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authorSascha Hauer <s.hauer@pengutronix.de>2011-08-08 08:22:41 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2011-08-08 08:22:41 +0200
commit1a43f2012455a977397deffe35912fd3f3ce17b9 (patch)
tree5189f337df44e7a495fbd097cd476b0380babd8c /arch/mips
parentARM: iMX5: Don't enable DPLL if it already enabled (diff)
parentLinux 3.1-rc1 (diff)
downloadlinux-1a43f2012455a977397deffe35912fd3f3ce17b9.tar.xz
linux-1a43f2012455a977397deffe35912fd3f3ce17b9.zip
Merge commit 'v3.1-rc1' into imx-fixes
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/Kbuild.platforms1
-rw-r--r--arch/mips/Kconfig20
-rw-r--r--arch/mips/Makefile12
-rw-r--r--arch/mips/ar7/clock.c2
-rw-r--r--arch/mips/ar7/platform.c2
-rw-r--r--arch/mips/ar7/prom.c2
-rw-r--r--arch/mips/bcm47xx/setup.c2
-rw-r--r--arch/mips/cobalt/time.c2
-rw-r--r--arch/mips/include/asm/atomic.h17
-rw-r--r--arch/mips/include/asm/fixmap.h10
-rw-r--r--arch/mips/include/asm/floppy.h2
-rw-r--r--arch/mips/include/asm/gt64120.h2
-rw-r--r--arch/mips/include/asm/hw_irq.h2
-rw-r--r--arch/mips/include/asm/i8253.h24
-rw-r--r--arch/mips/include/asm/irq.h1
-rw-r--r--arch/mips/include/asm/local.h2
-rw-r--r--arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h1
-rw-r--r--arch/mips/include/asm/mach-bcm63xx/spaces.h17
-rw-r--r--arch/mips/include/asm/mach-generic/dma-coherence.h1
-rw-r--r--arch/mips/include/asm/mach-generic/spaces.h4
-rw-r--r--arch/mips/include/asm/mach-ip27/dma-coherence.h1
-rw-r--r--arch/mips/include/asm/mach-jazz/dma-coherence.h1
-rw-r--r--arch/mips/include/asm/mach-jz4740/gpio.h5
-rw-r--r--arch/mips/include/asm/mach-loongson/dma-coherence.h1
-rw-r--r--arch/mips/include/asm/mach-malta/cpu-feature-overrides.h2
-rw-r--r--arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h2
-rw-r--r--arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h59
-rw-r--r--arch/mips/include/asm/mach-powertv/dma-coherence.h1
-rw-r--r--arch/mips/include/asm/mach-tx39xx/spaces.h17
-rw-r--r--arch/mips/include/asm/mach-tx49xx/spaces.h17
-rw-r--r--arch/mips/include/asm/pgtable.h1
-rw-r--r--arch/mips/include/asm/smp-ops.h43
-rw-r--r--arch/mips/include/asm/smp.h2
-rw-r--r--arch/mips/include/asm/smtc.h1
-rw-r--r--arch/mips/include/asm/stacktrace.h4
-rw-r--r--arch/mips/include/asm/uasm.h2
-rw-r--r--arch/mips/include/asm/unistd.h21
-rw-r--r--arch/mips/jazz/irq.c2
-rw-r--r--arch/mips/kernel/cpu-probe.c1
-rw-r--r--arch/mips/kernel/i8253.c102
-rw-r--r--arch/mips/kernel/irq.c2
-rw-r--r--arch/mips/kernel/irq_cpu.c14
-rw-r--r--arch/mips/kernel/mips-mt.c2
-rw-r--r--arch/mips/kernel/module.c20
-rw-r--r--arch/mips/kernel/perf_event.c4
-rw-r--r--arch/mips/kernel/perf_event_mipsxx.c28
-rw-r--r--arch/mips/kernel/process.c20
-rw-r--r--arch/mips/kernel/rtlx.c2
-rw-r--r--arch/mips/kernel/scall32-o32.S1
-rw-r--r--arch/mips/kernel/scall64-64.S1
-rw-r--r--arch/mips/kernel/scall64-n32.S1
-rw-r--r--arch/mips/kernel/scall64-o32.S1
-rw-r--r--arch/mips/kernel/smp-cmp.c2
-rw-r--r--arch/mips/kernel/smp-mt.c2
-rw-r--r--arch/mips/kernel/smp.c2
-rw-r--r--arch/mips/kernel/smtc-proc.c2
-rw-r--r--arch/mips/kernel/smtc.c2
-rw-r--r--arch/mips/kernel/sync-r4k.c2
-rw-r--r--arch/mips/kernel/traps.c8
-rw-r--r--arch/mips/kernel/unaligned.c5
-rw-r--r--arch/mips/kernel/vpe.c2
-rw-r--r--arch/mips/lantiq/clk.c13
-rw-r--r--arch/mips/lantiq/devices.c2
-rw-r--r--arch/mips/lantiq/xway/devices.c2
-rw-r--r--arch/mips/loongson/lemote-2f/ec_kb3310b.c2
-rw-r--r--arch/mips/math-emu/cp1emu.c3
-rw-r--r--arch/mips/mipssim/sim_setup.c18
-rw-r--r--arch/mips/mipssim/sim_smtc.c2
-rw-r--r--arch/mips/mm/c-r4k.c4
-rw-r--r--arch/mips/mm/dma-default.c114
-rw-r--r--arch/mips/mm/fault.c8
-rw-r--r--arch/mips/mm/init.c8
-rw-r--r--arch/mips/mm/mmap.c193
-rw-r--r--arch/mips/mm/pgtable-32.c2
-rw-r--r--arch/mips/mm/pgtable-64.c2
-rw-r--r--arch/mips/mm/tlbex.c292
-rw-r--r--arch/mips/mti-malta/malta-init.c14
-rw-r--r--arch/mips/mti-malta/malta-smtc.c2
-rw-r--r--arch/mips/mti-malta/malta-time.c2
-rw-r--r--arch/mips/netlogic/Platform11
-rw-r--r--arch/mips/netlogic/xlr/irq.c2
-rw-r--r--arch/mips/netlogic/xlr/smp.c13
-rw-r--r--arch/mips/nxp/pnx8550/common/setup.c2
-rw-r--r--arch/mips/oprofile/Makefile2
-rw-r--r--arch/mips/oprofile/backtrace.c175
-rw-r--r--arch/mips/oprofile/common.c1
-rw-r--r--arch/mips/oprofile/op_impl.h2
-rw-r--r--arch/mips/pci/ops-nile4.c1
-rw-r--r--arch/mips/pci/pci-rc32434.c2
-rw-r--r--arch/mips/pci/pci-vr41xx.c2
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_setup.c8
-rw-r--r--arch/mips/pnx8550/common/setup.c2
-rw-r--r--arch/mips/powertv/asic/asic_devices.c10
-rw-r--r--arch/mips/rb532/devices.c24
-rw-r--r--arch/mips/sgi-ip22/ip22-time.c2
-rw-r--r--arch/mips/sgi-ip27/ip27-nmi.c2
-rw-r--r--arch/mips/sibyte/sb1250/irq.c8
-rw-r--r--arch/mips/sni/time.c2
98 files changed, 975 insertions, 513 deletions
diff --git a/arch/mips/Kbuild.platforms b/arch/mips/Kbuild.platforms
index aef6c917b45a..5ce8029f558b 100644
--- a/arch/mips/Kbuild.platforms
+++ b/arch/mips/Kbuild.platforms
@@ -16,6 +16,7 @@ platforms += lasat
platforms += loongson
platforms += mipssim
platforms += mti-malta
+platforms += netlogic
platforms += pmc-sierra
platforms += pnx833x
platforms += pnx8550
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 653da62d0682..177cdaf83564 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -185,6 +185,7 @@ config MACH_JAZZ
select CSRC_R4K
select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
select GENERIC_ISA_DMA
+ select HAVE_PCSPKR_PLATFORM
select IRQ_CPU
select I8253
select I8259
@@ -266,6 +267,7 @@ config MIPS_MALTA
select CSRC_R4K
select DMA_NONCOHERENT
select GENERIC_ISA_DMA
+ select HAVE_PCSPKR_PLATFORM
select IRQ_CPU
select IRQ_GIC
select HW_HAS_PCI
@@ -640,6 +642,7 @@ config SNI_RM
select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
select DMA_NONCOHERENT
select GENERIC_ISA_DMA
+ select HAVE_PCSPKR_PLATFORM
select HW_HAS_EISA
select HW_HAS_PCI
select IRQ_CPU
@@ -2388,6 +2391,7 @@ config MMU
config I8253
bool
select CLKSRC_I8253
+ select CLKEVT_I8253
select MIPS_EXTERNAL_TIMER
config ZONE_DMA32
@@ -2489,20 +2493,4 @@ source "security/Kconfig"
source "crypto/Kconfig"
-menuconfig VIRTUALIZATION
- bool "Virtualization"
- default n
- ---help---
- Say Y here to get to see options for using your Linux host to run other
- operating systems inside virtual machines (guests).
- This option alone does not add any kernel code.
-
- If you say N, all options in this submenu will be skipped and disabled.
-
-if VIRTUALIZATION
-
-source drivers/virtio/Kconfig
-
-endif # VIRTUALIZATION
-
source "lib/Kconfig"
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 884819cd0607..53e3514ba10e 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -191,18 +191,6 @@ endif
#
include $(srctree)/arch/mips/Kbuild.platforms
-#
-# NETLOGIC SOC Common (common)
-#
-cflags-$(CONFIG_NLM_COMMON) += -I$(srctree)/arch/mips/include/asm/mach-netlogic
-cflags-$(CONFIG_NLM_COMMON) += -I$(srctree)/arch/mips/include/asm/netlogic
-
-#
-# NETLOGIC XLR/XLS SoC, Simulator and boards
-#
-core-$(CONFIG_NLM_XLR) += arch/mips/netlogic/xlr/
-load-$(CONFIG_NLM_XLR_BOARD) += 0xffffffff84000000
-
cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
drivers-$(CONFIG_PCI) += arch/mips/pci/
diff --git a/arch/mips/ar7/clock.c b/arch/mips/ar7/clock.c
index 2ca4ada1c291..2460f9d23f1b 100644
--- a/arch/mips/ar7/clock.c
+++ b/arch/mips/ar7/clock.c
@@ -443,7 +443,7 @@ struct clk *clk_get(struct device *dev, const char *id)
return &vbus_clk;
if (!strcmp(id, "cpu"))
return &cpu_clk;
- if (!strcmp(id, "dsp"));
+ if (!strcmp(id, "dsp"))
return &dsp_clk;
if (!strcmp(id, "vbus"))
return &vbus_clk;
diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c
index 7d2fab392327..33ffecf6a6d6 100644
--- a/arch/mips/ar7/platform.c
+++ b/arch/mips/ar7/platform.c
@@ -229,7 +229,7 @@ static struct resource cpmac_low_res[] = {
.name = "irq",
.flags = IORESOURCE_IRQ,
.start = 27,
- .end = 27,
+ .end = 27,
},
};
diff --git a/arch/mips/ar7/prom.c b/arch/mips/ar7/prom.c
index 23818d299127..8088c6fdb83e 100644
--- a/arch/mips/ar7/prom.c
+++ b/arch/mips/ar7/prom.c
@@ -77,7 +77,7 @@ struct psp_env_chunk {
u16 csum;
u8 len;
char data[11];
-} __attribute__ ((packed));
+} __packed;
struct psp_var_map_entry {
u8 num;
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index 73b529b57433..cfae81571ded 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -1,7 +1,7 @@
/*
* Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
- * Copyright (C) 2006 Michael Buesch <mb@bu3sch.de>
+ * Copyright (C) 2006 Michael Buesch <m@bues.ch>
* Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org>
* Copyright (C) 2010-2011 Hauke Mehrtens <hauke@hauke-m.de>
*
diff --git a/arch/mips/cobalt/time.c b/arch/mips/cobalt/time.c
index 0162f9edc693..3bff3b820baf 100644
--- a/arch/mips/cobalt/time.c
+++ b/arch/mips/cobalt/time.c
@@ -17,10 +17,10 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <linux/i8253.h>
#include <linux/init.h>
#include <asm/gt64120.h>
-#include <asm/i8253.h>
#include <asm/time.h>
#define GT641XX_BASE_CLOCK 50000000 /* 50MHz */
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 4a02fe891ab6..1d93f81d57e7 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -303,15 +303,15 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
#define atomic_xchg(v, new) (xchg(&((v)->counter), (new)))
/**
- * atomic_add_unless - add unless the number is a given value
+ * __atomic_add_unless - add unless the number is a given value
* @v: pointer of type atomic_t
* @a: the amount to add to v...
* @u: ...unless v is equal to u.
*
* Atomically adds @a to @v, so long as it was not @u.
- * Returns non-zero if @v was not @u, and zero otherwise.
+ * Returns the old value of @v.
*/
-static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
+static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
{
int c, old;
c = atomic_read(v);
@@ -323,9 +323,8 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
break;
c = old;
}
- return c != (u);
+ return c;
}
-#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
#define atomic_dec_return(v) atomic_sub_return(1, (v))
#define atomic_inc_return(v) atomic_add_return(1, (v))
@@ -680,7 +679,7 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
* @u: ...unless v is equal to u.
*
* Atomically adds @a to @v, so long as it was not @u.
- * Returns non-zero if @v was not @u, and zero otherwise.
+ * Returns the old value of @v.
*/
static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
{
@@ -766,10 +765,6 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
*/
#define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0)
-#else /* !CONFIG_64BIT */
-
-#include <asm-generic/atomic64.h>
-
#endif /* CONFIG_64BIT */
/*
@@ -781,6 +776,4 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
#define smp_mb__before_atomic_inc() smp_mb__before_llsc()
#define smp_mb__after_atomic_inc() smp_llsc_mb()
-#include <asm-generic/atomic-long.h>
-
#endif /* _ASM_ATOMIC_H */
diff --git a/arch/mips/include/asm/fixmap.h b/arch/mips/include/asm/fixmap.h
index 0b89b83e2055..98bcc98cf29b 100644
--- a/arch/mips/include/asm/fixmap.h
+++ b/arch/mips/include/asm/fixmap.h
@@ -14,6 +14,7 @@
#define _ASM_FIXMAP_H
#include <asm/page.h>
+#include <spaces.h>
#ifdef CONFIG_HIGHMEM
#include <linux/threads.h>
#include <asm/kmap_types.h>
@@ -67,15 +68,6 @@ enum fixed_addresses {
* the start of the fixmap, and leave one page empty
* at the top of mem..
