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2010-04-01microblaze: Print early printk information to log bufferMichal Simek
If early printk console is not enabled then all messages are written to log buffer. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: head.S typo fixMichal Simek
I forget to change register name in comments. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Use MICROBLAZE_TLB_SIZE in asm codeMichal Simek
TLB size was hardcoded in asm code. This patch brings ability to change TLB size only in one place. (mmu.h). Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Kconfig Fix - pciMichal Simek
I forget to remove pci Kconfig option. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Adding likely macrosMichal Simek
On the base on GCOV analytics is helpful to add likely/unlikely macros. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Add .type and .size to ASM functionsMichal Simek
Cachegrind analysis need this fix to be able to log asm functions. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Fix TLB macrosMichal Simek
To be able to do trace TLB operations. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Use instruction with delay slotMichal Simek
Sync labels. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Remove additional resr and rear loadingMichal Simek
RESR and REAR uses the same regs in whole file. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Change register usage for ESR and EARMichal Simek
This change synchronize register usage in code. ESR = R4 EAR = R3 Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Prepare work for optimization in exception codeMichal Simek
Any sync branch must follow mts instructions not mfs. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Add DEBUG optionMichal Simek
Disable debug option in asm code. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Support systems without lmb bramMichal Simek
When the system has no lmb bram, main memory should be start from zero because of microblaze vectors. DTS fragment could look like: DDR2_SDRAM: memory@0 { device_type = "memory"; reg = < 0x0 0x10000000 >; } ; Then you have to setup CONFIG_KERNEL_BASE_ADDR=0 which caused that kernel physical start address will be zero. On reset vector place will be jump to 0x100 and on 0x100 starts kernel text. You have to solve how to load the kernel before cpu starts. Tested with XMD. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: Sync strlen, strnlen, copy_to/from_userMichal Simek
Last sync. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: Unify __copy_tofrom_userMichal Simek
Move to generic location. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: Move functions to generic locationMichal Simek
noMMU and MMU use them. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: Fix put_user for noMMUMichal Simek
Here is small regression on dhrystone tests and I think that on all benchmarking tests. It is due to better checking mechanism in put_user macro Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: Fix get_user macro for noMMUMichal Simek
Use unified version. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: fix clear_user for noMMU kernelMichal Simek
Previous patches fixed only MMU version and this is the first patch for noMMU kernel Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: Fix strncpy_from_user functionMichal Simek
Generic implementation for noMMU and MMU version Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: fix copy_from_user macroMichal Simek
copy_from_user macro also use copy_tofrom_user function Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: copy_to_user unificationMichal Simek
noMMU and MMU kernel will use copy copy_tofrom_user asm implementation. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: sync put/get/clear_user macrosMichal Simek
Add macro description and resort. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: fix put_user and get_user macrosMichal Simek
Use FIXUP macros and resort them. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: fix __get_user_asm macroMichal Simek
It is used __FIXUP_SECTION and __EX_TABLE_SECTION macros. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: uaccess: fix clean user macroMichal Simek
This is the first patch which does uaccess unification. I choosed to do several patches to be able to use bisect in future if any fault happens. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: move noMMU __range_ok function to uaccess.hMichal Simek
The same noMMU and MMU functions should be placed in one file. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Move exception_table_entry upwardMichal Simek
Just sort to be able remove whole block. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Remove segment.hMichal Simek
I would like to use asm-generic uaccess.h where are segment macros defined. This is just first step. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Remove memset in free_init_pagesMichal Simek
