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* [MIPS] setup.c: use __pa_symbol() where neededFranck Bui-Huu2006-11-29
| | | | | | | It should fix the broken code in resource_init() too. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] setup.c: get ride of CPHYSADDR()Franck Bui-Huu2006-11-29
| | | | | | | | | and use new __pa() implementation instead introduced by the previous patch. Indeed this macro can be used now even by the 64 bit kernels with CONFIG_BUILD_ELF64=n config. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] page.h: remove __pa() usages.Franck Bui-Huu2006-11-29
| | | | | | | | | | | | | | | | | | __pa() was used by virt_to_page() and virt_addr_valid(). These latter are used when kernel is initialised so __pa() is not appropriate, we use virt_to_phys() instead. Futhermore __pa() is going to take care of CKSEG0/XKPHYS address mix for 64 bit kernels. This makes __pa() more complex than virt_to_phys() and this extra work is not needed by virt_to_page() and virt_addr_valid(). Eventually it consolidates virt_to_phys() prototype by making its argument 'const'. this avoids some warnings that was due to some virt_to_page() usages which pass const pointer. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-11-29
|\ | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3943/1: share declaration of struct pxa2xx_udc_mach_info between multiple platforms [ARM] Export smp_call_function() [ARM] Add PM_LEGACY defaults
| * [ARM] Export smp_call_function()Russell King2006-11-26
| | | | | | | | | | | | | | smp_call_function() will be used with the MP/core oprofile support patch. Export it as _GPL. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] Add PM_LEGACY defaultsRussell King2006-11-26
| | | | | | | | | | | | | | | | | | | | | | Eliminate two warnings: kernel/power/pm.c:205: warning: 'pm_register' is deprecated (declared at kernel/power/pm.c:64) kernel/power/pm.c:206: warning: 'pm_send_all' is deprecated (declared at kernel/power/pm.c:180) by updating defconfig files to contain a sensible PM_LEGACY default. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [MIPS] Do topology_init even on uniprocessor kernels.Ralf Baechle2006-11-29
| | | | | | | | | | | | Otherwise CPU 0 doesn't show up in sysfs which breaks some software. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds2006-11-28
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: [PATCH] x86-64: Use stricter in process stack check for unwinder [PATCH] i386: Fix compilation with UP genericarch [PATCH] x86-64: Fix warning in io_apic.c [PATCH] x86-64: work around gcc4 issue with -Os in Dwarf2 stack unwind [PATCH] x86_64: Align data segment to PAGE_SIZE boundary
| * | [PATCH] x86-64: Use stricter in process stack check for unwinderAndi Kleen2006-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously it would check for alignment only, which could break if the stack pointer was unaligned. Now explicitely check if the stack pointer is in the stack page of the current process. Ported from i386. Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86-64: Fix warning in io_apic.cAndi Kleen2006-11-28
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* | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2006-11-28
|\ \ | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Fix Bonito bootup message.
| * | [MIPS] Fix Bonito bootup message.Ralf Baechle2006-11-28
| |/ | | | | | | | | | | | | Even when enabling Bonito IOBC coherence the kernel would actually claim it was disabling it. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* / [PATCH] x86_64: fix 'earlyprintk=...,keep' regressionIngo Molnar2006-11-28
|/ | | | | | | | | | | Commit 2c8c0e6b8d7700a990da8d24eff767f9ca223b96 ("[PATCH] Convert x86-64 to early param") broke the earlyprintk=...,keep feature. This restores that functionality. Tested on x86_64. Must-have for v2.6.19, no risk. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: make execvp safe for our usagePaolo 'Blaisorblade' Giarrusso2006-11-25
| | | | | | | | | | | | | | | | | | | | | Reimplement execvp for our purposes - after we call fork() it is fundamentally unsafe to use the kernel allocator - current is not valid there. So we simply pass to our modified execvp() a preallocated buffer. This fixes a real bug and works very well in testing (I've seen indirectly warning messages from the forked thread - they went on the pipe connected to its stdout and where read as a number by UML, when calling read_output(). I verified the obtained number corresponded to "BUG:"). The added use of __cant_sleep() is not a new bug since __cant_sleep() is already used in the same function - passing an atomicity parameter would be better but it would require huge change, stating that this function must not be called in atomic context and can sleep is a better idea (will make sure of this gradually). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-11-23