*/
-#ifdef CONFIG_BCM63XX
-#define FIXADDR_TOP ((unsigned long)(long)(int)0xff000000)
-#else
-#if defined(CONFIG_CPU_TX39XX) || defined(CONFIG_CPU_TX49XX)
-#define FIXADDR_TOP ((unsigned long)(long)(int)(0xff000000 - 0x20000))
-#else
-#define FIXADDR_TOP ((unsigned long)(long)(int)0xfffe0000)
-#endif
-#endif
#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
diff --git a/arch/mips/include/asm/floppy.h b/arch/mips/include/asm/floppy.h
index c5c7c0e6064c..4456c9c47e21 100644
--- a/arch/mips/include/asm/floppy.h
+++ b/arch/mips/include/asm/floppy.h
@@ -29,7 +29,7 @@ static inline void fd_cacheflush(char * addr, long size)
#define FLOPPY0_TYPE fd_drive_type(0)
#define FLOPPY1_TYPE fd_drive_type(1)
-#define FDC1 fd_getfdaddr1();
+#define FDC1 fd_getfdaddr1()
#define N_FDC 1 /* do you *really* want a second controller? */
#define N_DRIVE 8
diff --git a/arch/mips/include/asm/gt64120.h b/arch/mips/include/asm/gt64120.h
index e64b41093c49..0aa44abc77fe 100644
--- a/arch/mips/include/asm/gt64120.h
+++ b/arch/mips/include/asm/gt64120.h
@@ -21,8 +21,6 @@
#ifndef _ASM_GT64120_H
#define _ASM_GT64120_H
-#include <linux/clocksource.h>
-
#include <asm/addrspace.h>
#include <asm/byteorder.h>
diff --git a/arch/mips/include/asm/hw_irq.h b/arch/mips/include/asm/hw_irq.h
index 77adda297ad9..9e8ef5994c9c 100644
--- a/arch/mips/include/asm/hw_irq.h
+++ b/arch/mips/include/asm/hw_irq.h
@@ -8,7 +8,7 @@
#ifndef __ASM_HW_IRQ_H
#define __ASM_HW_IRQ_H
-#include <asm/atomic.h>
+#include <linux/atomic.h>
extern atomic_t irq_err_count;
diff --git a/arch/mips/include/asm/i8253.h b/arch/mips/include/asm/i8253.h
deleted file mode 100644
index 9ad011366f73..000000000000
--- a/arch/mips/include/asm/i8253.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Machine specific IO port address definition for generic.
- * Written by Osamu Tomita <tomita@cinet.co.jp>
- */
-#ifndef __ASM_I8253_H
-#define __ASM_I8253_H
-
-#include <linux/spinlock.h>
-
-/* i8253A PIT registers */
-#define PIT_MODE 0x43
-#define PIT_CH0 0x40
-#define PIT_CH2 0x42
-
-#define PIT_LATCH LATCH
-
-extern raw_spinlock_t i8253_lock;
-
-extern void setup_pit_timer(void);
-
-#define inb_pit inb_p
-#define outb_pit outb_p
-
-#endif /* __ASM_I8253_H */
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index 0ec01294b063..2354c870a63a 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -18,7 +18,6 @@
static inline void irq_dispose_mapping(unsigned int virq)
{
- return;
}
#ifdef CONFIG_I8259
diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h
index fffc8307a80a..94fde8d0fac1 100644
--- a/arch/mips/include/asm/local.h
+++ b/arch/mips/include/asm/local.h
@@ -3,7 +3,7 @@
#include <linux/percpu.h>
#include <linux/bitops.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/cmpxchg.h>
#include <asm/war.h>
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 85fd27509aac..0ed5230243c9 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -89,7 +89,6 @@
/* Interrupt Mask register */
#define PERF_IRQMASK_REG 0xc
-#define PERF_IRQSTAT_REG 0x10
/* Interrupt Status register */
#define PERF_IRQSTAT_REG 0x10
diff --git a/arch/mips/include/asm/mach-bcm63xx/spaces.h b/arch/mips/include/asm/mach-bcm63xx/spaces.h
new file mode 100644
index 000000000000..61e750fb4653
--- /dev/null
+++ b/arch/mips/include/asm/mach-bcm63xx/spaces.h
@@ -0,0 +1,17 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994 - 1999, 2000, 03, 04 Ralf Baechle
+ * Copyright (C) 2000, 2002 Maciej W. Rozycki
+ * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_BCM63XX_SPACES_H
+#define _ASM_BCM63XX_SPACES_H
+
+#define FIXADDR_TOP ((unsigned long)(long)(int)0xff000000)
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* __ASM_BCM63XX_SPACES_H */
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 8da98073e952..9c95177f7a7e 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -49,7 +49,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
static inline void plat_extra_sync_for_device(struct device *dev)
{
- return;
}
static inline int plat_dma_mapping_error(struct device *dev,
diff --git a/arch/mips/include/asm/mach-generic/spaces.h b/arch/mips/include/asm/mach-generic/spaces.h
index c9fa4b14968d..d7a9efd3a5ce 100644
--- a/arch/mips/include/asm/mach-generic/spaces.h
+++ b/arch/mips/include/asm/mach-generic/spaces.h
@@ -82,4 +82,8 @@
#define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET)
#endif
+#ifndef FIXADDR_TOP
+#define FIXADDR_TOP ((unsigned long)(long)(int)0xfffe0000)
+#endif
+
#endif /* __ASM_MACH_GENERIC_SPACES_H */
diff --git a/arch/mips/include/asm/mach-ip27/dma-coherence.h b/arch/mips/include/asm/mach-ip27/dma-coherence.h
index 016d0989b141..06c441968e6e 100644
--- a/arch/mips/include/asm/mach-ip27/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ip27/dma-coherence.h
@@ -60,7 +60,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
static inline void plat_extra_sync_for_device(struct device *dev)
{
- return;
}
static inline int plat_dma_mapping_error(struct device *dev,
diff --git a/arch/mips/include/asm/mach-jazz/dma-coherence.h b/arch/mips/include/asm/mach-jazz/dma-coherence.h
index 302101b54acb..9fc1e9ad7038 100644
--- a/arch/mips/include/asm/mach-jazz/dma-coherence.h
+++ b/arch/mips/include/asm/mach-jazz/dma-coherence.h
@@ -50,7 +50,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
static inline void plat_extra_sync_for_device(struct device *dev)
{
- return;
}
static inline int plat_dma_mapping_error(struct device *dev,
diff --git a/arch/mips/include/asm/mach-jz4740/gpio.h b/arch/mips/include/asm/mach-jz4740/gpio.h
index 7b74703745bb..1a6482ea0bb3 100644
--- a/arch/mips/include/asm/mach-jz4740/gpio.h
+++ b/arch/mips/include/asm/mach-jz4740/gpio.h
@@ -25,14 +25,13 @@ enum jz_gpio_function {
JZ_GPIO_FUNC3,
};
-
/*
Usually a driver for a SoC component has to request several gpio pins and
configure them as funcion pins.
jz_gpio_bulk_request can be used to ease this process.
Usually one would do something like:
- const static struct jz_gpio_bulk_request i2c_pins[] = {
+ static const struct jz_gpio_bulk_request i2c_pins[] = {
JZ_GPIO_BULK_PIN(I2C_SDA),
JZ_GPIO_BULK_PIN(I2C_SCK),
};
@@ -47,8 +46,8 @@ enum jz_gpio_function {
jz_gpio_bulk_free(i2c_pins, ARRAY_SIZE(i2c_pins));
-
*/
+
struct jz_gpio_bulk_request {
int gpio;
const char *name;
diff --git a/arch/mips/include/asm/mach-loongson/dma-coherence.h b/arch/mips/include/asm/mach-loongson/dma-coherence.h
index 981c75f91a7d..e1433055fe98 100644
--- a/arch/mips/include/asm/mach-loongson/dma-coherence.h
+++ b/arch/mips/include/asm/mach-loongson/dma-coherence.h
@@ -55,7 +55,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
static inline void plat_extra_sync_for_device(struct device *dev)
{
- return;
}
static inline int plat_dma_mapping_error(struct device *dev,
diff --git a/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h b/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h
index 2848cea42bce..37e3583a9fdd 100644
--- a/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h
@@ -32,6 +32,7 @@
/* #define cpu_has_vtag_icache ? */
/* #define cpu_has_dc_aliases ? */
/* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_clo_clz 1
#define cpu_has_nofpuex 0
/* #define cpu_has_64bits ? */
/* #define cpu_has_64bit_zero_reg ? */
@@ -58,6 +59,7 @@
/* #define cpu_has_vtag_icache ? */
/* #define cpu_has_dc_aliases ? */
/* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_clo_clz 1
#define cpu_has_nofpuex 0
/* #define cpu_has_64bits ? */
/* #define cpu_has_64bit_zero_reg ? */
diff --git a/arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h b/arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h
index 779b02205737..27aaaa5d925e 100644
--- a/arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h
@@ -31,6 +31,7 @@
/* #define cpu_has_vtag_icache ? */
/* #define cpu_has_dc_aliases ? */
/* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_clo_clz 1
#define cpu_has_nofpuex 0
/* #define cpu_has_64bits ? */
/* #define cpu_has_64bit_zero_reg ? */
@@ -56,6 +57,7 @@
/* #define cpu_has_vtag_icache ? */
/* #define cpu_has_dc_aliases ? */
/* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_clo_clz 1
#define cpu_has_nofpuex 0
/* #define cpu_has_64bits ? */
/* #define cpu_has_64bit_zero_reg ? */
diff --git a/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h b/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h
new file mode 100644
index 000000000000..f751e3ec56fb
--- /dev/null
+++ b/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2010 Cisco Systems, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _ASM_MACH_POWERTV_CPU_FEATURE_OVERRIDES_H_
+#define _ASM_MACH_POWERTV_CPU_FEATURE_OVERRIDES_H_
+#define cpu_has_tlb 1
+#define cpu_has_4kex 1
+#define cpu_has_3k_cache 0
+#define cpu_has_4k_cache 1
+#define cpu_has_tx39_cache 0
+#define cpu_has_fpu 0
+#define cpu_has_counter 1
+#define cpu_has_watch 1
+#define cpu_has_divec 1
+#define cpu_has_vce 0
+#define cpu_has_cache_cdex_p 0
+#define cpu_has_cache_cdex_s 0
+#define cpu_has_mcheck 1
+#define cpu_has_ejtag 1
+#define cpu_has_llsc 1
+#define cpu_has_mips16 0
+#define cpu_has_mdmx 0
+#define cpu_has_mips3d 0
+#define cpu_has_smartmips 0
+#define cpu_has_vtag_icache 0
+#define cpu_has_dc_aliases 0
+#define cpu_has_ic_fills_f_dc 0
+#define cpu_has_mips32r1 0
+#define cpu_has_mips32r2 1
+#define cpu_has_mips64r1 0
+#define cpu_has_mips64r2 0
+#define cpu_has_dsp 0
+#define cpu_has_mipsmt 0
+#define cpu_has_userlocal 0
+#define cpu_has_nofpuex 0
+#define cpu_has_64bits 0
+#define cpu_has_64bit_zero_reg 0
+#define cpu_has_vint 1
+#define cpu_has_veic 1
+#define cpu_has_inclusive_pcaches 0
+
+#define cpu_dcache_line_size() 32
+#define cpu_icache_line_size() 32
+#endif
diff --git a/arch/mips/include/asm/mach-powertv/dma-coherence.h b/arch/mips/include/asm/mach-powertv/dma-coherence.h
index a8e72cf12142..62c094085947 100644
--- a/arch/mips/include/asm/mach-powertv/dma-coherence.h
+++ b/arch/mips/include/asm/mach-powertv/dma-coherence.h
@@ -102,7 +102,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
static inline void plat_extra_sync_for_device(struct device *dev)
{
- return;
}
static inline int plat_dma_mapping_error(struct device *dev,
diff --git a/arch/mips/include/asm/mach-tx39xx/spaces.h b/arch/mips/include/asm/mach-tx39xx/spaces.h
new file mode 100644
index 000000000000..151fe7a1cf1d
--- /dev/null
+++ b/arch/mips/include/asm/mach-tx39xx/spaces.h
@@ -0,0 +1,17 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994 - 1999, 2000, 03, 04 Ralf Baechle
+ * Copyright (C) 2000, 2002 Maciej W. Rozycki
+ * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_TX39XX_SPACES_H
+#define _ASM_TX39XX_SPACES_H
+
+#define FIXADDR_TOP ((unsigned long)(long)(int)0xfefe0000)
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* __ASM_TX39XX_SPACES_H */
diff --git a/arch/mips/include/asm/mach-tx49xx/spaces.h b/arch/mips/include/asm/mach-tx49xx/spaces.h
new file mode 100644
index 000000000000..0cb10a6f489e
--- /dev/null
+++ b/arch/mips/include/asm/mach-tx49xx/spaces.h
@@ -0,0 +1,17 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994 - 1999, 2000, 03, 04 Ralf Baechle
+ * Copyright (C) 2000, 2002 Maciej W. Rozycki
+ * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_TX49XX_SPACES_H
+#define _ASM_TX49XX_SPACES_H
+
+#define FIXADDR_TOP ((unsigned long)(long)(int)0xfefe0000)
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* __ASM_TX49XX_SPACES_H */
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index 7e40f3778179..b2202a68cf0f 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -414,6 +414,7 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
* constraints placed on us by the cache architecture.
