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authorIngo Molnar <mingo@elte.hu>2011-04-14 08:50:37 +0200
committerIngo Molnar <mingo@elte.hu>2011-04-14 08:51:07 +0200
commita4c98f8bbeafee12c979c90743f6fda94f7515c7 (patch)
tree3dda24b8a2ec42ab7b42845cb68c8b6e1b0d501f /arch
parentf4ad9bd208c98f32a6f9136618e0b8bebe3fb370 (diff)
parent85f2e689a5c8fb6ed8fdbee00109e7f6e5fefcb6 (diff)
Merge branch 'linus' into sched/locking
Merge reason: Pick up this upstream commit: 6631e635c65d: block: don't flush plugged IO on forced preemtion scheduling As it modifies the scheduler and we'll queue up dependent patches. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/avr32/include/asm/setup.h9
-rw-r--r--arch/avr32/kernel/setup.c15
-rw-r--r--arch/avr32/kernel/traps.c22
-rw-r--r--arch/avr32/mach-at32ap/clock.c24
-rw-r--r--arch/avr32/mach-at32ap/extint.c22
-rw-r--r--arch/avr32/mach-at32ap/pio.c2
-rw-r--r--arch/avr32/mach-at32ap/pm-at32ap700x.S2
-rw-r--r--arch/m68k/include/asm/unistd.h6
-rw-r--r--arch/m68k/kernel/entry_mm.S4
-rw-r--r--arch/m68k/kernel/syscalltable.S4
-rw-r--r--arch/powerpc/kernel/ibmebus.c6
-rw-r--r--arch/x86/xen/Kconfig1
-rw-r--r--arch/x86/xen/enlighten.c21
-rw-r--r--arch/x86/xen/mmu.c4
14 files changed, 79 insertions, 63 deletions
diff --git a/arch/avr32/include/asm/setup.h b/arch/avr32/include/asm/setup.h
index ff5b7cf6be4..160543dbec7 100644
--- a/arch/avr32/include/asm/setup.h
+++ b/arch/avr32/include/asm/setup.h
@@ -94,6 +94,13 @@ struct tag_ethernet {
#define ETH_INVALID_PHY 0xff
+/* board information */
+#define ATAG_BOARDINFO 0x54410008
+
+struct tag_boardinfo {
+ u32 board_number;
+};
+
struct tag {
struct tag_header hdr;
union {
@@ -102,6 +109,7 @@ struct tag {
struct tag_cmdline cmdline;
struct tag_clock clock;
struct tag_ethernet ethernet;
+ struct tag_boardinfo boardinfo;
} u;
};
@@ -128,6 +136,7 @@ extern struct tag *bootloader_tags;
extern resource_size_t fbmem_start;
extern resource_size_t fbmem_size;
+extern u32 board_number;
void setup_processor(void);
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
index 5c7083916c3..bb0974cce4a 100644
--- a/arch/avr32/kernel/setup.c
+++ b/arch/avr32/kernel/setup.c
@@ -391,6 +391,21 @@ static int __init parse_tag_clock(struct tag *tag)
__tagtable(ATAG_CLOCK, parse_tag_clock);
/*
+ * The board_number correspond to the bd->bi_board_number in U-Boot. This
+ * parameter is only available during initialisation and can be used in some
+ * kind of board identification.
+ */
+u32 __initdata board_number;
+
+static int __init parse_tag_boardinfo(struct tag *tag)
+{
+ board_number = tag->u.boardinfo.board_number;
+
+ return 0;
+}
+__tagtable(ATAG_BOARDINFO, parse_tag_boardinfo);
+
+/*
* Scan the tag table for this tag, and call its parse function. The
* tag table is built by the linker from all the __tagtable
* declarations.
diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c
index b91b2044af9..7aa25756412 100644
--- a/arch/avr32/kernel/traps.c
+++ b/arch/avr32/kernel/traps.c
@@ -95,28 +95,6 @@ void _exception(long signr, struct pt_regs *regs, int code,
info.si_code = code;
info.si_addr = (void __user *)addr;
force_sig_info(signr, &info, current);
-
- /*
- * Init gets no signals that it doesn't have a handler for.
