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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds2010-08-0626-290/+288
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (28 commits) driver core: device_rename's new_name can be const sysfs: Remove owner field from sysfs struct attribute powerpc/pci: Remove owner field from attribute initialization in PCI bridge init regulator: Remove owner field from attribute initialization in regulator core driver leds: Remove owner field from attribute initialization in bd2802 driver scsi: Remove owner field from attribute initialization in ARCMSR driver scsi: Remove owner field from attribute initialization in LPFC driver cgroupfs: create /sys/fs/cgroup to mount cgroupfs on Driver core: Add BUS_NOTIFY_BIND_DRIVER driver core: fix memory leak on one error path in bus_register() debugfs: no longer needs to depend on SYSFS sysfs: Fix one more signature discrepancy between sysfs implementation and docs. sysfs: fix discrepancies between implementation and documentation dcdbas: remove a redundant smi_data_buf_free in dcdbas_exit dmi-id: fix a memory leak in dmi_id_init error path sysfs: sysfs_chmod_file's attr can be const firmware: Update hotplug script Driver core: move platform device creation helpers to .init.text (if MODULE=n) Driver core: reduce duplicated code for platform_device creation Driver core: use kmemdup in platform_device_add_resources ...
| * driver core: device_rename's new_name can be constJohannes Berg2010-08-052-2/+2
| | | | | | | | | | | | | | | | | | The new_name argument to device_rename() can be const as kobject_rename's new_name argument is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * sysfs: Remove owner field from sysfs struct attributeGuenter Roeck2010-08-051-6/+0
| | | | | | | | | | | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * powerpc/pci: Remove owner field from attribute initialization in PCI bridge initGuenter Roeck2010-08-051-1/+0
| | | | | | | | | | | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * regulator: Remove owner field from attribute initialization in regulator ↵Guenter Roeck2010-08-051-1/+0
| | | | | | | | | | | | | | | | | | | | core driver Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * leds: Remove owner field from attribute initialization in bd2802 driverGuenter Roeck2010-08-051-3/+1
| | | | | | | | | | | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * scsi: Remove owner field from attribute initialization in ARCMSR driverGuenter Roeck2010-08-051-3/+0
| | | | | | | | | | | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * scsi: Remove owner field from attribute initialization in LPFC driverGuenter Roeck2010-08-051-1/+0
| | | | | | | | | | | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * cgroupfs: create /sys/fs/cgroup to mount cgroupfs onGreg KH2010-08-051-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We really shouldn't be asking userspace to create new root filesystems. So follow along with all of the other in-kernel filesystems, and provide a mount point in sysfs. For cgroupfs, this should be in /sys/fs/cgroup/ This change provides that mount point when the cgroup filesystem is registered in the kernel. Acked-by: Paul Menage <menage@google.com> Acked-by: Dhaval Giani <dhaval.giani@gmail.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Lennart Poettering <lennart@poettering.net> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: Add BUS_NOTIFY_BIND_DRIVERMagnus Damm2010-08-052-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add BUS_NOTIFY_BIND_DRIVER as a bus notifier event. For driver binding/unbinding we with this in place have the following bus notifier events: - BUS_NOTIFY_BIND_DRIVER - before ->probe() - BUS_NOTIFY_BOUND_DRIVER - after ->probe() - BUS_NOTIFY_UNBIND_DRIVER - before ->remove() - BUS_NOTIFY_UNBOUND_DRIVER - after ->remove() The event BUS_NOTIFY_BIND_DRIVER allows bus code to be notified that ->probe() is about to be called. Useful for bus code that needs to setup hardware before the driver gets to run. With this in place platform drivers can be loaded and unloaded as modules and the new BIND event allows bus code to control for instance device clocks that must be enabled before the driver can be executed. Without this patch there is no way for the bus code to get notified that a modular driver is about to be probed. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * driver core: fix memory leak on one error path in bus_register()Jike Song2010-08-051-1/+1
