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-rw-r--r--arch/tile/configs/tile_defconfig15
-rw-r--r--arch/tile/include/arch/abi.h69
-rw-r--r--arch/tile/include/arch/interrupts_32.h2
-rw-r--r--arch/tile/include/asm/atomic_32.h17
-rw-r--r--arch/tile/include/asm/compat.h55
-rw-r--r--arch/tile/include/asm/elf.h6
-rw-r--r--arch/tile/include/asm/futex.h17
-rw-r--r--arch/tile/include/asm/page.h9
-rw-r--r--arch/tile/include/asm/pgtable.h9
-rw-r--r--arch/tile/include/asm/pgtable_32.h12
-rw-r--r--arch/tile/include/asm/ptrace.h5
-rw-r--r--arch/tile/include/asm/sections.h9
-rw-r--r--arch/tile/include/asm/signal.h1
-rw-r--r--arch/tile/include/asm/spinlock_32.h3
-rw-r--r--arch/tile/include/asm/stack.h6
-rw-r--r--arch/tile/include/asm/syscalls.h72
-rw-r--r--arch/tile/include/asm/system.h30
-rw-r--r--arch/tile/include/asm/thread_info.h8
-rw-r--r--arch/tile/include/asm/traps.h26
-rw-r--r--arch/tile/include/asm/uaccess.h22
-rw-r--r--arch/tile/include/asm/unistd.h9
-rw-r--r--arch/tile/kernel/backtrace.c81
-rw-r--r--arch/tile/kernel/compat.c28
-rw-r--r--arch/tile/kernel/compat_signal.c10
-rw-r--r--arch/tile/kernel/early_printk.c2
-rw-r--r--arch/tile/kernel/entry.S4
-rw-r--r--arch/tile/kernel/machine_kexec.c38
-rw-r--r--arch/tile/kernel/messaging.c5
-rw-r--r--arch/tile/kernel/module.c16
-rw-r--r--arch/tile/kernel/process.c110
-rw-r--r--arch/tile/kernel/ptrace.c3
-rw-r--r--arch/tile/kernel/reboot.c7
-rw-r--r--arch/tile/kernel/setup.c132
-rw-r--r--arch/tile/kernel/signal.c19
-rw-r--r--arch/tile/kernel/single_step.c75
-rw-r--r--arch/tile/kernel/smpboot.c37
-rw-r--r--arch/tile/kernel/stack.c43
-rw-r--r--arch/tile/kernel/sys.c18
-rw-r--r--arch/tile/kernel/time.c7
-rw-r--r--arch/tile/kernel/traps.c130
-rw-r--r--arch/tile/kernel/vmlinux.lds.S4
-rw-r--r--arch/tile/lib/atomic_32.c53
-rw-r--r--arch/tile/lib/cpumask.c1
-rw-r--r--arch/tile/lib/exports.c1
-rw-r--r--arch/tile/lib/memcpy_tile64.c6
-rw-r--r--arch/tile/lib/memmove_32.c2
-rw-r--r--arch/tile/lib/memset_32.c3
-rw-r--r--arch/tile/lib/spinlock_common.h2
-rw-r--r--arch/tile/lib/uaccess.c3
-rw-r--r--arch/tile/mm/elf.c4
-rw-r--r--arch/tile/mm/fault.c64
-rw-r--r--arch/tile/mm/highmem.c2
-rw-r--r--arch/tile/mm/homecache.c18
-rw-r--r--arch/tile/mm/hugetlbpage.c2
-rw-r--r--arch/tile/mm/init.c99
-rw-r--r--arch/tile/mm/pgtable.c46
56 files changed, 798 insertions, 679 deletions
diff --git a/arch/tile/configs/tile_defconfig b/arch/tile/configs/tile_defconfig
index 74a5be39e8f2..f34c70b46c64 100644
--- a/arch/tile/configs/tile_defconfig
+++ b/arch/tile/configs/tile_defconfig
@@ -1,7 +1,7 @@
1# 1#
2# Automatically generated make config: don't edit 2# Automatically generated make config: don't edit
3# Linux kernel version: 2.6.34 3# Linux kernel version: 2.6.34
4# Fri May 28 17:51:43 2010 4# Thu Jun 3 13:20:05 2010
5# 5#
6CONFIG_MMU=y 6CONFIG_MMU=y
7CONFIG_GENERIC_CSUM=y 7CONFIG_GENERIC_CSUM=y
@@ -9,16 +9,13 @@ CONFIG_GENERIC_HARDIRQS=y
9CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y 9CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
10CONFIG_GENERIC_IRQ_PROBE=y 10CONFIG_GENERIC_IRQ_PROBE=y
11CONFIG_GENERIC_PENDING_IRQ=y 11CONFIG_GENERIC_PENDING_IRQ=y
12CONFIG_ZONE_DMA=y
13CONFIG_SEMAPHORE_SLEEPERS=y 12CONFIG_SEMAPHORE_SLEEPERS=y
14CONFIG_CC_OPTIMIZE_FOR_SIZE=y
15CONFIG_HAVE_ARCH_ALLOC_REMAP=y 13CONFIG_HAVE_ARCH_ALLOC_REMAP=y
16CONFIG_HAVE_SETUP_PER_CPU_AREA=y 14CONFIG_HAVE_SETUP_PER_CPU_AREA=y
17CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y 15CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
18CONFIG_SYS_SUPPORTS_HUGETLBFS=y 16CONFIG_SYS_SUPPORTS_HUGETLBFS=y
19CONFIG_GENERIC_TIME=y 17CONFIG_GENERIC_TIME=y
20CONFIG_GENERIC_CLOCKEVENTS=y 18CONFIG_GENERIC_CLOCKEVENTS=y
21CONFIG_CLOCKSOURCE_WATCHDOG=y
22CONFIG_RWSEM_GENERIC_SPINLOCK=y 19CONFIG_RWSEM_GENERIC_SPINLOCK=y
23CONFIG_DEFAULT_MIGRATION_COST=10000000 20CONFIG_DEFAULT_MIGRATION_COST=10000000
24CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y 21CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
@@ -32,7 +29,6 @@ CONFIG_STRICT_DEVMEM=y
32CONFIG_SMP=y 29CONFIG_SMP=y
33CONFIG_WERROR=y 30CONFIG_WERROR=y
34# CONFIG_DEBUG_COPY_FROM_USER is not set 31# CONFIG_DEBUG_COPY_FROM_USER is not set
35CONFIG_SERIAL_CONSOLE=y
36CONFIG_HVC_TILE=y 32CONFIG_HVC_TILE=y
37CONFIG_TILE=y 33CONFIG_TILE=y
38# CONFIG_TILEGX is not set 34# CONFIG_TILEGX is not set
@@ -86,6 +82,7 @@ CONFIG_INITRAMFS_COMPRESSION_NONE=y
86# CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set 82# CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set
87# CONFIG_INITRAMFS_COMPRESSION_LZMA is not set 83# CONFIG_INITRAMFS_COMPRESSION_LZMA is not set
88# CONFIG_INITRAMFS_COMPRESSION_LZO is not set 84# CONFIG_INITRAMFS_COMPRESSION_LZO is not set
85CONFIG_CC_OPTIMIZE_FOR_SIZE=y
89CONFIG_SYSCTL=y 86CONFIG_SYSCTL=y
90CONFIG_ANON_INODES=y 87CONFIG_ANON_INODES=y
91CONFIG_EMBEDDED=y 88CONFIG_EMBEDDED=y
@@ -220,7 +217,7 @@ CONFIG_PAGEFLAGS_EXTENDED=y
220CONFIG_SPLIT_PTLOCK_CPUS=4 217CONFIG_SPLIT_PTLOCK_CPUS=4
221CONFIG_MIGRATION=y 218CONFIG_MIGRATION=y
222CONFIG_PHYS_ADDR_T_64BIT=y 219CONFIG_PHYS_ADDR_T_64BIT=y
223CONFIG_ZONE_DMA_FLAG=1 220CONFIG_ZONE_DMA_FLAG=0
224CONFIG_BOUNCE=y 221CONFIG_BOUNCE=y
225CONFIG_VIRT_TO_BUS=y 222CONFIG_VIRT_TO_BUS=y
226# CONFIG_KSM is not set 223# CONFIG_KSM is not set
@@ -232,10 +229,11 @@ CONFIG_FEEDBACK_USE=""
232CONFIG_VMALLOC_RESERVE=0x1000000 229CONFIG_VMALLOC_RESERVE=0x1000000
233CONFIG_HARDWALL=y 230CONFIG_HARDWALL=y
234CONFIG_MEMPROF=y 231CONFIG_MEMPROF=y
235CONFIG_XGBE_MAIN=y 232CONFIG_XGBE=y
236CONFIG_NET_TILE=y 233CONFIG_NET_TILE=y
237CONFIG_PSEUDO_NAPI=y 234CONFIG_PSEUDO_NAPI=y
238CONFIG_TILEPCI_ENDP=y 235CONFIG_TILEPCI_ENDP=y
236CONFIG_TILEPCI_HOST_SUBSET=m
239CONFIG_TILE_IDE_GPIO=y 237CONFIG_TILE_IDE_GPIO=y
240CONFIG_TILE_SOFTUART=y 238CONFIG_TILE_SOFTUART=y
241 239
@@ -244,6 +242,8 @@ CONFIG_TILE_SOFTUART=y
244# 242#
245CONFIG_PCI=y 243CONFIG_PCI=y
246CONFIG_PCI_DOMAINS=y 244CONFIG_PCI_DOMAINS=y
245# CONFIG_NO_IOMEM is not set
246# CONFIG_NO_IOPORT is not set
247# CONFIG_ARCH_SUPPORTS_MSI is not set 247# CONFIG_ARCH_SUPPORTS_MSI is not set
248CONFIG_PCI_DEBUG=y 248CONFIG_PCI_DEBUG=y
249# CONFIG_PCI_STUB is not set 249# CONFIG_PCI_STUB is not set
@@ -742,6 +742,7 @@ CONFIG_HVC_DRIVER=y
742# 742#
743# CONFIG_RAW_DRIVER is not set 743# CONFIG_RAW_DRIVER is not set
744# CONFIG_TCG_TPM is not set 744# CONFIG_TCG_TPM is not set
745CONFIG_DEVPORT=y
745CONFIG_I2C=y 746CONFIG_I2C=y
746CONFIG_I2C_BOARDINFO=y 747CONFIG_I2C_BOARDINFO=y
747CONFIG_I2C_COMPAT=y 748CONFIG_I2C_COMPAT=y
diff --git a/arch/tile/include/arch/abi.h b/arch/tile/include/arch/abi.h
index 7cdc47b3e02a..da8df5b9d914 100644
--- a/arch/tile/include/arch/abi.h
+++ b/arch/tile/include/arch/abi.h
@@ -1,26 +1,29 @@
1// Copyright 2010 Tilera Corporation. All Rights Reserved. 1/*
2// 2 * Copyright 2010 Tilera Corporation. All Rights Reserved.
3// This program is free software; you can redistribute it and/or 3 *
4// modify it under the terms of the GNU General Public License 4 * This program is free software; you can redistribute it and/or
5// as published by the Free Software Foundation, version 2. 5 * modify it under the terms of the GNU General Public License
6// 6 * as published by the Free Software Foundation, version 2.
7// This program is distributed in the hope that it will be useful, but 7 *
8// WITHOUT ANY WARRANTY; without even the implied warranty of 8 * This program is distributed in the hope that it will be useful, but
9// MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10// NON INFRINGEMENT. See the GNU General Public License for 10 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
11// more details. 11 * NON INFRINGEMENT. See the GNU General Public License for
12 12 * more details.
13//! @file 13 */
14//! 14
15//! ABI-related register definitions helpful when writing assembly code. 15/**
16//! 16 * @file
17 *
18 * ABI-related register definitions helpful when writing assembly code.
19 */
17 20
18#ifndef __ARCH_ABI_H__ 21#ifndef __ARCH_ABI_H__
19#define __ARCH_ABI_H__ 22#define __ARCH_ABI_H__
20 23
21#include <arch/chip.h> 24#include <arch/chip.h>
22 25
23// Registers 0 - 55 are "normal", but some perform special roles. 26/* Registers 0 - 55 are "normal", but some perform special roles. */
24 27
25#define TREG_FP 52 /**< Frame pointer. */ 28#define TREG_FP 52 /**< Frame pointer. */
26#define TREG_TP 53 /**< Thread pointer. */ 29#define TREG_TP 53 /**< Thread pointer. */
@@ -30,7 +33,7 @@
30/** Index of last normal general-purpose register. */ 33/** Index of last normal general-purpose register. */
31#define TREG_LAST_GPR 55 34#define TREG_LAST_GPR 55
32 35
33// Registers 56 - 62 are "special" network registers. 36/* Registers 56 - 62 are "special" network registers. */
34 37
35#define TREG_SN 56 /**< Static network access. */ 38#define TREG_SN 56 /**< Static network access. */
36#define TREG_IDN0 57 /**< IDN demux 0 access. */ 39#define TREG_IDN0 57 /**< IDN demux 0 access. */
@@ -40,7 +43,7 @@
40#define TREG_UDN2 61 /**< UDN demux 2 access. */ 43#define TREG_UDN2 61 /**< UDN demux 2 access. */
41#define TREG_UDN3 62 /**< UDN demux 3 access. */ 44#define TREG_UDN3 62 /**< UDN demux 3 access. */
42 45
43// Register 63 is the "special" zero register. 46/* Register 63 is the "special" zero register. */
44 47
45#define TREG_ZERO 63 /**< "Zero" register; always reads as "0". */ 48#define TREG_ZERO 63 /**< "Zero" register; always reads as "0". */
46 49
@@ -52,42 +55,44 @@
52#define TREG_SYSCALL_NR_NAME r10 55#define TREG_SYSCALL_NR_NAME r10
53 56
54 57
55//! The ABI requires callers to allocate a caller state save area of 58/**
56//! this many bytes at the bottom of each stack frame. 59 * The ABI requires callers to allocate a caller state save area of
57//! 60 * this many bytes at the bottom of each stack frame.
61 */
58#ifdef __tile__ 62#ifdef __tile__
59#define C_ABI_SAVE_AREA_SIZE (2 * __SIZEOF_POINTER__) 63#define C_ABI_SAVE_AREA_SIZE (2 * __SIZEOF_POINTER__)
60#endif 64#endif
61 65
62//! The operand to an 'info' opcode directing the backtracer to not 66/**
63//! try to find the calling frame. 67 * The operand to an 'info' opcode directing the backtracer to not
64//! 68 * try to find the calling frame.
69 */
65#define INFO_OP_CANNOT_BACKTRACE 2 70#define INFO_OP_CANNOT_BACKTRACE 2
66 71
67#ifndef __ASSEMBLER__ 72#ifndef __ASSEMBLER__
68#if CHIP_WORD_SIZE() > 32 73#if CHIP_WORD_SIZE() > 32
69 74
70//! Unsigned type that can hold a register. 75/** Unsigned type that can hold a register. */
71typedef unsigned long long uint_reg_t; 76typedef unsigned long long uint_reg_t;
72 77
73//! Signed type that can hold a register. 78/** Signed type that can hold a register. */
74typedef long long int_reg_t; 79typedef long long int_reg_t;
75 80
76//! String prefix to use for printf(). 81/** String prefix to use for printf(). */
77#define INT_REG_FMT "ll" 82#define INT_REG_FMT "ll"
78 83
79#elif !defined(__LP64__) /* avoid confusion with LP64 cross-build tools */ 84#elif !defined(__LP64__) /* avoid confusion with LP64 cross-build tools */
80 85
81//! Unsigned type that can hold a register. 86/** Unsigned type that can hold a register. */
82typedef unsigned long uint_reg_t; 87typedef unsigned long uint_reg_t;
83 88
84//! Signed type that can hold a register. 89/** Signed type that can hold a register. */
85typedef long int_reg_t; 90typedef long int_reg_t;
86 91
87//! String prefix to use for printf(). 92/** String prefix to use for printf(). */
88#define INT_REG_FMT "l" 93#define INT_REG_FMT "l"
89 94
90#endif 95#endif
91#endif /* __ASSEMBLER__ */ 96#endif /* __ASSEMBLER__ */
92 97
93#endif // !__ARCH_ABI_H__ 98#endif /* !__ARCH_ABI_H__ */
diff --git a/arch/tile/include/arch/interrupts_32.h b/arch/tile/include/arch/interrupts_32.h
index feffada705f0..9d0bfa7e59be 100644
--- a/arch/tile/include/arch/interrupts_32.h
+++ b/arch/tile/include/arch/interrupts_32.h
@@ -301,4 +301,4 @@
301 INT_MASK(INT_DOUBLE_FAULT) | \ 301 INT_MASK(INT_DOUBLE_FAULT) | \
302 INT_MASK(INT_AUX_PERF_COUNT) | \ 302 INT_MASK(INT_AUX_PERF_COUNT) | \
303 0) 303 0)
304#endif // !__ARCH_INTERRUPTS_H__ 304#endif /* !__ARCH_INTERRUPTS_H__ */
diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h
index e4f8b4f04895..40a5a3a876d9 100644
--- a/arch/tile/include/asm/atomic_32.h
+++ b/arch/tile/include/asm/atomic_32.h
@@ -348,6 +348,23 @@ void __init_atomic_per_cpu(void);
348/* Support releasing the atomic lock in do_page_fault_ics(). */ 348/* Support releasing the atomic lock in do_page_fault_ics(). */
349void __atomic_fault_unlock(int *lock_ptr); 349void __atomic_fault_unlock(int *lock_ptr);
350#endif 350#endif
351
352/* Private helper routines in lib/atomic_asm_32.S */
353extern struct __get_user __atomic_cmpxchg(volatile int *p,
354 int *lock, int o, int n);
355extern struct __get_user __atomic_xchg(volatile int *p, int *lock, int n);
356extern struct __get_user __atomic_xchg_add(volatile int *p, int *lock, int n);
357extern struct __get_user __atomic_xchg_add_unless(volatile int *p,
358 int *lock, int o, int n);
359extern struct __get_user __atomic_or(volatile int *p, int *lock, int n);
360extern struct __get_user __atomic_andn(volatile int *p, int *lock, int n);
361extern struct __get_user __atomic_xor(volatile int *p, int *lock, int n);
362extern u64 __atomic64_cmpxchg(volatile u64 *p, int *lock, u64 o, u64 n);
363extern u64 __atomic64_xchg(volatile u64 *p, int *lock, u64 n);
364extern u64 __atomic64_xchg_add(volatile u64 *p, int *lock, u64 n);
365extern u64 __atomic64_xchg_add_unless(volatile u64 *p,
366 int *lock, u64 o, u64 n);
367
351#endif /* !__ASSEMBLY__ */ 368#endif /* !__ASSEMBLY__ */
352 369
353#endif /* _ASM_TILE_ATOMIC_32_H */ 370#endif /* _ASM_TILE_ATOMIC_32_H */
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index b09292bcc19f..5a34da6cdd79 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -70,48 +70,7 @@ struct compat_timeval {
70 s32 tv_usec; 70 s32 tv_usec;
71}; 71};
72 72
73struct compat_stat { 73#define compat_stat stat
74 unsigned int st_dev;
75 unsigned int st_ino;
76 unsigned int st_mode;
77 unsigned int st_nlink;
78 unsigned int st_uid;
79 unsigned int st_gid;
80 unsigned int st_rdev;
81 unsigned int __pad1;
82 int st_size;
83 int st_blksize;
84 int __pad2;
85 int st_blocks;
86 int st_atime;
87 unsigned int st_atime_nsec;
88 int st_mtime;
89 unsigned int st_mtime_nsec;
90 int st_ctime;
91 unsigned int st_ctime_nsec;
92 unsigned int __unused[2];
93};
94
95struct compat_stat64 {
96 unsigned long st_dev;
97 unsigned long st_ino;
98 unsigned int st_mode;
99 unsigned int st_nlink;
100 unsigned int st_uid;
101 unsigned int st_gid;
102 unsigned long st_rdev;
103 long st_size;
104 unsigned int st_blksize;
105 unsigned long st_blocks __attribute__((packed));
106 unsigned int st_atime;
107 unsigned int st_atime_nsec;
108 unsigned int st_mtime;
109 unsigned int st_mtime_nsec;
110 unsigned int st_ctime;
111 unsigned int st_ctime_nsec;
112 unsigned int __unused8;
113};
114
115#define compat_statfs statfs 74#define compat_statfs statfs
116 75
117struct compat_sysctl { 76struct compat_sysctl {
@@ -233,7 +192,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
233/* Sign-extend when storing a kernel pointer to a user's ptregs. */ 192/* Sign-extend when storing a kernel pointer to a user's ptregs. */
234static inline unsigned long ptr_to_compat_reg(void __user *uptr) 193static inline unsigned long ptr_to_compat_reg(void __user *uptr)
235{ 194{
236 return (long)(int)(long)uptr; 195 return (long)(int)(long __force)uptr;
237} 196}
238 197
239static inline void __user *compat_alloc_user_space(long len) 198static inline void __user *compat_alloc_user_space(long len)
@@ -278,17 +237,8 @@ long compat_sys_sync_file_range2(int fd, unsigned int flags,
278long compat_sys_fallocate(int fd, int mode, 237long compat_sys_fallocate(int fd, int mode,
279 u32 offset_lo, u32 offset_hi, 238 u32 offset_lo, u32 offset_hi,
280 u32 len_lo, u32 len_hi); 239 u32 len_lo, u32 len_hi);
281long compat_sys_stat64(char __user *filename,
282 struct compat_stat64 __user *statbuf);
283long compat_sys_lstat64(char __user *filename,
284 struct compat_stat64 __user *statbuf);
285long compat_sys_fstat64(unsigned int fd, struct compat_stat64 __user *statbuf);
286long compat_sys_fstatat64(int dfd, char __user *filename,
287 struct compat_stat64 __user *statbuf, int flag);
288long compat_sys_sched_rr_get_interval(compat_pid_t pid, 240long compat_sys_sched_rr_get_interval(compat_pid_t pid,
289 struct compat_timespec __user *interval); 241 struct compat_timespec __user *interval);
290ssize_t compat_sys_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
291 size_t count);
292 242
293/* Versions of compat functions that differ from generic Linux. */ 243/* Versions of compat functions that differ from generic Linux. */
294struct compat_msgbuf; 244struct compat_msgbuf;
@@ -302,7 +252,6 @@ long tile_compat_sys_ptrace(compat_long_t request, compat_long_t pid,
302 compat_long_t addr, compat_long_t data); 252 compat_long_t addr, compat_long_t data);
303 253
304/* Tilera Linux syscalls that don't have "compat" versions. */ 254/* Tilera Linux syscalls that don't have "compat" versions. */
305#define compat_sys_raise_fpe sys_raise_fpe
306#define compat_sys_flush_cache sys_flush_cache 255#define compat_sys_flush_cache sys_flush_cache
307 256
308#endif /* _ASM_TILE_COMPAT_H */ 257#endif /* _ASM_TILE_COMPAT_H */
diff --git a/arch/tile/include/asm/elf.h b/arch/tile/include/asm/elf.h
index 1bca0debdb0f..623a6bb741c1 100644
--- a/arch/tile/include/asm/elf.h
+++ b/arch/tile/include/asm/elf.h
@@ -59,8 +59,7 @@ enum { ELF_ARCH = CHIP_ELF_TYPE() };
59 */ 59 */
60#define elf_check_arch(x) \ 60#define elf_check_arch(x) \
61 ((x)->e_ident[EI_CLASS] == ELF_CLASS && \ 61 ((x)->e_ident[EI_CLASS] == ELF_CLASS && \
62 ((x)->e_machine == CHIP_ELF_TYPE() || \ 62 (x)->e_machine == CHIP_ELF_TYPE())
63 (x)->e_machine == CHIP_COMPAT_ELF_TYPE()))
64 63
65/* The module loader only handles a few relocation types. */ 64/* The module loader only handles a few relocation types. */
66#ifndef __tilegx__ 65#ifndef __tilegx__
@@ -139,8 +138,7 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
139 */ 138 */
140#define compat_elf_check_arch(x) \ 139#define compat_elf_check_arch(x) \
141 ((x)->e_ident[EI_CLASS] == ELFCLASS32 && \ 140 ((x)->e_ident[EI_CLASS] == ELFCLASS32 && \
142 ((x)->e_machine == CHIP_ELF_TYPE() || \ 141 (x)->e_machine == CHIP_ELF_TYPE())
143 (x)->e_machine == CHIP_COMPAT_ELF_TYPE()))
144 142
145#define compat_start_thread(regs, ip, usp) do { \ 143#define compat_start_thread(regs, ip, usp) do { \
146 regs->pc = ptr_to_compat_reg((void *)(ip)); \ 144 regs->pc = ptr_to_compat_reg((void *)(ip)); \
diff --git a/arch/tile/include/asm/futex.h b/arch/tile/include/asm/futex.h
index 9eaeb3c08786..fe0d10dcae57 100644
--- a/arch/tile/include/asm/futex.h
+++ b/arch/tile/include/asm/futex.h
@@ -29,14 +29,14 @@
29#include <linux/uaccess.h> 29#include <linux/uaccess.h>
30#include <linux/errno.h> 30#include <linux/errno.h>
31 31
32extern struct __get_user futex_set(int *v, int i); 32extern struct __get_user futex_set(int __user *v, int i);
33extern struct __get_user futex_add(int *v, int n); 33extern struct __get_user futex_add(int __user *v, int n);
34extern struct __get_user futex_or(int *v, int n); 34extern struct __get_user futex_or(int __user *v, int n);
35extern struct __get_user futex_andn(int *v, int n); 35extern struct __get_user futex_andn(int __user *v, int n);
36extern struct __get_user futex_cmpxchg(int *v, int o, int n); 36extern struct __get_user futex_cmpxchg(int __user *v, int o, int n);
37 37
38#ifndef __tilegx__ 38#ifndef __tilegx__
39extern struct __get_user futex_xor(int *v, int n); 39extern struct __get_user futex_xor(int __user *v, int n);
40#else 40#else
41static inline struct __get_user futex_xor(int __user *uaddr, int n) 41static inline struct __get_user futex_xor(int __user *uaddr, int n)
42{ 42{
@@ -131,6 +131,11 @@ static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval,
131 return asm_ret.err ? asm_ret.err : asm_ret.val; 131 return asm_ret.err ? asm_ret.err : asm_ret.val;
132} 132}
133 133
134#ifndef __tilegx__
135/* Return failure from the atomic wrappers. */
136struct __get_user __atomic_bad_address(int __user *addr);
137#endif
138
134#endif /* !__ASSEMBLY__ */ 139#endif /* !__ASSEMBLY__ */
135 140
136#endif /* _ASM_TILE_FUTEX_H */ 141#endif /* _ASM_TILE_FUTEX_H */
diff --git a/arch/tile/include/asm/page.h b/arch/tile/include/asm/page.h
index c8301c43d6d9..f894a9016da6 100644
--- a/arch/tile/include/asm/page.h
+++ b/arch/tile/include/asm/page.h
@@ -16,8 +16,6 @@
16#define _ASM_TILE_PAGE_H 16#define _ASM_TILE_PAGE_H
17 17
18#include <linux/const.h> 18#include <linux/const.h>
19#include <hv/hypervisor.h>
20#include <arch/chip.h>
21 19
22/* PAGE_SHIFT and HPAGE_SHIFT determine the page sizes. */ 20/* PAGE_SHIFT and HPAGE_SHIFT determine the page sizes. */
23#define PAGE_SHIFT 16 21#define PAGE_SHIFT 16
@@ -29,6 +27,11 @@
29#define PAGE_MASK (~(PAGE_SIZE - 1)) 27#define PAGE_MASK (~(PAGE_SIZE - 1))
30#define HPAGE_MASK (~(HPAGE_SIZE - 1)) 28#define HPAGE_MASK (~(HPAGE_SIZE - 1))
31 29
30#ifdef __KERNEL__
31
32#include <hv/hypervisor.h>
33#include <arch/chip.h>
34
32/* 35/*
33 * The {,H}PAGE_SHIFT values must match the HV_LOG2_PAGE_SIZE_xxx 36 * The {,H}PAGE_SHIFT values must match the HV_LOG2_PAGE_SIZE_xxx
34 * definitions in <hv/hypervisor.h>. We validate this at build time 37 * definitions in <hv/hypervisor.h>. We validate this at build time
@@ -331,4 +334,6 @@ extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr);
331#include <asm-generic/memory_model.h> 334#include <asm-generic/memory_model.h>
332#include <asm-generic/getorder.h> 335#include <asm-generic/getorder.h>
333 336
337#endif /* __KERNEL__ */
338
334#endif /* _ASM_TILE_PAGE_H */ 339#endif /* _ASM_TILE_PAGE_H */
diff --git a/arch/tile/include/asm/pgtable.h b/arch/tile/include/asm/pgtable.h
index beb1504e9c10..b3367379d537 100644
--- a/arch/tile/include/asm/pgtable.h
+++ b/arch/tile/include/asm/pgtable.h
@@ -229,9 +229,9 @@ static inline void __pte_clear(pte_t *ptep)
229#define pte_donemigrate(x) hv_pte_set_present(hv_pte_clear_migrating(x)) 229#define pte_donemigrate(x) hv_pte_set_present(hv_pte_clear_migrating(x))
230 230
231#define pte_ERROR(e) \ 231#define pte_ERROR(e) \
232 printk("%s:%d: bad pte 0x%016llx.\n", __FILE__, __LINE__, pte_val(e)) 232 pr_err("%s:%d: bad pte 0x%016llx.\n", __FILE__, __LINE__, pte_val(e))
233#define pgd_ERROR(e) \ 233#define pgd_ERROR(e) \
234 printk("%s:%d: bad pgd 0x%016llx.\n", __FILE__, __LINE__, pgd_val(e)) 234 pr_err("%s:%d: bad pgd 0x%016llx.\n", __FILE__, __LINE__, pgd_val(e))
235 235
236/* 236/*
237 * set_pte_order() sets the given PTE and also sanity-checks the 237 * set_pte_order() sets the given PTE and also sanity-checks the
@@ -470,6 +470,11 @@ static inline int pmd_huge_page(pmd_t pmd)
470 470
471#include <asm-generic/pgtable.h> 471#include <asm-generic/pgtable.h>
472 472
473/* Support /proc/NN/pgtable API. */
474struct seq_file;
475int arch_proc_pgtable_show(struct seq_file *m, struct mm_struct *mm,
476 unsigned long vaddr, pte_t *ptep, void **datap);
477
473#endif /* !__ASSEMBLY__ */ 478#endif /* !__ASSEMBLY__ */
474 479
475#endif /* _ASM_TILE_PGTABLE_H */ 480#endif /* _ASM_TILE_PGTABLE_H */
diff --git a/arch/tile/include/asm/pgtable_32.h b/arch/tile/include/asm/pgtable_32.h
index b935fb2ad4f3..53ec34884744 100644
--- a/arch/tile/include/asm/pgtable_32.h
+++ b/arch/tile/include/asm/pgtable_32.h
@@ -89,15 +89,27 @@ static inline int pgd_addr_invalid(unsigned long addr)
89/* 89/*
90 * Provide versions of these routines that can be used safely when 90 * Provide versions of these routines that can be used safely when
91 * the hypervisor may be asynchronously modifying dirty/accessed bits. 91 * the hypervisor may be asynchronously modifying dirty/accessed bits.
