diff options
Diffstat (limited to 'arch')
150 files changed, 917 insertions, 2375 deletions
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index 9a3334ae282e..62619f25132f 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -178,25 +178,18 @@ SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, unsigned long, fd, unsigned long, off) { - struct file *file = NULL; - unsigned long ret = -EBADF; + unsigned long ret = -EINVAL; #if 0 if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED)) printk("%s: unimplemented OSF mmap flags %04lx\n", current->comm, flags); #endif - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - down_write(¤t->mm->mmap_sem); - ret = do_mmap(file, addr, len, prot, flags, off); - up_write(¤t->mm->mmap_sem); - if (file) - fput(file); + if ((off + PAGE_ALIGN(len)) < off) + goto out; + if (off & ~PAGE_MASK) + goto out; + ret = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); out: return ret; } diff --git a/arch/arm/include/asm/mman.h b/arch/arm/include/asm/mman.h index 8eebf89f5ab1..41f99c573b93 100644 --- a/arch/arm/include/asm/mman.h +++ b/arch/arm/include/asm/mman.h @@ -1 +1,4 @@ #include <asm-generic/mman.h> + +#define arch_mmap_check(addr, len, flags) \ + (((flags) & MAP_FIXED && (addr) < FIRST_USER_ADDRESS) ? -EINVAL : 0) diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index fafce1b5c69f..4f07168cf33d 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -172,7 +172,7 @@ /* 160 */ CALL(sys_sched_get_priority_min) CALL(sys_sched_rr_get_interval) CALL(sys_nanosleep) - CALL(sys_arm_mremap) + CALL(sys_mremap) CALL(sys_setresuid16) /* 165 */ CALL(sys_getresuid16) CALL(sys_ni_syscall) /* vm86 */ diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index f0fe95b7085d..2c1db77d7848 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -416,12 +416,12 @@ sys_mmap2: tst r5, #PGOFF_MASK moveq r5, r5, lsr #PAGE_SHIFT - 12 streq r5, [sp, #4] - beq do_mmap2 + beq sys_mmap_pgoff mov r0, #-EINVAL mov pc, lr #else str r5, [sp, #4] - b do_mmap2 + b sys_mmap_pgoff #endif ENDPROC(sys_mmap2) diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c index 78ecaac65206..ae4027bd01bd 100644 --- a/arch/arm/kernel/sys_arm.c +++ b/arch/arm/kernel/sys_arm.c @@ -28,41 +28,6 @@ #include <linux/ipc.h> #include <linux/uaccess.h> -extern unsigned long do_mremap(unsigned long addr, unsigned long old_len, - unsigned long new_len, unsigned long flags, - unsigned long new_addr); - -/* common code for old and new mmaps */ -inline long do_mmap2( - unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EINVAL; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - if (flags & MAP_FIXED && addr < FIRST_USER_ADDRESS) - goto out; - - error = -EBADF; - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - struct mmap_arg_struct { unsigned long addr; unsigned long len; @@ -84,29 +49,11 @@ asmlinkage int old_mmap(struct mmap_arg_struct __user *arg) if (a.offset & ~PAGE_MASK) goto out; - error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); + error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); out: return error; } -asmlinkage unsigned long -sys_arm_mremap(unsigned long addr, unsigned long old_len, - unsigned long new_len, unsigned long flags, - unsigned long new_addr) -{ - unsigned long ret = -EINVAL; - - if (flags & MREMAP_FIXED && new_addr < FIRST_USER_ADDRESS) - goto out; - - down_write(¤t->mm->mmap_sem); - ret = do_mremap(addr, old_len, new_len, flags, new_addr); - up_write(¤t->mm->mmap_sem); - -out: - return ret; -} - /* * Perform the select(nd, in, out, ex, tv) and mmap() system * calls. diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index 0976049c7b3b..36e4fb4fada8 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -789,7 +789,14 @@ static struct davinci_id dm646x_ids[] = { .part_no = 0xb770, .manufacturer = 0x017, .cpu_id = DAVINCI_CPU_ID_DM6467, - .name = "dm6467", + .name = "dm6467_rev1.x", + }, + { + .variant = 0x1, + .part_no = 0xb770, + .manufacturer = 0x017, + .cpu_id = DAVINCI_CPU_ID_DM6467, + .name = "dm6467_rev3.x", }, }; diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c index aec7f4214b14..86a87327ad42 100644 --- a/arch/arm/mach-pxa/em-x270.c +++ b/arch/arm/mach-pxa/em-x270.c @@ -497,16 +497,15 @@ static int em_x270_usb_hub_init(void) goto err_free_vbus_gpio; /* USB Hub power-on and reset */ - gpio_direction_output(usb_hub_reset, 0); + gpio_direction_output(usb_hub_reset, 1); + gpio_direction_output(GPIO9_USB_VBUS_EN, 0); regulator_enable(em_x270_usb_ldo); - gpio_set_value(usb_hub_reset, 1); gpio_set_value(usb_hub_reset, 0); + gpio_set_value(usb_hub_reset, 1); regulator_disable(em_x270_usb_ldo); regulator_enable(em_x270_usb_ldo); - gpio_set_value(usb_hub_reset, 1); - - /* enable VBUS */ - gpio_direction_output(GPIO9_USB_VBUS_EN, 1); + gpio_set_value(usb_hub_reset, 0); + gpio_set_value(GPIO9_USB_VBUS_EN, 1); return 0; diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c index 2b7996401b0f..f5abc51c5a07 100644 --- a/arch/arm/mm/mmap.c +++ b/arch/arm/mm/mmap.c @@ -54,7 +54,8 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, * We enforce the MAP_FIXED case. */ if (flags & MAP_FIXED) { - if (aliasing && flags & MAP_SHARED && addr & (SHMLBA - 1)) + if (aliasing && flags & MAP_SHARED && + (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)) return -EINVAL; return addr; } diff --git a/arch/avr32/include/asm/syscalls.h b/arch/avr32/include/asm/syscalls.h index 483d666c27c0..66a197266637 100644 --- a/arch/avr32/include/asm/syscalls.h +++ b/arch/avr32/include/asm/syscalls.h @@ -29,10 +29,6 @@ asmlinkage int sys_sigaltstack(const stack_t __user *, stack_t __user *, struct pt_regs *); asmlinkage int sys_rt_sigreturn(struct pt_regs *); -/* kernel/sys_avr32.c */ -asmlinkage long sys_mmap2(unsigned long, unsigned long, unsigned long, - unsigned long, unsigned long, off_t); - /* mm/cache.c */ asmlinkage int sys_cacheflush(int, void __user *, size_t); diff --git a/arch/avr32/kernel/sys_avr32.c b/arch/avr32/kernel/sys_avr32.c index 5d2daeaf356f..459349b5ed5a 100644 --- a/arch/avr32/kernel/sys_avr32.c +++ b/arch/avr32/kernel/sys_avr32.c @@ -5,39 +5,8 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include <linux/errno.h> -#include <linux/fs.h> -#include <linux/file.h> -#include <linux/mm.h> #include <linux/unistd.h> -#include <asm/mman.h> -#include <asm/uaccess.h> -#include <asm/syscalls.h> - -asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, off_t offset) -{ - int error = -EBADF; - struct file *file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - return error; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, offset); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); - return error; -} - int kernel_execve(const char *file, char **argv, char **envp) { register long scno asm("r8") = __NR_execve; diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S index f7244cd02fbb..0447a3e2ba64 100644 --- a/arch/avr32/kernel/syscall-stubs.S +++ b/arch/avr32/kernel/syscall-stubs.S @@ -61,7 +61,7 @@ __sys_execve: __sys_mmap2: pushm lr st.w --sp, ARG6 - call sys_mmap2 + call sys_mmap_pgoff sub sp, -4 popm pc diff --git a/arch/blackfin/include/asm/page.h b/arch/blackfin/include/asm/page.h index 944a07c6cfd6..1d04e4078340 100644 --- a/arch/blackfin/include/asm/page.h +++ b/arch/blackfin/include/asm/page.h @@ -10,4 +10,9 @@ #include <asm-generic/page.h> #define MAP_NR(addr) (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT) +#define VM_DATA_DEFAULT_FLAGS \ + (VM_READ | VM_WRITE | \ + ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \ + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) + #endif diff --git a/arch/blackfin/kernel/sys_bfin.c b/arch/blackfin/kernel/sys_bfin.c index afcef129d4e8..2e7f8e10bf87 100644 --- a/arch/blackfin/kernel/sys_bfin.c +++ b/arch/blackfin/kernel/sys_bfin.c @@ -22,39 +22,6 @@ #include <asm/cacheflush.h> #include <asm/dma.h> -/* common code for old and new mmaps */ -static inline long -do_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file *file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); - out: - return error; -} - -asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - return do_mmap2(addr, len, prot, flags, fd, pgoff); -} - asmlinkage void *sys_sram_alloc(size_t size, unsigned long flags) { return sram_alloc_with_lsl(size, flags); diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index 94a0375cbdcf..1d8f00ab9ee9 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -1422,7 +1422,7 @@ ENTRY(_sys_call_table) .long _sys_ni_syscall /* streams2 */ .long _sys_vfork /* 190 */ .long _sys_getrlimit - .long _sys_mmap2 + .long _sys_mmap_pgoff .long _sys_truncate64 .long _sys_ftruncate64 .long _sys_stat64 /* 195 */ diff --git a/arch/cris/kernel/sys_cris.c b/arch/cris/kernel/sys_cris.c index 2ad962c7e88e..c2bbb1ac98a9 100644 --- a/arch/cris/kernel/sys_cris.c +++ b/arch/cris/kernel/sys_cris.c @@ -26,31 +26,6 @@ #include <asm/uaccess.h> #include <asm/segment.h> -/* common code for old and new mmaps */ -static inline long -do_mmap2(unsigned long addr, unsigned long len, unsigned long prot, - unsigned long flags, unsigned long fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - asmlinkage unsigned long old_mmap(unsigned long __user *args) { unsigned long buffer[6]; @@ -63,7 +38,7 @@ asmlinkage unsigned long old_mmap(unsigned long __user *args) if (buffer[5] & ~PAGE_MASK) /* verify that offset is on page boundary */ goto out; - err = do_mmap2(buffer[0], buffer[1], buffer[2], buffer[3], + err = sys_mmap_pgoff(buffer[0], buffer[1], buffer[2], buffer[3], buffer[4], buffer[5] >> PAGE_SHIFT); out: return err; @@ -73,7 +48,8 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { - return do_mmap2(addr, len, prot, flags, fd, pgoff); + /* bug(?): 8Kb pages here */ + return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); } /* diff --git a/arch/frv/include/asm/page.h b/arch/frv/include/asm/page.h index 25c6a5002355..8c97068ac8fc 100644 --- a/arch/frv/include/asm/page.h +++ b/arch/frv/include/asm/page.h @@ -63,12 +63,10 @@ extern unsigned long max_pfn; #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) -#ifdef CONFIG_MMU #define VM_DATA_DEFAULT_FLAGS \ (VM_READ | VM_WRITE | \ ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -#endif #endif /* __ASSEMBLY__ */ diff --git a/arch/frv/kernel/sys_frv.c b/arch/frv/kernel/sys_frv.c index 2b6b5289cdcc..1d3d4c9e2521 100644 --- a/arch/frv/kernel/sys_frv.c +++ b/arch/frv/kernel/sys_frv.c @@ -31,9 +31,6 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { - int error = -EBADF; - struct file * file = NULL; - /* As with sparc32, make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE we have.... */ @@ -41,69 +38,10 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, trying to map something we can't */ if (pgoff & ((1 << (PAGE_SHIFT - 12)) - 1)) return -EINVAL; - pgoff >>= PAGE_SHIFT - 12; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - -#if 0 /* DAVIDM - do we want this */ -struct mmap_arg_struct64 { - __u32 addr; - __u32 len; - __u32 prot; - __u32 flags; - __u64 offset; /* 64 bits */ - __u32 fd; -}; - -asmlinkage long sys_mmap64(struct mmap_arg_struct64 *arg) -{ - int error = -EFAULT; - struct file * file = NULL; - struct mmap_arg_struct64 a; - unsigned long pgoff; - - if (copy_from_user(&a, arg, sizeof(a))) - return -EFAULT; - - if ((long)a.offset & ~PAGE_MASK) - return -EINVAL; - - pgoff = a.offset >> PAGE_SHIFT; - if ((a.offset >> PAGE_SHIFT) != pgoff) - return -EINVAL; - - if (!(a.flags & MAP_ANONYMOUS)) { - error = -EBADF; - file = fget(a.fd); - if (!file) - goto out; - } - a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags, pgoff); - up_write(¤t->mm->mmap_sem); - if (file) - fput(file); -out: - return error; + return sys_mmap_pgoff(addr, len, prot, flags, fd, + pgoff >> (PAGE_SHIFT - 12)); } -#endif /* * sys_ipc() is the de-multiplexer for the SysV IPC calls.. diff --git a/arch/h8300/kernel/sys_h8300.c b/arch/h8300/kernel/sys_h8300.c index 8cb5d73a0e35..b5969db0ca10 100644 --- a/arch/h8300/kernel/sys_h8300.c +++ b/arch/h8300/kernel/sys_h8300.c @@ -26,39 +26,6 @@ #include <asm/traps.h> #include <asm/unistd.h> -/* common code for old and new mmaps */ -static inline long do_mmap2( - unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - -asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - return do_mmap2(addr, len, prot, flags, fd, pgoff); -} - /* * Perform the select(nd, in, out, ex, tv) and mmap() system * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to @@ -87,57 +54,11 @@ asmlinkage int old_mmap(struct mmap_arg_struct *arg) if (a.offset & ~PAGE_MASK) goto out; - a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); -out: - return error; -} - -#if 0 /* DAVIDM - do we want this */ -struct mmap_arg_struct64 { - __u32 addr; - __u32 len; - __u32 prot; - __u32 flags; - __u64 offset; /* 64 bits */ - __u32 fd; -}; - -asmlinkage long sys_mmap64(struct mmap_arg_struct64 *arg) -{ - int error = -EFAULT; - struct file * file = NULL; - struct mmap_arg_struct64 a; - unsigned long pgoff; - - if (copy_from_user(&a, arg, sizeof(a))) - return -EFAULT; - - if ((long)a.offset & ~PAGE_MASK) - return -EINVAL; - - pgoff = a.offset >> PAGE_SHIFT; - if ((a.offset >> PAGE_SHIFT) != pgoff) - return -EINVAL; - - if (!(a.flags & MAP_ANONYMOUS)) { - error = -EBADF; - file = fget(a.fd); - if (!file) - goto out; - } - a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags, pgoff); - up_write(¤t->mm->mmap_sem); - if (file) - fput(file); + error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, + a.offset >> PAGE_SHIFT); out: return error; } -#endif struct sel_arg_struct { unsigned long n; diff --git a/arch/h8300/kernel/syscalls.S b/arch/h8300/kernel/syscalls.S index 4eb67faac633..2d69881eda6a 100644 --- a/arch/h8300/kernel/syscalls.S +++ b/arch/h8300/kernel/syscalls.S @@ -206,7 +206,7 @@ SYMBOL_NAME_LABEL(sys_call_table) .long SYMBOL_NAME(sys_ni_syscall) /* streams2 */ .long SYMBOL_NAME(sys_vfork) /* 190 */ .long SYMBOL_NAME(sys_getrlimit) - .long SYMBOL_NAME(sys_mmap2) + .long SYMBOL_NAME(sys_mmap_pgoff) .long SYMBOL_NAME(sys_truncate64) .long SYMBOL_NAME(sys_ftruncate64) .long SYMBOL_NAME(sys_stat64) /* 195 */ diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c index 625ed8f76fce..e031ee8ecb05 100644 --- a/arch/ia64/ia32/sys_ia32.c +++ b/arch/ia64/ia32/sys_ia32.c @@ -858,6 +858,9 @@ ia32_do_mmap (struct file *file, unsigned long addr, unsigned long len, int prot prot = get_prot32(prot); + if (flags & MAP_HUGETLB) + return -ENOMEM; + #if PAGE_SHIFT > IA32_PAGE_SHIFT mutex_lock(&ia32_mmap_mutex); { diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h index 0d9d16e2d949..cc8335eb3110 100644 --- a/arch/ia64/include/asm/io.h +++ b/arch/ia64/include/asm/io.h @@ -424,6 +424,8 @@ __writeq (unsigned long val, volatile void __iomem *addr) extern void __iomem * ioremap(unsigned long offset, unsigned long size); extern void __iomem * ioremap_nocache (unsigned long offset, unsigned long size); extern void iounmap (volatile void __iomem *addr); +extern void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size); +extern void early_iounmap (volatile void __iomem *addr, unsigned long size); /* * String version of IO memory access ops: diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c index 92ed83f34036..609d50056a6c 100644 --- a/arch/ia64/kernel/sys_ia64.c +++ b/arch/ia64/kernel/sys_ia64.c @@ -100,51 +100,7 @@ sys_getpagesize (void) asmlinkage unsigned long ia64_brk (unsigned long brk) { - unsigned long rlim, retval, newbrk, oldbrk; - struct mm_struct *mm = current->mm; - - /* - * Most of this replicates the code in sys_brk() except for an additional safety - * check and the clearing of r8. However, we can't call sys_brk() because we need - * to acquire the mmap_sem before we can do the test... - */ - down_write(&mm->mmap_sem); - - if (brk < mm->end_code) - goto out; - newbrk = PAGE_ALIGN(brk); - oldbrk = PAGE_ALIGN(mm->brk); - if (oldbrk == newbrk) - goto set_brk; - - /* Always allow shrinking brk. */ - if (brk <= mm->brk) { - if (!do_munmap(mm, newbrk, oldbrk-newbrk)) - goto set_brk; - goto out; - } - - /* Check against unimplemented/unmapped addresses: */ - if ((newbrk - oldbrk) > RGN_MAP_LIMIT || REGION_OFFSET(newbrk) > RGN_MAP_LIMIT) - goto out; - - /* Check against rlimit.. */ - rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur; - if (rlim < RLIM_INFINITY && brk - mm->start_data > rlim) - goto out; - - /* Check against existing mmap mappings. */ - if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE)) - goto out; - - /* Ok, looks good - let it rip. */ - if (do_brk(oldbrk, newbrk-oldbrk) != oldbrk) - goto out; -set_brk: - mm->brk = brk; -out: - retval = mm->brk; - up_write(&mm->mmap_sem); + unsigned long retval = sys_brk(brk); force_successful_syscall_return(); return retval; } @@ -185,39 +141,6 @@ int ia64_mmap_check(unsigned long addr, unsigned long len, return 0; } -static inline unsigned long -do_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, unsigned long pgoff) -{ - struct file *file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - return -EBADF; - - if (!file->f_op || !file->f_op->mmap) { - addr = -ENODEV; - goto out; - } - } - - /* Careful about overflows.. */ - len = PAGE_ALIGN(len); - if (!len || len > TASK_SIZE) { - addr = -EINVAL; - goto out; - } - - down_write(¤t->mm->mmap_sem); - addr = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - -out: if (file) - fput(file); - return addr; -} - /* * mmap2() is like mmap() except that the offset is expressed in units * of PAGE_SIZE (instead of bytes). This allows to mmap2() (pieces @@ -226,7 +149,7 @@ out: if (file) asmlinkage unsigned long sys_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, long pgoff) { - addr = do_mmap2(addr, len, prot, flags, fd, pgoff); + addr = sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); if (!IS_ERR((void *) addr)) force_successful_syscall_return(); return addr; @@ -238,7 +161,7 @@ sys_mmap (unsigned long addr, unsigned long len, int prot, int flags, int fd, lo if (offset_in_page(off) != 0) return -EINVAL; - addr = do_mmap2(addr, len, prot, flags, fd, off >> PAGE_SHIFT); + addr = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); if (!IS_ERR((void *) addr)) force_successful_syscall_return(); return addr; diff --git a/arch/ia64/mm/ioremap.c b/arch/ia64/mm/ioremap.c index 2a140627dfd6..3dccdd8eb275 100644 --- a/arch/ia64/mm/ioremap.c +++ b/arch/ia64/mm/ioremap.c @@ -22,6 +22,12 @@ __ioremap (unsigned long phys_addr) } void __iomem * +early_ioremap (unsigned long phys_addr, unsigned long size) +{ + return __ioremap(phys_addr); +} + +void __iomem * ioremap (unsigned long phys_addr, unsigned long size) { void __iomem *addr; @@ -102,6 +108,11 @@ ioremap_nocache (unsigned long phys_addr, unsigned long size) EXPORT_SYMBOL(ioremap_nocache); void +early_iounmap (volatile void __iomem *addr, unsigned long size) +{ +} + +void iounmap (volatile void __iomem *addr) { if (REGION_NUMBER(addr) == RGN_GATE) diff --git a/arch/m32r/kernel/sys_m32r.c b/arch/m32r/kernel/sys_m32r.c index 305ac852bbed..d3c865c5a6ba 100644 --- a/arch/m32r/kernel/sys_m32r.c +++ b/arch/m32r/kernel/sys_m32r.c @@ -76,30 +76,6 @@ asmlinkage int sys_tas(int __user *addr) return oldval; } -asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file *file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - /* * sys_ipc() is the de-multiplexer for the SysV IPC calls.. * diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S index aa3bf4cfab37..60536e271233 100644 --- a/arch/m32r/kernel/syscall_table.S +++ b/arch/m32r/kernel/syscall_table.S @@ -191,7 +191,7 @@ ENTRY(sys_call_table) .long sys_ni_syscall /* streams2 */ .long sys_vfork /* 190 */ .long sys_getrlimit - .long sys_mmap2 + .long sys_mmap_pgoff .long sys_truncate64 .long sys_ftruncate64 .long sys_stat64 /* 195 */ diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c index 7deb402bfc75..218f441de667 100644 --- a/arch/m68k/kernel/sys_m68k.c +++ b/arch/m68k/kernel/sys_m68k.c @@ -29,37 +29,16 @@ #include <asm/page.h> #include <asm/unistd.h> -/* common code for old and new mmaps */ -static inline long do_mmap2( - unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { - return do_mmap2(addr, len, prot, flags, fd, pgoff); + /* + * This is wrong for sun3 - there PAGE_SIZE is 8Kb, + * so we need to shift the argument down by 1; m68k mmap64(3) + * (in libc) expects the last argument of mmap2 in 4Kb units. + */ + return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); } /* @@ -90,57 +69,11 @@ asmlinkage int old_mmap(struct mmap_arg_struct __user *arg) if (a.offset & ~PAGE_MASK) goto out; - a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); -out: - return error; -} - -#if 0 -struct mmap_arg_struct64 { - __u32 addr; - __u32 len; - __u32 prot; - __u32 flags; - __u64 offset; /* 64 bits */ - __u32 fd; -}; - -asmlinkage long sys_mmap64(struct mmap_arg_struct64 *arg) -{ - int error = -EFAULT; - struct file * file = NULL; - struct mmap_arg_struct64 a; - unsigned long pgoff; - - if (copy_from_user(&a, arg, sizeof(a))) - return -EFAULT; - - if ((long)a.offset & ~PAGE_MASK) - return -EINVAL; - - pgoff = a.offset >> PAGE_SHIFT; - if ((a.offset >> PAGE_SHIFT) != pgoff) - return -EINVAL; - - if (!