*/
#define HAVE_ARCH_UNMAPPED_AREA
+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
/*
* No page table caches to initialise
diff --git a/arch/mips/include/asm/smp-ops.h b/arch/mips/include/asm/smp-ops.h
index 9e09af34c8a8..ef2a8041e78b 100644
--- a/arch/mips/include/asm/smp-ops.h
+++ b/arch/mips/include/asm/smp-ops.h
@@ -11,6 +11,8 @@
#ifndef __ASM_SMP_OPS_H
#define __ASM_SMP_OPS_H
+#include <linux/errno.h>
+
#ifdef CONFIG_SMP
#include <linux/cpumask.h>
@@ -56,8 +58,43 @@ static inline void register_smp_ops(struct plat_smp_ops *ops)
#endif /* !CONFIG_SMP */
-extern struct plat_smp_ops up_smp_ops;
-extern struct plat_smp_ops cmp_smp_ops;
-extern struct plat_smp_ops vsmp_smp_ops;
+static inline int register_up_smp_ops(void)
+{
+#ifdef CONFIG_SMP_UP
+ extern struct plat_smp_ops up_smp_ops;
+
+ register_smp_ops(&up_smp_ops);
+
+ return 0;
+#else
+ return -ENODEV;
+#endif
+}
+
+static inline int register_cmp_smp_ops(void)
+{
+#ifdef CONFIG_MIPS_CMP
+ extern struct plat_smp_ops cmp_smp_ops;
+
+ register_smp_ops(&cmp_smp_ops);
+
+ return 0;
+#else
+ return -ENODEV;
+#endif
+}
+
+static inline int register_vsmp_smp_ops(void)
+{
+#ifdef CONFIG_MIPS_MT_SMP
+ extern struct plat_smp_ops vsmp_smp_ops;
+
+ register_smp_ops(&vsmp_smp_ops);
+
+ return 0;
+#else
+ return -ENODEV;
+#endif
+}
#endif /* __ASM_SMP_OPS_H */
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index af42385245d5..d4fb4d852a6d 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -17,7 +17,7 @@
#include <linux/threads.h>
#include <linux/cpumask.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/smp-ops.h>
extern int smp_num_siblings;
diff --git a/arch/mips/include/asm/smtc.h b/arch/mips/include/asm/smtc.h
index ea60bf08dcb0..c9736fc06325 100644
--- a/arch/mips/include/asm/smtc.h
+++ b/arch/mips/include/asm/smtc.h
@@ -46,6 +46,7 @@ extern void smtc_prepare_cpus(int cpus);
extern void smtc_smp_finish(void);
extern void smtc_boot_secondary(int cpu, struct task_struct *t);
extern void smtc_cpus_done(void);
+extern void smtc_init_secondary(void);
/*
diff --git a/arch/mips/include/asm/stacktrace.h b/arch/mips/include/asm/stacktrace.h
index 0bf82818aa53..780ee2c2a2ac 100644
--- a/arch/mips/include/asm/stacktrace.h
+++ b/arch/mips/include/asm/stacktrace.h
@@ -7,6 +7,10 @@
extern int raw_show_trace;
extern unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
unsigned long pc, unsigned long *ra);
+extern unsigned long unwind_stack_by_address(unsigned long stack_page,
+ unsigned long *sp,
+ unsigned long pc,
+ unsigned long *ra);
#else
#define raw_show_trace 1
static inline unsigned long unwind_stack(struct task_struct *task,
diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h
index dcbd4bb417ec..504d40aedfae 100644
--- a/arch/mips/include/asm/uasm.h
+++ b/arch/mips/include/asm/uasm.h
@@ -150,6 +150,7 @@ static inline void __uasminit uasm_l##lb(struct uasm_label **lab, u32 *addr) \
# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh)
# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh)
# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh)
+# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_dsrl_safe(buf, rs, rt, sh)
# define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_drotr(buf, rs, rt, sh)
# define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd)
# define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd)
@@ -165,6 +166,7 @@ static inline void __uasminit uasm_l##lb(struct uasm_label **lab, u32 *addr) \
# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh)
# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh)
# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
+# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
# define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_rotr(buf, rs, rt, sh)
# define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd)
# define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd)
diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index 6fcfc480e9d0..ecea7871dec2 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -363,17 +363,18 @@
#define __NR_open_by_handle_at (__NR_Linux + 340)
#define __NR_clock_adjtime (__NR_Linux + 341)
#define __NR_syncfs (__NR_Linux + 342)
-#define __NR_setns (__NR_Linux + 343)
+#define __NR_sendmmsg (__NR_Linux + 343)
+#define __NR_setns (__NR_Linux + 344)
/*
* Offset of the last Linux o32 flavoured syscall
*/
-#define __NR_Linux_syscalls 343
+#define __NR_Linux_syscalls 344
#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
#define __NR_O32_Linux 4000
-#define __NR_O32_Linux_syscalls 343
+#define __NR_O32_Linux_syscalls 344
#if _MIPS_SIM == _MIPS_SIM_ABI64
@@ -683,17 +684,18 @@
#define __NR_open_by_handle_at (__NR_Linux + 299)
#define __NR_clock_adjtime (__NR_Linux + 300)
#define __NR_syncfs (__NR_Linux + 301)
-#define __NR_setns (__NR_Linux + 302)
+#define __NR_sendmmsg (__NR_Linux + 302)
+#define __NR_setns (__NR_Linux + 303)
/*
* Offset of the last Linux 64-bit flavoured syscall
*/
-#define __NR_Linux_syscalls 302
+#define __NR_Linux_syscalls 303
#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
#define __NR_64_Linux 5000
-#define __NR_64_Linux_syscalls 302
+#define __NR_64_Linux_syscalls 303
#if _MIPS_SIM == _MIPS_SIM_NABI32
@@ -1008,17 +1010,18 @@
#define __NR_open_by_handle_at (__NR_Linux + 304)
#define __NR_clock_adjtime (__NR_Linux + 305)
#define __NR_syncfs (__NR_Linux + 306)
-#define __NR_setns (__NR_Linux + 307)
+#define __NR_sendmmsg (__NR_Linux + 307)
+#define __NR_setns (__NR_Linux + 308)
/*
* Offset of the last N32 flavoured syscall
*/
-#define __NR_Linux_syscalls 307
+#define __NR_Linux_syscalls 308
#endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
#define __NR_N32_Linux 6000
-#define __NR_N32_Linux_syscalls 307
+#define __NR_N32_Linux_syscalls 308
#ifdef __KERNEL__
diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c
index 260df4750949..ca9bd2069142 100644
--- a/arch/mips/jazz/irq.c
+++ b/arch/mips/jazz/irq.c
@@ -7,6 +7,7 @@
* Copyright (C) 1994 - 2001, 2003, 07 Ralf Baechle
*/
#include <linux/clockchips.h>
+#include <linux/i8253.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
@@ -15,7 +16,6 @@
#include <linux/irq.h>
#include <asm/irq_cpu.h>
-#include <asm/i8253.h>
#include <asm/i8259.h>
#include <asm/io.h>
#include <asm/jazz.h>
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index bb133d10b145..ebc0cd20b35d 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -71,7 +71,6 @@ void r4k_wait_irqoff(void)
local_irq_enable();
__asm__(" .globl __pastwait \n"
"__pastwait: \n");
- return;
}
/*
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c
index 391221b6a6aa..be4ee7d63e04 100644
--- a/arch/mips/kernel/i8253.c
+++ b/arch/mips/kernel/i8253.c
@@ -3,96 +3,16 @@
*
*/
#include <linux/clockchips.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/jiffies.h>
+#include <linux/i8253.h>
#include <linux/module.h>
#include <linux/smp.h>
-#include <linux/spinlock.h>
#include <linux/irq.h>
-#include <asm/delay.h>
-#include <asm/i8253.h>
-#include <asm/io.h>
#include <asm/time.h>
-DEFINE_RAW_SPINLOCK(i8253_lock);
-EXPORT_SYMBOL(i8253_lock);
-
-/*
- * Initialize the PIT timer.
- *
- * This is also called after resume to bring the PIT into operation again.
- */
-static void init_pit_timer(enum clock_event_mode mode,
- struct clock_event_device *evt)
-{
- raw_spin_lock(&i8253_lock);
-
- switch(mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- /* binary, mode 2, LSB/MSB, ch 0 */
- outb_p(0x34, PIT_MODE);
- outb_p(LATCH & 0xff , PIT_CH0); /* LSB */
- outb(LATCH >> 8 , PIT_CH0); /* MSB */
- break;
-
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_UNUSED:
- if (evt->mode == CLOCK_EVT_MODE_PERIODIC ||
- evt->mode == CLOCK_EVT_MODE_ONESHOT) {
- outb_p(0x30, PIT_MODE);
- outb_p(0, PIT_CH0);
- outb_p(0, PIT_CH0);
- }
- break;
-
- case CLOCK_EVT_MODE_ONESHOT:
- /* One shot setup */
- outb_p(0x38, PIT_MODE);
- break;
-
- case CLOCK_EVT_MODE_RESUME:
- /* Nothing to do here */
- break;
- }
- raw_spin_unlock(&i8253_lock);
-}
-
-/*
- * Program the next event in oneshot mode
- *
- * Delta is given in PIT ticks
- */
-static int pit_next_event(unsigned long delta, struct clock_event_device *evt)
-{
- raw_spin_lock(&i8253_lock);
- outb_p(delta & 0xff , PIT_CH0); /* LSB */
- outb(delta >> 8 , PIT_CH0); /* MSB */
- raw_spin_unlock(&i8253_lock);
-
- return 0;
-}
-
-/*
- * On UP the PIT can serve all of the possible timer functions. On SMP systems
- * it can be solely used for the global tick.
- *
- * The profiling and update capabilites are switched off once the local apic is
- * registered. This mechanism replaces the previous #ifdef LOCAL_APIC -
- * !using_apic_timer decisions in do_timer_interrupt_hook()
- */
-static struct clock_event_device pit_clockevent = {
- .name = "pit",
- .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .set_mode = init_pit_timer,
- .set_next_event = pit_next_event,
- .irq = 0,
-};
-
static irqreturn_t timer_interrupt(int irq, void *dev_id)
{
- pit_clockevent.event_handler(&pit_clockevent);
+ i8253_clockevent.event_handler(&i8253_clockevent);
return IRQ_HANDLED;
}
@@ -103,25 +23,9 @@ static struct irqaction irq0 = {
.name = "timer"
};
-/*
- * Initialize the conversion factor and the min/max deltas of the clock event
- * structure and register the clock event source with the framework.
- */
void __init setup_pit_timer(void)
{
- struct clock_event_device *cd = &pit_clockevent;
- unsigned int cpu = smp_processor_id();
-
- /*
- * Start pit with the boot cpu mask and make it global after the
- * IO_APIC has been initialized.
- */
- cd->cpumask = cpumask_of(cpu);
- clockevent_set_clock(cd, CLOCK_TICK_RATE);
- cd->max_delta_ns = clockevent_delta2ns(0x7FFF, cd);
- cd->min_delta_ns = clockevent_delta2ns(0xF, cd);
- clockevents_register_device(cd);
-
+ clockevent_i8253_init(true);
setup_irq(0, &irq0);
}
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index 9b734d74ae8e..b53970d80991 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -23,7 +23,7 @@
#include <linux/kgdb.h>
#include <linux/ftrace.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/system.h>
#include <asm/uaccess.h>
diff --git a/arch/mips/kernel/irq_cpu.c b/arch/mips/kernel/irq_cpu.c
index 6e71b284f6c9..191eb52228c4 100644
--- a/arch/mips/kernel/irq_cpu.c
+++ b/arch/mips/kernel/irq_cpu.c
@@ -103,14 +103,12 @@ void __init mips_cpu_irq_init(void)
clear_c0_status(ST0_IM);
clear_c0_cause(CAUSEF_IP);
- /*
- * Only MT is using the software interrupts currently, so we just
- * leave them uninitialized for other processors.
- */
- if (cpu_has_mipsmt)
- for (i = irq_base; i < irq_base + 2; i++)
- irq_set_chip_and_handler(i, &mips_mt_cpu_irq_controller,
- handle_percpu_irq);
+ /* Software interrupts are used for MT/CMT IPI */
+ for (i = irq_base; i < irq_base + 2; i++)
+ irq_set_chip_and_handler(i, cpu_has_mipsmt ?
