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-rw-r--r--arch/arc/include/asm/entry.h1
-rw-r--r--arch/arm/Kconfig4
-rw-r--r--arch/arm/Kconfig.debug14
-rw-r--r--arch/arm/Makefile18
-rw-r--r--arch/arm/include/asm/a.out-core.h45
-rw-r--r--arch/arm/include/asm/cputype.h7
-rw-r--r--arch/arm/include/asm/elf.h6
-rw-r--r--arch/arm/include/asm/mmu.h3
-rw-r--r--arch/arm/include/asm/mmu_context.h20
-rw-r--r--arch/arm/include/asm/page.h2
-rw-r--r--arch/arm/include/asm/processor.h4
-rw-r--r--arch/arm/include/asm/thread_info.h1
-rw-r--r--arch/arm/include/asm/tlbflush.h16
-rw-r--r--arch/arm/include/asm/virt.h12
-rw-r--r--arch/arm/include/uapi/asm/Kbuild1
-rw-r--r--arch/arm/include/uapi/asm/a.out.h34
-rw-r--r--arch/arm/kernel/entry-armv.S103
-rw-r--r--arch/arm/kernel/entry-v7m.S2
-rw-r--r--arch/arm/kernel/fiq.c19
-rw-r--r--arch/arm/kernel/head-nommu.S1
-rw-r--r--arch/arm/kernel/head.S1
-rw-r--r--arch/arm/kernel/hyp-stub.S4
-rw-r--r--arch/arm/kernel/process.c49
-rw-r--r--arch/arm/kernel/setup.c3
-rw-r--r--arch/arm/kernel/signal.c56
-rw-r--r--arch/arm/kernel/signal.h12
-rw-r--r--arch/arm/kernel/smp_tlb.c17
-rw-r--r--arch/arm/kernel/traps.c46
-rw-r--r--arch/arm/kernel/vmlinux.lds.S17
-rw-r--r--arch/arm/mm/Kconfig34
-rw-r--r--arch/arm/mm/context.c3
-rw-r--r--arch/arm/mm/mmu.c57
-rw-r--r--arch/arm/mm/proc-v7-2level.S2
-rw-r--r--arch/arm/mm/proc-v7-3level.S2
-rw-r--r--arch/arm/mm/proc-v7.S11
-rw-r--r--arch/arm/xen/enlighten.c2
-rw-r--r--arch/ia64/configs/generic_defconfig2
-rw-r--r--arch/ia64/configs/gensparse_defconfig2
-rw-r--r--arch/ia64/configs/tiger_defconfig2
-rw-r--r--arch/ia64/configs/xen_domu_defconfig2
-rw-r--r--arch/mips/Kconfig1
-rw-r--r--arch/mips/bcm47xx/Kconfig1
-rw-r--r--arch/mips/include/asm/mach-generic/spaces.h4
-rw-r--r--arch/mips/include/uapi/asm/siginfo.h7
-rw-r--r--arch/mips/kernel/bmips_vec.S6
-rw-r--r--arch/mips/kernel/smp-bmips.c18
-rw-r--r--arch/mips/powertv/asic/asic_devices.c3
-rw-r--r--arch/parisc/configs/c8000_defconfig279
-rw-r--r--arch/parisc/include/asm/parisc-device.h3
-rw-r--r--arch/parisc/kernel/cache.c135
-rw-r--r--arch/parisc/kernel/inventory.c1
-rw-r--r--arch/parisc/kernel/signal.c7
-rw-r--r--arch/parisc/kernel/signal32.c1
-rw-r--r--arch/parisc/kernel/sys32.h36
-rw-r--r--arch/parisc/kernel/sys_parisc32.c2
-rw-r--r--arch/powerpc/configs/ppc64_defconfig2
-rw-r--r--arch/powerpc/configs/ppc64e_defconfig2
-rw-r--r--arch/powerpc/configs/pseries_defconfig2
-rw-r--r--arch/powerpc/include/asm/perf_event_server.h6
-rw-r--r--arch/powerpc/include/asm/smp.h4
-rw-r--r--arch/powerpc/include/uapi/asm/Kbuild1
-rw-r--r--arch/powerpc/include/uapi/asm/perf_event.h18
-rw-r--r--arch/powerpc/kernel/irq.c2
-rw-r--r--arch/powerpc/mm/numa.c59
-rw-r--r--arch/powerpc/perf/core-book3s.c2
-rw-r--r--arch/powerpc/perf/power8-pmu.c6
-rw-r--r--arch/sh/configs/sh03_defconfig2
-rw-r--r--arch/x86/include/asm/mce.h13
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce-severity.c4
-rw-r--r--arch/x86/platform/ce4100/ce4100.c1
70 files changed, 865 insertions, 400 deletions
diff --git a/arch/arc/include/asm/entry.h b/arch/arc/include/asm/entry.h
index 8943c028d4bb..df57611652e5 100644
--- a/arch/arc/include/asm/entry.h
+++ b/arch/arc/include/asm/entry.h
@@ -38,6 +38,7 @@
#include <asm/ptrace.h>
#include <asm/processor.h> /* For VMALLOC_START */
#include <asm/thread_info.h> /* For THREAD_SIZE */
+#include <asm/mmu.h>
/* Note on the LD/ST addr modes with addr reg wback
*
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 37c0f4e978d4..43594d5116ef 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -20,7 +20,6 @@ config ARM
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select HARDIRQS_SW_RESEND
- select HAVE_AOUT
select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
select HAVE_ARCH_KGDB
select HAVE_ARCH_SECCOMP_FILTER
@@ -218,7 +217,8 @@ config VECTORS_BASE
default DRAM_BASE if REMAP_VECTORS_TO_RAM
default 0x00000000
help
- The base address of exception vectors.
+ The base address of exception vectors. This must be two pages
+ in size.
config ARM_PATCH_PHYS_VIRT
bool "Patch physical to virtual translations at runtime" if EMBEDDED
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index e401a766c0bd..583f4a00ec32 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -804,9 +804,19 @@ config DEBUG_LL_INCLUDE
config DEBUG_UNCOMPRESS
bool
- default y if ARCH_MULTIPLATFORM && DEBUG_LL && \
- !DEBUG_OMAP2PLUS_UART && \
+ depends on ARCH_MULTIPLATFORM
+ default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
!DEBUG_TEGRA_UART
+ help
+ This option influences the normal decompressor output for
+ multiplatform kernels. Normally, multiplatform kernels disable
+ decompressor output because it is not possible to know where to
+ send the decompressor output.
+
+ When this option is set, the selected DEBUG_LL output method
+ will be re-used for normal decompressor output on multiplatform
+ kernels.
+
config UNCOMPRESS_INCLUDE
string
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index c0ac0f5e5e5c..6fd2ceae305a 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -153,6 +153,7 @@ machine-$(CONFIG_ARCH_DAVINCI) += davinci
machine-$(CONFIG_ARCH_DOVE) += dove
machine-$(CONFIG_ARCH_EBSA110) += ebsa110
machine-$(CONFIG_ARCH_EP93XX) += ep93xx
+machine-$(CONFIG_ARCH_EXYNOS) += exynos
machine-$(CONFIG_ARCH_GEMINI) += gemini
machine-$(CONFIG_ARCH_HIGHBANK) += highbank
machine-$(CONFIG_ARCH_INTEGRATOR) += integrator
@@ -160,15 +161,16 @@ machine-$(CONFIG_ARCH_IOP13XX) += iop13xx
machine-$(CONFIG_ARCH_IOP32X) += iop32x
machine-$(CONFIG_ARCH_IOP33X) += iop33x
machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx
+machine-$(CONFIG_ARCH_KEYSTONE) += keystone
machine-$(CONFIG_ARCH_KIRKWOOD) += kirkwood
machine-$(CONFIG_ARCH_KS8695) += ks8695
machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx
machine-$(CONFIG_ARCH_MMP) += mmp
machine-$(CONFIG_ARCH_MSM) += msm
machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0
+machine-$(CONFIG_ARCH_MVEBU) += mvebu
machine-$(CONFIG_ARCH_MXC) += imx
machine-$(CONFIG_ARCH_MXS) += mxs
-machine-$(CONFIG_ARCH_MVEBU) += mvebu
machine-$(CONFIG_ARCH_NETX) += netx
machine-$(CONFIG_ARCH_NOMADIK) += nomadik
machine-$(CONFIG_ARCH_NSPIRE) += nspire
@@ -176,7 +178,6 @@ machine-$(CONFIG_ARCH_OMAP1) += omap1
machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2
machine-$(CONFIG_ARCH_ORION5X) += orion5x
machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell
-machine-$(CONFIG_ARCH_SIRF) += prima2
machine-$(CONFIG_ARCH_PXA) += pxa
machine-$(CONFIG_ARCH_REALVIEW) += realview
machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip
@@ -186,25 +187,24 @@ machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx
machine-$(CONFIG_ARCH_S5P64X0) += s5p64x0
machine-$(CONFIG_ARCH_S5PC100) += s5pc100
machine-$(CONFIG_ARCH_S5PV210) += s5pv210
-machine-$(CONFIG_ARCH_EXYNOS) += exynos
machine-$(CONFIG_ARCH_SA1100) += sa1100
machine-$(CONFIG_ARCH_SHARK) += shark
machine-$(CONFIG_ARCH_SHMOBILE) += shmobile
+machine-$(CONFIG_ARCH_SIRF) += prima2
+machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
+machine-$(CONFIG_ARCH_STI) += sti
+machine-$(CONFIG_ARCH_SUNXI) += sunxi
machine-$(CONFIG_ARCH_TEGRA) += tegra
machine-$(CONFIG_ARCH_U300) += u300
machine-$(CONFIG_ARCH_U8500) += ux500
machine-$(CONFIG_ARCH_VERSATILE) += versatile
machine-$(CONFIG_ARCH_VEXPRESS) += vexpress
+machine-$(CONFIG_ARCH_VIRT) += virt
machine-$(CONFIG_ARCH_VT8500) += vt8500
machine-$(CONFIG_ARCH_W90X900) += w90x900
+machine-$(CONFIG_ARCH_ZYNQ) += zynq
machine-$(CONFIG_FOOTBRIDGE) += footbridge
-machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
machine-$(CONFIG_PLAT_SPEAR) += spear
-machine-$(CONFIG_ARCH_STI) += sti
-machine-$(CONFIG_ARCH_VIRT) += virt
-machine-$(CONFIG_ARCH_ZYNQ) += zynq
-machine-$(CONFIG_ARCH_SUNXI) += sunxi
-machine-$(CONFIG_ARCH_KEYSTONE) += keystone
# Platform directory name. This list is sorted alphanumerically
# by CONFIG_* macro name.
diff --git a/arch/arm/include/asm/a.out-core.h b/arch/arm/include/asm/a.out-core.h
deleted file mode 100644
index 92f10cb5c70c..000000000000
--- a/arch/arm/include/asm/a.out-core.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* a.out coredump register dumper
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_A_OUT_CORE_H
-#define _ASM_A_OUT_CORE_H
-
-#ifdef __KERNEL__
-
-#include <linux/user.h>
-#include <linux/elfcore.h>
-
-/*
- * fill in the user structure for an a.out core dump
- */
-static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
-{
- struct task_struct *tsk = current;
-
- dump->magic = CMAGIC;
- dump->start_code = tsk->mm->start_code;
- dump->start_stack = regs->ARM_sp & ~(PAGE_SIZE - 1);
-
- dump->u_tsize = (tsk->mm->end_code - tsk->mm->start_code) >> PAGE_SHIFT;
- dump->u_dsize = (tsk->mm->brk - tsk->mm->start_data + PAGE_SIZE - 1) >> PAGE_SHIFT;
- dump->u_ssize = 0;
-
- memset(dump->u_debugreg, 0, sizeof(dump->u_debugreg));
-
- if (dump->start_stack < 0x04000000)
- dump->u_ssize = (0x04000000 - dump->start_stack) >> PAGE_SHIFT;
-
- dump->regs = *regs;
- dump->u_fpvalid = dump_fpu (regs, &dump->u_fp);
-}
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_A_OUT_CORE_H */
diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
index 8c25dc4e9851..9672e978d50d 100644
--- a/arch/arm/include/asm/cputype.h
+++ b/arch/arm/include/asm/cputype.h
@@ -89,13 +89,18 @@ extern unsigned int processor_id;
__val; \
})
+/*
+ * The memory clobber prevents gcc 4.5 from reordering the mrc before
+ * any is_smp() tests, which can cause undefined instruction aborts on
+ * ARM1136 r0 due to the missing extended CP15 registers.
