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yaml
---
r: 145190
b: refs/heads/master
c: b674137
h: refs/heads/master
v: v3
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Benjamin Herrenschmidt authored and Jesse Barnes committed May 19, 2009
1 parent 5258563 commit c79fc00
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Showing 80 changed files with 309 additions and 424 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: a9523f45264aee8ec8d9f82091a0dfe1418fb2f8
refs/heads/master: b674137755bbe2750f997a2a1264db3cdf8abcb3
15 changes: 3 additions & 12 deletions trunk/Documentation/networking/ip-sysctl.txt
Original file line number Diff line number Diff line change
Expand Up @@ -1266,22 +1266,13 @@ sctp_rmem - vector of 3 INTEGERs: min, default, max
sctp_wmem - vector of 3 INTEGERs: min, default, max
See tcp_wmem for a description.

UNDOCUMENTED:

/proc/sys/net/core/*
dev_weight - INTEGER
The maximum number of packets that kernel can handle on a NAPI
interrupt, it's a Per-CPU variable.

Default: 64
dev_weight FIXME

/proc/sys/net/unix/*
max_dgram_qlen - INTEGER
The maximum length of dgram socket receive queue

Default: 10


UNDOCUMENTED:
max_dgram_qlen FIXME

/proc/sys/net/irda/*
fast_poll_increase FIXME
Expand Down
6 changes: 3 additions & 3 deletions trunk/arch/arm/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -273,7 +273,6 @@ config ARCH_EP93XX
select HAVE_CLK
select COMMON_CLKDEV
select ARCH_REQUIRE_GPIOLIB
select ARCH_HAS_HOLES_MEMORYMODEL
help
This enables support for the Cirrus EP93xx series of CPUs.

Expand Down Expand Up @@ -977,9 +976,10 @@ config OABI_COMPAT
UNPREDICTABLE (in fact it can be predicted that it won't work
at all). If in doubt say Y.

config ARCH_HAS_HOLES_MEMORYMODEL
config ARCH_FLATMEM_HAS_HOLES
bool
default n
default y
depends on FLATMEM

# Discontigmem is deprecated
config ARCH_DISCONTIGMEM_ENABLE
Expand Down
4 changes: 2 additions & 2 deletions trunk/arch/arm/common/gic.c
Original file line number Diff line number Diff line change
Expand Up @@ -253,9 +253,9 @@ void __cpuinit gic_cpu_init(unsigned int gic_nr, void __iomem *base)
}

#ifdef CONFIG_SMP
void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
void gic_raise_softirq(cpumask_t cpumask, unsigned int irq)
{
unsigned long map = *cpus_addr(*mask);
unsigned long map = *cpus_addr(cpumask);

/* this always happens on GIC0 */
writel(map << 16 | irq, gic_data[0].dist_base + GIC_DIST_SOFTINT);
Expand Down
2 changes: 1 addition & 1 deletion trunk/arch/arm/include/asm/hardware/gic.h
Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,7 @@
void gic_dist_init(unsigned int gic_nr, void __iomem *base, unsigned int irq_start);
void gic_cpu_init(unsigned int gic_nr, void __iomem *base);
void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
void gic_raise_softirq(const struct cpumask *mask, unsigned int irq);
void gic_raise_softirq(cpumask_t cpumask, unsigned int irq);
#endif

#endif
12 changes: 8 additions & 4 deletions trunk/arch/arm/include/asm/smp.h
Original file line number Diff line number Diff line change
Expand Up @@ -53,12 +53,17 @@ extern void smp_store_cpu_info(unsigned int cpuid);
/*
* Raise an IPI cross call on CPUs in callmap.
*/
extern void smp_cross_call(const struct cpumask *mask);
extern void smp_cross_call(cpumask_t callmap);

/*
* Broadcast a timer interrupt to the other CPUs.
*/
extern void smp_send_timer(void);

/*
* Broadcast a clock event to other CPUs.
*/
extern void smp_timer_broadcast(const struct cpumask *mask);
extern void smp_timer_broadcast(cpumask_t mask);