92 * ptep_get_and_clear() matches the generic one but we provide it to
93 * be parallel with the 64-bit code.
92 */ 94 */
93#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG 95#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
94#define __HAVE_ARCH_PTEP_SET_WRPROTECT 96#define __HAVE_ARCH_PTEP_SET_WRPROTECT
97#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
95 98
96extern int ptep_test_and_clear_young(struct vm_area_struct *, 99extern int ptep_test_and_clear_young(struct vm_area_struct *,
97 unsigned long addr, pte_t *); 100 unsigned long addr, pte_t *);
98extern void ptep_set_wrprotect(struct mm_struct *, 101extern void ptep_set_wrprotect(struct mm_struct *,
99 unsigned long addr, pte_t *); 102 unsigned long addr, pte_t *);
100 103
104#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
105static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
106 unsigned long addr, pte_t *ptep)
107{
108 pte_t pte = *ptep;
109 pte_clear(_mm, addr, ptep);
110 return pte;
111}
112
101/* Create a pmd from a PTFN. */ 113/* Create a pmd from a PTFN. */
102static inline pmd_t ptfn_pmd(unsigned long ptfn, pgprot_t prot) 114static inline pmd_t ptfn_pmd(unsigned long ptfn, pgprot_t prot)
103{ 115{
diff --git a/arch/tile/include/asm/ptrace.h b/arch/tile/include/asm/ptrace.h
index 4d1d9953016a..acdae814e016 100644
--- a/arch/tile/include/asm/ptrace.h
+++ b/arch/tile/include/asm/ptrace.h
@@ -112,6 +112,9 @@ struct pt_regs {
112/* Fill in a struct pt_regs with the current kernel registers. */ 112/* Fill in a struct pt_regs with the current kernel registers. */
113struct pt_regs *get_pt_regs(struct pt_regs *); 113struct pt_regs *get_pt_regs(struct pt_regs *);
114 114
115/* Trace the current syscall. */
116extern void do_syscall_trace(void);
117
115extern void show_regs(struct pt_regs *); 118extern void show_regs(struct pt_regs *);
116 119
117#define arch_has_single_step() (1) 120#define arch_has_single_step() (1)
@@ -123,7 +126,7 @@ extern void show_regs(struct pt_regs *);
123 */ 126 */
124struct single_step_state { 127struct single_step_state {
125 /* the page to which we will write hacked-up bundles */ 128 /* the page to which we will write hacked-up bundles */
126 void *buffer; 129 void __user *buffer;
127 130
128 union { 131 union {
129 int flags; 132 int flags;
diff --git a/arch/tile/include/asm/sections.h b/arch/tile/include/asm/sections.h
index 6c111491f0ed..d062d463fca9 100644
--- a/arch/tile/include/asm/sections.h
+++ b/arch/tile/include/asm/sections.h
@@ -25,7 +25,14 @@ extern char _sinitdata[], _einitdata[];
25/* Write-once data is writable only till the end of initialization. */ 25/* Write-once data is writable only till the end of initialization. */
26extern char __w1data_begin[], __w1data_end[]; 26extern char __w1data_begin[], __w1data_end[];
27 27
28extern char __feedback_section_start[], __feedback_section_end[]; 28
29/* Not exactly sections, but PC comparison points in the code. */
30extern char __rt_sigreturn[], __rt_sigreturn_end[];
31#ifndef __tilegx__
32extern char sys_cmpxchg[], __sys_cmpxchg_end[];
33extern char __sys_cmpxchg_grab_lock[];
34extern char __start_atomic_asm_code[], __end_atomic_asm_code[];
35#endif
29 36
30/* Handle the discontiguity between _sdata and _stext. */ 37/* Handle the discontiguity between _sdata and _stext. */
31static inline int arch_is_kernel_data(unsigned long addr) 38static inline int arch_is_kernel_data(unsigned long addr)
diff --git a/arch/tile/include/asm/signal.h b/arch/tile/include/asm/signal.h
index d20d326d201b..eb0253f32202 100644
--- a/arch/tile/include/asm/signal.h
+++ b/arch/tile/include/asm/signal.h
@@ -26,6 +26,7 @@
26#if defined(__KERNEL__) && !defined(__ASSEMBLY__) 26#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
27int restore_sigcontext(struct pt_regs *, struct sigcontext __user *, long *); 27int restore_sigcontext(struct pt_regs *, struct sigcontext __user *, long *);
28int setup_sigcontext(struct sigcontext __user *, struct pt_regs *); 28int setup_sigcontext(struct sigcontext __user *, struct pt_regs *);
29void do_signal(struct pt_regs *regs);
29#endif 30#endif
30 31
31#endif /* _ASM_TILE_SIGNAL_H */ 32#endif /* _ASM_TILE_SIGNAL_H */
diff --git a/arch/tile/include/asm/spinlock_32.h b/arch/tile/include/asm/spinlock_32.h
index f3a8473c68da..88efdde8dd2b 100644
--- a/arch/tile/include/asm/spinlock_32.h
+++ b/arch/tile/include/asm/spinlock_32.h
@@ -134,9 +134,8 @@ static inline int arch_read_trylock(arch_rwlock_t *rwlock)
134{ 134{
135 int locked; 135 int locked;
136 u32 val = __insn_tns((int *)&rwlock->lock); 136 u32 val = __insn_tns((int *)&rwlock->lock);
137 if (unlikely(val & 1)) { 137 if (unlikely(val & 1))
138 return arch_read_trylock_slow(rwlock); 138 return arch_read_trylock_slow(rwlock);
139 }
140 locked = (val << _RD_COUNT_WIDTH) == 0; 139 locked = (val << _RD_COUNT_WIDTH) == 0;
141 rwlock->lock = val + (locked << _RD_COUNT_SHIFT); 140 rwlock->lock = val + (locked << _RD_COUNT_SHIFT);
142 return locked; 141 return locked;
diff --git a/arch/tile/include/asm/stack.h b/arch/tile/include/asm/stack.h
index 864913bcfbc9..f908473c322d 100644
--- a/arch/tile/include/asm/stack.h
+++ b/arch/tile/include/asm/stack.h
@@ -48,6 +48,10 @@ extern void KBacktraceIterator_init(struct KBacktraceIterator *kbt,
48/* Initialize iterator based on current stack. */ 48/* Initialize iterator based on current stack. */
49extern void KBacktraceIterator_init_current(struct KBacktraceIterator *kbt); 49extern void KBacktraceIterator_init_current(struct KBacktraceIterator *kbt);
50 50
51/* Helper method for above. */
52extern void _KBacktraceIterator_init_current(struct KBacktraceIterator *kbt,
53 ulong pc, ulong lr, ulong sp, ulong r52);
54
51/* No more frames? */ 55/* No more frames? */
52extern int KBacktraceIterator_end(struct KBacktraceIterator *kbt); 56extern int KBacktraceIterator_end(struct KBacktraceIterator *kbt);
53 57
@@ -64,5 +68,7 @@ extern void tile_show_stack(struct KBacktraceIterator *, int headers);
64/* Dump stack of current process, with registers to seed the backtrace. */ 68/* Dump stack of current process, with registers to seed the backtrace. */
65extern void dump_stack_regs(struct pt_regs *); 69extern void dump_stack_regs(struct pt_regs *);
66 70
71/* Helper method for assembly dump_stack(). */
72extern void _dump_stack(int dummy, ulong pc, ulong lr, ulong sp, ulong r52);
67 73
68#endif /* _ASM_TILE_STACK_H */ 74#endif /* _ASM_TILE_STACK_H */
diff --git a/arch/tile/include/asm/syscalls.h b/arch/tile/include/asm/syscalls.h
index 9f2b8e2f69d5..af165a74537f 100644
--- a/arch/tile/include/asm/syscalls.h
+++ b/arch/tile/include/asm/syscalls.h
@@ -22,7 +22,19 @@
22#include <linux/linkage.h> 22#include <linux/linkage.h>
23#include <linux/signal.h> 23#include <linux/signal.h>
24#include <linux/types.h> 24#include <linux/types.h>
25#include <asm-generic/syscalls.h> 25#include <linux/compat.h>
26
27/* The array of function pointers for syscalls. */
28extern void *sys_call_table[];
29#ifdef CONFIG_COMPAT
30extern void *compat_sys_call_table[];
31#endif
32
33/*
34 * Note that by convention, any syscall which requires the current
35 * register set takes an additional "struct pt_regs *" pointer; the
36 * sys_xxx() function just adds the pointer and tail-calls to _sys_xxx().
37 */
26 38
27/* kernel/sys.c */ 39/* kernel/sys.c */
28ssize_t sys32_readahead(int fd, u32 offset_lo, u32 offset_hi, u32 count); 40ssize_t sys32_readahead(int fd, u32 offset_lo, u32 offset_hi, u32 count);
@@ -31,10 +43,66 @@ long sys32_fadvise64(int fd, u32 offset_lo, u32 offset_hi,
31int sys32_fadvise64_64(int fd, u32 offset_lo, u32 offset_hi, 43int sys32_fadvise64_64(int fd, u32 offset_lo, u32 offset_hi,
32 u32 len_lo, u32 len_hi, int advice); 44 u32 len_lo, u32 len_hi, int advice);
33long sys_flush_cache(void); 45long sys_flush_cache(void);
46long sys_mmap2(unsigned long addr, unsigned long len,
47 unsigned long prot, unsigned long flags,
48 unsigned long fd, unsigned long pgoff);
49#ifdef __tilegx__
50long sys_mmap(unsigned long addr, unsigned long len,
51 unsigned long prot, unsigned long flags,
52 unsigned long fd, off_t pgoff);
53#endif
54
55/* kernel/process.c */
56long sys_clone(unsigned long clone_flags, unsigned long newsp,
57 void __user *parent_tid, void __user *child_tid);
58long _sys_clone(unsigned long clone_flags, unsigned long newsp,
59 void __user *parent_tid, void __user *child_tid,
60 struct pt_regs *regs);
61long sys_fork(void);
62long _sys_fork(struct pt_regs *regs);
63long sys_vfork(void);
64long _sys_vfork(struct pt_regs *regs);
65long sys_execve(char __user *filename, char __user * __user *argv,
66 char __user * __user *envp);
67long _sys_execve(char __user *filename, char __user * __user *argv,
68 char __user * __user *envp, struct pt_regs *regs);
69
70/* kernel/signal.c */
71long sys_sigaltstack(const stack_t __user *, stack_t __user *);
72long _sys_sigaltstack(const stack_t __user *, stack_t __user *,
73 struct pt_regs *);
74long sys_rt_sigreturn(void);
75long _sys_rt_sigreturn(struct pt_regs *regs);
76
77/* platform-independent functions */
78long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
79long sys_rt_sigaction(int sig, const struct sigaction __user *act,
80 struct sigaction __user *oact, size_t sigsetsize);
34 81
35#ifndef __tilegx__ 82#ifndef __tilegx__
36/* mm/fault.c */ 83/* mm/fault.c */
37int sys_cmpxchg_badaddr(unsigned long address, struct pt_regs *); 84int sys_cmpxchg_badaddr(unsigned long address);
85int _sys_cmpxchg_badaddr(unsigned long address, struct pt_regs *);
86#endif
87
88#ifdef CONFIG_COMPAT
89long compat_sys_execve(char __user *path, compat_uptr_t __user *argv,
90 compat_uptr_t __user *envp);
91long _compat_sys_execve(char __user *path, compat_uptr_t __user *argv,
92 compat_uptr_t __user *envp, struct pt_regs *regs);
93long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
94 struct compat_sigaltstack __user *uoss_ptr);
95long _compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
96 struct compat_sigaltstack __user *uoss_ptr,
97 struct pt_regs *regs);
98long compat_sys_rt_sigreturn(void);
99long _compat_sys_rt_sigreturn(struct pt_regs *regs);
100
101/* These four are not defined for 64-bit, but serve as "compat" syscalls. */
102long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg);
103long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
104long sys_truncate64(const char __user *path, loff_t length);
105long sys_ftruncate64(unsigned int fd, loff_t length);
38#endif 106#endif
39 107
40#endif /* _ASM_TILE_SYSCALLS_H */ 108#endif /* _ASM_TILE_SYSCALLS_H */
diff --git a/arch/tile/include/asm/system.h b/arch/tile/include/asm/system.h
index d6ca7f816c87..0935094f370a 100644
--- a/arch/tile/include/asm/system.h
+++ b/arch/tile/include/asm/system.h
@@ -160,6 +160,14 @@ struct task_struct;
160extern struct task_struct *_switch_to(struct task_struct *prev, 160extern struct task_struct *_switch_to(struct task_struct *prev,
161 struct task_struct *next); 161 struct task_struct *next);
162 162
163/* Helper function for _switch_to(). */
164extern struct task_struct *__switch_to(struct task_struct *prev,
165 struct task_struct *next,
166 unsigned long new_system_save_1_0);
167
168/* Address that switched-away from tasks are at. */
169extern unsigned long get_switch_to_pc(void);
170
163/* 171/*
164 * On SMP systems, when the scheduler does migration-cost autodetection, 172 * On SMP systems, when the scheduler does migration-cost autodetection,
165 * it needs a way to flush as much of the CPU's caches as possible: 173 * it needs a way to flush as much of the CPU's caches as possible:
@@ -187,10 +195,26 @@ extern int unaligned_printk;
187/* Number of unaligned fixups performed */ 195/* Number of unaligned fixups performed */
188extern unsigned int unaligned_fixup_count; 196extern unsigned int unaligned_fixup_count;
189 197
198/* Init-time routine to do tile-specific per-cpu setup. */
199void setup_cpu(int boot);
200
190/* User-level DMA management functions */ 201/* User-level DMA management functions */
191void grant_dma_mpls(void); 202void grant_dma_mpls(void);
192void restrict_dma_mpls(void); 203void restrict_dma_mpls(void);
193 204
205#ifdef CONFIG_HARDWALL
206/* User-level network management functions */
207void reset_network_state(void);
208void grant_network_mpls(void);
209void restrict_network_mpls(void);
210int hardwall_deactivate(struct task_struct *task);
211
212/* Hook hardwall code into changes in affinity. */
213#define arch_set_cpus_allowed(p, new_mask) do { \
214 if (p->thread.hardwall && !cpumask_equal(&p->cpus_allowed, new_mask)) \
215 hardwall_deactivate(p); \
216} while (0)
217#endif
194 218
195/* Invoke the simulator "syscall" mechanism (see arch/tile/kernel/entry.S). */ 219/* Invoke the simulator "syscall" mechanism (see arch/tile/kernel/entry.S). */
196extern int _sim_syscall(int syscall_num, ...); 220extern int _sim_syscall(int syscall_num, ...);
@@ -215,6 +239,12 @@ extern int _sim_syscall(int syscall_num, ...);
215 homecache_migrate_kthread(); \ 239 homecache_migrate_kthread(); \
216} while (0) 240} while (0)
217 241
242/* Support function for forking a new task. */
243void ret_from_fork(void);
244
245/* Called from ret_from_fork() when a new process starts up. */
246struct task_struct *sim_notify_fork(struct task_struct *prev);
247
218#endif /* !__ASSEMBLY__ */ 248#endif /* !__ASSEMBLY__ */
219 249
220#endif /* _ASM_TILE_SYSTEM_H */ 250#endif /* _ASM_TILE_SYSTEM_H */
diff --git a/arch/tile/include/asm/thread_info.h b/arch/tile/include/asm/thread_info.h
index 9024bf3530aa..beec8729564a 100644
--- a/arch/tile/include/asm/thread_info.h
+++ b/arch/tile/include/asm/thread_info.h
@@ -55,7 +55,7 @@ struct thread_info {
55 .restart_block = { \ 55 .restart_block = { \
56 .fn = do_no_restart_syscall, \ 56 .fn = do_no_restart_syscall, \
57 }, \ 57 }, \
58 .step_state = 0, \ 58 .step_state = NULL, \
59} 59}
60 60
61#define init_thread_info (init_thread_union.thread_info) 61#define init_thread_info (init_thread_union.thread_info)
@@ -86,6 +86,12 @@ register unsigned long stack_pointer __asm__("sp");
86extern struct thread_info *alloc_thread_info(struct task_struct *task); 86extern struct thread_info *alloc_thread_info(struct task_struct *task);
87extern void free_thread_info(struct thread_info *info); 87extern void free_thread_info(struct thread_info *info);
88 88
89/* Sit on a nap instruction until interrupted. */
90extern void smp_nap(void);
91
92/* Enable interrupts racelessly and nap forever: helper for cpu_idle(). */
93extern void _cpu_idle(void);
94
89/* Switch boot idle thread to a freshly-allocated stack and free old stack. */ 95/* Switch boot idle thread to a freshly-allocated stack and free old stack. */
90extern void cpu_idle_on_new_stack(struct thread_info *old_ti, 96extern void cpu_idle_on_new_stack(struct thread_info *old_ti,
91 unsigned long new_sp, 97 unsigned long new_sp,
diff --git a/arch/tile/include/asm/traps.h b/arch/tile/include/asm/traps.h
index eab33d4a917d..432a9c15c8a2 100644
--- a/arch/tile/include/asm/traps.h
+++ b/arch/tile/include/asm/traps.h
@@ -18,9 +18,28 @@
18/* mm/fault.c */ 18/* mm/fault.c */
19void do_page_fault(struct pt_regs *, int fault_num, 19void do_page_fault(struct pt_regs *, int fault_num,
20 unsigned long address, unsigned long write); 20 unsigned long address, unsigned long write);
21void do_async_page_fault(struct pt_regs *);
22
23#ifndef __tilegx__
24/*
25 * We return this structure in registers to avoid having to write
26 * additional save/restore code in the intvec.S caller.
27 */
28struct intvec_state {
29 void *handler;
30 unsigned long vecnum;
31 unsigned long fault_num;
32 unsigned long info;
33 unsigned long retval;
34};
35struct intvec_state do_page_fault_ics(struct pt_regs *regs, int fault_num,
36 unsigned long address,
37 unsigned long info);
38#endif
21 39
22/* kernel/traps.c */ 40/* kernel/traps.c */
23void do_trap(struct pt_regs *, int fault_num, unsigned long reason); 41void do_trap(struct pt_regs *, int fault_num, unsigned long reason);
42void kernel_double_fault(int dummy, ulong pc, ulong lr, ulong sp, ulong r52);
24 43
25/* kernel/time.c */ 44/* kernel/time.c */
26void do_timer_interrupt(struct pt_regs *, int fault_num); 45void do_timer_interrupt(struct pt_regs *, int fault_num);
@@ -31,6 +50,13 @@ void hv_message_intr(struct pt_regs *, int intnum);
31/* kernel/irq.c */ 50/* kernel/irq.c */
32void tile_dev_intr(struct pt_regs *, int intnum); 51void tile_dev_intr(struct pt_regs *, int intnum);
33 52
53#ifdef CONFIG_HARDWALL
54/* kernel/hardwall.c */
55void do_hardwall_trap(struct pt_regs *, int fault_num);
56#endif
57
58/* kernel/ptrace.c */
59void do_breakpoint(struct pt_regs *, int fault_num);
34 60
35 61
36#endif /* _ASM_TILE_SYSCALLS_H */ 62#endif /* _ASM_TILE_SYSCALLS_H */
diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
index f3058afd5a88..ed17a80ec0ed 100644
--- a/arch/tile/include/asm/uaccess.h
+++ b/arch/tile/include/asm/uaccess.h
@@ -89,8 +89,10 @@ int __range_ok(unsigned long addr, unsigned long size);
89 * checks that the pointer is in the user space range - after calling 89 * checks that the pointer is in the user space range - after calling
90 * this function, memory access functions may still return -EFAULT. 90 * this function, memory access functions may still return -EFAULT.
91 */ 91 */
92#define access_ok(type, addr, size) \ 92#define access_ok(type, addr, size) ({ \
93 (likely(__range_ok((unsigned long)addr, size) == 0)) 93 __chk_user_ptr(addr); \
94 likely(__range_ok((unsigned long)(addr), (size)) == 0); \
95})
94 96
95/* 97/*
96 * The exception table consists of pairs of addresses: the first is the 98 * The exception table consists of pairs of addresses: the first is the
@@ -134,14 +136,14 @@ struct __get_user {
134 * such extended assembler routines, though we will have to use a 136 * such extended assembler routines, though we will have to use a
135 * different return code in that case (1, 2, or 4, rather than -EFAULT). 137 * different return code in that case (1, 2, or 4, rather than -EFAULT).
136 */ 138 */
137extern struct __get_user __get_user_1(const void *); 139extern struct __get_user __get_user_1(const void __user *);
138extern struct __get_user __get_user_2(const void *); 140extern struct __get_user __get_user_2(const void __user *);
139extern struct __get_user __get_user_4(const void *); 141extern struct __get_user __get_user_4(const void __user *);
140extern struct __get_user __get_user_8(const void *); 142extern struct __get_user __get_user_8(const void __user *);
141extern int __put_user_1(long, void *); 143extern int __put_user_1(long, void __user *);
142extern int __put_user_2(long, void *); 144extern int __put_user_2(long, void __user *);
143extern int __put_user_4(long, void *); 145extern int __put_user_4(long, void __user *);
144extern int __put_user_8(long long, void *); 146extern int __put_user_8(long long, void __user *);
145 147
146/* Unimplemented routines to cause linker failures */ 148/* Unimplemented routines to cause linker failures */
147extern struct __get_user __get_user_bad(void); 149extern struct __get_user __get_user_bad(void);
diff --git a/arch/tile/include/asm/unistd.h b/arch/tile/include/asm/unistd.h
index 03b3d5d665dd..f2e3ff485333 100644
--- a/arch/tile/include/asm/unistd.h
+++ b/arch/tile/include/asm/unistd.h
@@ -15,7 +15,6 @@
15#if !defined(_ASM_TILE_UNISTD_H) || defined(__SYSCALL) 15#if !defined(_ASM_TILE_UNISTD_H) || defined(__SYSCALL)
16#define _ASM_TILE_UNISTD_H 16#define _ASM_TILE_UNISTD_H
17 17
18
19#ifndef __LP64__ 18#ifndef __LP64__
20/* Use the flavor of this syscall that matches the 32-bit API better. */ 19/* Use the flavor of this syscall that matches the 32-bit API better. */
21#define __ARCH_WANT_SYNC_FILE_RANGE2 20#define __ARCH_WANT_SYNC_FILE_RANGE2
@@ -24,6 +23,10 @@
24/* Use the standard ABI for syscalls. */ 23/* Use the standard ABI for syscalls. */
25#include <asm-generic/unistd.h> 24#include <asm-generic/unistd.h>
26 25
26/* Additional Tilera-specific syscalls. */
27#define __NR_flush_cache (__NR_arch_specific_syscall + 1)
28__SYSCALL(__NR_flush_cache, sys_flush_cache)
29
27#ifndef __tilegx__ 30#ifndef __tilegx__
28/* "Fast" syscalls provide atomic support for 32-bit chips. */ 31/* "Fast" syscalls provide atomic support for 32-bit chips. */
29#define __NR_FAST_cmpxchg -1 32#define __NR_FAST_cmpxchg -1
@@ -33,10 +36,6 @@
33__SYSCALL(__NR_cmpxchg_badaddr, sys_cmpxchg_badaddr) 36__SYSCALL(__NR_cmpxchg_badaddr, sys_cmpxchg_badaddr)
34#endif 37#endif
35 38
36/* Additional Tilera-specific syscalls. */
37#define __NR_flush_cache (__NR_arch_specific_syscall + 1)
38__SYSCALL(__NR_flush_cache, sys_flush_cache)
39
40#ifdef __KERNEL__ 39#ifdef __KERNEL__
41/* In compat mode, we use sys_llseek() for compat_sys_llseek(). */ 40/* In compat mode, we use sys_llseek() for compat_sys_llseek(). */
42#ifdef CONFIG_COMPAT 41#ifdef CONFIG_COMPAT
diff --git a/arch/tile/kernel/backtrace.c b/arch/tile/kernel/backtrace.c
index 1b0a410ef5e7..77265f3b58d6 100644
--- a/arch/tile/kernel/backtrace.c
+++ b/arch/tile/kernel/backtrace.c
@@ -30,18 +30,18 @@
30 30
31 31
32/** A decoded bundle used for backtracer analysis. */ 32/** A decoded bundle used for backtracer analysis. */
33typedef struct { 33struct BacktraceBundle {
34 tile_bundle_bits bits; 34 tile_bundle_bits bits;
35 int num_insns; 35 int num_insns;
36 struct tile_decoded_instruction 36 struct tile_decoded_instruction
37 insns[TILE_MAX_INSTRUCTIONS_PER_BUNDLE]; 37 insns[TILE_MAX_INSTRUCTIONS_PER_BUNDLE];
38} BacktraceBundle; 38};
39 39
40 40
41/* This implementation only makes sense for native tools. */ 41/* This implementation only makes sense for native tools. */
42/** Default function to read memory. */ 42/** Default function to read memory. */
43static bool 43static bool bt_read_memory(void *result, VirtualAddress addr,
44bt_read_memory(void *result, VirtualAddress addr, size_t size, void *extra) 44 size_t size, void *extra)
45{ 45{
46 /* FIXME: this should do some horrible signal stuff to catch 46 /* FIXME: this should do some horrible signal stuff to catch
47 * SEGV cleanly and fail. 47 * SEGV cleanly and fail.