+ */
#define read_cpuid_ext(ext_reg) \
({ \
unsigned int __val; \
asm("mrc p15, 0, %0, c0, " ext_reg \
: "=r" (__val) \
: \
- : "cc"); \
+ : "memory"); \
__val; \
})
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index 38050b1c4800..56211f2084ef 100644
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -130,4 +130,10 @@ struct mm_struct;
extern unsigned long arch_randomize_brk(struct mm_struct *mm);
#define arch_randomize_brk arch_randomize_brk
+#ifdef CONFIG_MMU
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+struct linux_binprm;
+int arch_setup_additional_pages(struct linux_binprm *, int);
+#endif
+
#endif
diff --git a/arch/arm/include/asm/mmu.h b/arch/arm/include/asm/mmu.h
index e3d55547e755..6f18da09668b 100644
--- a/arch/arm/include/asm/mmu.h
+++ b/arch/arm/include/asm/mmu.h
@@ -6,8 +6,11 @@
typedef struct {
#ifdef CONFIG_CPU_HAS_ASID
atomic64_t id;
+#else
+ int switch_pending;
#endif
unsigned int vmalloc_seq;
+ unsigned long sigpage;
} mm_context_t;
#ifdef CONFIG_CPU_HAS_ASID
diff --git a/arch/arm/include/asm/mmu_context.h b/arch/arm/include/asm/mmu_context.h
index b5792b7fd8d3..9b32f76bb0dd 100644
--- a/arch/arm/include/asm/mmu_context.h
+++ b/arch/arm/include/asm/mmu_context.h
@@ -56,7 +56,7 @@ static inline void check_and_switch_context(struct mm_struct *mm,
* on non-ASID CPUs, the old mm will remain valid until the
* finish_arch_post_lock_switch() call.
*/
- set_ti_thread_flag(task_thread_info(tsk), TIF_SWITCH_MM);
+ mm->context.switch_pending = 1;
else
cpu_switch_mm(mm->pgd, mm);
}
@@ -65,9 +65,21 @@ static inline void check_and_switch_context(struct mm_struct *mm,
finish_arch_post_lock_switch
static inline void finish_arch_post_lock_switch(void)
{
- if (test_and_clear_thread_flag(TIF_SWITCH_MM)) {
- struct mm_struct *mm = current->mm;
- cpu_switch_mm(mm->pgd, mm);
+ struct mm_struct *mm = current->mm;
+
+ if (mm && mm->context.switch_pending) {
+ /*
+ * Preemption must be disabled during cpu_switch_mm() as we
+ * have some stateful cache flush implementations. Check
+ * switch_pending again in case we were preempted and the
+ * switch to this mm was already done.
+ */
+ preempt_disable();
+ if (mm->context.switch_pending) {
+ mm->context.switch_pending = 0;
+ cpu_switch_mm(mm->pgd, mm);
+ }
+ preempt_enable_no_resched();
}
}
diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
index 6363f3d1d505..4355f0ec44d6 100644
--- a/arch/arm/include/asm/page.h
+++ b/arch/arm/include/asm/page.h
@@ -142,7 +142,9 @@ extern void __cpu_copy_user_highpage(struct page *to, struct page *from,
#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
extern void copy_page(void *to, const void *from);
+#ifdef CONFIG_KUSER_HELPERS
#define __HAVE_ARCH_GATE_AREA 1
+#endif
#ifdef CONFIG_ARM_LPAE
#include <asm/pgtable-3level-types.h>
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 06e7d509eaac..413f3876341c 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -54,7 +54,6 @@ struct thread_struct {
#define start_thread(regs,pc,sp) \
({ \
- unsigned long *stack = (unsigned long *)sp; \
memset(regs->uregs, 0, sizeof(regs->uregs)); \
if (current->personality & ADDR_LIMIT_32BIT) \
regs->ARM_cpsr = USR_MODE; \
@@ -65,9 +64,6 @@ struct thread_struct {
regs->ARM_cpsr |= PSR_ENDSTATE; \
regs->ARM_pc = pc & ~1; /* pc */ \
regs->ARM_sp = sp; /* sp */ \
- regs->ARM_r2 = stack[2]; /* r2 (envp) */ \
- regs->ARM_r1 = stack[1]; /* r1 (argv) */ \
- regs->ARM_r0 = stack[0]; /* r0 (argc) */ \
nommu_start_thread(regs); \
})
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index 214d4158089a..2b8114fcba09 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -156,7 +156,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
#define TIF_USING_IWMMXT 17
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
#define TIF_RESTORE_SIGMASK 20
-#define TIF_SWITCH_MM 22 /* deferred switch_mm */
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index fdbb9e369745..f467e9b3f8d5 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -443,7 +443,18 @@ static inline void local_flush_bp_all(void)
isb();
}
+#include <asm/cputype.h>
#ifdef CONFIG_ARM_ERRATA_798181
+static inline int erratum_a15_798181(void)
+{
+ unsigned int midr = read_cpuid_id();
+
+ /* Cortex-A15 r0p0..r3p2 affected */
+ if ((midr & 0xff0ffff0) != 0x410fc0f0 || midr > 0x413fc0f2)
+ return 0;
+ return 1;
+}
+
static inline void dummy_flush_tlb_a15_erratum(void)
{
/*
@@ -453,6 +464,11 @@ static inline void dummy_flush_tlb_a15_erratum(void)
dsb();
}
#else
+static inline int erratum_a15_798181(void)
+{
+ return 0;
+}
+
static inline void dummy_flush_tlb_a15_erratum(void)
{
}
diff --git a/arch/arm/include/asm/virt.h b/arch/arm/include/asm/virt.h
index 50af92bac737..4371f45c5784 100644
--- a/arch/arm/include/asm/virt.h
+++ b/arch/arm/include/asm/virt.h
@@ -29,6 +29,7 @@
#define BOOT_CPU_MODE_MISMATCH PSR_N_BIT
#ifndef __ASSEMBLY__
+#include <asm/cacheflush.h>
#ifdef CONFIG_ARM_VIRT_EXT
/*
@@ -41,10 +42,21 @@
*/
extern int __boot_cpu_mode;
+static inline void sync_boot_mode(void)
+{
+ /*
+ * As secondaries write to __boot_cpu_mode with caches disabled, we
+ * must flush the corresponding cache entries to ensure the visibility
+ * of their writes.
+ */
+ sync_cache_r(&__boot_cpu_mode);
+}
+
void __hyp_set_vectors(unsigned long phys_vector_base);
unsigned long __hyp_get_vectors(void);
#else
#define __boot_cpu_mode (SVC_MODE)
+#define sync_boot_mode()
#endif
#ifndef ZIMAGE
diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild
index 47bcb2d254af..18d76fd5a2af 100644
--- a/arch/arm/include/uapi/asm/Kbuild
+++ b/arch/arm/include/uapi/asm/Kbuild
@@ -1,7 +1,6 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
-header-y += a.out.h
header-y += byteorder.h
header-y += fcntl.h
header-y += hwcap.h
diff --git a/arch/arm/include/uapi/asm/a.out.h b/arch/arm/include/uapi/asm/a.out.h
deleted file mode 100644
index 083894b2e3bc..000000000000
--- a/arch/arm/include/uapi/asm/a.out.h
+++ /dev/null
@@ -1,34 +0,0 @@
-#ifndef __ARM_A_OUT_H__
-#define __ARM_A_OUT_H__
-
-#include <linux/personality.h>
-#include <linux/types.h>
-
-struct exec
-{
- __u32 a_info; /* Use macros N_MAGIC, etc for access */
- __u32 a_text; /* length of text, in bytes */
- __u32 a_data; /* length of data, in bytes */
- __u32 a_bss; /* length of uninitialized data area for file, in bytes */
- __u32 a_syms; /* length of symbol table data in file, in bytes */
- __u32 a_entry; /* start address */
- __u32 a_trsize; /* length of relocation info for text, in bytes */
- __u32 a_drsize; /* length of relocation info for data, in bytes */
-};
-
-/*
- * This is always the same
- */
-#define N_TXTADDR(a) (0x00008000)
-
-#define N_TRSIZE(a) ((a).a_trsize)
-#define N_DRSIZE(a) ((a).a_drsize)
-#define N_SYMSIZE(a) ((a).a_syms)
-
-#define M_ARM 103
-
-#ifndef LIBRARY_START_TEXT
-#define LIBRARY_START_TEXT (0x00c00000)
-#endif
-
-#endif /* __A_OUT_GNU_H__ */
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index a39cfc2a1f90..d40d0ef389db 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -742,6 +742,18 @@ ENDPROC(__switch_to)
#endif
.endm
+ .macro kuser_pad, sym, size
+ .if (. - \sym) & 3
+ .rept 4 - (. - \sym) & 3
+ .byte 0
+ .endr
+ .endif
+ .rept (\size - (. - \sym)) / 4
+ .word 0xe7fddef1
+ .endr
+ .endm
+
+#ifdef CONFIG_KUSER_HELPERS
.align 5
.globl __kuser_helper_start
__kuser_helper_start:
@@ -832,18 +844,13 @@ kuser_cmpxchg64_fixup:
#error "incoherent kernel configuration"
#endif
- /* pad to next slot */
- .rept (16 - (. - __kuser_cmpxchg64)/4)
- .word 0
- .endr
-
- .align 5
+ kuser_pad __kuser_cmpxchg64, 64
__kuser_memory_barrier: @ 0xffff0fa0
smp_dmb arm
usr_ret lr
- .align 5
+ kuser_pad __kuser_memory_barrier, 32
__kuser_cmpxchg: @ 0xffff0fc0
@@ -916,13 +923,14 @@ kuser_cmpxchg32_fixup:
#endif
- .align 5
+ kuser_pad __kuser_cmpxchg, 32
__kuser_get_tls: @ 0xffff0fe0
ldr r0, [pc, #(16 - 8)] @ read TLS, set in kuser_get_tls_init
usr_ret lr
mrc p15, 0, r0, c13, c0, 3 @ 0xffff0fe8 hardware TLS code
- .rep 4
+ kuser_pad __kuser_get_tls, 16
+ .rep 3
.word 0 @ 0xffff0ff0 software TLS value, then
.endr @ pad up to __kuser_helper_version
@@ -932,14 +940,16 @@ __kuser_helper_version: @ 0xffff0ffc
.globl __kuser_helper_end
__kuser_helper_end:
+#endif
+
THUMB( .thumb )
/*
* Vector stubs.