(a.flags & MAP_ANONYMOUS)) { - error = -EBADF; - file = fget(a.fd); - if (!file) - goto out; - } - a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags, pgoff); - up_write(¤t->mm->mmap_sem); - if (file) - fput(file); + error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, + a.offset >> PAGE_SHIFT); out: return error; } -#endif struct sel_arg_struct { unsigned long n; diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c index efdd090778a3..b67cbc735a9b 100644 --- a/arch/m68knommu/kernel/sys_m68k.c +++ b/arch/m68knommu/kernel/sys_m68k.c @@ -27,39 +27,6 @@ #include <asm/cacheflush.h> #include <asm/unistd.h> -/* common code for old and new mmaps */ -static inline long do_mmap2( - unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - -asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - return do_mmap2(addr, len, prot, flags, fd, pgoff); -} - /* * Perform the select(nd, in, out, ex, tv) and mmap() system * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to @@ -88,9 +55,8 @@ asmlinkage int old_mmap(struct mmap_arg_struct *arg) if (a.offset & ~PAGE_MASK) goto out; - a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); + error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, + a.offset >> PAGE_SHIFT); out: return error; } diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S index 23535cc415ae..486837efa3d7 100644 --- a/arch/m68knommu/kernel/syscalltable.S +++ b/arch/m68knommu/kernel/syscalltable.S @@ -210,7 +210,7 @@ ENTRY(sys_call_table) .long sys_ni_syscall /* streams2 */ .long sys_vfork /* 190 */ .long sys_getrlimit - .long sys_mmap2 + .long sys_mmap_pgoff .long sys_truncate64 .long sys_ftruncate64 .long sys_stat64 /* 195 */ diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c index 07cabed4b947..9f3c205fb75b 100644 --- a/arch/microblaze/kernel/sys_microblaze.c +++ b/arch/microblaze/kernel/sys_microblaze.c @@ -62,46 +62,14 @@ out: return error; } -asmlinkage long -sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - struct file *file = NULL; - int ret = -EBADF; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) { - printk(KERN_INFO "no fd in mmap\r\n"); - goto out; - } - } - - down_write(¤t->mm->mmap_sem); - ret = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - if (file) - fput(file); -out: - return ret; -} - asmlinkage long sys_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, off_t pgoff) { - int err = -EINVAL; - - if (pgoff & ~PAGE_MASK) { - printk(KERN_INFO "no pagemask in mmap\r\n"); - goto out; - } + if (pgoff & ~PAGE_MASK) + return -EINVAL; - err = sys_mmap2(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT); -out: - return err; + return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT); } /* diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S index ecec19155135..eb50ce5e4e84 100644 --- a/arch/microblaze/kernel/syscall_table.S +++ b/arch/microblaze/kernel/syscall_table.S @@ -196,7 +196,7 @@ ENTRY(sys_call_table) .long sys_ni_syscall /* reserved for streams2 */ .long sys_vfork /* 190 */ .long sys_getrlimit - .long sys_mmap2 /* mmap2 */ + .long sys_mmap_pgoff /* mmap2 */ .long sys_truncate64 .long sys_ftruncate64 .long sys_stat64 /* 195 */ diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index b77fefaff9da..ea4a74652cf8 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -67,28 +67,13 @@ SYSCALL_DEFINE6(32_mmap2, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, unsigned long, fd, unsigned long, pgoff) { - struct file * file = NULL; unsigned long error; error = -EINVAL; if (pgoff & (~PAGE_MASK >> 12)) goto out; - pgoff >>= PAGE_SHIFT-12; - - if (!(flags & MAP_ANONYMOUS)) { - error = -EBADF; - file = fget(fd); - if (!file) - goto out; - } - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - if (file) - fput(file); - + error = sys_mmap_pgoff(addr, len, prot, flags, fd, + pgoff >> (PAGE_SHIFT-12)); out: return error; } diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c index fe0d79805603..3f7f466190b4 100644 --- a/arch/mips/kernel/syscall.c +++ b/arch/mips/kernel/syscall.c @@ -93,7 +93,8 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, * We do not accept a shared mapping if it would violate * cache aliasing constraints. */ - if ((flags & MAP_SHARED) && (addr & shm_align_mask)) + if ((flags & MAP_SHARED) && + ((addr - (pgoff << PAGE_SHIFT)) & shm_align_mask)) return -EINVAL; return addr; } @@ -129,31 +130,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, } } -/* common code for old and new mmaps */ -static inline unsigned long -do_mmap2(unsigned long addr, unsigned long len, unsigned long prot, - unsigned long flags, unsigned long fd, unsigned long pgoff) -{ - unsigned long error = -EBADF; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - SYSCALL_DEFINE6(mips_mmap, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, unsigned long, fd, off_t, offset) @@ -164,7 +140,7 @@ SYSCALL_DEFINE6(mips_mmap, unsigned long, addr, unsigned long, len, if (offset & ~PAGE_MASK) goto out; - result = do_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); + result = sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); out: return result; @@ -177,7 +153,7 @@ SYSCALL_DEFINE6(mips_mmap2, unsigned long, addr, unsigned long, len, if (pgoff & (~PAGE_MASK >> 12)) return -EINVAL; - return do_mmap2(addr, len, prot, flags, fd, pgoff >> (PAGE_SHIFT-12)); + return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> (PAGE_SHIFT-12)); } save_static_function(sys_fork); diff --git a/arch/mn10300/include/asm/mman.h b/arch/mn10300/include/asm/mman.h index 8eebf89f5ab1..db5c53da73ce 100644 --- a/arch/mn10300/include/asm/mman.h +++ b/arch/mn10300/include/asm/mman.h @@ -1 +1,6 @@ #include <asm-generic/mman.h> + +#define MIN_MAP_ADDR PAGE_SIZE /* minimum fixed mmap address */ + +#define arch_mmap_check(addr, len, flags) \ + (((flags) & MAP_FIXED && (addr) < MIN_MAP_ADDR) ? -EINVAL : 0) diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S index a94e7ea3faa6..c9ee6c009d79 100644 --- a/arch/mn10300/kernel/entry.S +++ b/arch/mn10300/kernel/entry.S @@ -578,7 +578,7 @@ ENTRY(sys_call_table) .long sys_ni_syscall /* reserved for streams2 */ .long sys_vfork /* 190 */ .long sys_getrlimit - .long sys_mmap2 + .long sys_mmap_pgoff .long sys_truncate64 .long sys_ftruncate64 .long sys_stat64 /* 195 */ diff --git a/arch/mn10300/kernel/sys_mn10300.c b/arch/mn10300/kernel/sys_mn10300.c index 8ca5af00334c..17cc6ce04e84 100644 --- a/arch/mn10300/kernel/sys_mn10300.c +++ b/arch/mn10300/kernel/sys_mn10300.c @@ -23,47 +23,13 @@ #include <asm/uaccess.h> -#define MIN_MAP_ADDR PAGE_SIZE /* minimum fixed mmap address */ - -/* - * memory mapping syscall - */ -asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - struct file *file = NULL; - long error = -EINVAL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - if (flags & MAP_FIXED && addr < MIN_MAP_ADDR) - goto out; - - error = -EBADF; - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - asmlinkage long old_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long offset) { if (offset & ~PAGE_MASK) return -EINVAL; - return sys_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); + return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); } struct sel_arg_struct { diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 71b31957c8f1..9147391afb03 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -110,37 +110,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, return addr; } -static unsigned long do_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, unsigned long fd, - unsigned long pgoff) -{ - struct file * file = NULL; - unsigned long error = -EBADF; - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file != NULL) - fput(file); -out: - return error; -} - asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { /* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE we have. */ - return do_mmap2(addr, len, prot, flags, fd, pgoff >> (PAGE_SHIFT - 12)); + return sys_mmap_pgoff(addr, len, prot, flags, fd, + pgoff >> (PAGE_SHIFT - 12)); } asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, @@ -148,7 +125,8 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, unsigned long offset) { if (!(offset & ~PAGE_MASK)) { - return do_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); + return sys_mmap_pgoff(addr, len, prot, flags, fd, + offset >> PAGE_SHIFT); } else { return -EINVAL; } diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h index 014a624f4c8e..56985023a47d 100644 --- a/arch/powerpc/include/asm/elf.h +++ b/arch/powerpc/include/asm/elf.h @@ -236,14 +236,10 @@ typedef elf_vrregset_t elf_fpxregset_t; #ifdef __powerpc64__ # define SET_PERSONALITY(ex) \ do { \ - unsigned long new_flags = 0; \ if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ - new_flags = _TIF_32BIT; \ - if ((current_thread_info()->flags & _TIF_32BIT) \ - != new_flags) \ - set_thread_flag(TIF_ABI_PENDING); \ + set_thread_flag(TIF_32BIT); \ else \ - clear_thread_flag(TIF_ABI_PENDING); \ + clear_thread_flag(TIF_32BIT); \ if (personality(current->personality) != PER_LINUX32) \ set_personality(PER_LINUX | \ (current->personality & (~PER_MASK))); \ diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h index 08454880a2c0..0192a4ee2bc2 100644 --- a/arch/powerpc/include/asm/module.h +++ b/arch/powerpc/include/asm/module.h @@ -87,5 +87,10 @@ struct exception_table_entry; void sort_ex_table(struct exception_table_entry *start, struct exception_table_entry *finish); +#ifdef CONFIG_MODVERSIONS +#define ARCH_RELOCATES_KCRCTAB + +extern const unsigned long reloc_start[]; +#endif #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_MODULE_H */ diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index c8b329255678..aa9d383a1c09 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -111,7 +111,6 @@ static inline struct thread_info *current_thread_info(void) #define TIF_NOTIFY_RESUME 13 /* callback before returning to user */ #define TIF_FREEZE 14 /* Freezing for suspend */ #define TIF_RUNLATCH 15 /* Is the runlatch enabled? */ -#define TIF_ABI_PENDING 16 /* 32/64 bit switch needed */ /* as above, but as bit values */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) @@ -129,7 +128,6 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) #define _TIF_FREEZE (1<<TIF_FREEZE) #define _TIF_RUNLATCH (1<<TIF_RUNLATCH) -#define _TIF_ABI_PENDING (1<<TIF_ABI_PENDING) #define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP) #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \ diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c index a5b632e52fae..f0c624ff59d1 100644 --- a/arch/powerpc/kernel/align.c +++ b/arch/powerpc/kernel/align.c @@ -642,10 +642,14 @@ static int emulate_spe(struct pt_regs *regs, unsigned int reg, */ static int emulate_vsx(unsigned char __user *addr, unsigned int reg, unsigned int areg, struct pt_regs *regs, - unsigned int flags, unsigned int length) + unsigned int flags, unsigned int length, + unsigned int elsize) { char *ptr; + unsigned long *lptr; int ret = 0; + int sw = 0; + int i, j; flush_vsx_to_thread(current); @@ -654,19 +658,35 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg, else ptr = (char *) ¤t->thread.vr[reg - 32]; - if (flags & ST) - ret = __copy_to_user(addr, ptr, length); - else { - if (flags & SPLT){ - ret = __copy_from_user(ptr, addr, length); - ptr += length; + lptr = (unsigned long *) ptr; + + if (flags & SW) + sw = elsize-1; + + for (j = 0; j < length; j += elsize) { + for (i = 0; i < elsize; ++i) { + if (flags & ST) + ret |= __put_user(ptr[i^sw], addr + i); + else + ret |= __get_user(ptr[i^sw], addr + i); } - ret |= __copy_from_user(ptr, addr, length); + ptr += elsize; + addr += elsize; } - if (flags & U) - regs->gpr[areg] = regs->dar; - if (ret) + + if (!ret) { + if (flags & U) + regs->gpr[areg] = regs->dar; + + /* Splat load copies the same data to top and bottom 8 bytes */ + if (flags & SPLT) + lptr[1] = lptr[0]; + /* For 8 byte loads, zero the top 8 bytes */ + else if (!(flags & ST) && (8 == length)) + lptr[1] = 0; + } else return -EFAULT; + return 1; } #endif @@ -767,16 +787,25 @@ int fix_alignment(struct pt_regs *regs) #ifdef CONFIG_VSX if ((instruction & 0xfc00003e) == 0x7c000018) { - /* Additional register addressing bit (64 VSX vs 32 FPR/GPR */ + unsigned int elsize; + + /* Additional register addressing bit (64 VSX vs 32 FPR/GPR) */ reg |= (instruction & 0x1) << 5; /* Simple inline decoder instead of a table */ + /* VSX has only 8 and 16 byte memory accesses */ + nb = 8; if (instruction & 0x200) nb = 16; - else if (instruction & 0x080) - nb = 8; - else - nb = 4; + + /* Vector stores in little-endian mode swap individual + elements, so process them separately */ + elsize = 4; + if (instruction & 0x80) + elsize = 8; + flags = 0; + if (regs->msr & MSR_LE) + flags |= SW; if (instruction & 0x100) flags |= ST; if (instruction & 0x040) @@ -787,7 +816,7 @@ int fix_alignment(struct pt_regs *regs) nb = 8; } PPC_WARN_EMULATED(vsx); - return emulate_vsx(addr, reg, areg, regs, flags, nb); + return emulate_vsx(addr, reg, areg, regs, flags, nb, elsize); } #endif /* A size of 0 indicates an instruction we don't support, with diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index e8dfdbd9327a..cadbed679fbb 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1107,6 +1107,12 @@ void __devinit pcibios_setup_bus_devices(struct pci_bus *bus) list_for_each_entry(dev, &bus->devices, bus_list) { struct dev_archdata *sd = &dev->dev.archdata; + /* Cardbus can call us to add new devices to a bus, so ignore + * those who are already fully discovered + */ + if (dev->is_added) + continue; + /* Setup OF node pointer in archdata */ sd->of_node = pci_device_to_OF_node(dev); @@ -1147,6 +1153,13 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus) } EXPORT_SYMBOL(pcibios_fixup_bus); +void __devinit pci_fixup_cardbus(struct pci_bus *bus) +{ + /* Now fixup devices on that bus */ + pcibios_setup_bus_devices(bus); +} + + static int skip_isa_ioresource_align(struct pci_dev *dev) { if ((ppc_pci_flags & PPC_PCI_CAN_SKIP_ISA_ALIGN) && diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index c930ac38e59f..7b816daf3eba 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -554,18 +554,6 @@ void exit_thread(void) void flush_thread(void) { -#ifdef CONFIG_PPC64 - struct thread_info *t = current_thread_info(); - - if (test_ti_thread_flag(t, TIF_ABI_PENDING)) { - clear_ti_thread_flag(t, TIF_ABI_PENDING); - if (test_ti_thread_flag(t, TIF_32BIT)) - clear_ti_thread_flag(t, TIF_32BIT); - else - set_ti_thread_flag(t, TIF_32BIT); - } -#endif - discard_lazy_cpu_state(); if (current->thread.dabr) { diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c index c04832c4a02e..3370e62e43d4 100644 --- a/arch/powerpc/kernel/syscalls.c +++ b/arch/powerpc/kernel/syscalls.c @@ -140,7 +140,6 @@ static inline unsigned long do_mmap2(unsigned long addr, size_t len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long off, int shift) { - struct file * file = NULL; unsigned long ret = -EINVAL; if (!arch_validate_prot(prot)) @@ -151,20 +150,8 @@ static inline unsigned long do_mmap2(unsigned long addr, size_t len, goto out; off >>= shift; } - - ret = -EBADF; - if (!(flags & MAP_ANONYMOUS)) { - if (!(file = fget(fd))) - goto out; - } - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - down_write(¤t->mm->mmap_sem); - ret = do_mmap_pgoff(file, addr, len, prot, flags, off); - up_write(¤t->mm->mmap_sem); - if (file) - fput(file); + ret = sys_mmap_pgoff(addr, len, prot, flags, fd, off); out: return ret; } diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S index 67b6916f0e94..fe460482fa68 100644 --- a/arch/powerpc/kernel/vector.S +++ b/arch/powerpc/kernel/vector.S @@ -58,7 +58,7 @@ _GLOBAL(load_up_altivec) * all 1's */ mfspr r4,SPRN_VRSAVE - cmpdi 0,r4,0 + cmpwi 0,r4,0 bne+ 1f li r4,-1 mtspr SPRN_VRSAVE,r4 diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 27735a7ac12b..dcd01c82e701 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -38,6 +38,9 @@ jiffies = jiffies_64 + 4; #endif SECTIONS { + . = 0; + reloc_start = .; + . = KERNELBASE; /* diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index ae88b1448018..e82749b954cd 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -392,8 +392,22 @@ DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8536, quirk_fsl_pcie_header); DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8641, quirk_fsl_pcie_header); DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8641D, quirk_fsl_pcie_header); DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8610, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1011E, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1011, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1013E, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1013, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1020E, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1020, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1022E, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1022, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P2010E, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P2010, quirk_fsl_pcie_header); DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P2020E, quirk_fsl_pcie_header); DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P2020, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P4040E, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P4040, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P4080E, quirk_fsl_pcie_header); +DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P4080, quirk_fsl_pcie_header); #endif /* CONFIG_PPC_85xx || CONFIG_PPC_86xx */ #if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_MPC512x) diff --git a/arch/s390/include/asm/kvm.h b/arch/s390/include/asm/kvm.h index 3dfcaeb5d7f4..82b32a100c7d 100644 --- a/arch/s390/include/asm/kvm.h +++ b/arch/s390/include/asm/kvm.h @@ -1,6 +1,5 @@ #ifndef __LINUX_KVM_S390_H #define __LINUX_KVM_S390_H - /* * asm-s390/kvm.h - KVM s390 specific structures and definitions * @@ -15,6 +14,8 @@ */ #include <linux/types.h> +#define __KVM_S390 + /* for KVM_GET_REGS and KVM_SET_REGS */ struct kvm_regs { /* general purpose regs for s390 */ diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c index 0debcec23a39..9c746c01a7a7 100644 --- a/arch/s390/kernel/compat_linux.c +++ b/arch/s390/kernel/compat_linux.c @@ -683,38 +683,6 @@ struct mmap_arg_struct_emu31 { u32 offset; }; -/* common code for old and new mmaps */ -static inline long do_mmap2( - unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - struct file * file = NULL; - unsigned long error = -EBADF; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - if (!IS_ERR((void *) error) && error + len >= 0x80000000ULL) { - /* Result is out of bounds. */ - do_munmap(current->mm, addr, len); - error = -ENOMEM; - } - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - - asmlinkage unsigned long old32_mmap(struct mmap_arg_struct_emu31 __user *arg) { @@ -728,7 +696,8 @@ old32_mmap(struct mmap_arg_struct_emu31 __user *arg) if (a.offset & ~PAGE_MASK) goto out; - error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); + error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, + a.offset >> PAGE_SHIFT); out: return error; } @@ -741,7 +710,7 @@ sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg) if (copy_from_user(&a, arg, sizeof(a))) goto out; - error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset); + error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset); out: return error; } diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 48215d15762b..e8ef21c51bbe 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -571,6 +571,7 @@ pgm_svcper: mvc __THREAD_per+__PER_access_id(1,%r8),__LC_PER_ACCESS_ID oi __TI_flags+3(%r9),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP TRACE_IRQS_ON + lm %r2,%r6,SP_R2(%r15) # load svc arguments stosm __SF_EMPTY(%r15),0x03 # reenable interrupts b BASED(sysc_do_svc) diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index 9aff1d449b6e..f33658f09dd7 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -549,6 +549,7 @@ pgm_svcper: mvc __THREAD_per+__PER_access_id(1,%r8),__LC_PER_ACCESS_ID oi __TI_flags+7(%r9),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP TRACE_IRQS_ON + lmg %r2,%r6,SP_R2(%r15) # load svc arguments stosm __SF_EMPTY(%r15),0x03 # reenable interrupts j sysc_do_svc diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S index 6a250808092b..d984a2a380c3 100644 --- a/arch/s390/kernel/head64.S +++ b/arch/s390/kernel/head64.S @@ -83,6 +83,8 @@ startup_continue: slr %r0,%r0 # set cpuid to zero sigp %r1,%r0,0x12 # switch to esame mode sam64 # switch to 64 bit mode + llgfr %r13,%r13 # clear high-order half of base reg + lmh %r0,%r15,.Lzero64-.LPG1(%r13) # clear high-order half lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers lg %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area # move IPL device to lowcore @@ -127,6 +129,7 @@ startup_continue: .L4malign:.quad 0xffffffffffc00000 .Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8 .Lnop: .long 0x07000700 +.Lzero64:.fill 16,4,0x0 #ifdef CONFIG_ZFCPDUMP .Lcurrent_cpu: .long 0x0 diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c index e9d94f61d500..86a74c9c9e63 100644 --- a/arch/s390/kernel/sys_s390.c +++ b/arch/s390/kernel/sys_s390.c @@ -32,32 +32,6 @@ #include <asm/uaccess.h> #include "entry.h" -/* common code for old and new mmaps */ -static inline long do_mmap2( - unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - long error = -EBADF; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - /* * Perform the select(nd, in, out, ex, tv) and mmap() system * calls. Linux for S/390 isn't able to handle more than 5 @@ -81,7 +55,7 @@ SYSCALL_DEFINE1(mmap2, struct mmap_arg_struct __user *, arg) if (copy_from_user(&a, arg, sizeof(a))) goto out; - error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset); + error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset); out: return error; } @@ -98,7 +72,7 @@ SYSCALL_DEFINE1(s390_old_mmap, struct mmap_arg_struct __user *, arg) if (a.offset & ~PAGE_MASK) goto out; - error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); + error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); out: return error; } diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c index ba9d8a7bc1ac..b40096494e46 100644 --- a/arch/s390/kvm/intercept.c +++ b/arch/s390/kvm/intercept.c @@ -213,7 +213,7 @@ static int handle_instruction_and_prog(struct kvm_vcpu *vcpu) return rc2; } -static const intercept_handler_t intercept_funcs[0x48 >> 2] = { +static const intercept_handler_t intercept_funcs[] = { [0x00 >> 2] = handle_noop, [0x04 >> 2] = handle_instruction, [0x08 >> 2] = handle_prog, @@ -230,7 +230,7 @@ int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu) intercept_handler_t func; u8 code = vcpu->arch.sie_block->icptcode; - if (code & 3 || code > 0x48) + if (code & 3 || (code >> 2) >= ARRAY_SIZE(intercept_funcs)) return -ENOTSUPP; func = intercept_funcs[code >> 2]; if (func) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 07ced89740d7..ca2d31277b3b 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -116,10 +116,16 @@ long kvm_arch_dev_ioctl(struct file *filp, int kvm_dev_ioctl_check_extension(long ext) { + int r; + switch (ext) { + case KVM_CAP_S390_PSW: + r = 1; + break; default: - return 0; + r = 0; } + return r; } /* Section: vm related */ @@ -419,8 +425,10 @@ static int kvm_arch_vcpu_ioctl_set_initial_psw(struct kvm_vcpu *vcpu, psw_t psw) vcpu_load(vcpu); if (atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_RUNNING) rc = -EBUSY; - else - vcpu->arch.sie_block->gpsw = psw; + else { + vcpu->run->psw_mask = psw.mask; + vcpu->run->psw_addr = psw.addr; + } vcpu_put(vcpu); return rc; } @@ -508,9 +516,6 @@ rerun_vcpu: switch (kvm_run->exit_reason) { case KVM_EXIT_S390_SIEIC: - vcpu->arch.sie_block->gpsw.mask = kvm_run->s390_sieic.mask; - vcpu->arch.sie_block->gpsw.addr = kvm_run->s390_sieic.addr; - break; case KVM_EXIT_UNKNOWN: case KVM_EXIT_INTR: case KVM_EXIT_S390_RESET: @@ -519,6 +524,9 @@ rerun_vcpu: BUG(); } + vcpu->arch.sie_block->gpsw.mask = kvm_run->psw_mask; + vcpu->arch.sie_block->gpsw.addr = kvm_run->psw_addr; + might_fault(); do { @@ -538,8 +546,6 @@ rerun_vcpu: /* intercept cannot be handled in-kernel, prepare kvm-run */ kvm_run->exit_reason = KVM_EXIT_S390_SIEIC; kvm_run->s390_sieic.icptcode = vcpu->arch.sie_block->icptcode; - kvm_run->s390_sieic.mask = vcpu->arch.sie_block->gpsw.mask; - kvm_run->s390_sieic.addr = vcpu->arch.sie_block->gpsw.addr; kvm_run->s390_sieic.ipa = vcpu->arch.sie_block->ipa; kvm_run->s390_sieic.ipb = vcpu->arch.sie_block->ipb; rc = 0; @@ -551,6 +557,9 @@ rerun_vcpu: rc = 0; } + kvm_run->psw_mask = vcpu->arch.sie_block->gpsw.mask; + kvm_run->psw_addr = vcpu->arch.sie_block->gpsw.addr; + if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &sigsaved, NULL); diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c index 40c8c6748cfe..15ee1111de58 100644 --- a/arch/s390/kvm/sigp.c +++ b/arch/s390/kvm/sigp.c @@ -188,9 +188,9 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address, /* make sure that the new value is valid memory */ address = address & 0x7fffe000u; - if ((copy_from_guest(vcpu, &tmp, - (u64) (address + vcpu->arch.sie_block->gmsor) , 1)) || - (copy_from_guest(vcpu, &tmp, (u64) (address + + if ((copy_from_user(&tmp, (void __user *) + (address + vcpu->arch.sie_block->gmsor) , 1)) || + (copy_from_user(&tmp, (void __user *)(address + vcpu->arch.sie_block->gmsor + PAGE_SIZE), 1))) { *reg |= SIGP_STAT_INVALID_PARAMETER; return 1; /* invalid parameter */ diff --git a/arch/score/kernel/sys_score.c b/arch/score/kernel/sys_score.c index 001249469866..856ed68a58e6 100644 --- a/arch/score/kernel/sys_score.c +++ b/arch/score/kernel/sys_score.c @@ -36,34 +36,16 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { - int error = -EBADF; - struct file *file = NULL; - - if (pgoff & (~PAGE_MASK >> 12)) - return -EINVAL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - return error; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); - - return error; + return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); } asmlinkage long sys_mmap(unsigned long addr, unsigned long len, unsigned long prot, - unsigned long flags, unsigned long fd, off_t pgoff) + unsigned long flags, unsigned long fd, off_t offset) { - return sys_mmap2(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT); + if (unlikely(offset & ~PAGE_MASK)) + return -EINVAL; + return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); } asmlinkage long diff --git a/arch/sh/include/asm/pgtable_32.h b/arch/sh/include/asm/pgtable_32.h index c0d359ce337b..ba64e7f5e39b 100644 --- a/arch/sh/include/asm/pgtable_32.h +++ b/arch/sh/include/asm/pgtable_32.h @@ -344,7 +344,8 @@ static inline void set_pte(pte_t *ptep, pte_t pte) #define pte_special(pte) ((pte).pte_low & _PAGE_SPECIAL) #ifdef CONFIG_X2TLB -#define pte_write(pte) ((pte).pte_high & _PAGE_EXT_USER_WRITE) +#define pte_write(pte) \ + ((pte).pte_high & (_PAGE_EXT_USER_WRITE | _PAGE_EXT_KERN_WRITE)) #else #define pte_write(pte) ((pte).pte_low & _PAGE_RW) #endif @@ -358,7 +359,7 @@ static inline pte_t pte_##fn(pte_t pte) { pte.pte_##h op; return pte; } * individually toggled (and user permissions are entirely decoupled from * kernel permissions), we attempt to couple them a bit more sanely here. */ -PTE_BIT_FUNC(high, wrprotect, &= ~_PAGE_EXT_USER_WRITE); +PTE_BIT_FUNC(high, wrprotect, &= ~(_PAGE_EXT_USER_WRITE | _PAGE_EXT_KERN_WRITE)); PTE_BIT_FUNC(high, mkwrite, |= _PAGE_EXT_USER_WRITE | _PAGE_EXT_KERN_WRITE); PTE_BIT_FUNC(high, mkhuge, |= _PAGE_SZHUGE); #else diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c index 1192398ef582..44aa119df783 100644 --- a/arch/sh/kernel/process_64.c +++ b/arch/sh/kernel/process_64.c @@ -367,7 +367,7 @@ void exit_thread(void) void flush_thread(void) { - /* Called by fs/exec.c (flush_old_exec) to remove traces of a + /* Called by fs/exec.c (setup_new_exec) to remove traces of a * previously running executable. */ #ifdef CONFIG_SH_FPU if (last_task_used_math == current) { diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c index 8aa5d1ceaf14..71399cde03b5 100644 --- a/arch/sh/kernel/sys_sh.c +++ b/arch/sh/kernel/sys_sh.c @@ -28,37 +28,13 @@ #include <asm/cacheflush.h> #include <asm/cachectl.h> -static inline long -do_mmap2(unsigned long addr, unsigned long len, unsigned long prot, - unsigned long flags, int fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file *file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - asmlinkage int old_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, int fd, unsigned long off) { if (off & ~PAGE_MASK) return -EINVAL; - return do_mmap2(addr, len, prot, flags, fd, off>>PAGE_SHIFT); + return sys_mmap_pgoff(addr, len, prot, flags, fd, off>>PAGE_SHIFT); } asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, @@ -74,7 +50,7 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, pgoff >>= PAGE_SHIFT - 12; - return do_mmap2(addr, len, prot, flags, fd, pgoff); + return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); } /* diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c index d2984fa42d3d..afeb710ec5c3 100644 --- a/arch/sh/mm/mmap.c +++ b/arch/sh/mm/mmap.c @@ -54,7 +54,8 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, /* We do not accept a shared mapping if it would violate * cache aliasing constraints. */ - if ((flags & MAP_SHARED) && (addr & shm_align_mask)) + if ((flags & MAP_SHARED) && + ((addr - (pgoff << PAGE_SHIFT)) & shm_align_mask)) return -EINVAL; return addr; } diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile index dfe272d14465..113225b241e0 100644 --- a/arch/sparc/Makefile +++ b/arch/sparc/Makefile @@ -27,6 +27,7 @@ AS := $(AS) -32 LDFLAGS := -m elf32_sparc CHECKFLAGS += -D__sparc__ export BITS := 32 +UTS_MACHINE := sparc #KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7 KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7 @@ -46,6 +47,7 @@ CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64 LDFLAGS := -m elf64_sparc export BITS := 64 +UTS_MACHINE := sparc64 KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \ -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \ diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h index d42e393078c4..996808587914 100644 --- a/arch/sparc/include/asm/elf_64.h +++ b/arch/sparc/include/asm/elf_64.h @@ -196,17 +196,10 @@ static inline unsigned int sparc64_elf_hwcap(void) #define ELF_PLATFORM (NULL) #define SET_PERSONALITY(ex) \ -do { unsigned long new_flags = current_thread_info()->flags; \ - new_flags &= _TIF_32BIT; \ - if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ - new_flags |= _TIF_32BIT; \ +do { if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ + set_thread_flag(TIF_32BIT); \ else \ - new_flags &= ~_TIF_32BIT; \ - if ((current_thread_info()->flags & _TIF_32BIT) \ - != new_flags) \ - set_thread_flag(TIF_ABI_PENDING); \ - else \ - clear_thread_flag(TIF_ABI_PENDING); \ + clear_thread_flag(TIF_32BIT); \ /* flush_thread will update pgd cache */ \ if (personality(current->personality) != PER_LINUX32) \ set_personality(PER_LINUX | \ diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h index 1b45a7bbe407..f78ad9a1b497 100644 --- a/arch/sparc/include/asm/thread_info_64.h +++ b/arch/sparc/include/asm/thread_info_64.h @@ -227,12 +227,11 @@ register struct thread_info *current_thread_info_reg asm("g6"); /* flag bit 8 is available */ #define TIF_SECCOMP 9 /* secure computing */ #define TIF_SYSCALL_AUDIT 10 /* syscall auditing active */ -/* flag bit 11 is available */ /* NOTE: Thread flags >= 12 should be ones we have no interest * in using in assembly, else we can't use the mask as * an immediate value in instructions such as andcc. */ -#define TIF_ABI_PENDING 12 +/* flag bit 12 is available */ #define TIF_MEMDIE 13 #define TIF_POLLING_NRFLAG 14 #define TIF_FREEZE 15 /* is freezing for suspend */ @@ -246,7 +245,6 @@ register struct thread_info *current_thread_info_reg asm("g6"); #define _TIF_32BIT (1<<TIF_32BIT) #define _TIF_SECCOMP (1<<TIF_SECCOMP) #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) -#define _TIF_ABI_PENDING (1<<TIF_ABI_PENDING) #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) #define _TIF_FREEZE (1<<TIF_FREEZE) diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index cb3c72c45aab..e0ba898e30cf 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -1242,13 +1242,13 @@ int ldc_bind(struct ldc_channel *lp, const char *name) snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name); err = request_irq(lp->cfg.rx_irq, ldc_rx, - IRQF_SAMPLE_RANDOM | IRQF_DISABLED | IRQF_SHARED, + IRQF_SAMPLE_RANDOM | IRQF_DISABLED, lp->rx_irq_name, lp); if (err) return err; err = request_irq(lp->cfg.tx_irq, ldc_tx, - IRQF_SAMPLE_RANDOM | IRQF_DISABLED | IRQF_SHARED, + IRQF_SAMPLE_RANDOM | IRQF_DISABLED, lp->tx_irq_name, lp); if (err) { free_irq(lp->cfg.rx_irq, lp); diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index b129611590a4..477127450e53 100644 --- a/arch/sparc/kernel/nmi.c +++ b/arch/sparc/kernel/nmi.c @@ -96,7 +96,6 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) int cpu = smp_processor_id(); clear_softint(1 << irq); - pcr_ops->write(PCR_PIC_PRIV); local_cpu_data().__nmi_count++; @@ -105,6 +104,8 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) if (notify_die(DIE_NMI, "nmi", regs, 0, pt_regs_trap_type(regs), SIGINT) == NOTIFY_STOP) touched = 1; + else + pcr_ops->write(PCR_PIC_PRIV); sum = kstat_irqs_cpu(0, cpu); if (__get_cpu_var(nmi_touch)) { diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c index 881947e59e95..0a6f2d1798d1 100644 --- a/arch/sparc/kernel/of_device_64.c +++ b/arch/sparc/kernel/of_device_64.c @@ -104,9 +104,19 @@ static int of_bus_pci_map(u32 *addr, const u32 *range, int i; /* Check address type match */ - if ((addr[0] ^ range[0]) & 0x03000000) - return -EINVAL; + if (!((addr[0] ^ range[0]) & 0x03000000)) + goto type_match; + + /* Special exception, we can map a 64-bit address into + * a 32-bit range. + */ + if ((addr[0] & 0x03000000) == 0x03000000 && + (range[0] & 0x03000000) == 0x02000000) + goto type_match; + + return -EINVAL; +type_match: if (of_out_of_range(addr + 1, range + 1, range + na + pna, na - 1, ns)) return -EINVAL; diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c index fa5936e1c3b9..198fb4e79ba2 100644 --- a/arch/sparc/kernel/perf_event.c +++ b/arch/sparc/kernel/perf_event.c @@ -986,6 +986,17 @@ static int __kprobes perf_event_nmi_handler(struct notifier_block *self, data.addr = 0; cpuc = &__get_cpu_var(cpu_hw_events); + + /* If the PMU has the TOE IRQ enable bits, we need to do a + * dummy write to the %pcr to clear the overflow bits and thus + * the interrupt. + * + * Do this before we peek at the counters to determine + * overflow so we don't lose any events. + */ + if (sparc_pmu->irq_bit) + pcr_ops->write(cpuc->pcr); + for (idx = 0; idx < MAX_HWEVENTS; idx++) { struct perf_event *event = cpuc->events[idx]; struct hw_perf_event *hwc; diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index 18d67854a1b8..c3f1cce0e95e 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -365,14 +365,6 @@ void flush_thread(void) struct thread_info *t = current_thread_info(); struct mm_struct *mm; - if (test_ti_thread_flag(t, TIF_ABI_PENDING)) { - clear_ti_thread_flag(t, TIF_ABI_PENDING); - if (test_ti_thread_flag(t, TIF_32BIT)) - clear_ti_thread_flag(t, TIF_32BIT); - else - set_ti_thread_flag(t, TIF_32BIT); - } - mm = t->task->mm; if (mm) tsb_context_switch(mm); diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c index 03035c852a43..3a82e65d8db2 100644 --- a/arch/sparc/kernel/sys_sparc_32.c +++ b/arch/sparc/kernel/sys_sparc_32.c @@ -45,7 +45,8 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi /* We do not accept a shared mapping if it would violate * cache aliasing constraints. */ - if ((flags & MAP_SHARED) && (addr & (SHMLBA - 1))) + if ((flags & MAP_SHARED) && + ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) return -EINVAL; return addr; } @@ -79,15 +80,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi } } -asmlinkage unsigned long sparc_brk(unsigned long brk) -{ - if(ARCH_SUN4C) { - if ((brk & 0xe0000000) != (current->mm->brk & 0xe0000000)) - return current->mm->brk; - } - return sys_brk(brk); -} - /* * sys_pipe() is the normal C calling standard for creating * a pipe. It's not the way unix traditionally does this, though. @@ -234,31 +226,6 @@ int sparc_mmap_check(unsigned long addr, unsigned long len) } /* Linux version of mmap */ -static unsigned long do_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, unsigned long fd, - unsigned long pgoff) -{ - struct file * file = NULL; - unsigned long retval = -EBADF; - - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - len = PAGE_ALIGN(len); - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - down_write(¤t->mm->mmap_sem); - retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return retval; -} asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, @@ -266,14 +233,16 @@ asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len, { /* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE we have. */ - return do_mmap2(addr, len, prot, flags, fd, pgoff >> (PAGE_SHIFT - 12)); + return sys_mmap_pgoff(addr, len, prot, flags, fd, + pgoff >> (PAGE_SHIFT - 12)); } asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long off) { - return do_mmap2(addr, len, prot, flags, fd, off >> PAGE_SHIFT); + /* no alignment check? */ + return sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); } long sparc_remap_file_pages(unsigned long start, unsigned long size, @@ -287,27 +256,6 @@ long sparc_remap_file_pages(unsigned long start, unsigned long size, (pgoff >> (PAGE_SHIFT - 12)), flags); } -extern unsigned long do_mremap(unsigned long addr, - unsigned long old_len, unsigned long new_len, - unsigned long flags, unsigned long new_addr); - -asmlinkage unsigned long sparc_mremap(unsigned long addr, - unsigned long old_len, unsigned long new_len, - unsigned long flags, unsigned long new_addr) -{ - unsigned long ret = -EINVAL; - - if (unlikely(sparc_mmap_check(addr, old_len))) - goto out; - if (unlikely(sparc_mmap_check(new_addr, new_len))) - goto out; - down_write(¤t->mm->mmap_sem); - ret = do_mremap(addr, old_len, new_len, flags, new_addr); - up_write(¤t->mm->mmap_sem); -out: - return ret; -} - /* we come to here via sys_nis_syscall so it can setup the regs argument */ asmlinkage unsigned long c_sys_nis_syscall (struct pt_regs *regs) diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index e2d102447a43..cfa0e19abe3b 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -317,10 +317,14 @@ bottomup: unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, unsigned long len, unsigned long pgoff, unsigned long flags) { unsigned long align_goal, addr = -ENOMEM; + unsigned long (*get_area)(struct file *, unsigned long, + unsigned long, unsigned long, unsigned long); + + get_area = current->mm->get_unmapped_area; if (flags & MAP_FIXED) { /* Ok, don't mess with it. */ - return get_unmapped_area(NULL, orig_addr, len, pgoff, flags); + return get_area(NULL, orig_addr, len, pgoff, flags); } flags &= ~MAP_SHARED; @@ -333,7 +337,7 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u align_goal = (64UL * 1024); do { - addr = get_unmapped_area(NULL, orig_addr, len + (align_goal - PAGE_SIZE), pgoff, flags); + addr = get_area(NULL, orig_addr, len + (align_goal - PAGE_SIZE), pgoff, flags); if (!