+ &mips_mt_cpu_irq_controller :
+ &mips_cpu_irq_controller,
+ handle_percpu_irq);
for (i = irq_base + 2; i < irq_base + 8; i++)
irq_set_chip_and_handler(i, &mips_cpu_irq_controller,
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c
index b2259e7cd829..594ca69cb867 100644
--- a/arch/mips/kernel/mips-mt.c
+++ b/arch/mips/kernel/mips-mt.c
@@ -12,7 +12,7 @@
#include <asm/cpu.h>
#include <asm/processor.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/system.h>
#include <asm/hardirq.h>
#include <asm/mmu_context.h>
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index dd940b701963..4b930ac4aff2 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -45,30 +45,14 @@ static struct mips_hi16 *mips_hi16_list;
static LIST_HEAD(dbe_list);
static DEFINE_SPINLOCK(dbe_lock);
+#ifdef MODULE_START
void *module_alloc(unsigned long size)
{
-#ifdef MODULE_START
return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
GFP_KERNEL, PAGE_KERNEL, -1,
__builtin_return_address(0));
-#else
- if (size == 0)
- return NULL;
- return vmalloc(size);
-#endif
-}
-
-/* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
-{
- vfree(module_region);
-}
-
-int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
- char *secstrings, struct module *mod)
-{
- return 0;
}
+#endif
static int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v)
{
diff --git a/arch/mips/kernel/perf_event.c b/arch/mips/kernel/perf_event.c
index a8244854d3dc..0aee944ac380 100644
--- a/arch/mips/kernel/perf_event.c
+++ b/arch/mips/kernel/perf_event.c
@@ -192,8 +192,6 @@ again:
local64_add(delta, &event->count);
local64_sub(delta, &hwc->period_left);
-
- return;
}
static void mipspmu_start(struct perf_event *event, int flags)
@@ -527,7 +525,7 @@ handle_associated_event(struct cpu_hw_events *cpuc,
if (!mipspmu_event_set_period(event, hwc, idx))
return;
- if (perf_event_overflow(event, 0, data, regs))
+ if (perf_event_overflow(event, data, regs))
mipspmu->disable_event(idx);
}
diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index 75266ff4cc33..e5ad09a9baf7 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -377,6 +377,20 @@ static const struct mips_perf_event mipsxxcore_cache_map
[C(RESULT_MISS)] = { UNSUPPORTED_PERF_EVENT_ID },
},
},
+[C(NODE)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ [C(RESULT_MISS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ [C(RESULT_MISS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ [C(RESULT_MISS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ },
+},
};
/* 74K core has completely different cache event map. */
@@ -480,6 +494,20 @@ static const struct mips_perf_event mipsxx74Kcore_cache_map
[C(RESULT_MISS)] = { UNSUPPORTED_PERF_EVENT_ID },
},
},
+[C(NODE)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ [C(RESULT_MISS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ [C(RESULT_MISS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ [C(RESULT_MISS)] = { UNSUPPORTED_PERF_EVENT_ID },
+ },
+},
};
#ifdef CONFIG_MIPS_MT_SMP
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index d2112d3cf115..b30cb2573aaf 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -103,7 +103,6 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp)
__init_dsp();
regs->cp0_epc = pc;
regs->regs[29] = sp;
- current_thread_info()->addr_limit = USER_DS;
}
void exit_thread(void)
@@ -373,18 +372,18 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
#ifdef CONFIG_KALLSYMS
-/* used by show_backtrace() */
-unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
- unsigned long pc, unsigned long *ra)
+/* generic stack unwinding function */
+unsigned long notrace unwind_stack_by_address(unsigned long stack_page,
+ unsigned long *sp,
+ unsigned long pc,
+ unsigned long *ra)
{
- unsigned long stack_page;
struct mips_frame_info info;
unsigned long size, ofs;
int leaf;
extern void ret_from_irq(void);
extern void ret_from_exception(void);
- stack_page = (unsigned long)task_stack_page(task);
if (!stack_page)
return 0;
@@ -443,6 +442,15 @@ unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
*ra = 0;
return __kernel_text_address(pc) ? pc : 0;
}
+EXPORT_SYMBOL(unwind_stack_by_address);
+
+/* used by show_backtrace() */
+unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
+ unsigned long pc, unsigned long *ra)
+{
+ unsigned long stack_page = (unsigned long)task_stack_page(task);
+ return unwind_stack_by_address(stack_page, sp, pc, ra);
+}
#endif
/*
diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index 557ef72472e0..7a80b7cda7cc 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -36,7 +36,7 @@
#include <asm/mipsmtregs.h>
#include <asm/mips_mt.h>
#include <asm/cacheflush.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/cpu.h>
#include <asm/processor.h>
#include <asm/system.h>
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 99e656e425f3..e521420a45a5 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -589,6 +589,7 @@ einval: li v0, -ENOSYS
sys sys_open_by_handle_at 3 /* 4340 */
sys sys_clock_adjtime 2
sys sys_syncfs 1
+ sys sys_sendmmsg 4
sys sys_setns 2
.endm
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index fb0575f47f3d..85874d6a8a70 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -428,5 +428,6 @@ sys_call_table:
PTR sys_open_by_handle_at
PTR sys_clock_adjtime /* 5300 */
PTR sys_syncfs
+ PTR sys_sendmmsg
PTR sys_setns
.size sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 4de0c5534e73..b85842fc87ae 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -428,5 +428,6 @@ EXPORT(sysn32_call_table)
PTR sys_open_by_handle_at
PTR compat_sys_clock_adjtime /* 6305 */
PTR sys_syncfs
+ PTR compat_sys_sendmmsg
PTR sys_setns
.size sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 4a387de08bfa..46c4763edf21 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -546,5 +546,6 @@ sys_call_table:
PTR compat_sys_open_by_handle_at /* 4340 */
PTR compat_sys_clock_adjtime
PTR sys_syncfs
+ PTR compat_sys_sendmmsg
PTR sys_setns
.size sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c
index cc81771b882c..fe3095160655 100644
--- a/arch/mips/kernel/smp-cmp.c
+++ b/arch/mips/kernel/smp-cmp.c
@@ -25,7 +25,7 @@
#include <linux/interrupt.h>
#include <linux/compiler.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/cacheflush.h>
#include <asm/cpu.h>
#include <asm/processor.h>
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index 1ec56e635d04..ce9e286f0a74 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -24,7 +24,7 @@
#include <linux/compiler.h>
#include <linux/smp.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/cacheflush.h>
#include <asm/cpu.h>
#include <asm/processor.h>
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 32a256101082..32c1e954cd37 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -34,7 +34,7 @@
#include <linux/err.h>
#include <linux/ftrace.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/cpu.h>
#include <asm/processor.h>
#include <asm/r4k-timer.h>
diff --git a/arch/mips/kernel/smtc-proc.c b/arch/mips/kernel/smtc-proc.c
index fe256559c997..928a5a61e1a6 100644
--- a/arch/mips/kernel/smtc-proc.c
+++ b/arch/mips/kernel/smtc-proc.c
@@ -10,7 +10,7 @@
#include <asm/cpu.h>
#include <asm/processor.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/system.h>
#include <asm/hardirq.h>
#include <asm/mmu_context.h>
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index cedac4633741..f0895e70e283 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -30,7 +30,7 @@
#include <asm/cpu.h>
#include <asm/processor.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/system.h>
#include <asm/hardirq.h>
#include <asm/hazards.h>
diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c
index 05dd170a83f7..99f913c8d7a6 100644
--- a/arch/mips/kernel/sync-r4k.c
+++ b/arch/mips/kernel/sync-r4k.c
@@ -16,7 +16,7 @@
#include <linux/cpumask.h>
#include <asm/r4k-timer.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/barrier.h>
#include <asm/mipsregs.h>
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index e9b3af27d844..b7517e3abc85 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -578,12 +578,12 @@ static int simulate_llsc(struct pt_regs *regs, unsigned int opcode)
{
if ((opcode & OPCODE) == LL) {
perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,
- 1, 0, regs, 0);
+ 1, regs, 0);
return simulate_ll(regs, opcode);
}
if ((opcode & OPCODE) == SC) {
perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,
- 1, 0, regs, 0);
+ 1, regs, 0);
return simulate_sc(regs, opcode);
}
@@ -602,7 +602,7 @@ static int simulate_rdhwr(struct pt_regs *regs, unsigned int opcode)
int rd = (opcode & RD) >> 11;
int rt = (opcode & RT) >> 16;
perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,
- 1, 0, regs, 0);
+ 1, regs, 0);
switch (rd) {
case 0: /* CPU number */
regs->regs[rt] = smp_processor_id();
@@ -640,7 +640,7 @@ static int simulate_sync(struct pt_regs *regs, unsigned int opcode)
{
if ((opcode & OPCODE) == SPEC0 && (opcode & FUNC) == SYNC) {
perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,
- 1, 0, regs, 0);
+ 1, regs, 0);
return 0;
}
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index cfea1adfa153..eb319b580353 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -111,8 +111,7 @@ static void emulate_load_store_insn(struct pt_regs *regs,
unsigned long value;
unsigned int res;
- perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,
- 1, 0, regs, 0);
+ perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, regs, 0);
/*
* This load never faults.
@@ -517,7 +516,7 @@ asmlinkage void do_ade(struct pt_regs *regs)
mm_segment_t seg;
perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,
- 1, 0, regs, regs->cp0_badvaddr);
+ 1, regs, regs->cp0_badvaddr);
/*
* Did we catch a fault trying to load an instruction?
* Or are we running in MIPS16 mode?
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index dbb6b408f001..2cd50ad0d5c6 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -46,7 +46,7 @@
#include <asm/mipsregs.h>
#include <asm/mipsmtregs.h>
#include <asm/cacheflush.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/cpu.h>
#include <asm/mips_mt.h>
#include <asm/processor.h>
diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index 94560899d13e..7e9c0ffc11a5 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -100,6 +100,19 @@ void clk_put(struct clk *clk)
}
EXPORT_SYMBOL(clk_put);
+int clk_enable(struct clk *clk)
+{
+ /* not used */
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+ /* not used */
+}
+EXPORT_SYMBOL(clk_disable);
+
static inline u32 ltq_get_counter_resolution(void)
{
u32 res;
diff --git a/arch/mips/lantiq/devices.c b/arch/mips/lantiq/devices.c
index 7b82c34cb169..44a36771c819 100644
--- a/arch/mips/lantiq/devices.c
+++ b/arch/mips/lantiq/devices.c
@@ -15,11 +15,9 @@
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/etherdevice.h>
-#include <linux/reboot.h>
#include <linux/time.h>
#include <linux/io.h>
#include <linux/gpio.h>
-#include <linux/leds.h>
#include <asm/bootinfo.h>
#include <asm/irq.h>
diff --git a/arch/mips/lantiq/xway/devices.c b/arch/mips/lantiq/xway/devices.c
index e09e789dfc27..d0e32ab2ea07 100644
--- a/arch/mips/lantiq/xway/devices.c
+++ b/arch/mips/lantiq/xway/devices.c
@@ -16,11 +16,9 @@
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/etherdevice.h>
-#include <linux/reboot.h>
#include <linux/time.h>
#include <linux/io.h>
#include <linux/gpio.h>
-#include <linux/leds.h>
#include <asm/bootinfo.h>
#include <asm/irq.h>
diff --git a/arch/mips/loongson/lemote-2f/ec_kb3310b.c b/arch/mips/loongson/lemote-2f/ec_kb3310b.c
index 64057244eec5..2b666d3a3947 100644
--- a/arch/mips/loongson/lemote-2f/ec_kb3310b.c
+++ b/arch/mips/loongson/lemote-2f/ec_kb3310b.c
@@ -45,8 +45,6 @@ void ec_write(unsigned short addr, unsigned char val)
/* flush the write action */
inb(EC_IO_PORT_DATA);
spin_unlock_irqrestore(&index_access_lock, flags);
-
- return;
}
EXPORT_SYMBOL_GPL(ec_write);
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index d32cb0503110..dbf2f93a5091 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -272,8 +272,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
}
emul:
- perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,
- 1, 0, xcp, 0);
+ perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, xcp, 0);
MIPS_FPU_EMU_INC_STATS(emulated);
switch (MIPSInst_OPCODE(ir)) {
case ldc1_op:{
diff --git a/arch/mips/mipssim/sim_setup.c b/arch/mips/mipssim/sim_setup.c
index 55f22a3afe61..256e0cdaa499 100644
--- a/arch/mips/mipssim/sim_setup.c
+++ b/arch/mips/mipssim/sim_setup.c
@@ -34,6 +34,7 @@
#include <asm/time.h>
#include <asm/mips-boards/sim.h>
#include <asm/mips-boards/simint.h>
+#include <asm/smp-ops.h>
static void __init serial_init(void);
@@ -59,18 +60,17 @@ void __init prom_init(void)
prom_meminit();
-#ifdef CONFIG_MIPS_MT_SMP
- if (cpu_has_mipsmt)
- register_smp_ops(&vsmp_smp_ops);
- else
- register_smp_ops(&up_smp_ops);
-#endif
+ if (cpu_has_mipsmt) {
+ if (!register_vsmp_smp_ops())
+ return;
+
#ifdef CONFIG_MIPS_MT_SMTC
- if (cpu_has_mipsmt)
register_smp_ops(&ssmtc_smp_ops);
- else
- register_smp_ops(&up_smp_ops);
+ return;
#endif
+ }
+
+ register_up_smp_ops();
}
static void __init serial_init(void)
diff --git a/arch/mips/mipssim/sim_smtc.c b/arch/mips/mipssim/sim_smtc.c
index 30df47258c2c..915063991f6e 100644
--- a/arch/mips/mipssim/sim_smtc.c
+++ b/arch/mips/mipssim/sim_smtc.c
@@ -24,7 +24,7 @@
#include <linux/interrupt.h>
#include <linux/smp.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/cpu.h>
#include <asm/processor.h>
#include <asm/smtc.h>
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index eeb642e4066e..b9aabb998a32 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -604,6 +604,7 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size)
r4k_blast_scache();
else
blast_scache_range(addr, addr + size);
+ __sync();
return;
}
@@ -620,6 +621,7 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size)
}
bc_wback_inv(addr, size);
+ __sync();
}
static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
@@ -647,6 +649,7 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
(addr + size - 1) & almask);
blast_inv_scache_range(addr, addr + size);
}
+ __sync();
return;
}
@@ -663,6 +666,7 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
}
bc_inv(addr, size);
+ __sync();
}
#endif /* CONFIG_DMA_NONCOHERENT */
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 21ea14efb837..46084912e588 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -15,18 +15,18 @@
#include <linux/scatterlist.h>
#include <linux/string.h>
#include <linux/gfp.h>
+#include <linux/highmem.h>
#include <asm/cache.h>
#include <asm/io.h>
#include <dma-coherence.h>
-static inline unsigned long dma_addr_to_virt(struct device *dev,
+static inline struct page *dma_addr_to_page(struct device *dev,
dma_addr_t dma_addr)
{
- unsigned long addr = plat_dma_addr_to_phys(dev, dma_addr);
-
- return (unsigned long)phys_to_virt(addr);
+ return pfn_to_page(
+ plat_dma_addr_to_phys(dev, dma_addr) >> PAGE_SHIFT);
}
/*
@@ -148,20 +148,20 @@ static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
free_pages(addr, get_order(size));
}
-static inline void __dma_sync(unsigned long addr, size_t size,
+static inline void __dma_sync_virtual(void *addr, size_t size,
enum dma_data_direction direction)
{
switch (direction) {
case DMA_TO_DEVICE:
- dma_cache_wback(addr, size);
+ dma_cache_wback((unsigned long)addr, size);
break;
case DMA_FROM_DEVICE:
- dma_cache_inv(addr, size);
+ dma_cache_inv((unsigned long)addr, size);
break;
case DMA_BIDIRECTIONAL:
- dma_cache_wback_inv(addr, size);
+ dma_cache_wback_inv((unsigned long)addr, size);
break;
default:
@@ -169,12 +169,49 @@ static inline void __dma_sync(unsigned long addr, size_t size,
}
}
+/*
+ * A single sg entry may refer to multiple physically contiguous
+ * pages. But we still need to process highmem pages individually.
+ * If highmem is not configured then the bulk of this loop gets
+ * optimized out.
+ */
+static inline void __dma_sync(struct page *page,
+ unsigned long offset, size_t size, enum dma_data_direction direction)
+{
+ size_t left = size;
+
+ do {
+ size_t len = left;
+
+ if (PageHighMem(page)) {
+ void *addr;
+
+ if (offset + len > PAGE_SIZE) {
+ if (offset >= PAGE_SIZE) {
+ page += offset >> PAGE_SHIFT;
+ offset &= ~PAGE_MASK;
+ }
+ len = PAGE_SIZE - offset;
+ }
+
+ addr = kmap_atomic(page);
+ __dma_sync_virtual(addr + offset, len, direction);
+ kunmap_atomic(addr);
+ } else
+ __dma_sync_virtual(page_address(page) + offset,
+ size, direction);
+ offset = 0;
+ page++;
+ left -= len;
+ } while (left);
+}
+
static void mips_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction direction, struct dma_attrs *attrs)
{
if (cpu_is_noncoherent_r10000(dev))
- __dma_sync(dma_addr_to_virt(dev, dma_addr), size,
- direction);
+ __dma_sync(dma_addr_to_page(dev, dma_addr),
+ dma_addr & ~PAGE_MASK, size, direction);
plat_unmap_dma_mem(dev, dma_addr, size, direction);
}
@@ -185,13 +222,11 @@ static int mips_dma_map_sg(struct device *dev, struct scatterlist *sg,
int i;
for (i = 0; i < nents; i++, sg++) {
- unsigned long addr;
-
- addr = (unsigned long) sg_virt(sg);
- if (!plat_device_is_coherent(dev) && addr)
- __dma_sync(addr, sg->length, direction);
- sg->dma_address = plat_map_dma_mem(dev,
- (void *)addr, sg->length);
+ if (!plat_device_is_coherent(dev))
+ __dma_sync(sg_page(sg), sg->offset, sg->length,
+ direction);
+ sg->dma_address = plat_map_dma_mem_page(dev, sg_page(sg)) +
+ sg->offset;
}
return nents;
@@ -201,30 +236,23 @@ static dma_addr_t mips_dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction direction,
struct dma_attrs *attrs)
{
- unsigned long addr;
-
- addr = (unsigned long) page_address(page) + offset;
-
if (!plat_device_is_coherent(dev))
- __dma_sync(addr, size, direction);
+ __dma_sync(page, offset, size, direction);
- return plat_map_dma_mem(dev, (void *)addr, size);
+ return plat_map_dma_mem_page(dev, page) + offset;
}
static void mips_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
int nhwentries, enum dma_data_direction direction,
struct dma_attrs *attrs)
{
- unsigned long addr;
int i;
for (i = 0; i < nhwentries; i++, sg++) {
if (!plat_device_is_coherent(dev) &&
- direction != DMA_TO_DEVICE) {
- addr = (unsigned long) sg_virt(sg);
- if (addr)
- __dma_sync(addr, sg->length, direction);
- }
+ direction != DMA_TO_DEVICE)
+ __dma_sync(sg_page(sg), sg->offset, sg->length,
+ direction);
plat_unmap_dma_mem(dev, sg->dma_address, sg->length, direction);
}
}
@@ -232,24 +260,18 @@ static void mips_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
static void mips_dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
{
- if (cpu_is_noncoherent_r10000(dev)) {
- unsigned long addr;
-
- addr = dma_addr_to_virt(dev, dma_handle);
- __dma_sync(addr, size, direction);
- }
+ if (cpu_is_noncoherent_r10000(dev))
+ __dma_sync(dma_addr_to_page(dev, dma_handle),
+ dma_handle & ~PAGE_MASK, size, direction);
}
static void mips_dma_sync_single_for_device(struct device *dev,
dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
{
plat_extra_sync_for_device(dev);
- if (!plat_device_is_coherent(dev)) {
- unsigned long addr;
-
- addr = dma_addr_to_virt(dev, dma_handle);
- __dma_sync(addr, size, direction);
- }
+ if (!plat_device_is_coherent(dev))
+ __dma_sync(dma_addr_to_page(dev, dma_handle),
+ dma_handle & ~PAGE_MASK, size, direction);
}
static void mips_dma_sync_sg_for_cpu(struct device *dev,
@@ -260,8 +282,8 @@ static void mips_dma_sync_sg_for_cpu(struct device *dev,
/* Make sure that gcc doesn't leave the empty loop body. */
for (i = 0; i < nelems; i++, sg++) {
if (cpu_is_noncoherent_r10000(dev))
- __dma_sync((unsigned long)page_address(sg_page(sg)),
- sg->length, direction);
+ __dma_sync(sg_page(sg), sg->offset, sg->length,
+ direction);
}
}
@@ -273,8 +295,8 @@ static void mips_dma_sync_sg_for_device(struct device *dev,
/* Make sure that gcc doesn't leave the empty loop body. */
for (i = 0; i < nelems; i++, sg++) {
if (!plat_device_is_coherent(dev))
- __dma_sync((unsigned long)page_address(sg_page(sg)),
- sg->length, direction);
+ __dma_sync(sg_page(sg), sg->offset, sg->length,
+ direction);
}
}
@@ -295,7 +317,7 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
plat_extra_sync_for_device(dev);
if (!plat_device_is_coherent(dev))
- __dma_sync((unsigned long)vaddr, size, direction);
+ __dma_sync_virtual(vaddr, size, direction);
}
EXPORT_SYMBOL(dma_cache_sync);
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 137ee76a0045..937cf3368164 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -145,7 +145,7 @@ good_area:
* the fault.
