
for (; list; list = list->next) {
int end;
BUG_TRAP(start <= offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
skb_ah_walk(list, tfm, icv_update);
if ((len -= copy) == 0)
return;
offset += copy;
}
start = end;
}
}
if (len)
BUG();
}
#endif
#if defined(CONFIG_INET_ESP) || defined(CONFIG_INET_ESP_MODULE) || defined(CONFIG_INET6_ESP) || defined(CONFIG_INET6_ESP_MODULE)
/* Move to common area: it is shared with AH. */
void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm,
......@@ -591,6 +514,7 @@ void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm,
BUG();
}
#if defined(CONFIG_INET_ESP) || defined(CONFIG_INET_ESP_MODULE) || defined(CONFIG_INET6_ESP) || defined(CONFIG_INET6_ESP_MODULE)
/* Looking generic it is not used in another places. */
......
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