/*
* Boot a secondary CPU, and assign it the specified idle task.
Expand Down Expand Up @@ -97,8 +102,7 @@ extern int platform_cpu_kill(unsigned int cpu);
extern void platform_cpu_enable(unsigned int cpu);

extern void arch_send_call_function_single_ipi(int cpu);
extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask
extern void arch_send_call_function_ipi(cpumask_t mask);

/*
* Local timer interrupt handling function (can be IPI'ed).
Expand Down
46 changes: 30 additions & 16 deletions trunk/arch/arm/kernel/smp.c
Original file line number Diff line number Diff line change
Expand Up @@ -326,14 +326,14 @@ void __init smp_prepare_boot_cpu(void)
per_cpu(cpu_data, cpu).idle = current;
}

static void send_ipi_message(const struct cpumask *mask, enum ipi_msg_type msg)
static void send_ipi_message(cpumask_t callmap, enum ipi_msg_type msg)
{
unsigned long flags;
unsigned int cpu;

local_irq_save(flags);

for_each_cpu(cpu, mask) {
for_each_cpu_mask(cpu, callmap) {
struct ipi_data *ipi = &per_cpu(ipi_data, cpu);

spin_lock(&ipi->lock);
Expand All @@ -344,19 +344,19 @@ static void send_ipi_message(const struct cpumask *mask, enum ipi_msg_type msg)
/*
* Call the platform specific cross-CPU call function.
*/
smp_cross_call(mask);
smp_cross_call(callmap);

local_irq_restore(flags);
}

void arch_send_call_function_ipi_mask(const struct cpumask *mask)
void arch_send_call_function_ipi(cpumask_t mask)
{
send_ipi_message(mask, IPI_CALL_FUNC);
}

void arch_send_call_function_single_ipi(int cpu)
{
send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
send_ipi_message(cpumask_of_cpu(cpu), IPI_CALL_FUNC_SINGLE);
}

void show_ipi_list(struct seq_file *p)
Expand Down Expand Up @@ -498,10 +498,17 @@ asmlinkage void __exception do_IPI(struct pt_regs *regs)

void smp_send_reschedule(int cpu)
{
send_ipi_message(cpumask_of(cpu), IPI_RESCHEDULE);
send_ipi_message(cpumask_of_cpu(cpu), IPI_RESCHEDULE);
}

void smp_timer_broadcast(const struct cpumask *mask)
void smp_send_timer(void)
{
cpumask_t mask = cpu_online_map;
cpu_clear(smp_processor_id(), mask);
send_ipi_message(mask, IPI_TIMER);
}

void smp_timer_broadcast(cpumask_t mask)
{
send_ipi_message(mask, IPI_TIMER);
}
Expand All @@ -510,7 +517,7 @@ void smp_send_stop(void)
{
cpumask_t mask = cpu_online_map;
cpu_clear(smp_processor_id(), mask);
send_ipi_message(&mask, IPI_CPU_STOP);
send_ipi_message(mask, IPI_CPU_STOP);
}

/*
Expand All @@ -521,17 +528,20 @@ int setup_profiling_timer(unsigned int multiplier)
return -EINVAL;
}

static void
on_each_cpu_mask(void (*func)(void *), void *info, int wait,
const struct cpumask *mask)
static int
on_each_cpu_mask(void (*func)(void *), void *info, int wait, cpumask_t mask)
{
int ret = 0;

preempt_disable();

smp_call_function_many(mask, func, info, wait);
if (cpumask_test_cpu(smp_processor_id(), mask))
ret = smp_call_function_mask(mask, func, info, wait);
if (cpu_isset(smp_processor_id(), mask))
func(info);

preempt_enable();

return ret;
}

/**********************************************************************/
Expand Down Expand Up @@ -592,17 +602,20 @@ void flush_tlb_all(void)

void flush_tlb_mm(struct mm_struct *mm)
{
on_each_cpu_mask(ipi_flush_tlb_mm, mm, 1, &mm->cpu_vm_mask);
cpumask_t mask = mm->cpu_vm_mask;

on_each_cpu_mask(ipi_flush_tlb_mm, mm, 1, mask);
}

void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
{
cpumask_t mask = vma->vm_mm->cpu_vm_mask;
struct tlb_args ta;

ta.ta_vma = vma;
ta.ta_start = uaddr;

