- 16 4月, 2008 2 次提交
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由 Jerone Young 提交于
This changes the cpu_idle loop for 44x platforms to utilize the Wait Enable feature of the CPU. This helps virtulization solutions know when the guest Linux kernel is in an idle state. A command line option called "idle" is also added to allow people to change the idle loop back to the original variation. This is done by setting "idle=spin" on the kernel command line. Signed-off-by: NJerone Young <jyoung5@us.ibm.com> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Josh Boyer 提交于
Add a multi-board PowerPC 40x defconfig file Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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- 15 4月, 2008 12 次提交
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由 Josh Boyer 提交于
Board specific defconfigs are useful, however with the ability to do multi-board defconfigs they aren't needed in the top level configs directory. Move the 4xx board specific defconfigs to individual directories under arch/powerpc/configs. Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Stephen Rothwell 提交于
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
Now that we have the alpaca, the reg_save_ptr is no longer needed in the paca. Eradicate all global uses of it and make it static in the iSeries lpardata.c Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
The iSeries HV only needs the first two fields of the paca statically initialised, so create an alternate paca that contains only those and switch to our real paca immediately after boot. This is in order to make the 1024 cpu patches easier since they will no longer have to statically initialise the pacas for iSeries. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Dale Farnsworth 提交于
The prpmc2800 platform requires a zImage formatted file with an embedded dtb file. Rename the requested boot image file to dtbImage.prpmc2800. Signed-off-by: NDale Farnsworth <dale@farnsworth.org> Acked-by: NMark A. Greer <mgreer@mvista.com> Acked-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Dale Farnsworth 提交于
The mv643xx_eth driver is being modified to support multiple instances of the ethernet silicon block on the same platform. Each block contains a single register bank containing the registers for up to three ports interleaved within that bank. This patch updates the PowerPC OF to platform_device glue code to support multiple silicon blocks, each with up to three ethernet ports. The main difference is that we now allow multiple mv64x60_shared platform_devices to be registered and we provide each port platform_device with a pointer to its associated shared platform_device. The pointer will not be used until the mv643xx_eth driver changes are committed. Signed-off-by: NDale Farnsworth <dale@farnsworth.org> Acked-by: NMark Greer <mgreer@mvista.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Mark A. Greer 提交于
Remove several unused (or software config only) properties. Rename marvel node to "system-controller". Also, rename the "block-index" property to "cell-index" to conform to current practice. Signed-off-by: NMark A. Greer <mgreer@mvista.com> Signed-off-by: NDale Farnsworth <dale@farnsworth.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Dale Farnsworth 提交于
Replace several device node absolute path lookups in the mv64x60 bootwrapper code with lookups by compatible or device_type properties. Signed-off-by: NDale Farnsworth <dale@farnsworth.org> Acked-by: NMark A. Greer <mgreer@mvista.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Mark A. Greer 提交于
Compatible names should refer to a specific version of the hardware, without wildcards. Change each instance of mv64x60 to mv64360, which is the oldest version we currently support. Signed-off-by: NMark A. Greer <mgreer@mvista.com> Signed-off-by: NDale Farnsworth <dale@farnsworth.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Dale Farnsworth 提交于
After the conversion to dts v1 format, seeing the frequencies in decimal made it obvious that some of them had been incorrectly truncated. This fixes them. Note that the PCI frequency comes from a different source and is documented as 66MHz, so it was left at 66000000. Signed-off-by: NDale Farnsworth <dale@farnsworth.org> Acked-by: NMark A. Greer <mgreer@mvista.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Mark A. Greer 提交于
Update the prpmc2800 DTS file to version 1 and add labels. I verified that there was no change in the resulting dtb file. Signed-off-by: NMark A. Greer <mgreer@mvista.com> Signed-off-by: NDale Farnsworth <dale@farnsworth.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