@@ -58,11 +58,11 @@ bt_read_memory(void *result, VirtualAddress addr, size_t size, void *extra)
58 * has the specified mnemonic, and whose first 'num_operands_to_match' 58 * has the specified mnemonic, and whose first 'num_operands_to_match'
59 * operands exactly match those in 'operand_values'. 59 * operands exactly match those in 'operand_values'.
60 */ 60 */
61static const struct tile_decoded_instruction* 61static const struct tile_decoded_instruction *find_matching_insn(
62find_matching_insn(const BacktraceBundle *bundle, 62 const struct BacktraceBundle *bundle,
63 tile_mnemonic mnemonic, 63 tile_mnemonic mnemonic,
64 const int *operand_values, 64 const int *operand_values,
65 int num_operands_to_match) 65 int num_operands_to_match)
66{ 66{
67 int i, j; 67 int i, j;
68 bool match; 68 bool match;
@@ -90,8 +90,7 @@ find_matching_insn(const BacktraceBundle *bundle,
90} 90}
91 91
92/** Does this bundle contain an 'iret' instruction? */ 92/** Does this bundle contain an 'iret' instruction? */
93static inline bool 93static inline bool bt_has_iret(const struct BacktraceBundle *bundle)
94bt_has_iret(const BacktraceBundle *bundle)
95{ 94{
96 return find_matching_insn(bundle, TILE_OPC_IRET, NULL, 0) != NULL; 95 return find_matching_insn(bundle, TILE_OPC_IRET, NULL, 0) != NULL;
97} 96}
@@ -99,8 +98,7 @@ bt_has_iret(const BacktraceBundle *bundle)
99/** Does this bundle contain an 'addi sp, sp, OFFSET' or 98/** Does this bundle contain an 'addi sp, sp, OFFSET' or
100 * 'addli sp, sp, OFFSET' instruction, and if so, what is OFFSET? 99 * 'addli sp, sp, OFFSET' instruction, and if so, what is OFFSET?
101 */ 100 */
102static bool 101static bool bt_has_addi_sp(const struct BacktraceBundle *bundle, int *adjust)
103bt_has_addi_sp(const BacktraceBundle *bundle, int *adjust)
104{ 102{
105 static const int vals[2] = { TREG_SP, TREG_SP }; 103 static const int vals[2] = { TREG_SP, TREG_SP };
106 104
@@ -120,8 +118,7 @@ bt_has_addi_sp(const BacktraceBundle *bundle, int *adjust)
120 * as an unsigned value by this code since that's what the caller wants. 118 * as an unsigned value by this code since that's what the caller wants.
121 * Returns the number of info ops found. 119 * Returns the number of info ops found.
122 */ 120 */
123static int 121static int bt_get_info_ops(const struct BacktraceBundle *bundle,
124bt_get_info_ops(const BacktraceBundle *bundle,
125 int operands[MAX_INFO_OPS_PER_BUNDLE]) 122 int operands[MAX_INFO_OPS_PER_BUNDLE])
126{ 123{
127 int num_ops = 0; 124 int num_ops = 0;
@@ -143,8 +140,7 @@ bt_get_info_ops(const BacktraceBundle *bundle,
143/** Does this bundle contain a jrp instruction, and if so, to which 140/** Does this bundle contain a jrp instruction, and if so, to which
144 * register is it jumping? 141 * register is it jumping?
145 */ 142 */
146static bool 143static bool bt_has_jrp(const struct BacktraceBundle *bundle, int *target_reg)
147bt_has_jrp(const BacktraceBundle *bundle, int *target_reg)
148{ 144{
149 const struct tile_decoded_instruction *insn = 145 const struct tile_decoded_instruction *insn =
150 find_matching_insn(bundle, TILE_OPC_JRP, NULL, 0); 146 find_matching_insn(bundle, TILE_OPC_JRP, NULL, 0);
@@ -156,8 +152,7 @@ bt_has_jrp(const BacktraceBundle *bundle, int *target_reg)
156} 152}
157 153
158/** Does this bundle modify the specified register in any way? */ 154/** Does this bundle modify the specified register in any way? */
159static bool 155static bool bt_modifies_reg(const struct BacktraceBundle *bundle, int reg)
160bt_modifies_reg(const BacktraceBundle *bundle, int reg)
161{ 156{
162 int i, j; 157 int i, j;
163 for (i = 0; i < bundle->num_insns; i++) { 158 for (i = 0; i < bundle->num_insns; i++) {
@@ -177,30 +172,26 @@ bt_modifies_reg(const BacktraceBundle *bundle, int reg)
177} 172}
178 173
179/** Does this bundle modify sp? */ 174/** Does this bundle modify sp? */
180static inline bool 175static inline bool bt_modifies_sp(const struct BacktraceBundle *bundle)
181bt_modifies_sp(const BacktraceBundle *bundle)
182{ 176{
183 return bt_modifies_reg(bundle, TREG_SP); 177 return bt_modifies_reg(bundle, TREG_SP);
184} 178}
185 179
186/** Does this bundle modify lr? */ 180/** Does this bundle modify lr? */
187static inline bool 181static inline bool bt_modifies_lr(const struct BacktraceBundle *bundle)
188bt_modifies_lr(const BacktraceBundle *bundle)
189{ 182{
190 return bt_modifies_reg(bundle, TREG_LR); 183 return bt_modifies_reg(bundle, TREG_LR);
191} 184}
192 185
193/** Does this bundle contain the instruction 'move fp, sp'? */ 186/** Does this bundle contain the instruction 'move fp, sp'? */
194static inline bool 187static inline bool bt_has_move_r52_sp(const struct BacktraceBundle *bundle)
195bt_has_move_r52_sp(const BacktraceBundle *bundle)
196{ 188{
197 static const int vals[2] = { 52, TREG_SP }; 189 static const int vals[2] = { 52, TREG_SP };
198 return find_matching_insn(bundle, TILE_OPC_MOVE, vals, 2) != NULL; 190 return find_matching_insn(bundle, TILE_OPC_MOVE, vals, 2) != NULL;
199} 191}
200 192
201/** Does this bundle contain the instruction 'sw sp, lr'? */ 193/** Does this bundle contain the instruction 'sw sp, lr'? */
202static inline bool 194static inline bool bt_has_sw_sp_lr(const struct BacktraceBundle *bundle)
203bt_has_sw_sp_lr(const BacktraceBundle *bundle)
204{ 195{
205 static const int vals[2] = { TREG_SP, TREG_LR }; 196 static const int vals[2] = { TREG_SP, TREG_LR };
206 return find_matching_insn(bundle, TILE_OPC_SW, vals, 2) != NULL; 197 return find_matching_insn(bundle, TILE_OPC_SW, vals, 2) != NULL;
@@ -209,11 +200,10 @@ bt_has_sw_sp_lr(const BacktraceBundle *bundle)
209/** Locates the caller's PC and SP for a program starting at the 200/** Locates the caller's PC and SP for a program starting at the
210 * given address. 201 * given address.
211 */ 202 */
212static void 203static void find_caller_pc_and_caller_sp(CallerLocation *location,
213find_caller_pc_and_caller_sp(CallerLocation *location, 204 const VirtualAddress start_pc,
214 const VirtualAddress start_pc, 205 BacktraceMemoryReader read_memory_func,
215 BacktraceMemoryReader read_memory_func, 206 void *read_memory_func_extra)
216 void *read_memory_func_extra)
217{ 207{
218 /* Have we explicitly decided what the sp is, 208 /* Have we explicitly decided what the sp is,
219 * rather than just the default? 209 * rather than just the default?
@@ -253,7 +243,7 @@ find_caller_pc_and_caller_sp(CallerLocation *location,
253 243
254 for (pc = start_pc;; pc += sizeof(tile_bundle_bits)) { 244 for (pc = start_pc;; pc += sizeof(tile_bundle_bits)) {
255 245
256 BacktraceBundle bundle; 246 struct BacktraceBundle bundle;
257 int num_info_ops, info_operands[MAX_INFO_OPS_PER_BUNDLE]; 247 int num_info_ops, info_operands[MAX_INFO_OPS_PER_BUNDLE];
258 int one_ago, jrp_reg; 248 int one_ago, jrp_reg;
259 bool has_jrp; 249 bool has_jrp;
@@ -475,12 +465,11 @@ find_caller_pc_and_caller_sp(CallerLocation *location,
475 } 465 }
476} 466}
477 467
478void 468void backtrace_init(BacktraceIterator *state,
479backtrace_init(BacktraceIterator *state, 469 BacktraceMemoryReader read_memory_func,
480 BacktraceMemoryReader read_memory_func, 470 void *read_memory_func_extra,
481 void *read_memory_func_extra, 471 VirtualAddress pc, VirtualAddress lr,
482 VirtualAddress pc, VirtualAddress lr, 472 VirtualAddress sp, VirtualAddress r52)
483 VirtualAddress sp, VirtualAddress r52)
484{ 473{
485 CallerLocation location; 474 CallerLocation location;
486 VirtualAddress fp, initial_frame_caller_pc; 475 VirtualAddress fp, initial_frame_caller_pc;
@@ -558,8 +547,7 @@ backtrace_init(BacktraceIterator *state,
558 state->read_memory_func_extra = read_memory_func_extra; 547 state->read_memory_func_extra = read_memory_func_extra;
559} 548}
560 549
561bool 550bool backtrace_next(BacktraceIterator *state)
562backtrace_next(BacktraceIterator *state)
563{ 551{
564 VirtualAddress next_fp, next_pc, next_frame[2]; 552 VirtualAddress next_fp, next_pc, next_frame[2];
565 553
@@ -614,12 +602,11 @@ backtrace_next(BacktraceIterator *state)
614 602
615#else /* TILE_CHIP < 10 */ 603#else /* TILE_CHIP < 10 */
616 604
617void 605void backtrace_init(BacktraceIterator *state,
618backtrace_init(BacktraceIterator *state, 606 BacktraceMemoryReader read_memory_func,
619 BacktraceMemoryReader read_memory_func, 607 void *read_memory_func_extra,
620 void *read_memory_func_extra, 608 VirtualAddress pc, VirtualAddress lr,
621 VirtualAddress pc, VirtualAddress lr, 609 VirtualAddress sp, VirtualAddress r52)
622 VirtualAddress sp, VirtualAddress r52)
623{ 610{
624 state->pc = pc; 611 state->pc = pc;
625 state->sp = sp; 612 state->sp = sp;
diff --git a/arch/tile/kernel/compat.c b/arch/tile/kernel/compat.c
index a374c99deeb6..b1e06d041555 100644
--- a/arch/tile/kernel/compat.c
+++ b/arch/tile/kernel/compat.c
@@ -88,34 +88,14 @@ long compat_sys_sched_rr_get_interval(compat_pid_t pid,
88 mm_segment_t old_fs = get_fs(); 88 mm_segment_t old_fs = get_fs();
89 89
90 set_fs(KERNEL_DS); 90 set_fs(KERNEL_DS);
91 ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t); 91 ret = sys_sched_rr_get_interval(pid,
92 (struct timespec __force __user *)&t);
92 set_fs(old_fs); 93 set_fs(old_fs);
93 if (put_compat_timespec(&t, interval)) 94 if (put_compat_timespec(&t, interval))
94 return -EFAULT; 95 return -EFAULT;
95 return ret; 96 return ret;
96} 97}
97 98
98ssize_t compat_sys_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
99 size_t count)
100{
101 mm_segment_t old_fs = get_fs();
102 int ret;
103 off_t of;
104
105 if (offset && get_user(of, offset))
106 return -EFAULT;
107
108 set_fs(KERNEL_DS);
109 ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL,
110 count);
111 set_fs(old_fs);
112
113 if (offset && put_user(of, offset))
114 return -EFAULT;
115 return ret;
116}
117
118
119/* 99/*
120 * The usual compat_sys_msgsnd() and _msgrcv() seem to be assuming 100 * The usual compat_sys_msgsnd() and _msgrcv() seem to be assuming
121 * some different calling convention than our normal 32-bit tile code. 101 * some different calling convention than our normal 32-bit tile code.
@@ -177,6 +157,10 @@ long tile_compat_sys_msgrcv(int msqid,
177/* Pass full 64-bit values through ptrace. */ 157/* Pass full 64-bit values through ptrace. */
178#define compat_sys_ptrace tile_compat_sys_ptrace 158#define compat_sys_ptrace tile_compat_sys_ptrace
179 159
160/*
161 * Note that we can't include <linux/unistd.h> here since the header
162 * guard will defeat us; <asm/unistd.h> checks for __SYSCALL as well.
163 */
180void *compat_sys_call_table[__NR_syscalls] = { 164void *compat_sys_call_table[__NR_syscalls] = {
181 [0 ... __NR_syscalls-1] = sys_ni_syscall, 165 [0 ... __NR_syscalls-1] = sys_ni_syscall,
182#include <asm/unistd.h> 166#include <asm/unistd.h>
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index 9fa4ba8ed5f4..d5efb215dd5f 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -32,13 +32,14 @@
32#include <asm/processor.h> 32#include <asm/processor.h>
33#include <asm/ucontext.h> 33#include <asm/ucontext.h>
34#include <asm/sigframe.h> 34#include <asm/sigframe.h>
35#include <asm/syscalls.h>
35#include <arch/interrupts.h> 36#include <arch/interrupts.h>
36 37
37struct compat_sigaction { 38struct compat_sigaction {
38 compat_uptr_t sa_handler; 39 compat_uptr_t sa_handler;
39 compat_ulong_t sa_flags; 40 compat_ulong_t sa_flags;
40 compat_uptr_t sa_restorer; 41 compat_uptr_t sa_restorer;
41 sigset_t sa_mask; /* mask last for extensibility */ 42 sigset_t sa_mask __packed;
42}; 43};
43 44
44struct compat_sigaltstack { 45struct compat_sigaltstack {
@@ -170,7 +171,7 @@ long compat_sys_rt_sigqueueinfo(int pid, int sig,
170 if (copy_siginfo_from_user32(&info, uinfo)) 171 if (copy_siginfo_from_user32(&info, uinfo))
171 return -EFAULT; 172 return -EFAULT;
172 set_fs(KERNEL_DS); 173 set_fs(KERNEL_DS);
173 ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info); 174 ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __force __user *)&info);
174 set_fs(old_fs); 175 set_fs(old_fs);
175 return ret; 176 return ret;
176} 177}
@@ -274,7 +275,8 @@ long _compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
274 } 275 }
275 seg = get_fs(); 276 seg = get_fs();
276 set_fs(KERNEL_DS); 277 set_fs(KERNEL_DS);
277 ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, 278 ret = do_sigaltstack(uss_ptr ? (stack_t __user __force *)&uss : NULL,
279 (stack_t __user __force *)&uoss,
278 (unsigned long)compat_ptr(regs->sp)); 280 (unsigned long)compat_ptr(regs->sp));
279 set_fs(seg); 281 set_fs(seg);
280 if (ret >= 0 && uoss_ptr) { 282 if (ret >= 0 && uoss_ptr) {
@@ -336,7 +338,7 @@ static inline void __user *compat_get_sigframe(struct k_sigaction *ka,
336 * will die with SIGSEGV. 338 * will die with SIGSEGV.
337 */ 339 */
338 if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size))) 340 if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size)))
339 return (void __user *) -1L; 341 return (void __user __force *)-1UL;
340 342
341 /* This is the X/Open sanctioned signal stack switching. */ 343 /* This is the X/Open sanctioned signal stack switching. */
342 if (ka->sa.sa_flags & SA_ONSTACK) { 344 if (ka->sa.sa_flags & SA_ONSTACK) {
diff --git a/arch/tile/kernel/early_printk.c b/arch/tile/kernel/early_printk.c
index e44d441e3f3f..2c54fd43a8a0 100644
--- a/arch/tile/kernel/early_printk.c
+++ b/arch/tile/kernel/early_printk.c
@@ -32,7 +32,7 @@ static struct console early_hv_console = {
32}; 32};
33 33
34/* Direct interface for emergencies */ 34/* Direct interface for emergencies */
35struct console *early_console = &early_hv_console; 35static struct console *early_console = &early_hv_console;
36static int early_console_initialized; 36static int early_console_initialized;
37static int early_console_complete; 37static int early_console_complete;
38 38
diff --git a/arch/tile/kernel/entry.S b/arch/tile/kernel/entry.S
index 136261f7d7f9..3d01383b1b0e 100644
--- a/arch/tile/kernel/entry.S
+++ b/arch/tile/kernel/entry.S
@@ -13,9 +13,9 @@
13 */ 13 */
14 14
15#include <linux/linkage.h> 15#include <linux/linkage.h>
16#include <arch/abi.h> 16#include <linux/unistd.h>
17#include <asm/unistd.h>
18#include <asm/irqflags.h> 17#include <asm/irqflags.h>
18#include <arch/abi.h>
19 19
20#ifdef __tilegx__ 20#ifdef __tilegx__
21#define bnzt bnezt 21#define bnzt bnezt
diff --git a/arch/tile/kernel/machine_kexec.c b/arch/tile/kernel/machine_kexec.c
index ed3e1cb8dcc4..ba7a265d6179 100644
--- a/arch/tile/kernel/machine_kexec.c
+++ b/arch/tile/kernel/machine_kexec.c
@@ -75,13 +75,13 @@ void machine_crash_shutdown(struct pt_regs *regs)
75int machine_kexec_prepare(struct kimage *image) 75int machine_kexec_prepare(struct kimage *image)
76{ 76{
77 if (num_online_cpus() > 1) { 77 if (num_online_cpus() > 1) {
78 printk(KERN_WARNING "%s: detected attempt to kexec " 78 pr_warning("%s: detected attempt to kexec "
79 "with num_online_cpus() > 1\n", 79 "with num_online_cpus() > 1\n",
80 __func__); 80 __func__);
81 return -ENOSYS; 81 return -ENOSYS;
82 } 82 }
83 if (image->type != KEXEC_TYPE_DEFAULT) { 83 if (image->type != KEXEC_TYPE_DEFAULT) {
84 printk(KERN_WARNING "%s: detected attempt to kexec " 84 pr_warning("%s: detected attempt to kexec "
85 "with unsupported type: %d\n", 85 "with unsupported type: %d\n",
86 __func__, 86 __func__,
87 image->type); 87 image->type);
@@ -124,22 +124,13 @@ static unsigned char *kexec_bn2cl(void *pg)
124 return 0; 124 return 0;
125 125
126 /* 126 /*
127 * If we get a checksum mismatch, it's possible that this is 127 * If we get a checksum mismatch, warn with the checksum
128 * just a false positive, but relatively unlikely. We dump 128 * so we can diagnose better.
129 * out the contents of the section so we can diagnose better.
130 */ 129 */
131 csum = ip_compute_csum(pg, bhdrp->b_size); 130 csum = ip_compute_csum(pg, bhdrp->b_size);
132 if (csum != 0) { 131 if (csum != 0) {
133 int i; 132 pr_warning("%s: bad checksum %#x (size %d)\n",
134 unsigned char *p = pg; 133 __func__, csum, bhdrp->b_size);
135 int nbytes = min((Elf32_Word)1000, bhdrp->b_size);
136 printk(KERN_INFO "%s: bad checksum %#x\n", __func__, csum);
137 printk(KERN_INFO "bytes (%d):", bhdrp->b_size);
138 for (i = 0; i < nbytes; ++i)
139 printk(" %02x", p[i]);
140 if (bhdrp->b_size != nbytes)
141 printk(" ...");
142 printk("\n");
143 return 0; 134 return 0;
144 } 135 }
145 136
@@ -156,7 +147,7 @@ static unsigned char *kexec_bn2cl(void *pg)
156 if ((unsigned char *) (nhdrp + 1) > 147 if ((unsigned char *) (nhdrp + 1) >
157 ((unsigned char *) pg) + bhdrp->b_size) { 148 ((unsigned char *) pg) + bhdrp->b_size) {
158 149
159 printk(KERN_INFO "%s: out of bounds\n", __func__); 150 pr_info("%s: out of bounds\n", __func__);
160 return 0; 151 return 0;
161 } 152 }
162 } 153 }
@@ -167,7 +158,7 @@ static unsigned char *kexec_bn2cl(void *pg)
167 while (*desc != '\0') { 158 while (*desc != '\0') {
168 desc++; 159 desc++;
169 if (((unsigned long)desc & PAGE_MASK) != (unsigned long)pg) { 160 if (((unsigned long)desc & PAGE_MASK) != (unsigned long)pg) {
170 printk(KERN_INFO "%s: ran off end of page\n", 161 pr_info("%s: ran off end of page\n",
171 __func__); 162 __func__);
172 return 0; 163 return 0;
173 } 164 }
@@ -202,23 +193,20 @@ static void kexec_find_and_set_command_line(struct kimage *image)
202 } 193 }
203 194
204 if (command_line != 0) { 195 if (command_line != 0) {
205 printk(KERN_INFO "setting new command line to \"%s\"\n", 196 pr_info("setting new command line to \"%s\"\n",
206 command_line); 197 command_line);
207 198
208 hverr = hv_set_command_line( 199 hverr = hv_set_command_line(
209 (HV_VirtAddr) command_line, strlen(command_line)); 200 (HV_VirtAddr) command_line, strlen(command_line));
210 kunmap_atomic(command_line, KM_USER0); 201 kunmap_atomic(command_line, KM_USER0);
211 } else { 202 } else {
212 printk(KERN_INFO "%s: no command line found; making empty\n", 203 pr_info("%s: no command line found; making empty\n",
213 __func__); 204 __func__);
214 hverr = hv_set_command_line((HV_VirtAddr) command_line, 0); 205 hverr = hv_set_command_line((HV_VirtAddr) command_line, 0);
215 } 206 }
216 if (hverr) { 207 if (hverr)
217 printk(KERN_WARNING 208 pr_warning("%s: hv_set_command_line returned error: %d\n",
218 "%s: call to hv_set_command_line returned error: %d\n", 209 __func__, hverr);
219 __func__, hverr);
220
221 }
222} 210}
223 211
224/* 212/*
diff --git a/arch/tile/kernel/messaging.c b/arch/tile/kernel/messaging.c
index f991f5285d8a..6d23ed271d10 100644
--- a/arch/tile/kernel/messaging.c
+++ b/arch/tile/kernel/messaging.c
@@ -18,13 +18,14 @@
18#include <linux/ptrace.h> 18#include <linux/ptrace.h>
19#include <asm/hv_driver.h> 19#include <asm/hv_driver.h>
20#include <asm/irq_regs.h> 20#include <asm/irq_regs.h>
21#include <asm/traps.h>
21#include <hv/hypervisor.h> 22#include <hv/hypervisor.h>
22#include <arch/interrupts.h> 23#include <arch/interrupts.h>
23 24
24/* All messages are stored here */ 25/* All messages are stored here */
25static DEFINE_PER_CPU(HV_MsgState, msg_state); 26static DEFINE_PER_CPU(HV_MsgState, msg_state);
26 27
27void __cpuinit init_messaging() 28void __cpuinit init_messaging(void)
28{ 29{
29 /* Allocate storage for messages in kernel space */ 30 /* Allocate storage for messages in kernel space */
30 HV_MsgState *state = &__get_cpu_var(msg_state); 31 HV_MsgState *state = &__get_cpu_var(msg_state);
@@ -58,7 +59,7 @@ void hv_message_intr(struct pt_regs *regs, int intnum)
58 { 59 {
59 long sp = stack_pointer - (long) current_thread_info(); 60 long sp = stack_pointer - (long) current_thread_info();
60 if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) { 61 if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) {
61 printk(KERN_EMERG "hv_message_intr: " 62 pr_emerg("hv_message_intr: "
62 "stack overflow: %ld\n", 63 "stack overflow: %ld\n",
63 sp - sizeof(struct thread_info)); 64 sp - sizeof(struct thread_info));
64 dump_stack(); 65 dump_stack();
diff --git a/arch/tile/kernel/module.c b/arch/tile/kernel/module.c
index ed3e91161f88..e2ab82b7c7e7 100644
--- a/arch/tile/kernel/module.c
+++ b/arch/tile/kernel/module.c
@@ -107,7 +107,7 @@ int apply_relocate(Elf_Shdr *sechdrs,
107 unsigned int relsec, 107 unsigned int relsec,
108 struct module *me) 108 struct module *me)
109{ 109{
110 printk(KERN_ERR "module %s: .rel relocation unsupported\n", me->name); 110 pr_err("module %s: .rel relocation unsupported\n", me->name);
111 return -ENOEXEC; 111 return -ENOEXEC;
112} 112}
113 113
@@ -119,8 +119,8 @@ int apply_relocate(Elf_Shdr *sechdrs,
119static int validate_hw2_last(long value, struct module *me) 119static int validate_hw2_last(long value, struct module *me)
120{ 120{
121 if (((value << 16) >> 16) != value) { 121 if (((value << 16) >> 16) != value) {
122 printk("module %s: Out of range HW2_LAST value %#lx\n", 122 pr_warning("module %s: Out of range HW2_LAST value %#lx\n",
123 me->name, value); 123 me->name, value);
124 return 0; 124 return 0;
125 } 125 }
126 return 1; 126 return 1;
@@ -223,10 +223,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
223 value -= (unsigned long) location; /* pc-relative */ 223 value -= (unsigned long) location; /* pc-relative */
224 value = (long) value >> 3; /* count by instrs */ 224 value = (long) value >> 3; /* count by instrs */
225 if (!validate_jumpoff(value)) { 225 if (!validate_jumpoff(value)) {
226 printk("module %s: Out of range jump to" 226 pr_warning("module %s: Out of range jump to"
227 " %#llx at %#llx (%p)\n", me->name, 227 " %#llx at %#llx (%p)\n", me->name,
228 sym->st_value + rel[i].r_addend, 228 sym->st_value + rel[i].r_addend,
229 rel[i].r_offset, location); 229 rel[i].r_offset, location);
230 return -ENOEXEC; 230 return -ENOEXEC;
231 } 231 }
232 MUNGE(create_JumpOff_X1); 232 MUNGE(create_JumpOff_X1);
@@ -236,7 +236,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
236#undef MUNGE 236#undef MUNGE
237 237
238 default: 238 default:
239 printk(KERN_ERR "module %s: Unknown relocation: %d\n", 239 pr_err("module %s: Unknown relocation: %d\n",
240 me->name, (int) ELF_R_TYPE(rel[i].r_info)); 240 me->name, (int) ELF_R_TYPE(rel[i].r_info));
241 return -ENOEXEC; 241 return -ENOEXEC;
242 } 242 }
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index c70ff14a48e4..ed590ad0acdc 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -24,9 +24,14 @@
24#include <linux/compat.h> 24#include <linux/compat.h>
25#include <linux/hardirq.h> 25#include <linux/hardirq.h>
26#include <linux/syscalls.h> 26#include <linux/syscalls.h>
27#include <linux/kernel.h>
27#include <asm/system.h> 28#include <asm/system.h>
28#include <asm/stack.h> 29#include <asm/stack.h>
29#include <asm/homecache.h> 30#include <asm/homecache.h>
31#include <asm/syscalls.h>
32#ifdef CONFIG_HARDWALL
33#include <asm/hardwall.h>
34#endif
30#include <arch/chip.h> 35#include <arch/chip.h>
31#include <arch/abi.h> 36#include <arch/abi.h>
32 37
@@ -43,7 +48,7 @@ static int __init idle_setup(char *str)
43 return -EINVAL; 48 return -EINVAL;
44 49
45 if (!strcmp(str, "poll")) { 50 if (!strcmp(str, "poll")) {
46 printk("using polling idle threads.\n"); 51 pr_info("using polling idle threads.\n");
47 no_idle_nap = 1; 52 no_idle_nap = 1;
48 } else if (!strcmp(str, "halt")) 53 } else if (!strcmp(str, "halt"))
49 no_idle_nap = 0; 54 no_idle_nap = 0;
@@ -62,7 +67,6 @@ early_param("idle", idle_setup);
62 */ 67 */
63void cpu_idle(void) 68void cpu_idle(void)
64{ 69{
65 extern void _cpu_idle(void);
66 int cpu = smp_processor_id(); 70 int cpu = smp_processor_id();
67 71
68 72
@@ -108,7 +112,7 @@ void cpu_idle(void)
108struct thread_info *alloc_thread_info(struct task_struct *task) 112struct thread_info *alloc_thread_info(struct task_struct *task)
109{ 113{
110 struct page *page; 114 struct page *page;
111 int flags = GFP_KERNEL; 115 gfp_t flags = GFP_KERNEL;
112 116
113#ifdef CONFIG_DEBUG_STACK_USAGE 117#ifdef CONFIG_DEBUG_STACK_USAGE
114 flags |= __GFP_ZERO; 118 flags |= __GFP_ZERO;
@@ -116,7 +120,7 @@ struct thread_info *alloc_thread_info(struct task_struct *task)
116 120
117 page = alloc_pages(flags, THREAD_SIZE_ORDER); 121 page = alloc_pages(flags, THREAD_SIZE_ORDER);
118 if (!page) 122 if (!page)
119 return 0; 123 return NULL;
120 124
121 return (struct thread_info *)page_address(page); 125 return (struct thread_info *)page_address(page);
122} 126}
@@ -129,6 +133,18 @@ void free_thread_info(struct thread_info *info)
129{ 133{
130 struct single_step_state *step_state = info->step_state; 134 struct single_step_state *step_state = info->step_state;
131 135
136#ifdef CONFIG_HARDWALL
137 /*
138 * We free a thread_info from the context of the task that has
139 * been scheduled next, so the original task is already dead.