on_each_cpu_mask(ipi_flush_tlb_page, &ta, 1, &vma->vm_mm->cpu_vm_mask);
on_each_cpu_mask(ipi_flush_tlb_page, &ta, 1, mask);
}

void flush_tlb_kernel_page(unsigned long kaddr)
Expand All @@ -617,13 +630,14 @@ void flush_tlb_kernel_page(unsigned long kaddr)
void flush_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
cpumask_t mask = vma->vm_mm->cpu_vm_mask;
struct tlb_args ta;

ta.ta_vma = vma;
ta.ta_start = start;
ta.ta_end = end;

on_each_cpu_mask(ipi_flush_tlb_range, &ta, 1, &vma->vm_mm->cpu_vm_mask);
on_each_cpu_mask(ipi_flush_tlb_range, &ta, 1, mask);
}

void flush_tlb_kernel_range(unsigned long start, unsigned long end)
Expand Down
69 changes: 8 additions & 61 deletions trunk/arch/arm/mach-ep93xx/clock.c
Original file line number Diff line number Diff line change
Expand Up @@ -21,50 +21,15 @@
#include <asm/div64.h>
#include <mach/hardware.h>


/*
* The EP93xx has two external crystal oscillators. To generate the
* required high-frequency clocks, the processor uses two phase-locked-
* loops (PLLs) to multiply the incoming external clock signal to much
* higher frequencies that are then divided down by programmable dividers
* to produce the needed clocks. The PLLs operate independently of one
* another.
*/
#define EP93XX_EXT_CLK_RATE 14745600
#define EP93XX_EXT_RTC_RATE 32768


struct clk {
unsigned long rate;
int users;
int sw_locked;
u32 enable_reg;
u32 enable_mask;

unsigned long (*get_rate)(struct clk *clk);
};


static unsigned long get_uart_rate(struct clk *clk);


static struct clk clk_uart1 = {
.sw_locked = 1,
.enable_reg = EP93XX_SYSCON_DEVICE_CONFIG,
.enable_mask = EP93XX_SYSCON_DEVICE_CONFIG_U1EN,
.get_rate = get_uart_rate,
};
static struct clk clk_uart2 = {
.sw_locked = 1,
.enable_reg = EP93XX_SYSCON_DEVICE_CONFIG,
.enable_mask = EP93XX_SYSCON_DEVICE_CONFIG_U2EN,
.get_rate = get_uart_rate,
};
static struct clk clk_uart3 = {
.sw_locked = 1,
.enable_reg = EP93XX_SYSCON_DEVICE_CONFIG,
.enable_mask = EP93XX_SYSCON_DEVICE_CONFIG_U3EN,
.get_rate = get_uart_rate,
static struct clk clk_uart = {
.rate = 14745600,
};
static struct clk clk_pll1;
static struct clk clk_f;
Expand Down Expand Up @@ -130,9 +95,9 @@ static struct clk clk_m2m1 = {
{ .dev_id = dev, .con_id = con, .clk = ck }

static struct clk_lookup clocks[] = {
INIT_CK("apb:uart1", NULL, &clk_uart1),
INIT_CK("apb:uart2", NULL, &clk_uart2),
INIT_CK("apb:uart3", NULL, &clk_uart3),
INIT_CK("apb:uart1", NULL, &clk_uart),
INIT_CK("apb:uart2", NULL, &clk_uart),
INIT_CK("apb:uart3", NULL, &clk_uart),
INIT_CK(NULL, "pll1", &clk_pll1),
INIT_CK(NULL, "fclk", &clk_f),
INIT_CK(NULL, "hclk", &clk_h),
Expand Down Expand Up @@ -160,8 +125,6 @@ int clk_enable(struct clk *clk)
u32 value;

value = __raw_readl(clk->enable_reg);
if (clk->sw_locked)
__raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
__raw_writel(value | clk->enable_mask, clk->enable_reg);
}