| | | | | | | | | | | | | | Reported-by: huangweibing@gmail.com Signed-off-by: Jike Song <albcamus@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * debugfs: no longer needs to depend on SYSFSRandy Dunlap2010-08-051-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | debugfs no longer uses 'kernel_subsys' (which is gone), and other kernel/ksysfs.c code is always built, so DEBUG_FS does not need to depend on SYSFS. Fixes this kconfig warning: warning: (TREE_RCU_TRACE || AMD_IOMMU_STATS && AMD_IOMMU || MTD_UBI_DEBUG && MTD && SYSFS && MTD_UBI || UBIFS_FS_DEBUG && MISC_FILESYSTEMS && UBIFS_FS || DEBUG_KMEMLEAK && DEBUG_KERNEL && EXPERIMENTAL && !MEMORY_HOTPLUG && (X86 || ARM || PPC || S390 || SPARC64 || SUPERH || MICROBLAZE) && SYSFS || TRACING || X86_PTDUMP && DEBUG_KERNEL || BLK_DEV_IO_TRACE && TRACING_SUPPORT && FTRACE && SYSFS && BLOCK) selects DEBUG_FS which has unmet direct dependencies (SYSFS) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * sysfs: Fix one more signature discrepancy between sysfs implementation and docs.Ira Weiny2010-08-051-2/+2
| | | | | | | | | | | | Signed-off-by: Ira Weiny <weiny2@llnl.gov> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * sysfs: fix discrepancies between implementation and documentationBart Van Assche2010-08-051-19/+25
| | | | | | | | | | | | | | | | | | | | | | Fix all discrepancies I know of between the sysfs implementation and its documentation. Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * dcdbas: remove a redundant smi_data_buf_free in dcdbas_exitAxel Lin2010-08-051-3/+2
| | | | | | | | | | | | | | | | | | | | smi_data_buf_free is called twice in current implementation. The second call simply return because smi_data_buf is set to NULL in first call. This patch removes the second smi_data_buf_free call. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * dmi-id: fix a memory leak in dmi_id_init error pathAxel Lin2010-08-051-1/+3
| | | | | | | | | | | | | | | | | | This patch adds a missing kfree(dmi_dev) in dmi_id_init error path. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * sysfs: sysfs_chmod_file's attr can be constJean Delvare2010-08-052-4/+5
| | | | | | | | | | | | | | | | | | sysfs_chmod_file doesn't change the attribute it operates on, so this attribute can be marked const. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * firmware: Update hotplug scriptMagnus Damm2010-08-051-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the in-kernel hotplug example script to work properly with recent kernels. Without this fix the script may load the firmware twice - both at "add" and "remove" time. The second load only triggers in the case when multiple firmware images are used. A good example is the b43 driver which does not work properly without this fix. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: move platform device creation helpers to .init.text (if MODULE=n)Uwe Kleine-König2010-08-051-1/+1
| | | | | | | | | | | | | | | | | | | | Platform devices should only be called by init code, so it should be possible to move creation helpers to .init.text -- at least if modules are disabled. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: reduce duplicated code for platform_device creationUwe Kleine-König2010-08-053-82/+85
| | | | | | | | | | | | | | | | | | | | This makes the two similar functions platform_device_register_simple and platform_device_register_data one line inline functions using a new generic function platform_device_register_resndata. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: use kmemdup in platform_device_add_resourcesUwe Kleine-König2010-08-051-3/+3
| | | | | | | | | | | | | | | | | | This makes platform_device_add_resources look like platform_device_add_data. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * firmware loader: embed device into firmware_priv structureDmitry Torokhov2010-08-051-133/+122
| | | | | | | | | | | | | | | | | | | | | | Both these structures have the same lifetime rules so instead of allocating and managing them separately embed struct device into struct firmware_priv. Also make sure to delete sysfs attributes ourselves instead of expecting sysfs to clean up our mess. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * firmware loader: use statically initialized data attributeDmitry Torokhov2010-08-051-6/+3
