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* gitignore usr/initramfs_data.cpio.bz2 and usr/initramfs_data.cpio.lzmaJaswinder Singh Rajput2009-09-201-0/+2
| | | | | | | | | usr/initramfs_data.cpio.bz2 and usr/initramfs_data.cpio.lzma are binary files should be ignored Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: Check if linker supports the -X optionAndi Kleen2009-09-201-1/+1
| | | | | | | | | | The new alternative `gold' linker in recent binutils doesn't support the -X option. This breaks allyesconfig builds that have CONFIG_STRIP_ASM_SYMS enabled. Check if the linker really supports the option using ld-option. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: introduce ld-optionSam Ravnborg2009-09-202-1/+21
| | | | | | | | | | | ld-option is used to check if $(LD) supports a specific option. Based on patch from Andi Kleen. Cc: Andi Kleen <ak@linux.intel.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> First use is to check if option -X is supported (upcoming patch). Theis is ne
* kbuild: rename ld-option to cc-ldoptionSam Ravnborg2009-09-2010-14/+14
| | | | | | | | | ld-option is misnamed as it test options to gcc, not to ld. Renamed it to reflect this. Cc: Andi Kleen <andi@firstfloor.org> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: make use of menu_get_ext_help in gconfigCheng Renquan2009-09-202-18/+6
| | | | | | | | | Futhermore, gconfig interface lack the "search a symbol" function, do later. Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> [sam: fix SEGV in gconfig] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: make use of menu_get_ext_help in "make config"Cheng Renquan2009-09-201-11/+11
| | | | | | Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: make use of menu_get_ext_help in qconfigCheng Renquan2009-09-201-6/+4
| | | | | | Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: make use of menu_get_ext_help in menuconfigCheng Renquan2009-09-201-75/+3
| | | | | | | | | The removed functions are moved into menu.c for sharing with gconfig & xconfig & config. Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: add menu_get_ext_help function to display more informationCheng Renquan2009-09-202-0/+81
| | | | | | | | | | | | | The three functions are moved from mconf.c, then they can be shared in all menuconfig & gconfig & xconfig & config. +void menu_get_ext_help(struct menu *menu, struct gstr *help) +static void get_prompt_str(struct gstr *r, struct property *prop) +void get_symbol_str(struct gstr *r, struct symbol *sym) Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: add symbol value to help find the real dependCheng Renquan2009-09-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes when configuring need to disable some unused item, but the item is selected by many other items, it's hard to find the real dependency which selected it, This patch add every symbol's value accompanied to make it possible to find the real dependency easily. An example is CONFIG_RFKILL, ---------------------- RF switch subsystem support ---------------------- | CONFIG_RFKILL: | | | | Say Y here if you want to have control over RF switches | | found on many WiFi and Bluetooth cards. | | | | To compile this driver as a module, choose M here: the | | module will be called rfkill. | | | | Symbol: RFKILL [=m] | | Prompt: RF switch subsystem support | | Defined at net/rfkill/Kconfig:4 | | Depends on: NET [=y] | | Location: | | -> Networking support (NET [=y]) | | Selected by: IWLCORE [=n] && NETDEVICES [=y] && !S390 [=S390] && PC | | | ----------------------------------------------------------------( 99%)--- Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: correct initramfs compression commentRobert P. J. Day2009-09-201-1/+1
| | | | | | | Fix the Makefile comment since bzip2 is now supported. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kbuild: save ARCH & CROSS_COMPILE when building a kernelSam Ravnborg2009-09-201-2/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When building a kernel for a different architecture kbuild requires the user always to specify ARCH and CROSS_COMPILE on the command-line. We use the asm symlink to detect if user forgets to specify the correct ARCH value - but that symlink is about to die. And we do now want to loose this check. This patch save the settings of ARCH and CROSS_COMPILE in two files named: include/generated/kernel.arch include/generated/kernel.cross The settings are saved during "make *config" time and always read. If user try to change the settings we error out. This works both for plain builds and for O=... builds. So now you can do: $ mkdir sparc64 $ make O=sparc64 ARCH=sparc64 CROSS_COMPILE=sparc64-linux- defconfig $ cd sparc64 $ make Notice that you no longer need to tell kbuild the settings of ARCH and CROSS_COMPILE when you type make in the output directory. Likewise for plain builds where you do not use O=... Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roland McGrath <roland@redhat.com>