*
- * This code is copied to 0xffff0200 so we can use branches in the
- * vectors, rather than ldr's. Note that this code must not
- * exceed 0x300 bytes.
+ * This code is copied to 0xffff1000 so we can use branches in the
+ * vectors, rather than ldr's. Note that this code must not exceed
+ * a page size.
*
* Common stub entry macro:
* Enter in IRQ mode, spsr = SVC/USR CPSR, lr = SVC/USR PC
@@ -986,8 +996,17 @@ ENDPROC(vector_\name)
1:
.endm
- .globl __stubs_start
+ .section .stubs, "ax", %progbits
__stubs_start:
+ @ This must be the first word
+ .word vector_swi
+
+vector_rst:
+ ARM( swi SYS_ERROR0 )
+ THUMB( svc #0 )
+ THUMB( nop )
+ b vector_und
+
/*
* Interrupt dispatcher
*/
@@ -1082,6 +1101,16 @@ __stubs_start:
.align 5
/*=============================================================================
+ * Address exception handler
+ *-----------------------------------------------------------------------------
+ * These aren't too critical.
+ * (they're not supposed to happen, and won't happen in 32-bit data mode).
+ */
+
+vector_addrexcptn:
+ b vector_addrexcptn
+
+/*=============================================================================
* Undefined FIQs
*-----------------------------------------------------------------------------
* Enter in FIQ mode, spsr = ANY CPSR, lr = ANY PC
@@ -1094,45 +1123,19 @@ __stubs_start:
vector_fiq:
subs pc, lr, #4
-/*=============================================================================
- * Address exception handler
- *-----------------------------------------------------------------------------
- * These aren't too critical.
- * (they're not supposed to happen, and won't happen in 32-bit data mode).
- */
-
-vector_addrexcptn:
- b vector_addrexcptn
-
-/*
- * We group all the following data together to optimise
- * for CPUs with separate I & D caches.
- */
- .align 5
-
-.LCvswi:
- .word vector_swi
-
- .globl __stubs_end
-__stubs_end:
-
- .equ stubs_offset, __vectors_start + 0x200 - __stubs_start
+ .globl vector_fiq_offset
+ .equ vector_fiq_offset, vector_fiq
- .globl __vectors_start
+ .section .vectors, "ax", %progbits
__vectors_start:
- ARM( swi SYS_ERROR0 )
- THUMB( svc #0 )
- THUMB( nop )
- W(b) vector_und + stubs_offset
- W(ldr) pc, .LCvswi + stubs_offset
- W(b) vector_pabt + stubs_offset
- W(b) vector_dabt + stubs_offset
- W(b) vector_addrexcptn + stubs_offset
- W(b) vector_irq + stubs_offset
- W(b) vector_fiq + stubs_offset
-
- .globl __vectors_end
-__vectors_end:
+ W(b) vector_rst
+ W(b) vector_und
+ W(ldr) pc, __vectors_start + 0x1000
+ W(b) vector_pabt
+ W(b) vector_dabt
+ W(b) vector_addrexcptn
+ W(b) vector_irq
+ W(b) vector_fiq
.data
diff --git a/arch/arm/kernel/entry-v7m.S b/arch/arm/kernel/entry-v7m.S
index e00621f1403f..52b26432c9a9 100644
--- a/arch/arm/kernel/entry-v7m.S
+++ b/arch/arm/kernel/entry-v7m.S
@@ -49,7 +49,7 @@ __irq_entry:
mov r1, sp
stmdb sp!, {lr}
@ routine called with r0 = irq number, r1 = struct pt_regs *
- bl nvic_do_IRQ
+ bl nvic_handle_irq
pop {lr}
@
diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
index 2adda11f712f..25442f451148 100644
--- a/arch/arm/kernel/fiq.c
+++ b/arch/arm/kernel/fiq.c
@@ -47,6 +47,11 @@
#include <asm/irq.h>
#include <asm/traps.h>
+#define FIQ_OFFSET ({ \
+ extern void *vector_fiq_offset; \
+ (unsigned)&vector_fiq_offset; \
+ })
+
static unsigned long no_fiq_insn;
/* Default reacquire function
@@ -80,13 +85,16 @@ int show_fiq_list(struct seq_file *p, int prec)
void set_fiq_handler(void *start, unsigned int length)
{
#if defined(CONFIG_CPU_USE_DOMAINS)
- memcpy((void *)0xffff001c, start, length);
+ void *base = (void *)0xffff0000;
#else
- memcpy(vectors_page + 0x1c, start, length);
+ void *base = vectors_page;
#endif
- flush_icache_range(0xffff001c, 0xffff001c + length);
+ unsigned offset = FIQ_OFFSET;
+
+ memcpy(base + offset, start, length);
+ flush_icache_range(0xffff0000 + offset, 0xffff0000 + offset + length);
if (!vectors_high())
- flush_icache_range(0x1c, 0x1c + length);
+ flush_icache_range(offset, offset + length);
}
int claim_fiq(struct fiq_handler *f)
@@ -144,6 +152,7 @@ EXPORT_SYMBOL(disable_fiq);
void __init init_FIQ(int start)
{
- no_fiq_insn = *(unsigned long *)0xffff001c;
+ unsigned offset = FIQ_OFFSET;
+ no_fiq_insn = *(unsigned long *)(0xffff0000 + offset);
fiq_start = start;
}
diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S
index b361de143756..14235ba64a90 100644
--- a/arch/arm/kernel/head-nommu.S
+++ b/arch/arm/kernel/head-nommu.S
@@ -87,6 +87,7 @@ ENTRY(stext)
ENDPROC(stext)
#ifdef CONFIG_SMP
+ .text
ENTRY(secondary_startup)
/*
* Common entry point for secondary CPUs.
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 9cf6063020ae..2c7cc1e03473 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -343,6 +343,7 @@ __turn_mmu_on_loc:
.long __turn_mmu_on_end
#if defined(CONFIG_SMP)
+ .text
ENTRY(secondary_startup)
/*
* Common entry point for secondary CPUs.
diff --git a/arch/arm/kernel/hyp-stub.S b/arch/arm/kernel/hyp-stub.S
index 4910232c4833..797b1a6a4906 100644
--- a/arch/arm/kernel/hyp-stub.S
+++ b/arch/arm/kernel/hyp-stub.S
@@ -56,8 +56,8 @@ ENTRY(__boot_cpu_mode)
ldr \reg3, [\reg2]
ldr \reg1, [\reg2, \reg3]
cmp \mode, \reg1 @ matches primary CPU boot mode?
- orrne r7, r7, #BOOT_CPU_MODE_MISMATCH
- strne r7, [r5, r6] @ record what happened and give up
+ orrne \reg1, \reg1, #BOOT_CPU_MODE_MISMATCH
+ strne \reg1, [\reg2, \reg3] @ record what happened and give up
.endm
#else /* ZIMAGE */
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index d3ca4f6915af..536c85fe72a8 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -197,6 +197,7 @@ void machine_shutdown(void)
*/
void machine_halt(void)
{
+ local_irq_disable();
smp_send_stop();
local_irq_disable();
@@ -211,6 +212,7 @@ void machine_halt(void)
*/
void machine_power_off(void)
{
+ local_irq_disable();
smp_send_stop();
if (pm_power_off)
@@ -230,6 +232,7 @@ void machine_power_off(void)
*/
void machine_restart(char *cmd)
{
+ local_irq_disable();
smp_send_stop();
arm_pm_restart(reboot_mode, cmd);
@@ -426,10 +429,11 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
}
#ifdef CONFIG_MMU
+#ifdef CONFIG_KUSER_HELPERS
/*
* The vectors page is always readable from user space for the
- * atomic helpers and the signal restart code. Insert it into the
- * gate_vma so that it is visible through ptrace and /proc/<pid>/mem.
+ * atomic helpers. Insert it into the gate_vma so that it is visible
+ * through ptrace and /proc/<pid>/mem.
*/
static struct vm_area_struct gate_vma = {
.vm_start = 0xffff0000,
@@ -458,9 +462,48 @@ int in_gate_area_no_mm(unsigned long addr)
{
return in_gate_area(NULL, addr);
}
+#define is_gate_vma(vma) ((vma) = &gate_vma)
+#else
+#define is_gate_vma(vma) 0
+#endif
const char *arch_vma_name(struct vm_area_struct *vma)
{
- return (vma == &gate_vma) ? "[vectors]" : NULL;
+ return is_gate_vma(vma) ? "[vectors]" :
+ (vma->vm_mm && vma->vm_start == vma->vm_mm->context.sigpage) ?
+ "[sigpage]" : NULL;
+}
+
+static struct page *signal_page;
+extern struct page *get_signal_page(void);
+
+int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+{
+ struct mm_struct *mm = current->mm;
+ unsigned long addr;
+ int ret;
+
+ if (!signal_page)
+ signal_page = get_signal_page();
+ if (!signal_page)
+ return -ENOMEM;
+
+ down_write(&mm->mmap_sem);
+ addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
+ if (IS_ERR_VALUE(addr)) {
+ ret = addr;
+ goto up_fail;
+ }
+
+ ret = install_special_mapping(mm, addr, PAGE_SIZE,
+ VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
+ &signal_page);
+
+ if (ret == 0)
+ mm->context.sigpage = addr;
+
+ up_fail:
+ up_write(&mm->mmap_sem);
+ return ret;
}
#endif
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 63af9a7ae512..afc2489ee13b 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -836,6 +836,8 @@ static int __init meminfo_cmp(const void *_a, const void *_b)
void __init hyp_mode_check(void)
{
#ifdef CONFIG_ARM_VIRT_EXT
+ sync_boot_mode();
+
if (is_hyp_mode_available()) {
pr_info("CPU: All CPU(s) started in HYP mode.\n");
pr_info("CPU: Virtualization extensions available.\n");
@@ -971,6 +973,7 @@ static const char *hwcap_str[] = {
"vfpv4",
"idiva",
"idivt",
+ "vfpd32",
"lpae",
NULL
};
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 1c16c35c271a..ab3304225272 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -8,6 +8,7 @@
* published by the Free Software Foundation.
*/
#include <linux/errno.h>
+#include <linux/random.h>
#include <linux/signal.h>
#include <linux/personality.h>
#include <linux/uaccess.h>
@@ -15,12 +16,11 @@
#include <asm/elf.h>
#include <asm/cacheflush.h>
+#include <asm/traps.h>
#include <asm/ucontext.h>
#include <asm/unistd.h>
#include <asm/vfp.h>
-#include "signal.h"
-
/*
* For ARM syscalls, we encode the syscall number into the instruction.