| | | | | | | | | | | | | | | | | | | | There is no reason why we are using a template for binary attribute and copying it into per-firmware data before registering. Using the original works as well. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: Drop __must_check from bus_for_each_drv()Jean Delvare2010-08-051-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is little rationale for marking bus_for_each_drv() __must_check. It is more of an iteration helper than a real function. You don't know in advance which callback it will be used on, so you have no clue how important it can be to check the returned value. In practice, this helper function can be used for best-effort tasks. As a matter of fact, bus_for_each_dev() is not marked __must_check. So remove it from bus_for_each_drv() as well. This is the same that was done back in October 2006 by Russell King for device_for_each_child(), for exactly the same reasons. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: internal struct dma_coherent_mem, change type of a member.Marin Mitov2010-08-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | struct dma_coherent_mem in drivers/base/dma-coherent.c has member 'device_base' that is of type u32, but is assigned value of type dma_addr_t, which may be 64 bits for x86_64. Change the type to dma_addr_t. Signed-off-by: Marin Mitov <mitov@issp.bas.bg> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * hotplug: Support kernel/hotplug sysctl variable when !CONFIG_NETIan Abbott2010-08-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kernel/hotplug sysctl variable (/proc/sys/kernel/hotplug file) was made conditional on CONFIG_NET by commit f743ca5e10f4145e0b3e6d11b9b46171e16af7ce (applied in 2.6.18) to fix problems with undefined references in 2.6.16 when CONFIG_HOTPLUG=y && !CONFIG_NET, but this restriction is no longer needed. This patch makes the kernel/hotplug sysctl variable depend only on CONFIG_HOTPLUG. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Acked-by: Randy Dunlap <randy.dunlap@oracle.COM> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * uio: Remove IRQF_DISABLED flag from uio_cif.cHans J. Koch2010-08-051-1/+1
| | | | | | | | | | | | | | | | | | Remove IRQF_DISABLED since it is deprecated and a no-op in the current kernel. Signed-off-by: Hans J. Koch <hjk@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * uio: Remove IRQF_DISABLED from uio_sercos3.cHans J. Koch2010-08-051-1/+1
| | | | | | | | | | | | | | | | | | | | Remove IRQF_DISABLED since it is deprecated and a no-op in the current kernel. Signed-off-by: Hans J. Koch <hjk@linutronix.de> Acked-by: John Ogness <john.ogness@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * uio: Remove IRQF_DISABLED flag from uio_pdrv_genirq.cHans J. Koch2010-08-051-1/+0
| | | | | | | | | | | | | | | | | | Remove IRQF_DISABLED flag since it is deprecated and a no-op in the current kernel. Signed-off-by: Hans J. Koch <hjk@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | pci: fix type warnings in intr_remapping.cLinus Torvalds2010-08-061-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 69309a059075 ("x86, asm: Clean up and simplify set_64bit()") sanitized the x86-64 types to set_64bit(), and incidentally resulted in warnings like drivers/pci/intr_remapping.c: In function 'modify_irte': drivers/pci/intr_remapping.c:314: warning: passing argument 1 of 'set_64bit' from incompatible pointer type arch/x86/include/asm/cmpxchg_64.h:6: note:expected 'volatile u64 *' but argument is of type 'long unsigned int *' It turns out that the change to set_64bit() really does clean up things, and the PCI intr_remapping.c file did a rather ugly cast in order to avoid warnings with the previous set_64bit() type model. Removing the ugly cast fixes the warning, and makes everybody happy and expects a set_64bit() to take the logical "u64 *" argument. Pointed-out-by: Peter Anvin <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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*-. \ Merge branches 'x86-rwsem-for-linus' and 'x86-gcc46-for-linus' of ↵Linus Torvalds2010-08-064-18/+14
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-rwsem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, rwsem: Minor cleanups x86, rwsem: Stay on fast path when count > 0 in __up_write() * 'x86-gcc46-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, gcc-4.6: Fix set but not read variables x86, gcc-4.6: Avoid unused by set variables in rdmsr