(addr & ~PAGE_MASK)) { addr = (addr + (align_goal - 1UL)) & ~(align_goal - 1UL); break; @@ -351,7 +355,7 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u * be obtained. */ if (addr & ~PAGE_MASK) - addr = get_unmapped_area(NULL, orig_addr, len, pgoff, flags); + addr = get_area(NULL, orig_addr, len, pgoff, flags); return addr; } @@ -399,18 +403,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm) } } -SYSCALL_DEFINE1(sparc_brk, unsigned long, brk) -{ - /* People could try to be nasty and use ta 0x6d in 32bit programs */ - if (test_thread_flag(TIF_32BIT) && brk >= STACK_TOP32) - return current->mm->brk; - - if (unlikely(straddles_64bit_va_hole(current->mm->brk, brk))) - return current->mm->brk; - - return sys_brk(brk); -} - /* * sys_pipe() is the normal C calling standard for creating * a pipe. It's not the way unix traditionally does this, though. @@ -568,23 +560,13 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, unsigned long, fd, unsigned long, off) { - struct file * file = NULL; - unsigned long retval = -EBADF; - - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - len = PAGE_ALIGN(len); + unsigned long retval = -EINVAL; - down_write(¤t->mm->mmap_sem); - retval = do_mmap(file, addr, len, prot, flags, off); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); + if ((off + PAGE_ALIGN(len)) < off) + goto out; + if (off & ~PAGE_MASK) + goto out; + retval = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); out: return retval; } @@ -614,12 +596,6 @@ SYSCALL_DEFINE5(64_mremap, unsigned long, addr, unsigned long, old_len, if (test_thread_flag(TIF_32BIT)) goto out; - if (unlikely(new_len >= VA_EXCLUDE_START)) - goto out; - if (unlikely(sparc_mmap_check(addr, old_len))) - goto out; - if (unlikely(sparc_mmap_check(new_addr, new_len))) - goto out; down_write(¤t->mm->mmap_sem); ret = do_mremap(addr, old_len, new_len, flags, new_addr); diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h index a63c5d2d9849..d2f999ae2b85 100644 --- a/arch/sparc/kernel/systbls.h +++ b/arch/sparc/kernel/systbls.h @@ -9,7 +9,6 @@ struct new_utsname; extern asmlinkage unsigned long sys_getpagesize(void); -extern asmlinkage unsigned long sparc_brk(unsigned long brk); extern asmlinkage long sparc_pipe(struct pt_regs *regs); extern asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index 0f1658d37490..14f950afcd67 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -19,7 +19,7 @@ sys_call_table: /*0*/ .long sys_restart_syscall, sys_exit, sys_fork, sys_read, sys_write /*5*/ .long sys_open, sys_close, sys_wait4, sys_creat, sys_link /*10*/ .long sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys_mknod -/*15*/ .long sys_chmod, sys_lchown16, sparc_brk, sys_nis_syscall, sys_lseek +/*15*/ .long sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, sys_lseek /*20*/ .long sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16 /*25*/ .long sys_vmsplice, sys_ptrace, sys_alarm, sys_sigaltstack, sys_pause /*30*/ .long sys_utime, sys_lchown, sys_fchown, sys_access, sys_nice @@ -67,7 +67,7 @@ sys_call_table: /*235*/ .long sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall /*240*/ .long sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler /*245*/ .long sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, sys_sched_rr_get_interval, sys_nanosleep -/*250*/ .long sparc_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl +/*250*/ .long sys_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl /*255*/ .long sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep /*260*/ .long sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun /*265*/ .long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 009825f6e73c..f63c871eebb7 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -21,7 +21,7 @@ sys_call_table32: /*0*/ .word sys_restart_syscall, sys32_exit, sys_fork, sys_read, sys_write /*5*/ .word sys32_open, sys_close, sys32_wait4, sys32_creat, sys_link /*10*/ .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys32_mknod -/*15*/ .word sys_chmod, sys_lchown16, sys_sparc_brk, sys32_perfctr, sys32_lseek +/*15*/ .word sys_chmod, sys_lchown16, sys_brk, sys32_perfctr, sys32_lseek /*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16 /*25*/ .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, sys32_sigaltstack, sys_pause /*30*/ .word compat_sys_utime, sys_lchown, sys_fchown, sys32_access, sys32_nice @@ -96,7 +96,7 @@ sys_call_table: /*0*/ .word sys_restart_syscall, sparc_exit, sys_fork, sys_read, sys_write /*5*/ .word sys_open, sys_close, sys_wait4, sys_creat, sys_link /*10*/ .word sys_unlink, sys_nis_syscall, sys_chdir, sys_chown, sys_mknod -/*15*/ .word sys_chmod, sys_lchown, sys_sparc_brk, sys_perfctr, sys_lseek +/*15*/ .word sys_chmod, sys_lchown, sys_brk, sys_perfctr, sys_lseek /*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid, sys_getuid /*25*/ .word sys_vmsplice, sys_ptrace, sys_alarm, sys_sigaltstack, sys_nis_syscall /*30*/ .word sys_utime, sys_nis_syscall, sys_nis_syscall, sys_access, sys_nice diff --git a/arch/sparc/lib/mcount.S b/arch/sparc/lib/mcount.S index 7ce9c65f3592..24b8b12deed2 100644 --- a/arch/sparc/lib/mcount.S +++ b/arch/sparc/lib/mcount.S @@ -64,8 +64,9 @@ mcount: 2: sethi %hi(softirq_stack), %g3 or %g3, %lo(softirq_stack), %g3 ldx [%g3 + %g1], %g7 + sub %g7, STACK_BIAS, %g7 cmp %sp, %g7 - bleu,pt %xcc, 2f + bleu,pt %xcc, 3f sethi %hi(THREAD_SIZE), %g3 add %g7, %g3, %g7 cmp %sp, %g7 @@ -75,7 +76,7 @@ mcount: * again, we are already trying to output the stack overflow * message. */ - sethi %hi(ovstack), %g7 ! cant move to panic stack fast enough +3: sethi %hi(ovstack), %g7 ! cant move to panic stack fast enough or %g7, %lo(ovstack), %g7 add %g7, OVSTACKSIZE, %g3 sub %g3, STACK_BIAS + 192, %g3 diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c index a4625c7b2bf9..cccab850c27e 100644 --- a/arch/um/kernel/syscall.c +++ b/arch/um/kernel/syscall.c @@ -8,6 +8,7 @@ #include "linux/mm.h" #include "linux/sched.h" #include "linux/utsname.h" +#include "linux/syscalls.h" #include "asm/current.h" #include "asm/mman.h" #include "asm/uaccess.h" @@ -37,31 +38,6 @@ long sys_vfork(void) return ret; } -/* common code for old and new mmaps */ -long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - long error = -EBADF; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); - out: - return error; -} - long old_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long offset) @@ -70,7 +46,7 @@ long old_mmap(unsigned long addr, unsigned long len, if (offset & ~PAGE_MASK) goto out; - err = sys_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); + err = sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); out: return err; } diff --git a/arch/um/sys-i386/shared/sysdep/syscalls.h b/arch/um/sys-i386/shared/sysdep/syscalls.h index 905698197e35..e7787679e317 100644 --- a/arch/um/sys-i386/shared/sysdep/syscalls.h +++ b/arch/um/sys-i386/shared/sysdep/syscalls.h @@ -20,7 +20,3 @@ extern syscall_handler_t *sys_call_table[]; #define EXECUTE_SYSCALL(syscall, regs) \ ((long (*)(struct syscall_args)) \ (*sys_call_table[syscall]))(SYSCALL_ARGS(®s->regs)) - -extern long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff); diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 72ace9515a07..4fdb669e8469 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -984,12 +984,6 @@ config X86_CPUID with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to /dev/cpu/31/cpuid. -config X86_CPU_DEBUG - tristate "/sys/kernel/debug/x86/cpu/* - CPU Debug support" - ---help--- - If you select this option, this will provide various x86 CPUs - information through debugfs. - choice prompt "High Memory Support" default HIGHMEM4G if !X86_NUMAQ diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 2649840d888f..f2824fb8c79c 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -400,7 +400,7 @@ config X86_TSC config X86_CMPXCHG64 def_bool y - depends on !M386 && !M486 + depends on X86_PAE || X86_64 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MATOM # this should be set for all -march=.. options where the compiler # generates cmov. diff --git a/arch/x86/Makefile_32.cpu b/arch/x86/Makefile_32.cpu index 30e9a264f69d..1937226fd502 100644 --- a/arch/x86/Makefile_32.cpu +++ b/arch/x86/Makefile_32.cpu @@ -46,6 +46,13 @@ cflags-$(CONFIG_MGEODEGX1) += -march=pentium-mmx # cpu entries cflags-$(CONFIG_X86_GENERIC) += $(call tune,generic,$(call tune,i686)) +# Work around the pentium-mmx code generator madness of gcc4.4.x which +# does stack alignment by generating horrible code _before_ the mcount +# prologue (push %ebp, mov %esp, %ebp) which breaks the function graph +# tracer assumptions. For i686, generic, core2 this is set by the +# compiler anyway +cflags-$(CONFIG_FUNCTION_GRAPH_TRACER) += $(call cc-option,-maccumulate-outgoing-args) + # Bug fix for binutils: this option is required in order to keep # binutils from generating NOPL instructions against our will. ifneq ($(CONFIG_X86_P6_NOP),y) diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index 2a4d073d2cf1..f9f472462753 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -308,14 +308,15 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs) if (retval) return retval; - regs->cs = __USER32_CS; - regs->r8 = regs->r9 = regs->r10 = regs->r11 = regs->r12 = - regs->r13 = regs->r14 = regs->r15 = 0; - /* OK, This is the point of no return */ set_personality(PER_LINUX); set_thread_flag(TIF_IA32); - clear_thread_flag(TIF_ABI_PENDING); + + setup_new_exec(bprm); + + regs->cs = __USER32_CS; + regs->r8 = regs->r9 = regs->r10 = regs->r11 = regs->r12 = + regs->r13 = regs->r14 = regs->r15 = 0; current->mm->end_code = ex.a_text + (current->mm->start_code = N_TXTADDR(ex)); diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 581b0568fe19..5294d8446732 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -696,7 +696,7 @@ ia32_sys_call_table: .quad quiet_ni_syscall /* streams2 */ .quad stub32_vfork /* 190 */ .quad compat_sys_getrlimit - .quad sys32_mmap2 + .quad sys_mmap_pgoff .quad sys32_truncate64 .quad sys32_ftruncate64 .quad sys32_stat64 /* 195 */ diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c index 9f5527198825..016218c353e7 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/ia32/sys_ia32.c @@ -155,9 +155,6 @@ struct mmap_arg_struct { asmlinkage long sys32_mmap(struct mmap_arg_struct __user *arg) { struct mmap_arg_struct a; - struct file *file = NULL; - unsigned long retval; - struct mm_struct *mm ; if (copy_from_user(&a, arg, sizeof(a))) return -EFAULT; @@ -165,22 +162,8 @@ asmlinkage long sys32_mmap(struct mmap_arg_struct __user *arg) if (a.offset & ~PAGE_MASK) return -EINVAL; - if (!(a.flags & MAP_ANONYMOUS)) { - file = fget(a.fd); - if (!file) - return -EBADF; - } - - mm = current->mm; - down_write(&mm->mmap_sem); - retval = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags, + return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset>>PAGE_SHIFT); - if (file) - fput(file); - - up_write(&mm->mmap_sem); - - return retval; } asmlinkage long sys32_mprotect(unsigned long start, size_t len, @@ -539,30 +522,6 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd, return ret; } -asmlinkage long sys32_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - struct mm_struct *mm = current->mm; - unsigned long error; - struct file *file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - return -EBADF; - } - - down_write(&mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(&mm->mmap_sem); - - if (file) - fput(file); - return error; -} - asmlinkage long sys32_olduname(struct oldold_utsname __user *name) { char *arch = "x86_64"; diff --git a/arch/x86/include/asm/amd_iommu.h b/arch/x86/include/asm/amd_iommu.h index 4b180897e6b5..18aa3f8e0821 100644 --- a/arch/x86/include/asm/amd_iommu.h +++ b/arch/x86/include/asm/amd_iommu.h @@ -32,6 +32,7 @@ extern void amd_iommu_flush_all_domains(void); extern void amd_iommu_flush_all_devices(void); extern void amd_iommu_shutdown(void); extern void amd_iommu_apply_erratum_63(u16 devid); +extern void amd_iommu_init_api(void); #else static inline int amd_iommu_init(void) { return -ENODEV; } static inline void amd_iommu_detect(void) { } diff --git a/arch/x86/include/asm/cpu_debug.h b/arch/x86/include/asm/cpu_debug.h deleted file mode 100644 index d96c1ee3a95c..000000000000 --- a/arch/x86/include/asm/cpu_debug.h +++ /dev/null @@ -1,127 +0,0 @@ -#ifndef _ASM_X86_CPU_DEBUG_H -#define _ASM_X86_CPU_DEBUG_H - -/* - * CPU x86 architecture debug - * - * Copyright(C) 2009 Jaswinder Singh Rajput - */ - -/* Register flags */ -enum cpu_debug_bit { -/* Model Specific Registers (MSRs) */ - CPU_MC_BIT, /* Machine Check */ - CPU_MONITOR_BIT, /* Monitor */ - CPU_TIME_BIT, /* Time */ - CPU_PMC_BIT, /* Performance Monitor */ - CPU_PLATFORM_BIT, /* Platform */ - CPU_APIC_BIT, /* APIC */ - CPU_POWERON_BIT, /* Power-on */ - CPU_CONTROL_BIT, /* Control */ - CPU_FEATURES_BIT, /* Features control */ - CPU_LBRANCH_BIT, /* Last Branch */ - CPU_BIOS_BIT, /* BIOS */ - CPU_FREQ_BIT, /* Frequency */ - CPU_MTTR_BIT, /* MTRR */ - CPU_PERF_BIT, /* Performance */ - CPU_CACHE_BIT, /* Cache */ - CPU_SYSENTER_BIT, /* Sysenter */ - CPU_THERM_BIT, /* Thermal */ - CPU_MISC_BIT, /* Miscellaneous */ - CPU_DEBUG_BIT, /* Debug */ - CPU_PAT_BIT, /* PAT */ - CPU_VMX_BIT, /* VMX */ - CPU_CALL_BIT, /* System Call */ - CPU_BASE_BIT, /* BASE Address */ - CPU_VER_BIT, /* Version ID */ - CPU_CONF_BIT, /* Configuration */ - CPU_SMM_BIT, /* System mgmt mode */ - CPU_SVM_BIT, /*Secure Virtual Machine*/ - CPU_OSVM_BIT, /* OS-Visible Workaround*/ -/* Standard Registers */ - CPU_TSS_BIT, /* Task Stack Segment */ - CPU_CR_BIT, /* Control Registers */ - CPU_DT_BIT, /* Descriptor Table */ -/* End of Registers flags */ - CPU_REG_ALL_BIT, /* Select all Registers */ -}; - -#define CPU_REG_ALL (~0) /* Select all Registers */ - -#define CPU_MC (1 << CPU_MC_BIT) -#define CPU_MONITOR (1 << CPU_MONITOR_BIT) -#define CPU_TIME (1 << CPU_TIME_BIT) -#define CPU_PMC (1 << CPU_PMC_BIT) -#define CPU_PLATFORM (1 << CPU_PLATFORM_BIT) -#define CPU_APIC (1 << CPU_APIC_BIT) -#define CPU_POWERON (1 << CPU_POWERON_BIT) -#define CPU_CONTROL (1 << CPU_CONTROL_BIT) -#define CPU_FEATURES (1 << CPU_FEATURES_BIT) -#define CPU_LBRANCH (1 << CPU_LBRANCH_BIT) -#define CPU_BIOS (1 << CPU_BIOS_BIT) -#define CPU_FREQ (1 << CPU_FREQ_BIT) -#define CPU_MTRR (1 << CPU_MTTR_BIT) -#define CPU_PERF (1 << CPU_PERF_BIT) -#define CPU_CACHE (1 << CPU_CACHE_BIT) -#define CPU_SYSENTER (1 << CPU_SYSENTER_BIT) -#define CPU_THERM (1 << CPU_THERM_BIT) -#define CPU_MISC (1 << CPU_MISC_BIT) -#define CPU_DEBUG (1 << CPU_DEBUG_BIT) -#define CPU_PAT (1 << CPU_PAT_BIT) -#define CPU_VMX (1 << CPU_VMX_BIT) -#define CPU_CALL (1 << CPU_CALL_BIT) -#define CPU_BASE (1 << CPU_BASE_BIT) -#define CPU_VER (1 << CPU_VER_BIT) -#define CPU_CONF (1 << CPU_CONF_BIT) -#define CPU_SMM (1 << CPU_SMM_BIT) -#define CPU_SVM (1 << CPU_SVM_BIT) -#define CPU_OSVM (1 << CPU_OSVM_BIT) -#define CPU_TSS (1 << CPU_TSS_BIT) -#define CPU_CR (1 << CPU_CR_BIT) -#define CPU_DT (1 << CPU_DT_BIT) - -/* Register file flags */ -enum cpu_file_bit { - CPU_INDEX_BIT, /* index */ - CPU_VALUE_BIT, /* value */ -}; - -#define CPU_FILE_VALUE (1 << CPU_VALUE_BIT) - -#define MAX_CPU_FILES 512 - -struct cpu_private { - unsigned cpu; - unsigned type; - unsigned reg; - unsigned file; -}; - -struct cpu_debug_base { - char *name; /* Register name */ - unsigned flag; /* Register flag */ - unsigned write; /* Register write flag */ -}; - -/* - * Currently it looks similar to cpu_debug_base but once we add more files - * cpu_file_base will go in different direction - */ -struct cpu_file_base { - char *name; /* Register file name */ - unsigned flag; /* Register file flag */ - unsigned write; /* Register write flag */ -}; - -struct cpu_cpuX_base { - struct dentry *dentry; /* Register dentry */ - int init; /* Register index file */ -}; - -struct cpu_debug_range { - unsigned min; /* Register range min */ - unsigned max; /* Register range max */ - unsigned flag; /* Supported flags */ -}; - -#endif /* _ASM_X86_CPU_DEBUG_H */ diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h index 456a304b8172..8ac9d9ae129e 100644 --- a/arch/x86/include/asm/elf.h +++ b/arch/x86/include/asm/elf.h @@ -197,14 +197,8 @@ do { \ set_fs(USER_DS); \ } while (0) -#define COMPAT_SET_PERSONALITY(ex) \ -do { \ - if (test_thread_flag(TIF_IA32)) \ - clear_thread_flag(TIF_ABI_PENDING); \ - else \ - set_thread_flag(TIF_ABI_PENDING); \ - current->personality |= force_personality32; \ -} while (0) +void set_personality_ia32(void); +#define COMPAT_SET_PERSONALITY(ex) set_personality_ia32() #define COMPAT_ELF_PLATFORM ("i686") diff --git a/arch/x86/include/asm/hpet.h b/arch/x86/include/asm/hpet.h index 1c22cb05ad6a..3251e2316a7a 100644 --- a/arch/x86/include/asm/hpet.h +++ b/arch/x86/include/asm/hpet.h @@ -66,6 +66,7 @@ extern unsigned long hpet_address; extern unsigned long force_hpet_address; extern int hpet_force_user; +extern u8 hpet_msi_disable; extern int is_hpet_enabled(void); extern int hpet_enable(void); extern void hpet_disable(void); diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h index 5b21f0ec3df2..6e90a049c960 100644 --- a/arch/x86/include/asm/irq_vectors.h +++ b/arch/x86/include/asm/irq_vectors.h @@ -113,7 +113,7 @@ */ #define LOCAL_PENDING_VECTOR 0xec -#define UV_BAU_MESSAGE 0xec +#define UV_BAU_MESSAGE 0xea /* * Self IPI vector for machine checks diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h index b7ed2c423116..7c18e1230f54 100644 --- a/arch/x86/include/asm/kvm_emulate.h +++ b/arch/x86/include/asm/kvm_emulate.h @@ -129,7 +129,7 @@ struct decode_cache { u8 seg_override; unsigned int d; unsigned long regs[NR_VCPU_REGS]; - unsigned long eip; + unsigned long eip, eip_orig; /* modrm */ u8 modrm; u8 modrm_mod; diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index d83892226f73..d759a1f55084 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -412,6 +412,7 @@ struct kvm_arch{ unsigned long irq_sources_bitmap; unsigned long irq_states[KVM_IOAPIC_NUM_PINS]; u64 vm_init_tsc; + s64 kvmclock_offset; }; struct kvm_vm_stat { diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index f1363b72364f..a47902354261 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -214,5 +214,11 @@ void intel_init_thermal(struct cpuinfo_x86 *c); void mce_log_therm_throt_event(__u64 status); +#ifdef CONFIG_X86_THERMAL_VECTOR +extern void mcheck_intel_therm_init(void); +#else +static inline void mcheck_intel_therm_init(void) { } +#endif + #endif /* __KERNEL__ */ #endif /* _ASM_X86_MCE_H */ diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h index 7e2b6ba962ff..0e3e728a23f6 100644 --- a/arch/x86/include/asm/msr.h +++ b/arch/x86/include/asm/msr.h @@ -27,6 +27,18 @@ struct msr { }; }; +struct msr_info { + u32 msr_no; + struct msr reg; + struct msr *msrs; + int err; +}; + +struct msr_regs_info { + u32 *regs; + int err; +}; + static inline unsigned long long native_read_tscp(unsigned int *aux) { unsigned long low, high; @@ -244,11 +256,14 @@ do { \ #define write_rdtscp_aux(val) wrmsr(0xc0000103, (val), 0) +struct msr *msrs_alloc(void); +void msrs_free(struct msr *msrs); + #ifdef CONFIG_SMP int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h); int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h); -void rdmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs); -void wrmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs); +void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs); +void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs); int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h); int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h); int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]); diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index c9786480f0fe..13b1885fe276 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -180,7 +180,7 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx) { /* ecx is often an input as well as an output. */ - asm("cpuid" + asm volatile("cpuid" : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h index 72a6dcd1299b..77c1184bee43 100644 --- a/arch/x86/include/asm/sys_ia32.h +++ b/arch/x86/include/asm/sys_ia32.h @@ -62,9 +62,6 @@ asmlinkage long sys32_pwrite(unsigned int, char __user *, u32, u32, u32); asmlinkage