Expand All @@ -175,29 +138,13 @@ void clk_disable(struct clk *clk)
u32 value;

value = __raw_readl(clk->enable_reg);
if (clk->sw_locked)
__raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
__raw_writel(value & ~clk->enable_mask, clk->enable_reg);
}
}
EXPORT_SYMBOL(clk_disable);

static unsigned long get_uart_rate(struct clk *clk)
{
u32 value;

value = __raw_readl(EP93XX_SYSCON_CLOCK_CONTROL);
if (value & EP93XX_SYSCON_CLOCK_UARTBAUD)
return EP93XX_EXT_CLK_RATE;
else
return EP93XX_EXT_CLK_RATE / 2;
}

unsigned long clk_get_rate(struct clk *clk)
{
if (clk->get_rate)
return clk->get_rate(clk);

return clk->rate;
}
EXPORT_SYMBOL(clk_get_rate);
Expand All @@ -215,7 +162,7 @@ static unsigned long calc_pll_rate(u32 config_word)
unsigned long long rate;
int i;

rate = EP93XX_EXT_CLK_RATE;
rate = 14745600;
rate *= ((config_word >> 11) & 0x1f) + 1; /* X1FBD */
rate *= ((config_word >> 5) & 0x3f) + 1; /* X2FBD */
do_div(rate, (config_word & 0x1f) + 1); /* X2IPD */
Expand Down Expand Up @@ -248,7 +195,7 @@ static int __init ep93xx_clock_init(void)

value = __raw_readl(EP93XX_SYSCON_CLOCK_SET1);
if (!(value & 0x00800000)) { /* PLL1 bypassed? */
clk_pll1.rate = EP93XX_EXT_CLK_RATE;
clk_pll1.rate = 14745600;
} else {
clk_pll1.rate = calc_pll_rate(value);
}
Expand All @@ -259,7 +206,7 @@ static int __init ep93xx_clock_init(void)

value = __raw_readl(EP93XX_SYSCON_CLOCK_SET2);
if (!(value & 0x00080000)) { /* PLL2 bypassed? */
clk_pll2.rate = EP93XX_EXT_CLK_RATE;
clk_pll2.rate = 14745600;
} else if (value & 0x00040000) { /* PLL2 enabled? */
clk_pll2.rate = calc_pll_rate(value);
} else {
Expand Down
5 changes: 1 addition & 4 deletions trunk/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
Original file line number Diff line number Diff line change
Expand Up @@ -159,10 +159,7 @@
#define EP93XX_SYSCON_CLOCK_SET1 EP93XX_SYSCON_REG(0x20)
#define EP93XX_SYSCON_CLOCK_SET2 EP93XX_SYSCON_REG(0x24)
#define EP93XX_SYSCON_DEVICE_CONFIG EP93XX_SYSCON_REG(0x80)
#define EP93XX_SYSCON_DEVICE_CONFIG_U3EN (1<<24)
#define EP93XX_SYSCON_DEVICE_CONFIG_CRUNCH_ENABLE (1<<23)
#define EP93XX_SYSCON_DEVICE_CONFIG_U2EN (1<<20)
#define EP93XX_SYSCON_DEVICE_CONFIG_U1EN (1<<18)
#define EP93XX_SYSCON_DEVICE_CONFIG_CRUNCH_ENABLE 0x00800000
#define EP93XX_SYSCON_SWLOCK EP93XX_SYSCON_REG(0xc0)

#define EP93XX_WATCHDOG_BASE (EP93XX_APB_VIRT_BASE + 0x00140000)
Expand Down
2 changes: 1 addition & 1 deletion trunk/arch/arm/mach-integrator/core.c
Original file line number Diff line number Diff line change
Expand Up @@ -121,7 +121,7 @@ static struct clk uartclk = {
.rate = 14745600,
};

static struct clk_lookup lookups[] = {
static struct clk_lookup lookups[] __initdata = {
{ /* UART0 */
.dev_id = "mb:16",
.clk = &uartclk,
Expand Down
2 changes: 1 addition & 1 deletion trunk/arch/arm/mach-l7200/include/mach/sys-clock.h
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@

/* IO_START and IO_BASE are defined in hardware.h */

#define SYS_CLOCK_START (IO_START + SYS_CLOCK_OFF) /* Physical address */
#define SYS_CLOCK_START (IO_START + SYS_CLCOK_OFF) /* Physical address */
#define SYS_CLOCK_BASE (IO_BASE + SYS_CLOCK_OFF) /* Virtual address */

/* Define the interface to the SYS_CLOCK */
Expand Down
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