* kbuild: use INSTALLKERNEL to select customized installkernel scriptSam Ravnborg2009-09-2017-32/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the use of CROSS_COMPILE to select a customized installkernel script with the possibility to set INSTALLKERNEL to select a custom installkernel script when running make: make INSTALLKERNEL=arm-installkernel install With this patch we are now more consistent across different architectures - they did not all support use of CROSS_COMPILE. The use of CROSS_COMPILE was a hack as this really belongs to gcc/binutils and the installkernel script does not change just because we change toolchain. The use of CROSS_COMPILE caused troubles with an upcoming patch that saves CROSS_COMPILE when a kernel is built - it would no longer be installable. [Thanks to Peter Z. for this hint] This patch undos what Ian did in commit: 0f8e2d62fa04441cd12c08ce521e84e5bd3f8a46 ("use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh") The patch has been lightly tested on x86 only - but all changes looks obvious. Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin] Acked-by: Russell King <linux@arm.linux.org.uk> [arm] Acked-by: Paul Mundt <lethal@linux-sh.org> [sh] Acked-by: "H. Peter Anvin" <hpa@zytor.com> [x86] Cc: Ian Campbell <icampbell@arcom.com> Cc: Tony Luck <tony.luck@intel.com> [ia64] Cc: Fenghua Yu <fenghua.yu@intel.com> [ia64] Cc: Hirokazu Takata <takata@linux-m32r.org> [m32r] Cc: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Cc: Kyle McMartin <kyle@mcmartin.ca> [parisc] Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> [powerpc] Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390] Cc: Thomas Gleixner <tglx@linutronix.de> [x86] Cc: Ingo Molnar <mingo@redhat.com> [x86] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Merge branch 'x86-platform-for-linus' of ↵Linus Torvalds2009-09-1856-907/+756
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (38 commits) x86: Move get/set_wallclock to x86_platform_ops x86: platform: Fix section annotations x86: apic namespace cleanup x86: Distangle ioapic and i8259 x86: Add Moorestown early detection x86: Add hardware_subarch ID for Moorestown x86: Add early platform detection x86: Move tsc_init to late_time_init x86: Move tsc_calibration to x86_init_ops x86: Replace the now identical time_32/64.c by time.c x86: time_32/64.c unify profile_pc x86: Move calibrate_cpu to tsc.c x86: Make timer setup and global variables the same in time_32/64.c x86: Remove mca bus ifdef from timer interrupt x86: Simplify timer_ack magic in time_32.c x86: Prepare unification of time_32/64.c x86: Remove do_timer hook x86: Add timer_init to x86_init_ops x86: Move percpu clockevents setup to x86_init_ops x86: Move xen_post_allocator_init into xen_pagetable_setup_done ... Fix up conflicts in arch/x86/include/asm/io_apic.h
| * x86: Move get/set_wallclock to x86_platform_opsFeng Tang2009-09-1612-83/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | get/set_wallclock() have already a set of platform dependent implementations (default, EFI, paravirt). MRST will add another variant. Moving them to platform ops simplifies the existing code and minimizes the effort to integrate new variants. Signed-off-by: Feng Tang <feng.tang@intel.com> LKML-Reference: <new-submission> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: platform: Fix section annotationsThomas Gleixner2009-09-163-4/+4
| | | | | | | | | | | | | | | | | | init_IRQ() and x86_late_time_init() are missing __init annotations. The x86 platform ops variables are annotated, but the annotation needs to be put between the variable name and the "=" of the initializer. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: apic namespace cleanupThomas Gleixner2009-08-315-12/+12
| | | | | | | | | | | | | | boot_cpu_physical_apicid is a global variable and used as function argument as well. Rename the function arguments to avoid confusion. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Distangle ioapic and i8259Thomas Gleixner2009-08-312-12/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The proposed Moorestown support patches use an extra feature flag mechanism to make the ioapic work w/o an i8259. There is a much simpler solution. Most i8259 specific functions are already called dependend on the irq number less than NR_IRQS_LEGACY. Replacing that constant by a read_mostly variable which can be set to 0 by the platform setup code allows us to achieve the same without any special feature flags. That trivial change allows us to proceed with MRST w/o doing a full blown overhaul of the ioapic code which would delay MRST unduly. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Add Moorestown early detectionThomas Gleixner2009-08-315-0/+47
| | | | | | | | | | | | | | | | | | | | | | Moorestown MID devices need to be detected early in the boot process to setup and do not call x86_default_early_setup as there is no EBDA region to reserve. [ Copied the minimal code from Jacobs latest MRST series ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jacob Pan <jacob.jun.pan@intel.com>