long sys32_personality(unsigned long); asmlinkage long sys32_sendfile(int, int, compat_off_t __user *, s32); -asmlinkage long sys32_mmap2(unsigned long, unsigned long, unsigned long, - unsigned long, unsigned long, unsigned long); - struct oldold_utsname; struct old_utsname; asmlinkage long sys32_olduname(struct oldold_utsname __user *); diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h index 372b76edd63f..1bb6e395881c 100644 --- a/arch/x86/include/asm/syscalls.h +++ b/arch/x86/include/asm/syscalls.h @@ -55,8 +55,6 @@ struct sel_arg_struct; struct oldold_utsname; struct old_utsname; -asmlinkage long sys_mmap2(unsigned long, unsigned long, unsigned long, - unsigned long, unsigned long, unsigned long); asmlinkage int old_mmap(struct mmap_arg_struct __user *); asmlinkage int old_select(struct sel_arg_struct __user *); asmlinkage int sys_ipc(uint, int, int, int, void __user *, long); diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index d27d0a2fec4c..19c3ce4aaea7 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -86,7 +86,6 @@ struct thread_info { #define TIF_NOTSC 16 /* TSC is not accessible in userland */ #define TIF_IA32 17 /* 32bit process */ #define TIF_FORK 18 /* ret_from_fork */ -#define TIF_ABI_PENDING 19 #define TIF_MEMDIE 20 #define TIF_DEBUG 21 /* uses debug registers */ #define TIF_IO_BITMAP 22 /* uses I/O bitmap */ @@ -110,7 +109,6 @@ struct thread_info { #define _TIF_NOTSC (1 << TIF_NOTSC) #define _TIF_IA32 (1 << TIF_IA32) #define _TIF_FORK (1 << TIF_FORK) -#define _TIF_ABI_PENDING (1 << TIF_ABI_PENDING) #define _TIF_DEBUG (1 << TIF_DEBUG) #define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP) #define _TIF_FREEZE (1 << TIF_FREEZE) diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h index d1414af98559..e90a8a969765 100644 --- a/arch/x86/include/asm/uv/uv_hub.h +++ b/arch/x86/include/asm/uv/uv_hub.h @@ -31,20 +31,20 @@ * contiguous (although various IO spaces may punch holes in * it).. * - * N - Number of bits in the node portion of a socket physical - * address. + * N - Number of bits in the node portion of a socket physical + * address. * - * NASID - network ID of a router, Mbrick or Cbrick. Nasid values of - * routers always have low bit of 1, C/MBricks have low bit - * equal to 0. Most addressing macros that target UV hub chips - * right shift the NASID by 1 to exclude the always-zero bit. - * NASIDs contain up to 15 bits. + * NASID - network ID of a router, Mbrick or Cbrick. Nasid values of + * routers always have low bit of 1, C/MBricks have low bit + * equal to 0. Most addressing macros that target UV hub chips + * right shift the NASID by 1 to exclude the always-zero bit. + * NASIDs contain up to 15 bits. * * GNODE - NASID right shifted by 1 bit. Most mmrs contain gnodes instead * of nasids. * - * PNODE - the low N bits of the GNODE. The PNODE is the most useful variant - * of the nasid for socket usage. + * PNODE - the low N bits of the GNODE. The PNODE is the most useful variant + * of the nasid for socket usage. * * * NumaLink Global Physical Address Format: @@ -71,12 +71,12 @@ * * * APICID format - * NOTE!!!!!! This is the current format of the APICID. However, code - * should assume that this will change in the future. Use functions - * in this file for all APICID bit manipulations and conversion. + * NOTE!!!!!! This is the current format of the APICID. However, code + * should assume that this will change in the future. Use functions + * in this file for all APICID bit manipulations and conversion. * - * 1111110000000000 - * 5432109876543210 + * 1111110000000000 + * 5432109876543210 * pppppppppplc0cch * sssssssssss * @@ -89,9 +89,9 @@ * Note: Processor only supports 12 bits in the APICID register. The ACPI * tables hold all 16 bits. Software needs to be aware of this. * - * Unless otherwise specified, all references to APICID refer to - * the FULL value contained in ACPI tables, not the subset in the - * processor APICID register. + * Unless otherwise specified, all references to APICID refer to + * the FULL value contained in ACPI tables, not the subset in the + * processor APICID register. */ @@ -151,16 +151,16 @@ struct uv_hub_info_s { }; DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info); -#define uv_hub_info (&__get_cpu_var(__uv_hub_info)) +#define uv_hub_info (&__get_cpu_var(__uv_hub_info)) #define uv_cpu_hub_info(cpu) (&per_cpu(__uv_hub_info, cpu)) /* * Local & Global MMR space macros. - * Note: macros are intended to be used ONLY by inline functions - * in this file - not by other kernel code. - * n - NASID (full 15-bit global nasid) - * g - GNODE (full 15-bit global nasid, right shifted 1) - * p - PNODE (local part of nsids, right shifted 1) + * Note: macros are intended to be used ONLY by inline functions + * in this file - not by other kernel code. + * n - NASID (full 15-bit global nasid) + * g - GNODE (full 15-bit global nasid, right shifted 1) + * p - PNODE (local part of nsids, right shifted 1) */ #define UV_NASID_TO_PNODE(n) (((n) >> 1) & uv_hub_info->pnode_mask) #define UV_PNODE_TO_GNODE(p) ((p) |uv_hub_info->gnode_extra) @@ -213,8 +213,8 @@ DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info); /* * Macros for converting between kernel virtual addresses, socket local physical * addresses, and UV global physical addresses. - * Note: use the standard __pa() & __va() macros for converting - * between socket virtual and socket physical addresses. + * Note: use the standard __pa() & __va() macros for converting + * between socket virtual and socket physical addresses. */ /* socket phys RAM --> UV global physical address */ @@ -265,21 +265,18 @@ static inline int uv_apicid_to_pnode(int apicid) * Access global MMRs using the low memory MMR32 space. This region supports * faster MMR access but not all MMRs are accessible in this space. */ -static inline unsigned long *uv_global_mmr32_address(int pnode, - unsigned long offset) +static inline unsigned long *uv_global_mmr32_address(int pnode, unsigned long offset) { return __va(UV_GLOBAL_MMR32_BASE | UV_GLOBAL_MMR32_PNODE_BITS(pnode) | offset); } -static inline void uv_write_global_mmr32(int pnode, unsigned long offset, - unsigned long val) +static inline void uv_write_global_mmr32(int pnode, unsigned long offset, unsigned long val) { writeq(val, uv_global_mmr32_address(pnode, offset)); } -static inline unsigned long uv_read_global_mmr32(int pnode, - unsigned long offset) +static inline unsigned long uv_read_global_mmr32(int pnode, unsigned long offset) { return readq(uv_global_mmr32_address(pnode, offset)); } @@ -288,25 +285,32 @@ static inline unsigned long uv_read_global_mmr32(int pnode, * Access Global MMR space using the MMR space located at the top of physical * memory. */ -static inline unsigned long *uv_global_mmr64_address(int pnode, - unsigned long offset) +static inline unsigned long *uv_global_mmr64_address(int pnode, unsigned long offset) { return __va(UV_GLOBAL_MMR64_BASE | UV_GLOBAL_MMR64_PNODE_BITS(pnode) | offset); } -static inline void uv_write_global_mmr64(int pnode, unsigned long offset, - unsigned long val) +static inline void uv_write_global_mmr64(int pnode, unsigned long offset, unsigned long val) { writeq(val, uv_global_mmr64_address(pnode, offset)); } -static inline unsigned long uv_read_global_mmr64(int pnode, - unsigned long offset) +static inline unsigned long uv_read_global_mmr64(int pnode, unsigned long offset) { return readq(uv_global_mmr64_address(pnode, offset)); } +static inline void uv_write_global_mmr8(int pnode, unsigned long offset, unsigned char val) +{ + writeb(val, uv_global_mmr64_address(pnode, offset)); +} + +static inline unsigned char uv_read_global_mmr8(int pnode, unsigned long offset) +{ + return readb(uv_global_mmr64_address(pnode, offset)); +} + /* * Access hub local MMRs. Faster than using global space but only local MMRs * are accessible. @@ -426,11 +430,17 @@ static inline void uv_set_scir_bits(unsigned char value) } } +static inline unsigned long uv_scir_offset(int apicid) +{ + return SCIR_LOCAL_MMR_BASE | (apicid & 0x3f); +} + static inline void uv_set_cpu_scir_bits(int cpu, unsigned char value) { if (uv_cpu_hub_info(cpu)->scir.state != value) { + uv_write_global_mmr8(uv_cpu_to_pnode(cpu), + uv_cpu_hub_info(cpu)->scir.offset, value); uv_cpu_hub_info(cpu)->scir.state = value; - uv_write_local_mmr8(uv_cpu_hub_info(cpu)->scir.offset, value); } } diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c index 59cdfa4686b2..2e837f5080fe 100644 --- a/arch/x86/kernel/acpi/cstate.c +++ b/arch/x86/kernel/acpi/cstate.c @@ -48,7 +48,7 @@ void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags, * P4, Core and beyond CPUs */ if (c->x86_vendor == X86_VENDOR_INTEL && - (c->x86 > 0xf || (c->x86 == 6 && c->x86_model >= 14))) + (c->x86 > 0xf || (c->x86 == 6 && c->x86_model >= 0x0f))) flags->bm_control = 0; } EXPORT_SYMBOL(acpi_processor_power_init_bm_check); diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 0285521e0a99..23fc9fe1625f 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -540,7 +540,7 @@ static void flush_all_devices_for_iommu(struct amd_iommu *iommu) static void flush_devices_by_domain(struct protection_domain *domain) { struct amd_iommu *iommu; - int i; + unsigned long i; for (i = 0; i <= amd_iommu_last_bdf; ++i) { if ((domain == NULL && amd_iommu_pd_table[i] == NULL) || @@ -1230,9 +1230,10 @@ static void __detach_device(struct protection_domain *domain, u16 devid) /* * If we run in passthrough mode the device must be assigned to the - * passthrough domain if it is detached from any other domain + * passthrough domain if it is detached from any other domain. + * Make sure we can deassign from the pt_domain itself. */ - if (iommu_pass_through) { + if (iommu_pass_through && domain != pt_domain) { struct amd_iommu *iommu = amd_iommu_rlookup_table[devid]; __attach_device(iommu, pt_domain, devid); } @@ -2047,10 +2048,10 @@ static void prealloc_protection_domains(void) struct pci_dev *dev = NULL; struct dma_ops_domain *dma_dom; struct amd_iommu *iommu; - u16 devid; + u16 devid, __devid; while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { - devid = calc_devid(dev->bus->number, dev->devfn); + __devid = devid = calc_devid(dev->bus->number, dev->devfn); if (devid > amd_iommu_last_bdf) continue; devid = amd_iommu_alias_table[devid]; @@ -2065,6 +2066,10 @@ static void prealloc_protection_domains(void) init_unity_mappings_for_device(dma_dom, devid); dma_dom->target_dev = devid; + attach_device(iommu, &dma_dom->domain, devid); + if (__devid != devid) + attach_device(iommu, &dma_dom->domain, __devid); + list_add_tail(&dma_dom->list, &iommu_pd_list); } } @@ -2079,6 +2084,11 @@ static struct dma_map_ops amd_iommu_dma_ops = { .dma_supported = amd_iommu_dma_supported, }; +void __init amd_iommu_init_api(void) +{ + register_iommu(&amd_iommu_ops); +} + /* * The function which clues the AMD IOMMU driver into dma_ops. */ @@ -2120,8 +2130,6 @@ int __init amd_iommu_init_dma_ops(void) /* Make the driver finally visible to the drivers */ dma_ops = &amd_iommu_dma_ops; - register_iommu(&amd_iommu_ops); - bus_register_notifier(&pci_bus_type, &device_nb); amd_iommu_stats_init(); diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index c20001e4f556..362ab88c73ac 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -136,6 +136,11 @@ LIST_HEAD(amd_iommu_list); /* list of all AMD IOMMUs in the system */ /* + * Set to true if ACPI table parsing and hardware intialization went properly + */ +static bool amd_iommu_initialized; + +/* * Pointer to the device table which is shared by all AMD IOMMUs * it is indexed by the PCI device id or the HT unit id and contains * information about the domain the device belongs to as well as the @@ -913,6 +918,8 @@ static int __init init_iommu_all(struct acpi_table_header *table) } WARN_ON(p != end); + amd_iommu_initialized = true; + return 0; } @@ -925,7 +932,7 @@ static int __init init_iommu_all(struct acpi_table_header *table) * ****************************************************************************/ -static int __init iommu_setup_msi(struct amd_iommu *iommu) +static int iommu_setup_msi(struct amd_iommu *iommu) { int r; @@ -1263,6 +1270,9 @@ int __init amd_iommu_init(void) if (acpi_table_parse("IVRS", init_iommu_all) != 0) goto free; + if (!amd_iommu_initialized) + goto free; + if (acpi_table_parse("IVRS", init_memory_definitions) != 0) goto free; @@ -1278,9 +1288,12 @@ int __init amd_iommu_init(void) ret = amd_iommu_init_passthrough(); else ret = amd_iommu_init_dma_ops(); + if (ret) goto free; + amd_iommu_init_api(); + enable_iommus(); if (iommu_pass_through) diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index 894aa97f0717..c86dbcf39e8d 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -246,7 +246,7 @@ static int modern_apic(void) */ static void native_apic_write_dummy(u32 reg, u32 v) { - WARN_ON_ONCE((cpu_has_apic || !disable_apic)); + WARN_ON_ONCE(cpu_has_apic && !disable_apic); } static u32 native_apic_read_dummy(u32 reg) diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c index d0c99abc26c3..873f81f0bbd8 100644 --- a/arch/x86/kernel/apic/apic_flat_64.c +++ b/arch/x86/kernel/apic/apic_flat_64.c @@ -240,6 +240,11 @@ static int physflat_acpi_madt_oem_check(char *oem_id, char *oem_table_id) printk(KERN_DEBUG "system APIC only can use physical flat"); return 1; } + + if (!strncmp(oem_id, "IBM", 3) && !strncmp(oem_table_id, "EXA", 3)) { + printk(KERN_DEBUG "IBM Summit detected, will use apic physical"); + return 1; + } #endif return 0; diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index dc69f28489f5..c107e837ed7d 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3157,6 +3157,7 @@ unsigned int create_irq_nr(unsigned int irq_want, int node) continue; desc_new = move_irq_desc(desc_new, node); + cfg_new = desc_new->chip_data; if (__assign_irq_vector(new, cfg_new, apic->target_cpus()) == 0) irq = new; diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 326c25477d3d..9ee87cfe0859 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -364,13 +364,13 @@ static __init void get_lowmem_redirect(unsigned long *base, unsigned long *size) enum map_type {map_wb, map_uc}; -static __init void map_high(char *id, unsigned long base, int shift, - int max_pnode, enum map_type map_type) +static __init void map_high(char *id, unsigned long base, int pshift, + int bshift, int max_pnode, enum map_type map_type) { unsigned long bytes, paddr; - paddr = base << shift; - bytes = (1UL << shift) * (max_pnode + 1); + paddr = base << pshift; + bytes = (1UL << bshift) * (max_pnode + 1); printk(KERN_INFO "UV: Map %s_HI 0x%lx - 0x%lx\n", id, paddr, paddr + bytes); if (map_type == map_uc) @@ -386,7 +386,7 @@ static __init void map_gru_high(int max_pnode) gru.v = uv_read_local_mmr(UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR); if (gru.s.enable) - map_high("GRU", gru.s.base, shift, max_pnode, map_wb); + map_high("GRU", gru.s.base, shift, shift, max_pnode, map_wb); } static __init void map_mmr_high(int max_pnode) @@ -396,7 +396,7 @@ static __init void map_mmr_high(int max_pnode) mmr.v = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR); if (mmr.s.enable) - map_high("MMR", mmr.s.base, shift, max_pnode, map_uc); + map_high("MMR", mmr.s.base, shift, shift, max_pnode, map_uc); } static __init void map_mmioh_high(int max_pnode) @@ -406,7 +406,8 @@ static __init void map_mmioh_high(int max_pnode) mmioh.v = uv_read_local_mmr(UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR); if (mmioh.s.enable) - map_high("MMIOH", mmioh.s.base, shift, max_pnode, map_uc); + map_high("MMIOH", mmioh.s.base, shift, mmioh.s.m_io, + max_pnode, map_uc); } static __init void uv_rtc_init(void) @@ -607,8 +608,10 @@ void __init uv_system_init(void) uv_rtc_init(); for_each_present_cpu(cpu) { + int apicid = per_cpu(x86_cpu_to_apicid, cpu); + nid = cpu_to_node(cpu); - pnode = uv_apicid_to_pnode(per_cpu(x86_cpu_to_apicid, cpu)); + pnode = uv_apicid_to_pnode(apicid); blade = boot_pnode_to_blade(pnode); lcpu = uv_blade_info[blade].nr_possible_cpus; uv_blade_info[blade].nr_possible_cpus++; @@ -629,15 +632,13 @@ void __init uv_system_init(void) uv_cpu_hub_info(cpu)->gnode_extra = gnode_extra; uv_cpu_hub_info(cpu)->global_mmr_base = mmr_base; uv_cpu_hub_info(cpu)->coherency_domain_number = sn_coherency_id; - uv_cpu_hub_info(cpu)->scir.offset = SCIR_LOCAL_MMR_BASE + lcpu; + uv_cpu_hub_info(cpu)->scir.offset = uv_scir_offset(apicid); uv_node_to_blade[nid] = blade; uv_cpu_to_blade[cpu] = blade; max_pnode = max(pnode, max_pnode); - printk(KERN_DEBUG "UV: cpu %d, apicid 0x%x, pnode %d, nid %d, " - "lcpu %d, blade %d\n", - cpu, per_cpu(x86_cpu_to_apicid, cpu), pnode, nid, - lcpu, blade); + printk(KERN_DEBUG "UV: cpu %d, apicid 0x%x, pnode %d, nid %d, lcpu %d, blade %d\n", + cpu, apicid, pnode, nid, lcpu, blade); } /* Add blade/pnode info for nodes without cpus */ diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index 68537e957a9b..ff502cc59d2f 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -18,8 +18,6 @@ obj-y += vmware.o hypervisor.o sched.o obj-$(CONFIG_X86_32) += bugs.o cmpxchg.o obj-$(CONFIG_X86_64) += bugs_64.o -obj-$(CONFIG_X86_CPU_DEBUG) += cpu_debug.o - obj-$(CONFIG_CPU_SUP_INTEL) += intel.o obj-$(CONFIG_CPU_SUP_AMD) += amd.o obj-$(CONFIG_CPU_SUP_CYRIX_32) += cyrix.o diff --git a/arch/x86/kernel/cpu/cpu_debug.c b/arch/x86/kernel/cpu/cpu_debug.c deleted file mode 100644 index dca325c03999..000000000000 --- a/arch/x86/kernel/cpu/cpu_debug.c +++ /dev/null @@ -1,688 +0,0 @@ -/* - * CPU x86 architecture debug code - * - * Copyright(C) 2009 Jaswinder Singh Rajput - * - * For licencing details see kernel-base/COPYING - */ - -#include <linux/interrupt.h> -#include <linux/compiler.h> -#include <linux/seq_file.h> -#include <linux/debugfs.h> -#include <linux/kprobes.h> -#include <linux/uaccess.