*/
@@ -40,11 +40,13 @@
#define SWI_THUMB_SIGRETURN (0xdf00 << 16 | 0x2700 | (__NR_sigreturn - __NR_SYSCALL_BASE))
#define SWI_THUMB_RT_SIGRETURN (0xdf00 << 16 | 0x2700 | (__NR_rt_sigreturn - __NR_SYSCALL_BASE))
-const unsigned long sigreturn_codes[7] = {
+static const unsigned long sigreturn_codes[7] = {
MOV_R7_NR_SIGRETURN, SWI_SYS_SIGRETURN, SWI_THUMB_SIGRETURN,
MOV_R7_NR_RT_SIGRETURN, SWI_SYS_RT_SIGRETURN, SWI_THUMB_RT_SIGRETURN,
};
+static unsigned long signal_return_offset;
+
#ifdef CONFIG_CRUNCH
static int preserve_crunch_context(struct crunch_sigframe __user *frame)
{
@@ -400,14 +402,20 @@ setup_return(struct pt_regs *regs, struct ksignal *ksig,
__put_user(sigreturn_codes[idx+1], rc+1))
return 1;
- if ((cpsr & MODE32_BIT) && !IS_ENABLED(CONFIG_ARM_MPU)) {
+#ifdef CONFIG_MMU
+ if (cpsr & MODE32_BIT) {
+ struct mm_struct *mm = current->mm;
+
/*
- * 32-bit code can use the new high-page
- * signal return code support except when the MPU has
- * protected the vectors page from PL0
+ * 32-bit code can use the signal return page
+ * except when the MPU has protected the vectors
+ * page from PL0
*/
- retcode = KERN_SIGRETURN_CODE + (idx << 2) + thumb;
- } else {
+ retcode = mm->context.sigpage + signal_return_offset +
+ (idx << 2) + thumb;
+ } else
+#endif
+ {
/*
* Ensure that the instruction cache sees
* the return code written onto the stack.
@@ -608,3 +616,33 @@ do_work_pending(struct pt_regs *regs, unsigned int thread_flags, int syscall)
} while (thread_flags & _TIF_WORK_MASK);
return 0;
}
+
+struct page *get_signal_page(void)
+{
+ unsigned long ptr;
+ unsigned offset;
+ struct page *page;
+ void *addr;
+
+ page = alloc_pages(GFP_KERNEL, 0);
+
+ if (!page)
+ return NULL;
+
+ addr = page_address(page);
+
+ /* Give the signal return code some randomness */
+ offset = 0x200 + (get_random_int() & 0x7fc);
+ signal_return_offset = offset;
+
+ /*
+ * Copy signal return handlers into the vector page, and
+ * set sigreturn to be a pointer to these.
+ */
+ memcpy(addr + offset, sigreturn_codes, sizeof(sigreturn_codes));
+
+ ptr = (unsigned long)addr + offset;
+ flush_icache_range(ptr, ptr + sizeof(sigreturn_codes));
+
+ return page;
+}
diff --git a/arch/arm/kernel/signal.h b/arch/arm/kernel/signal.h
deleted file mode 100644
index 5ff067b7c752..000000000000
--- a/arch/arm/kernel/signal.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- * linux/arch/arm/kernel/signal.h
- *
- * Copyright (C) 2005-2009 Russell King.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#define KERN_SIGRETURN_CODE (CONFIG_VECTORS_BASE + 0x00000500)
-
-extern const unsigned long sigreturn_codes[7];
diff --git a/arch/arm/kernel/smp_tlb.c b/arch/arm/kernel/smp_tlb.c
index a98b62dca2fa..c2edfff573c2 100644
--- a/arch/arm/kernel/smp_tlb.c
+++ b/arch/arm/kernel/smp_tlb.c
@@ -70,23 +70,6 @@ static inline void ipi_flush_bp_all(void *ignored)
local_flush_bp_all();
}
-#ifdef CONFIG_ARM_ERRATA_798181
-static int erratum_a15_798181(void)
-{
- unsigned int midr = read_cpuid_id();
-
- /* Cortex-A15 r0p0..r3p2 affected */
- if ((midr & 0xff0ffff0) != 0x410fc0f0 || midr > 0x413fc0f2)
- return 0;
- return 1;
-}
-#else
-static int erratum_a15_798181(void)
-{
- return 0;
-}
-#endif
-
static void ipi_flush_tlb_a15_erratum(void *arg)
{
dmb();
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index cab094c234ee..ab517fcce21b 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -35,8 +35,6 @@
#include <asm/tls.h>
#include <asm/system_misc.h>
-#include "signal.h"
-
static const char *handler[]= { "prefetch abort", "data abort", "address exception", "interrupt" };
void *vectors_page;
@@ -800,15 +798,26 @@ void __init trap_init(void)
return;
}
-static void __init kuser_get_tls_init(unsigned long vectors)
+#ifdef CONFIG_KUSER_HELPERS
+static void __init kuser_init(void *vectors)
{
+ extern char __kuser_helper_start[], __kuser_helper_end[];
+ int kuser_sz = __kuser_helper_end - __kuser_helper_start;
+
+ memcpy(vectors + 0x1000 - kuser_sz, __kuser_helper_start, kuser_sz);
+
/*
* vectors + 0xfe0 = __kuser_get_tls
* vectors + 0xfe8 = hardware TLS instruction at 0xffff0fe8
*/
if (tls_emu || has_tls_reg)
- memcpy((void *)vectors + 0xfe0, (void *)vectors + 0xfe8, 4);
+ memcpy(vectors + 0xfe0, vectors + 0xfe8, 4);
}
+#else
+static void __init kuser_init(void *vectors)
+{
+}
+#endif
void __init early_trap_init(void *vectors_base)
{
@@ -816,33 +825,30 @@ void __init early_trap_init(void *vectors_base)
unsigned long vectors = (unsigned long)vectors_base;
extern char __stubs_start[], __stubs_end[];
extern char __vectors_start[], __vectors_end[];
- extern char __kuser_helper_start[], __kuser_helper_end[];
- int kuser_sz = __kuser_helper_end - __kuser_helper_start;
+ unsigned i;
vectors_page = vectors_base;
/*
+ * Poison the vectors page with an undefined instruction. This
+ * instruction is chosen to be undefined for both ARM and Thumb
+ * ISAs. The Thumb version is an undefined instruction with a
+ * branch back to the undefined instruction.
+ */
+ for (i = 0; i < PAGE_SIZE / sizeof(u32); i++)
+ ((u32 *)vectors_base)[i] = 0xe7fddef1;
+
+ /*
* Copy the vectors, stubs and kuser helpers (in entry-armv.S)
* into the vector page, mapped at 0xffff0000, and ensure these
* are visible to the instruction stream.
*/
memcpy((void *)vectors, __vectors_start, __vectors_end - __vectors_start);
- memcpy((void *)vectors + 0x200, __stubs_start, __stubs_end - __stubs_start);
- memcpy((void *)vectors + 0x1000 - kuser_sz, __kuser_helper_start, kuser_sz);
+ memcpy((void *)vectors + 0x1000, __stubs_start, __stubs_end - __stubs_start);
- /*
- * Do processor specific fixups for the kuser helpers
- */
- kuser_get_tls_init(vectors);
-
- /*
- * Copy signal return handlers into the vector page, and
- * set sigreturn to be a pointer to these.
- */
- memcpy((void *)(vectors + KERN_SIGRETURN_CODE - CONFIG_VECTORS_BASE),
- sigreturn_codes, sizeof(sigreturn_codes));
+ kuser_init(vectors_base);
- flush_icache_range(vectors, vectors + PAGE_SIZE);
+ flush_icache_range(vectors, vectors + PAGE_SIZE * 2);
modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
#else /* ifndef CONFIG_CPU_V7M */
/*
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index fa25e4e425f6..7bcee5c9b604 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -148,6 +148,23 @@ SECTIONS
. = ALIGN(PAGE_SIZE);
__init_begin = .;
#endif
+ /*
+ * The vectors and stubs are relocatable code, and the
+ * only thing that matters is their relative offsets
+ */
+ __vectors_start = .;
+ .vectors 0 : AT(__vectors_start) {
+ *(.vectors)
+ }
+ . = __vectors_start + SIZEOF(.vectors);
+ __vectors_end = .;
+
+ __stubs_start = .;
+ .stubs 0x1000 : AT(__stubs_start) {
+ *(.stubs)
+ }
+ . = __stubs_start + SIZEOF(.stubs);
+ __stubs_end = .;
INIT_TEXT_SECTION(8)
.exit.text : {
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 6cacdc8dd654..db5c2cab8fda 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -421,24 +421,28 @@ config CPU_32v3
select CPU_USE_DOMAINS if MMU
select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
select TLS_REG_EMUL if SMP || !MMU
+ select NEED_KUSER_HELPERS
config CPU_32v4
bool
select CPU_USE_DOMAINS if MMU
select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
select TLS_REG_EMUL if SMP || !MMU
+ select NEED_KUSER_HELPERS
config CPU_32v4T
bool
select CPU_USE_DOMAINS if MMU
select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
select TLS_REG_EMUL if SMP || !MMU
+ select NEED_KUSER_HELPERS
config CPU_32v5
bool
select CPU_USE_DOMAINS if MMU
select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
select TLS_REG_EMUL if SMP || !MMU
+ select NEED_KUSER_HELPERS
config CPU_32v6
bool
@@ -776,6 +780,7 @@ config CPU_BPREDICT_DISABLE
config TLS_REG_EMUL
bool
+ select NEED_KUSER_HELPERS
help
An SMP system using a pre-ARMv6 processor (there are apparently
a few prototypes like that in existence) and therefore access to
@@ -783,11 +788,40 @@ config TLS_REG_EMUL
config NEEDS_SYSCALL_FOR_CMPXCHG
bool
+ select NEED_KUSER_HELPERS
help
SMP on a pre-ARMv6 processor? Well OK then.
Forget about fast user space cmpxchg support.
It is just not possible.
+config NEED_KUSER_HELPERS
+ bool
+
+config KUSER_HELPERS
+ bool "Enable kuser helpers in vector page" if !NEED_KUSER_HELPERS
+ default y
+ help
+ Warning: disabling this option may break user programs.
+
+ Provide kuser helpers in the vector page. The kernel provides
+ helper code to userspace in read only form at a fixed location
+ in the high vector page to allow userspace to be independent of
+ the CPU type fitted to the system. This permits binaries to be
+ run on ARMv4 through to ARMv7 without modification.
+
+ However, the fixed address nature of these helpers can be used
+ by ROP (return orientated programming) authors when creating
+ exploits.
+
+ If all of the binaries and libraries which run on your platform
+ are built specifically for your platform, and make no use of
+ these helpers, then you can turn this option off. However,
+ when such an binary or library is run, it will receive a SIGILL
+ signal, which will terminate the program.
+
+ Say N here only if you are absolutely certain that you do not
+ need these helpers; otherwise, the safe option is to say Y.
+
config DMA_CACHE_RWFO
bool "Enable read/write for ownership DMA cache maintenance"
depends on CPU_V6K && SMP
diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c
index b55b1015724b..4a0544492f10 100644
--- a/arch/arm/mm/context.c
+++ b/arch/arm/mm/context.c
@@ -245,7 +245,8 @@ void check_and_switch_context(struct mm_struct *mm, struct task_struct *tsk)
if (cpumask_test_and_clear_cpu(cpu, &tlb_flush_pending)) {
local_flush_bp_all();
local_flush_tlb_all();
- dummy_flush_tlb_a15_erratum();
+ if (erratum_a15_798181())
+ dummy_flush_tlb_a15_erratum();
}
atomic64_set(&per_cpu(active_asids, cpu), asid);
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 4f56617a2392..53cdbd39ec8e 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -989,6 +989,7 @@ phys_addr_t arm_lowmem_limit __initdata = 0;
void __init sanity_check_meminfo(void)
{
+ phys_addr_t memblock_limit = 0;
int i, j, highmem = 0;
phys_addr_t vmalloc_limit = __pa(vmalloc_min - 1) + 1;
@@ -1052,9 +1053,32 @@ void __init sanity_check_meminfo(void)
bank->size = size_limit;
}
#endif
- if (!bank->highmem && bank->start + bank->size > arm_lowmem_limit)
- arm_lowmem_limit = bank->start + bank->size;
+ if (!bank->highmem) {
+ phys_addr_t bank_end = bank->start + bank->size;
+ if (bank_end > arm_lowmem_limit)
+ arm_lowmem_limit = bank_end;
+
+ /*
+ * Find the first non-section-aligned page, and point
+ * memblock_limit at it. This relies on rounding the
+ * limit down to be section-aligned, which happens at
+ * the end of this function.