*/
fault = handle_mm_fault(mm, vma, address, write ? FAULT_FLAG_WRITE : 0);
- perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
@@ -154,12 +154,10 @@ good_area:
BUG();
}
if (fault & VM_FAULT_MAJOR) {
- perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ,
- 1, 0, regs, address);
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address);
tsk->maj_flt++;
} else {
- perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN,
- 1, 0, regs, address);
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
tsk->min_flt++;
}
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 1aadeb42c5a5..b7ebc4fa89bc 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -277,11 +277,11 @@ void __init fixrange_init(unsigned long start, unsigned long end,
k = __pmd_offset(vaddr);
pgd = pgd_base + i;
- for ( ; (i < PTRS_PER_PGD) && (vaddr != end); pgd++, i++) {
+ for ( ; (i < PTRS_PER_PGD) && (vaddr < end); pgd++, i++) {
pud = (pud_t *)pgd;
- for ( ; (j < PTRS_PER_PUD) && (vaddr != end); pud++, j++) {
+ for ( ; (j < PTRS_PER_PUD) && (vaddr < end); pud++, j++) {
pmd = (pmd_t *)pud;
- for (; (k < PTRS_PER_PMD) && (vaddr != end); pmd++, k++) {
+ for (; (k < PTRS_PER_PMD) && (vaddr < end); pmd++, k++) {
if (pmd_none(*pmd)) {
pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
set_pmd(pmd, __pmd((unsigned long)pte));
@@ -368,7 +368,7 @@ void __init mem_init(void)
#ifdef CONFIG_DISCONTIGMEM
#error "CONFIG_HIGHMEM and CONFIG_DISCONTIGMEM dont work together yet"
#endif
- max_mapnr = highend_pfn;
+ max_mapnr = highend_pfn ? highend_pfn : max_low_pfn;
#else
max_mapnr = max_low_pfn;
#endif
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index ae3c20a9556e..9ff5d0fac556 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -10,6 +10,7 @@
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/module.h>
+#include <linux/personality.h>
#include <linux/random.h>
#include <linux/sched.h>
@@ -17,21 +18,65 @@ unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */
EXPORT_SYMBOL(shm_align_mask);
+/* gap between mmap and stack */
+#define MIN_GAP (128*1024*1024UL)
+#define MAX_GAP ((TASK_SIZE)/6*5)
+
+static int mmap_is_legacy(void)
+{
+ if (current->personality & ADDR_COMPAT_LAYOUT)
+ return 1;
+
+ if (rlimit(RLIMIT_STACK) == RLIM_INFINITY)
+ return 1;
+
+ return sysctl_legacy_va_layout;
+}
+
+static unsigned long mmap_base(unsigned long rnd)
+{
+ unsigned long gap = rlimit(RLIMIT_STACK);
+
+ if (gap < MIN_GAP)
+ gap = MIN_GAP;
+ else if (gap > MAX_GAP)
+ gap = MAX_GAP;
+
+ return PAGE_ALIGN(TASK_SIZE - gap - rnd);
+}
+
+static inline unsigned long COLOUR_ALIGN_DOWN(unsigned long addr,
+ unsigned long pgoff)
+{
+ unsigned long base = addr & ~shm_align_mask;
+ unsigned long off = (pgoff << PAGE_SHIFT) & shm_align_mask;
+
+ if (base + off <= addr)
+ return base + off;
+
+ return base - off;
+}
+
#define COLOUR_ALIGN(addr,pgoff) \
((((addr) + shm_align_mask) & ~shm_align_mask) + \
(((pgoff) << PAGE_SHIFT) & shm_align_mask))
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
- unsigned long len, unsigned long pgoff, unsigned long flags)
+enum mmap_allocation_direction {UP, DOWN};
+
+static unsigned long arch_get_unmapped_area_foo(struct file *filp,
+ unsigned long addr0, unsigned long len, unsigned long pgoff,
+ unsigned long flags, enum mmap_allocation_direction dir)
{
- struct vm_area_struct * vmm;
+ struct mm_struct *mm = current->mm;
+ struct vm_area_struct *vma;
+ unsigned long addr = addr0;
int do_color_align;
- if (len > TASK_SIZE)
+ if (unlikely(len > TASK_SIZE))
return -ENOMEM;
if (flags & MAP_FIXED) {
- /* Even MAP_FIXED mappings must reside within TASK_SIZE. */
+ /* Even MAP_FIXED mappings must reside within TASK_SIZE */
if (TASK_SIZE - len < addr)
return -EINVAL;
@@ -48,34 +93,130 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
do_color_align = 0;
if (filp || (flags & MAP_SHARED))
do_color_align = 1;
+
+ /* requesting a specific address */
if (addr) {
if (do_color_align)
addr = COLOUR_ALIGN(addr, pgoff);
else
addr = PAGE_ALIGN(addr);
- vmm = find_vma(current->mm, addr);
+
+ vma = find_vma(mm, addr);
if (TASK_SIZE - len >= addr &&
- (!vmm || addr + len <= vmm->vm_start))
+ (!vma || addr + len <= vma->vm_start))
return addr;
}
- addr = current->mm->mmap_base;
- if (do_color_align)
- addr = COLOUR_ALIGN(addr, pgoff);
- else
- addr = PAGE_ALIGN(addr);
- for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
- /* At this point: (!vmm || addr < vmm->vm_end). */
- if (TASK_SIZE - len < addr)
- return -ENOMEM;
- if (!vmm || addr + len <= vmm->vm_start)
- return addr;
- addr = vmm->vm_end;
+ if (dir == UP) {
+ addr = mm->mmap_base;
+ if (do_color_align)
+ addr = COLOUR_ALIGN(addr, pgoff);
+ else
+ addr = PAGE_ALIGN(addr);
+
+ for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
+ /* At this point: (!vma || addr < vma->vm_end). */
+ if (TASK_SIZE - len < addr)
+ return -ENOMEM;
+ if (!vma || addr + len <= vma->vm_start)
+ return addr;
+ addr = vma->vm_end;
+ if (do_color_align)
+ addr = COLOUR_ALIGN(addr, pgoff);
+ }
+ } else {
+ /* check if free_area_cache is useful for us */
+ if (len <= mm->cached_hole_size) {
+ mm->cached_hole_size = 0;
+ mm->free_area_cache = mm->mmap_base;
+ }
+
+ /* either no address requested or can't fit in requested address hole */
+ addr = mm->free_area_cache;
+ if (do_color_align) {
+ unsigned long base =
+ COLOUR_ALIGN_DOWN(addr - len, pgoff);
+
+ addr = base + len;
+ }
+
+ /* make sure it can fit in the remaining address space */
+ if (likely(addr > len)) {
+ vma = find_vma(mm, addr - len);
+ if (!vma || addr <= vma->vm_start) {
+ /* remember the address as a hint for next time */
+ return mm->free_area_cache = addr-len;
+ }
+ }
+
+ if (unlikely(mm->mmap_base < len))
+ goto bottomup;
+
+ addr = mm->mmap_base-len;
if (do_color_align)
- addr = COLOUR_ALIGN(addr, pgoff);
+ addr = COLOUR_ALIGN_DOWN(addr, pgoff);
+
+ do {
+ /*
+ * Lookup failure means no vma is above this address,
+ * else if new region fits below vma->vm_start,
+ * return with success:
+ */
+ vma = find_vma(mm, addr);
+ if (likely(!vma || addr+len <= vma->vm_start)) {
+ /* remember the address as a hint for next time */
+ return mm->free_area_cache = addr;
+ }
+
+ /* remember the largest hole we saw so far */
+ if (addr + mm->cached_hole_size < vma->vm_start)
+ mm->cached_hole_size = vma->vm_start - addr;
+
+ /* try just below the current vma->vm_start */
+ addr = vma->vm_start-len;
+ if (do_color_align)
+ addr = COLOUR_ALIGN_DOWN(addr, pgoff);
+ } while (likely(len < vma->vm_start));
+
+bottomup:
+ /*
+ * A failed mmap() very likely causes application failure,
+ * so fall back to the bottom-up function here. This scenario
+ * can happen with large stack limits and large mmap()
+ * allocations.
+ */
+ mm->cached_hole_size = ~0UL;
+ mm->free_area_cache = TASK_UNMAPPED_BASE;
+ addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
+ /*
+ * Restore the topdown base:
+ */
+ mm->free_area_cache = mm->mmap_base;
+ mm->cached_hole_size = ~0UL;
+
+ return addr;
}
}
+unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr0,
+ unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+ return arch_get_unmapped_area_foo(filp,
+ addr0, len, pgoff, flags, UP);
+}
+
+/*
+ * There is no need to export this but sched.h declares the function as
+ * extern so making it static here results in an error.