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/percpu.h> -#include <linux/signal.h> -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/smp.h> - -#include <asm/cpu_debug.h> -#include <asm/paravirt.h> -#include <asm/system.h> -#include <asm/traps.h> -#include <asm/apic.h> -#include <asm/desc.h> - -static DEFINE_PER_CPU(struct cpu_cpuX_base [CPU_REG_ALL_BIT], cpu_arr); -static DEFINE_PER_CPU(struct cpu_private * [MAX_CPU_FILES], priv_arr); -static DEFINE_PER_CPU(int, cpu_priv_count); - -static DEFINE_MUTEX(cpu_debug_lock); - -static struct dentry *cpu_debugfs_dir; - -static struct cpu_debug_base cpu_base[] = { - { "mc", CPU_MC, 0 }, - { "monitor", CPU_MONITOR, 0 }, - { "time", CPU_TIME, 0 }, - { "pmc", CPU_PMC, 1 }, - { "platform", CPU_PLATFORM, 0 }, - { "apic", CPU_APIC, 0 }, - { "poweron", CPU_POWERON, 0 }, - { "control", CPU_CONTROL, 0 }, - { "features", CPU_FEATURES, 0 }, - { "lastbranch", CPU_LBRANCH, 0 }, - { "bios", CPU_BIOS, 0 }, - { "freq", CPU_FREQ, 0 }, - { "mtrr", CPU_MTRR, 0 }, - { "perf", CPU_PERF, 0 }, - { "cache", CPU_CACHE, 0 }, - { "sysenter", CPU_SYSENTER, 0 }, - { "therm", CPU_THERM, 0 }, - { "misc", CPU_MISC, 0 }, - { "debug", CPU_DEBUG, 0 }, - { "pat", CPU_PAT, 0 }, - { "vmx", CPU_VMX, 0 }, - { "call", CPU_CALL, 0 }, - { "base", CPU_BASE, 0 }, - { "ver", CPU_VER, 0 }, - { "conf", CPU_CONF, 0 }, - { "smm", CPU_SMM, 0 }, - { "svm", CPU_SVM, 0 }, - { "osvm", CPU_OSVM, 0 }, - { "tss", CPU_TSS, 0 }, - { "cr", CPU_CR, 0 }, - { "dt", CPU_DT, 0 }, - { "registers", CPU_REG_ALL, 0 }, -}; - -static struct cpu_file_base cpu_file[] = { - { "index", CPU_REG_ALL, 0 }, - { "value", CPU_REG_ALL, 1 }, -}; - -/* CPU Registers Range */ -static struct cpu_debug_range cpu_reg_range[] = { - { 0x00000000, 0x00000001, CPU_MC, }, - { 0x00000006, 0x00000007, CPU_MONITOR, }, - { 0x00000010, 0x00000010, CPU_TIME, }, - { 0x00000011, 0x00000013, CPU_PMC, }, - { 0x00000017, 0x00000017, CPU_PLATFORM, }, - { 0x0000001B, 0x0000001B, CPU_APIC, }, - { 0x0000002A, 0x0000002B, CPU_POWERON, }, - { 0x0000002C, 0x0000002C, CPU_FREQ, }, - { 0x0000003A, 0x0000003A, CPU_CONTROL, }, - { 0x00000040, 0x00000047, CPU_LBRANCH, }, - { 0x00000060, 0x00000067, CPU_LBRANCH, }, - { 0x00000079, 0x00000079, CPU_BIOS, }, - { 0x00000088, 0x0000008A, CPU_CACHE, }, - { 0x0000008B, 0x0000008B, CPU_BIOS, }, - { 0x0000009B, 0x0000009B, CPU_MONITOR, }, - { 0x000000C1, 0x000000C4, CPU_PMC, }, - { 0x000000CD, 0x000000CD, CPU_FREQ, }, - { 0x000000E7, 0x000000E8, CPU_PERF, }, - { 0x000000FE, 0x000000FE, CPU_MTRR, }, - - { 0x00000116, 0x0000011E, CPU_CACHE, }, - { 0x00000174, 0x00000176, CPU_SYSENTER, }, - { 0x00000179, 0x0000017B, CPU_MC, }, - { 0x00000186, 0x00000189, CPU_PMC, }, - { 0x00000198, 0x00000199, CPU_PERF, }, - { 0x0000019A, 0x0000019A, CPU_TIME, }, - { 0x0000019B, 0x0000019D, CPU_THERM, }, - { 0x000001A0, 0x000001A0, CPU_MISC, }, - { 0x000001C9, 0x000001C9, CPU_LBRANCH, }, - { 0x000001D7, 0x000001D8, CPU_LBRANCH, }, - { 0x000001D9, 0x000001D9, CPU_DEBUG, }, - { 0x000001DA, 0x000001E0, CPU_LBRANCH, }, - - { 0x00000200, 0x0000020F, CPU_MTRR, }, - { 0x00000250, 0x00000250, CPU_MTRR, }, - { 0x00000258, 0x00000259, CPU_MTRR, }, - { 0x00000268, 0x0000026F, CPU_MTRR, }, - { 0x00000277, 0x00000277, CPU_PAT, }, - { 0x000002FF, 0x000002FF, CPU_MTRR, }, - - { 0x00000300, 0x00000311, CPU_PMC, }, - { 0x00000345, 0x00000345, CPU_PMC, }, - { 0x00000360, 0x00000371, CPU_PMC, }, - { 0x0000038D, 0x00000390, CPU_PMC, }, - { 0x000003A0, 0x000003BE, CPU_PMC, }, - { 0x000003C0, 0x000003CD, CPU_PMC, }, - { 0x000003E0, 0x000003E1, CPU_PMC, }, - { 0x000003F0, 0x000003F2, CPU_PMC, }, - - { 0x00000400, 0x00000417, CPU_MC, }, - { 0x00000480, 0x0000048B, CPU_VMX, }, - - { 0x00000600, 0x00000600, CPU_DEBUG, }, - { 0x00000680, 0x0000068F, CPU_LBRANCH, }, - { 0x000006C0, 0x000006CF, CPU_LBRANCH, }, - - { 0x000107CC, 0x000107D3, CPU_PMC, }, - - { 0xC0000080, 0xC0000080, CPU_FEATURES, }, - { 0xC0000081, 0xC0000084, CPU_CALL, }, - { 0xC0000100, 0xC0000102, CPU_BASE, }, - { 0xC0000103, 0xC0000103, CPU_TIME, }, - - { 0xC0010000, 0xC0010007, CPU_PMC, }, - { 0xC0010010, 0xC0010010, CPU_CONF, }, - { 0xC0010015, 0xC0010015, CPU_CONF, }, - { 0xC0010016, 0xC001001A, CPU_MTRR, }, - { 0xC001001D, 0xC001001D, CPU_MTRR, }, - { 0xC001001F, 0xC001001F, CPU_CONF, }, - { 0xC0010030, 0xC0010035, CPU_BIOS, }, - { 0xC0010044, 0xC0010048, CPU_MC, }, - { 0xC0010050, 0xC0010056, CPU_SMM, }, - { 0xC0010058, 0xC0010058, CPU_CONF, }, - { 0xC0010060, 0xC0010060, CPU_CACHE, }, - { 0xC0010061, 0xC0010068, CPU_SMM, }, - { 0xC0010069, 0xC001006B, CPU_SMM, }, - { 0xC0010070, 0xC0010071, CPU_SMM, }, - { 0xC0010111, 0xC0010113, CPU_SMM, }, - { 0xC0010114, 0xC0010118, CPU_SVM, }, - { 0xC0010140, 0xC0010141, CPU_OSVM, }, - { 0xC0011022, 0xC0011023, CPU_CONF, }, -}; - -static int is_typeflag_valid(unsigned cpu, unsigned flag) -{ - int i; - - /* Standard Registers should be always valid */ - if (flag >= CPU_TSS) - return 1; - - for (i = 0; i < ARRAY_SIZE(cpu_reg_range); i++) { - if (cpu_reg_range[i].flag == flag) - return 1; - } - - /* Invalid */ - return 0; -} - -static unsigned get_cpu_range(unsigned cpu, unsigned *min, unsigned *max, - int index, unsigned flag) -{ - if (cpu_reg_range[index].flag == flag) { - *min = cpu_reg_range[index].min; - *max = cpu_reg_range[index].max; - } else - *max = 0; - - return *max; -} - -/* This function can also be called with seq = NULL for printk */ -static void print_cpu_data(struct seq_file *seq, unsigned type, - u32 low, u32 high) -{ - struct cpu_private *priv; - u64 val = high; - - if (seq) { - priv = seq->private; - if (priv->file) { - val = (val << 32) | low; - seq_printf(seq, "0x%llx\n", val); - } else - seq_printf(seq, " %08x: %08x_%08x\n", - type, high, low); - } else - printk(KERN_INFO " %08x: %08x_%08x\n", type, high, low); -} - -/* This function can also be called with seq = NULL for printk */ -static void print_msr(struct seq_file *seq, unsigned cpu, unsigned flag) -{ - unsigned msr, msr_min, msr_max; - struct cpu_private *priv; - u32 low, high; - int i; - - if (seq) { - priv = seq->private; - if (priv->file) { - if (!rdmsr_safe_on_cpu(priv->cpu, priv->reg, - &low, &high)) - print_cpu_data(seq, priv->reg, low, high); - return; - } - } - - for (i = 0; i < ARRAY_SIZE(cpu_reg_range); i++) { - if (!get_cpu_range(cpu, &msr_min, &msr_max, i, flag)) - continue; - - for (msr = msr_min; msr <= msr_max; msr++) { - if (rdmsr_safe_on_cpu(cpu, msr, &low, &high)) - continue; - print_cpu_data(seq, msr, low, high); - } - } -} - -static void print_tss(void *arg) -{ - struct pt_regs *regs = task_pt_regs(current); - struct seq_file *seq = arg; - unsigned int seg; - - seq_printf(seq, " RAX\t: %016lx\n", regs->ax); - seq_printf(seq, " RBX\t: %016lx\n", regs->bx); - seq_printf(seq, " RCX\t: %016lx\n", regs->cx); - seq_printf(seq, " RDX\t: %016lx\n", regs->dx); - - seq_printf(seq, " RSI\t: %016lx\n", regs->si); - seq_printf(seq, " RDI\t: %016lx\n", regs->di); - seq_printf(seq, " RBP\t: %016lx\n", regs->bp); - seq_printf(seq, " ESP\t: %016lx\n", regs->sp); - -#ifdef CONFIG_X86_64 - seq_printf(seq, " R08\t: %016lx\n", regs->r8); - seq_printf(seq, " R09\t: %016lx\n", regs->r9); - seq_printf(seq, " R10\t: %016lx\n", regs->r10); - seq_printf(seq, " R11\t: %016lx\n", regs->r11); - seq_printf(seq, " R12\t: %016lx\n", regs->r12); - seq_printf(seq, " R13\t: %016lx\n", regs->r13); - seq_printf(seq, " R14\t: %016lx\n", regs->r14); - seq_printf(seq, " R15\t: %016lx\n", regs->r15); -#endif - - asm("movl %%cs,%0" : "=r" (seg)); - seq_printf(seq, " CS\t: %04x\n", seg); - asm("movl %%ds,%0" : "=r" (seg)); - seq_printf(seq, " DS\t: %04x\n", seg); - seq_printf(seq, " SS\t: %04lx\n", regs->ss & 0xffff); - asm("movl %%es,%0" : "=r" (seg)); - seq_printf(seq, " ES\t: %04x\n", seg); - asm("movl %%fs,%0" : "=r" (seg)); - seq_printf(seq, " FS\t: %04x\n", seg); - asm("movl %%gs,%0" : "=r" (seg)); - seq_printf(seq, " GS\t: %04x\n", seg); - - seq_printf(seq, " EFLAGS\t: %016lx\n", regs->flags); - - seq_printf(seq, " EIP\t: %016lx\n", regs->ip); -} - -static void print_cr(void *arg) -{ - struct seq_file *seq = arg; - - seq_printf(seq, " cr0\t: %016lx\n", read_cr0()); - seq_printf(seq, " cr2\t: %016lx\n", read_cr2()); - seq_printf(seq, " cr3\t: %016lx\n", read_cr3()); - seq_printf(seq, " cr4\t: %016lx\n", read_cr4_safe()); -#ifdef CONFIG_X86_64 - seq_printf(seq, " cr8\t: %016lx\n", read_cr8()); -#endif -} - -static void print_desc_ptr(char *str, struct seq_file *seq, struct desc_ptr dt) -{ - seq_printf(seq, " %s\t: %016llx\n", str, (u64)(dt.address | dt.size)); -} - -static void print_dt(void *seq) -{ - struct desc_ptr dt; - unsigned long ldt; - - /* IDT */ - store_idt((struct desc_ptr *)&dt); - print_desc_ptr("IDT", seq, dt); - - /* GDT */ - store_gdt((struct desc_ptr *)&dt); - print_desc_ptr("GDT", seq, dt); - - /* LDT */ - store_ldt(ldt); - seq_printf(seq, " LDT\t: %016lx\n", ldt); - - /* TR */ - store_tr(ldt); - seq_printf(seq, " TR\t: %016lx\n", ldt); -} - -static void print_dr(void *arg) -{ - struct seq_file *seq = arg; - unsigned long dr; - int i; - - for (i = 0; i < 8; i++) { - /* Ignore db4, db5 */ - if ((i == 4) || (i == 5)) - continue; - get_debugreg(dr, i); - seq_printf(seq, " dr%d\t: %016lx\n", i, dr); - } - - seq_printf(seq, "\n MSR\t:\n"); -} - -static void print_apic(void *arg) -{ - struct seq_file *seq = arg; - -#ifdef CONFIG_X86_LOCAL_APIC - seq_printf(seq, " LAPIC\t:\n"); - seq_printf(seq, " ID\t\t: %08x\n", apic_read(APIC_ID) >> 24); - seq_printf(seq, " LVR\t\t: %08x\n", apic_read(APIC_LVR)); - seq_printf(seq, " TASKPRI\t: %08x\n", apic_read(APIC_TASKPRI)); - seq_printf(seq, " ARBPRI\t\t: %08x\n", apic_read(APIC_ARBPRI)); - seq_printf(seq, " PROCPRI\t: %08x\n", apic_read(APIC_PROCPRI)); - seq_printf(seq, " LDR\t\t: %08x\n", apic_read(APIC_LDR)); - seq_printf(seq, " DFR\t\t: %08x\n", apic_read(APIC_DFR)); - seq_printf(seq, " SPIV\t\t: %08x\n", apic_read(APIC_SPIV)); - seq_printf(seq, " ISR\t\t: %08x\n", apic_read(APIC_ISR)); - seq_printf(seq, " ESR\t\t: %08x\n", apic_read(APIC_ESR)); - seq_printf(seq, " ICR\t\t: %08x\n", apic_read(APIC_ICR)); - seq_printf(seq, " ICR2\t\t: %08x\n", apic_read(APIC_ICR2)); - seq_printf(seq, " LVTT\t\t: %08x\n", apic_read(APIC_LVTT)); - seq_printf(seq, " LVTTHMR\t: %08x\n", apic_read(APIC_LVTTHMR)); - seq_printf(seq, " LVTPC\t\t: %08x\n", apic_read(APIC_LVTPC)); - seq_printf(seq, " LVT0\t\t: %08x\n", apic_read(APIC_LVT0)); - seq_printf(seq, " LVT1\t\t: %08x\n", apic_read(APIC_LVT1)); - seq_printf(seq, " LVTERR\t\t: %08x\n", apic_read(APIC_LVTERR)); - seq_printf(seq, " TMICT\t\t: %08x\n", apic_read(APIC_TMICT)); - seq_printf(seq, " TMCCT\t\t: %08x\n", apic_read(APIC_TMCCT)); - seq_printf(seq, " TDCR\t\t: %08x\n", apic_read(APIC_TDCR)); - if (boot_cpu_has(X86_FEATURE_EXTAPIC)) { - unsigned int i, v, maxeilvt; - - v = apic_read(APIC_EFEAT); - maxeilvt = (v >> 16) & 0xff; - seq_printf(seq, " EFEAT\t\t: %08x\n", v); - seq_printf(seq, " ECTRL\t\t: %08x\n", apic_read(APIC_ECTRL)); - - for (i = 0; i < maxeilvt; i++) { - v = apic_read(APIC_EILVTn(i)); - seq_printf(seq, " EILVT%d\t\t: %08x\n", i, v); - } - } -#endif /* CONFIG_X86_LOCAL_APIC */ - seq_printf(seq, "\n MSR\t:\n"); -} - -static int cpu_seq_show(struct seq_file *seq, void *v) -{ - struct cpu_private *priv = seq->private; - - if (priv == NULL) - return -EINVAL; - - switch (cpu_base[priv->type].flag) { - case CPU_TSS: - smp_call_function_single(priv->cpu, print_tss, seq, 1); - break; - case CPU_CR: - smp_call_function_single(priv->cpu, print_cr, seq, 1); - break; - case CPU_DT: - smp_call_function_single(priv->cpu, print_dt, seq, 1); - break; - case CPU_DEBUG: - if (priv->file == CPU_INDEX_BIT) - smp_call_function_single(priv->cpu, print_dr, seq, 1); - print_msr(seq, priv->cpu, cpu_base[priv->type].flag); - break; - case CPU_APIC: - if (priv->file == CPU_INDEX_BIT) - smp_call_function_single(priv->cpu, print_apic, seq, 1); - print_msr(seq, priv->cpu, cpu_base[priv->type].flag); - break; - - default: - print_msr(seq, priv->cpu, cpu_base[priv->type].flag); - break; - } - seq_printf(seq, "\n"); - - return 0; -} - -static void *cpu_seq_start(struct seq_file *seq, loff_t *pos) -{ - if (*pos == 0) /* One time is enough ;-) */ - return seq; - - return NULL; -} - -static void *cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos) -{ - (*pos)++; - - return cpu_seq_start(seq, pos); -} - -static void cpu_seq_stop(struct seq_file *seq, void *v) -{ -} - -static const struct seq_operations cpu_seq_ops = { - .start = cpu_seq_start, - .next = cpu_seq_next, - .stop = cpu_seq_stop, - .show = cpu_seq_show, -}; - -static int cpu_seq_open(struct inode *inode, struct file *file) -{ - struct cpu_private *priv = inode->i_private; - struct seq_file *seq; - int err; - - err = seq_open(file, &cpu_seq_ops); - if (!err) { - seq = file->private_data; - seq->private = priv; - } - - return err; -} - -static int write_msr(struct cpu_private *priv, u64 val) -{ - u32 low, high; - - high = (val >> 32) & 0xffffffff; - low = val & 0xffffffff; - - if (!wrmsr_safe_on_cpu(priv->cpu, priv->reg, low, high)) - return 0; - - return -EPERM; -} - -static int write_cpu_register(struct cpu_private *priv, const char *buf) -{ - int ret = -EPERM; - u64 val; - - ret = strict_strtoull(buf, 0, &val); - if (ret < 0) - return ret; - - /* Supporting only MSRs */ - if (priv->type < CPU_TSS_BIT) - return write_msr(priv, val); - - return ret; -} - -static ssize_t cpu_write(struct file *file, const char __user *ubuf, - size_t count, loff_t *off) -{ - struct seq_file *seq = file->private_data; - struct cpu_private *priv = seq->private; - char buf[19]; - - if ((priv == NULL) || (count >= sizeof(buf))) - return -EINVAL; - - if (copy_from_user(&buf, ubuf, count)) - return -EFAULT; - - buf[count] = 0; - - if ((cpu_base[priv->type].write) && (cpu_file[priv->file].write)) - if (!write_cpu_register(priv, buf)) - return count; - - return -EACCES; -} - -static const struct file_operations cpu_fops = { - .owner = THIS_MODULE, - .open = cpu_seq_open, - .read = seq_read, - .write = cpu_write, - .llseek = seq_lseek, - .release = seq_release, -}; - -static int cpu_create_file(unsigned cpu, unsigned type, unsigned reg, - unsigned file, struct dentry *dentry) -{ - struct cpu_private *priv = NULL; - - /* Already intialized */ - if (file == CPU_INDEX_BIT) - if (per_cpu(cpu_arr[type].init, cpu)) - return 0; - - priv = kzalloc(sizeof(*priv), GFP_KERNEL); - if (priv == NULL) - return -ENOMEM; - - priv->cpu = cpu; - priv->type = type; - priv->reg = reg; - priv->file = file; - mutex_lock(&cpu_debug_lock); - per_cpu(priv_arr[type], cpu) = priv; - per_cpu(cpu_priv_count, cpu)++; - mutex_unlock(&cpu_debug_lock); - - if (file) - debugfs_create_file(cpu_file[file].name, S_IRUGO, - dentry, (void *)priv, &cpu_fops); - else { - debugfs_create_file(cpu_base[type].name, S_IRUGO, - per_cpu(cpu_arr[type].dentry, cpu), - (void *)priv, &cpu_fops); - mutex_lock(&cpu_debug_lock); - per_cpu(cpu_arr[type].init, cpu) = 1; - mutex_unlock(&cpu_debug_lock); - } - - return 0; -} - -static int cpu_init_regfiles(unsigned cpu, unsigned int type, unsigned reg, - struct dentry *dentry) -{ - unsigned file; - int err = 0; - - for (file = 0; file < ARRAY_SIZE(cpu_file); file++) { - err = cpu_create_file(cpu, type, reg, file, dentry); - if (err) - return err; - } - - return err; -} - -static int cpu_init_msr(unsigned cpu, unsigned type, struct dentry *dentry) -{ - struct dentry *cpu_dentry = NULL; - unsigned reg, reg_min, reg_max; - int i, err = 0; - char reg_dir[12]; - u32 low, high; - - for (i = 0; i < ARRAY_SIZE(cpu_reg_range); i++) { - if (!get_cpu_range(cpu, ®_min, ®_max, i, - cpu_base[type].flag)) - continue; - - for (reg = reg_min; reg <= reg_max; reg++) { - if (rdmsr_safe_on_cpu(cpu, reg, &low, &high)) - continue; - - sprintf(reg_dir, "0x%x", reg); - cpu_dentry = debugfs_create_dir(reg_dir, dentry); - err = cpu_init_regfiles(cpu, type, reg, cpu_dentry); - if (err) - return err; - } - } - - return err; -} - -static int cpu_init_allreg(unsigned cpu, struct dentry *dentry) -{ - struct dentry *cpu_dentry = NULL; - unsigned type; - int err = 0; - - for (type = 0; type < ARRAY_SIZE(cpu_base) - 1; type++) { - if (!is_typeflag_valid(cpu, cpu_base[type].flag)) - continue; - cpu_dentry = debugfs_create_dir(cpu_base[type].name, dentry); - per_cpu(cpu_arr[type].dentry, cpu) = cpu_dentry; - - if (type < CPU_TSS_BIT) - err = cpu_init_msr(cpu, type, cpu_dentry); - else - err = cpu_create_file(cpu, type, 0, CPU_INDEX_BIT, - cpu_dentry); - if (err) - return err; - } - - return err; -} - -static int cpu_init_cpu(void) -{ - struct dentry *cpu_dentry = NULL; - struct cpuinfo_x86 *cpui; - char cpu_dir[12]; - unsigned cpu; - int err = 0; - - for (cpu = 0; cpu < nr_cpu_ids; cpu++) { - cpui = &cpu_data(cpu); - if (!cpu_has(cpui, X86_FEATURE_MSR)) - continue; - - sprintf(cpu_dir, "cpu%d", cpu); - cpu_dentry = debugfs_create_dir(cpu_dir, cpu_debugfs_dir); - err = cpu_init_allreg(cpu, cpu_dentry); - - pr_info("cpu%d(%d) debug files %d\n", - cpu, nr_cpu_ids, per_cpu(cpu_priv_count, cpu)); - if (per_cpu(cpu_priv_count, cpu) > MAX_CPU_FILES) { - pr_err("Register files count %d exceeds limit %d\n", - per_cpu(cpu_priv_count, cpu), MAX_CPU_FILES); - per_cpu(cpu_priv_count, cpu) = MAX_CPU_FILES; - err = -ENFILE; - } - if (err) - return err; - } - - return err; -} - -static int __init cpu_debug_init(void) -{ - cpu_debugfs_dir = debugfs_create_dir("cpu", arch_debugfs_dir); - - return cpu_init_cpu(); -} - -static void __exit cpu_debug_exit(void) -{ - int i, cpu; - - if (cpu_debugfs_dir) - debugfs_remove_recursive(cpu_debugfs_dir); - - for (cpu = 0; cpu < nr_cpu_ids; cpu++) - for (i = 0; i < per_cpu(cpu_priv_count, cpu); i++) - kfree(per_cpu(priv_arr[i], cpu)); -} - -module_init(cpu_debug_init); -module_exit(cpu_debug_exit); - -MODULE_AUTHOR("Jaswinder Singh Rajput"); -MODULE_DESCRIPTION("CPU Debug module"); -MODULE_LICENSE("GPL"); diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c index 3f12dabeab52..ab1cd30340f5 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c @@ -1351,6 +1351,7 @@ static int __devexit powernowk8_cpu_exit(struct cpufreq_policy *pol) kfree(data->powernow_table); kfree(data); + per_cpu(powernow_data, pol->cpu) = NULL; return 0; } @@ -1370,7 +1371,7 @@ static unsigned int powernowk8_get(unsigned int cpu) int err; if (!data) - return -EINVAL; + return 0; smp_call_function_single(cpu, query_values_on_cpu, &err, true); if (err) diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 40e1835b35e8..a2a03cf4a489 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -70,7 +70,6 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c) if (c->x86_power & (1 << 8)) { set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC); set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC); - set_cpu_cap(c, X86_FEATURE_TSC_RELIABLE); sched_clock_stable = 1; } diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index 804c40e2bc3e..8178d0352935 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -94,7 +94,7 @@ static const struct _cache_table __cpuinitconst cache_table[] = { 0xd1, LVL_3, 1024 }, /* 4-way set assoc, 64 byte line size */ { 0xd2, LVL_3, 2048 }, /* 4-way set assoc, 64 byte line size */ { 0xd6, LVL_3, 1024 }, /* 8-way set assoc, 64 byte line size */ - { 0xd7, LVL_3, 2038 }, /* 8-way set assoc, 64 byte line size */ + { 0xd7, LVL_3, 2048 }, /* 8-way set assoc, 64 byte line size */ { 0xd8, LVL_3, 4096 }, /* 12-way set assoc, 64 byte line size */ { 0xdc, LVL_3, 2048 }, /* 12-way set assoc, 64 byte line size */ { 0xdd, LVL_3, 4096 }, /* 12-way set assoc, 64 byte line size */ @@ -102,6 +102,9 @@ static const struct _cache_table __cpuinitconst cache_table[] = { 0xe2, LVL_3, 2048 }, /* 16-way set assoc, 64 byte line size */ { 0xe3, LVL_3, 4096 }, /* 16-way set assoc, 64 byte line size */ { 0xe4, LVL_3, 8192 }, /* 16-way set assoc, 64 byte line size */ + { 0xea, LVL_3, 12288 }, /* 24-way set assoc, 64 byte line size */ + { 0xeb, LVL_3, 18432 }, /* 24-way set assoc, 64 byte line size */ + { 0xec, LVL_3, 24576 }, /* 24-way set assoc, 64 byte line size */ { 0x00, 0, 0} }; diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 721a77ca8115..0f16a2bfd6a9 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1374,13 +1374,14 @@ static void mce_init_timer(void) struct timer_list *t = &__get_cpu_var(mce_timer); int *n = &__get_cpu_var(mce_next_interval); + setup_timer(t, mcheck_timer, smp_processor_id()); + if (mce_ignore_ce) return; *n = check_interval * HZ; if (!