| | * | x86, gcc-4.6: Fix set but not read variablesAndi Kleen2010-07-202-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just some dead code, no real bugs. Found by gcc 4.6 -Wall Signed-off-by: Andi Kleen <ak@linux.intel.com> LKML-Reference: <201007202219.o6KMJnQ0021072@imap1.linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| | * | x86, gcc-4.6: Avoid unused by set variables in rdmsrAndi Kleen2010-07-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoids quite a lot of warnings with a gcc 4.6 -Wall build because this happens in a commonly used header file (apic.h) Signed-off-by: Andi Kleen <ak@linux.intel.com> LKML-Reference: <201007202219.o6KMJme6021066@imap1.linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | | x86, rwsem: Minor cleanupsMichel Lespinasse2010-07-201-9/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clarified few comments and made initialization of %edx/%rdx more uniform accross __down_write_nested, __up_read and __up_write functions. Signed-off-by: Michel Lespinasse <walken@google.com> LKML-Reference: <201007202219.o6KMJkiA021048@imap1.linux-foundation.org> Acked-by: David Howells <dhowells@redhat.com> Cc: Mike Waychison <mikew@google.com> Cc: Suleiman Souhlal <suleiman@google.com> Cc: Ying Han <yinghan@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | | x86, rwsem: Stay on fast path when count > 0 in __up_write()Michel Lespinasse2010-07-201-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When count > 0 there is no need to take the call_rwsem_wake path. If we did take that path, it would just return without doing anything due to the active count not being zero. Signed-off-by: Michel Lespinasse <walken@google.com> LKML-Reference: <201007202219.o6KMJj9x021042@imap1.linux-foundation.org> Acked-by: David Howells <dhowells@redhat.com> Cc: Mike Waychison <mikew@google.com> Cc: Suleiman Souhlal <suleiman@google.com> Cc: Ying Han <yinghan@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | | | Merge branch 'x86-setup-for-linus' of ↵Linus Torvalds2010-08-0618-52/+422
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, setup: move isdigit.h to ctype.h, header files on top. x86, setup: enable early console output from the decompressor x86, setup: reorganize the early console setup x86, setup: Allow global variables and functions in the decompressor x86, setup: Only set early_serial_base after port is initialized x86, setup: Make the setup code also accept console=uart8250 x86, setup: Early-boot serial I/O support
| * | | | x86, setup: move isdigit.h to ctype.h, header files on top.H. Peter Anvin2010-08-024-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is a subset of <ctype.h> functionality, so name it ctype.h. Also, reorganize header files so #include statements are clustered near the top as they should be. Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <4C5752F2.8030206@kernel.org>
| * | | | x86, setup: enable early console output from the decompressorYinghai Lu2010-08-027-29/+105
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables the decompressor output to be seen on the serial console. Most of the code is shared with the regular boot code. We could add printf to the decompressor if needed, but currently there is no sufficiently compelling user. -v2: define BOOT_BOOT_H to avoid include boot.h -v3: early_serial_base need to be static in misc.c ? -v4: create seperate string.c printf.c cmdline.c early_serial_console.c after hpa's patch that allow global variables in compressed/misc stage -v5: remove printf.c related Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | | x86, setup: reorganize the early console setupYinghai Lu2010-08-027-163/+186
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Separate early_serial_console from tty.c This allows for reuse of early_serial_console.c/string.c/printf.c/cmdline.c in boot/compressed/. -v2: according to hpa, don't include string.c etc -v3: compressed/misc.c must have early_serial_base as static, so move it back to tty.c for setup code Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4C568D2B.205@kernel.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | | | x86, setup: Allow global variables and functions in the decompressorH. Peter Anvin2010-08-023-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order for global variables and functions to work in the decompressor, we need to fix up the GOT in assembly code. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> LKML-Reference: <4C57382E.8050501@zytor.com>
| * | | | x86, setup: Only set early_serial_base after port is initializedYinghai Lu2010-07-141-30/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | putchar is using early_serial_base to check if port is initialized. So we only assign it after early_serial_init() is called, in case we need use VGA to debug early serial console. Also add display for port addr and baud. -v2: update to current tip Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4C3E0171.6050008@kernel.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | | | x86, setup: Make the setup code also accept console=uart8250Yinghai Lu2010-07-132-1/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the boot code also accept the console=uart8250,io,0x2f8,115200n form of early console. Also add back simple_guess_base(), otherwise those simple_strtoull(,,0) are not going to work. Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4C3CCE05.4090505@kernel.org> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | | | x86, setup: Early-boot serial I/O supportPekka Enberg2010-07-124-6/+165