+ *
+ * With this algorithm, the start or end of almost any
+ * bank can be non-section-aligned. The only exception
+ * is that the start of the bank 0 must be section-
+ * aligned, since otherwise memory would need to be
+ * allocated when mapping the start of bank 0, which
+ * occurs before any free memory is mapped.
+ */
+ if (!memblock_limit) {
+ if (!IS_ALIGNED(bank->start, SECTION_SIZE))
+ memblock_limit = bank->start;
+ else if (!IS_ALIGNED(bank_end, SECTION_SIZE))
+ memblock_limit = bank_end;
+ }
+ }
j++;
}
#ifdef CONFIG_HIGHMEM
@@ -1079,7 +1103,18 @@ void __init sanity_check_meminfo(void)
#endif
meminfo.nr_banks = j;
high_memory = __va(arm_lowmem_limit - 1) + 1;
- memblock_set_current_limit(arm_lowmem_limit);
+
+ /*
+ * Round the memblock limit down to a section size. This
+ * helps to ensure that we will allocate memory from the
+ * last full section, which should be mapped.
+ */
+ if (memblock_limit)
+ memblock_limit = round_down(memblock_limit, SECTION_SIZE);
+ if (!memblock_limit)
+ memblock_limit = arm_lowmem_limit;
+
+ memblock_set_current_limit(memblock_limit);
}
static inline void prepare_page_table(void)
@@ -1160,7 +1195,7 @@ static void __init devicemaps_init(struct machine_desc *mdesc)
/*
* Allocate the vector page early.
*/
- vectors = early_alloc(PAGE_SIZE);
+ vectors = early_alloc(PAGE_SIZE * 2);
early_trap_init(vectors);
@@ -1205,15 +1240,27 @@ static void __init devicemaps_init(struct machine_desc *mdesc)
map.pfn = __phys_to_pfn(virt_to_phys(vectors));
map.virtual = 0xffff0000;
map.length = PAGE_SIZE;
+#ifdef CONFIG_KUSER_HELPERS
map.type = MT_HIGH_VECTORS;
+#else
+ map.type = MT_LOW_VECTORS;
+#endif
create_mapping(&map);
if (!vectors_high()) {
map.virtual = 0;
+ map.length = PAGE_SIZE * 2;
map.type = MT_LOW_VECTORS;
create_mapping(&map);
}
+ /* Now create a kernel read-only mapping */
+ map.pfn += 1;
+ map.virtual = 0xffff0000 + PAGE_SIZE;
+ map.length = PAGE_SIZE;
+ map.type = MT_LOW_VECTORS;
+ create_mapping(&map);
+
/*
* Ask the machine support to map in the statically mapped devices.
*/
@@ -1276,8 +1323,6 @@ void __init paging_init(struct machine_desc *mdesc)
{
void *zero_page;
- memblock_set_current_limit(arm_lowmem_limit);
-
build_mem_type_table();
prepare_page_table();
map_lowmem();
diff --git a/arch/arm/mm/proc-v7-2level.S b/arch/arm/mm/proc-v7-2level.S
index f64afb9f1bd5..bdd3be4be77a 100644
--- a/arch/arm/mm/proc-v7-2level.S
+++ b/arch/arm/mm/proc-v7-2level.S
@@ -110,7 +110,7 @@ ENTRY(cpu_v7_set_pte_ext)
ARM( str r3, [r0, #2048]! )
THUMB( add r0, r0, #2048 )
THUMB( str r3, [r0] )
- ALT_SMP(mov pc,lr)
+ ALT_SMP(W(nop))
ALT_UP (mcr p15, 0, r0, c7, c10, 1) @ flush_pte
#endif
mov pc, lr
diff --git a/arch/arm/mm/proc-v7-3level.S b/arch/arm/mm/proc-v7-3level.S
index c36ac69488c8..01a719e18bb0 100644
--- a/arch/arm/mm/proc-v7-3level.S
+++ b/arch/arm/mm/proc-v7-3level.S
@@ -81,7 +81,7 @@ ENTRY(cpu_v7_set_pte_ext)
tst r3, #1 << (55 - 32) @ L_PTE_DIRTY
orreq r2, #L_PTE_RDONLY
1: strd r2, r3, [r0]
- ALT_SMP(mov pc, lr)
+ ALT_SMP(W(nop))
ALT_UP (mcr p15, 0, r0, c7, c10, 1) @ flush_pte
#endif
mov pc, lr
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 5c6d5a3050ea..73398bcf9bd8 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -75,13 +75,14 @@ ENTRY(cpu_v7_do_idle)
ENDPROC(cpu_v7_do_idle)
ENTRY(cpu_v7_dcache_clean_area)
- ALT_SMP(mov pc, lr) @ MP extensions imply L1 PTW
- ALT_UP(W(nop))
- dcache_line_size r2, r3
-1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
+ ALT_SMP(W(nop)) @ MP extensions imply L1 PTW
+ ALT_UP_B(1f)
+ mov pc, lr
+1: dcache_line_size r2, r3
+2: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
add r0, r0, r2
subs r1, r1, r2
- bhi 1b
+ bhi 2b
dsb
mov pc, lr
ENDPROC(cpu_v7_dcache_clean_area)
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index f71c37edca26..c9770ba5c7df 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -172,7 +172,7 @@ static void __init xen_percpu_init(void *unused)
enable_percpu_irq(xen_events_irq, 0);
}
-static void xen_restart(char str, const char *cmd)
+static void xen_restart(enum reboot_mode reboot_mode, const char *cmd)
{
struct sched_shutdown r = { .reason = SHUTDOWN_reboot };
int rc;
diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig
index 7913695b2fcb..efbd2929aeb7 100644
--- a/arch/ia64/configs/generic_defconfig
+++ b/arch/ia64/configs/generic_defconfig
@@ -31,7 +31,7 @@ CONFIG_ACPI_FAN=m
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_CONTAINER=m
-CONFIG_HOTPLUG_PCI=m
+CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=m
CONFIG_PACKET=y
CONFIG_UNIX=y
diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig
index f8e913365423..f64980dd20c3 100644
--- a/arch/ia64/configs/gensparse_defconfig
+++ b/arch/ia64/configs/gensparse_defconfig
@@ -25,7 +25,7 @@ CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_CONTAINER=m
-CONFIG_HOTPLUG_PCI=m
+CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=m
CONFIG_PACKET=y
CONFIG_UNIX=y
diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig
index a5a9e02e60a0..0f4e9e41f130 100644
--- a/arch/ia64/configs/tiger_defconfig
+++ b/arch/ia64/configs/tiger_defconfig
@@ -31,7 +31,7 @@ CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_CONTAINER=m
-CONFIG_HOTPLUG_PCI=m
+CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=m
CONFIG_PACKET=y
CONFIG_UNIX=y
diff --git a/arch/ia64/configs/xen_domu_defconfig b/arch/ia64/configs/xen_domu_defconfig
index 37b9b422caad..b025acfde5c1 100644
--- a/arch/ia64/configs/xen_domu_defconfig
+++ b/arch/ia64/configs/xen_domu_defconfig
@@ -32,7 +32,7 @@ CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_CONTAINER=m
-CONFIG_HOTPLUG_PCI=m
+CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=m
CONFIG_PACKET=y
CONFIG_UNIX=y
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index c3abed332301..e12764c2a9d0 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -114,6 +114,7 @@ config BCM47XX
select FW_CFE
select HW_HAS_PCI
select IRQ_CPU
+ select SYS_HAS_CPU_MIPS32_R1
select NO_EXCEPT_FILL
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
diff --git a/arch/mips/bcm47xx/Kconfig b/arch/mips/bcm47xx/Kconfig
index ba611927749b..2b8b118398c4 100644
--- a/arch/mips/bcm47xx/Kconfig
+++ b/arch/mips/bcm47xx/Kconfig
@@ -2,7 +2,6 @@ if BCM47XX
config BCM47XX_SSB
bool "SSB Support for Broadcom BCM47XX"
- select SYS_HAS_CPU_MIPS32_R1
select SSB
select SSB_DRIVER_MIPS
select SSB_DRIVER_EXTIF
diff --git a/arch/mips/include/asm/mach-generic/spaces.h b/arch/mips/include/asm/mach-generic/spaces.h
index 5b2f2e68e57f..9488fa5f8866 100644
--- a/arch/mips/include/asm/mach-generic/spaces.h
+++ b/arch/mips/include/asm/mach-generic/spaces.h
@@ -25,8 +25,12 @@
#else
#define CAC_BASE _AC(0x80000000, UL)
#endif
+#ifndef IO_BASE
#define IO_BASE _AC(0xa0000000, UL)
+#endif
+#ifndef UNCAC_BASE
#define UNCAC_BASE _AC(0xa0000000, UL)
+#endif
#ifndef MAP_BASE
#ifdef CONFIG_KVM_GUEST
diff --git a/arch/mips/include/uapi/asm/siginfo.h b/arch/mips/include/uapi/asm/siginfo.h
index b7a23064841f..88e292b7719e 100644
--- a/arch/mips/include/uapi/asm/siginfo.h
+++ b/arch/mips/include/uapi/asm/siginfo.h
@@ -25,11 +25,12 @@ struct siginfo;
/*
* Careful to keep union _sifields from shifting ...
*/
-#if __SIZEOF_LONG__ == 4
+#if _MIPS_SZLONG == 32
#define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
-#endif
-#if __SIZEOF_LONG__ == 8
+#elif _MIPS_SZLONG == 64
#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
+#else
+#error _MIPS_SZLONG neither 32 nor 64
#endif
#include <asm-generic/siginfo.h>
diff --git a/arch/mips/kernel/bmips_vec.S b/arch/mips/kernel/bmips_vec.S
index f739aedcb509..bd79c4f9bff4 100644
--- a/arch/mips/kernel/bmips_vec.S
+++ b/arch/mips/kernel/bmips_vec.S
@@ -54,7 +54,11 @@ LEAF(bmips_smp_movevec)
/* set up CPU1 CBR; move BASE to 0xa000_0000 */
li k0, 0xff400000
mtc0 k0, $22, 6
- li k1, CKSEG1 | BMIPS_RELO_VECTOR_CONTROL_1
+ /* set up relocation vector address based on thread ID */
+ mfc0 k1, $22, 3
+ srl k1, 16
+ andi k1, 0x8000
+ or k1, CKSEG1 | BMIPS_RELO_VECTOR_CONTROL_0
or k0, k1
li k1, 0xa0080000
sw k1, 0(k0)
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index c0bb4d59076a..159abc8842d2 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -79,15 +79,9 @@ static void __init bmips_smp_setup(void)
* MIPS interrupts 0,1 (SW INT 0,1) cross over to the other thread
* MIPS interrupt 2 (HW INT 0) is the CPU0 L1 controller output
* MIPS interrupt 3 (HW INT 1) is the CPU1 L1 controller output
- *
- * If booting from TP1, leave the existing CMT interrupt routing
- * such that TP0 responds to SW1 and TP1 responds to SW0.