*n) return; - setup_timer(t, mcheck_timer, smp_processor_id()); t->expires = round_jiffies(jiffies + *n); add_timer_on(t, smp_processor_id()); } @@ -1991,9 +1992,11 @@ mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu) break; case CPU_DOWN_FAILED: case CPU_DOWN_FAILED_FROZEN: - t->expires = round_jiffies(jiffies + + if (!mce_ignore_ce && check_interval) { + t->expires = round_jiffies(jiffies + __get_cpu_var(mce_next_interval)); - add_timer_on(t, cpu); + add_timer_on(t, cpu); + } smp_call_function_single(cpu, mce_reenable_cpu, &action, 1); break; case CPU_POST_DEAD: diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c index b3a1dba75330..687638e655d3 100644 --- a/arch/x86/kernel/cpu/mcheck/therm_throt.c +++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c @@ -49,6 +49,8 @@ static DEFINE_PER_CPU(struct thermal_state, thermal_state); static atomic_t therm_throt_en = ATOMIC_INIT(0); +static u32 lvtthmr_init __read_mostly; + #ifdef CONFIG_SYSFS #define define_therm_throt_sysdev_one_ro(_name) \ static SYSDEV_ATTR(_name, 0444, therm_throt_sysdev_show_##_name, NULL) @@ -254,14 +256,27 @@ asmlinkage void smp_thermal_interrupt(struct pt_regs *regs) ack_APIC_irq(); } +void __init mcheck_intel_therm_init(void) +{ + /* + * This function is only called on boot CPU. Save the init thermal + * LVT value on BSP and use that value to restore APs' thermal LVT + * entry BIOS programmed later + */ + if (cpu_has(&boot_cpu_data, X86_FEATURE_ACPI) && + cpu_has(&boot_cpu_data, X86_FEATURE_ACC)) + lvtthmr_init = apic_read(APIC_LVTTHMR); +} + void intel_init_thermal(struct cpuinfo_x86 *c) { unsigned int cpu = smp_processor_id(); int tm2 = 0; u32 l, h; - /* Thermal monitoring depends on ACPI and clock modulation*/ - if (!cpu_has(c, X86_FEATURE_ACPI) || !cpu_has(c, X86_FEATURE_ACC)) + /* Thermal monitoring depends on APIC, ACPI and clock modulation */ + if (!cpu_has_apic || !cpu_has(c, X86_FEATURE_ACPI) || + !cpu_has(c, X86_FEATURE_ACC)) return; /* @@ -270,7 +285,20 @@ void intel_init_thermal(struct cpuinfo_x86 *c) * since it might be delivered via SMI already: */ rdmsr(MSR_IA32_MISC_ENABLE, l, h); - h = apic_read(APIC_LVTTHMR); + + /* + * The initial value of thermal LVT entries on all APs always reads + * 0x10000 because APs are woken up by BSP issuing INIT-SIPI-SIPI + * sequence to them and LVT registers are reset to 0s except for + * the mask bits which are set to 1s when APs receive INIT IPI. + * Always restore the value that BIOS has programmed on AP based on + * BSP's info we saved since BIOS is always setting the same value + * for all threads/cores + */ + apic_write(APIC_LVTTHMR, lvtthmr_init); + + h = lvtthmr_init; + if ((l & MSR_IA32_MISC_ENABLE_TM1) && (h & APIC_DM_SMI)) { printk(KERN_DEBUG "CPU%d: Thermal monitoring handled by SMI\n", cpu); diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c index fab786f60ed6..898df9719afb 100644 --- a/arch/x86/kernel/cpu/perfctr-watchdog.c +++ b/arch/x86/kernel/cpu/perfctr-watchdog.c @@ -712,7 +712,7 @@ static void probe_nmi_watchdog(void) switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15 && - boot_cpu_data.x86 != 16) + boot_cpu_data.x86 != 16 && boot_cpu_data.x86 != 17) return; wd_ops = &k7_wd_ops; break; diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c index 6a52d4b36a30..0c91110219c0 100644 --- a/arch/x86/kernel/cpuid.c +++ b/arch/x86/kernel/cpuid.c @@ -192,7 +192,8 @@ static int __init cpuid_init(void) int i, err = 0; i = 0; - if (register_chrdev(CPUID_MAJOR, "cpu/cpuid", &cpuid_fops)) { + if (__register_chrdev(CPUID_MAJOR, 0, NR_CPUS, + "cpu/cpuid", &cpuid_fops)) { printk(KERN_ERR "cpuid: unable to get major %d for cpuid\n", CPUID_MAJOR); err = -EBUSY; @@ -221,7 +222,7 @@ out_class: } class_destroy(cpuid_class); out_chrdev: - unregister_chrdev(CPUID_MAJOR, "cpu/cpuid"); + __unregister_chrdev(CPUID_MAJOR, 0, NR_CPUS, "cpu/cpuid"); out: return err; } @@ -233,7 +234,7 @@ static void __exit cpuid_exit(void) for_each_online_cpu(cpu) cpuid_device_destroy(cpu); class_destroy(cpuid_class); - unregister_chrdev(CPUID_MAJOR, "cpu/cpuid"); + __unregister_chrdev(CPUID_MAJOR, 0, NR_CPUS, "cpu/cpuid"); unregister_hotcpu_notifier(&cpuid_class_cpu_notifier); } diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index dedc2bddf7a5..58778736496a 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -33,6 +33,8 @@ * HPET address is set in acpi/boot.c, when an ACPI entry exists */ unsigned long hpet_address; +u8 hpet_msi_disable; + #ifdef CONFIG_PCI_MSI static unsigned long hpet_num_timers; #endif @@ -584,6 +586,9 @@ static void hpet_msi_capability_lookup(unsigned int start_timer) unsigned int num_timers_used = 0; int i; + if (hpet_msi_disable) + return; + id = hpet_readl(HPET_ID); num_timers = ((id & HPET_ID_NUMBER) >> HPET_ID_NUMBER_SHIFT); @@ -911,6 +916,9 @@ static __init int hpet_late_init(void) hpet_reserve_platform_timers(hpet_readl(HPET_ID)); hpet_print_config(); + if (hpet_msi_disable) + return 0; + for_each_online_cpu(cpu) { hpet_cpuhp_notify(NULL, CPU_ONLINE, (void *)(long)cpu); } diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index 6a3cefc7dda1..5eaeb5e35c49 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -251,7 +251,7 @@ static int __init msr_init(void) int i, err = 0; i = 0; - if (register_chrdev(MSR_MAJOR, "cpu/msr", &msr_fops)) { + if (__register_chrdev(MSR_MAJOR, 0, NR_CPUS, "cpu/msr", &msr_fops)) { printk(KERN_ERR "msr: unable to get major %d for msr\n", MSR_MAJOR); err = -EBUSY; @@ -279,7 +279,7 @@ out_class: msr_device_destroy(i); class_destroy(msr_class); out_chrdev: - unregister_chrdev(MSR_MAJOR, "cpu/msr"); + __unregister_chrdev(MSR_MAJOR, 0, NR_CPUS, "cpu/msr"); out: return err; } @@ -290,7 +290,7 @@ static void __exit msr_exit(void) for_each_online_cpu(cpu) msr_device_destroy(cpu); class_destroy(msr_class); - unregister_chrdev(MSR_MAJOR, "cpu/msr"); + __unregister_chrdev(MSR_MAJOR, 0, NR_CPUS, "cpu/msr"); unregister_hotcpu_notifier(&msr_class_cpu_notifier); } diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 971a3bec47a8..e6ec8a2df1c3 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -318,13 +318,15 @@ static inline struct iommu_table *find_iommu_table(struct device *dev) pdev = to_pci_dev(dev); + /* search up the device tree for an iommu */ pbus = pdev->bus; - - /* is the device behind a bridge? Look for the root bus */ - while (pbus->parent) + do { + tbl = pci_iommu(pbus); + if (tbl && tbl->it_busno == pbus->number) + break; + tbl = NULL; pbus = pbus->parent; - - tbl = pci_iommu(pbus); + } while (pbus); BUG_ON(tbl && (tbl->it_busno != pbus->number)); diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index a6e804d16c35..6ac3931160d7 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -214,7 +214,7 @@ static __init int iommu_setup(char *p) if (!strncmp(p, "allowdac", 8)) forbid_dac = 0; if (!strncmp(p, "nodac", 5)) - forbid_dac = -1; + forbid_dac = 1; if (!strncmp(p, "usedac", 6)) { forbid_dac = -1; return 1; diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index a7f1b64f86e0..fcc0b5c022c1 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -856,7 +856,7 @@ void __init gart_parse_options(char *p) #endif if (isdigit(*p) && get_option(&p, &arg)) iommu_size = arg; - if (!strncmp(p, "fullflush", 8)) + if (!strncmp(p, "fullflush", 9)) iommu_fullflush = 1; if (!strncmp(p, "nofullflush", 11)) iommu_fullflush = 0; diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 5284cd2b5776..f010ab424f1f 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -91,18 +91,6 @@ void flush_thread(void) { struct task_struct *tsk = current; -#ifdef CONFIG_X86_64 - if (test_tsk_thread_flag(tsk, TIF_ABI_PENDING)) { - clear_tsk_thread_flag(tsk, TIF_ABI_PENDING); - if (test_tsk_thread_flag(tsk, TIF_IA32)) { - clear_tsk_thread_flag(tsk, TIF_IA32); - } else { - set_tsk_thread_flag(tsk, TIF_IA32); - current_thread_info()->status |= TS_COMPAT; - } - } -#endif - clear_tsk_thread_flag(tsk, TIF_DEBUG); tsk->thread.debugreg0 = 0; diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index eb62cbcaa490..f9ce04f61003 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -540,6 +540,17 @@ sys_clone(unsigned long clone_flags, unsigned long newsp, return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid); } +void set_personality_ia32(void) +{ + /* inherit personality from parent */ + + /* Make sure to be in 32bit mode */ + set_thread_flag(TIF_IA32); + + /* Prepare the first "return" to user space */ + current_thread_info()->status |= TS_COMPAT; +} + unsigned long get_wchan(struct task_struct *p) { unsigned long stack; diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index 7b058a2dc66a..c06acddd6830 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -408,14 +408,14 @@ static int genregs_get(struct task_struct *target, { if (kbuf) { unsigned long *k = kbuf; - while (count > 0) { + while (count >= sizeof(*k)) { *k++ = getreg(target, pos); count -= sizeof(*k); pos += sizeof(*k); } } else { unsigned long __user *u = ubuf; - while (count > 0) { + while (count >= sizeof(*u)) { if (__put_user(getreg(target, pos), u++)) return -EFAULT; count -= sizeof(*u); @@ -434,14 +434,14 @@ static int genregs_set(struct task_struct *target, int ret = 0; if (kbuf) { const unsigned long *k = kbuf; - while (count > 0 && !ret) { + while (count >= sizeof(*k) && !ret) { ret = putreg(target, pos, *k++); count -= sizeof(*k); pos += sizeof(*k); } } else { const unsigned long __user *u = ubuf; - while (count > 0 && !ret) { + while (count >= sizeof(*u) && !ret) { unsigned long word; ret = __get_user(word, u++); if (ret) @@ -1219,14 +1219,14 @@ static int genregs32_get(struct task_struct *target, { if (kbuf) { compat_ulong_t *k = kbuf; - while (count > 0) { + while (count >= sizeof(*k)) { getreg32(target, pos, k++); count -= sizeof(*k); pos += sizeof(*k); } } else { compat_ulong_t __user *u = ubuf; - while (count > 0) { + while (count >= sizeof(*u)) { compat_ulong_t word; getreg32(target, pos, &word); if (__put_user(word, u++)) @@ -1247,14 +1247,14 @@ static int genregs32_set(struct task_struct *target, int ret = 0; if (kbuf) { const compat_ulong_t *k = kbuf; - while (count > 0 && !ret) { + while (count >= sizeof(*k) && !ret) { ret = putreg32(target, pos, *k++); count -= sizeof(*k); pos += sizeof(*k); } } else { const compat_ulong_t __user *u = ubuf; - while (count > 0 && !ret) { + while (count >= sizeof(*u) && !ret) { compat_ulong_t word; ret = __get_user(word, u++); if (ret) diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c index 6c3b2c6fd772..0040164f1a82 100644 --- a/arch/x86/kernel/quirks.c +++ b/arch/x86/kernel/quirks.c @@ -491,6 +491,19 @@ void force_hpet_resume(void) break; } } + +/* + * HPET MSI on some boards (ATI SB700/SB800) has side effect on + * floppy DMA. Disable HPET MSI on such platforms. + */ +static void force_disable_hpet_msi(struct pci_dev *unused) +{ + hpet_msi_disable = 1; +} + +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS, + force_disable_hpet_msi); + #endif #if defined(CONFIG_PCI) && defined(CONFIG_NUMA) diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index f93078746e00..bff34d68d9d1 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -203,6 +203,15 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = { DMI_MATCH(DMI_BOARD_NAME, "0T656F"), }, }, + { /* Handle problems with rebooting on Dell OptiPlex 760 with 0G919G*/ + .callback = set_bios_reboot, + .ident = "Dell OptiPlex 760", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 760"), + DMI_MATCH(DMI_BOARD_NAME, "0G919G"), + }, + }, { /* Handle problems with rebooting on Dell 2400's */ .callback = set_bios_reboot, .ident = "Dell PowerEdge 2400", @@ -259,6 +268,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "SBC-FITPC2"), }, }, + { /* Handle problems with rebooting on ASUS P4S800 */ + .callback = set_bios_reboot, + .ident = "ASUS P4S800", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "P4S800"), + }, + }, { } }; diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 2a34f9c5be21..8425f7ebe89e 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -109,6 +109,7 @@ #ifdef CONFIG_X86_64 #include <asm/numa_64.h> #endif +#include <asm/mce.h> /* * end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries. @@ -666,19 +667,27 @@ static struct dmi_system_id __initdata bad_bios_dmi_table[] = { DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix/MSC"), }, }, - { /* - * AMI BIOS with low memory corruption was found on Intel DG45ID board. - * It hase different DMI_BIOS_VENDOR = "Intel Corp.", for now we will + * AMI BIOS with low memory corruption was found on Intel DG45ID and + * DG45FC boards. + * It has a different DMI_BIOS_VENDOR = "Intel Corp.", for now we will * match only DMI_BOARD_NAME and see if there is more bad products * with this vendor. */ + { .callback = dmi_low_memory_corruption, .ident = "AMI BIOS", .matches = { DMI_MATCH(DMI_BOARD_NAME, "DG45ID"), }, }, + { + .callback = dmi_low_memory_corruption, + .ident = "AMI BIOS", + .matches = { + DMI_MATCH(DMI_BOARD_NAME, "DG45FC"), + }, + }, #endif {} }; @@ -1031,6 +1040,8 @@ void __init setup_arch(char **cmdline_p) #endif #endif x86_init.oem.banner(); + + mcheck_intel_therm_init(); } #ifdef CONFIG_X86_32 diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c index 1884a8d12bfa..dee1ff7cba58 100644 --- a/arch/x86/kernel/sys_i386_32.c +++ b/arch/x86/kernel/sys_i386_32.c @@ -24,31 +24,6 @@ #include <asm/syscalls.h> -asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file *file = NULL; - struct mm_struct *mm = current->mm; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(&mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(&mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - /* * Perform the select(nd, in, out, ex, tv) and mmap() system * calls. Linux/i386 didn't use to be able to handle more than @@ -77,7 +52,7 @@ asmlinkage int old_mmap(struct mmap_arg_struct __user *arg) if (a.offset & ~PAGE_MASK) goto out; - err = sys_mmap2(a.addr, a.len, a.prot, a.flags, + err = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); out: return err; diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c index 45e00eb09c3a..8aa2057efd12 100644 --- a/arch/x86/kernel/sys_x86_64.c +++ b/arch/x86/kernel/sys_x86_64.c @@ -23,26 +23,11 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, unsigned long, fd, unsigned long, off) { long error; - struct file *file; - error = -EINVAL; if (off & ~PAGE_MASK) goto out; - error = -EBADF; - file = NULL; - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, off >> PAGE_SHIFT); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); + error = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); out: return error; } diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index 0157cd26d7cc..76d70a451285 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -191,7 +191,7 @@ ENTRY(sys_call_table) .long sys_ni_syscall /* reserved for streams2 */ .long ptregs_vfork /* 190 */ .long sys_getrlimit - .long sys_mmap2 + .long sys_mmap_pgoff .long sys_truncate64 .long sys_ftruncate64 .long sys_stat64 /* 195 */ diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index 1740c85e24bb..364d015efebc 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -817,10 +817,8 @@ static int __init uv_init_blade(int blade) */ apicid = blade_to_first_apicid(blade); pa = uv_read_global_mmr64(pnode, UVH_BAU_DATA_CONFIG); - if ((pa & 0xff) != UV_BAU_MESSAGE) { - uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG, + uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG, ((apicid << 32) | UV_BAU_MESSAGE)); - } return 0; } diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index cd982f48e23e..597683aa5ba0 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -763,6 +763,7 @@ void mark_tsc_unstable(char *reason) { if (!tsc_unstable) { tsc_unstable = 1; + sched_clock_stable = 0; printk(KERN_INFO "Marking TSC unstable due to %s\n", reason); /* Change only the rating, when not registered */ if (clocksource_tsc.mult) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 1be5cd640e93..e02dbb670d5b 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -613,6 +613,9 @@ static int do_insn_fetch(struct x86_emulate_ctxt *ctxt, { int rc = 0; + /* x86 instructions are limited to 15 bytes. */ + if (eip + size - ctxt->decode.eip_orig > 15) + return X86EMUL_UNHANDLEABLE; eip += ctxt->cs_base; while (size--) { rc = do_fetch_insn_byte(ctxt, ops, eip++, dest++); @@ -871,7 +874,7 @@ x86_decode_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) /* Shadow copy of register state. Committed on successful emulation. */ memset(c, 0, sizeof(struct decode_cache)); - c->eip = kvm_rip_read(ctxt->vcpu); + c->eip = c->eip_orig = kvm_rip_read(ctxt->vcpu); ctxt->cs_base = seg_base(ctxt, VCPU_SREG_CS); memcpy(c->regs, ctxt->vcpu->arch.regs, sizeof c->regs); diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c index 144e7f60b5e2..88ad1627a89d 100644 --- a/arch/x86/kvm/i8254.c +++ b/arch/x86/kvm/i8254.c @@ -465,6 +465,9 @@ static int pit_ioport_read(struct kvm_io_device *this, return -EOPNOTSUPP; addr &= KVM_PIT_CHANNEL_MASK; + if (addr == 3) + return 0; + s = &pit_state->channels[addr]; mutex_lock(&pit_state->lock); diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 23c217692ea9..8dfeaaa70795 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -374,6 +374,12 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode, if (unlikely(!apic_enabled(apic))) break; + if (trig_mode) { + apic_debug("level trig mode for vector %d", vector); + apic_set_vector(vector, apic->regs + APIC_TMR); + } else + apic_clear_vector(vector, apic->regs + APIC_TMR); + result = !apic_test_and_set_irr(vector, apic); trace_kvm_apic_accept_irq(vcpu->vcpu_id, delivery_mode, trig_mode, vector, !result); @@ -384,11 +390,6 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode, break; } - if (trig_mode) { - apic_debug("level trig mode for vector %d", vector); - apic_set_vector(vector, apic->regs + APIC_TMR); - } else - apic_clear_vector(vector, apic->regs + APIC_TMR); kvm_vcpu_kick(vcpu); break; @@ -1156,6 +1157,7 @@ void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu) hrtimer_cancel(&apic->lapic_timer.timer); update_divide_count(apic); start_apic_timer(apic); + apic->irr_pending = true; } void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 818b92ad82cf..3a01519a49f2 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -477,7 +477,7 @@ static int host_mapping_level(struct kvm *kvm, gfn_t gfn) addr = gfn_to_hva(kvm, gfn); if (kvm_is_error_hva(addr)) - return page_size; + return PT_PAGE_TABLE_LEVEL; down_read(¤t->mm->mmap_sem); vma = find_vma(current->mm, addr); @@ -515,11 +515,9 @@ static int mapping_level(struct kvm_vcpu *vcpu, gfn_t large_gfn) if (host_level == PT_PAGE_TABLE_LEVEL) return host_level; - for (level = PT_DIRECTORY_LEVEL; level <= host_level; ++level) { - + for (level = PT_DIRECTORY_LEVEL; level <= host_level; ++level) if (has_wrprotected_page(vcpu->kvm, large_gfn, level)) break; - } return level - 1; } diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 72558f8ff3f5..5fa33255348c 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -150,7 +150,9 @@ walk: walker->table_gfn[walker->level - 1] = table_gfn; walker->pte_gpa[walker->level - 1] = pte_gpa; - kvm_read_guest(vcpu->kvm, pte_gpa, &pte, sizeof(pte)); + if (kvm_read_guest(vcpu->kvm, pte_gpa, &pte, sizeof(pte))) + goto not_present; + trace_kvm_mmu_paging_element(pte, walker->level); if (!is_present_gpte(pte)) @@ -455,8 +457,6 @@ out_unlock: static void FNAME(invlpg)(struct kvm_vcpu *vcpu, gva_t gva) { struct kvm_shadow_walk_iterator iterator; - pt_element_t gpte; - gpa_t pte_gpa = -1; int level; u64 *sptep; int need_flush = 0; @@ -471,10 +471,6 @@ static void FNAME(invlpg)(struct kvm_vcpu *vcpu, gva_t gva) if (level == PT_PAGE_TABLE_LEVEL || ((level == PT_DIRECTORY_LEVEL && is_large_pte(*sptep))) || ((level == PT_PDPE_LEVEL && is_large_pte(*sptep)))) { - struct kvm_mmu_page *sp = page_header(__pa(sptep)); - - pte_gpa = (sp->gfn << PAGE_SHIFT); - pte_gpa += (sptep - sp->spt) * sizeof(pt_element_t); if (is_shadow_present_pte(*sptep)) { rmap_remove(vcpu->kvm, sptep); @@ -493,18 +489,6 @@ static void FNAME(invlpg)(struct kvm_vcpu *vcpu, gva_t gva) if (need_flush) kvm_flush_remote_tlbs(vcpu->kvm); spin_unlock(&vcpu->kvm->mmu_lock); - - if (pte_gpa == -1) - return; - if (kvm_read_guest_atomic(vcpu->kvm, pte_gpa, &gpte, - sizeof(pt_element_t))) - return; - if (is_present_gpte(gpte) && (gpte & PT_ACCESSED_MASK)) { - if (mmu_topup_memory_caches(vcpu)) - return; - kvm_mmu_pte_write(vcpu, pte_gpa, (const u8 *)&gpte, - sizeof(pt_element_t), 0); - } } static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ae07d261527c..e78d9907e0ee 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -484,16 +484,19 @@ static inline u32 bit(int bitno) * and KVM_SET_MSRS, and KVM_GET_MSR_INDEX_LIST. * * This list is modified at module load time to reflect the - * capabilities of the host cpu. + * capabilities of the host cpu. This capabilities test skips MSRs that are + * kvm-specific. Those are put in the beginning of the list. */ + +#define KVM_SAVE_MSRS_BEGIN 2 static u32 msrs_to_save[] = { + MSR_KVM_SYSTEM_TIME, MSR_KVM_WALL_CLOCK, MSR_IA32_SYSENTER_CS, MSR_IA32_SYSENTER_ESP, MSR_IA32_SYSENTER_EIP, MSR_K6_STAR, #ifdef CONFIG_X86_64 MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR, #endif - MSR_IA32_TSC, MSR_KVM_SYSTEM_TIME, MSR_KVM_WALL_CLOCK, - MSR_IA32_PERF_STATUS, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA + MSR_IA32_TSC, MSR_IA32_PERF_STATUS, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA }; static unsigned num_msrs_to_save; @@ -580,7 +583,7 @@ static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock) { static int version; struct pvclock_wall_clock wc; - struct timespec now, sys, boot; + struct timespec boot; if (!wall_clock) return; @@ -595,9 +598,7 @@ static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock) * wall clock specified here. guest system time equals host * system time for us, thus we must fill in host boot time here. */ - now = current_kernel_time(); - ktime_get_ts(&sys); - boot = ns_to_timespec(timespec_to_ns(&now) - timespec_to_ns(&sys)); + getboottime(&boot); wc.sec = boot.tv_sec; wc.nsec = boot.tv_nsec; @@ -672,12 +673,14 @@ static void kvm_write_guest_time(struct kvm_vcpu *v) local_irq_save(flags); kvm_get_msr(v, MSR_IA32_TSC, &vcpu->hv_clock.tsc_timestamp); ktime_get_ts(&ts); + monotonic_to_bootbased(&ts); local_irq_restore(flags); /* With all the info we got, fill in the values */ vcpu->hv_clock.system_time = ts.tv_nsec + - (NSEC_PER_SEC * (u64)ts.tv_sec); + (NSEC_PER_SEC * (u64)ts.tv_sec) + v->kvm->arch.kvmclock_offset; + /* * The interface expects us to write an even number signaling that the * update is finished. Since the guest won't see the intermediate @@ -1224,6 +1227,7 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_PIT2: case KVM_CAP_PIT_STATE2: case KVM_CAP_SET_IDENTITY_MAP_ADDR: + case KVM_CAP_ADJUST_CLOCK: r = 1; break; case KVM_CAP_COALESCED_MMIO: @@ -2421,6 +2425,44 @@ long kvm_arch_vm_ioctl(struct file *filp, r = 0; break; } + case KVM_SET_CLOCK: { + struct timespec now; + struct kvm_clock_data user_ns; + u64 now_ns; + s64 delta; + + r = -EFAULT; + if (copy_from_user(&user_ns, argp, sizeof(user_ns))) + goto out; + + r = -EINVAL; + if (user_ns.flags) + goto out; + + r = 0; + ktime_get_ts(&now); + now_ns = timespec_to_ns(&now); + delta = user_ns.clock - now_ns; + kvm->arch.kvmclock_offset = delta; + break; + } + case KVM_GET_CLOCK: { + struct timespec now; + struct kvm_clock_data user_ns; + u64 now_ns; + + ktime_get_ts(&now); + now_ns = timespec_to_ns(&now); + user_ns.clock = kvm->arch.kvmclock_offset + now_ns; + user_ns.flags = 0; + + r = -EFAULT; + if (copy_to_user(argp, &user_ns, sizeof(user_ns))) + goto out; + r = 0; + break; + } + default: ; } @@ -2433,7 +2475,8 @@ static void kvm_init_msr_list(void) u32 dummy[2]; unsigned i, j; - for (i = j = 0; i < ARRAY_SIZE(msrs_to_save); i++) { + /* skip the first msrs in the list. KVM-specific */ + for (i = j = KVM_SAVE_MSRS_BEGIN; i < ARRAY_SIZE(msrs_to_save); i++) { if (rdmsr_safe(msrs_to_save[i], &dummy[0], &dummy[1]) < 0) continue; if (j < i) @@ -4762,12 +4805,13 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) GFP_KERNEL); if (!vcpu->arch.mce_banks) { r = -ENOMEM; - goto fail_mmu_destroy; + goto fail_free_lapic; } vcpu->arch.mcg_cap = KVM_MAX_MCE_BANKS; return 0; - +fail_free_lapic: + kvm_free_lapic(vcpu); fail_mmu_destroy: kvm_mmu_destroy(vcpu); fail_free_pio_data: @@ -4778,6 +4822,7 @@ fail: void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) { + kfree(vcpu->arch.mce_banks); kvm_free_lapic(vcpu); down_read(&vcpu->kvm->slots_lock); kvm_mmu_destroy(vcpu); diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 85f5db95c60f..c2b6f395a022 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -2,14 +2,14 @@ # Makefile for x86 specific library files. # -obj-$(CONFIG_SMP) := msr.o +obj-$(CONFIG_SMP) += msr-smp.o lib-y := delay.o lib-y += thunk_$(BITS).o lib-y += usercopy_$(BITS).o getuser.o putuser.o lib-y += memcpy_$(BITS).o -obj-y += msr-reg.o msr-reg-export.o +obj-y += msr.o msr-reg.o msr-reg-export.o ifeq ($(CONFIG_X86_32),y) obj-y += atomic64_32.o diff --git a/arch/x86/lib/msr-smp.c b/arch/x86/lib/msr-smp.c new file mode 100644 index 000000000000..a6b1b86d2253 --- /dev/null +++ b/arch/x86/lib/msr-smp.c @@ -0,0 +1,204 @@ +#include <linux/module.h> +#include <linux/preempt.h> +#include <linux/smp.h> +#include <asm/msr.h> + +static void __rdmsr_on_cpu(void *info) +{ + struct msr_info *rv = info; + struct msr *reg; + int this_cpu = raw_smp_processor_id(); + + if (rv->msrs) + reg = per_cpu_ptr(rv->msrs, this_cpu); + else + reg = &rv->reg; + + rdmsr(rv->msr_no, reg->l, reg->h); +} + +static void __wrmsr_on_cpu(void *info) +{ + struct msr_info *rv = info; + struct msr *reg; + int this_cpu = raw_smp_processor_id(); + + if (rv->msrs) + reg = per_cpu_ptr(rv->msrs, this_cpu); + else + reg = &rv->reg; + + wrmsr(rv->msr_no, reg->l, reg->h); +} + +int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) +{ + int err; + struct msr_info rv; + + memset(&rv, 0, sizeof(rv)); + + rv.msr_no = msr_no; + err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1); + *l = rv.reg.l; + *h = rv.reg.h; + + return err; +} +EXPORT_SYMBOL(rdmsr_on_cpu); + +int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) +{ + int err; + struct msr_info rv; + + memset(&rv, 0, sizeof(rv)); + + rv.msr_no = msr_no; + rv.reg.l = l; + rv.reg.h = h; + err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1); + + return err; +} +EXPORT_SYMBOL(wrmsr_on_cpu); + +static void __rwmsr_on_cpus(const struct cpumask *mask, u32 msr_no, + struct msr *msrs, + void (*msr_func) (void *info)) +{ + struct msr_info rv; + int this_cpu; + + memset(&rv, 0, sizeof(rv)); + + rv.msrs = msrs; + rv.msr_no = msr_no; + + this_cpu = get_cpu(); + + if (cpumask_test_cpu(this_cpu, mask)) + msr_func(&rv); + + smp_call_function_many(mask, msr_func, &rv, 1); + put_cpu(); +} + +/* rdmsr on a bunch of CPUs + * + * @mask: which CPUs + * @msr_no: which MSR + * @msrs: array of MSR values + * + */ +void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs) +{ + __rwmsr_on_cpus(mask, msr_no, msrs, __rdmsr_on_cpu); +} +EXPORT_SYMBOL(rdmsr_on_cpus); + +/* + * wrmsr on a bunch of CPUs + * + * @mask: which CPUs + * @msr_no: which MSR + * @msrs: array of MSR values + * + */ +void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs) +{ + __rwmsr_on_cpus(mask, msr_no, msrs, __wrmsr_on_cpu); +} +EXPORT_SYMBOL(wrmsr_on_cpus); + +/* These "safe" variants are slower and should be used when the target MSR + may not actually exist. */ +static void __rdmsr_safe_on_cpu(void *info) +{ + struct msr_info *rv = info; + + rv->err = rdmsr_safe(rv->msr_no, &rv->reg.l, &rv->reg.h); +} + +static void __wrmsr_safe_on_cpu(void *info) +{ + struct msr_info *rv = info; + + rv->err = wrmsr_safe(rv->msr_no, rv->reg.l, rv->reg.h); +} + +int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) +{ + int err; + struct msr_info rv; + + memset(&rv, 0, sizeof(rv)); + + rv.msr_no = msr_no; + err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1); + *l = rv.reg.l; + *h = rv.reg.h; + + return err ? err : rv.err; +} +EXPORT_SYMBOL(rdmsr_safe_on_cpu); + +int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) +{ + int err; + struct msr_info rv; + + memset(&rv, 0, sizeof(rv)); + + rv.msr_no = msr_no; + rv.reg.l = l; + rv.reg.h = h; + err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1); + + return err ? err : rv.err; +} +EXPORT_SYMBOL(wrmsr_safe_on_cpu); + +/* + * These variants are significantly slower, but allows control over + * the entire 32-bit GPR set. + */ +static void __rdmsr_safe_regs_on_cpu(void *info) +{ + struct msr_regs_info *rv = info; + + rv->err = rdmsr_safe_regs(rv->regs); +} + +static void __wrmsr_safe_regs_on_cpu(void *info) +{ + struct msr_regs_info *rv = info; + + rv->err = wrmsr_safe_regs(rv->regs); +} + +int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs) +{ + int err; + struct msr_regs_info rv; + + rv.regs = regs; + rv.err = -EIO; + err = smp_call_function_single(cpu, __rdmsr_safe_regs_on_cpu, &rv, 1); + + return err ? err : rv.err; +} +EXPORT_SYMBOL(rdmsr_safe_regs_on_cpu); + +int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs) +{ + int err; + struct msr_regs_info rv; + + rv.regs = regs; + rv.err = -EIO; + err = smp_call_function_single(cpu, __wrmsr_safe_regs_on_cpu, &rv, 1); + + return err ? err : rv.err; +} +EXPORT_SYMBOL(wrmsr_safe_regs_on_cpu); diff --git a/arch/x86/lib/msr.c b/arch/x86/lib/msr.c index 33a1e3ca22d8..8f8eebdca7d4 100644 --- a/arch/x86/lib/msr.c +++ b/arch/x86/lib/msr.c @@ -1,226 +1,23 @@ #include <linux/module.h> #include <linux/preempt.h> -#include <linux/smp.h> #include <asm/msr.h> -struct msr_info { - u32 msr_no; - struct msr reg; - struct msr *msrs; - int off; - int err; -}; - -static void __rdmsr_on_cpu(void *info) -{ - struct msr_info *rv = info; - struct msr *reg; - int this_cpu = raw_smp_processor_id(); - - if (rv->msrs) - reg = &rv->msrs[this_cpu - rv->off]; - else - reg = &rv->reg; - - rdmsr(rv->msr_no, reg->l, reg->h); -} - -static void __wrmsr_on_cpu(void *info) -{ - struct msr_info *rv = info; - struct msr *reg; - int this_cpu = raw_smp_processor_id(); - - if (rv->msrs) - reg = &rv->msrs[this_cpu - rv->off]; - else - reg = &rv->reg; - - wrmsr(rv->msr_no, reg->l, reg->h); -} - -int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) -{ - int err; - struct msr_info rv; - - memset(&rv, 0, sizeof(rv)); - - rv.msr_no = msr_no; - err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1); - *l = rv.reg.l; - *h = rv.reg.h; - - return err; -} -EXPORT_SYMBOL(rdmsr_on_cpu); - -int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) -{ - int err; - struct msr_info rv; - - memset(&rv, 0, sizeof(rv)); - - rv.msr_no = msr_no; - rv.reg.l = l; - rv.reg.h = h; - err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1); - - return err; -} -EXPORT_SYMBOL(wrmsr_on_cpu); - -/* rdmsr on a bunch of CPUs - * - * @mask: which CPUs - * @msr_no: which MSR - * @msrs: array of MSR values - * - */ -void rdmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs) -{ - struct msr_info rv; - int this_cpu; - - memset(&rv, 0, sizeof(rv)); - - rv.off = cpumask_first(mask); - rv.msrs = msrs; - rv.msr_no = msr_no; - - this_cpu = get_cpu(); - - if (cpumask_test_cpu(this_cpu, mask)) - __rdmsr_on_cpu(&rv); - - smp_call_function_many(mask, __rdmsr_on_cpu, &rv, 1); - put_cpu(); -} -EXPORT_SYMBOL(rdmsr_on_cpus); - -/* - * wrmsr on a bunch of CPUs - * - * @mask: which CPUs - * @msr_no: which MSR - * @msrs: array of MSR values - * - */ -void wrmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs) -{ - struct msr_info rv; - int this_cpu; - - memset(&rv, 0, sizeof(rv)); - - rv.off = cpumask_first(mask); - rv.msrs = msrs; - rv.msr_no = msr_no; - - this_cpu = get_cpu(); - - if (cpumask_test_cpu(this_cpu, mask)) - __wrmsr_on_cpu(&rv); - - smp_call_function_many(mask, __wrmsr_on_cpu, &rv, 1); - put_cpu(); -} -EXPORT_SYMBOL(wrmsr_on_cpus); - -/* These "safe" variants are slower and should be used when the target MSR - may not actually exist. */ -static void __rdmsr_safe_on_cpu(void *info) -{ - struct msr_info *rv = info; - - rv->err = rdmsr_safe(rv->msr_no, &rv->reg.l, &rv->reg.h); -} - -static void __wrmsr_safe_on_cpu(void *info) -{ - struct msr_info *rv = info; - - rv->err = wrmsr_safe(rv->msr_no, rv->reg.l, rv->reg.h); -} - -int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) +struct msr *msrs_alloc(void) { - int err; - struct msr_info rv; + struct msr *msrs = NULL; - memset(&rv, 0, sizeof(rv)); + msrs = alloc_percpu(struct msr); + if (!msrs) { + pr_warning("%s: error allocating msrs\n", __func__); + return NULL; + } - rv.msr_no = msr_no; - err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1); - *l = rv.reg.l; - *h = rv.reg.h; - - return err ? err : rv.err; + return msrs; } -EXPORT_SYMBOL(rdmsr_safe_on_cpu); +EXPORT_SYMBOL(msrs_alloc); -int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) +void msrs_free(struct msr *msrs) { - int err; - struct msr_info rv; - - memset(&rv, 0, sizeof(rv)); - - rv.msr_no = msr_no; - rv.reg.l = l; - rv.reg.h = h; - err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1); - - return err ? err : rv.err; -} -EXPORT_SYMBOL(wrmsr_safe_on_cpu); - -/* - * These variants are significantly slower, but allows control over - * the entire 32-bit GPR set. - */ -struct msr_regs_info { - u32 *regs; - int err; -}; - -static void __rdmsr_safe_regs_on_cpu(void *info) -{ - struct msr_regs_info *rv = info; - - rv->err = rdmsr_safe_regs(rv->regs); -} - -static void __wrmsr_safe_regs_on_cpu(void *info) -{ - struct msr_regs_info *rv = info; - - rv->err = wrmsr_safe_regs(rv->regs); -} - -int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs) -{ - int err; - struct msr_regs_info rv; - - rv.regs = regs; - rv.err = -EIO; - err = smp_call_function_single(cpu, __rdmsr_safe_regs_on_cpu, &rv, 1); - - return err ? err : rv.err; -} -EXPORT_SYMBOL(rdmsr_safe_regs_on_cpu); - -int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs) -{ - int err; - struct msr_regs_info rv; - - rv.regs = regs; - rv.err = -EIO; - err = smp_call_function_single(cpu, __wrmsr_safe_regs_on_cpu, &rv, 1); - - return err ? err : rv.err; + free_percpu(msrs); } -EXPORT_SYMBOL(wrmsr_safe_regs_on_cpu); +EXPORT_SYMBOL(msrs_free); diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c index dbb5381f7b3b..3871c600c4f3 100644 --- a/arch/x86/mm/srat_64.c +++ b/arch/x86/mm/srat_64.c @@ -229,9 +229,11 @@ update_nodes_add(int node, unsigned long start, unsigned long end) printk(KERN_ERR "SRAT: Hotplug zone not continuous. Partly ignored\n"); } - if (changed) + if (changed) { + node_set(node, cpu_nodes_parsed); printk(KERN_INFO "SRAT: hot plug zone found %Lx - %Lx\n", nd->start, nd->end); + } } /* Callback for parsing of the Proximity Domain <-> Memory Area mappings */ diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index cb88b1a0bd5f..3347f696edc7 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -222,7 +222,7 @@ static void nmi_cpu_switch(void *dummy) /* move to next set */ si += model->num_counters; - if ((si > model->num_virt_counters) || (counter_config[si].count == 0)) + if ((si >= model->num_virt_counters) || (counter_config[si].count == 0)) per_cpu(switch_index, cpu) = 0; else per_cpu(switch_index, cpu) = si; @@ -598,6 +598,7 @@ static int __init ppro_init(char **cpu_type) case 15: case 23: *cpu_type = "i386/core_2"; break; + case 0x2e: case 26: spec = &op_arch_perfmon_spec; *cpu_type = "i386/core_i7"; diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index b22d13b0c71d..a672f12afe34 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -282,6 +282,15 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, return -EINVAL; prot = pgprot_val(vma->vm_page_prot); + + /* + * Return error if pat is not enabled and write_combine is requested. + * Caller can followup with UC MINUS request and add a WC mtrr if there + * is a free mtrr slot. + */ + if (!pat_enabled && write_combine) + return -EINVAL; + if (pat_enabled && write_combine) prot |= _PAGE_CACHE_WC; else if (pat_enabled || boot_cpu_data.x86 > 3) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index dfbf70e65860..79f97383cde3 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -138,24 +138,23 @@ static void xen_vcpu_setup(int cpu) */ void xen_vcpu_restore(void) { - if (have_vcpu_info_placement) { - int cpu; + int cpu; - for_each_online_cpu(cpu) { - bool other_cpu = (cpu != smp_processor_id()); + for_each_online_cpu(cpu) { + bool other_cpu = (cpu != smp_processor_id()); - if (other_cpu && - HYPERVISOR_vcpu_op(VCPUOP_down, cpu, NULL)) - BUG(); + if (other_cpu && + HYPERVISOR_vcpu_op(VCPUOP_down, cpu, NULL)) + BUG(); - xen_vcpu_setup(cpu); + xen_setup_runstate_info(cpu); - if (other_cpu && - HYPERVISOR_vcpu_op(VCPUOP_up, cpu, NULL)) - BUG(); - } + if (have_vcpu_info_placement) + xen_vcpu_setup(cpu); - BUG_ON(!have_vcpu_info_placement); + if (other_cpu && + HYPERVISOR_vcpu_op(VCPUOP_up, cpu, NULL)) + BUG(); } } @@ -1182,6 +1181,8 @@ asmlinkage void __init xen_start_kernel(void) xen_raw_console_write("about to get started...\n"); + xen_setup_runstate_info(0); + /* Start the world */ #ifdef CONFIG_X86_32 i386_start_kernel(); diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 3bf7b1d250ce..bf4cd6bfe959 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -185,7 +185,7 @@ static inline unsigned p2m_index(unsigned long pfn) } /* Build the parallel p2m_top_mfn structures */ -static void __init xen_build_mfn_list_list(void) +void xen_build_mfn_list_list(void) { unsigned pfn, idx; diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index fe03eeed7b48..360f8d8c19cd 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -295,6 +295,7 @@ static int __cpuinit xen_cpu_up(unsigned int cpu) (unsigned long)task_stack_page(idle) - KERNEL_STACK_OFFSET + THREAD_SIZE; #endif + xen_setup_runstate_info(cpu); xen_setup_timer(cpu); xen_init_lock_cpu(cpu); diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c index 95be7b434724..987267f79bf5 100644 --- a/arch/x86/xen/suspend.c +++ b/arch/x86/xen/suspend.c @@ -1,4 +1,5 @@ #include <linux/types.h> +#include <linux/clockchips.h> #include <xen/interface/xen.h> #include <xen/grant_table.h> @@ -27,6 +28,8 @@ void xen_pre_suspend(void) void xen_post_suspend(int suspend_cancelled) { + xen_build_mfn_list_list(); + xen_setup_shared_info(); if (suspend_cancelled) { @@ -44,7 +47,19 @@ void xen_post_suspend(int suspend_cancelled) } +static void xen_vcpu_notify_restore(void *data) +{ + unsigned long reason = (unsigned long)data; + + /* Boot processor notified via generic timekeeping_resume() */ + if ( smp_processor_id() == 0) + return; + + clockevents_notify(reason, NULL); +} + void xen_arch_resume(void) { - /* nothing */ + smp_call_function(xen_vcpu_notify_restore, + (void *)CLOCK_EVT_NOTIFY_RESUME, 1); } diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c index 0a5aa44299a5..9d1f853120d8 100644 --- a/arch/x86/xen/time.c +++ b/arch/x86/xen/time.c @@ -100,7 +100,7 @@ bool xen_vcpu_stolen(int vcpu) return per_cpu(runstate, vcpu).state == RUNSTATE_runnable; } -static void setup_runstate_info(int cpu) +void xen_setup_runstate_info(int cpu) { struct vcpu_register_runstate_memory_area area; @@ -434,7 +434,7 @@ void xen_setup_timer(int cpu) name = "<timer kasprintf failed>"; irq = bind_virq_to_irqhandler(VIRQ_TIMER, cpu, xen_timer_interrupt, - IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING, + IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING|IRQF_TIMER, name, NULL); evt = &per_cpu(xen_clock_events, cpu); @@ -442,8 +442,6 @@ void xen_setup_timer(int cpu) evt->cpumask = cpumask_of(cpu); evt->irq = irq; - - setup_runstate_info(cpu); } void xen_teardown_timer(int cpu) @@ -494,6 +492,7 @@ __init void xen_time_init(void) setup_force_cpu_cap(X86_FEATURE_TSC); + xen_setup_runstate_info(cpu); xen_setup_timer(cpu); xen_setup_cpu_clockevents(); } diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S index 02f496a8dbaa..53adefda4275 100644 --- a/arch/x86/xen/xen-asm_64.S +++ b/arch/x86/xen/xen-asm_64.S @@ -96,7 +96,7 @@ ENTRY(xen_sysret32) pushq $__USER32_CS pushq %rcx - pushq $VGCF_in_syscall + pushq $0 1: jmp hypercall_iret ENDPATCH(xen_sysret32) RELOC(xen_sysret32, 1b+1) @@ -151,7 +151,7 @@ ENTRY(xen_syscall32_target) ENTRY(xen_sysenter_target) lea 16(%rsp), %rsp /* strip %rcx, %r11 */ mov $-ENOSYS, %rax - pushq $VGCF_in_syscall + pushq $0 jmp hypercall_iret ENDPROC(xen_syscall32_target) ENDPROC(xen_sysenter_target) diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h index 355fa6b99c9c..f9153a300bce 100644 --- a/arch/x86/xen/xen-ops.h +++ b/arch/x86/xen/xen-ops.h @@ -25,6 +25,7 @@ extern struct shared_info *HYPERVISOR_shared_info; void xen_setup_mfn_list_list(void); void xen_setup_shared_info(void); +void xen_build_mfn_list_list(void); void xen_setup_machphys_mapping(void); pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn); void xen_ident_map_ISA(void); @@ -41,6 +42,7 @@ void __init xen_build_dynamic_phys_to_machine(void); void xen_init_irq_ops(void); void xen_setup_timer(int cpu); +void xen_setup_runstate_info(int cpu); void xen_teardown_timer(int cpu); cycle_t xen_clocksource_read(void); void xen_setup_cpu_clockevents(void); diff --git a/arch/xtensa/include/asm/syscall.h b/arch/xtensa/include/asm/syscall.h index 05cebf8f62b1..4352dbe1186a 100644 --- a/arch/xtensa/include/asm/syscall.h +++ b/arch/xtensa/include/asm/syscall.h @@ -13,8 +13,6 @@ struct sigaction; asmlinkage long xtensa_execve(char*, char**, char**, struct pt_regs*); asmlinkage long xtensa_clone(unsigned long, unsigned long, struct pt_regs*); asmlinkage long xtensa_pipe(int __user *); -asmlinkage long xtensa_mmap2(unsigned long, unsigned long, unsigned long, - unsigned long, unsigned long, unsigned long); asmlinkage long xtensa_ptrace(long, long, long, long); asmlinkage long xtensa_sigreturn(struct pt_regs*); asmlinkage long xtensa_rt_sigreturn(struct pt_regs*); diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h index c092c8fbb2cf..9a5c354d2138 100644 --- a/arch/xtensa/include/asm/unistd.h +++ b/arch/xtensa/include/asm/unistd.h @@ -189,7 +189,7 @@ __SYSCALL( 79, sys_fremovexattr, 2) /* File Map / Shared Memory Operations */ #define __NR_mmap2 80 -__SYSCALL( 80, xtensa_mmap2, 6) +__SYSCALL( 80, sys_mmap_pgoff, 6) #define __NR_munmap 81 __SYSCALL( 81, sys_munmap, 2) #define __NR_mprotect 82 diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c index ac15ecbdf919..1e67bab775c1 100644 --- a/arch/xtensa/kernel/syscall.c +++ b/arch/xtensa/kernel/syscall.c @@ -57,31 +57,6 @@ asmlinkage long xtensa_pipe(int __user *userfds) return error; } - -asmlinkage long xtensa_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg) { unsigned long ret; |