We don't need to do it. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Makefile cleanupsArun Bhanu
If CONFIG_INITRAMFS_SOURCE is set, "scripts/gen_initramfs_list.sh" checks if the cpio image exists. Remove the duplicate check from the Makefile. Remove the "clean-kernel" variable which is unused in the Makefile and is not used by the Kbuild. Signed-off-by: Arun Bhanu <arun@bhanu.net> Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Fix Makefile to delete build generated filesArun Bhanu
'make clean' does not to delete the following build generated file: arch/microblaze/boot/linux.bin.ub 'make mrproper' does not to delete the following build generated files: arch/microblaze/boot/simpleImage.* Fix the Makefile to delete these build generated files. See [1] for a discussion on why simpleImage.* files are deleted with 'make mrproper' and not with 'make clean'. [1] http://lkml.org/lkml/2010/3/12/96 Signed-off-by: Arun Bhanu <arun@bhanu.net> Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Add a missing single quote to make 'make help' happyArun Bhanu
'make ARCH=microblaze help' fails with the following error due to a missing single quote. /bin/sh: -c: line 0: unexpected EOF while looking for matching `'' /bin/sh: -c: line 1: syntax error: unexpected end of file make: *** [help] Error 2 Signed-off-by: Arun Bhanu <arun@bhanu.net> Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Fix "kstack=" parsingSteven J. Magnani
The "kstack=" command line parameter is not parsed correctly. All proper values are interpreted as zero. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01x86,kgdb: Always initialize the hw breakpoint attributeJason Wessel
It is required to call hw_breakpoint_init() on an attr before using it in any other calls. This fixes the problem where kgdb will sometimes fail to initialize on x86_64. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: 2.6.33 <stable@kernel.org> LKML-Reference: <1269975907-27602-1-git-send-email-jason.wessel@windriver.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-04-01perf: Use hot regs with software sched switch/migrate eventsFrederic Weisbecker
Scheduler's task migration events don't work because they always pass NULL regs perf_sw_event(). The event hence gets filtered in perf_swevent_add(). Scheduler's context switches events use task_pt_regs() to get the context when the event occured which is a wrong thing to do as this won't give us the place in the kernel where we went to sleep but the place where we left userspace. The result is even more wrong if we switch from a kernel thread. Use the hot regs snapshot for both events as they belong to the non-interrupt/exception based events family. Unlike page faults or so that provide the regs matching the exact origin of the event, we need to save the current context. This makes the task migration event working and fix the context switch callchains and origin ip. Example: perf record -a -e cs Before: 10.91% ksoftirqd/0 0 [k] 0000000000000000 | --- (nil) perf_callchain perf_prepare_sample __perf_event_overflow perf_swevent_overflow perf_swevent_add perf_swevent_ctx_event do_perf_sw_event __perf_sw_event perf_event_task_sched_out schedule run_ksoftirqd kthread kernel_thread_helper After: 23.77% hald-addon-stor [kernel.kallsyms] [k] schedule | --- schedule | |--60.00%-- schedule_timeout | wait_for_common | wait_for_completion | blk_execute_rq | scsi_execute | scsi_execute_req | sr_test_unit_ready | | | |--66.67%-- sr_media_change | | media_changed | | cdrom_media_changed | | sr_block_media_changed | | check_disk_change | | cdrom_open v2: Always build perf_arch_fetch_caller_regs() now that software events need that too. They don't need it from modules, unlike trace events, so we keep the EXPORT_SYMBOL in trace_event_perf.c Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net>
2010-04-01perf: Correctly align perf event tracing bufferFrederic Weisbecker
The trace event buffer used by perf to record raw sample events is typed as an array of char and may then not be aligned to 8 by alloc_percpu(). But we need it to be aligned to 8 in sparc64 because we cast this buffer into a random structure type built by the TRACE_EVENT() macro to store the traces. So if a random 64 bits field is accessed inside, it may be not under an expected good alignment. Use an array of long instead to force the appropriate alignment, and perform a compile time check to ensure the size in byte of the buffer is a multiple of sizeof(long) so that its actual size doesn't get shrinked under us. This fixes unaligned accesses reported while using perf lock in sparc 64. Suggested-by: David Miller <davem@davemloft.net> Suggested-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Steven Rostedt <rostedt@goodmis.org>
2010-04-01drm/radeon/kms: enable ACPI powermanagement mode on radeon gpus.Dave Airlie