| * x86: Add hardware_subarch ID for MoorestownPan, Jacob jun2009-08-313-0/+12
| | | | | | | | | | | | | | | | | | | | x86 bootprotocol 2.07 has introduced hardware_subarch ID in the boot parameters provided by FW. We use it to identify Moorestown platforms. [ tglx: Cleanup and paravirt fix ] Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Add early platform detectionThomas Gleixner2009-08-314-9/+20
| | | | | | | | | | | | | | | | | | | | | | | | Platforms like Moorestown require early setup and want to avoid the call to reserve_ebda_region. The x86_init override is too late when the MRST detection happens in setup_arch. Move the default i386 x86_init overrides and the call to reserve_ebda_region into a separate function which is called as the default of a switch case depending on the hardware_subarch id in boot params. This allows us to add a case for MRST and let MRST have its own early setup function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move tsc_init to late_time_initThomas Gleixner2009-08-311-1/+1
| | | | | | | | | | | | | | | | | | | | We do not need the TSC before late_time_init. Move the tsc_init to the late time init code so we can also utilize HPET for calibration (which we claimed to do but never did except in some older kernel version). This also helps Moorestown to calibrate the TSC with the AHBT timer which needs to be initialized in late_time_init like HPET. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move tsc_calibration to x86_init_opsThomas Gleixner2009-08-3117-41/+48
| | | | | | | | | | | | | | | | | | | | TSC calibration is modified by the vmware hypervisor and paravirt by separate means. Moorestown wants to add its own calibration routine as well. So make calibrate_tsc a proper x86_init_ops function and override it by paravirt or by the early setup of the vmware hypervisor. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Replace the now identical time_32/64.c by time.cThomas Gleixner2009-08-313-122/+1
| | | | | | | | | | | | Remove the redundant copy. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: time_32/64.c unify profile_pcThomas Gleixner2009-08-312-10/+11
| | | | | | | | | | | | | | The code is identical except for the formatting and a useless #ifdef. Make it the same. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move calibrate_cpu to tsc.cThomas Gleixner2009-08-314-56/+55
| | | | | | | | | | | | | | Move the code where it's only user is. Also we need to look whether this hardwired hackery might interfere with perfcounters. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Make timer setup and global variables the same in time_32/64.cThomas Gleixner2009-08-312-11/+35
| | | | | | | | | | | | | | | | The timer and timer irq setup code is identical in 32 and 64 bit. Make it the same formatting as well. Also add the global variables under the necessary ifdefs to both files. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Remove mca bus ifdef from timer interruptThomas Gleixner2009-08-312-21/+6
| | | | | | | | | | | | | | MCA_bus is constant 0 when CONFIG_MCA=n. So the compiler removes that code w/o needing an extra #ifdef Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Simplify timer_ack magic in time_32.cThomas Gleixner2009-08-313-4/+21
| | | | | | | | | | | | | | | | | | Let the compiler optimize the timer_ack magic away in the 32bit timer interrupt and put the same code into time_64.c. It's optimized out for CONFIG_X86_IO_APIC on 32bit and for 64bit because timer_ack is const 0 in both cases. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Prepare unification of time_32/64.cThomas Gleixner2009-08-312-39/+18
| | | | | | | | | | | | Unify the top comment and the includes. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Remove do_timer hookThomas Gleixner2009-08-312-19/+4
| | | | | | | | | | | | | | This is a left over of the old x86 sub arch support. Remove it and open code it like we do in time_64.c Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Add timer_init to x86_init_opsThomas Gleixner2009-08-3117-113/+53
| | | | | | | | | | | | | | | | | | | | | | | | The timer init code is convoluted with several quirks and the paravirt timer chooser. Figuring out which code path is actually taken is not for the faint hearted. Move the numaq TSC quirk to tsc_pre_init x86_init_ops function and replace the paravirt time chooser and the remaining x86 quirk with a simple x86_init_ops function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move percpu clockevents setup to x86_init_opsThomas Gleixner2009-08-3111-28/+42
| | | | | | | | | | | | | | | | | | | | paravirt overrides the setup of the default apic timers as per cpu timers. Moorestown needs to override that as well. Move it to x86_init_ops setup and create a separate x86_cpuinit struct which holds the function for the secondary evtl. hotplugabble CPUs. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move xen_post_allocator_init into xen_pagetable_setup_doneThomas Gleixner2009-08-317-19/+4