*/
- if (boot_cpu == 0)
- change_c0_brcm_cmt_intr(0xf8018000,
+ change_c0_brcm_cmt_intr(0xf8018000,
(0x02 << 27) | (0x03 << 15));
- else
- change_c0_brcm_cmt_intr(0xf8018000, (0x1d << 27));
/* single core, 2 threads (2 pipelines) */
max_cpus = 2;
@@ -202,9 +196,15 @@ static void bmips_init_secondary(void)
#if defined(CONFIG_CPU_BMIPS4350) || defined(CONFIG_CPU_BMIPS4380)
void __iomem *cbr = BMIPS_GET_CBR();
unsigned long old_vec;
+ unsigned long relo_vector;
+ int boot_cpu;
+
+ boot_cpu = !!(read_c0_brcm_cmt_local() & (1 << 31));
+ relo_vector = boot_cpu ? BMIPS_RELO_VECTOR_CONTROL_0 :
+ BMIPS_RELO_VECTOR_CONTROL_1;
- old_vec = __raw_readl(cbr + BMIPS_RELO_VECTOR_CONTROL_1);
- __raw_writel(old_vec & ~0x20000000, cbr + BMIPS_RELO_VECTOR_CONTROL_1);
+ old_vec = __raw_readl(cbr + relo_vector);
+ __raw_writel(old_vec & ~0x20000000, cbr + relo_vector);
clear_c0_cause(smp_processor_id() ? C_SW1 : C_SW0);
#elif defined(CONFIG_CPU_BMIPS5000)
diff --git a/arch/mips/powertv/asic/asic_devices.c b/arch/mips/powertv/asic/asic_devices.c
index 9f64c2387808..0238af1ba503 100644
--- a/arch/mips/powertv/asic/asic_devices.c
+++ b/arch/mips/powertv/asic/asic_devices.c
@@ -529,8 +529,7 @@ EXPORT_SYMBOL(asic_resource_get);
*/
void platform_release_memory(void *ptr, int size)
{
- free_reserved_area((unsigned long)ptr, (unsigned long)(ptr + size),
- -1, NULL);
+ free_reserved_area(ptr, ptr + size, -1, NULL);
}
EXPORT_SYMBOL(platform_release_memory);
diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig
new file mode 100644
index 000000000000..f11006361297
--- /dev/null
+++ b/arch/parisc/configs/c8000_defconfig
@@ -0,0 +1,279 @@
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_RELAY=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_RD_BZIP2=y
+CONFIG_RD_LZMA=y
+CONFIG_RD_LZO=y
+CONFIG_EXPERT=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_SLAB=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_BLK_DEV_INTEGRITY=y
+CONFIG_PA8X00=y
+CONFIG_MLONGCALLS=y
+CONFIG_64BIT=y
+CONFIG_SMP=y
+CONFIG_PREEMPT=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
+CONFIG_IOMMU_CCIO=y
+CONFIG_PCI=y
+CONFIG_PCI_LBA=y
+# CONFIG_SUPERIO is not set
+# CONFIG_CHASSIS_LCD_LED is not set
+# CONFIG_PDC_CHASSIS is not set
+# CONFIG_PDC_CHASSIS_WARN is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_BINFMT_MISC=m
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=m
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_NET_KEY=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_IP_PNP_RARP=y
+CONFIG_NET_IPIP=m
+CONFIG_IP_MROUTE=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_SYN_COOKIES=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_IPCOMP=m
+CONFIG_INET_XFRM_MODE_BEET=m
+CONFIG_INET_DIAG=m
+# CONFIG_IPV6 is not set
+CONFIG_IP_DCCP=m
+# CONFIG_IP_DCCP_CCID3 is not set
+CONFIG_TIPC=m
+CONFIG_LLC2=m
+CONFIG_DNS_RESOLVER=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+# CONFIG_STANDALONE is not set
+CONFIG_PARPORT=y
+CONFIG_PARPORT_PC=y
+CONFIG_PARPORT_PC_FIFO=y
+CONFIG_BLK_DEV_UMEM=m
+CONFIG_BLK_DEV_LOOP=m
+CONFIG_BLK_DEV_CRYPTOLOOP=m
+CONFIG_BLK_DEV_SX8=m
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=6144
+CONFIG_CDROM_PKTCDVD=m
+CONFIG_CDROM_PKTCDVD_WCACHE=y
+CONFIG_ATA_OVER_ETH=m
+CONFIG_IDE=y
+CONFIG_BLK_DEV_IDECD=y
+CONFIG_BLK_DEV_PLATFORM=y
+CONFIG_BLK_DEV_GENERIC=y
+CONFIG_BLK_DEV_SIIMAGE=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_ST=m
+CONFIG_BLK_DEV_SR=m
+CONFIG_CHR_DEV_SG=y
+CONFIG_CHR_DEV_SCH=m
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_FC_ATTRS=y
+CONFIG_SCSI_SAS_LIBSAS=m
+CONFIG_ISCSI_TCP=m
+CONFIG_ISCSI_BOOT_SYSFS=m
+CONFIG_FUSION=y
+CONFIG_FUSION_SPI=y
+CONFIG_FUSION_SAS=y
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=m
+CONFIG_NETCONSOLE=m
+CONFIG_TUN=y
+CONFIG_E1000=y
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_MPPE=m
+CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+# CONFIG_WLAN is not set
+CONFIG_INPUT_FF_MEMLESS=m
+# CONFIG_KEYBOARD_ATKBD is not set
+# CONFIG_KEYBOARD_HIL_OLD is not set
+# CONFIG_KEYBOARD_HIL is not set
+CONFIG_MOUSE_PS2=m
+CONFIG_INPUT_MISC=y
+CONFIG_INPUT_CM109=m
+CONFIG_SERIO_SERPORT=m
+CONFIG_SERIO_PARKBD=m
+CONFIG_SERIO_GSCPS2=m
+# CONFIG_HP_SDC is not set
+CONFIG_SERIO_PCIPS2=m
+CONFIG_SERIO_LIBPS2=y
+CONFIG_SERIO_RAW=m
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=8
+CONFIG_SERIAL_8250_RUNTIME_UARTS=8
+CONFIG_SERIAL_8250_EXTENDED=y
+# CONFIG_SERIAL_MUX is not set
+CONFIG_SERIAL_JSM=m
+CONFIG_PRINTER=y
+CONFIG_HW_RANDOM=y
+CONFIG_RAW_DRIVER=m
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_SSB=m
+CONFIG_SSB_DRIVER_PCICORE=y
+CONFIG_AGP=y
+CONFIG_AGP_PARISC=y
+CONFIG_DRM=y
+CONFIG_DRM_RADEON=y
+CONFIG_FIRMWARE_EDID=y
+CONFIG_FB_FOREIGN_ENDIAN=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_TILEBLITTING=y
+# CONFIG_FB_STI is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+# CONFIG_LCD_CLASS_DEVICE is not set
+# CONFIG_BACKLIGHT_GENERIC is not set
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_STI_CONSOLE is not set
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+CONFIG_SOUND=m
+CONFIG_SND=m
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_PCM_OSS=m
+CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_VERBOSE_PRINTK=y
+CONFIG_SND_AD1889=m
+# CONFIG_SND_USB is not set
+# CONFIG_SND_GSC is not set
+CONFIG_HID_A4TECH=m
+CONFIG_HID_APPLE=m
+CONFIG_HID_BELKIN=m
+CONFIG_HID_CHERRY=m
+CONFIG_HID_CHICONY=m
+CONFIG_HID_CYPRESS=m
+CONFIG_HID_DRAGONRISE=m
+CONFIG_HID_EZKEY=m
+CONFIG_HID_KYE=m
+CONFIG_HID_GYRATION=m
+CONFIG_HID_TWINHAN=m
+CONFIG_HID_KENSINGTON=m
+CONFIG_HID_LOGITECH=m
+CONFIG_HID_LOGITECH_DJ=m
+CONFIG_HID_MICROSOFT=m
+CONFIG_HID_MONTEREY=m
+CONFIG_HID_NTRIG=m
+CONFIG_HID_ORTEK=m
+CONFIG_HID_PANTHERLORD=m
+CONFIG_HID_PETALYNX=m
+CONFIG_HID_SAMSUNG=m
+CONFIG_HID_SUNPLUS=m
+CONFIG_HID_GREENASIA=m
+CONFIG_HID_SMARTJOYPLUS=m
+CONFIG_HID_TOPSEED=m
+CONFIG_HID_THRUSTMASTER=m
+CONFIG_HID_ZEROPLUS=m
+CONFIG_USB_HID=m
+CONFIG_USB=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_STORAGE=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+CONFIG_EXT4_FS=m
+CONFIG_REISERFS_FS=m
+CONFIG_REISERFS_PROC_INFO=y
+CONFIG_XFS_FS=m
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_QUOTA=y
+CONFIG_QFMT_V1=m
+CONFIG_QFMT_V2=m
+CONFIG_AUTOFS4_FS=m
+CONFIG_FUSE_FS=m
+CONFIG_ISO9660_FS=y
+CONFIG_JOLIET=y
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=m
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_XATTR=y
+CONFIG_NFS_FS=m
+CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_737=m
+CONFIG_NLS_CODEPAGE_775=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_CODEPAGE_852=m
+CONFIG_NLS_CODEPAGE_855=m
+CONFIG_NLS_CODEPAGE_857=m
+CONFIG_NLS_CODEPAGE_860=m
+CONFIG_NLS_CODEPAGE_861=m
+CONFIG_NLS_CODEPAGE_862=m
+CONFIG_NLS_CODEPAGE_863=m
+CONFIG_NLS_CODEPAGE_864=m
+CONFIG_NLS_CODEPAGE_865=m
+CONFIG_NLS_CODEPAGE_866=m
+CONFIG_NLS_CODEPAGE_869=m
+CONFIG_NLS_CODEPAGE_936=m
+CONFIG_NLS_CODEPAGE_950=m
+CONFIG_NLS_CODEPAGE_932=m
+CONFIG_NLS_CODEPAGE_949=m
+CONFIG_NLS_CODEPAGE_874=m
+CONFIG_NLS_ISO8859_8=m
+CONFIG_NLS_CODEPAGE_1250=m
+CONFIG_NLS_CODEPAGE_1251=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_2=m
+CONFIG_NLS_ISO8859_3=m
+CONFIG_NLS_ISO8859_4=m
+CONFIG_NLS_ISO8859_5=m
+CONFIG_NLS_ISO8859_6=m
+CONFIG_NLS_ISO8859_7=m
+CONFIG_NLS_ISO8859_9=m
+CONFIG_NLS_ISO8859_13=m
+CONFIG_NLS_ISO8859_14=m
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_KOI8_R=m
+CONFIG_NLS_KOI8_U=m
+CONFIG_NLS_UTF8=m
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_SLAB=y
+CONFIG_DEBUG_SLAB_LEAK=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DEBUG_STACKOVERFLOW=y
+CONFIG_LOCKUP_DETECTOR=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_DEBUG_RT_MUTEXES=y
+CONFIG_RT_MUTEX_TESTER=y
+CONFIG_PROVE_RCU_DELAY=y
+CONFIG_DEBUG_BLOCK_EXT_DEVT=y
+CONFIG_LATENCYTOP=y
+CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
+CONFIG_KEYS=y
+# CONFIG_CRYPTO_HW is not set
+CONFIG_FONTS=y
diff --git a/arch/parisc/include/asm/parisc-device.h b/arch/parisc/include/asm/parisc-device.h
index 9afdad6c2ffb..eaf4dc1c7294 100644
--- a/arch/parisc/include/asm/parisc-device.h
+++ b/arch/parisc/include/asm/parisc-device.h
@@ -23,6 +23,7 @@ struct parisc_device {
/* generic info returned from pdc_pat_cell_module() */
unsigned long mod_info; /* PAT specific - Misc Module info */
unsigned long pmod_loc; /* physical Module location */
+ unsigned long mod0;
#endif
u64 dma_mask; /* DMA mask for I/O */
struct device dev;
@@ -61,4 +62,6 @@ parisc_get_drvdata(struct parisc_device *d)
extern struct bus_type parisc_bus_type;
+int iosapic_serial_irq(struct parisc_device *dev);
+
#endif /*_ASM_PARISC_PARISC_DEVICE_H_*/
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 2e65aa54bd10..c035673209f7 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -71,18 +71,27 @@ flush_cache_all_local(void)
}
EXPORT_SYMBOL(flush_cache_all_local);
+/* Virtual address of pfn. */
+#define pfn_va(pfn) __va(PFN_PHYS(pfn))
+
void
update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
{
- struct page *page = pte_page(*ptep);
+ unsigned long pfn = pte_pfn(*ptep);
+ struct page *page;
- if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
- test_bit(PG_dcache_dirty, &page->flags)) {
+ /* We don't have pte special. As a result, we can be called with
+ an invalid pfn and we don't need to flush the kernel dcache page.