- * That's all very well, but if it has caused a synchronous
- * exception and we ignore the resulting signal, it will just
- * generate the same exception over and over again and we get
- * nowhere. Better to kill it and let the kernel panic.
- */
- if (is_global_init(current)) {
- __sighandler_t handler;
-
- spin_lock_irq(&current->sighand->siglock);
- handler = current->sighand->action[signr-1].sa.sa_handler;
- spin_unlock_irq(&current->sighand->siglock);
- if (handler == SIG_DFL) {
- /* init has generated a synchronous exception
- and it doesn't have a handler for the signal */
- printk(KERN_CRIT "init has generated signal %ld "
- "but has no handler for it\n", signr);
- do_exit(signr);
- }
- }
}
asmlinkage void do_nmi(unsigned long ecr, struct pt_regs *regs)
diff --git a/arch/avr32/mach-at32ap/clock.c b/arch/avr32/mach-at32ap/clock.c
index 442f08c5e64..86925fd6ea5 100644
--- a/arch/avr32/mach-at32ap/clock.c
+++ b/arch/avr32/mach-at32ap/clock.c
@@ -35,22 +35,30 @@ void at32_clk_register(struct clk *clk)
spin_unlock(&clk_list_lock);
}
-struct clk *clk_get(struct device *dev, const char *id)
+static struct clk *__clk_get(struct device *dev, const char *id)
{
struct clk *clk;
- spin_lock(&clk_list_lock);
-
list_for_each_entry(clk, &at32_clock_list, list) {
if (clk->dev == dev && strcmp(id, clk->name) == 0) {
- spin_unlock(&clk_list_lock);
return clk;
}
}
- spin_unlock(&clk_list_lock);
return ERR_PTR(-ENOENT);
}
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+ struct clk *clk;
+
+ spin_lock(&clk_list_lock);
+ clk = __clk_get(dev, id);
+ spin_unlock(&clk_list_lock);
+
+ return clk;
+}
+
EXPORT_SYMBOL(clk_get);
void clk_put(struct clk *clk)
@@ -257,15 +265,15 @@ static int clk_show(struct seq_file *s, void *unused)
spin_lock(&clk_list_lock);
/* show clock tree as derived from the three oscillators */
- clk = clk_get(NULL, "osc32k");
+ clk = __clk_get(NULL, "osc32k");
dump_clock(clk, &r);
clk_put(clk);
- clk = clk_get(NULL, "osc0");
+ clk = __clk_get(NULL, "osc0");
dump_clock(clk, &r);
clk_put(clk);
- clk = clk_get(NULL, "osc1");
+ clk = __clk_get(NULL, "osc1");
dump_clock(clk, &r);
clk_put(clk);
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
index 47ba4b9b6db..fbc2aeaebdd 100644
--- a/arch/avr32/mach-at32ap/extint.c
+++ b/arch/avr32/mach-at32ap/extint.c
@@ -61,34 +61,34 @@ struct eic {
static struct eic *nmi_eic;
static bool nmi_enabled;
-static void eic_ack_irq(struct irq_chip *d)
+static void eic_ack_irq(struct irq_data *d)
{
- struct eic *eic = irq_data_get_irq_chip_data(data);
+ struct eic *eic = irq_data_get_irq_chip_data(d);
eic_writel(eic, ICR, 1 << (d->irq - eic->first_irq));
}
-static void eic_mask_irq(struct irq_chip *d)
+static void eic_mask_irq(struct irq_data *d)
{
- struct eic *eic = irq_data_get_irq_chip_data(data);
+ struct eic *eic = irq_data_get_irq_chip_data(d);
eic_writel(eic, IDR, 1 << (d->irq - eic->first_irq));
}
-static void eic_mask_ack_irq(struct irq_chip *d)
+static void eic_mask_ack_irq(struct irq_data *d)
{
- struct eic *eic = irq_data_get_irq_chip_data(data);
+ struct eic *eic = irq_data_get_irq_chip_data(d);
eic_writel(eic, ICR, 1 << (d->irq - eic->first_irq));
eic_writel(eic, IDR, 1 << (d->irq - eic->first_irq));