|\ | | | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3941/1: [Jornada7xx] - Addition to MAINTAINERS [ARM] 3942/1: ARM: comment: consistent_sync should not be called directly [ARM] ebsa110: fix warnings generated by asm/arch/io.h [ARM] 3933/1: Source drivers/ata/Kconfig
| * [ARM] 3942/1: ARM: comment: consistent_sync should not be called directlyDan Williams2006-11-22
| | | | | | | | | | | | | | | | | | | | | | /* * Note: Drivers should NOT use this function directly, as it will break * platforms with CONFIG_DMABOUNCE. * Use the driver DMA support - see dma-mapping.h (dma_sync_*) */ Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] ebsa110: fix warnings generated by asm/arch/io.hRussell King2006-11-20
| | | | | | | | | | | | | | | | Remove two warnings: drivers/serial/8250_early.c:136: warning: unused variable 'mapsize' include/linux/io.h:47: warning: passing argument 1 of '__readb' discards qualifiers from pointer target type Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 3933/1: Source drivers/ata/KconfigMartin Michlmayr2006-11-20
| | | | | | | | | | | | | | | | | | | | ARM doesn't source drivers/Kconfig like most architectures do, so the newly added drivers/ata is currently not made available on ARM. SATA is used on some ARM machines, like the Thecus N2100, so we need to source drivers/ata/Kconfig. Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [MIPS] Hack for SB1 cache issuesThiemo Seufer2006-11-22
| | | | | | | | | | | | | | | | | | Removing flush_icache_page a while ago broke SB1 which was using an empty flush_data_cache_page function. This glues things well enough so a more efficient but also more intrusive solution can be found later. Signed-Off-By: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | Merge branch 'merge' of ↵Linus Torvalds2006-11-21
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix ucc_geth of_device discovery on mpc832x [POWERPC] Revert "[POWERPC] Add powerpc get/set_rtc_time interface to new generic rtc class" [POWERPC] Revert "[POWERPC] Enable generic rtc hook for the MPC8349 mITX"
| * | [POWERPC] Fix ucc_geth of_device discovery on mpc832xKim Phillips2006-11-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | mpc832x, as in mpc8360, needs to explicitly find and create the platform device for ucc_geth in 2.6.19. This code will likely be readapted to Benh's new of_ methods for 2.6.20. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [POWERPC] Revert "[POWERPC] Add powerpc get/set_rtc_time interface to new ↵Kim Phillips2006-11-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | generic rtc class" This reverts commit 7a69af63e788a324d162201a0b23df41bcf158dd. As advised by David Brownell: http://marc.theaimsgroup.com/?l=linux-kernel&m=116387226902131&w=2 Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [POWERPC] Revert "[POWERPC] Enable generic rtc hook for the MPC8349 mITX"Kim Phillips2006-11-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit a8ed4f7ec3aa472134d7de6176f823b2667e450b. As advised by David Brownell: http://marc.theaimsgroup.com/?l=linux-kernel&m=116387226902131&w=2 Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | | [PATCH] x86_64: Align data segment to PAGE_SIZE boundaryVivek Goyal2006-11-21
|/ / | | | | | | | | | | | | | | | | | | o Explicitly align data segment to PAGE_SIZE boundary otherwise depending on config options and tool chain it might be placed on a non PAGE_SIZE aligned boundary and vmlinux loaders like kexec fail when they encounter a PT_LOAD type segment which is not aligned to PAGE_SIZE boundary. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* | [PATCH] m68knommu: fix up for the irq_handler_t changesGreg Ungerer2006-11-20
| | | | | | | | | | | | | | | | | | | | Switch to using irq_handler_t for interrupt function handler pointers. Change name of m68knommu's irq_hanlder_t data structure so it doesn't clash with the common type (include/linux/interrupt.h). Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] x86_64: fix memory hotplug build with NUMA=nYasunori Goto2006-11-20
|/ | | | | | | | | | | | | | | | | | | | | | This is to fix compile error of x86-64 memory hotplug without any NUMA option. CC arch/x86_64/mm/init.o arch/x86_64/mm/init.c:501: error: redefinition of 'memory_add_physaddr_to_nid' include/linux/memory_hotplug.h:71: error: previous definition of 'memory_add_phys addr_to_nid' was here arch/x86_64/mm/init.c:509: error: redefinition of 'memory_add_physaddr_to_nid' arch/x86_64/mm/init.c:501: error: previous definition of 'memory_add_physaddr_to_ nid' was here I confirmed compile completion with !NUMA, (NUMA & !ACPI_NUMA), or (NUMA & ACPI_NUMA). Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Acked-by: Andi Kleen <ak@suse.de> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* x86: be more careful when walking back the frame pointer chainLinus Torvalds2006-11-17