The allyesconfig (among others) build was giving this: In file included from include/linux/gfp.h:4, from include/linux/slab.h:14, from include/linux/percpu.h:5, from include2/asm/time.h:18, from include2/asm/cputime.h:26, from include/linux/sched.h:67, from arch/powerpc/kernel/asm-offsets.c:17: include/linux/mmzone.h:791:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE Kconfig options are order depenendent, so move the setting of FORCE_MAX_ZONEORDER to after the setting of PPC_64K_PAGES. Also add an explicit !PPC_64K_PAGES. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 14 4月, 2008 1 次提交
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由 Paul Mackerras 提交于
If an SLB miss interrupt happens while the RI bit of MSR is zero, we can't just return, because RI being zero indicates that SRR0/SRR1 potentially had live values in them, and the process of taking an interrupt overwrites them. This should never happen, but if it does, we try to print a nice oops message. That doesn't work, however, because the code at unrecov_slb assumes that the MMU has been turned on, but we call it with the MMU off (and have done so since the SLB miss handler was rewritten to run without turning the MMU on) -- except on iSeries, where everything runs with the MMU on. This fixes it by adding the necessary code to turn the MMU on if necessary. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 11 4月, 2008 4 次提交
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由 Roland McGrath 提交于
The prevent_tail_call() macro works around the problem of the compiler clobbering argument words on the stack, which for asmlinkage functions is the caller's (user's) struct pt_regs. The tail/sibling-call optimization is not the only way that the compiler can decide to use stack argument words as scratch space, which we have to prevent. Other optimizations can do it too. Until we have new compiler support to make "asmlinkage" binding on the compiler's own use of the stack argument frame, we have work around all the manifestations of this issue that crop up. More cases seem to be prevented by also keeping the incoming argument variables live at the end of the function. This makes their original stack slots attractive places to leave those variables, so the compiler tends not clobber them for something else. It's still no guarantee, but it handles some observed cases that prevent_tail_call() did not. Signed-off-by: NRoland McGrath <roland@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Venki Pallipadi 提交于
This patch also resolves hangs on boot: http://lkml.org/lkml/2008/2/23/263 http://bugzilla.kernel.org/show_bug.cgi?id=10093 The bug was causing once-in-few-reboots 10-15 sec wait during boot on certain laptops. Earlier commit 40d6a146 added smp_call_function in cpu_idle_wait() to kick cpus that are in tickless idle. Looking at cpu_idle_wait code at that time, code seemed to be over-engineered for a case which is rarely used (while changing idle handler). Below is a simplified version of cpu_idle_wait, which just makes a dummy smp_call_function to all cpus, to make them come out of old idle handler and start using the new idle handler. It eliminates code in the idle loop to handle cpu_idle_wait. Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Howells 提交于
Make NOMMU-mode work with base addresses other than 0xC0000000 by: (1) Giving the code that sets up the protection registers the right address in __sdram_base. Rather than being hard coded to 0xC0000000, the value of __page_offset is obtained from the linker script. (2) Eliminate the check in __switch_to() that verifies the current thread info is in the 0xCxxxxxxx region. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Howells 提交于
Use traps 120-126 to emulate atomic cmpxchg32, xchg32, and XOR-, OR-, AND-, SUB- and ADD-to-memory operations for userspace. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 10 4月, 2008 2 次提交
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由 David S. Miller 提交于
1) ptrace should pass 'current' to task_user_regset_view() 2) When fetching general registers using a 64-bit view, and the target is 32-bit, we have to convert. 3) Skip the whole register window get/set code block if the user isn't asking to access anything in there. Otherwise we have problems if the user doesn't have an address space setup. Fetching ptrace register is still valid at such a time, and ptrace does not try to access the register window area of the regset. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Steven Rostedt 提交于