140 * Calling deactivate here just frees up the data structures.
141 * If the task we're freeing held the last reference to a
142 * hardwall fd, it would have been released prior to this point
143 * anyway via exit_files(), and "hardwall" would be NULL by now.
144 */
145 if (info->task->thread.hardwall)
146 hardwall_deactivate(info->task);
147#endif
132 148
133 if (step_state) { 149 if (step_state) {
134 150
@@ -154,8 +170,6 @@ void free_thread_info(struct thread_info *info)
154 170
155static void save_arch_state(struct thread_struct *t); 171static void save_arch_state(struct thread_struct *t);
156 172
157extern void ret_from_fork(void);
158
159int copy_thread(unsigned long clone_flags, unsigned long sp, 173int copy_thread(unsigned long clone_flags, unsigned long sp,
160 unsigned long stack_size, 174 unsigned long stack_size,
161 struct task_struct *p, struct pt_regs *regs) 175 struct task_struct *p, struct pt_regs *regs)
@@ -235,6 +249,10 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
235 p->thread.proc_status = 0; 249 p->thread.proc_status = 0;
236#endif 250#endif
237 251
252#ifdef CONFIG_HARDWALL
253 /* New thread does not own any networks. */
254 p->thread.hardwall = NULL;
255#endif
238 256
239 257
240 /* 258 /*
@@ -257,7 +275,7 @@ struct task_struct *validate_current(void)
257 if (unlikely((unsigned long)tsk < PAGE_OFFSET || 275 if (unlikely((unsigned long)tsk < PAGE_OFFSET ||
258 (void *)tsk > high_memory || 276 (void *)tsk > high_memory ||
259 ((unsigned long)tsk & (__alignof__(*tsk) - 1)) != 0)) { 277 ((unsigned long)tsk & (__alignof__(*tsk) - 1)) != 0)) {
260 printk("Corrupt 'current' %p (sp %#lx)\n", tsk, stack_pointer); 278 pr_err("Corrupt 'current' %p (sp %#lx)\n", tsk, stack_pointer);
261 tsk = &corrupt; 279 tsk = &corrupt;
262 } 280 }
263 return tsk; 281 return tsk;
@@ -447,10 +465,6 @@ void _prepare_arch_switch(struct task_struct *next)
447} 465}
448 466
449 467
450extern struct task_struct *__switch_to(struct task_struct *prev,
451 struct task_struct *next,
452 unsigned long new_system_save_1_0);
453
454struct task_struct *__sched _switch_to(struct task_struct *prev, 468struct task_struct *__sched _switch_to(struct task_struct *prev,
455 struct task_struct *next) 469 struct task_struct *next)
456{ 470{
@@ -486,6 +500,15 @@ struct task_struct *__sched _switch_to(struct task_struct *prev,
486 } 500 }
487#endif 501#endif
488 502
503#ifdef CONFIG_HARDWALL
504 /* Enable or disable access to the network registers appropriately. */
505 if (prev->thread.hardwall != NULL) {
506 if (next->thread.hardwall == NULL)
507 restrict_network_mpls();
508 } else if (next->thread.hardwall != NULL) {
509 grant_network_mpls();
510 }
511#endif
489 512
490 /* 513 /*
491 * Switch kernel SP, PC, and callee-saved registers. 514 * Switch kernel SP, PC, and callee-saved registers.
@@ -496,14 +519,14 @@ struct task_struct *__sched _switch_to(struct task_struct *prev,
496 return __switch_to(prev, next, next_current_ksp0(next)); 519 return __switch_to(prev, next, next_current_ksp0(next));
497} 520}
498 521
499int _sys_fork(struct pt_regs *regs) 522long _sys_fork(struct pt_regs *regs)
500{ 523{
501 return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL); 524 return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL);
502} 525}
503 526
504int _sys_clone(unsigned long clone_flags, unsigned long newsp, 527long _sys_clone(unsigned long clone_flags, unsigned long newsp,
505 void __user *parent_tidptr, void __user *child_tidptr, 528 void __user *parent_tidptr, void __user *child_tidptr,
506 struct pt_regs *regs) 529 struct pt_regs *regs)
507{ 530{
508 if (!newsp) 531 if (!newsp)
509 newsp = regs->sp; 532 newsp = regs->sp;
@@ -511,7 +534,7 @@ int _sys_clone(unsigned long clone_flags, unsigned long newsp,
511 parent_tidptr, child_tidptr); 534 parent_tidptr, child_tidptr);
512} 535}
513 536
514int _sys_vfork(struct pt_regs *regs) 537long _sys_vfork(struct pt_regs *regs)
515{ 538{
516 return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->sp, 539 return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->sp,
517 regs, 0, NULL, NULL); 540 regs, 0, NULL, NULL);
@@ -520,10 +543,10 @@ int _sys_vfork(struct pt_regs *regs)
520/* 543/*
521 * sys_execve() executes a new program. 544 * sys_execve() executes a new program.
522 */ 545 */
523int _sys_execve(char __user *path, char __user *__user *argv, 546long _sys_execve(char __user *path, char __user *__user *argv,
524 char __user *__user *envp, struct pt_regs *regs) 547 char __user *__user *envp, struct pt_regs *regs)
525{ 548{
526 int error; 549 long error;
527 char *filename; 550 char *filename;
528 551
529 filename = getname(path); 552 filename = getname(path);
@@ -537,10 +560,10 @@ out:
537} 560}
538 561
539#ifdef CONFIG_COMPAT 562#ifdef CONFIG_COMPAT
540int _compat_sys_execve(char __user *path, compat_uptr_t __user *argv, 563long _compat_sys_execve(char __user *path, compat_uptr_t __user *argv,
541 compat_uptr_t __user *envp, struct pt_regs *regs) 564 compat_uptr_t __user *envp, struct pt_regs *regs)
542{ 565{
543 int error; 566 long error;
544 char *filename; 567 char *filename;
545 568
546 filename = getname(path); 569 filename = getname(path);
@@ -616,31 +639,32 @@ void exit_thread(void)
616 /* Nothing */ 639 /* Nothing */
617} 640}
618 641
619#ifdef __tilegx__
620# define LINECOUNT 3
621# define EXTRA_NL "\n"
622#else
623# define LINECOUNT 4
624# define EXTRA_NL ""
625#endif
626
627void show_regs(struct pt_regs *regs) 642void show_regs(struct pt_regs *regs)
628{ 643{
629 struct task_struct *tsk = validate_current(); 644 struct task_struct *tsk = validate_current();
630 int i, linebreak; 645 int i;
631 printk("\n"); 646
632 printk(" Pid: %d, comm: %20s, CPU: %d\n", 647 pr_err("\n");
648 pr_err(" Pid: %d, comm: %20s, CPU: %d\n",
633 tsk->pid, tsk->comm, smp_processor_id()); 649 tsk->pid, tsk->comm, smp_processor_id());
634 for (i = linebreak = 0; i < 53; ++i) { 650#ifdef __tilegx__
635 printk(" r%-2d: "REGFMT, i, regs->regs[i]); 651 for (i = 0; i < 51; i += 3)
636 if (++linebreak == LINECOUNT) { 652 pr_err(" r%-2d: "REGFMT" r%-2d: "REGFMT" r%-2d: "REGFMT"\n",
637 linebreak = 0; 653 i, regs->regs[i], i+1, regs->regs[i+1],
638 printk("\n"); 654 i+2, regs->regs[i+2]);
639 } 655 pr_err(" r51: "REGFMT" r52: "REGFMT" tp : "REGFMT"\n",
640 } 656 regs->regs[51], regs->regs[52], regs->tp);
641 printk(" tp : "REGFMT EXTRA_NL " sp : "REGFMT" lr : "REGFMT"\n", 657 pr_err(" sp : "REGFMT" lr : "REGFMT"\n", regs->sp, regs->lr);
642 regs->tp, regs->sp, regs->lr); 658#else
643 printk(" pc : "REGFMT" ex1: %ld faultnum: %ld\n", 659 for (i = 0; i < 52; i += 3)
660 pr_err(" r%-2d: "REGFMT" r%-2d: "REGFMT
661 " r%-2d: "REGFMT" r%-2d: "REGFMT"\n",
662 i, regs->regs[i], i+1, regs->regs[i+1],
663 i+2, regs->regs[i+2], i+3, regs->regs[i+3]);
664 pr_err(" r52: "REGFMT" tp : "REGFMT" sp : "REGFMT" lr : "REGFMT"\n",
665 regs->regs[52], regs->tp, regs->sp, regs->lr);
666#endif
667 pr_err(" pc : "REGFMT" ex1: %ld faultnum: %ld\n",
644 regs->pc, regs->ex1, regs->faultnum); 668 regs->pc, regs->ex1, regs->faultnum);
645 669
646 dump_stack_regs(regs); 670 dump_stack_regs(regs);
diff --git a/arch/tile/kernel/ptrace.c b/arch/tile/kernel/ptrace.c
index 468054928e7d..e5701d1a52d7 100644
--- a/arch/tile/kernel/ptrace.c
+++ b/arch/tile/kernel/ptrace.c
@@ -19,6 +19,7 @@
19#include <linux/kprobes.h> 19#include <linux/kprobes.h>
20#include <linux/compat.h> 20#include <linux/compat.h>
21#include <linux/uaccess.h> 21#include <linux/uaccess.h>
22#include <asm/traps.h>
22 23
23void user_enable_single_step(struct task_struct *child) 24void user_enable_single_step(struct task_struct *child)
24{ 25{
@@ -76,7 +77,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
76 if (task_thread_info(child)->status & TS_COMPAT) 77 if (task_thread_info(child)->status & TS_COMPAT)
77 addr = (u32)addr; 78 addr = (u32)addr;
78#endif 79#endif
79 datap = (unsigned long __user *)data; 80 datap = (unsigned long __user __force *)data;
80 81
81 switch (request) { 82 switch (request) {
82 83
diff --git a/arch/tile/kernel/reboot.c b/arch/tile/kernel/reboot.c
index a4523923605e..acd86d20beba 100644
--- a/arch/tile/kernel/reboot.c
+++ b/arch/tile/kernel/reboot.c
@@ -15,6 +15,7 @@
15#include <linux/stddef.h> 15#include <linux/stddef.h>
16#include <linux/reboot.h> 16#include <linux/reboot.h>
17#include <linux/smp.h> 17#include <linux/smp.h>
18#include <linux/pm.h>
18#include <asm/page.h> 19#include <asm/page.h>
19#include <asm/setup.h> 20#include <asm/setup.h>
20#include <hv/hypervisor.h> 21#include <hv/hypervisor.h>
@@ -46,7 +47,5 @@ void machine_restart(char *cmd)
46 hv_restart((HV_VirtAddr) "vmlinux", (HV_VirtAddr) cmd); 47 hv_restart((HV_VirtAddr) "vmlinux", (HV_VirtAddr) cmd);
47} 48}
48 49
49/* 50/* No interesting distinction to be made here. */
50 * Power off function, if any 51void (*pm_power_off)(void) = NULL;
51 */
52void (*pm_power_off)(void) = machine_power_off;
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index 934136b61ceb..4dd21c1e6d5e 100644
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -20,6 +20,7 @@
20#include <linux/node.h> 20#include <linux/node.h>
21#include <linux/cpu.h> 21#include <linux/cpu.h>
22#include <linux/ioport.h> 22#include <linux/ioport.h>
23#include <linux/irq.h>
23#include <linux/kexec.h> 24#include <linux/kexec.h>
24#include <linux/pci.h> 25#include <linux/pci.h>
25#include <linux/initrd.h> 26#include <linux/initrd.h>
@@ -109,7 +110,7 @@ static int __init setup_maxmem(char *str)
109 110
110 maxmem_pfn = (maxmem_mb >> (HPAGE_SHIFT - 20)) << 111 maxmem_pfn = (maxmem_mb >> (HPAGE_SHIFT - 20)) <<
111 (HPAGE_SHIFT - PAGE_SHIFT); 112 (HPAGE_SHIFT - PAGE_SHIFT);
112 printk("Forcing RAM used to no more than %dMB\n", 113 pr_info("Forcing RAM used to no more than %dMB\n",
113 maxmem_pfn >> (20 - PAGE_SHIFT)); 114 maxmem_pfn >> (20 - PAGE_SHIFT));
114 return 0; 115 return 0;
115} 116}
@@ -127,7 +128,7 @@ static int __init setup_maxnodemem(char *str)
127 128
128 maxnodemem_pfn[node] = (maxnodemem_mb >> (HPAGE_SHIFT - 20)) << 129 maxnodemem_pfn[node] = (maxnodemem_mb >> (HPAGE_SHIFT - 20)) <<
129 (HPAGE_SHIFT - PAGE_SHIFT); 130 (HPAGE_SHIFT - PAGE_SHIFT);
130 printk("Forcing RAM used on node %ld to no more than %dMB\n", 131 pr_info("Forcing RAM used on node %ld to no more than %dMB\n",
131 node, maxnodemem_pfn[node] >> (20 - PAGE_SHIFT)); 132 node, maxnodemem_pfn[node] >> (20 - PAGE_SHIFT));
132 return 0; 133 return 0;
133} 134}
@@ -140,7 +141,7 @@ static int __init setup_isolnodes(char *str)
140 return -EINVAL; 141 return -EINVAL;
141 142
142 nodelist_scnprintf(buf, sizeof(buf), isolnodes); 143 nodelist_scnprintf(buf, sizeof(buf), isolnodes);
143 printk("Set isolnodes value to '%s'\n", buf); 144 pr_info("Set isolnodes value to '%s'\n", buf);
144 return 0; 145 return 0;
145} 146}
146early_param("isolnodes", setup_isolnodes); 147early_param("isolnodes", setup_isolnodes);
@@ -155,7 +156,7 @@ static int __init setup_pci_reserve(char* str)
155 return -EINVAL; 156 return -EINVAL;
156 157
157 pci_reserve_mb = mb; 158 pci_reserve_mb = mb;
158 printk("Reserving %dMB for PCIE root complex mappings\n", 159 pr_info("Reserving %dMB for PCIE root complex mappings\n",
159 pci_reserve_mb); 160 pci_reserve_mb);
160 return 0; 161 return 0;
161} 162}
@@ -269,7 +270,7 @@ static void *__init setup_pa_va_mapping(void)
269 * This is up to 4 mappings for lowmem, one mapping per memory 270 * This is up to 4 mappings for lowmem, one mapping per memory
270 * controller, plus one for our text segment. 271 * controller, plus one for our text segment.
271 */ 272 */
272void __cpuinit store_permanent_mappings(void) 273static void __cpuinit store_permanent_mappings(void)
273{ 274{
274 int i; 275 int i;
275 276
@@ -320,14 +321,14 @@ static void __init setup_memory(void)
320 break; 321 break;
321#ifdef CONFIG_FLATMEM 322#ifdef CONFIG_FLATMEM
322 if (i > 0) { 323 if (i > 0) {
323 printk("Can't use discontiguous PAs: %#llx..%#llx\n", 324 pr_err("Can't use discontiguous PAs: %#llx..%#llx\n",
324 range.size, range.start + range.size); 325 range.size, range.start + range.size);
325 continue; 326 continue;
326 } 327 }
327#endif 328#endif
328#ifndef __tilegx__ 329#ifndef __tilegx__
329 if ((unsigned long)range.start) { 330 if ((unsigned long)range.start) {
330 printk("Range not at 4GB multiple: %#llx..%#llx\n", 331 pr_err("Range not at 4GB multiple: %#llx..%#llx\n",
331 range.start, range.start + range.size); 332 range.start, range.start + range.size);
332 continue; 333 continue;
333 } 334 }
@@ -335,51 +336,51 @@ static void __init setup_memory(void)
335 if ((range.start & (HPAGE_SIZE-1)) != 0 || 336 if ((range.start & (HPAGE_SIZE-1)) != 0 ||
336 (range.size & (HPAGE_SIZE-1)) != 0) { 337 (range.size & (HPAGE_SIZE-1)) != 0) {
337 unsigned long long start_pa = range.start; 338 unsigned long long start_pa = range.start;
338 unsigned long long size = range.size; 339 unsigned long long orig_size = range.size;
339 range.start = (start_pa + HPAGE_SIZE - 1) & HPAGE_MASK; 340 range.start = (start_pa + HPAGE_SIZE - 1) & HPAGE_MASK;
340 range.size -= (range.start - start_pa); 341 range.size -= (range.start - start_pa);
341 range.size &= HPAGE_MASK; 342 range.size &= HPAGE_MASK;
342 printk("Range not hugepage-aligned: %#llx..%#llx:" 343 pr_err("Range not hugepage-aligned: %#llx..%#llx:"
343 " now %#llx-%#llx\n", 344 " now %#llx-%#llx\n",
344 start_pa, start_pa + size, 345 start_pa, start_pa + orig_size,
345 range.start, range.start + range.size); 346 range.start, range.start + range.size);
346 } 347 }
347 highbits = __pa_to_highbits(range.start); 348 highbits = __pa_to_highbits(range.start);
348 if (highbits >= NR_PA_HIGHBIT_VALUES) { 349 if (highbits >= NR_PA_HIGHBIT_VALUES) {
349 printk("PA high bits too high: %#llx..%#llx\n", 350 pr_err("PA high bits too high: %#llx..%#llx\n",
350 range.start, range.start + range.size); 351 range.start, range.start + range.size);
351 continue; 352 continue;
352 } 353 }
353 if (highbits_seen[highbits]) { 354 if (highbits_seen[highbits]) {
354 printk("Range overlaps in high bits: %#llx..%#llx\n", 355 pr_err("Range overlaps in high bits: %#llx..%#llx\n",
355 range.start, range.start + range.size); 356 range.start, range.start + range.size);
356 continue; 357 continue;
357 } 358 }
358 highbits_seen[highbits] = 1; 359 highbits_seen[highbits] = 1;
359 if (PFN_DOWN(range.size) > maxnodemem_pfn[i]) { 360 if (PFN_DOWN(range.size) > maxnodemem_pfn[i]) {
360 int size = maxnodemem_pfn[i]; 361 int max_size = maxnodemem_pfn[i];
361 if (size > 0) { 362 if (max_size > 0) {
362 printk("Maxnodemem reduced node %d to" 363 pr_err("Maxnodemem reduced node %d to"
363 " %d pages\n", i, size); 364 " %d pages\n", i, max_size);
364 range.size = (HV_PhysAddr)size << PAGE_SHIFT; 365 range.size = PFN_PHYS(max_size);
365 } else { 366 } else {
366 printk("Maxnodemem disabled node %d\n", i); 367 pr_err("Maxnodemem disabled node %d\n", i);
367 continue; 368 continue;
368 } 369 }
369 } 370 }
370 if (num_physpages + PFN_DOWN(range.size) > maxmem_pfn) { 371 if (num_physpages + PFN_DOWN(range.size) > maxmem_pfn) {
371 int size = maxmem_pfn - num_physpages; 372 int max_size = maxmem_pfn - num_physpages;
372 if (size > 0) { 373 if (max_size > 0) {
373 printk("Maxmem reduced node %d to %d pages\n", 374 pr_err("Maxmem reduced node %d to %d pages\n",
374 i, size); 375 i, max_size);
375 range.size = (HV_PhysAddr)size << PAGE_SHIFT; 376 range.size = PFN_PHYS(max_size);
376 } else { 377 } else {
377 printk("Maxmem disabled node %d\n", i); 378 pr_err("Maxmem disabled node %d\n", i);
378 continue; 379 continue;
379 } 380 }
380 } 381 }
381 if (i >= MAX_NUMNODES) { 382 if (i >= MAX_NUMNODES) {
382 printk("Too many PA nodes (#%d): %#llx...%#llx\n", 383 pr_err("Too many PA nodes (#%d): %#llx...%#llx\n",
383 i, range.size, range.size + range.start); 384 i, range.size, range.size + range.start);
384 continue; 385 continue;
385 } 386 }
@@ -391,7 +392,7 @@ static void __init setup_memory(void)
391#ifndef __tilegx__ 392#ifndef __tilegx__
392 if (((HV_PhysAddr)end << PAGE_SHIFT) != 393 if (((HV_PhysAddr)end << PAGE_SHIFT) !=
393 (range.start + range.size)) { 394 (range.start + range.size)) {
394 printk("PAs too high to represent: %#llx..%#llx\n", 395 pr_err("PAs too high to represent: %#llx..%#llx\n",
395 range.start, range.start + range.size); 396 range.start, range.start + range.size);
396 continue; 397 continue;
397 } 398 }
@@ -412,7 +413,7 @@ static void __init setup_memory(void)
412 NR_CPUS * (PFN_UP(per_cpu_size) >> PAGE_SHIFT); 413 NR_CPUS * (PFN_UP(per_cpu_size) >> PAGE_SHIFT);
413 if (end < pci_reserve_end_pfn + percpu_pages) { 414 if (end < pci_reserve_end_pfn + percpu_pages) {
414 end = pci_reserve_start_pfn; 415 end = pci_reserve_start_pfn;
415 printk("PCI mapping region reduced node %d to" 416 pr_err("PCI mapping region reduced node %d to"
416 " %ld pages\n", i, end - start); 417 " %ld pages\n", i, end - start);
417 } 418 }
418 } 419 }
@@ -456,11 +457,11 @@ static void __init setup_memory(void)
456 } 457 }
457 } 458 }
458 num_physpages -= dropped_pages; 459 num_physpages -= dropped_pages;
459 printk(KERN_WARNING "Only using %ldMB memory;" 460 pr_warning("Only using %ldMB memory;"
460 " ignoring %ldMB.\n", 461 " ignoring %ldMB.\n",
461 num_physpages >> (20 - PAGE_SHIFT), 462 num_physpages >> (20 - PAGE_SHIFT),
462 dropped_pages >> (20 - PAGE_SHIFT)); 463 dropped_pages >> (20 - PAGE_SHIFT));
463 printk(KERN_WARNING "Consider using a larger page size.\n"); 464 pr_warning("Consider using a larger page size.\n");
464 } 465 }
465#endif 466#endif
466 467
@@ -478,9 +479,9 @@ static void __init setup_memory(void)
478 MAXMEM_PFN : mappable_physpages; 479 MAXMEM_PFN : mappable_physpages;
479 highmem_pages = (long) (num_physpages - lowmem_pages); 480 highmem_pages = (long) (num_physpages - lowmem_pages);
480 481
481 printk(KERN_NOTICE "%ldMB HIGHMEM available.\n", 482 pr_notice("%ldMB HIGHMEM available.\n",
482 pages_to_mb(highmem_pages > 0 ? highmem_pages : 0)); 483 pages_to_mb(highmem_pages > 0 ? highmem_pages : 0));
483 printk(KERN_NOTICE "%ldMB LOWMEM available.\n", 484 pr_notice("%ldMB LOWMEM available.\n",
484 pages_to_mb(lowmem_pages)); 485 pages_to_mb(lowmem_pages));
485#else 486#else
486 /* Set max_low_pfn based on what node 0 can directly address. */ 487 /* Set max_low_pfn based on what node 0 can directly address. */
@@ -488,15 +489,15 @@ static void __init setup_memory(void)
488 489
489#ifndef __tilegx__ 490#ifndef __tilegx__
490 if (node_end_pfn[0] > MAXMEM_PFN) { 491 if (node_end_pfn[0] > MAXMEM_PFN) {
491 printk(KERN_WARNING "Only using %ldMB LOWMEM.\n", 492 pr_warning("Only using %ldMB LOWMEM.\n",
492 MAXMEM>>20); 493 MAXMEM>>20);
493 printk(KERN_WARNING "Use a HIGHMEM enabled kernel.\n"); 494 pr_warning("Use a HIGHMEM enabled kernel.\n");
494 max_low_pfn = MAXMEM_PFN; 495 max_low_pfn = MAXMEM_PFN;
495 max_pfn = MAXMEM_PFN; 496 max_pfn = MAXMEM_PFN;
496 num_physpages = MAXMEM_PFN; 497 num_physpages = MAXMEM_PFN;
497 node_end_pfn[0] = MAXMEM_PFN; 498 node_end_pfn[0] = MAXMEM_PFN;
498 } else { 499 } else {
499 printk(KERN_NOTICE "%ldMB memory available.\n", 500 pr_notice("%ldMB memory available.\n",
500 pages_to_mb(node_end_pfn[0])); 501 pages_to_mb(node_end_pfn[0]));
501 } 502 }
502 for (i = 1; i < MAX_NUMNODES; ++i) { 503 for (i = 1; i < MAX_NUMNODES; ++i) {
@@ -512,7 +513,7 @@ static void __init setup_memory(void)
512 if (pages) 513 if (pages)
513 high_memory = pfn_to_kaddr(node_end_pfn[i]); 514 high_memory = pfn_to_kaddr(node_end_pfn[i]);
514 } 515 }
515 printk(KERN_NOTICE "%ldMB memory available.\n", 516 pr_notice("%ldMB memory available.\n",
516 pages_to_mb(lowmem_pages)); 517 pages_to_mb(lowmem_pages));
517#endif 518#endif
518#endif 519#endif
@@ -744,7 +745,7 @@ static void __init setup_numa_mapping(void)
744 nodes_andnot(default_nodes, node_online_map, isolnodes); 745 nodes_andnot(default_nodes, node_online_map, isolnodes);
745 if (nodes_empty(default_nodes)) { 746 if (nodes_empty(default_nodes)) {
746 BUG_ON(!node_isset(0, node_online_map)); 747 BUG_ON(!node_isset(0, node_online_map));
747 printk("Forcing NUMA node zero available as a default node\n"); 748 pr_err("Forcing NUMA node zero available as a default node\n");
748 node_set(0, default_nodes); 749 node_set(0, default_nodes);
749 } 750 }
750 751
@@ -822,13 +823,13 @@ static void __init setup_numa_mapping(void)
822 printk(KERN_DEBUG "NUMA cpu-to-node row %d:", y); 823 printk(KERN_DEBUG "NUMA cpu-to-node row %d:", y);
823 for (x = 0; x < smp_width; ++x, ++cpu) { 824 for (x = 0; x < smp_width; ++x, ++cpu) {
824 if (cpu_to_node(cpu) < 0) { 825 if (cpu_to_node(cpu) < 0) {
825 printk(" -"); 826 pr_cont(" -");
826 cpu_2_node[cpu] = first_node(default_nodes); 827 cpu_2_node[cpu] = first_node(default_nodes);
827 } else { 828 } else {
828 printk(" %d", cpu_to_node(cpu)); 829 pr_cont(" %d", cpu_to_node(cpu));
829 } 830 }
830 } 831 }
831 printk("\n"); 832 pr_cont("\n");
832 } 833 }
833} 834}
834 835
@@ -856,12 +857,17 @@ subsys_initcall(topology_init);
856#endif /* CONFIG_NUMA */ 857#endif /* CONFIG_NUMA */
857 858
858/** 859/**
859 * setup_mpls() - Allow the user-space code to access various SPRs. 860 * setup_cpu() - Do all necessary per-cpu, tile-specific initialization.