+ This occurs with FireGL card in C8000. */
+ if (!pfn_valid(pfn))
+ return;
- flush_kernel_dcache_page(page);
+ page = pfn_to_page(pfn);
+ if (page_mapping(page) && test_bit(PG_dcache_dirty, &page->flags)) {
+ flush_kernel_dcache_page_addr(pfn_va(pfn));
clear_bit(PG_dcache_dirty, &page->flags);
} else if (parisc_requires_coherency())
- flush_kernel_dcache_page(page);
+ flush_kernel_dcache_page_addr(pfn_va(pfn));
}
void
@@ -495,44 +504,42 @@ static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
void flush_cache_mm(struct mm_struct *mm)
{
+ struct vm_area_struct *vma;
+ pgd_t *pgd;
+
/* Flushing the whole cache on each cpu takes forever on
rp3440, etc. So, avoid it if the mm isn't too big. */
- if (mm_total_size(mm) < parisc_cache_flush_threshold) {
- struct vm_area_struct *vma;
-
- if (mm->context == mfsp(3)) {
- for (vma = mm->mmap; vma; vma = vma->vm_next) {
- flush_user_dcache_range_asm(vma->vm_start,
- vma->vm_end);
- if (vma->vm_flags & VM_EXEC)
- flush_user_icache_range_asm(
- vma->vm_start, vma->vm_end);
- }
- } else {
- pgd_t *pgd = mm->pgd;
-
- for (vma = mm->mmap; vma; vma = vma->vm_next) {
- unsigned long addr;
-
- for (addr = vma->vm_start; addr < vma->vm_end;
- addr += PAGE_SIZE) {
- pte_t *ptep = get_ptep(pgd, addr);
- if (ptep != NULL) {
- pte_t pte = *ptep;
- __flush_cache_page(vma, addr,
- page_to_phys(pte_page(pte)));
- }
- }
- }
+ if (mm_total_size(mm) >= parisc_cache_flush_threshold) {
+ flush_cache_all();
+ return;
+ }
+
+ if (mm->context == mfsp(3)) {
+ for (vma = mm->mmap; vma; vma = vma->vm_next) {
+ flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
+ if ((vma->vm_flags & VM_EXEC) == 0)
+ continue;
+ flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
}
return;
}
-#ifdef CONFIG_SMP
- flush_cache_all();
-#else
- flush_cache_all_local();
-#endif
+ pgd = mm->pgd;
+ for (vma = mm->mmap; vma; vma = vma->vm_next) {
+ unsigned long addr;
+
+ for (addr = vma->vm_start; addr < vma->vm_end;
+ addr += PAGE_SIZE) {
+ unsigned long pfn;
+ pte_t *ptep = get_ptep(pgd, addr);
+ if (!ptep)
+ continue;
+ pfn = pte_pfn(*ptep);
+ if (!pfn_valid(pfn))
+ continue;
+ __flush_cache_page(vma, addr, PFN_PHYS(pfn));
+ }
+ }
}
void
@@ -556,33 +563,32 @@ flush_user_icache_range(unsigned long start, unsigned long end)
void flush_cache_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
+ unsigned long addr;
+ pgd_t *pgd;
+
BUG_ON(!vma->vm_mm->context);
- if ((end - start) < parisc_cache_flush_threshold) {
- if (vma->vm_mm->context == mfsp(3)) {
- flush_user_dcache_range_asm(start, end);
- if (vma->vm_flags & VM_EXEC)
- flush_user_icache_range_asm(start, end);
- } else {
- unsigned long addr;
- pgd_t *pgd = vma->vm_mm->pgd;
-
- for (addr = start & PAGE_MASK; addr < end;
- addr += PAGE_SIZE) {
- pte_t *ptep = get_ptep(pgd, addr);
- if (ptep != NULL) {
- pte_t pte = *ptep;
- flush_cache_page(vma,
- addr, pte_pfn(pte));
- }
- }
- }
- } else {
-#ifdef CONFIG_SMP
+ if ((end - start) >= parisc_cache_flush_threshold) {
flush_cache_all();
-#else
- flush_cache_all_local();
-#endif
+ return;
+ }
+
+ if (vma->vm_mm->context == mfsp(3)) {
+ flush_user_dcache_range_asm(start, end);
+ if (vma->vm_flags & VM_EXEC)
+ flush_user_icache_range_asm(start, end);
+ return;
+ }
+
+ pgd = vma->vm_mm->pgd;
+ for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+ unsigned long pfn;
+ pte_t *ptep = get_ptep(pgd, addr);
+ if (!ptep)
+ continue;
+ pfn = pte_pfn(*ptep);
+ if (pfn_valid(pfn))
+ __flush_cache_page(vma, addr, PFN_PHYS(pfn));
}
}
@@ -591,9 +597,10 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
{
BUG_ON(!vma->vm_mm->context);
- flush_tlb_page(vma, vmaddr);
- __flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
-
+ if (pfn_valid(pfn)) {
+ flush_tlb_page(vma, vmaddr);
+ __flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
+ }
}
#ifdef CONFIG_PARISC_TMPALIAS
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index 3295ef4a185d..f0b6722fc706 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -211,6 +211,7 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
/* REVISIT: who is the consumer of this? not sure yet... */
dev->mod_info = pa_pdc_cell->mod_info; /* pass to PAT_GET_ENTITY() */
dev->pmod_loc = pa_pdc_cell->mod_location;
+ dev->mod0 = pa_pdc_cell->mod[0];
register_parisc_device(dev); /* advertise device */
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 940188d1942c..07349b002687 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -56,13 +56,6 @@
#define A(__x) ((unsigned long)(__x))
/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-#ifdef CONFIG_64BIT
-#include "sys32.h"
-#endif
-
-/*
* Do a signal return - restore sigcontext.
*/
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 33eca1b04926..6c6a271a6140 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -34,7 +34,6 @@
#include <asm/uaccess.h>
#include "signal32.h"
-#include "sys32.h"
#define DEBUG_COMPAT_SIG 0
#define DEBUG_COMPAT_SIG_LEVEL 2
diff --git a/arch/parisc/kernel/sys32.h b/arch/parisc/kernel/sys32.h
deleted file mode 100644
index 60dd470f39f8..000000000000
--- a/arch/parisc/kernel/sys32.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (C) 2002 Richard Hirst <rhirst at parisc-linux.org>
- * Copyright (C) 2003 James Bottomley <jejb at parisc-linux.org>
- * Copyright (C) 2003 Randolph Chung <tausq with parisc-linux.org>
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#ifndef _PARISC64_KERNEL_SYS32_H
-#define _PARISC64_KERNEL_SYS32_H
-
-#include <linux/compat.h>
-
-/* Call a kernel syscall which will use kernel space instead of user
- * space for its copy_to/from_user.
- */
-#define KERNEL_SYSCALL(ret, syscall, args...) \
-{ \
- mm_segment_t old_fs = get_fs(); \
- set_fs(KERNEL_DS); \
- ret = syscall(args); \
- set_fs (old_fs); \
-}
-
-#endif
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index a134ff4da12e..bb9f3b64de55 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -42,8 +42,6 @@
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
-#include "sys32.h"
-
#undef DEBUG
#ifdef DEBUG
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index c86fcb92358e..0e8cfd09da2f 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -58,7 +58,7 @@ CONFIG_SCHED_SMT=y
CONFIG_PPC_DENORMALISATION=y
CONFIG_PCCARD=y
CONFIG_ELECTRA_CF=y
-CONFIG_HOTPLUG_PCI=m
+CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_RPA=m
CONFIG_HOTPLUG_PCI_RPA_DLPAR=m
CONFIG_PACKET=y
diff --git a/arch/powerpc/configs/ppc64e_defconfig b/arch/powerpc/configs/ppc64e_defconfig
index 4b20f76172e2..0085dc4642c5 100644
--- a/arch/powerpc/configs/ppc64e_defconfig
+++ b/arch/powerpc/configs/ppc64e_defconfig
@@ -32,7 +32,7 @@ CONFIG_IRQ_ALL_CPUS=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_PCI_MSI=y
CONFIG_PCCARD=y
-CONFIG_HOTPLUG_PCI=m
+CONFIG_HOTPLUG_PCI=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM_USER=m
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index bea8587c3af5..1d4b9763895d 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -53,7 +53,7 @@ CONFIG_PPC_64K_PAGES=y
CONFIG_PPC_SUBPAGE_PROT=y
CONFIG_SCHED_SMT=y
CONFIG_PPC_DENORMALISATION=y
-CONFIG_HOTPLUG_PCI=m
+CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_RPA=m
CONFIG_HOTPLUG_PCI_RPA_DLPAR=m
CONFIG_PACKET=y
diff --git a/arch/powerpc/include/asm/perf_event_server.h b/arch/powerpc/include/asm/perf_event_server.h
index 2dd7bfc459be..8b2492644754 100644
--- a/arch/powerpc/include/asm/perf_event_server.h
+++ b/arch/powerpc/include/asm/perf_event_server.h
@@ -12,6 +12,7 @@
#include <linux/types.h>
#include <asm/hw_irq.h>
#include <linux/device.h>
+#include <uapi/asm/perf_event.h>
#define MAX_HWEVENTS 8
#define MAX_EVENT_ALTERNATIVES 8
@@ -69,11 +70,6 @@ struct power_pmu {
#define PPMU_LIMITED_PMC_REQD 2 /* have to put this on a limited PMC */
#define PPMU_ONLY_COUNT_RUN 4 /* only counting in run state */
-/*
- * We use the event config bit 63 as a flag to request EBB.