+ */
+unsigned long arch_get_unmapped_area_topdown(struct file *filp,
+ unsigned long addr0, unsigned long len, unsigned long pgoff,
+ unsigned long flags)
+{
+ return arch_get_unmapped_area_foo(filp,
+ addr0, len, pgoff, flags, DOWN);
+}
+
void arch_pick_mmap_layout(struct mm_struct *mm)
{
unsigned long random_factor = 0UL;
@@ -89,9 +230,15 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
random_factor &= 0xffffffful;
}
- mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
- mm->get_unmapped_area = arch_get_unmapped_area;
- mm->unmap_area = arch_unmap_area;
+ if (mmap_is_legacy()) {
+ mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
+ mm->get_unmapped_area = arch_get_unmapped_area;
+ mm->unmap_area = arch_unmap_area;
+ } else {
+ mm->mmap_base = mmap_base(random_factor);
+ mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ mm->unmap_area = arch_unmap_area_topdown;
+ }
}
static inline unsigned long brk_rnd(void)
diff --git a/arch/mips/mm/pgtable-32.c b/arch/mips/mm/pgtable-32.c
index 575e4019227b..adc6911ba748 100644
--- a/arch/mips/mm/pgtable-32.c
+++ b/arch/mips/mm/pgtable-32.c
@@ -52,7 +52,7 @@ void __init pagetable_init(void)
* Fixed mappings:
*/
vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
- fixrange_init(vaddr, 0, pgd_base);
+ fixrange_init(vaddr, vaddr + FIXADDR_SIZE, pgd_base);
#ifdef CONFIG_HIGHMEM
/*
diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c
index 78eaa4f0b0ec..cda4e300eb0a 100644
--- a/arch/mips/mm/pgtable-64.c
+++ b/arch/mips/mm/pgtable-64.c
@@ -76,5 +76,5 @@ void __init pagetable_init(void)
* Fixed mappings:
*/
vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
- fixrange_init(vaddr, 0, pgd_base);
+ fixrange_init(vaddr, vaddr + FIXADDR_SIZE, pgd_base);
}
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 424ed4b92e6d..b6e1cff50667 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -42,6 +42,18 @@
extern void tlb_do_page_fault_0(void);
extern void tlb_do_page_fault_1(void);
+struct work_registers {
+ int r1;
+ int r2;
+ int r3;
+};
+
+struct tlb_reg_save {
+ unsigned long a;
+ unsigned long b;
+} ____cacheline_aligned_in_smp;
+
+static struct tlb_reg_save handler_reg_save[NR_CPUS];
static inline int r45k_bvahwbug(void)
{
@@ -248,6 +260,73 @@ static int scratch_reg __cpuinitdata;
static int pgd_reg __cpuinitdata;
enum vmalloc64_mode {not_refill, refill_scratch, refill_noscratch};
+static struct work_registers __cpuinit build_get_work_registers(u32 **p)
+{
+ struct work_registers r;
+
+ int smp_processor_id_reg;
+ int smp_processor_id_sel;
+ int smp_processor_id_shift;
+
+ if (scratch_reg > 0) {
+ /* Save in CPU local C0_KScratch? */
+ UASM_i_MTC0(p, 1, 31, scratch_reg);
+ r.r1 = K0;
+ r.r2 = K1;
+ r.r3 = 1;
+ return r;
+ }
+
+ if (num_possible_cpus() > 1) {
+#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
+ smp_processor_id_shift = 51;
+ smp_processor_id_reg = 20; /* XContext */
+ smp_processor_id_sel = 0;
+#else
+# ifdef CONFIG_32BIT
+ smp_processor_id_shift = 25;
+ smp_processor_id_reg = 4; /* Context */
+ smp_processor_id_sel = 0;
+# endif
+# ifdef CONFIG_64BIT
+ smp_processor_id_shift = 26;
+ smp_processor_id_reg = 4; /* Context */
+ smp_processor_id_sel = 0;
+# endif
+#endif
+ /* Get smp_processor_id */
+ UASM_i_MFC0(p, K0, smp_processor_id_reg, smp_processor_id_sel);
+ UASM_i_SRL_SAFE(p, K0, K0, smp_processor_id_shift);
+
+ /* handler_reg_save index in K0 */
+ UASM_i_SLL(p, K0, K0, ilog2(sizeof(struct tlb_reg_save)));
+
+ UASM_i_LA(p, K1, (long)&handler_reg_save);
+ UASM_i_ADDU(p, K0, K0, K1);
+ } else {
+ UASM_i_LA(p, K0, (long)&handler_reg_save);
+ }
+ /* K0 now points to save area, save $1 and $2 */
+ UASM_i_SW(p, 1, offsetof(struct tlb_reg_save, a), K0);
+ UASM_i_SW(p, 2, offsetof(struct tlb_reg_save, b), K0);
+
+ r.r1 = K1;
+ r.r2 = 1;
+ r.r3 = 2;
+ return r;
+}
+
+static void __cpuinit build_restore_work_registers(u32 **p)
+{
+ if (scratch_reg > 0) {
+ UASM_i_MFC0(p, 1, 31, scratch_reg);
+ return;
+ }
+ /* K0 already points to save area, restore $1 and $2 */
+ UASM_i_LW(p, 1, offsetof(struct tlb_reg_save, a), K0);
+ UASM_i_LW(p, 2, offsetof(struct tlb_reg_save, b), K0);
+}
+
#ifndef CONFIG_MIPS_PGD_C0_CONTEXT
/*
@@ -1160,9 +1239,6 @@ static void __cpuinit build_r4000_tlb_refill_handler(void)
memset(relocs, 0, sizeof(relocs));
memset(final_handler, 0, sizeof(final_handler));
- if (scratch_reg == 0)
- scratch_reg = allocate_kscratch();
-
if ((scratch_reg > 0 || scratchpad_available()) && use_bbit_insns()) {
htlb_info = build_fast_tlb_refill_handler(&p, &l, &r, K0, K1,
scratch_reg);
@@ -1462,22 +1538,28 @@ iPTE_SW(u32 **p, struct uasm_reloc **r, unsigned int pte, unsigned int ptr,
*/
static void __cpuinit
build_pte_present(u32 **p, struct uasm_reloc **r,
- unsigned int pte, unsigned int ptr, enum label_id lid)
+ int pte, int ptr, int scratch, enum label_id lid)
{
+ int t = scratch >= 0 ? scratch : pte;
+
if (kernel_uses_smartmips_rixi) {
if (use_bbit_insns()) {
uasm_il_bbit0(p, r, pte, ilog2(_PAGE_PRESENT), lid);
uasm_i_nop(p);
} else {
- uasm_i_andi(p, pte, pte, _PAGE_PRESENT);
- uasm_il_beqz(p, r, pte, lid);
- iPTE_LW(p, pte, ptr);
+ uasm_i_andi(p, t, pte, _PAGE_PRESENT);
+ uasm_il_beqz(p, r, t, lid);
+ if (pte == t)
+ /* You lose the SMP race :-(*/
+ iPTE_LW(p, pte, ptr);
}
} else {
- uasm_i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_READ);
- uasm_i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_READ);
- uasm_il_bnez(p, r, pte, lid);
- iPTE_LW(p, pte, ptr);
+ uasm_i_andi(p, t, pte, _PAGE_PRESENT | _PAGE_READ);
+ uasm_i_xori(p, t, t, _PAGE_PRESENT | _PAGE_READ);
+ uasm_il_bnez(p, r, t, lid);
+ if (pte == t)
+ /* You lose the SMP race :-(*/
+ iPTE_LW(p, pte, ptr);
}
}
@@ -1497,19 +1579,19 @@ build_make_valid(u32 **p, struct uasm_reloc **r, unsigned int pte,
*/
static void __cpuinit
build_pte_writable(u32 **p, struct uasm_reloc **r,
- unsigned int pte, unsigned int ptr, enum label_id lid)
+ unsigned int pte, unsigned int ptr, int scratch,
+ enum label_id lid)
{
- if (use_bbit_insns()) {
- uasm_il_bbit0(p, r, pte, ilog2(_PAGE_PRESENT), lid);
- uasm_i_nop(p);
- uasm_il_bbit0(p, r, pte, ilog2(_PAGE_WRITE), lid);
- uasm_i_nop(p);
- } else {
- uasm_i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE);
- uasm_i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE);
- uasm_il_bnez(p, r, pte, lid);
+ int t = scratch >= 0 ? scratch : pte;
+
+ uasm_i_andi(p, t, pte, _PAGE_PRESENT | _PAGE_WRITE);
+ uasm_i_xori(p, t, t, _PAGE_PRESENT | _PAGE_WRITE);
+ uasm_il_bnez(p, r, t, lid);
+ if (pte == t)
+ /* You lose the SMP race :-(*/
iPTE_LW(p, pte, ptr);
- }
+ else
+ uasm_i_nop(p);
}
/* Make PTE writable, update software status bits as well, then store
@@ -1531,15 +1613,19 @@ build_make_write(u32 **p, struct uasm_reloc **r, unsigned int pte,
*/
static void __cpuinit
build_pte_modifiable(u32 **p, struct uasm_reloc **r,
- unsigned int pte, unsigned int ptr, enum label_id lid)
+ unsigned int pte, unsigned int ptr, int scratch,
+ enum label_id lid)
{
if (use_bbit_insns()) {
uasm_il_bbit0(p, r, pte, ilog2(_PAGE_WRITE), lid);
uasm_i_nop(p);
} else {
- uasm_i_andi(p, pte, pte, _PAGE_WRITE);
- uasm_il_beqz(p, r, pte, lid);
- iPTE_LW(p, pte, ptr);
+ int t = scratch >= 0 ? scratch : pte;
+ uasm_i_andi(p, t, pte, _PAGE_WRITE);
+ uasm_il_beqz(p, r, t, lid);
+ if (pte == t)
+ /* You lose the SMP race :-(*/
+ iPTE_LW(p, pte, ptr);
}
}
@@ -1619,7 +1705,7 @@ static void __cpuinit build_r3000_tlb_load_handler(void)
memset(relocs, 0, sizeof(relocs));
build_r3000_tlbchange_handler_head(&p, K0, K1);
- build_pte_present(&p, &r, K0, K1, label_nopage_tlbl);
+ build_pte_present(&p, &r, K0, K1, -1, label_nopage_tlbl);
uasm_i_nop(&p); /* load delay */
build_make_valid(&p, &r, K0, K1);
build_r3000_tlb_reload_write(&p, &l, &r, K0, K1);
@@ -1649,7 +1735,7 @@ static void __cpuinit build_r3000_tlb_store_handler(void)
memset(relocs, 0, sizeof(relocs));
build_r3000_tlbchange_handler_head(&p, K0, K1);
- build_pte_writable(&p, &r, K0, K1, label_nopage_tlbs);
+ build_pte_writable(&p, &r, K0, K1, -1, label_nopage_tlbs);
uasm_i_nop(&p); /* load delay */
build_make_write(&p, &r, K0, K1);
build_r3000_tlb_reload_write(&p, &l, &r, K0, K1);
@@ -1673,13 +1759,14 @@ static void __cpuinit build_r3000_tlb_modify_handler(void)
u32 *p = handle_tlbm;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
+ struct work_registers wr;
memset(handle_tlbm, 0, sizeof(handle_tlbm));
memset(labels, 0, sizeof(labels));
memset(relocs, 0, sizeof(relocs));
build_r3000_tlbchange_handler_head(&p, K0, K1);
- build_pte_modifiable(&p, &r, K0, K1, label_nopage_tlbm);
+ build_pte_modifiable(&p, &r, wr.r1, wr.r2, wr.r3, label_nopage_tlbm);
uasm_i_nop(&p); /* load delay */
build_make_write(&p, &r, K0, K1);
build_r3000_pte_reload_tlbwi(&p, K0, K1);
@@ -1702,15 +1789,16 @@ static void __cpuinit build_r3000_tlb_modify_handler(void)
/*
* R4000 style TLB load/store/modify handlers.
*/
-static void __cpuinit
+static struct work_registers __cpuinit
build_r4000_tlbchange_handler_head(u32 **p, struct uasm_label **l,
- struct uasm_reloc **r, unsigned int pte,
- unsigned int ptr)
+ struct uasm_reloc **r)
{
+ struct work_registers wr = build_get_work_registers(p);
+
#ifdef CONFIG_64BIT
- build_get_pmde64(p, l, r, pte, ptr); /* get pmd in ptr */
+ build_get_pmde64(p, l, r, wr.r1, wr.r2); /* get pmd in ptr */
#else
- build_get_pgde32(p, pte, ptr); /* get pgd in ptr */
+ build_get_pgde32(p, wr.r1, wr.r2); /* get pgd in ptr */
#endif
#ifdef CONFIG_HUGETLB_PAGE
@@ -1719,21 +1807,22 @@ build_r4000_tlbchange_handler_head(u32 **p, struct uasm_label **l,
* instead contains the tlb pte. Check the PAGE_HUGE bit and
* see if we need to jump to huge tlb processing.
*/
- build_is_huge_pte(p, r, pte, ptr, label_tlb_huge_update);
+ build_is_huge_pte(p, r, wr.r1, wr.r2, label_tlb_huge_update);
#endif
- UASM_i_MFC0(p, pte, C0_BADVADDR);
- UASM_i_LW(p, ptr, 0, ptr);
- UASM_i_SRL(p, pte, pte, PAGE_SHIFT + PTE_ORDER - PTE_T_LOG2);
- uasm_i_andi(p, pte, pte, (PTRS_PER_PTE - 1) << PTE_T_LOG2);
- UASM_i_ADDU(p, ptr, ptr, pte);
+ UASM_i_MFC0(p, wr.r1, C0_BADVADDR);
+ UASM_i_LW(p, wr.r2, 0, wr.r2);
+ UASM_i_SRL(p, wr.r1, wr.r1, PAGE_SHIFT + PTE_ORDER - PTE_T_LOG2);
+ uasm_i_andi(p, wr.r1, wr.r1, (PTRS_PER_PTE - 1) << PTE_T_LOG2);
+ UASM_i_ADDU(p, wr.r2, wr.r2, wr.r1);
#ifdef CONFIG_SMP
uasm_l_smp_pgtable_change(l, *p);
#endif
- iPTE_LW(p, pte, ptr); /* get even pte */
+ iPTE_LW(p, wr.r1, wr.r2); /* get even pte */
if (!m4kc_tlbp_war())
build_tlb_probe_entry(p);
+ return wr;
}
static void __cpuinit
@@ -1746,6 +1835,7 @@ build_r4000_tlbchange_handler_tail(u32 **p, struct uasm_label **l,
build_update_entries(p, tmp, ptr);
build_tlb_write_entry(p, l, r, tlb_indexed);
uasm_l_leave(l, *p);
+ build_restore_work_registers(p);
uasm_i_eret(p); /* return from trap */
#ifdef CONFIG_64BIT
@@ -1758,6 +1848,7 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
u32 *p = handle_tlbl;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
+ struct work_registers wr;
memset(handle_tlbl, 0, sizeof(handle_tlbl));
memset(labels, 0, sizeof(labels));
@@ -1777,8 +1868,8 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
/* No need for uasm_i_nop */
}
- build_r4000_tlbchange_handler_head(&p, &l, &r, K0, K1);
- build_pte_present(&p, &r, K0, K1, label_nopage_tlbl);
+ wr = build_r4000_tlbchange_handler_head(&p, &l, &r);
+ build_pte_present(&p, &r, wr.r1, wr.r2, wr.r3, label_nopage_tlbl);
if (m4kc_tlbp_war())
build_tlb_probe_entry(&p);
@@ -1788,44 +1879,43 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
* have triggered it. Skip the expensive test..
*/
if (use_bbit_insns()) {
- uasm_il_bbit0(&p, &r, K0, ilog2(_PAGE_VALID),
+ uasm_il_bbit0(&p, &r, wr.r1, ilog2(_PAGE_VALID),
label_tlbl_goaround1);
} else {
- uasm_i_andi(&p, K0, K0, _PAGE_VALID);
- uasm_il_beqz(&p, &r, K0, label_tlbl_goaround1);
+ uasm_i_andi(&p, wr.r3, wr.r1, _PAGE_VALID);
+ uasm_il_beqz(&p, &r, wr.r3, label_tlbl_goaround1);
}
uasm_i_nop(&p);
uasm_i_tlbr(&p);
/* Examine entrylo 0 or 1 based on ptr. */
if (use_bbit_insns()) {
- uasm_i_bbit0(&p, K1, ilog2(sizeof(pte_t)), 8);
+ uasm_i_bbit0(&p, wr.r2, ilog2(sizeof(pte_t)), 8);
} else {
- uasm_i_andi(&p, K0, K1, sizeof(pte_t));
- uasm_i_beqz(&p, K0, 8);
+ uasm_i_andi(&p, wr.r3, wr.r2, sizeof(pte_t));
+ uasm_i_beqz(&p, wr.r3, 8);
}
-
- UASM_i_MFC0(&p, K0, C0_ENTRYLO0); /* load it in the delay slot*/
- UASM_i_MFC0(&p, K0, C0_ENTRYLO1); /* load it if ptr is odd */
+ /* load it in the delay slot*/
+ UASM_i_MFC0(&p, wr.r3, C0_ENTRYLO0);
+ /* load it if ptr is odd */
+ UASM_i_MFC0(&p, wr.r3, C0_ENTRYLO1);
/*
- * If the entryLo (now in K0) is valid (bit 1), RI or
+ * If the entryLo (now in wr.r3) is valid (bit 1), RI or
* XI must have triggered it.
*/
if (use_bbit_insns()) {
- uasm_il_bbit1(&p, &r, K0, 1, label_nopage_tlbl);
- /* Reload the PTE value */
- iPTE_LW(&p, K0, K1);
+ uasm_il_bbit1(&p, &r, wr.r3, 1, label_nopage_tlbl);
+ uasm_i_nop(&p);
uasm_l_tlbl_goaround1(&l, p);
} else {
- uasm_i_andi(&p, K0, K0, 2);
- uasm_il_bnez(&p, &r, K0, label_nopage_tlbl);
- uasm_l_tlbl_goaround1(&l, p);
- /* Reload the PTE value */
- iPTE_LW(&p, K0, K1);
+ uasm_i_andi(&p, wr.r3, wr.r3, 2);
+ uasm_il_bnez(&p, &r, wr.r3, label_nopage_tlbl);
+ uasm_i_nop(&p);
}
+ uasm_l_tlbl_goaround1(&l, p);
}
- build_make_valid(&p, &r, K0, K1);
- build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1);
+ build_make_valid(&p, &r, wr.r1, wr.r2);
+ build_r4000_tlbchange_handler_tail(&p, &l, &r, wr.r1, wr.r2);
#ifdef CONFIG_HUGETLB_PAGE
/*
@@ -1833,8 +1923,8 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
* spots a huge page.