861 * @boot: Is this the boot cpu?
860 * 862 *
861 * Also called from online_secondary(). 863 * Called from setup_arch() on the boot cpu, or online_secondary().
862 */ 864 */
863void __cpuinit setup_mpls(void) 865void __cpuinit setup_cpu(int boot)
864{ 866{
867 /* The boot cpu sets up its permanent mappings much earlier. */
868 if (!boot)
869 store_permanent_mappings();
870
865 /* Allow asynchronous TLB interrupts. */ 871 /* Allow asynchronous TLB interrupts. */
866#if CHIP_HAS_TILE_DMA() 872#if CHIP_HAS_TILE_DMA()
867 raw_local_irq_unmask(INT_DMATLB_MISS); 873 raw_local_irq_unmask(INT_DMATLB_MISS);
@@ -892,6 +898,14 @@ void __cpuinit setup_mpls(void)
892 * as well as the PL 0 interrupt mask. 898 * as well as the PL 0 interrupt mask.
893 */ 899 */
894 __insn_mtspr(SPR_MPL_INTCTRL_0_SET_0, 1); 900 __insn_mtspr(SPR_MPL_INTCTRL_0_SET_0, 1);
901
902 /* Initialize IRQ support for this cpu. */
903 setup_irq_regs();
904
905#ifdef CONFIG_HARDWALL
906 /* Reset the network state on this cpu. */
907 reset_network_state();
908#endif
895} 909}
896 910
897static int __initdata set_initramfs_file; 911static int __initdata set_initramfs_file;
@@ -922,22 +936,22 @@ static void __init load_hv_initrd(void)
922 fd = hv_fs_findfile((HV_VirtAddr) initramfs_file); 936 fd = hv_fs_findfile((HV_VirtAddr) initramfs_file);
923 if (fd == HV_ENOENT) { 937 if (fd == HV_ENOENT) {
924 if (set_initramfs_file) 938 if (set_initramfs_file)
925 printk("No such hvfs initramfs file '%s'\n", 939 pr_warning("No such hvfs initramfs file '%s'\n",
926 initramfs_file); 940 initramfs_file);
927 return; 941 return;
928 } 942 }
929 BUG_ON(fd < 0); 943 BUG_ON(fd < 0);
930 stat = hv_fs_fstat(fd); 944 stat = hv_fs_fstat(fd);
931 BUG_ON(stat.size < 0); 945 BUG_ON(stat.size < 0);
932 if (stat.flags & HV_FS_ISDIR) { 946 if (stat.flags & HV_FS_ISDIR) {
933 printk("Ignoring hvfs file '%s': it's a directory.\n", 947 pr_warning("Ignoring hvfs file '%s': it's a directory.\n",
934 initramfs_file); 948 initramfs_file);
935 return; 949 return;
936 } 950 }
937 initrd = alloc_bootmem_pages(stat.size); 951 initrd = alloc_bootmem_pages(stat.size);
938 rc = hv_fs_pread(fd, (HV_VirtAddr) initrd, stat.size, 0); 952 rc = hv_fs_pread(fd, (HV_VirtAddr) initrd, stat.size, 0);
939 if (rc != stat.size) { 953 if (rc != stat.size) {
940 printk("Error reading %d bytes from hvfs file '%s': %d\n", 954 pr_err("Error reading %d bytes from hvfs file '%s': %d\n",
941 stat.size, initramfs_file, rc); 955 stat.size, initramfs_file, rc);
942 free_bootmem((unsigned long) initrd, stat.size); 956 free_bootmem((unsigned long) initrd, stat.size);
943 return; 957 return;
@@ -966,9 +980,9 @@ static void __init validate_hv(void)
966 HV_Topology topology = hv_inquire_topology(); 980 HV_Topology topology = hv_inquire_topology();
967 BUG_ON(topology.coord.x != 0 || topology.coord.y != 0); 981 BUG_ON(topology.coord.x != 0 || topology.coord.y != 0);
968 if (topology.width != 1 || topology.height != 1) { 982 if (topology.width != 1 || topology.height != 1) {
969 printk("Warning: booting UP kernel on %dx%d grid;" 983 pr_warning("Warning: booting UP kernel on %dx%d grid;"
970 " will ignore all but first tile.\n", 984 " will ignore all but first tile.\n",
971 topology.width, topology.height); 985 topology.width, topology.height);
972 } 986 }
973#endif 987#endif
974 988
@@ -1004,7 +1018,7 @@ static void __init validate_hv(void)
1004 1018
1005 if (hv_confstr(HV_CONFSTR_CHIP_MODEL, (HV_VirtAddr)chip_model, 1019 if (hv_confstr(HV_CONFSTR_CHIP_MODEL, (HV_VirtAddr)chip_model,
1006 sizeof(chip_model)) < 0) { 1020 sizeof(chip_model)) < 0) {
1007 printk("Warning: HV_CONFSTR_CHIP_MODEL not available\n"); 1021 pr_err("Warning: HV_CONFSTR_CHIP_MODEL not available\n");
1008 strlcpy(chip_model, "unknown", sizeof(chip_model)); 1022 strlcpy(chip_model, "unknown", sizeof(chip_model));
1009 } 1023 }
1010} 1024}
@@ -1096,7 +1110,7 @@ static int __init disabled_cpus(char *str)
1096 if (str == NULL || cpulist_parse_crop(str, &disabled_map) != 0) 1110 if (str == NULL || cpulist_parse_crop(str, &disabled_map) != 0)
1097 return -EINVAL; 1111 return -EINVAL;
1098 if (cpumask_test_cpu(boot_cpu, &disabled_map)) { 1112 if (cpumask_test_cpu(boot_cpu, &disabled_map)) {
1099 printk("disabled_cpus: can't disable boot cpu %d\n", boot_cpu); 1113 pr_err("disabled_cpus: can't disable boot cpu %d\n", boot_cpu);
1100 cpumask_clear_cpu(boot_cpu, &disabled_map); 1114 cpumask_clear_cpu(boot_cpu, &disabled_map);
1101 } 1115 }
1102 return 0; 1116 return 0;
@@ -1104,12 +1118,12 @@ static int __init disabled_cpus(char *str)
1104 1118
1105early_param("disabled_cpus", disabled_cpus); 1119early_param("disabled_cpus", disabled_cpus);
1106 1120
1107void __init print_disabled_cpus() 1121void __init print_disabled_cpus(void)
1108{ 1122{
1109 if (!cpumask_empty(&disabled_map)) { 1123 if (!cpumask_empty(&disabled_map)) {
1110 char buf[100]; 1124 char buf[100];
1111 cpulist_scnprintf(buf, sizeof(buf), &disabled_map); 1125 cpulist_scnprintf(buf, sizeof(buf), &disabled_map);
1112 printk(KERN_INFO "CPUs not available for Linux: %s\n", buf); 1126 pr_info("CPUs not available for Linux: %s\n", buf);
1113 } 1127 }
1114} 1128}
1115 1129
@@ -1162,7 +1176,7 @@ static void __init setup_cpu_maps(void)
1162 (HV_VirtAddr) cpumask_bits(&cpu_lotar_map), 1176 (HV_VirtAddr) cpumask_bits(&cpu_lotar_map),
1163 sizeof(cpu_lotar_map)); 1177 sizeof(cpu_lotar_map));
1164 if (rc < 0) { 1178 if (rc < 0) {
1165 printk("warning: no HV_INQ_TILES_LOTAR; using AVAIL\n"); 1179 pr_err("warning: no HV_INQ_TILES_LOTAR; using AVAIL\n");
1166 cpu_lotar_map = cpu_possible_map; 1180 cpu_lotar_map = cpu_possible_map;
1167 } 1181 }
1168 1182
@@ -1182,7 +1196,7 @@ static void __init setup_cpu_maps(void)
1182 1196
1183static int __init dataplane(char *str) 1197static int __init dataplane(char *str)
1184{ 1198{
1185 printk("WARNING: dataplane support disabled in this kernel\n"); 1199 pr_warning("WARNING: dataplane support disabled in this kernel\n");
1186 return 0; 1200 return 0;
1187} 1201}
1188 1202
@@ -1200,8 +1214,8 @@ void __init setup_arch(char **cmdline_p)
1200 len = hv_get_command_line((HV_VirtAddr) boot_command_line, 1214 len = hv_get_command_line((HV_VirtAddr) boot_command_line,
1201 COMMAND_LINE_SIZE); 1215 COMMAND_LINE_SIZE);
1202 if (boot_command_line[0]) 1216 if (boot_command_line[0])
1203 printk("WARNING: ignoring dynamic command line \"%s\"\n", 1217 pr_warning("WARNING: ignoring dynamic command line \"%s\"\n",
1204 boot_command_line); 1218 boot_command_line);
1205 strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE); 1219 strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
1206#else 1220#else
1207 char *hv_cmdline; 1221 char *hv_cmdline;
@@ -1269,7 +1283,7 @@ void __init setup_arch(char **cmdline_p)
1269 setup_numa_mapping(); 1283 setup_numa_mapping();
1270 zone_sizes_init(); 1284 zone_sizes_init();
1271 set_page_homes(); 1285 set_page_homes();
1272 setup_mpls(); 1286 setup_cpu(1);
1273 setup_clock(); 1287 setup_clock();
1274 load_hv_initrd(); 1288 load_hv_initrd();
1275} 1289}
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c
index 45835cfad407..45b66a3c991f 100644
--- a/arch/tile/kernel/signal.c
+++ b/arch/tile/kernel/signal.c
@@ -33,6 +33,7 @@
33#include <asm/processor.h> 33#include <asm/processor.h>
34#include <asm/ucontext.h> 34#include <asm/ucontext.h>
35#include <asm/sigframe.h> 35#include <asm/sigframe.h>
36#include <asm/syscalls.h>
36#include <arch/interrupts.h> 37#include <arch/interrupts.h>
37 38
38#define DEBUG_SIG 0 39#define DEBUG_SIG 0
@@ -40,11 +41,8 @@
40#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) 41#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
41 42
42 43
43/* Caller before callee in this file; other callee is in assembler */
44void do_signal(struct pt_regs *regs);
45
46long _sys_sigaltstack(const stack_t __user *uss, 44long _sys_sigaltstack(const stack_t __user *uss,
47 stack_t __user *uoss, struct pt_regs *regs) 45 stack_t __user *uoss, struct pt_regs *regs)
48{ 46{
49 return do_sigaltstack(uss, uoss, regs->sp); 47 return do_sigaltstack(uss, uoss, regs->sp);
50} 48}
@@ -65,7 +63,7 @@ int restore_sigcontext(struct pt_regs *regs,
65 63
66 for (i = 0; i < sizeof(struct pt_regs)/sizeof(long); ++i) 64 for (i = 0; i < sizeof(struct pt_regs)/sizeof(long); ++i)
67 err |= __get_user(((long *)regs)[i], 65 err |= __get_user(((long *)regs)[i],
68 &((long *)(&sc->regs))[i]); 66 &((long __user *)(&sc->regs))[i]);
69 67
70 regs->faultnum = INT_SWINT_1_SIGRETURN; 68 regs->faultnum = INT_SWINT_1_SIGRETURN;
71 69
@@ -73,7 +71,8 @@ int restore_sigcontext(struct pt_regs *regs,
73 return err; 71 return err;
74} 72}
75 73
76int _sys_rt_sigreturn(struct pt_regs *regs) 74/* sigreturn() returns long since it restores r0 in the interrupted code. */
75long _sys_rt_sigreturn(struct pt_regs *regs)
77{ 76{
78 struct rt_sigframe __user *frame = 77 struct rt_sigframe __user *frame =
79 (struct rt_sigframe __user *)(regs->sp); 78 (struct rt_sigframe __user *)(regs->sp);
@@ -114,7 +113,7 @@ int setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)
114 113
115 for (i = 0; i < sizeof(struct pt_regs)/sizeof(long); ++i) 114 for (i = 0; i < sizeof(struct pt_regs)/sizeof(long); ++i)
116 err |= __put_user(((long *)regs)[i], 115 err |= __put_user(((long *)regs)[i],
117 &((long *)(&sc->regs))[i]); 116 &((long __user *)(&sc->regs))[i]);
118 117
119 return err; 118 return err;
120} 119}
@@ -137,7 +136,7 @@ static inline void __user *get_sigframe(struct k_sigaction *ka,
137 * will die with SIGSEGV. 136 * will die with SIGSEGV.
138 */ 137 */
139 if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size))) 138 if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size)))
140 return (void __user *) -1L; 139 return (void __user __force *)-1UL;
141 140
142 /* This is the X/Open sanctioned signal stack switching. */ 141 /* This is the X/Open sanctioned signal stack switching. */
143 if (ka->sa.sa_flags & SA_ONSTACK) { 142 if (ka->sa.sa_flags & SA_ONSTACK) {
@@ -185,8 +184,8 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
185 /* Create the ucontext. */ 184 /* Create the ucontext. */
186 err |= __clear_user(&frame->save_area, sizeof(frame->save_area)); 185 err |= __clear_user(&frame->save_area, sizeof(frame->save_area));
187 err |= __put_user(0, &frame->uc.uc_flags); 186 err |= __put_user(0, &frame->uc.uc_flags);
188 err |= __put_user(0, &frame->uc.uc_link); 187 err |= __put_user(NULL, &frame->uc.uc_link);
189 err |= __put_user((void *)(current->sas_ss_sp), 188 err |= __put_user((void __user *)(current->sas_ss_sp),
190 &frame->uc.uc_stack.ss_sp); 189 &frame->uc.uc_stack.ss_sp);
191 err |= __put_user(sas_ss_flags(regs->sp), 190 err |= __put_user(sas_ss_flags(regs->sp),
192 &frame->uc.uc_stack.ss_flags); 191 &frame->uc.uc_stack.ss_flags);
diff --git a/arch/tile/kernel/single_step.c b/arch/tile/kernel/single_step.c
index 266aae123632..5ec4b9c651f2 100644
--- a/arch/tile/kernel/single_step.c
+++ b/arch/tile/kernel/single_step.c
@@ -23,6 +23,7 @@
23#include <linux/uaccess.h> 23#include <linux/uaccess.h>
24#include <linux/mman.h> 24#include <linux/mman.h>
25#include <linux/types.h> 25#include <linux/types.h>
26#include <linux/err.h>
26#include <asm/cacheflush.h> 27#include <asm/cacheflush.h>
27#include <asm/opcode-tile.h> 28#include <asm/opcode-tile.h>
28#include <asm/opcode_constants.h> 29#include <asm/opcode_constants.h>
@@ -39,8 +40,8 @@ static int __init setup_unaligned_printk(char *str)
39 if (strict_strtol(str, 0, &val) != 0) 40 if (strict_strtol(str, 0, &val) != 0)
40 return 0; 41 return 0;
41 unaligned_printk = val; 42 unaligned_printk = val;
42 printk("Printk for each unaligned data accesses is %s\n", 43 pr_info("Printk for each unaligned data accesses is %s\n",
43 unaligned_printk ? "enabled" : "disabled"); 44 unaligned_printk ? "enabled" : "disabled");
44 return 1; 45 return 1;
45} 46}
46__setup("unaligned_printk=", setup_unaligned_printk); 47__setup("unaligned_printk=", setup_unaligned_printk);
@@ -113,7 +114,7 @@ static tile_bundle_bits rewrite_load_store_unaligned(
113 enum mem_op mem_op, 114 enum mem_op mem_op,
114 int size, int sign_ext) 115 int size, int sign_ext)
115{ 116{
116 unsigned char *addr; 117 unsigned char __user *addr;
117 int val_reg, addr_reg, err, val; 118 int val_reg, addr_reg, err, val;
118 119
119 /* Get address and value registers */ 120 /* Get address and value registers */
@@ -148,7 +149,7 @@ static tile_bundle_bits rewrite_load_store_unaligned(
148 return bundle; 149 return bundle;
149 150
150 /* If it's aligned, don't handle it specially */ 151 /* If it's aligned, don't handle it specially */
151 addr = (void *)regs->regs[addr_reg]; 152 addr = (void __user *)regs->regs[addr_reg];
152 if (((unsigned long)addr % size) == 0) 153 if (((unsigned long)addr % size) == 0)
153 return bundle; 154 return bundle;
154 155
@@ -183,7 +184,7 @@ static tile_bundle_bits rewrite_load_store_unaligned(
183 siginfo_t info = { 184 siginfo_t info = {
184 .si_signo = SIGSEGV, 185 .si_signo = SIGSEGV,
185 .si_code = SEGV_MAPERR, 186 .si_code = SEGV_MAPERR,
186 .si_addr = (void __user *)addr 187 .si_addr = addr
187 }; 188 };
188 force_sig_info(info.si_signo, &info, current); 189 force_sig_info(info.si_signo, &info, current);
189 return (tile_bundle_bits) 0; 190 return (tile_bundle_bits) 0;
@@ -193,30 +194,33 @@ static tile_bundle_bits rewrite_load_store_unaligned(
193 siginfo_t info = { 194 siginfo_t info = {
194 .si_signo = SIGBUS, 195 .si_signo = SIGBUS,
195 .si_code = BUS_ADRALN, 196 .si_code = BUS_ADRALN,
196 .si_addr = (void __user *)addr 197 .si_addr = addr
197 }; 198 };
198 force_sig_info(info.si_signo, &info, current); 199 force_sig_info(info.si_signo, &info, current);
199 return (tile_bundle_bits) 0; 200 return (tile_bundle_bits) 0;
200 } 201 }
201 202
202 if (unaligned_printk || unaligned_fixup_count == 0) { 203 if (unaligned_printk || unaligned_fixup_count == 0) {
203 printk("Process %d/%s: PC %#lx: Fixup of" 204 pr_info("Process %d/%s: PC %#lx: Fixup of"
204 " unaligned %s at %#lx.\n", 205 " unaligned %s at %#lx.\n",
205 current->pid, current->comm, regs->pc, 206 current->pid, current->comm, regs->pc,
206 (mem_op == MEMOP_LOAD || mem_op == MEMOP_LOAD_POSTINCR) ? 207 (mem_op == MEMOP_LOAD ||
207 "load" : "store", 208 mem_op == MEMOP_LOAD_POSTINCR) ?
208 (unsigned long)addr); 209 "load" : "store",
210 (unsigned long)addr);
209 if (!unaligned_printk) { 211 if (!unaligned_printk) {
210 printk("\n" 212#define P pr_info
211"Unaligned fixups in the kernel will slow your application considerably.\n" 213P("\n");
212"You can find them by writing \"1\" to /proc/sys/tile/unaligned_fixup/printk,\n" 214P("Unaligned fixups in the kernel will slow your application considerably.\n");
213"which requests the kernel show all unaligned fixups, or writing a \"0\"\n" 215P("To find them, write a \"1\" to /proc/sys/tile/unaligned_fixup/printk,\n");
214"to /proc/sys/tile/unaligned_fixup/enabled, in which case each unaligned\n" 216P("which requests the kernel show all unaligned fixups, or write a \"0\"\n");
215"access will become a SIGBUS you can debug. No further warnings will be\n" 217P("to /proc/sys/tile/unaligned_fixup/enabled, in which case each unaligned\n");
216"shown so as to avoid additional slowdown, but you can track the number\n" 218P("access will become a SIGBUS you can debug. No further warnings will be\n");
217"of fixups performed via /proc/sys/tile/unaligned_fixup/count.\n" 219P("shown so as to avoid additional slowdown, but you can track the number\n");
218"Use the tile-addr2line command (see \"info addr2line\") to decode PCs.\n" 220P("of fixups performed via /proc/sys/tile/unaligned_fixup/count.\n");
219 "\n"); 221P("Use the tile-addr2line command (see \"info addr2line\") to decode PCs.\n");
222P("\n");
223#undef P
220 } 224 }
221 } 225 }
222 ++unaligned_fixup_count; 226 ++unaligned_fixup_count;
@@ -276,7 +280,7 @@ void single_step_once(struct pt_regs *regs)
276 struct thread_info *info = (void *)current_thread_info(); 280 struct thread_info *info = (void *)current_thread_info();
277 struct single_step_state *state = info->step_state; 281 struct single_step_state *state = info->step_state;
278 int is_single_step = test_ti_thread_flag(info, TIF_SINGLESTEP); 282 int is_single_step = test_ti_thread_flag(info, TIF_SINGLESTEP);
279 tile_bundle_bits *buffer, *pc; 283 tile_bundle_bits __user *buffer, *pc;
280 tile_bundle_bits bundle; 284 tile_bundle_bits bundle;
281 int temp_reg; 285 int temp_reg;
282 int target_reg = TREG_LR; 286 int target_reg = TREG_LR;
@@ -306,21 +310,21 @@ void single_step_once(struct pt_regs *regs)
306 /* allocate a page of writable, executable memory */ 310 /* allocate a page of writable, executable memory */
307 state = kmalloc(sizeof(struct single_step_state), GFP_KERNEL); 311 state = kmalloc(sizeof(struct single_step_state), GFP_KERNEL);
308 if (state == NULL) { 312 if (state == NULL) {
309 printk("Out of kernel memory trying to single-step\n"); 313 pr_err("Out of kernel memory trying to single-step\n");
310 return; 314 return;
311 } 315 }
312 316
313 /* allocate a cache line of writable, executable memory */ 317 /* allocate a cache line of writable, executable memory */
314 down_write(&current->mm->mmap_sem); 318 down_write(&current->mm->mmap_sem);
315 buffer = (void *) do_mmap(0, 0, 64, 319 buffer = (void __user *) do_mmap(NULL, 0, 64,
316 PROT_EXEC | PROT_READ | PROT_WRITE, 320 PROT_EXEC | PROT_READ | PROT_WRITE,
317 MAP_PRIVATE | MAP_ANONYMOUS, 321 MAP_PRIVATE | MAP_ANONYMOUS,
318 0); 322 0);
319 up_write(&current->mm->mmap_sem); 323 up_write(&current->mm->mmap_sem);
320 324
321 if ((int)buffer < 0 && (int)buffer > -PAGE_SIZE) { 325 if (IS_ERR((void __force *)buffer)) {
322 kfree(state); 326 kfree(state);
323 printk("Out of kernel pages trying to single-step\n"); 327 pr_err("Out of kernel pages trying to single-step\n");
324 return; 328 return;
325 } 329 }
326 330
@@ -349,11 +353,14 @@ void single_step_once(struct pt_regs *regs)
349 if (regs->faultnum == INT_SWINT_1) 353 if (regs->faultnum == INT_SWINT_1)
350 regs->pc -= 8; 354 regs->pc -= 8;
351 355
352 pc = (tile_bundle_bits *)(regs->pc); 356 pc = (tile_bundle_bits __user *)(regs->pc);
353 bundle = pc[0]; 357 if (get_user(bundle, pc) != 0) {
358 pr_err("Couldn't read instruction at %p trying to step\n", pc);
359 return;
360 }
354 361
355 /* We'll follow the instruction with 2 ill op bundles */ 362 /* We'll follow the instruction with 2 ill op bundles */
356 state->orig_pc = (unsigned long) pc; 363 state->orig_pc = (unsigned long)pc;
357 state->next_pc = (unsigned long)(pc + 1); 364 state->next_pc = (unsigned long)(pc + 1);
358 state->branch_next_pc = 0; 365 state->branch_next_pc = 0;
359 state->update = 0; 366 state->update = 0;
@@ -633,7 +640,7 @@ void single_step_once(struct pt_regs *regs)
633 } 640 }
634 641
635 if (err) { 642 if (err) {
636 printk("Fault when writing to single-step buffer\n"); 643 pr_err("Fault when writing to single-step buffer\n");
637 return; 644 return;
638 } 645 }
639 646
@@ -641,12 +648,12 @@ void single_step_once(struct pt_regs *regs)
641 * Flush the buffer. 648 * Flush the buffer.
642 * We do a local flush only, since this is a thread-specific buffer. 649 * We do a local flush only, since this is a thread-specific buffer.
643 */ 650 */
644 __flush_icache_range((unsigned long) state->buffer, 651 __flush_icache_range((unsigned long)state->buffer,
645 (unsigned long) buffer); 652 (unsigned long)buffer);
646 653
647 /* Indicate enabled */ 654 /* Indicate enabled */
648 state->is_enabled = is_single_step; 655 state->is_enabled = is_single_step;
649 regs->pc = (unsigned long) state->buffer; 656 regs->pc = (unsigned long)state->buffer;
650 657
651 /* Fault immediately if we are coming back from a syscall. */ 658 /* Fault immediately if we are coming back from a syscall. */
652 if (regs->faultnum == INT_SWINT_1) 659 if (regs->faultnum == INT_SWINT_1)
diff --git a/arch/tile/kernel/smpboot.c b/arch/tile/kernel/smpboot.c
index aa3aafdb4b93..74d62d098edf 100644
--- a/arch/tile/kernel/smpboot.c
+++ b/arch/tile/kernel/smpboot.c
@@ -25,19 +25,13 @@
25#include <linux/percpu.h> 25#include <linux/percpu.h>
26#include <linux/delay.h> 26#include <linux/delay.h>
27#include <linux/err.h> 27#include <linux/err.h>
28#include <linux/irq.h>
28#include <asm/mmu_context.h> 29#include <asm/mmu_context.h>
29#include <asm/tlbflush.h> 30#include <asm/tlbflush.h>
30#include <asm/sections.h> 31#include <asm/sections.h>
31 32
32/*
33 * This assembly function is provided in entry.S.