}
-static void eic_unmask_irq(struct irq_chip *d)
+static void eic_unmask_irq(struct irq_data *d)
{
- struct eic *eic = irq_data_get_irq_chip_data(data);
+ struct eic *eic = irq_data_get_irq_chip_data(d);
eic_writel(eic, IER, 1 << (d->irq - eic->first_irq));
}
-static int eic_set_irq_type(struct irq_chip *d, unsigned int flow_type)
+static int eic_set_irq_type(struct irq_data *d, unsigned int flow_type)
{
- struct eic *eic = irq_data_get_irq_chip_data(data);
+ struct eic *eic = irq_data_get_irq_chip_data(d);
unsigned int irq = d->irq;
unsigned int i = irq - eic->first_irq;
u32 mode, edge, level;
@@ -191,7 +191,7 @@ static int __init eic_probe(struct platform_device *pdev)
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
int_irq = platform_get_irq(pdev, 0);
- if (!regs || !int_irq) {
+ if (!regs || (int)int_irq <= 0) {
dev_dbg(&pdev->dev, "missing regs and/or irq resource\n");
return -ENXIO;
}
diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
index f308e1ddc62..2e0aa853a4b 100644
--- a/arch/avr32/mach-at32ap/pio.c
+++ b/arch/avr32/mach-at32ap/pio.c
@@ -257,7 +257,7 @@ static void gpio_irq_mask(struct irq_data *d)
pio_writel(pio, IDR, 1 << (gpio & 0x1f));
}
-static void gpio_irq_unmask(struct irq_data *d))
+static void gpio_irq_unmask(struct irq_data *d)
{
unsigned gpio = irq_to_gpio(d->irq);
struct pio_device *pio = &pio_dev[gpio >> 5];
diff --git a/arch/avr32/mach-at32ap/pm-at32ap700x.S b/arch/avr32/mach-at32ap/pm-at32ap700x.S
index 17503b0ed6c..f868f4ce761 100644
--- a/arch/avr32/mach-at32ap/pm-at32ap700x.S
+++ b/arch/avr32/mach-at32ap/pm-at32ap700x.S
@@ -53,7 +53,7 @@ cpu_enter_idle:
st.w r8[TI_flags], r9
unmask_interrupts
sleep CPU_SLEEP_IDLE
- .size cpu_idle_sleep, . - cpu_idle_sleep
+ .size cpu_enter_idle, . - cpu_enter_idle
/*
* Common return path for PM functions that don't run from
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 26d851d385b..29e17907d9f 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -343,10 +343,14 @@
#define __NR_fanotify_init 337
#define __NR_fanotify_mark 338
#define __NR_prlimit64 339
+#define __NR_name_to_handle_at 340
+#define __NR_open_by_handle_at 341
+#define __NR_clock_adjtime 342
+#define __NR_syncfs 343
#ifdef __KERNEL__
-#define NR_syscalls 340
+#define NR_syscalls 344
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
diff --git a/arch/m68k/kernel/entry_mm.S b/arch/m68k/kernel/entry_mm.S
index 1559dea36e5..1359ee65957 100644
--- a/arch/m68k/kernel/entry_mm.S
+++ b/arch/m68k/kernel/entry_mm.S
@@ -750,4 +750,8 @@ sys_call_table:
.long sys_fanotify_init
.long sys_fanotify_mark
.long sys_prlimit64
+ .long sys_name_to_handle_at /* 340 */
+ .long sys_open_by_handle_at
+ .long sys_clock_adjtime
+ .long sys_syncfs
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index 79b1ed198c0..9b8393d8adb 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -358,6 +358,10 @@ ENTRY(sys_call_table)
.long sys_fanotify_init
.long sys_fanotify_mark
.long sys_prlimit64
+ .long sys_name_to_handle_at /* 340 */
+ .long sys_open_by_handle_at
+ .long sys_clock_adjtime
+ .long sys_syncfs
.rept NR_syscalls-(.-sys_call_table)/4
.long sys_ni_syscall