| | | | | | | | | | | | | | | | When showing the stack backtrace, make sure that we never accept not only an unchanging frame pointer, but also a frame pointer that moves back down the stack frame. It must always grow up (toward older stack frames). I doubt this has triggered, but a subtly corrupt stack with extremely unlucky contents could cause us to loop forever on a bogus endless frame pointer chain. This review was triggered by much worse problems happening in some of the other stack unwinding code. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386/x86_64: ACPI cpu_idle_wait() fixIngo Molnar2006-11-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The scheduler on Andreas Friedrich's hyperthreading system stopped working properly: the scheduler would never move tasks to another CPU! The lask known working kernel was 2.6.8. After a couple of attempts to corner the bug, the following smoking gun was found: BIOS reported wrong ACPI idfor the processor CPU#1: set_cpus_allowed(), swapper:1, 3 -> 2 [<c0103bbe>] show_trace_log_lvl+0x34/0x4a [<c0103ceb>] show_trace+0x2c/0x2e [<c01045f8>] dump_stack+0x2b/0x2d [<c0116a77>] set_cpus_allowed+0x52/0xec [<c0101d86>] cpu_idle_wait+0x2e/0x100 [<c0259c57>] acpi_processor_power_exit+0x45/0x58 [<c0259752>] acpi_processor_remove+0x46/0xea [<c025c6fb>] acpi_start_single_object+0x47/0x54 [<c025cee5>] acpi_bus_register_driver+0xa4/0xd3 [<c04ab2d7>] acpi_processor_init+0x57/0x77 [<c01004d7>] init+0x146/0x2fd [<c0103a87>] kernel_thread_helper+0x7/0x10 a quick look at cpu_idle_wait() shows how broken that code is on i386: it changes the init task's affinity map but never restores it ... and because all userspace tasks get forked by init, they all inherited that single-CPU affinity mask. x86_64 cloned this bug too. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Andreas Friedrich <andreas.friedrich@fujitsu-siemens.com> Cc: Wolfgang Erig <Wolfgang.Erig@fujitsu-siemens.com> Cc: Andrew Morton <akpm@osdl.org> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: stack unwinder crash fixIngo Molnar2006-11-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the new dwarf2 unwinder crashes while trying to dump the stack: Leftover inexact backtrace: Unable to handle kernel paging request at ffffffff82800000 RIP: [<ffffffff8026cf26>] dump_trace+0x35b/0x3d2 PGD 203027 PUD 205027 PMD 0 Oops: 0000 [2] PREEMPT SMP CPU 0 Modules linked in: Pid: 30, comm: khelper Not tainted 2.6.19-rc6-rt1 #11 RIP: 0010:[<ffffffff8026cf26>] [<ffffffff8026cf26>] dump_trace+0x35b/0x3d2 RSP: 0000:ffff81003fb9d848 EFLAGS: 00010006 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff805b3520 RDI: 0000000000000000 RBP: ffffffff827ffff9 R08: ffffffff80aad000 R09: 0000000000000005 R10: ffffffff80aae000 R11: ffffffff8037961b R12: ffff81003fb9d858 R13: 0000000000000000 R14: ffffffff80598460 R15: ffffffff80ab1fc0 FS: 0000000000000000(0000) GS:ffffffff806c4200(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: ffffffff82800000 CR3: 0000000000201000 CR4: 00000000000006e0 this crash happened because it did not sanitize the dwarf2 data it got, and got an unaligned stack pointer - which happily walked past the process stack (and eventually reached the end of kernel memory and pagefaulted there) due to this naive iteration condition: HANDLE_STACK (((long) stack & (THREAD_SIZE-1)) != 0); note that i386 is alot more conservative when it comes to trusting stack pointers: static inline int valid_stack_ptr(struct thread_info *tinfo, void *p) { return p > (void *)tinfo && p < (void *)tinfo + THREAD_SIZE - 3; } but the x86_64 code did not take this bit of i386 code. The fix is to align the stack pointer. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Cc: Jan Beulich <jbeulich@novell.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: fix CONFIG_CC_STACKPROTECTOR build bugIngo Molnar2006-11-16
| | | | | | | | | | | | | | | | | on x86_64, the CONFIG_CC_STACKPROTECTOR build fails if used in a distcc setup that has "CC" defined to "distcc gcc": gcc: gcc: linker input file unused because linking not done gcc: gcc: linker input file unused because linking not done gcc: gcc: linker input file unused because linking not done this is because the gcc-x86_64-has-stack-protector.sh script has a 2-parameters assumption. Fix this by passing $(CC) as a single parameter. Signed-off-by: Ingo Molnar <mingo@elte.hu> Please-Use-Me-More: make randconfig Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86-64: Fix vsyscall.c compilation on UPAndi Kleen2006-11-16
| | | | | | | Broken by earlier patch by me. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-11-16
|\ | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] Remove OP_MAX_COUNTER [ARM] Remove PM_LEGACY=y from selected ARM defconfigs [ARM] 3857/2: pnx4008: add devices' registration