34 * When called, it loops on a nap instruction forever.
35 * FIXME: should be in a header somewhere.
36 */
37extern void smp_nap(void);
38
39/* State of each CPU. */ 33/* State of each CPU. */
40DEFINE_PER_CPU(int, cpu_state) = { 0 }; 34static DEFINE_PER_CPU(int, cpu_state) = { 0 };
41 35
42/* The messaging code jumps to this pointer during boot-up */ 36/* The messaging code jumps to this pointer during boot-up */
43unsigned long start_cpu_function_addr; 37unsigned long start_cpu_function_addr;
@@ -74,7 +68,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
74 */ 68 */
75 rc = sched_setaffinity(current->pid, cpumask_of(boot_cpu)); 69 rc = sched_setaffinity(current->pid, cpumask_of(boot_cpu));
76 if (rc != 0) 70 if (rc != 0)
77 printk("Couldn't set init affinity to boot cpu (%ld)\n", rc); 71 pr_err("Couldn't set init affinity to boot cpu (%ld)\n", rc);
78 72
79 /* Print information about disabled and dataplane cpus. */ 73 /* Print information about disabled and dataplane cpus. */
80 print_disabled_cpus(); 74 print_disabled_cpus();
@@ -134,13 +128,13 @@ static __init int reset_init_affinity(void)
134{ 128{
135 long rc = sched_setaffinity(current->pid, &init_affinity); 129 long rc = sched_setaffinity(current->pid, &init_affinity);
136 if (rc != 0) 130 if (rc != 0)
137 printk(KERN_WARNING "couldn't reset init affinity (%ld)\n", 131 pr_warning("couldn't reset init affinity (%ld)\n",
138 rc); 132 rc);
139 return 0; 133 return 0;
140} 134}
141late_initcall(reset_init_affinity); 135late_initcall(reset_init_affinity);
142 136
143struct cpumask cpu_started __cpuinitdata; 137static struct cpumask cpu_started __cpuinitdata;
144 138
145/* 139/*
146 * Activate a secondary processor. Very minimal; don't add anything 140 * Activate a secondary processor. Very minimal; don't add anything
@@ -172,9 +166,6 @@ static void __cpuinit start_secondary(void)
172 BUG(); 166 BUG();
173 enter_lazy_tlb(&init_mm, current); 167 enter_lazy_tlb(&init_mm, current);
174 168
175 /* Enable IRQs. */
176 init_per_tile_IRQs();
177
178 /* Allow hypervisor messages to be received */ 169 /* Allow hypervisor messages to be received */
179 init_messaging(); 170 init_messaging();
180 local_irq_enable(); 171 local_irq_enable();
@@ -182,7 +173,7 @@ static void __cpuinit start_secondary(void)
182 /* Indicate that we're ready to come up. */ 173 /* Indicate that we're ready to come up. */
183 /* Must not do this before we're ready to receive messages */ 174 /* Must not do this before we're ready to receive messages */
184 if (cpumask_test_and_set_cpu(cpuid, &cpu_started)) { 175 if (cpumask_test_and_set_cpu(cpuid, &cpu_started)) {
185 printk(KERN_WARNING "CPU#%d already started!\n", cpuid); 176 pr_warning("CPU#%d already started!\n", cpuid);
186 for (;;) 177 for (;;)
187 local_irq_enable(); 178 local_irq_enable();
188 } 179 }
@@ -190,13 +181,10 @@ static void __cpuinit start_secondary(void)
190 smp_nap(); 181 smp_nap();
191} 182}
192 183
193void setup_mpls(void); /* from kernel/setup.c */
194void store_permanent_mappings(void);
195
196/* 184/*
197 * Bring a secondary processor online. 185 * Bring a secondary processor online.
198 */ 186 */
199void __cpuinit online_secondary() 187void __cpuinit online_secondary(void)
200{ 188{
201 /* 189 /*
202 * low-memory mappings have been cleared, flush them from 190 * low-memory mappings have been cleared, flush them from
@@ -222,17 +210,14 @@ void __cpuinit online_secondary()
222 ipi_call_unlock(); 210 ipi_call_unlock();
223 __get_cpu_var(cpu_state) = CPU_ONLINE; 211 __get_cpu_var(cpu_state) = CPU_ONLINE;
224 212
225 /* Set up MPLs for this processor */ 213 /* Set up tile-specific state for this cpu. */
226 setup_mpls(); 214 setup_cpu(0);
227
228 215
229 /* Set up tile-timer clock-event device on this cpu */ 216 /* Set up tile-timer clock-event device on this cpu */
230 setup_tile_timer(); 217 setup_tile_timer();
231 218
232 preempt_enable(); 219 preempt_enable();
233 220
234 store_permanent_mappings();
235
236 cpu_idle(); 221 cpu_idle();
237} 222}
238 223
@@ -242,7 +227,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
242 static int timeout; 227 static int timeout;
243 for (; !cpumask_test_cpu(cpu, &cpu_started); timeout++) { 228 for (; !cpumask_test_cpu(cpu, &cpu_started); timeout++) {
244 if (timeout >= 50000) { 229 if (timeout >= 50000) {
245 printk(KERN_INFO "skipping unresponsive cpu%d\n", cpu); 230 pr_info("skipping unresponsive cpu%d\n", cpu);
246 local_irq_enable(); 231 local_irq_enable();
247 return -EIO; 232 return -EIO;
248 } 233 }
@@ -289,5 +274,5 @@ void __init smp_cpus_done(unsigned int max_cpus)
289 ; 274 ;
290 rc = sched_setaffinity(current->pid, cpumask_of(cpu)); 275 rc = sched_setaffinity(current->pid, cpumask_of(cpu));
291 if (rc != 0) 276 if (rc != 0)
292 printk("Couldn't set init affinity to cpu %d (%d)\n", cpu, rc); 277 pr_err("Couldn't set init affinity to cpu %d (%d)\n", cpu, rc);
293} 278}
diff --git a/arch/tile/kernel/stack.c b/arch/tile/kernel/stack.c
index 382170b4b40a..b6268d3ae869 100644
--- a/arch/tile/kernel/stack.c
+++ b/arch/tile/kernel/stack.c
@@ -56,13 +56,16 @@ static int valid_address(struct KBacktraceIterator *kbt, VirtualAddress address)
56 HV_PTE pte; 56 HV_PTE pte;
57 struct page *page; 57 struct page *page;
58 58
59 if (l1_pgtable == NULL)
60 return 0; /* can't read user space in other tasks */
61
59 pte = l1_pgtable[HV_L1_INDEX(address)]; 62 pte = l1_pgtable[HV_L1_INDEX(address)];
60 if (!hv_pte_get_present(pte)) 63 if (!hv_pte_get_present(pte))
61 return 0; 64 return 0;
62 pfn = hv_pte_get_pfn(pte); 65 pfn = hv_pte_get_pfn(pte);
63 if (pte_huge(pte)) { 66 if (pte_huge(pte)) {
64 if (!pfn_valid(pfn)) { 67 if (!pfn_valid(pfn)) {
65 printk(KERN_ERR "huge page has bad pfn %#lx\n", pfn); 68 pr_err("huge page has bad pfn %#lx\n", pfn);
66 return 0; 69 return 0;
67 } 70 }
68 return hv_pte_get_present(pte) && hv_pte_get_readable(pte); 71 return hv_pte_get_present(pte) && hv_pte_get_readable(pte);
@@ -70,7 +73,7 @@ static int valid_address(struct KBacktraceIterator *kbt, VirtualAddress address)
70 73
71 page = pfn_to_page(pfn); 74 page = pfn_to_page(pfn);
72 if (PageHighMem(page)) { 75 if (PageHighMem(page)) {
73 printk(KERN_ERR "L2 page table not in LOWMEM (%#llx)\n", 76 pr_err("L2 page table not in LOWMEM (%#llx)\n",
74 HV_PFN_TO_CPA(pfn)); 77 HV_PFN_TO_CPA(pfn));
75 return 0; 78 return 0;
76 } 79 }
@@ -91,13 +94,12 @@ static bool read_memory_func(void *result, VirtualAddress address,
91 /* We only tolerate kernel-space reads of this task's stack */ 94 /* We only tolerate kernel-space reads of this task's stack */
92 if (!in_kernel_stack(kbt, address)) 95 if (!in_kernel_stack(kbt, address))
93 return 0; 96 return 0;
94 } else if (kbt->pgtable == NULL) {
95 return 0; /* can't read user space in other tasks */
96 } else if (!valid_address(kbt, address)) { 97 } else if (!valid_address(kbt, address)) {
97 return 0; /* invalid user-space address */ 98 return 0; /* invalid user-space address */
98 } 99 }
99 pagefault_disable(); 100 pagefault_disable();
100 retval = __copy_from_user_inatomic(result, (const void *)address, 101 retval = __copy_from_user_inatomic(result,
102 (void __user __force *)address,
101 size); 103 size);
102 pagefault_enable(); 104 pagefault_enable();
103 return (retval == 0); 105 return (retval == 0);
@@ -131,14 +133,14 @@ static struct pt_regs *valid_fault_handler(struct KBacktraceIterator* kbt)
131 in_kernel_stack(kbt, p->sp) && 133 in_kernel_stack(kbt, p->sp) &&
132 p->sp >= sp) { 134 p->sp >= sp) {
133 if (kbt->verbose) 135 if (kbt->verbose)
134 printk(KERN_ERR " <%s while in kernel mode>\n", fault); 136 pr_err(" <%s while in kernel mode>\n", fault);
135 } else if (EX1_PL(p->ex1) == USER_PL && 137 } else if (EX1_PL(p->ex1) == USER_PL &&
136 p->pc < PAGE_OFFSET && 138 p->pc < PAGE_OFFSET &&
137 p->sp < PAGE_OFFSET) { 139 p->sp < PAGE_OFFSET) {
138 if (kbt->verbose) 140 if (kbt->verbose)
139 printk(KERN_ERR " <%s while in user mode>\n", fault); 141 pr_err(" <%s while in user mode>\n", fault);
140 } else if (kbt->verbose) { 142 } else if (kbt->verbose) {
141 printk(KERN_ERR " (odd fault: pc %#lx, sp %#lx, ex1 %#lx?)\n", 143 pr_err(" (odd fault: pc %#lx, sp %#lx, ex1 %#lx?)\n",
142 p->pc, p->sp, p->ex1); 144 p->pc, p->sp, p->ex1);
143 p = NULL; 145 p = NULL;
144 } 146 }
@@ -166,13 +168,13 @@ static struct pt_regs *valid_sigframe(struct KBacktraceIterator* kbt)
166 if (!valid_address(kbt, b->sp) || 168 if (!valid_address(kbt, b->sp) ||
167 !valid_address(kbt, sigframe_top)) { 169 !valid_address(kbt, sigframe_top)) {
168 if (kbt->verbose) 170 if (kbt->verbose)
169 printk(" (odd signal: sp %#lx?)\n", 171 pr_err(" (odd signal: sp %#lx?)\n",
170 (unsigned long)(b->sp)); 172 (unsigned long)(b->sp));
171 return NULL; 173 return NULL;
172 } 174 }
173 frame = (struct rt_sigframe *)b->sp; 175 frame = (struct rt_sigframe *)b->sp;
174 if (kbt->verbose) { 176 if (kbt->verbose) {
175 printk(KERN_ERR " <received signal %d>\n", 177 pr_err(" <received signal %d>\n",
176 frame->info.si_signo); 178 frame->info.si_signo);
177 } 179 }
178 return &frame->uc.uc_mcontext.regs; 180 return &frame->uc.uc_mcontext.regs;
@@ -180,7 +182,7 @@ static struct pt_regs *valid_sigframe(struct KBacktraceIterator* kbt)
180 return NULL; 182 return NULL;
181} 183}
182 184
183int KBacktraceIterator_is_sigreturn(struct KBacktraceIterator *kbt) 185static int KBacktraceIterator_is_sigreturn(struct KBacktraceIterator *kbt)
184{ 186{
185 return is_sigreturn(kbt->it.pc); 187 return is_sigreturn(kbt->it.pc);
186} 188}
@@ -231,13 +233,13 @@ static void validate_stack(struct pt_regs *regs)
231 unsigned long sp = stack_pointer; 233 unsigned long sp = stack_pointer;
232 234
233 if (EX1_PL(regs->ex1) == KERNEL_PL && regs->sp >= ksp0) { 235 if (EX1_PL(regs->ex1) == KERNEL_PL && regs->sp >= ksp0) {
234 printk("WARNING: cpu %d: kernel stack page %#lx underrun!\n" 236 pr_err("WARNING: cpu %d: kernel stack page %#lx underrun!\n"
235 " sp %#lx (%#lx in caller), caller pc %#lx, lr %#lx\n", 237 " sp %#lx (%#lx in caller), caller pc %#lx, lr %#lx\n",
236 cpu, ksp0_base, sp, regs->sp, regs->pc, regs->lr); 238 cpu, ksp0_base, sp, regs->sp, regs->pc, regs->lr);
237 } 239 }
238 240
239 else if (sp < ksp0_base + sizeof(struct thread_info)) { 241 else if (sp < ksp0_base + sizeof(struct thread_info)) {
240 printk("WARNING: cpu %d: kernel stack page %#lx overrun!\n" 242 pr_err("WARNING: cpu %d: kernel stack page %#lx overrun!\n"
241 " sp %#lx (%#lx in caller), caller pc %#lx, lr %#lx\n", 243 " sp %#lx (%#lx in caller), caller pc %#lx, lr %#lx\n",
242 cpu, ksp0_base, sp, regs->sp, regs->pc, regs->lr); 244 cpu, ksp0_base, sp, regs->sp, regs->pc, regs->lr);
243 } 245 }
@@ -280,7 +282,7 @@ void KBacktraceIterator_init(struct KBacktraceIterator *kbt,
280 if (!PageHighMem(page)) 282 if (!PageHighMem(page))
281 kbt->pgtable = __va(pgdir_pa); 283 kbt->pgtable = __va(pgdir_pa);
282 else 284 else
283 printk(KERN_ERR "page table not in LOWMEM" 285 pr_err("page table not in LOWMEM"
284 " (%#llx)\n", pgdir_pa); 286 " (%#llx)\n", pgdir_pa);
285 } 287 }
286 local_flush_tlb_all(); 288 local_flush_tlb_all();
@@ -288,13 +290,12 @@ void KBacktraceIterator_init(struct KBacktraceIterator *kbt,
288 } 290 }
289 291
290 if (regs == NULL) { 292 if (regs == NULL) {
291 extern const void *get_switch_to_pc(void);
292 if (is_current || t->state == TASK_RUNNING) { 293 if (is_current || t->state == TASK_RUNNING) {
293 /* Can't do this; we need registers */ 294 /* Can't do this; we need registers */
294 kbt->end = 1; 295 kbt->end = 1;
295 return; 296 return;
296 } 297 }
297 pc = (ulong) get_switch_to_pc(); 298 pc = get_switch_to_pc();
298 lr = t->thread.pc; 299 lr = t->thread.pc;
299 sp = t->thread.ksp; 300 sp = t->thread.ksp;
300 r52 = 0; 301 r52 = 0;
@@ -344,8 +345,8 @@ void tile_show_stack(struct KBacktraceIterator *kbt, int headers)
344 * then bust_spinlocks() spit out a space in front of us 345 * then bust_spinlocks() spit out a space in front of us
345 * and it will mess up our KERN_ERR. 346 * and it will mess up our KERN_ERR.
346 */ 347 */
347 printk("\n"); 348 pr_err("\n");
348 printk(KERN_ERR "Starting stack dump of tid %d, pid %d (%s)" 349 pr_err("Starting stack dump of tid %d, pid %d (%s)"
349 " on cpu %d at cycle %lld\n", 350 " on cpu %d at cycle %lld\n",
350 kbt->task->pid, kbt->task->tgid, kbt->task->comm, 351 kbt->task->pid, kbt->task->tgid, kbt->task->comm,
351 smp_processor_id(), get_cycles()); 352 smp_processor_id(), get_cycles());
@@ -385,17 +386,17 @@ void tile_show_stack(struct KBacktraceIterator *kbt, int headers)
385 namebuf[sizeof(namebuf)-1] = '\0'; 386 namebuf[sizeof(namebuf)-1] = '\0';
386 } 387 }
387 388
388 printk(KERN_ERR " frame %d: 0x%lx %s(sp 0x%lx)\n", 389 pr_err(" frame %d: 0x%lx %s(sp 0x%lx)\n",
389 i++, address, namebuf, (unsigned long)(kbt->it.sp)); 390 i++, address, namebuf, (unsigned long)(kbt->it.sp));
390 391
391 if (i >= 100) { 392 if (i >= 100) {
392 printk(KERN_ERR "Stack dump truncated" 393 pr_err("Stack dump truncated"
393 " (%d frames)\n", i); 394 " (%d frames)\n", i);
394 break; 395 break;
395 } 396 }
396 } 397 }
397 if (headers) 398 if (headers)
398 printk(KERN_ERR "Stack dump complete\n"); 399 pr_err("Stack dump complete\n");
399} 400}
400EXPORT_SYMBOL(tile_show_stack); 401EXPORT_SYMBOL(tile_show_stack);
401 402
diff --git a/arch/tile/kernel/sys.c b/arch/tile/kernel/sys.c
index 0427978cea0a..f0f87eab8c39 100644
--- a/arch/tile/kernel/sys.c
+++ b/arch/tile/kernel/sys.c
@@ -27,11 +27,10 @@
27#include <linux/mempolicy.h> 27#include <linux/mempolicy.h>
28#include <linux/binfmts.h> 28#include <linux/binfmts.h>
29#include <linux/fs.h> 29#include <linux/fs.h>
30#include <linux/syscalls.h> 30#include <linux/compat.h>
31#include <linux/uaccess.h> 31#include <linux/uaccess.h>
32#include <linux/signal.h> 32#include <linux/signal.h>
33#include <asm/syscalls.h> 33#include <asm/syscalls.h>
34
35#include <asm/pgtable.h> 34#include <asm/pgtable.h>
36#include <asm/homecache.h> 35#include <asm/homecache.h>
37#include <arch/chip.h> 36#include <arch/chip.h>
@@ -74,10 +73,7 @@ int sys32_fadvise64_64(int fd, u32 offset_lo, u32 offset_hi,
74 73
75#endif /* 32-bit syscall wrappers */ 74#endif /* 32-bit syscall wrappers */
76 75
77/* 76/* Note: used by the compat code even in 64-bit Linux. */
78 * This API uses a 4KB-page-count offset into the file descriptor.
79 * It is likely not the right API to use on a 64-bit platform.
80 */
81SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, 77SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
82 unsigned long, prot, unsigned long, flags, 78 unsigned long, prot, unsigned long, flags,
83 unsigned long, fd, unsigned long, off_4k) 79 unsigned long, fd, unsigned long, off_4k)
@@ -89,10 +85,7 @@ SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
89 off_4k >> PAGE_ADJUST); 85 off_4k >> PAGE_ADJUST);
90} 86}
91 87
92/* 88#ifdef __tilegx__
93 * This API uses a byte offset into the file descriptor.
94 * It is likely not the right API to use on a 32-bit platform.
95 */
96SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, 89SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
97 unsigned long, prot, unsigned long, flags, 90 unsigned long, prot, unsigned long, flags,
98 unsigned long, fd, off_t, offset) 91 unsigned long, fd, off_t, offset)
@@ -102,6 +95,7 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
102 return sys_mmap_pgoff(addr, len, prot, flags, fd, 95 return sys_mmap_pgoff(addr, len, prot, flags, fd,
103 offset >> PAGE_SHIFT); 96 offset >> PAGE_SHIFT);
104} 97}
98#endif
105 99
106 100
107/* Provide the actual syscall number to call mapping. */ 101/* Provide the actual syscall number to call mapping. */
@@ -116,6 +110,10 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
116#define sys_sync_file_range sys_sync_file_range2 110#define sys_sync_file_range sys_sync_file_range2
117#endif 111#endif
118 112
113/*
114 * Note that we can't include <linux/unistd.h> here since the header
115 * guard will defeat us; <asm/unistd.h> checks for __SYSCALL as well.
116 */
119void *sys_call_table[__NR_syscalls] = { 117void *sys_call_table[__NR_syscalls] = {
120 [0 ... __NR_syscalls-1] = sys_ni_syscall, 118 [0 ... __NR_syscalls-1] = sys_ni_syscall,
121#include <asm/unistd.h> 119#include <asm/unistd.h>
diff --git a/arch/tile/kernel/time.c b/arch/tile/kernel/time.c
index 47500a324e32..b9ab25a889b5 100644
--- a/arch/tile/kernel/time.c
+++ b/arch/tile/kernel/time.c
@@ -23,6 +23,7 @@
23#include <linux/smp.h> 23#include <linux/smp.h>
24#include <linux/delay.h> 24#include <linux/delay.h>
25#include <asm/irq_regs.h> 25#include <asm/irq_regs.h>
26#include <asm/traps.h>
26#include <hv/hypervisor.h> 27#include <hv/hypervisor.h>
27#include <arch/interrupts.h> 28#include <arch/interrupts.h>
28#include <arch/spr_def.h> 29#include <arch/spr_def.h>
@@ -45,13 +46,13 @@ static cycles_t cycles_per_sec __write_once;
45 */ 46 */
46#define TILE_MINSEC 5 47#define TILE_MINSEC 5
47 48
48cycles_t get_clock_rate() 49cycles_t get_clock_rate(void)
49{ 50{
50 return cycles_per_sec; 51 return cycles_per_sec;
51} 52}
52 53
53#if CHIP_HAS_SPLIT_CYCLE() 54#if CHIP_HAS_SPLIT_CYCLE()
54cycles_t get_cycles() 55cycles_t get_cycles(void)
55{ 56{
56 unsigned int high = __insn_mfspr(SPR_CYCLE_HIGH); 57 unsigned int high = __insn_mfspr(SPR_CYCLE_HIGH);
57 unsigned int low = __insn_mfspr(SPR_CYCLE_LOW); 58 unsigned int low = __insn_mfspr(SPR_CYCLE_LOW);
@@ -67,7 +68,7 @@ cycles_t get_cycles()
67} 68}
68#endif 69#endif
69 70
70cycles_t clocksource_get_cycles(struct clocksource *cs) 71static cycles_t clocksource_get_cycles(struct clocksource *cs)
71{ 72{
72 return get_cycles(); 73 return get_cycles();
73} 74}
diff --git a/arch/tile/kernel/traps.c b/arch/tile/kernel/traps.c
index 12cb10f38527..3870abbeeaa2 100644
--- a/arch/tile/kernel/traps.c
+++ b/arch/tile/kernel/traps.c
@@ -20,6 +20,9 @@
20#include <linux/uaccess.h> 20#include <linux/uaccess.h>
21#include <linux/ptrace.h> 21#include <linux/ptrace.h>
22#include <asm/opcode-tile.h> 22#include <asm/opcode-tile.h>
23#include <asm/opcode_constants.h>
24#include <asm/stack.h>
25#include <asm/traps.h>
23 26
24#include <arch/interrupts.h> 27#include <arch/interrupts.h>
25#include <arch/spr_def.h> 28#include <arch/spr_def.h>
@@ -42,7 +45,7 @@ static int __init setup_unaligned_fixup(char *str)
42 if (strict_strtol(str, 0, &val) != 0) 45 if (strict_strtol(str, 0, &val) != 0)
43 return 0; 46 return 0;
44 unaligned_fixup = val; 47 unaligned_fixup = val;
45 printk("Fixups for unaligned data accesses are %s\n", 48 pr_info("Fixups for unaligned data accesses are %s\n",
46 unaligned_fixup >= 0 ? 49 unaligned_fixup >= 0 ?
47 (unaligned_fixup ? "enabled" : "disabled") : 50 (unaligned_fixup ? "enabled" : "disabled") :
48 "completely disabled"); 51 "completely disabled");
@@ -56,7 +59,7 @@ static int dma_disabled;
56 59
57static int __init nodma(char *str) 60static int __init nodma(char *str)
58{ 61{
59 printk("User-space DMA is disabled\n"); 62 pr_info("User-space DMA is disabled\n");
60 dma_disabled = 1; 63 dma_disabled = 1;
61 return 1; 64 return 1;
62} 65}
@@ -97,20 +100,106 @@ static int retry_gpv(unsigned int gpv_reason)
97 100
98#endif /* CHIP_HAS_TILE_DMA() */ 101#endif /* CHIP_HAS_TILE_DMA() */
99 102
100/* Defined inside do_trap(), below. */
101#ifdef __tilegx__ 103#ifdef __tilegx__
102extern tilegx_bundle_bits bpt_code; 104#define bundle_bits tilegx_bundle_bits
103#else 105#else
104extern tile_bundle_bits bpt_code; 106#define bundle_bits tile_bundle_bits
105#endif 107#endif
106 108
109extern bundle_bits bpt_code;
110
111asm(".pushsection .rodata.bpt_code,\"a\";"
112 ".align 8;"
113 "bpt_code: bpt;"
114 ".size bpt_code,.-bpt_code;"
115 ".popsection");
116
117static int special_ill(bundle_bits bundle, int *sigp, int *codep)
118{
119 int sig, code, maxcode;
120
121 if (bundle == bpt_code) {
122 *sigp = SIGTRAP;
123 *codep = TRAP_BRKPT;
124 return 1;
125 }
126
127 /* If it's a "raise" bundle, then "ill" must be in pipe X1. */
128#ifdef __tilegx__
129 if ((bundle & TILEGX_BUNDLE_MODE_MASK) != 0)
130 return 0;
131 if (get_Opcode_X1(bundle) != UNARY_OPCODE_X1)
132 return 0;
133 if (get_UnaryOpcodeExtension_X1(bundle) != ILL_UNARY_OPCODE_X1)
134 return 0;
135#else
136 if (bundle & TILE_BUNDLE_Y_ENCODING_MASK)
137 return 0;
138 if (get_Opcode_X1(bundle) != SHUN_0_OPCODE_X1)
139 return 0;
140 if (get_UnShOpcodeExtension_X1(bundle) != UN_0_SHUN_0_OPCODE_X1)
141 return 0;
142 if (get_UnOpcodeExtension_X1(bundle) != ILL_UN_0_SHUN_0_OPCODE_X1)
143 return 0;
144#endif
145
146 /* Check that the magic distinguishers are set to mean "raise". */
147 if (get_Dest_X1(bundle) != 29 || get_SrcA_X1(bundle) != 37)
148 return 0;
149
150 /* There must be an "addli zero, zero, VAL" in X0. */
151 if (get_Opcode_X0(bundle) != ADDLI_OPCODE_X0)
152 return 0;
153 if (get_Dest_X0(bundle) != TREG_ZERO)
154 return 0;
155 if (get_SrcA_X0(bundle) != TREG_ZERO)
156 return 0;
157
158 /*
159 * Validate the proposed signal number and si_code value.
160 * Note that we embed these in the static instruction itself
161 * so that we perturb the register state as little as possible
162 * at the time of the actual fault; it's unlikely you'd ever
163 * need to dynamically choose which kind of fault to raise
164 * from user space.