| | | | | | | | | | | | | | | | | | We really do not need two paravirt/x86_init_ops functions which are called in two consecutive source lines. Move the only user of post_allocator_init into the already existing pagetable_setup_done function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move paravirt pagetable_setup to x86_init_opsThomas Gleixner2009-08-3111-46/+32
| | | | | | | | | | | | Replace more paravirt hackery by proper x86_init_ops. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move paravirt banner printout to x86_init_opsThomas Gleixner2009-08-317-14/+12
| | | | | | | | | | | | | | | | Replace another obscure paravirt magic and move it to x86_init_ops. Such a hook is also useful for embedded and special hardware. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Replace ARCH_SETUP by a proper x86_init_opsThomas Gleixner2009-08-317-9/+15
| | | | | | | | | | | | | | ARCH_SETUP is a horrible leftover from the old arch/i386 mach support code. It still has a lonely user in xen. Move it to x86_init_ops. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move traps_init to x86_init_opsThomas Gleixner2009-08-317-27/+8
| | | | | | | | | | | | Replace the quirks by a simple x86_init_ops function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move irq_init to x86_init_opsThomas Gleixner2009-08-3112-42/+11
| | | | | | | | | | | | | | | | | | irq_init is overridden by x86_quirks and by paravirts. Unify the whole mess and make it an unconditional x86_init_ops function which defaults to the standard function and can be overridden by the early platform code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move pre_intr_init to x86_init_opsThomas Gleixner2009-08-317-31/+22
| | | | | | | | | | | | | | | | | | Replace the quirk machinery by a x86_init_ops function which defaults to the standard implementation. This is also a preparatory patch for Moorestown support which needs to replace the default init_ISA_irqs as well. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move get/find_smp_config to x86_init_opsThomas Gleixner2009-08-318-54/+42
| | | | | | | | | | | | | | Replace the quirk machinery by a x86_init_ops function which defaults to the standard implementation. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move oem_bus_info to x86_init_opsThomas Gleixner2009-08-276-10/+18
| | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move mpc_oem_pci_bus to x86_init_opsThomas Gleixner2009-08-274-4/+6
| | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move smp_read_mpc_oem to x86_init_ops.Thomas Gleixner2009-08-276-10/+13
| | | | | | | | | | | | Move smp_read_mpc_oem from quirks to x86_init. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move mpc_apic_id to x86_init_opsThomas Gleixner2009-08-276-7/+15
| | | | | | | | | | | | | | The mpc_apic_id setup is handled by a x86_quirk. Make it a x86_init_ops function with a default implementation. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move ioapic_ids_setup to x86_init_opsThomas Gleixner2009-08-277-16/+13
| | | | | | | | | | | | | | | | 32bit and also the numaq code have special requirements on the ioapic_id setup. Convert it to a x86_init_ops function and get rid of the quirks and #ifdefs Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Sanitize smp_record and move it to x86_init_opsThomas Gleixner2009-08-275-9/+34
| | | | | | | | | | | | | | | | | | | | | | The x86 quirkification introduced an extra ugly hackery with a variable pointer in the mpparse code. If the pointer is initialized then it is dereferenced and the variable set to 0 or incremented. Create a x86_init_ops function and let the affected numaq code hold the function. Default init is a setup noop. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Move memory_setup to x86_init_opsThomas Gleixner2009-08-2711-32/+11
| | | | | | | | | | | | | | | | | | memory_setup is overridden by x86_quirks and by paravirts with weak functions and quirks. Unify the whole mess and make it an unconditional x86_init_ops function which defaults to the standard function and can be overridden by the early platform code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Add reserve_ebda_region to x86_init_opsThomas Gleixner2009-08-274-4/+7
| | | | | | | | | | | | | | | | reserve_ebda_region needs to be called befor start_kernel. Moorestown needs to override it. Make it a x86_init_ops function and initialize it with the default reserve_ebda_region. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * x86: Add request_standard_resources to x86_initThomas Gleixner2009-08-275-13/+25
| | | | | | | | | | | | | | | | | | | | | | | | The 32bit and the 64bit code are slighty different in the reservation of standard resources. Also the upcoming Moorestown support needs its own version of that. Add it to x86_init_ops and initialize it with the 64bit default. 32bit overrides it in early boot. Now moorestown can add it's own override w/o sprinkling the code with more #ifdefs Signed-off-by: Thomas Gleixner <tglx@linutronix.de>