| * [ARM] Remove OP_MAX_COUNTERRussell King2006-11-14
| | | | | | | | | | | | | | OP_MAX_COUNTER never referenced, and is a reminant of an earlier oprofile implementation. Remove it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] Remove PM_LEGACY=y from selected ARM defconfigsRussell King2006-11-11
| | | | | | | | | | | | | | | | Most ARM defconfigs don't actually need to have PM_LEGACY enabled. Disable it for ATEB9200, Collie, IXP4xx, OMAP H2, S3C2410 and Versatile. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 3857/2: pnx4008: add devices' registrationVitaly Wool2006-11-09
| | | | | | | | | | | | | | | | | | | | | | This patch adds platform devices' registration for the devices which drivers either have been added to the mainline or on the way to. arch/arm/mach-pnx4008/core.c | 69 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [IA64] a fix towards allmodconfig buildLuck, Tony2006-11-16
| | | | | | | | | | | | | | | | The HP_SIMSCSI driver can't be built as a module (unhealthy dependencies on things that shouldn't really be exported). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64] use generic_handle_irq()Ingo Molnar2006-11-16
| | | | | | | | | | | | | | | | Use generic_handle_irq() to handle mixed-type irq handling. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64] typename -> name conversionIngo Molnar2006-11-16
| | | | | | | | | | | | | | | | convert irq chip typename -> name. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64] irqs: use `name' not `typename'Andrew Morton2006-11-16
| | | | | | | | | | | | | | `typename' is going away and is usually uninitialised anwyay. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64] bte_unaligned_copy() transfers one extra cache line.Robin Holt2006-11-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When called to do a transfer that has a start offset within the cache line which is uneven between source and destination and a length which terminates the source of the copy exactly on a cache line, one extra line gets copied into a temporary buffer. This is normally not an issue since the buffer is a kernel buffer and only the requested information gets copied into the user buffer. The problem arises when the source ends at the very last physical page of memory. That last cache line does not exist and results in the SHUB chip raising an MCA. Signed-off-by: Robin Holt <holt@sgi.com> Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [PATCH] Use delayed disable mode of ioapic edge triggered interruptsEric W. Biederman2006-11-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Komuro reports that ISA interrupts do not work after a disable_irq(), causing some PCMCIA drivers to not work, with messages like eth0: Asix AX88190: io 0x300, irq 3, hw_addr xx:xx:xx:xx:xx:xx eth0: found link beat eth0: autonegotiation complete: 100baseT-FD selected eth0: interrupt(s) dropped! eth0: interrupt(s) dropped! eth0: interrupt(s) dropped! ... Linus Torvalds <torvalds@osdl.org> said: "Now, edge-triggered interrupts are a _lot_ harder to mask, because the Intel APIC is an unbelievable piece of sh*t, and has the edge-detect logic _before_ the mask logic, so if a edge happens _while_ the device is masked, you'll never ever see the edge ever again (unmasking will not cause a new edge, so you simply lost the interrupt). So when you "mask" an edge-triggered IRQ, you can't really mask it at all, because if you did that, you'd lose it forever if the IRQ comes in while you masked it. Instead, we're supposed to leave it active, and set a flag, and IF the IRQ comes in, we just remember it, and mask it at that point instead, and then on unmasking, we have to replay it by sending a self-IPI." This trivial patch solves the problem. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Ingo Molnar <mingo@redhat.com> Acked-by: Komuro <komurojun-mbn@nifty.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds2006-11-14
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: [PATCH] x86-64: Fix race in exit_idle [PATCH] x86-64: Fix vgetcpu when CONFIG_HOTPLUG_CPU is disabled [PATCH] x86: Add acpi_user_timer_override option for Asus boards [PATCH] x86-64: setup saved_max_pfn correctly (kdump) [PATCH] x86-64: Handle reserve_bootmem_generic beyond end_pfn [PATCH] x86-64: shorten the x86_64 boot setup GDT to what the comment says [PATCH] x86-64: Fix PTRACE_[SG]ET_THREAD_AREA regression with ia32 emulation. [PATCH] x86-64: Fix partial page check to ensure unusable memory is not being marked usable. Revert "[PATCH] MMCONFIG and new Intel motherboards"