165 */
166 sig = get_Imm16_X0(bundle) & 0x3f;
167 switch (sig) {
168 case SIGILL:
169 maxcode = NSIGILL;
170 break;
171 case SIGFPE:
172 maxcode = NSIGFPE;
173 break;
174 case SIGSEGV:
175 maxcode = NSIGSEGV;
176 break;
177 case SIGBUS:
178 maxcode = NSIGBUS;
179 break;
180 case SIGTRAP:
181 maxcode = NSIGTRAP;
182 break;
183 default:
184 return 0;
185 }
186 code = (get_Imm16_X0(bundle) >> 6) & 0xf;
187 if (code <= 0 || code > maxcode)
188 return 0;
189
190 /* Make it the requested signal. */
191 *sigp = sig;
192 *codep = code | __SI_FAULT;
193 return 1;
194}
195
107void __kprobes do_trap(struct pt_regs *regs, int fault_num, 196void __kprobes do_trap(struct pt_regs *regs, int fault_num,
108 unsigned long reason) 197 unsigned long reason)
109{ 198{
110 siginfo_t info = { 0 }; 199 siginfo_t info = { 0 };
111 int signo, code; 200 int signo, code;
112 unsigned long address; 201 unsigned long address;
113 __typeof__(bpt_code) instr; 202 bundle_bits instr;
114 203
115 /* Re-enable interrupts. */ 204 /* Re-enable interrupts. */
116 local_irq_enable(); 205 local_irq_enable();
@@ -122,10 +211,10 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num,
122 if (!user_mode(regs)) { 211 if (!user_mode(regs)) {
123 if (fixup_exception(regs)) /* only UNALIGN_DATA in practice */ 212 if (fixup_exception(regs)) /* only UNALIGN_DATA in practice */
124 return; 213 return;
125 printk(KERN_ALERT "Kernel took bad trap %d at PC %#lx\n", 214 pr_alert("Kernel took bad trap %d at PC %#lx\n",
126 fault_num, regs->pc); 215 fault_num, regs->pc);
127 if (fault_num == INT_GPV) 216 if (fault_num == INT_GPV)
128 printk(KERN_ALERT "GPV_REASON is %#lx\n", reason); 217 pr_alert("GPV_REASON is %#lx\n", reason);
129 show_regs(regs); 218 show_regs(regs);
130 do_exit(SIGKILL); /* FIXME: implement i386 die() */ 219 do_exit(SIGKILL); /* FIXME: implement i386 die() */
131 return; 220 return;
@@ -133,22 +222,14 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num,
133 222
134 switch (fault_num) { 223 switch (fault_num) {
135 case INT_ILL: 224 case INT_ILL:
136 asm(".pushsection .rodata.bpt_code,\"a\";" 225 if (copy_from_user(&instr, (void __user *)regs->pc,
137 ".align 8;" 226 sizeof(instr))) {
138 "bpt_code: bpt;" 227 pr_err("Unreadable instruction for INT_ILL:"
139 ".size bpt_code,.-bpt_code;"
140 ".popsection");
141
142 if (copy_from_user(&instr, (void *)regs->pc, sizeof(instr))) {
143 printk(KERN_ERR "Unreadable instruction for INT_ILL:"
144 " %#lx\n", regs->pc); 228 " %#lx\n", regs->pc);
145 do_exit(SIGKILL); 229 do_exit(SIGKILL);
146 return; 230 return;
147 } 231 }
148 if (instr == bpt_code) { 232 if (!special_ill(instr, &signo, &code)) {
149 signo = SIGTRAP;
150 code = TRAP_BRKPT;
151 } else {
152 signo = SIGILL; 233 signo = SIGILL;
153 code = ILL_ILLOPC; 234 code = ILL_ILLOPC;
154 } 235 }
@@ -181,7 +262,8 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num,
181 if (unaligned_fixup >= 0) { 262 if (unaligned_fixup >= 0) {
182 struct single_step_state *state = 263 struct single_step_state *state =
183 current_thread_info()->step_state; 264 current_thread_info()->step_state;
184 if (!state || (void *)(regs->pc) != state->buffer) { 265 if (!state ||
266 (void __user *)(regs->pc) != state->buffer) {
185 single_step_once(regs); 267 single_step_once(regs);
186 return; 268 return;
187 } 269 }
@@ -221,17 +303,15 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num,
221 303
222 info.si_signo = signo; 304 info.si_signo = signo;
223 info.si_code = code; 305 info.si_code = code;
224 info.si_addr = (void *)address; 306 info.si_addr = (void __user *)address;
225 if (signo == SIGILL) 307 if (signo == SIGILL)
226 info.si_trapno = fault_num; 308 info.si_trapno = fault_num;
227 force_sig_info(signo, &info, current); 309 force_sig_info(signo, &info, current);
228} 310}
229 311
230extern void _dump_stack(int dummy, ulong pc, ulong lr, ulong sp, ulong r52);
231
232void kernel_double_fault(int dummy, ulong pc, ulong lr, ulong sp, ulong r52) 312void kernel_double_fault(int dummy, ulong pc, ulong lr, ulong sp, ulong r52)
233{ 313{
234 _dump_stack(dummy, pc, lr, sp, r52); 314 _dump_stack(dummy, pc, lr, sp, r52);
235 printk("Double fault: exiting\n"); 315 pr_emerg("Double fault: exiting\n");
236 machine_halt(); 316 machine_halt();
237} 317}
diff --git a/arch/tile/kernel/vmlinux.lds.S b/arch/tile/kernel/vmlinux.lds.S
index 77388c1415bd..25fdc0c1839a 100644
--- a/arch/tile/kernel/vmlinux.lds.S
+++ b/arch/tile/kernel/vmlinux.lds.S
@@ -36,8 +36,8 @@ SECTIONS
36 36
37 /* Now the real code */ 37 /* Now the real code */
38 . = ALIGN(0x20000); 38 . = ALIGN(0x20000);
39 HEAD_TEXT_SECTION :text =0
40 .text : AT (ADDR(.text) - LOAD_OFFSET) { 39 .text : AT (ADDR(.text) - LOAD_OFFSET) {
40 HEAD_TEXT
41 SCHED_TEXT 41 SCHED_TEXT
42 LOCK_TEXT 42 LOCK_TEXT
43 __fix_text_end = .; /* tile-cpack won't rearrange before this */ 43 __fix_text_end = .; /* tile-cpack won't rearrange before this */
@@ -46,7 +46,7 @@ SECTIONS
46 *(.coldtext*) 46 *(.coldtext*)
47 *(.fixup) 47 *(.fixup)
48 *(.gnu.warning) 48 *(.gnu.warning)
49 } 49 } :text =0
50 _etext = .; 50 _etext = .;
51 51
52 /* "Init" is divided into two areas with very different virtual addresses. */ 52 /* "Init" is divided into two areas with very different virtual addresses. */
diff --git a/arch/tile/lib/atomic_32.c b/arch/tile/lib/atomic_32.c
index be1e8acd105d..8040b42a8eea 100644
--- a/arch/tile/lib/atomic_32.c
+++ b/arch/tile/lib/atomic_32.c
@@ -18,27 +18,10 @@
18#include <linux/module.h> 18#include <linux/module.h>
19#include <linux/mm.h> 19#include <linux/mm.h>
20#include <asm/atomic.h> 20#include <asm/atomic.h>
21#include <asm/futex.h>
21#include <arch/chip.h> 22#include <arch/chip.h>
22 23
23/* The routines in atomic_asm.S are private, so we only declare them here. */ 24/* See <asm/atomic_32.h> */
24extern struct __get_user __atomic_cmpxchg(volatile int *p,
25 int *lock, int o, int n);
26extern struct __get_user __atomic_xchg(volatile int *p, int *lock, int n);
27extern struct __get_user __atomic_xchg_add(volatile int *p, int *lock, int n);
28extern struct __get_user __atomic_xchg_add_unless(volatile int *p,
29 int *lock, int o, int n);
30extern struct __get_user __atomic_or(volatile int *p, int *lock, int n);
31extern struct __get_user __atomic_andn(volatile int *p, int *lock, int n);
32extern struct __get_user __atomic_xor(volatile int *p, int *lock, int n);
33
34extern u64 __atomic64_cmpxchg(volatile u64 *p, int *lock, u64 o, u64 n);
35extern u64 __atomic64_xchg(volatile u64 *p, int *lock, u64 n);
36extern u64 __atomic64_xchg_add(volatile u64 *p, int *lock, u64 n);
37extern u64 __atomic64_xchg_add_unless(volatile u64 *p,
38 int *lock, u64 o, u64 n);
39
40
41/* See <asm/atomic.h> */
42#if ATOMIC_LOCKS_FOUND_VIA_TABLE() 25#if ATOMIC_LOCKS_FOUND_VIA_TABLE()
43 26
44/* 27/*
@@ -209,7 +192,7 @@ u64 _atomic64_cmpxchg(atomic64_t *v, u64 o, u64 n)
209EXPORT_SYMBOL(_atomic64_cmpxchg); 192EXPORT_SYMBOL(_atomic64_cmpxchg);
210 193
211 194
212static inline int *__futex_setup(__user int *v) 195static inline int *__futex_setup(int __user *v)
213{ 196{
214 /* 197 /*
215 * Issue a prefetch to the counter to bring it into cache. 198 * Issue a prefetch to the counter to bring it into cache.
@@ -217,37 +200,37 @@ static inline int *__futex_setup(__user int *v)
217 * since it might fault; instead we do a prefetch into the L2. 200 * since it might fault; instead we do a prefetch into the L2.
218 */ 201 */
219 __insn_prefetch(v); 202 __insn_prefetch(v);
220 return __atomic_hashed_lock(v); 203 return __atomic_hashed_lock((int __force *)v);
221} 204}
222 205
223struct __get_user futex_set(int *v, int i) 206struct __get_user futex_set(int __user *v, int i)
224{ 207{
225 return __atomic_xchg(v, __futex_setup(v), i); 208 return __atomic_xchg((int __force *)v, __futex_setup(v), i);
226} 209}
227 210
228struct __get_user futex_add(int *v, int n) 211struct __get_user futex_add(int __user *v, int n)
229{ 212{
230 return __atomic_xchg_add(v, __futex_setup(v), n); 213 return __atomic_xchg_add((int __force *)v, __futex_setup(v), n);
231} 214}
232 215
233struct __get_user futex_or(int *v, int n) 216struct __get_user futex_or(int __user *v, int n)
234{ 217{
235 return __atomic_or(v, __futex_setup(v), n); 218 return __atomic_or((int __force *)v, __futex_setup(v), n);
236} 219}
237 220
238struct __get_user futex_andn(int *v, int n) 221struct __get_user futex_andn(int __user *v, int n)
239{ 222{
240 return __atomic_andn(v, __futex_setup(v), n); 223 return __atomic_andn((int __force *)v, __futex_setup(v), n);
241} 224}
242 225
243struct __get_user futex_xor(int *v, int n) 226struct __get_user futex_xor(int __user *v, int n)
244{ 227{
245 return __atomic_xor(v, __futex_setup(v), n); 228 return __atomic_xor((int __force *)v, __futex_setup(v), n);
246} 229}
247 230
248struct __get_user futex_cmpxchg(int *v, int o, int n) 231struct __get_user futex_cmpxchg(int __user *v, int o, int n)
249{ 232{
250 return __atomic_cmpxchg(v, __futex_setup(v), o, n); 233 return __atomic_cmpxchg((int __force *)v, __futex_setup(v), o, n);
251} 234}
252 235
253/* 236/*
@@ -260,7 +243,7 @@ struct __get_user futex_cmpxchg(int *v, int o, int n)
260 * invoked in is the context of the "_atomic_xxx()" routines called 243 * invoked in is the context of the "_atomic_xxx()" routines called
261 * by the functions in this file. 244 * by the functions in this file.
262 */ 245 */
263struct __get_user __atomic_bad_address(int *addr) 246struct __get_user __atomic_bad_address(int __user *addr)
264{ 247{
265 if (unlikely(!access_ok(VERIFY_WRITE, addr, sizeof(int)))) 248 if (unlikely(!access_ok(VERIFY_WRITE, addr, sizeof(int))))
266 panic("Bad address used for kernel atomic op: %p\n", addr); 249 panic("Bad address used for kernel atomic op: %p\n", addr);
@@ -271,7 +254,7 @@ struct __get_user __atomic_bad_address(int *addr)
271#if CHIP_HAS_CBOX_HOME_MAP() 254#if CHIP_HAS_CBOX_HOME_MAP()
272static int __init noatomichash(char *str) 255static int __init noatomichash(char *str)
273{ 256{
274 printk("noatomichash is deprecated.\n"); 257 pr_warning("noatomichash is deprecated.\n");
275 return 1; 258 return 1;
276} 259}
277__setup("noatomichash", noatomichash); 260__setup("noatomichash", noatomichash);
diff --git a/arch/tile/lib/cpumask.c b/arch/tile/lib/cpumask.c
index af745b3b2559..fdc403614d12 100644
--- a/arch/tile/lib/cpumask.c
+++ b/arch/tile/lib/cpumask.c
@@ -15,6 +15,7 @@
15#include <linux/cpumask.h> 15#include <linux/cpumask.h>
16#include <linux/ctype.h> 16#include <linux/ctype.h>
17#include <linux/errno.h> 17#include <linux/errno.h>
18#include <linux/smp.h>
18 19
19/* 20/*
20 * Allow cropping out bits beyond the end of the array. 21 * Allow cropping out bits beyond the end of the array.
diff --git a/arch/tile/lib/exports.c b/arch/tile/lib/exports.c
index af8e70e2a0ce..6bc7b52b4aa0 100644
--- a/arch/tile/lib/exports.c
+++ b/arch/tile/lib/exports.c
@@ -21,6 +21,7 @@
21EXPORT_SYMBOL(__get_user_1); 21EXPORT_SYMBOL(__get_user_1);
22EXPORT_SYMBOL(__get_user_2); 22EXPORT_SYMBOL(__get_user_2);
23EXPORT_SYMBOL(__get_user_4); 23EXPORT_SYMBOL(__get_user_4);
24EXPORT_SYMBOL(__get_user_8);
24EXPORT_SYMBOL(__put_user_1); 25EXPORT_SYMBOL(__put_user_1);
25EXPORT_SYMBOL(__put_user_2); 26EXPORT_SYMBOL(__put_user_2);
26EXPORT_SYMBOL(__put_user_4); 27EXPORT_SYMBOL(__put_user_4);
diff --git a/arch/tile/lib/memcpy_tile64.c b/arch/tile/lib/memcpy_tile64.c
index 4f0047342469..dfedea7b266b 100644
--- a/arch/tile/lib/memcpy_tile64.c
+++ b/arch/tile/lib/memcpy_tile64.c
@@ -60,8 +60,8 @@ typedef unsigned long (*memcpy_t)(void *, const void *, unsigned long);
60static void memcpy_multicache(void *dest, const void *source, 60static void memcpy_multicache(void *dest, const void *source,
61 pte_t dst_pte, pte_t src_pte, int len) 61 pte_t dst_pte, pte_t src_pte, int len)
62{ 62{
63 int idx, i; 63 int idx;
64 unsigned long flags, newsrc, newdst, endsrc; 64 unsigned long flags, newsrc, newdst;
65 pmd_t *pmdp; 65 pmd_t *pmdp;
66 pte_t *ptep; 66 pte_t *ptep;
67 int cpu = get_cpu(); 67 int cpu = get_cpu();
@@ -121,7 +121,7 @@ static void memcpy_multicache(void *dest, const void *source,
121 */ 121 */
122 sim_allow_multiple_caching(0); 122 sim_allow_multiple_caching(0);
123 local_irq_restore(flags); 123 local_irq_restore(flags);
124 put_cpu_no_resched(); 124 put_cpu();
125} 125}
126 126
127/* 127/*
diff --git a/arch/tile/lib/memmove_32.c b/arch/tile/lib/memmove_32.c
index f09d8c4523ec..fd615ae6ade7 100644
--- a/arch/tile/lib/memmove_32.c
+++ b/arch/tile/lib/memmove_32.c
@@ -42,7 +42,7 @@ void *memmove(void *dest, const void *src, size_t n)
42 in = (const uint8_t *)src; 42 in = (const uint8_t *)src;
43 out = (uint8_t *)dest; 43 out = (uint8_t *)dest;
44 stride = 1; 44 stride = 1;
45 } 45 }
46 46
47 /* Manually software-pipeline this loop. */ 47 /* Manually software-pipeline this loop. */
48 x = *in; 48 x = *in;
diff --git a/arch/tile/lib/memset_32.c b/arch/tile/lib/memset_32.c
index 8593bc82398a..bfde5d864df1 100644
--- a/arch/tile/lib/memset_32.c
+++ b/arch/tile/lib/memset_32.c
@@ -245,7 +245,8 @@ void *memset(void *s, int c, size_t n)
245 wh += CACHE_LINE_SIZE_IN_WORDS; 245 wh += CACHE_LINE_SIZE_IN_WORDS;
246 } while (--i); 246 } while (--i);
247 247
248 for (j = x * (CACHE_LINE_SIZE_IN_WORDS / 4); j != 0; j--) { 248 for (j = x * (CACHE_LINE_SIZE_IN_WORDS / 4);
249 j != 0; j--) {
249 *out32++ = v32; 250 *out32++ = v32;
250 *out32++ = v32; 251 *out32++ = v32;
251 *out32++ = v32; 252 *out32++ = v32;
diff --git a/arch/tile/lib/spinlock_common.h b/arch/tile/lib/spinlock_common.h
index 8dffebde6630..c10109809132 100644
--- a/arch/tile/lib/spinlock_common.h
+++ b/arch/tile/lib/spinlock_common.h
@@ -35,7 +35,7 @@ relax(int iterations)
35} 35}
36 36
37/* Perform bounded exponential backoff.*/ 37/* Perform bounded exponential backoff.*/
38void delay_backoff(int iterations) 38static void delay_backoff(int iterations)
39{ 39{
40 u32 exponent, loops; 40 u32 exponent, loops;
41 41
diff --git a/arch/tile/lib/uaccess.c b/arch/tile/lib/uaccess.c
index 9ae182568b77..f8d398c9ee7f 100644
--- a/arch/tile/lib/uaccess.c
+++ b/arch/tile/lib/uaccess.c
@@ -18,14 +18,15 @@
18int __range_ok(unsigned long addr, unsigned long size) 18int __range_ok(unsigned long addr, unsigned long size)
19{ 19{
20 unsigned long limit = current_thread_info()->addr_limit.seg; 20 unsigned long limit = current_thread_info()->addr_limit.seg;
21 __chk_user_ptr(addr);
22 return !((addr < limit && size <= limit - addr) || 21 return !((addr < limit && size <= limit - addr) ||
23 is_arch_mappable_range(addr, size)); 22 is_arch_mappable_range(addr, size));
24} 23}
25EXPORT_SYMBOL(__range_ok); 24EXPORT_SYMBOL(__range_ok);
26 25
26#ifdef CONFIG_DEBUG_COPY_FROM_USER
27void copy_from_user_overflow(void) 27void copy_from_user_overflow(void)
28{ 28{
29 WARN(1, "Buffer overflow detected!\n"); 29 WARN(1, "Buffer overflow detected!\n");
30} 30}
31EXPORT_SYMBOL(copy_from_user_overflow); 31EXPORT_SYMBOL(copy_from_user_overflow);
32#endif
diff --git a/arch/tile/mm/elf.c b/arch/tile/mm/elf.c
index 818c9bef060c..55e58e93bfc5 100644
--- a/arch/tile/mm/elf.c
+++ b/arch/tile/mm/elf.c
@@ -20,6 +20,7 @@
20#include <linux/elf.h> 20#include <linux/elf.h>
21#include <asm/pgtable.h> 21#include <asm/pgtable.h>
22#include <asm/pgalloc.h> 22#include <asm/pgalloc.h>
23#include <asm/sections.h>
23 24
24/* Notify a running simulator, if any, that an exec just occurred. */ 25/* Notify a running simulator, if any, that an exec just occurred. */
25static void sim_notify_exec(const char *binary_name) 26static void sim_notify_exec(const char *binary_name)
@@ -77,9 +78,8 @@ static void *vdso_page;
77/* One-entry array used for install_special_mapping. */ 78/* One-entry array used for install_special_mapping. */
78static struct page *vdso_pages[1]; 79static struct page *vdso_pages[1];
79 80
80int __init vdso_setup(void) 81static int __init vdso_setup(void)
81{ 82{
82 extern char __rt_sigreturn[], __rt_sigreturn_end[];
83 vdso_page = (void *)get_zeroed_page(GFP_ATOMIC); 83 vdso_page = (void *)get_zeroed_page(GFP_ATOMIC);
84 memcpy(vdso_page, __rt_sigreturn, __rt_sigreturn_end - __rt_sigreturn); 84 memcpy(vdso_page, __rt_sigreturn, __rt_sigreturn_end - __rt_sigreturn);
85 vdso_pages[0] = virt_to_page(vdso_page); 85 vdso_pages[0] = virt_to_page(vdso_page);
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 9b6b92f07def..0011f06b4fe2 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -39,32 +39,11 @@
39#include <asm/system.h> 39#include <asm/system.h>
40#include <asm/pgalloc.h> 40#include <asm/pgalloc.h>
41#include <asm/sections.h> 41#include <asm/sections.h>
42#include <asm/traps.h>
43#include <asm/syscalls.h>
42 44
43#include <arch/interrupts.h> 45#include <arch/interrupts.h>
44 46
45/*
46 * Unlock any spinlocks which will prevent us from getting the
47 * message out
48 */
49void bust_spinlocks(int yes)
50{
51 int loglevel_save = console_loglevel;
52
53 if (yes) {
54 oops_in_progress = 1;
55 return;
56 }
57 oops_in_progress = 0;
58 /*
59 * OK, the message is on the console. Now we call printk()
60 * without oops_in_progress set so that printk will give klogd
61 * a poke. Hold onto your hats...
62 */
63 console_loglevel = 15; /* NMI oopser may have shut the console up */
64 printk(" ");
65 console_loglevel = loglevel_save;
66}
67
68static noinline void force_sig_info_fault(int si_signo, int si_code, 47static noinline void force_sig_info_fault(int si_signo, int si_code,
69 unsigned long address, int fault_num, struct task_struct *tsk) 48 unsigned long address, int fault_num, struct task_struct *tsk)
70{ 49{
@@ -301,10 +280,10 @@ static int handle_page_fault(struct pt_regs *regs,
301 */ 280 */
302 stack_offset = stack_pointer & (THREAD_SIZE-1); 281 stack_offset = stack_pointer & (THREAD_SIZE-1);
303 if (stack_offset < THREAD_SIZE / 8) { 282 if (stack_offset < THREAD_SIZE / 8) {
304 printk(KERN_ALERT "Potential stack overrun: sp %#lx\n", 283 pr_alert("Potential stack overrun: sp %#lx\n",
305 stack_pointer); 284 stack_pointer);
306 show_regs(regs); 285 show_regs(regs);
307 printk(KERN_ALERT "Killing current process %d/%s\n", 286 pr_alert("Killing current process %d/%s\n",
308 tsk->pid, tsk->comm); 287 tsk->pid, tsk->comm);
309 do_group_exit(SIGKILL); 288 do_group_exit(SIGKILL);
310 } 289 }
@@ -422,7 +401,7 @@ good_area:
422 } else if (write) { 401 } else if (write) {
423#ifdef TEST_VERIFY_AREA 402#ifdef TEST_VERIFY_AREA
424 if (!is_page_fault && regs->cs == KERNEL_CS) 403 if (!is_page_fault && regs->cs == KERNEL_CS)
425 printk("WP fault at "REGFMT"\n", regs->eip); 404 pr_err("WP fault at "REGFMT"\n", regs->eip);
426#endif 405#endif
427 if (!(vma->vm_flags & VM_WRITE)) 406 if (!(vma->vm_flags & VM_WRITE))
428 goto bad_area; 407 goto bad_area;
@@ -450,6 +429,7 @@ good_area:
450 else 429 else
451 tsk->min_flt++; 430 tsk->min_flt++;
452 431
432#if CHIP_HAS_TILE_DMA() || CHIP_HAS_SN_PROC()
453 /* 433 /*
454 * If this was an asynchronous fault, 434 * If this was an asynchronous fault,
455 * restart the appropriate engine. 435 * restart the appropriate engine.
@@ -472,6 +452,7 @@ good_area:
472 break; 452 break;
473#endif 453#endif
474 } 454 }
455#endif
475 456
476 up_read(&mm->mmap_sem); 457 up_read(&mm->mmap_sem);
477 return 1; 458 return 1;
@@ -514,17 +495,17 @@ no_context:
514 pte_t *pte = lookup_address(address); 495 pte_t *pte = lookup_address(address);
515 496
516 if (pte && pte_present(*pte) && !pte_exec_kernel(*pte)) 497 if (pte && pte_present(*pte) && !pte_exec_kernel(*pte))
517 printk(KERN_CRIT "kernel tried to execute" 498 pr_crit("kernel tried to execute"
518 " non-executable page - exploit attempt?" 499 " non-executable page - exploit attempt?"
519 " (uid: %d)\n", current->uid); 500 " (uid: %d)\n", current->uid);
520 } 501 }
521#endif 502#endif
522 if (address < PAGE_SIZE) 503 if (address < PAGE_SIZE)
523 printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference\n"); 504 pr_alert("Unable to handle kernel NULL pointer dereference\n");
524 else 505 else
525 printk(KERN_ALERT "Unable to handle kernel paging request\n"); 506 pr_alert("Unable to handle kernel paging request\n");
526 printk(" at virtual address "REGFMT", pc "REGFMT"\n", 507 pr_alert(" at virtual address "REGFMT", pc "REGFMT"\n",
527 address, regs->pc); 508 address, regs->pc);
528 509
529 show_regs(regs); 510 show_regs(regs);
530 511
@@ -555,7 +536,7 @@ out_of_memory:
555 down_read(&mm->mmap_sem); 536 down_read(&mm->mmap_sem);
556 goto survive; 537 goto survive;
557 } 538 }
558 printk("VM: killing process %s\n", tsk->comm); 539 pr_alert("VM: killing process %s\n", tsk->comm);
559 if (!is_kernel_mode) 540 if (!is_kernel_mode)
560 do_group_exit(SIGKILL); 541 do_group_exit(SIGKILL);
561 goto no_context; 542 goto no_context;
@@ -573,31 +554,12 @@ do_sigbus:
573 554
574#ifndef __tilegx__ 555#ifndef __tilegx__
575 556
576extern char sys_cmpxchg[], __sys_cmpxchg_end[];
577extern char __sys_cmpxchg_grab_lock[];
578extern char __start_atomic_asm_code[], __end_atomic_asm_code[];
579
580/*
581 * We return this structure in registers to avoid having to write
582 * additional save/restore code in the intvec.S caller.