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds serial I/O support to the real-mode setup (very early boot) printf(). It's useful for debugging boot code when running Linux under KVM, for example. The actual code was lifted from early printk. Cc: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> LKML-Reference: <1278835617-11368-1-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | | | | Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds2010-08-0612-32/+80
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Ioremap: fix wrong physical address handling in PAT code x86, tlb: Clean up and correct used type x86, iomap: Fix wrong page aligned size calculation in ioremapping code x86, mm: Create symbolic index into address_markers array x86, ioremap: Fix normal ram range check x86, ioremap: Fix incorrect physical address handling in PAE mode x86-64, mm: Initialize VDSO earlier on 64 bits x86, kmmio/mmiotrace: Fix double free of kmmio_fault_pages
| * | | | | x86: Ioremap: fix wrong physical address handling in PAT codeYasuaki Ishimatsu2010-07-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following two commits fixed a problem that x86 ioremap() doesn't handle physical address higher than 32-bit properly in X86_32 PAE mode. ffa71f33a820d1ab3f2fc5723819ac60fb76080b (x86, ioremap: Fix incorrect physical address handling in PAE mode) 35be1b716a475717611b2dc04185e9d80b9cb693 (x86, ioremap: Fix normal ram range check) But these fixes are not enough, since pat_pagerange_is_ram() in PAT code also has a same problem. This patch fixes it. Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> LKML-Reference: <4C47DDCF.80300@jp.fujitsu.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | | | x86, tlb: Clean up and correct used typeBorislav Petkov2010-07-211-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | smp_processor_id() returns an int and not an unsigned long. Also, since the function is small enough, there's no need for a local variable caching its value. No functionality change, just cleanup. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <20100721124705.GA674@aftab> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | x86, iomap: Fix wrong page aligned size calculation in ioremapping codeFlorian Zumbiehl2010-07-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | x86 early_iounmap(): fix off-by-one error in page alignment of allocation size for sizes where size%PAGE_SIZE==1. Signed-off-by: Florian Zumbiehl <florz@florz.de> LKML-Reference: <201007202219.o6KMJlES021058@imap1.linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | | | | x86, mm: Create symbolic index into address_markers arrayAndres Salomon2010-07-201-6/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Without this, adding entries into the address_markers array means adding more and more of an #ifdef maze in pt_dump_init(). By using indices, we can keep it a bit saner. Signed-off-by: Andres Salomon <dilinger@queued.net> LKML-Reference: <201007202219.o6KMJkUs021052@imap1.linux-foundation.org> Cc: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | | | | x86, ioremap: Fix normal ram range checkKenji Kaneshige2010-07-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check for normal RAM in x86 ioremap() code seems to not work for the last page frame in the specified physical address range. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> LKML-Reference: <4C1AE6CD.1080704@jp.fujitsu.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | | | | x86, ioremap: Fix incorrect physical address handling in PAE modeKenji Kaneshige2010-07-095-16/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current x86 ioremap() doesn't handle physical address higher than 32-bit properly in X86_32 PAE mode. When physical address higher than 32-bit is passed to ioremap(), higher 32-bits in physical address is cleared wrongly. Due to this bug, ioremap() can map wrong address to linear address space. In my case, 64-bit MMIO region was assigned to a PCI device (ioat device) on my system. Because of the ioremap()'s bug, wrong physical address (instead of MMIO region) was mapped to linear address space. Because of this, loading ioatdma driver caused unexpected behavior (kernel panic, kernel hangup, ...). Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> LKML-Reference: <4C1AE680.7090408@jp.fujitsu.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
generated by cgit v1.1 at 2024-12-27 11:04:22 +0000