*/
uasm_l_tlb_huge_update(&l, p);
- iPTE_LW(&p, K0, K1);
- build_pte_present(&p, &r, K0, K1, label_nopage_tlbl);
+ iPTE_LW(&p, wr.r1, wr.r2);
+ build_pte_present(&p, &r, wr.r1, wr.r2, wr.r3, label_nopage_tlbl);
build_tlb_probe_entry(&p);
if (kernel_uses_smartmips_rixi) {
@@ -1843,50 +1933,51 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
* have triggered it. Skip the expensive test..
*/
if (use_bbit_insns()) {
- uasm_il_bbit0(&p, &r, K0, ilog2(_PAGE_VALID),
+ uasm_il_bbit0(&p, &r, wr.r1, ilog2(_PAGE_VALID),
label_tlbl_goaround2);
} else {
- uasm_i_andi(&p, K0, K0, _PAGE_VALID);
- uasm_il_beqz(&p, &r, K0, label_tlbl_goaround2);
+ uasm_i_andi(&p, wr.r3, wr.r1, _PAGE_VALID);
+ uasm_il_beqz(&p, &r, wr.r3, label_tlbl_goaround2);
}
uasm_i_nop(&p);
uasm_i_tlbr(&p);
/* Examine entrylo 0 or 1 based on ptr. */
if (use_bbit_insns()) {
- uasm_i_bbit0(&p, K1, ilog2(sizeof(pte_t)), 8);
+ uasm_i_bbit0(&p, wr.r2, ilog2(sizeof(pte_t)), 8);
} else {
- uasm_i_andi(&p, K0, K1, sizeof(pte_t));
- uasm_i_beqz(&p, K0, 8);
+ uasm_i_andi(&p, wr.r3, wr.r2, sizeof(pte_t));
+ uasm_i_beqz(&p, wr.r3, 8);
}
- UASM_i_MFC0(&p, K0, C0_ENTRYLO0); /* load it in the delay slot*/
- UASM_i_MFC0(&p, K0, C0_ENTRYLO1); /* load it if ptr is odd */
+ /* load it in the delay slot*/
+ UASM_i_MFC0(&p, wr.r3, C0_ENTRYLO0);
+ /* load it if ptr is odd */
+ UASM_i_MFC0(&p, wr.r3, C0_ENTRYLO1);
/*
- * If the entryLo (now in K0) is valid (bit 1), RI or
+ * If the entryLo (now in wr.r3) is valid (bit 1), RI or
* XI must have triggered it.
*/
if (use_bbit_insns()) {
- uasm_il_bbit0(&p, &r, K0, 1, label_tlbl_goaround2);
+ uasm_il_bbit0(&p, &r, wr.r3, 1, label_tlbl_goaround2);
} else {
- uasm_i_andi(&p, K0, K0, 2);
- uasm_il_beqz(&p, &r, K0, label_tlbl_goaround2);
+ uasm_i_andi(&p, wr.r3, wr.r3, 2);
+ uasm_il_beqz(&p, &r, wr.r3, label_tlbl_goaround2);
}
- /* Reload the PTE value */
- iPTE_LW(&p, K0, K1);
/*
* We clobbered C0_PAGEMASK, restore it. On the other branch
* it is restored in build_huge_tlb_write_entry.
*/
- build_restore_pagemask(&p, &r, K0, label_nopage_tlbl, 0);
+ build_restore_pagemask(&p, &r, wr.r3, label_nopage_tlbl, 0);
uasm_l_tlbl_goaround2(&l, p);
}
- uasm_i_ori(&p, K0, K0, (_PAGE_ACCESSED | _PAGE_VALID));
- build_huge_handler_tail(&p, &r, &l, K0, K1);
+ uasm_i_ori(&p, wr.r1, wr.r1, (_PAGE_ACCESSED | _PAGE_VALID));
+ build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2);
#endif
uasm_l_nopage_tlbl(&l, p);
+ build_restore_work_registers(&p);
uasm_i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff);
uasm_i_nop(&p);
@@ -1905,17 +1996,18 @@ static void __cpuinit build_r4000_tlb_store_handler(void)
u32 *p = handle_tlbs;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
+ struct work_registers wr;
memset(handle_tlbs, 0, sizeof(handle_tlbs));
memset(labels, 0, sizeof(labels));
memset(relocs, 0, sizeof(relocs));
- build_r4000_tlbchange_handler_head(&p, &l, &r, K0, K1);
- build_pte_writable(&p, &r, K0, K1, label_nopage_tlbs);
+ wr = build_r4000_tlbchange_handler_head(&p, &l, &r);
+ build_pte_writable(&p, &r, wr.r1, wr.r2, wr.r3, label_nopage_tlbs);
if (m4kc_tlbp_war())
build_tlb_probe_entry(&p);
- build_make_write(&p, &r, K0, K1);
- build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1);
+ build_make_write(&p, &r, wr.r1, wr.r2);
+ build_r4000_tlbchange_handler_tail(&p, &l, &r, wr.r1, wr.r2);
#ifdef CONFIG_HUGETLB_PAGE
/*
@@ -1923,15 +2015,16 @@ static void __cpuinit build_r4000_tlb_store_handler(void)
* build_r4000_tlbchange_handler_head spots a huge page.
*/
uasm_l_tlb_huge_update(&l, p);
- iPTE_LW(&p, K0, K1);
- build_pte_writable(&p, &r, K0, K1, label_nopage_tlbs);
+ iPTE_LW(&p, wr.r1, wr.r2);
+ build_pte_writable(&p, &r, wr.r1, wr.r2, wr.r3, label_nopage_tlbs);
build_tlb_probe_entry(&p);
- uasm_i_ori(&p, K0, K0,
+ uasm_i_ori(&p, wr.r1, wr.r1,
_PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID | _PAGE_DIRTY);
- build_huge_handler_tail(&p, &r, &l, K0, K1);
+ build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2);
#endif
uasm_l_nopage_tlbs(&l, p);
+ build_restore_work_registers(&p);
uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
uasm_i_nop(&p);
@@ -1950,18 +2043,19 @@ static void __cpuinit build_r4000_tlb_modify_handler(void)
u32 *p = handle_tlbm;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
+ struct work_registers wr;
memset(handle_tlbm, 0, sizeof(handle_tlbm));
memset(labels, 0, sizeof(labels));
memset(relocs, 0, sizeof(relocs));
- build_r4000_tlbchange_handler_head(&p, &l, &r, K0, K1);
- build_pte_modifiable(&p, &r, K0, K1, label_nopage_tlbm);
+ wr = build_r4000_tlbchange_handler_head(&p, &l, &r);
+ build_pte_modifiable(&p, &r, wr.r1, wr.r2, wr.r3, label_nopage_tlbm);
if (m4kc_tlbp_war())
build_tlb_probe_entry(&p);
/* Present and writable bits set, set accessed and dirty bits. */
- build_make_write(&p, &r, K0, K1);
- build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1);
+ build_make_write(&p, &r, wr.r1, wr.r2);
+ build_r4000_tlbchange_handler_tail(&p, &l, &r, wr.r1, wr.r2);
#ifdef CONFIG_HUGETLB_PAGE
/*
@@ -1969,15 +2063,16 @@ static void __cpuinit build_r4000_tlb_modify_handler(void)
* build_r4000_tlbchange_handler_head spots a huge page.
*/
uasm_l_tlb_huge_update(&l, p);
- iPTE_LW(&p, K0, K1);
- build_pte_modifiable(&p, &r, K0, K1, label_nopage_tlbm);
+ iPTE_LW(&p, wr.r1, wr.r2);
+ build_pte_modifiable(&p, &r, wr.r1, wr.r2, wr.r3, label_nopage_tlbm);
build_tlb_probe_entry(&p);
- uasm_i_ori(&p, K0, K0,
+ uasm_i_ori(&p, wr.r1, wr.r1,
_PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID | _PAGE_DIRTY);
- build_huge_handler_tail(&p, &r, &l, K0, K1);
+ build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2);
#endif
uasm_l_nopage_tlbm(&l, p);
+ build_restore_work_registers(&p);
uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
uasm_i_nop(&p);
@@ -2036,6 +2131,7 @@ void __cpuinit build_tlb_refill_handler(void)
default:
if (!run_once) {
+ scratch_reg = allocate_kscratch();
#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
build_r4000_setup_pgd();
#endif
diff --git a/arch/mips/mti-malta/malta-init.c b/arch/mips/mti-malta/malta-init.c
index 31180c321a1a..4b988b9a30d5 100644
--- a/arch/mips/mti-malta/malta-init.c
+++ b/arch/mips/mti-malta/malta-init.c
@@ -28,6 +28,7 @@
#include <asm/io.h>
#include <asm/system.h>
#include <asm/cacheflush.h>
+#include <asm/smp-ops.h>
#include <asm/traps.h>
#include <asm/gcmpregs.h>
@@ -358,15 +359,14 @@ void __init prom_init(void)
#ifdef CONFIG_SERIAL_8250_CONSOLE
console_config();
#endif
-#ifdef CONFIG_MIPS_CMP
/* Early detection of CMP support */
if (gcmp_probe(GCMP_BASE_ADDR, GCMP_ADDRSPACE_SZ))
- register_smp_ops(&cmp_smp_ops);
- else
-#endif
-#ifdef CONFIG_MIPS_MT_SMP
- register_smp_ops(&vsmp_smp_ops);
-#endif
+ if (!register_cmp_smp_ops())
+ return;
+
+ if (!register_vsmp_smp_ops())
+ return;
+
#ifdef CONFIG_MIPS_MT_SMTC
register_smp_ops(&msmtc_smp_ops);
#endif
diff --git a/arch/mips/mti-malta/malta-smtc.c b/arch/mips/mti-malta/malta-smtc.c
index 49a38b09a488..1efc8c394486 100644
--- a/arch/mips/mti-malta/malta-smtc.c
+++ b/arch/mips/mti-malta/malta-smtc.c
@@ -152,7 +152,7 @@ int plat_set_irq_affinity(struct irq_data *d, const struct cpumask *affinity,
* runtime code can anyway deal with the null set
*/
printk(KERN_WARNING
- "IRQ affinity leaves no legal CPU for IRQ %d\n", irq);
+ "IRQ affinity leaves no legal CPU for IRQ %d\n", d->irq);
/* Do any generic SMTC IRQ affinity setup */
smtc_set_irq_affinity(d->irq, tmask);
diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c
index 1620b83cd13e..f8ee945ee411 100644
--- a/arch/mips/mti-malta/malta-time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -19,6 +19,7 @@
*/
#include <linux/types.h>
+#include <linux/i8253.h>
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/sched.h>
@@ -31,7 +32,6 @@
#include <asm/mipsregs.h>
#include <asm/mipsmtregs.h>
#include <asm/hardirq.h>
-#include <asm/i8253.h>
#include <asm/irq.h>
#include <asm/div64.h>
#include <asm/cpu.h>
diff --git a/arch/mips/netlogic/Platform b/arch/mips/netlogic/Platform
new file mode 100644
index 000000000000..f87c1640abb5
--- /dev/null
+++ b/arch/mips/netlogic/Platform
@@ -0,0 +1,11 @@
+#
+# NETLOGIC includes
+#
+cflags-$(CONFIG_NLM_COMMON) += -I$(srctree)/arch/mips/include/asm/mach-netlogic
+cflags-$(CONFIG_NLM_COMMON) += -I$(srctree)/arch/mips/include/asm/netlogic
+
+#
+# NETLOGIC XLR/XLS SoC, Simulator and boards
+#
+core-$(CONFIG_NLM_XLR) += arch/mips/netlogic/xlr/
+load-$(CONFIG_NLM_XLR_BOARD) += 0xffffffff84000000
diff --git a/arch/mips/netlogic/xlr/irq.c b/arch/mips/netlogic/xlr/irq.c
index 1446d58e364c..521bb7377eb0 100644
--- a/arch/mips/netlogic/xlr/irq.c
+++ b/arch/mips/netlogic/xlr/irq.c
@@ -209,7 +209,7 @@ void __init init_xlr_irqs(void)
irq_set_chip_and_handler(i, &xlr_pic, handle_level_irq);
else
irq_set_chip_and_handler(i, &nlm_cpu_intr,
- handle_level_irq);
+ handle_percpu_irq);
}
#ifdef CONFIG_SMP
irq_set_chip_and_handler(IRQ_IPI_SMP_FUNCTION, &nlm_cpu_intr,
diff --git a/arch/mips/netlogic/xlr/smp.c b/arch/mips/netlogic/xlr/smp.c
index b495a7f1433b..d842bce5c940 100644
--- a/arch/mips/netlogic/xlr/smp.c
+++ b/arch/mips/netlogic/xlr/smp.c
@@ -87,17 +87,7 @@ void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc)
/* IRQ_IPI_SMP_RESCHEDULE handler */
void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc)
{
- set_need_resched();
-}
-
-void nlm_common_ipi_handler(int irq, struct pt_regs *regs)
-{
- if (irq == IRQ_IPI_SMP_FUNCTION) {
- smp_call_function_interrupt();
- } else {
- /* Announce that we are for reschduling */
- set_need_resched();
- }
+ scheduler_ipi();
}
/*
@@ -122,6 +112,7 @@ void nlm_smp_finish(void)
#ifdef notyet
nlm_common_msgring_cpu_init();
#endif
+ local_irq_enable();
}
void nlm_cpus_done(void)
diff --git a/arch/mips/nxp/pnx8550/common/setup.c b/arch/mips/nxp/pnx8550/common/setup.c
index 64246c9c875c..71adac323323 100644
--- a/arch/mips/nxp/pnx8550/common/setup.c
+++ b/arch/mips/nxp/pnx8550/common/setup.c
@@ -140,6 +140,4 @@ void __init plat_mem_setup(void)
PNX8XXX_UART_LCR_8BIT;
ip3106_baud(UART_BASE, pnx8550_console_port) = 5;
}
-
- return;
}
diff --git a/arch/mips/oprofile/Makefile b/arch/mips/oprofile/Makefile
index 4b9d7044e26c..29f2f13eb31c 100644
--- a/arch/mips/oprofile/Makefile
+++ b/arch/mips/oprofile/Makefile
@@ -8,7 +8,7 @@ DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
oprofilefs.o oprofile_stats.o \
timer_int.o )
-oprofile-y := $(DRIVER_OBJS) common.o
+oprofile-y := $(DRIVER_OBJS) common.o backtrace.o
oprofile-$(CONFIG_CPU_MIPS32) += op_model_mipsxx.o
oprofile-$(CONFIG_CPU_MIPS64) += op_model_mipsxx.o
diff --git a/arch/mips/oprofile/backtrace.c b/arch/mips/oprofile/backtrace.c
new file mode 100644
index 000000000000..6854ed5097d2
--- /dev/null
+++ b/arch/mips/oprofile/backtrace.c
@@ -0,0 +1,175 @@
+#include <linux/oprofile.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/uaccess.h>
+#include <asm/ptrace.h>
+#include <asm/stacktrace.h>
+#include <linux/stacktrace.h>
+#include <linux/kernel.h>
+#include <asm/sections.h>
+#include <asm/inst.h>
+
+struct stackframe {
+ unsigned long sp;
+ unsigned long pc;
+ unsigned long ra;
+};
+
+static inline int get_mem(unsigned long addr, unsigned long *result)
+{
+ unsigned long *address = (unsigned long *) addr;
+ if (!access_ok(VERIFY_READ, addr, sizeof(unsigned long)))
+ return -1;
+ if (__copy_from_user_inatomic(result, address, sizeof(unsigned long)))
+ return -3;
+ return 0;
+}
+
+/*
+ * These two instruction helpers were taken from process.c
+ */
+static inline int is_ra_save_ins(union mips_instruction *ip)
+{
+ /* sw / sd $ra, offset($sp) */
+ return (ip->i_format.opcode == sw_op || ip->i_format.opcode == sd_op)
+ && ip->i_format.rs == 29 && ip->i_format.rt == 31;
+}
+
+static inline int is_sp_move_ins(union mips_instruction *ip)
+{
+ /* addiu/daddiu sp,sp,-imm */
+ if (ip->i_format.rs != 29 || ip->i_format.rt != 29)
+ return 0;
+ if (ip->i_format.opcode == addiu_op || ip->i_format.opcode == daddiu_op)
+ return 1;
+ return 0;
+}
+
+/*
+ * Looks for specific instructions that mark the end of a function.