583 */
584struct intvec_state {
585 void *handler;
586 unsigned long vecnum;
587 unsigned long fault_num;
588 unsigned long info;
589 unsigned long retval;
590};
591
592/* We must release ICS before panicking or we won't get anywhere. */ 557/* We must release ICS before panicking or we won't get anywhere. */
593#define ics_panic(fmt, ...) do { \ 558#define ics_panic(fmt, ...) do { \
594 __insn_mtspr(SPR_INTERRUPT_CRITICAL_SECTION, 0); \ 559 __insn_mtspr(SPR_INTERRUPT_CRITICAL_SECTION, 0); \
595 panic(fmt, __VA_ARGS__); \ 560 panic(fmt, __VA_ARGS__); \
596} while (0) 561} while (0)
597 562
598void do_page_fault(struct pt_regs *regs, int fault_num,
599 unsigned long address, unsigned long write);
600
601/* 563/*
602 * When we take an ITLB or DTLB fault or access violation in the 564 * When we take an ITLB or DTLB fault or access violation in the
603 * supervisor while the critical section bit is set, the hypervisor is 565 * supervisor while the critical section bit is set, the hypervisor is
diff --git a/arch/tile/mm/highmem.c b/arch/tile/mm/highmem.c
index 1fcecc5b9e03..ff1cdff5114d 100644
--- a/arch/tile/mm/highmem.c
+++ b/arch/tile/mm/highmem.c
@@ -121,7 +121,7 @@ static struct list_head amp_list = LIST_HEAD_INIT(amp_list);
121struct kmap_amps { 121struct kmap_amps {
122 struct atomic_mapped_page per_type[KM_TYPE_NR]; 122 struct atomic_mapped_page per_type[KM_TYPE_NR];
123}; 123};
124DEFINE_PER_CPU(struct kmap_amps, amps); 124static DEFINE_PER_CPU(struct kmap_amps, amps);
125 125
126/* 126/*
127 * Add a page and va, on this cpu, to the list of kmap_atomic pages, 127 * Add a page and va, on this cpu, to the list of kmap_atomic pages,
diff --git a/arch/tile/mm/homecache.c b/arch/tile/mm/homecache.c
index 52feb77133ce..97c478e7be27 100644
--- a/arch/tile/mm/homecache.c
+++ b/arch/tile/mm/homecache.c
@@ -46,7 +46,7 @@
46 * locally from a remote home. There's no point in using it if we 46 * locally from a remote home. There's no point in using it if we
47 * don't have coherent local caching, though. 47 * don't have coherent local caching, though.
48 */ 48 */
49int __write_once noallocl2; 49static int __write_once noallocl2;
50static int __init set_noallocl2(char *str) 50static int __init set_noallocl2(char *str)
51{ 51{
52 noallocl2 = 1; 52 noallocl2 = 1;
@@ -60,15 +60,11 @@ early_param("noallocl2", set_noallocl2);
60 60
61#endif 61#endif
62 62
63
64
65/* Provide no-op versions of these routines to keep flush_remote() cleaner. */ 63/* Provide no-op versions of these routines to keep flush_remote() cleaner. */
66#define mark_caches_evicted_start() 0 64#define mark_caches_evicted_start() 0
67#define mark_caches_evicted_finish(mask, timestamp) do {} while (0) 65#define mark_caches_evicted_finish(mask, timestamp) do {} while (0)
68 66
69 67
70
71
72/* 68/*
73 * Update the irq_stat for cpus that we are going to interrupt 69 * Update the irq_stat for cpus that we are going to interrupt
74 * with TLB or cache flushes. Also handle removing dataplane cpus 70 * with TLB or cache flushes. Also handle removing dataplane cpus
@@ -171,20 +167,12 @@ void flush_remote(unsigned long cache_pfn, unsigned long cache_control,
171 cpumask_scnprintf(cache_buf, sizeof(cache_buf), &cache_cpumask_copy); 167 cpumask_scnprintf(cache_buf, sizeof(cache_buf), &cache_cpumask_copy);
172 cpumask_scnprintf(tlb_buf, sizeof(tlb_buf), &tlb_cpumask_copy); 168 cpumask_scnprintf(tlb_buf, sizeof(tlb_buf), &tlb_cpumask_copy);
173 169
174 printk("hv_flush_remote(%#llx, %#lx, %p [%s]," 170 pr_err("hv_flush_remote(%#llx, %#lx, %p [%s],"
175 " %#lx, %#lx, %#lx, %p [%s], %p, %d) = %d\n", 171 " %#lx, %#lx, %#lx, %p [%s], %p, %d) = %d\n",
176 cache_pa, cache_control, cache_cpumask, cache_buf, 172 cache_pa, cache_control, cache_cpumask, cache_buf,
177 (unsigned long)tlb_va, tlb_length, tlb_pgsize, 173 (unsigned long)tlb_va, tlb_length, tlb_pgsize,
178 tlb_cpumask, tlb_buf, 174 tlb_cpumask, tlb_buf,
179 asids, asidcount, rc); 175 asids, asidcount, rc);
180 if (asidcount > 0) {
181 int i;
182 printk(" asids:");
183 for (i = 0; i < asidcount; ++i)
184 printk(" %d,%d,%d",
185 asids[i].x, asids[i].y, asids[i].asid);
186 printk("\n");
187 }
188 panic("Unsafe to continue."); 176 panic("Unsafe to continue.");
189} 177}
190 178
@@ -293,7 +281,7 @@ pte_t pte_set_home(pte_t pte, int home)
293 */ 281 */
294 if (hv_pte_get_nc(pte) && home != PAGE_HOME_IMMUTABLE) { 282 if (hv_pte_get_nc(pte) && home != PAGE_HOME_IMMUTABLE) {
295 pte = hv_pte_clear_nc(pte); 283 pte = hv_pte_clear_nc(pte);
296 printk("non-immutable page incoherently referenced: %#llx\n", 284 pr_err("non-immutable page incoherently referenced: %#llx\n",
297 pte.val); 285 pte.val);
298 } 286 }
299 287
diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
index c38570f8f0d0..24688b697a8d 100644
--- a/arch/tile/mm/hugetlbpage.c
+++ b/arch/tile/mm/hugetlbpage.c
@@ -332,7 +332,7 @@ static __init int setup_hugepagesz(char *opt)
332 } else if (ps == PUD_SIZE) { 332 } else if (ps == PUD_SIZE) {
333 hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT); 333 hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
334 } else { 334 } else {
335 printk(KERN_ERR "hugepagesz: Unsupported page size %lu M\n", 335 pr_err("hugepagesz: Unsupported page size %lu M\n",
336 ps >> 20); 336 ps >> 20);
337 return 0; 337 return 0;
338 } 338 }
diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c
index 125ac53b60fc..d89c9eacd162 100644
--- a/arch/tile/mm/init.c
+++ b/arch/tile/mm/init.c
@@ -67,7 +67,9 @@
67 67
68#define clear_pgd(pmdptr) (*(pmdptr) = hv_pte(0)) 68#define clear_pgd(pmdptr) (*(pmdptr) = hv_pte(0))
69 69
70#ifndef __tilegx__
70unsigned long VMALLOC_RESERVE = CONFIG_VMALLOC_RESERVE; 71unsigned long VMALLOC_RESERVE = CONFIG_VMALLOC_RESERVE;
72#endif
71 73
72DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); 74DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
73 75
@@ -282,9 +284,9 @@ static pgprot_t __init init_pgprot(ulong address)
282 /* 284 /*
283 * Everything else that isn't data or bss is heap, so mark it 285 * Everything else that isn't data or bss is heap, so mark it
284 * with the initial heap home (hash-for-home, or this cpu). This 286 * with the initial heap home (hash-for-home, or this cpu). This
285 * includes any addresses after the loaded image; any address before 287 * includes any addresses after the loaded image and any address before
286 * _einittext (since we already captured the case of text before 288 * _einitdata, since we already captured the case of text before
287 * _sinittext); and any init-data pages. 289 * _sinittext, and __pa(einittext) is approximately __pa(sinitdata).
288 * 290 *
289 * All the LOWMEM pages that we mark this way will get their 291 * All the LOWMEM pages that we mark this way will get their
290 * struct page homecache properly marked later, in set_page_homes(). 292 * struct page homecache properly marked later, in set_page_homes().
@@ -292,9 +294,7 @@ static pgprot_t __init init_pgprot(ulong address)
292 * homes, but with a zero free_time we don't have to actually 294 * homes, but with a zero free_time we don't have to actually
293 * do a flush action the first time we use them, either. 295 * do a flush action the first time we use them, either.
294 */ 296 */
295 if (address >= (ulong) _end || address < (ulong) _sdata || 297 if (address >= (ulong) _end || address < (ulong) _einitdata)
296 (address >= (ulong) _sinitdata &&
297 address < (ulong) _einitdata))
298 return construct_pgprot(PAGE_KERNEL, initial_heap_home()); 298 return construct_pgprot(PAGE_KERNEL, initial_heap_home());
299 299
300#if CHIP_HAS_CBOX_HOME_MAP() 300#if CHIP_HAS_CBOX_HOME_MAP()
@@ -304,35 +304,38 @@ static pgprot_t __init init_pgprot(ulong address)
304#endif 304#endif
305 305
306 /* 306 /*
307 * Make the w1data homed like heap to start with, to avoid
308 * making it part of the page-striped data area when we're just
309 * going to convert it to read-only soon anyway.
310 */
311 if (address >= (ulong)__w1data_begin && address < (ulong)__w1data_end)
312 return construct_pgprot(PAGE_KERNEL, initial_heap_home());
313
314 /*
307 * Otherwise we just hand out consecutive cpus. To avoid 315 * Otherwise we just hand out consecutive cpus. To avoid
308 * requiring this function to hold state, we just walk forward from 316 * requiring this function to hold state, we just walk forward from
309 * _sdata by PAGE_SIZE, skipping the readonly and init data, to reach 317 * _sdata by PAGE_SIZE, skipping the readonly and init data, to reach
310 * the requested address, while walking cpu home around kdata_mask. 318 * the requested address, while walking cpu home around kdata_mask.
311 * This is typically no more than a dozen or so iterations. 319 * This is typically no more than a dozen or so iterations.
312 */ 320 */
313 BUG_ON(_einitdata != __bss_start); 321 page = (((ulong)__w1data_end) + PAGE_SIZE - 1) & PAGE_MASK;
314 for (page = (ulong)_sdata, cpu = NR_CPUS; ; ) { 322 BUG_ON(address < page || address >= (ulong)_end);
315 cpu = cpumask_next(cpu, &kdata_mask); 323 cpu = cpumask_first(&kdata_mask);
316 if (cpu == NR_CPUS) 324 for (; page < address; page += PAGE_SIZE) {
317 cpu = cpumask_first(&kdata_mask); 325 if (page >= (ulong)&init_thread_union &&
318 if (page >= address) 326 page < (ulong)&init_thread_union + THREAD_SIZE)
319 break; 327 continue;
320 page += PAGE_SIZE;
321 if (page == (ulong)__start_rodata)
322 page = (ulong)__end_rodata;
323 if (page == (ulong)&init_thread_union)
324 page += THREAD_SIZE;
325 if (page == (ulong)_sinitdata)
326 page = (ulong)_einitdata;
327 if (page == (ulong)empty_zero_page) 328 if (page == (ulong)empty_zero_page)
328 page += PAGE_SIZE; 329 continue;
329#ifndef __tilegx__ 330#ifndef __tilegx__
330#if !ATOMIC_LOCKS_FOUND_VIA_TABLE() 331#if !ATOMIC_LOCKS_FOUND_VIA_TABLE()
331 if (page == (ulong)atomic_locks) 332 if (page == (ulong)atomic_locks)
332 page += PAGE_SIZE; 333 continue;
333#endif 334#endif
334#endif 335#endif
335 336 cpu = cpumask_next(cpu, &kdata_mask);
337 if (cpu == NR_CPUS)
338 cpu = cpumask_first(&kdata_mask);
336 } 339 }
337 return construct_pgprot(PAGE_KERNEL, cpu); 340 return construct_pgprot(PAGE_KERNEL, cpu);
338} 341}
@@ -362,7 +365,7 @@ static int __init setup_ktext(char *str)
362 /* If you have a leading "nocache", turn off ktext caching */ 365 /* If you have a leading "nocache", turn off ktext caching */
363 if (strncmp(str, "nocache", 7) == 0) { 366 if (strncmp(str, "nocache", 7) == 0) {
364 ktext_nocache = 1; 367 ktext_nocache = 1;
365 printk("ktext: disabling local caching of kernel text\n"); 368 pr_info("ktext: disabling local caching of kernel text\n");
366 str += 7; 369 str += 7;
367 if (*str == ',') 370 if (*str == ',')
368 ++str; 371 ++str;
@@ -374,20 +377,20 @@ static int __init setup_ktext(char *str)
374 377
375 /* Default setting on Tile64: use a huge page */ 378 /* Default setting on Tile64: use a huge page */
376 if (strcmp(str, "huge") == 0) 379 if (strcmp(str, "huge") == 0)
377 printk("ktext: using one huge locally cached page\n"); 380 pr_info("ktext: using one huge locally cached page\n");
378 381
379 /* Pay TLB cost but get no cache benefit: cache small pages locally */ 382 /* Pay TLB cost but get no cache benefit: cache small pages locally */
380 else if (strcmp(str, "local") == 0) { 383 else if (strcmp(str, "local") == 0) {
381 ktext_small = 1; 384 ktext_small = 1;
382 ktext_local = 1; 385 ktext_local = 1;
383 printk("ktext: using small pages with local caching\n"); 386 pr_info("ktext: using small pages with local caching\n");
384 } 387 }
385 388
386 /* Neighborhood cache ktext pages on all cpus. */ 389 /* Neighborhood cache ktext pages on all cpus. */
387 else if (strcmp(str, "all") == 0) { 390 else if (strcmp(str, "all") == 0) {
388 ktext_small = 1; 391 ktext_small = 1;
389 ktext_all = 1; 392 ktext_all = 1;
390 printk("ktext: using maximal caching neighborhood\n"); 393 pr_info("ktext: using maximal caching neighborhood\n");
391 } 394 }
392 395
393 396
@@ -397,10 +400,10 @@ static int __init setup_ktext(char *str)
397 cpulist_scnprintf(buf, sizeof(buf), &ktext_mask); 400 cpulist_scnprintf(buf, sizeof(buf), &ktext_mask);
398 if (cpumask_weight(&ktext_mask) > 1) { 401 if (cpumask_weight(&ktext_mask) > 1) {
399 ktext_small = 1; 402 ktext_small = 1;
400 printk("ktext: using caching neighborhood %s " 403 pr_info("ktext: using caching neighborhood %s "
401 "with small pages\n", buf); 404 "with small pages\n", buf);
402 } else { 405 } else {
403 printk("ktext: caching on cpu %s with one huge page\n", 406 pr_info("ktext: caching on cpu %s with one huge page\n",
404 buf); 407 buf);
405 } 408 }
406 } 409 }
@@ -470,19 +473,19 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
470 473
471#if CHIP_HAS_CBOX_HOME_MAP() 474#if CHIP_HAS_CBOX_HOME_MAP()
472 if (ktext_arg_seen && ktext_hash) { 475 if (ktext_arg_seen && ktext_hash) {
473 printk("warning: \"ktext\" boot argument ignored" 476 pr_warning("warning: \"ktext\" boot argument ignored"
474 " if \"kcache_hash\" sets up text hash-for-home\n"); 477 " if \"kcache_hash\" sets up text hash-for-home\n");
475 ktext_small = 0; 478 ktext_small = 0;
476 } 479 }
477 480
478 if (kdata_arg_seen && kdata_hash) { 481 if (kdata_arg_seen && kdata_hash) {
479 printk("warning: \"kdata\" boot argument ignored" 482 pr_warning("warning: \"kdata\" boot argument ignored"
480 " if \"kcache_hash\" sets up data hash-for-home\n"); 483 " if \"kcache_hash\" sets up data hash-for-home\n");
481 } 484 }
482 485
483 if (kdata_huge && !hash_default) { 486 if (kdata_huge && !hash_default) {
484 printk("warning: disabling \"kdata=huge\"; requires" 487 pr_warning("warning: disabling \"kdata=huge\"; requires"
485 " kcache_hash=all or =allbutstack\n"); 488 " kcache_hash=all or =allbutstack\n");
486 kdata_huge = 0; 489 kdata_huge = 0;
487 } 490 }
488#endif 491#endif
@@ -556,11 +559,11 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
556 if (!cpumask_empty(&bad)) { 559 if (!cpumask_empty(&bad)) {
557 char buf[NR_CPUS * 5]; 560 char buf[NR_CPUS * 5];
558 cpulist_scnprintf(buf, sizeof(buf), &bad); 561 cpulist_scnprintf(buf, sizeof(buf), &bad);
559 printk("ktext: not using unavailable cpus %s\n", buf); 562 pr_info("ktext: not using unavailable cpus %s\n", buf);
560 } 563 }
561 if (cpumask_empty(&ktext_mask)) { 564 if (cpumask_empty(&ktext_mask)) {
562 printk("ktext: no valid cpus; caching on %d.\n", 565 pr_warning("ktext: no valid cpus; caching on %d.\n",
563 smp_processor_id()); 566 smp_processor_id());
564 cpumask_copy(&ktext_mask, 567 cpumask_copy(&ktext_mask,
565 cpumask_of(smp_processor_id())); 568 cpumask_of(smp_processor_id()));
566 } 569 }
@@ -737,17 +740,18 @@ static void __init set_non_bootmem_pages_init(void)
737 for_each_zone(z) { 740 for_each_zone(z) {
738 unsigned long start, end; 741 unsigned long start, end;
739 int nid = z->zone_pgdat->node_id; 742 int nid = z->zone_pgdat->node_id;
743 int idx = zone_idx(z);
740 744
741 start = z->zone_start_pfn; 745 start = z->zone_start_pfn;
742 if (start == 0) 746 if (start == 0)
743 continue; /* bootmem */ 747 continue; /* bootmem */
744 end = start + z->spanned_pages; 748 end = start + z->spanned_pages;
745 if (zone_idx(z) == ZONE_NORMAL) { 749 if (idx == ZONE_NORMAL) {
746 BUG_ON(start != node_start_pfn[nid]); 750 BUG_ON(start != node_start_pfn[nid]);
747 start = node_free_pfn[nid]; 751 start = node_free_pfn[nid];
748 } 752 }
749#ifdef CONFIG_HIGHMEM 753#ifdef CONFIG_HIGHMEM
750 if (zone_idx(z) == ZONE_HIGHMEM) 754 if (idx == ZONE_HIGHMEM)
751 totalhigh_pages += z->spanned_pages; 755 totalhigh_pages += z->spanned_pages;
752#endif 756#endif
753 if (kdata_huge) { 757 if (kdata_huge) {
@@ -841,9 +845,9 @@ void __init mem_init(void)
841#ifdef CONFIG_HIGHMEM 845#ifdef CONFIG_HIGHMEM
842 /* check that fixmap and pkmap do not overlap */ 846 /* check that fixmap and pkmap do not overlap */
843 if (PKMAP_ADDR(LAST_PKMAP-1) >= FIXADDR_START) { 847 if (PKMAP_ADDR(LAST_PKMAP-1) >= FIXADDR_START) {
844 printk(KERN_ERR "fixmap and kmap areas overlap" 848 pr_err("fixmap and kmap areas overlap"
845 " - this will crash\n"); 849 " - this will crash\n");
846 printk(KERN_ERR "pkstart: %lxh pkend: %lxh fixstart %lxh\n", 850 pr_err("pkstart: %lxh pkend: %lxh fixstart %lxh\n",
847 PKMAP_BASE, PKMAP_ADDR(LAST_PKMAP-1), 851 PKMAP_BASE, PKMAP_ADDR(LAST_PKMAP-1),
848 FIXADDR_START); 852 FIXADDR_START);
849 BUG(); 853 BUG();
@@ -863,7 +867,7 @@ void __init mem_init(void)
863 initsize = (unsigned long)&_einittext - (unsigned long)&_sinittext; 867 initsize = (unsigned long)&_einittext - (unsigned long)&_sinittext;
864 initsize += (unsigned long)&_einitdata - (unsigned long)&_sinitdata; 868 initsize += (unsigned long)&_einitdata - (unsigned long)&_sinitdata;
865 869
866 printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init, %ldk highmem)\n", 870 pr_info("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init, %ldk highmem)\n",
867 (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), 871 (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
868 num_physpages << (PAGE_SHIFT-10), 872 num_physpages << (PAGE_SHIFT-10),
869 codesize >> 10, 873 codesize >> 10,
@@ -968,7 +972,6 @@ static void mark_w1data_ro(void)
968 BUG_ON((addr & (PAGE_SIZE-1)) != 0); 972 BUG_ON((addr & (PAGE_SIZE-1)) != 0);
969 for (; addr <= (unsigned long)__w1data_end - 1; addr += PAGE_SIZE) { 973 for (; addr <= (unsigned long)__w1data_end - 1; addr += PAGE_SIZE) {
970 unsigned long pfn = kaddr_to_pfn((void *)addr); 974 unsigned long pfn = kaddr_to_pfn((void *)addr);
971 struct page *page = pfn_to_page(pfn);
972 pte_t *ptep = virt_to_pte(NULL, addr); 975 pte_t *ptep = virt_to_pte(NULL, addr);
973 BUG_ON(pte_huge(*ptep)); /* not relevant for kdata_huge */ 976 BUG_ON(pte_huge(*ptep)); /* not relevant for kdata_huge */
974 set_pte_at(&init_mm, addr, ptep, pfn_pte(pfn, PAGE_KERNEL_RO)); 977 set_pte_at(&init_mm, addr, ptep, pfn_pte(pfn, PAGE_KERNEL_RO));
@@ -986,7 +989,7 @@ static long __write_once initfree = 1;
986static int __init set_initfree(char *str) 989static int __init set_initfree(char *str)
987{ 990{
988 strict_strtol(str, 0, &initfree); 991 strict_strtol(str, 0, &initfree);
989 printk("initfree: %s free init pages\n", initfree ? "will" : "won't"); 992 pr_info("initfree: %s free init pages\n", initfree ? "will" : "won't");
990 return 1; 993 return 1;
991} 994}
992__setup("initfree=", set_initfree); 995__setup("initfree=", set_initfree);
@@ -996,8 +999,8 @@ static void free_init_pages(char *what, unsigned long begin, unsigned long end)
996 unsigned long addr = (unsigned long) begin; 999 unsigned long addr = (unsigned long) begin;
997 1000
998 if (kdata_huge && !initfree) { 1001 if (kdata_huge && !initfree) {
999 printk("Warning: ignoring initfree=0:" 1002 pr_warning("Warning: ignoring initfree=0:"
1000 " incompatible with kdata=huge\n"); 1003 " incompatible with kdata=huge\n");
1001 initfree = 1; 1004 initfree = 1;
1002 } 1005 }
1003 end = (end + PAGE_SIZE - 1) & PAGE_MASK; 1006 end = (end + PAGE_SIZE - 1) & PAGE_MASK;
@@ -1033,7 +1036,7 @@ static void free_init_pages(char *what, unsigned long begin, unsigned long end)
1033 free_page(addr); 1036 free_page(addr);
1034 totalram_pages++; 1037 totalram_pages++;
1035 } 1038 }
1036 printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); 1039 pr_info("Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
1037} 1040}
1038 1041
1039void free_initmem(void) 1042void free_initmem(void)
diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c
index 289e729bbd76..28c23140c947 100644
--- a/arch/tile/mm/pgtable.c
+++ b/arch/tile/mm/pgtable.c
@@ -46,7 +46,7 @@ void show_mem(void)
46{ 46{
47 struct zone *zone; 47 struct zone *zone;
48 48
49 printk("Active:%lu inactive:%lu dirty:%lu writeback:%lu unstable:%lu" 49 pr_err("Active:%lu inactive:%lu dirty:%lu writeback:%lu unstable:%lu"
50 " free:%lu\n slab:%lu mapped:%lu pagetables:%lu bounce:%lu" 50 " free:%lu\n slab:%lu mapped:%lu pagetables:%lu bounce:%lu"
51 " pagecache:%lu swap:%lu\n", 51 " pagecache:%lu swap:%lu\n",
52 (global_page_state(NR_ACTIVE_ANON) + 52 (global_page_state(NR_ACTIVE_ANON) +
@@ -71,7 +71,6 @@ void show_mem(void)
71 if (!populated_zone(zone)) 71 if (!populated_zone(zone))
72 continue; 72 continue;
73 73
74 printk("Node %d %7s: ", zone_to_nid(zone), zone->name);
75 spin_lock_irqsave(&zone->lock, flags); 74 spin_lock_irqsave(&zone->lock, flags);
76 for (order = 0; order < MAX_ORDER; order++) { 75 for (order = 0; order < MAX_ORDER; order++) {
77 int nr = zone->free_area[order].nr_free; 76 int nr = zone->free_area[order].nr_free;
@@ -80,7 +79,8 @@ void show_mem(void)
80 largest_order = order; 79 largest_order = order;
81 } 80 }
82 spin_unlock_irqrestore(&zone->lock, flags); 81 spin_unlock_irqrestore(&zone->lock, flags);
83 printk("%lukB (largest %luKb)\n", 82 pr_err("Node %d %7s: %lukB (largest %luKb)\n",
83 zone_to_nid(zone), zone->name,
84 K(total), largest_order ? K(1UL) << largest_order : 0); 84 K(total), largest_order ? K(1UL) << largest_order : 0);
85 } 85 }
86} 86}
@@ -123,42 +123,6 @@ static void set_pte_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)
123 local_flush_tlb_page(NULL, vaddr, PAGE_SIZE); 123 local_flush_tlb_page(NULL, vaddr, PAGE_SIZE);
124} 124}
125 125
126/*
127 * Associate a huge virtual page frame with a given physical page frame
128 * and protection flags for that frame. pfn is for the base of the page,
129 * vaddr is what the page gets mapped to - both must be properly aligned.
130 * The pmd must already be instantiated.
131 */
132void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)
133{
134 pgd_t *pgd;
135 pud_t *pud;
136 pmd_t *pmd;
137
138 if (vaddr & (PMD_SIZE-1)) { /* vaddr is misaligned */
139 printk(KERN_WARNING "set_pmd_pfn: vaddr misaligned\n");
140 return; /* BUG(); */
141 }
142 if (pfn & (PTRS_PER_PTE-1)) { /* pfn is misaligned */
143 printk(KERN_WARNING "set_pmd_pfn: pfn misaligned\n");
144 return; /* BUG(); */
145 }
146 pgd = swapper_pg_dir + pgd_index(vaddr);
147 if (pgd_none(*pgd)) {
148 printk(KERN_WARNING "set_pmd_pfn: pgd_none\n");
149 return; /* BUG(); */
150 }
151 pud = pud_offset(pgd, vaddr);
152 pmd = pmd_offset(pud, vaddr);
153 set_pmd(pmd, ptfn_pmd(HV_PFN_TO_PTFN(pfn), flags));
154 /*
155 * It's enough to flush this one mapping.
156 * We flush both small and huge TSBs to be sure.
157 */
158 local_flush_tlb_page(NULL, vaddr, HPAGE_SIZE);
159 local_flush_tlb_pages(NULL, vaddr, PAGE_SIZE, HPAGE_SIZE);
160}
161
162void __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t flags) 126void __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t flags)
163{ 127{
164 unsigned long address = __fix_to_virt(idx); 128 unsigned long address = __fix_to_virt(idx);
@@ -257,7 +221,7 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
257 221
258struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) 222struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
259{ 223{
260 int flags = GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO|__GFP_COMP; 224 gfp_t flags = GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO|__GFP_COMP;
261 struct page *p; 225 struct page *p;
262 226
263#ifdef CONFIG_HIGHPTE 227#ifdef CONFIG_HIGHPTE
@@ -550,7 +514,7 @@ void iounmap(volatile void __iomem *addr_in)
550 read_unlock(&vmlist_lock); 514 read_unlock(&vmlist_lock);
551 515
552 if (!p) { 516 if (!p) {
553 printk("iounmap: bad address %p\n", addr); 517 pr_err("iounmap: bad address %p\n", addr);
554 dump_stack(); 518 dump_stack();
555 return; 519 return;
556 } 520 }
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