| * | [PATCH] x86-64: Fix race in exit_idleAndi Kleen2006-11-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When another interrupt happens in exit_idle the exit idle notifier could be called an incorrect number of times. Add a test_and_clear_bit_pda and use it handle the bit atomically against interrupts to avoid this. Pointed out by Stephane Eranian Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86-64: Fix vgetcpu when CONFIG_HOTPLUG_CPU is disabledAndi Kleen2006-11-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The vgetcpu per CPU initialization previously relied on CPU hotplug events for all CPUs to initialize the per CPU state. That only worked only on kernels with CONFIG_HOTPLUG_CPU enabled. On the others some CPUs didn't get their state initialized properly and vgetcpu wouldn't work. Change the initialization sequence to instead run in a normal initcall (which runs after the normal CPU bootup) and initialize all running CPUs there. Later hotplug CPUs are still handled with an hotplug notifier. This actually simplifies the code somewhat. Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86: Add acpi_user_timer_override option for Asus boardsAndi Kleen2006-11-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Timer overrides are normally disabled on Nvidia board because they are commonly wrong, except on new ones with HPET support. Unfortunately there are quite some Asus boards around that don't have HPET, but need a timer override. We don't know yet how to handle this transparently, but at least add a command line option to force the timer override and let them boot. Cc: len.brown@intel.com Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86-64: setup saved_max_pfn correctly (kdump)Magnus Damm2006-11-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | x86_64: setup saved_max_pfn correctly 2.6.19-rc4 has broken CONFIG_CRASH_DUMP support on x86_64. It is impossible to read out the kernel contents from /proc/vmcore because saved_max_pfn is set to zero instead of the max_pfn value before the user map is setup. This happens because saved_max_pfn is initialized at parse_early_param() time, and at this time no active regions have been registered. save_max_pfn is setup from e820_end_of_ram(), more exact find_max_pfn_with_active_regions() which returns 0 because no regions exist. This patch fixes this by registering before and removing after the call to e820_end_of_ram(). Signed-off-by: Magnus Damm <magnus@valinux.co.jp> Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86-64: Handle reserve_bootmem_generic beyond end_pfnAndi Kleen2006-11-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This can happen on kexec kernels with some configurations, in particularly on Unisys ES7000 systems. Analysis by Amul Shah Cc: Amul Shah <amul.shah@unisys.com> Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86-64: shorten the x86_64 boot setup GDT to what the comment saysSteven Rostedt2006-11-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Stephen Tweedie, Herbert Xu, and myself have been struggling with a very nasty bug in Xen. But it also pointed out a small bug in the x86_64 kernel boot setup. The GDT limit being setup by the initial bzImage code when entering into protected mode is way too big. The comment by the code states that the size of the GDT is 2048, but the actual size being set up is much bigger (32768). This happens simply because of one extra '0'. Instead of setting up a 0x800 size, 0x8000 is set up. On bare metal this is fine because the CPU wont load any segments unless they are explicitly used. But unfortunately, this breaks Xen on vmx FV, since it (for now) blindly loads all the segments into the VMCS if they are less than the gdt limit. Since the real mode segments are around 0x3000, we are getting junk into the VMCS and that later causes an exception. Stephen Tweedie has written up a patch to fix the Xen side and will be submitting that to those folks. But that doesn't excuse the GDT limit being a magnitude too big. AK: changed to compute true gdt size in assembler, fixed comment Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86-64: Fix PTRACE_[SG]ET_THREAD_AREA regression with ia32 emulation.Andi Kleen2006-11-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ptrace(PTRACE_[SG]ET_THREAD_AREA) calls from ia32 code should be passed onto the x86_64 implementation. The default case in sys32_ptrace used to call to sys_ptrace(), but is now EINVAL. This patch fixes a regression caused by that changed. Signed-off-by: Mike McCormack <mike@codeweavers.com> Signed-off-by: Andi Kleen <ak@suse.de>
| * | [PATCH] x86-64: Fix partial page check to ensure unusable memory is not ↵Aaron Durbin2006-11-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | being marked usable. Fix partial page check in e820_register_active_regions to ensure partial pages are not being marked as active in the memory pool. Signed-off-by: Aaron Durbin <adurbin@google.com> Signed-off-by: Andi Kleen <ak@suse.de>
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