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index c00d4ca1ee1..28581f1ad2c 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -527,7 +527,7 @@ static int ibmebus_bus_pm_resume_noirq(struct device *dev)
#endif /* !CONFIG_SUSPEND */
-#ifdef CONFIG_HIBERNATION
+#ifdef CONFIG_HIBERNATE_CALLBACKS
static int ibmebus_bus_pm_freeze(struct device *dev)
{
@@ -665,7 +665,7 @@ static int ibmebus_bus_pm_restore_noirq(struct device *dev)
return ret;
}
-#else /* !CONFIG_HIBERNATION */
+#else /* !CONFIG_HIBERNATE_CALLBACKS */
#define ibmebus_bus_pm_freeze NULL
#define ibmebus_bus_pm_thaw NULL
@@ -676,7 +676,7 @@ static int ibmebus_bus_pm_restore_noirq(struct device *dev)
#define ibmebus_bus_pm_poweroff_noirq NULL
#define ibmebus_bus_pm_restore_noirq NULL
-#endif /* !CONFIG_HIBERNATION */
+#endif /* !CONFIG_HIBERNATE_CALLBACKS */
static struct dev_pm_ops ibmebus_bus_dev_pm_ops = {
.prepare = ibmebus_bus_pm_prepare,
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 1c7121ba18f..5cc821cb2e0 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -39,6 +39,7 @@ config XEN_MAX_DOMAIN_MEMORY
config XEN_SAVE_RESTORE
bool
depends on XEN
+ select HIBERNATE_CALLBACKS
default y
config XEN_DEBUG_FS
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 49dbd78ec3c..e3c6a06cf72 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -238,6 +238,7 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx,
static __init void xen_init_cpuid_mask(void)
{
unsigned int ax, bx, cx, dx;
+ unsigned int xsave_mask;
cpuid_leaf1_edx_mask =
~((1 << X86_FEATURE_MCE) | /* disable MCE */
@@ -249,24 +250,16 @@ static __init void xen_init_cpuid_mask(void)
cpuid_leaf1_edx_mask &=
~((1 << X86_FEATURE_APIC) | /* disable local APIC */
(1 << X86_FEATURE_ACPI)); /* disable ACPI */
-
ax = 1;
- cx = 0;
xen_cpuid(&ax, &bx, &cx, &dx);
- /* cpuid claims we support xsave; try enabling it to see what happens */
- if (cx & (1 << (X86_FEATURE_XSAVE % 32))) {
- unsigned long cr4;
-
- set_in_cr4(X86_CR4_OSXSAVE);
-
- cr4 = read_cr4();
+ xsave_mask =
+ (1 << (X86_FEATURE_XSAVE % 32)) |
+ (1 << (X86_FEATURE_OSXSAVE % 32));
- if ((cr4 & X86_CR4_OSXSAVE) == 0)
- cpuid_leaf1_ecx_mask &= ~(1 << (X86_FEATURE_XSAVE % 32));
-
- clear_in_cr4(X86_CR4_OSXSAVE);
- }
+ /* Xen will set CR4.OSXSAVE if supported and not disabled by force */
+ if ((cx & xsave_mask) != xsave_mask)
+ cpuid_leaf1_ecx_mask &= ~xsave_mask; /* disable XSAVE & OSXSAVE */
}
static void xen_set_debugreg(int reg, unsigned long val)
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index c82df6c9c0f..a991b57f91f 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -565,13 +565,13 @@ pte_t xen_make_pte_debug(pteval_t pte)
if (io_page &&
(xen_initial_domain() || addr >= ISA_END_ADDRESS)) {
other_addr = pfn_to_mfn(addr >> PAGE_SHIFT) << PAGE_SHIFT;
- WARN(addr != other_addr,
+ WARN_ONCE(addr != other_addr,
"0x%lx is using VM_IO, but it is 0x%lx!\n",
(unsigned long)addr, (unsigned long)other_addr);
} else {
pteval_t iomap_set = (_pte.pte & PTE_FLAGS_MASK) & _PAGE_IOMAP;
other_addr = (_pte.pte & PTE_PFN_MASK);
- WARN((addr == other_addr) && (!io_page) && (!iomap_set),
+ WARN_ONCE((addr == other_addr) && (!io_page) && (!iomap_set),
"0x%lx is missing VM_IO (and wasn't fixed)!\n",
(unsigned long)addr);
}