+ * This usually means we ran into the code area of the previous function.
+ */
+static inline int is_end_of_function_marker(union mips_instruction *ip)
+{
+ /* jr ra */
+ if (ip->r_format.func == jr_op && ip->r_format.rs == 31)
+ return 1;
+ /* lui gp */
+ if (ip->i_format.opcode == lui_op && ip->i_format.rt == 28)
+ return 1;
+ return 0;
+}
+
+/*
+ * TODO for userspace stack unwinding:
+ * - handle cases where the stack is adjusted inside a function
+ * (generally doesn't happen)
+ * - find optimal value for max_instr_check
+ * - try to find a way to handle leaf functions
+ */
+
+static inline int unwind_user_frame(struct stackframe *old_frame,
+ const unsigned int max_instr_check)
+{
+ struct stackframe new_frame = *old_frame;
+ off_t ra_offset = 0;
+ size_t stack_size = 0;
+ unsigned long addr;
+
+ if (old_frame->pc == 0 || old_frame->sp == 0 || old_frame->ra == 0)
+ return -9;
+
+ for (addr = new_frame.pc; (addr + max_instr_check > new_frame.pc)
+ && (!ra_offset || !stack_size); --addr) {
+ union mips_instruction ip;
+
+ if (get_mem(addr, (unsigned long *) &ip))
+ return -11;
+
+ if (is_sp_move_ins(&ip)) {
+ int stack_adjustment = ip.i_format.simmediate;
+ if (stack_adjustment > 0)
+ /* This marks the end of the previous function,
+ which means we overran. */
+ break;
+ stack_size = (unsigned) stack_adjustment;
+ } else if (is_ra_save_ins(&ip)) {
+ int ra_slot = ip.i_format.simmediate;
+ if (ra_slot < 0)
+ /* This shouldn't happen. */
+ break;
+ ra_offset = ra_slot;
+ } else if (is_end_of_function_marker(&ip))
+ break;
+ }
+
+ if (!ra_offset || !stack_size)
+ return -1;
+
+ if (ra_offset) {
+ new_frame.ra = old_frame->sp + ra_offset;
+ if (get_mem(new_frame.ra, &(new_frame.ra)))
+ return -13;
+ }
+
+ if (stack_size) {
+ new_frame.sp = old_frame->sp + stack_size;
+ if (get_mem(new_frame.sp, &(new_frame.sp)))
+ return -14;
+ }
+
+ if (new_frame.sp > old_frame->sp)
+ return -2;
+
+ new_frame.pc = old_frame->ra;
+ *old_frame = new_frame;
+
+ return 0;
+}
+
+static inline void do_user_backtrace(unsigned long low_addr,
+ struct stackframe *frame,
+ unsigned int depth)
+{
+ const unsigned int max_instr_check = 512;
+ const unsigned long high_addr = low_addr + THREAD_SIZE;
+
+ while (depth-- && !unwind_user_frame(frame, max_instr_check)) {
+ oprofile_add_trace(frame->ra);
+ if (frame->sp < low_addr || frame->sp > high_addr)
+ break;
+ }
+}
+
+#ifndef CONFIG_KALLSYMS
+static inline void do_kernel_backtrace(unsigned long low_addr,
+ struct stackframe *frame,
+ unsigned int depth) { }
+#else
+static inline void do_kernel_backtrace(unsigned long low_addr,
+ struct stackframe *frame,
+ unsigned int depth)
+{
+ while (depth-- && frame->pc) {
+ frame->pc = unwind_stack_by_address(low_addr,
+ &(frame->sp),
+ frame->pc,
+ &(frame->ra));
+ oprofile_add_trace(frame->ra);
+ }
+}
+#endif
+
+void notrace op_mips_backtrace(struct pt_regs *const regs, unsigned int depth)
+{
+ struct stackframe frame = { .sp = regs->regs[29],
+ .pc = regs->cp0_epc,
+ .ra = regs->regs[31] };
+ const int userspace = user_mode(regs);
+ const unsigned long low_addr = ALIGN(frame.sp, THREAD_SIZE);
+
+ if (userspace)
+ do_user_backtrace(low_addr, &frame, depth);
+ else
+ do_kernel_backtrace(low_addr, &frame, depth);
+}
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index f9eb1aba6345..d1f2d4c52d42 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -115,6 +115,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
ops->start = op_mips_start;
ops->stop = op_mips_stop;
ops->cpu_type = lmodel->cpu_type;
+ ops->backtrace = op_mips_backtrace;
printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
lmodel->cpu_type);
diff --git a/arch/mips/oprofile/op_impl.h b/arch/mips/oprofile/op_impl.h
index f04b54fb37d1..7c2da27ece04 100644
--- a/arch/mips/oprofile/op_impl.h
+++ b/arch/mips/oprofile/op_impl.h
@@ -36,4 +36,6 @@ struct op_mips_model {
unsigned char num_counters;
};
+void op_mips_backtrace(struct pt_regs * const regs, unsigned int depth);
+
#endif
diff --git a/arch/mips/pci/ops-nile4.c b/arch/mips/pci/ops-nile4.c
index b7f0fb0210f4..99929cf88419 100644
--- a/arch/mips/pci/ops-nile4.c
+++ b/arch/mips/pci/ops-nile4.c
@@ -4,7 +4,6 @@
#include <asm/bootinfo.h>
#include <asm/lasat/lasat.h>
-#include <asm/gt64120.h>
#include <asm/nile4.h>
#define PCI_ACCESS_READ 0
diff --git a/arch/mips/pci/pci-rc32434.c b/arch/mips/pci/pci-rc32434.c
index f31218e17d3c..764362ce5e40 100644
--- a/arch/mips/pci/pci-rc32434.c
+++ b/arch/mips/pci/pci-rc32434.c
@@ -215,7 +215,7 @@ static int __init rc32434_pci_init(void)
rc32434_pcibridge_init();
io_map_base = ioremap(rc32434_res_pci_io1.start,
- rc32434_res_pci_io1.end - rc32434_res_pci_io1.start + 1);
+ resource_size(&rcrc32434_res_pci_io1));
if (!io_map_base)
return -ENOMEM;
diff --git a/arch/mips/pci/pci-vr41xx.c b/arch/mips/pci/pci-vr41xx.c
index 56525711f8b7..444b8d8004ad 100644
--- a/arch/mips/pci/pci-vr41xx.c
+++ b/arch/mips/pci/pci-vr41xx.c
@@ -305,7 +305,7 @@ static int __init vr41xx_pciu_init(void)
struct resource *res = vr41xx_pci_controller.io_resource;
master = setup->master_io;
io_map_base = ioremap(master->bus_base_address,
- res->end - res->start + 1);
+ resource_size(res));
if (!io_map_base)
return -EBUSY;
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_setup.c b/arch/mips/pmc-sierra/msp71xx/msp_setup.c
index 2413ea67877e..0abfbe04ffc9 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_setup.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_setup.c
@@ -228,13 +228,11 @@ void __init prom_init(void)
*/
msp_serial_setup();
-#ifdef CONFIG_MIPS_MT_SMP
- register_smp_ops(&vsmp_smp_ops);
-#endif
-
+ if (register_vsmp_smp_ops()) {
#ifdef CONFIG_MIPS_MT_SMTC
- register_smp_ops(&msp_smtc_smp_ops);
+ register_smp_ops(&msp_smtc_smp_ops);
#endif
+ }
#ifdef CONFIG_PMCTWILED
/*
diff --git a/arch/mips/pnx8550/common/setup.c b/arch/mips/pnx8550/common/setup.c
index 43cb3945fdbf..fccd6b0c6d3f 100644
--- a/arch/mips/pnx8550/common/setup.c
+++ b/arch/mips/pnx8550/common/setup.c
@@ -139,6 +139,4 @@ void __init plat_mem_setup(void)
PNX8XXX_UART_LCR_8BIT;
ip3106_baud(UART_BASE, pnx8550_console_port) = 5;
}
-
- return;
}
diff --git a/arch/mips/powertv/asic/asic_devices.c b/arch/mips/powertv/asic/asic_devices.c
index e56fa61b3991..bce1872249ba 100644
--- a/arch/mips/powertv/asic/asic_devices.c
+++ b/arch/mips/powertv/asic/asic_devices.c
@@ -394,23 +394,21 @@ void __init platform_alloc_bootmem(void)
/* Loop through looking for resources that want a particular address */
for (i = 0; gp_resources[i].flags != 0; i++) {
- int size = gp_resources[i].end - gp_resources[i].start + 1;
+ int size = resource_size(&gp_resources[i]);
if ((gp_resources[i].start != 0) &&
((gp_resources[i].flags & IORESOURCE_MEM) != 0)) {
reserve_bootmem(dma_to_phys(gp_resources[i].start),
size, 0);
- total += gp_resources[i].end -
- gp_resources[i].start + 1;
+ total += resource_size(&gp_resources[i]);
pr_info("reserve resource %s at %08x (%u bytes)\n",
gp_resources[i].name, gp_resources[i].start,
- gp_resources[i].end -
- gp_resources[i].start + 1);
+ resource_size(&gp_resources[i]));
}
}
/* Loop through assigning addresses for those that are left */
for (i = 0; gp_resources[i].flags != 0; i++) {
- int size = gp_resources[i].end - gp_resources[i].start + 1;
+ int size = resource_size(&gp_resources[i]);
if ((gp_resources[i].start == 0) &&
((gp_resources[i].flags & IORESOURCE_MEM) != 0)) {
void *mem = alloc_bootmem_pages(size);
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index 041fc1afc3f4..a969eb826634 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -251,28 +251,22 @@ static struct platform_device *rb532_devs[] = {
static void __init parse_mac_addr(char *macstr)
{
- int i, j;
- unsigned char result, value;
+ int i, h, l;
for (i = 0; i < 6; i++) {
- result = 0;
-
if (i != 5 && *(macstr + 2) != ':')
return;
- for (j = 0; j < 2; j++) {
- if (isxdigit(*macstr)
- && (value =
- isdigit(*macstr) ? *macstr -
- '0' : toupper(*macstr) - 'A' + 10) < 16) {
- result = result * 16 + value;
- macstr++;
- } else
- return;
- }
+ h = hex_to_bin(*macstr++);
+ if (h == -1)
+ return;
+
+ l = hex_to_bin(*macstr++);
+ if (l == -1)
+ return;
macstr++;
- korina_dev0_data.mac[i] = result;
+ korina_dev0_data.mac[i] = (h << 4) + l;
}
}
diff --git a/arch/mips/sgi-ip22/ip22-time.c b/arch/mips/sgi-ip22/ip22-time.c
index 1a94c9894188..607192449335 100644
--- a/arch/mips/sgi-ip22/ip22-time.c
+++ b/arch/mips/sgi-ip22/ip22-time.c
@@ -10,6 +10,7 @@
* Copyright (C) 2003, 06 Ralf Baechle (ralf@linux-mips.org)
*/
#include <linux/bcd.h>
+#include <linux/i8253.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/kernel.h>
@@ -20,7 +21,6 @@
#include <asm/cpu.h>
#include <asm/mipsregs.h>
-#include <asm/i8253.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/time.h>
diff --git a/arch/mips/sgi-ip27/ip27-nmi.c b/arch/mips/sgi-ip27/ip27-nmi.c
index bc4fa8dd67f3..005c29ed419a 100644
--- a/arch/mips/sgi-ip27/ip27-nmi.c
+++ b/arch/mips/sgi-ip27/ip27-nmi.c
@@ -3,7 +3,7 @@
#include <linux/nodemask.h>
#include <linux/spinlock.h>
#include <linux/smp.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/sn/types.h>
#include <asm/sn/addrs.h>
#include <asm/sn/nmi.h>
diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c
index be4460a5f6a8..76ee045e2ce4 100644
--- a/arch/mips/sibyte/sb1250/irq.c
+++ b/arch/mips/sibyte/sb1250/irq.c
@@ -123,6 +123,13 @@ static int sb1250_set_affinity(struct irq_data *d, const struct cpumask *mask,
}
#endif
+static void disable_sb1250_irq(struct irq_data *d)
+{
+ unsigned int irq = d->irq;
+
+ sb1250_mask_irq(sb1250_irq_owner[irq], irq);
+}
+
static void enable_sb1250_irq(struct irq_data *d)
{
unsigned int irq = d->irq;
@@ -180,6 +187,7 @@ static struct irq_chip sb1250_irq_type = {
.name = "SB1250-IMR",
.irq_mask_ack = ack_sb1250_irq,
.irq_unmask = enable_sb1250_irq,
+ .irq_mask = disable_sb1250_irq,
#ifdef CONFIG_SMP
.irq_set_affinity = sb1250_set_affinity
#endif
diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index 0904d4d30cb3..ec0be14996a4 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -1,11 +1,11 @@
#include <linux/types.h>
+#include <linux/i8253.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/smp.h>
#include <linux/time.h>
#include <linux/clockchips.h>
-#include <asm/i8253.h>
#include <asm/sni.h>
#include <asm/time.h>
#include <asm-generic/rtc.h>