Some GPUs have an APM/ACPI PM mode selection switch and some BIOSes set this to APM. We really want this in ACPI mode for Linux. Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-04-01drm/radeon/kms: rs400/480 should set common registers.Dave Airlie
These GPUs should be setting these registers up also. Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-04-01drm/radeon/kms: add sanity check to wptr.Dave Airlie
If we resume in a bad way, we'll get 0xffffffff in wptr, and then oops with no console. This just adds a sanity check so that we can avoid the oops and hopefully get more details out of people's systems. Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-04-01drm/radeon/kms/evergreen: get DP workingAlex Deucher
Need to enable the VID stream after link training Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-03-31Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2010-03-31sparc: Fix regset register window handling.David S. Miller
We have to adjust 'reg_window' down by 16 becuase the 'pos' iterator we'll use to index into the stack slots will be between 16 and 32. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-31x86: Make e820_remove_range to handle all covered caseYinghai Lu
Rusty found on lguest with trim_bios_range, max_pfn is not right anymore, and looks e820_remove_range does not work right. [ 0.000000] BIOS-provided physical RAM map: [ 0.000000] LGUEST: 0000000000000000 - 0000000004000000 (usable) [ 0.000000] Notice: NX (Execute Disable) protection missing in CPU or disabled in BIOS! [ 0.000000] DMI not present or invalid. [ 0.000000] last_pfn = 0x3fa0 max_arch_pfn = 0x100000 [ 0.000000] init_memory_mapping: 0000000000000000-0000000003fa0000 root cause is: the e820_remove_range doesn't handle the all covered case. e820_remove_range(BIOS_START, BIOS_END - BIOS_START, ...) produces a bogus range as a result. Make it match e820_update_range() by handling that case too. Reported-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Tested-by: Rusty Russell <rusty@rustcorp.com.au> LKML-Reference: <4BB18E55.6090903@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-03-31IB/cm: Fix device_create() return value checkJani Nikula
Use IS_ERR() instead of comparing to NULL. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-03-31eeepc-wmi: new driver for WMI based hotkeys on Eee PC laptopsYong Wang
Add a WMI driver for Eee PC laptops. Currently it only supports hotkeys. Signed-off-by: Yong Wang <yong.y.wang@intel.com> Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Dmitry Torokhov <dtor@mail.ru>
2010-03-31asus-laptop: fix warning in asus_handle_initCorentin Chary
In function 'asus_laptop_get_info': warning: passing argument 3 of 'asus_handle_init' from incompatible pointer type note: expected 'char **' but argument is of type 'const char **' Introduced by commit c21085108a02e1b838c34f3650c8cc9fbd178615 ("asus-laptop: fix style problems reported by checkpath.pl"). Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2010-03-31fat: fix buffer overflow in vfat_create_shortname()Nikolaus Schulz
When using the string representation of a random counter as part of the base name, ensure that it is no longer than 4 bytes. Since we are repeatedly decrementing the counter in a loop until we have found a unique base name, the counter may wrap around zero; therefore, it is not enough to mask its higher bits before entering the loop, this must be done inside the loop. [hirofumi@mail.parknet.co.jp: use snprintf()] Signed-off-by: Nikolaus Schulz <microschulz@web.de> Cc: stable@kernel.org Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-31genirq: Force MSI irq handlers to run with interrupts disabledThomas Gleixner
Network folks reported that directing all MSI-X vectors of their multi queue NICs to a single core can cause interrupt stack overflows when enough interrupts fire at the same time. This is caused by the fact that we run interrupt handlers by default with interrupts enabled unless the driver reuqests the interrupt with the IRQF_DISABLED set. The NIC handlers do not set this flag, so simultaneous interrupts can nest unlimited and cause the stack overflow. The only safe counter measure is to run the interrupt handlers with interrupts disabled. We can't switch to this mode in general right now, but it is safe to do so for MSI interrupts. Force IRQF_DISABLED for MSI interrupt handlers. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andi Kleen <andi@firstfloor.org> Cc: Linus Torvalds <torvalds@osdl.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: David Miller <davem@davemloft.net> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: stable@kernel.org
2010-03-31bonding: bond_xmit_roundrobin() fixEric Dumazet
Commit a2fd940f (bonding: fix broken multicast with round-robin mode) added a problem on litle endian machines. drivers/net/bonding/bond_main.c:4159: warning: comparison is always false due to limited range of data type Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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