- */
-#define EVENT_CONFIG_EBB_SHIFT 63
-
extern int register_power_pmu(struct power_pmu *);
struct pt_regs;
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
index ffbaabebcdca..48cfc858abd6 100644
--- a/arch/powerpc/include/asm/smp.h
+++ b/arch/powerpc/include/asm/smp.h
@@ -145,6 +145,10 @@ extern void __cpu_die(unsigned int cpu);
#define smp_setup_cpu_maps()
static inline void inhibit_secondary_onlining(void) {}
static inline void uninhibit_secondary_onlining(void) {}
+static inline const struct cpumask *cpu_sibling_mask(int cpu)
+{
+ return cpumask_of(cpu);
+}
#endif /* CONFIG_SMP */
diff --git a/arch/powerpc/include/uapi/asm/Kbuild b/arch/powerpc/include/uapi/asm/Kbuild
index 5182c8622b54..48be855ef37b 100644
--- a/arch/powerpc/include/uapi/asm/Kbuild
+++ b/arch/powerpc/include/uapi/asm/Kbuild
@@ -20,6 +20,7 @@ header-y += mman.h
header-y += msgbuf.h
header-y += nvram.h
header-y += param.h
+header-y += perf_event.h
header-y += poll.h
header-y += posix_types.h
header-y += ps3fb.h
diff --git a/arch/powerpc/include/uapi/asm/perf_event.h b/arch/powerpc/include/uapi/asm/perf_event.h
new file mode 100644
index 000000000000..80a4d40cf5bc
--- /dev/null
+++ b/arch/powerpc/include/uapi/asm/perf_event.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright 2013 Michael Ellerman, IBM Corp.
+ *
+ * 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; version 2 of the
+ * License.
+ */
+
+#ifndef _UAPI_ASM_POWERPC_PERF_EVENT_H
+#define _UAPI_ASM_POWERPC_PERF_EVENT_H
+
+/*
+ * We use bit 63 of perf_event_attr.config as a flag to request EBB.
+ */
+#define PERF_EVENT_CONFIG_EBB_SHIFT 63
+
+#endif /* _UAPI_ASM_POWERPC_PERF_EVENT_H */
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 2e51cde616d2..c69440cef7af 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -362,7 +362,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_printf(p, "%10u ", per_cpu(irq_stat, j).spurious_irqs);
seq_printf(p, " Spurious interrupts\n");
- seq_printf(p, "%*s: ", prec, "CNT");
+ seq_printf(p, "%*s: ", prec, "PMI");
for_each_online_cpu(j)
seq_printf(p, "%10u ", per_cpu(irq_stat, j).pmu_irqs);
seq_printf(p, " Performance monitoring interrupts\n");
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 08397217e8ac..5850798826cd 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -27,6 +27,7 @@
#include <linux/seq_file.h>
#include <linux/uaccess.h>
#include <linux/slab.h>
+#include <asm/cputhreads.h>
#include <asm/sparsemem.h>
#include <asm/prom.h>
#include <asm/smp.h>
@@ -1318,7 +1319,8 @@ static int update_cpu_associativity_changes_mask(void)
}
}
if (changed) {
- cpumask_set_cpu(cpu, changes);
+ cpumask_or(changes, changes, cpu_sibling_mask(cpu));
+ cpu = cpu_last_thread_sibling(cpu);
}
}
@@ -1426,7 +1428,7 @@ static int update_cpu_topology(void *data)
if (!data)
return -EINVAL;
- cpu = get_cpu();
+ cpu = smp_processor_id();
for (update = data; update; update = update->next) {
if (cpu != update->cpu)
@@ -1446,12 +1448,12 @@ static int update_cpu_topology(void *data)
*/
int arch_update_cpu_topology(void)
{
- unsigned int cpu, changed = 0;
+ unsigned int cpu, sibling, changed = 0;
struct topology_update_data *updates, *ud;
unsigned int associativity[VPHN_ASSOC_BUFSIZE] = {0};
cpumask_t updated_cpus;
struct device *dev;
- int weight, i = 0;
+ int weight, new_nid, i = 0;
weight = cpumask_weight(&cpu_associativity_changes_mask);
if (!weight)
@@ -1464,19 +1466,46 @@ int arch_update_cpu_topology(void)
cpumask_clear(&updated_cpus);
for_each_cpu(cpu, &cpu_associativity_changes_mask) {
- ud = &updates[i++];
- ud->cpu = cpu;
- vphn_get_associativity(cpu, associativity);
- ud->new_nid = associativity_to_nid(associativity);
-
- if (ud->new_nid < 0 || !node_online(ud->new_nid))
- ud->new_nid = first_online_node;
+ /*
+ * If siblings aren't flagged for changes, updates list
+ * will be too short. Skip on this update and set for next
+ * update.
+ */
+ if (!cpumask_subset(cpu_sibling_mask(cpu),
+ &cpu_associativity_changes_mask)) {
+ pr_info("Sibling bits not set for associativity "
+ "change, cpu%d\n", cpu);
+ cpumask_or(&cpu_associativity_changes_mask,
+ &cpu_associativity_changes_mask,
+ cpu_sibling_mask(cpu));
+ cpu = cpu_last_thread_sibling(cpu);
+ continue;
+ }
- ud->old_nid = numa_cpu_lookup_table[cpu];
- cpumask_set_cpu(cpu, &updated_cpus);
+ /* Use associativity from first thread for all siblings */
+ vphn_get_associativity(cpu, associativity);
+ new_nid = associativity_to_nid(associativity);
+ if (new_nid < 0 || !node_online(new_nid))
+ new_nid = first_online_node;
+
+ if (new_nid == numa_cpu_lookup_table[cpu]) {
+ cpumask_andnot(&cpu_associativity_changes_mask,
+ &cpu_associativity_changes_mask,
+ cpu_sibling_mask(cpu));
+ cpu = cpu_last_thread_sibling(cpu);
+ continue;
+ }
- if (i < weight)
- ud->next = &updates[i];
+ for_each_cpu(sibling, cpu_sibling_mask(cpu)) {
+ ud = &updates[i++];
+ ud->cpu = sibling;
+ ud->new_nid = new_nid;
+ ud->old_nid = numa_cpu_lookup_table[sibling];
+ cpumask_set_cpu(sibling, &updated_cpus);
+ if (i < weight)
+ ud->next = &updates[i];
+ }
+ cpu = cpu_last_thread_sibling(cpu);
}
stop_machine(update_cpu_topology, &updates[0], &updated_cpus);
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 24a45f91c65f..eeae308cf982 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -484,7 +484,7 @@ static bool is_ebb_event(struct perf_event *event)
* use bit 63 of the event code for something else if they wish.
*/
return (ppmu->flags & PPMU_EBB) &&
- ((event->attr.config >> EVENT_CONFIG_EBB_SHIFT) & 1);
+ ((event->attr.config >> PERF_EVENT_CONFIG_EBB_SHIFT) & 1);
}
static int ebb_event_check(struct perf_event *event)
diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c
index 7466374d2787..2ee4a707f0df 100644
--- a/arch/powerpc/perf/power8-pmu.c
+++ b/arch/powerpc/perf/power8-pmu.c
@@ -118,7 +118,7 @@
(EVENT_UNIT_MASK << EVENT_UNIT_SHIFT) | \
(EVENT_COMBINE_MASK << EVENT_COMBINE_SHIFT) | \
(EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | \
- (EVENT_EBB_MASK << EVENT_CONFIG_EBB_SHIFT) | \
+ (EVENT_EBB_MASK << PERF_EVENT_CONFIG_EBB_SHIFT) | \
EVENT_PSEL_MASK)
/* MMCRA IFM bits - POWER8 */
@@ -233,10 +233,10 @@ static int power8_get_constraint(u64 event, unsigned long *maskp, unsigned long
pmc = (event >> EVENT_PMC_SHIFT) & EVENT_PMC_MASK;
unit = (event >> EVENT_UNIT_SHIFT) & EVENT_UNIT_MASK;
cache = (event >> EVENT_CACHE_SEL_SHIFT) & EVENT_CACHE_SEL_MASK;
- ebb = (event >> EVENT_CONFIG_EBB_SHIFT) & EVENT_EBB_MASK;
+ ebb = (event >> PERF_EVENT_CONFIG_EBB_SHIFT) & EVENT_EBB_MASK;
/* Clear the EBB bit in the event, so event checks work below */
- event &= ~(EVENT_EBB_MASK << EVENT_CONFIG_EBB_SHIFT);
+ event &= ~(EVENT_EBB_MASK << PERF_EVENT_CONFIG_EBB_SHIFT);
if (pmc) {
if (pmc > 6)
diff --git a/arch/sh/configs/sh03_defconfig b/arch/sh/configs/sh03_defconfig
index 2051821724c6..0cf4097b71e8 100644
--- a/arch/sh/configs/sh03_defconfig
+++ b/arch/sh/configs/sh03_defconfig
@@ -22,7 +22,7 @@ CONFIG_PREEMPT=y
CONFIG_CMDLINE_OVERWRITE=y
CONFIG_CMDLINE="console=ttySC1,115200 mem=64M root=/dev/nfs"
CONFIG_PCI=y
-CONFIG_HOTPLUG_PCI=m
+CONFIG_HOTPLUG_PCI=y
CONFIG_BINFMT_MISC=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 163d7a4451f0..cbe6b9e404ce 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -32,11 +32,20 @@
#define MCI_STATUS_PCC (1ULL<<57) /* processor context corrupt */
#define MCI_STATUS_S (1ULL<<56) /* Signaled machine check */
#define MCI_STATUS_AR (1ULL<<55) /* Action required */
-#define MCACOD 0xffff /* MCA Error Code */
+
+/*
+ * Note that the full MCACOD field of IA32_MCi_STATUS MSR is
+ * bits 15:0. But bit 12 is the 'F' bit, defined for corrected
+ * errors to indicate that errors are being filtered by hardware.
+ * We should mask out bit 12 when looking for specific signatures
+ * of uncorrected errors - so the F bit is deliberately skipped
+ * in this #define.
+ */
+#define MCACOD 0xefff /* MCA Error Code */
/* Architecturally defined codes from SDM Vol. 3B Chapter 15 */
#define MCACOD_SCRUB 0x00C0 /* 0xC0-0xCF Memory Scrubbing */
-#define MCACOD_SCRUBMSK 0xfff0
+#define MCACOD_SCRUBMSK 0xeff0 /* Skip bit 12 ('F' bit) */
#define MCACOD_L3WB 0x017A /* L3 Explicit Writeback */
#define MCACOD_DATA 0x0134 /* Data Load */
#define MCACOD_INSTR 0x0150 /* Instruction Fetch */
diff --git a/arch/x86/kernel/cpu/mcheck/mce-severity.c b/arch/x86/kernel/cpu/mcheck/mce-severity.c
index e2703520d120..c370e1c4468b 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-severity.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-severity.c
@@ -111,8 +111,8 @@ static struct severity {
#ifdef CONFIG_MEMORY_FAILURE
MCESEV(
KEEP, "Action required but unaffected thread is continuable",
- SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCI_ADDR|MCACOD, MCI_UC_SAR|MCI_ADDR),
- MCGMASK(MCG_STATUS_RIPV, MCG_STATUS_RIPV)
+ SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCI_ADDR, MCI_UC_SAR|MCI_ADDR),
+ MCGMASK(MCG_STATUS_RIPV|MCG_STATUS_EIPV, MCG_STATUS_RIPV)
),
MCESEV(
AR, "Action required: data load error in a user process",
diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c
index 643b8b5eee86..8244f5ec2f4c 100644
--- a/arch/x86/platform/ce4100/ce4100.c
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/irq.h>
#include <linux/module.h>
+#include <linux/reboot.h>
#include <linux/serial_reg.h>
#include <linux/serial_8250.h>
#include <linux/reboot.h>