gcc expects all toplevel assembly to return to the original section type. The code in alteranative.c does not do this. This caused some strange bugs in sched-devel where code would end up in the .rodata section and when the kernel sets the NX bit on all .rodata, the kernel would crash when executing this code. This patch adds a .previous marker to return the code back to the original section. Credit goes to Andrew Pinski for telling me it wasn't a gcc bug but a bug in the toplevel asm code in the kernel. ;-) Signed-off-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 08 4月, 2008 3 次提交
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由 Ralf Baechle 提交于
flush_cache_vmap / flush_cache_vunmap were calling flush_cache_all which - having been deprecated - turned into a nop ... Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Karsten Wiese 提交于
In time_cpufreq_notifier() the cpu id to act upon is held in freq->cpu. Use it instead of smp_processor_id() in the call to set_cyc2ns_scale(). This makes the preempt_*able() unnecessary and lets set_cyc2ns_scale() update the intended cpu's cyc2ns. Related mail/thread: http://lkml.org/lkml/2007/12/7/130Signed-off-by: NKarsten Wiese <fzu@wemgehoertderstaat.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
revert: | commit 47001d60 | Author: Thomas Gleixner <tglx@linutronix.de> | Date: Tue Apr 1 19:45:18 2008 +0200 | | x86: tsc prevent time going backwards it has been identified to cause suspend regression - and the commit fixes a longstanding bug that existed before 2.6.25 was opened - so it can wait some more until the effects are better understood. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 07 4月, 2008 8 次提交
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由 Stephen Rothwell 提交于
This will remove some build warnings and doesn't stop us building any drivers that we were building previously with these configs. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
This eliminates a warning in builds that don't define CONFIG_MEMORY_HOTPLUG. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Nathan Lynch 提交于
A couple of places are duplicating the function of of_device_is_available; convert them to use it. Signed-off-by: NNathan Lynch <ntl@pobox.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Timur Tabi 提交于
This enables the FORCE_MAX_ZONEORDER Kconfig option for all PowerPC systems. Previously, it was enabled only for 64-bit systems. We also make the option selectable from the menu, so that the user can specify different values. This is useful for 32-bit systems that need to allocate more than 4MB of physically contiguous memory. Signed-off-by: NTimur Tabi <timur@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Robert P. J. Day 提交于
__SPIN_LOCK_UNLOCKED is newer and is not deprecated. Signed-off-by: NRobert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Steven Rostedt 提交于
We have an assembly version of strncmp for the bootwrapper, but not for the kernel, so we end up using the C version in the kernel. This takes the strncmp code from the bootup and copies it to the kernel proper, adding two instructions so it copes correctly with len==0. Signed-off-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Roel Kluin 提交于
Replace logical "&&" by bit "&" for ISA_SPACE_MASK. Signed-off-by: NRoel Kluin <12o3l@tiscali.nl> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Rusty Russell 提交于
We handle a broken tsc these days, so no need to panic. We clear the TSC bit when tsc_init decides it's unreliable (eg. under lguest w/ bad host TSC), leading to bogus panic. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Acked-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 06 4月, 2008 1 次提交
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由 Josh Boyer 提交于
Include the newly added Canyonlands and Yosemite ports in the mutli-board 440 defconfig. Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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- 05 4月, 2008 7 次提交
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由 Valentine Barshak 提交于
With a multiplatform kernel, once built we always have warp_setup_nand_flash() called and NDFC probed, no matter what machine we actually run on. This potentially can cause problems (such as kernel crash), since NDFC is probed at a warp-predefined address. Using machine_device_initcall() NAND devices are registered if we run on a warp only. Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Stefan Roese 提交于
This patch changes the "max-frame-size" property to 9000 for all gbit enabled 4xx boards. All those ports generally support jumbo frames, so let's give the user a chance to enable it. Signed-off-by: NStefan Roese <sr@denx.de> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Stefan Roese 提交于
This patch fixes some problems in the Canyonlands 460EX and Glacier 460GT dts files: - Add "mdio-device = <&EMAC0>" to all all EMAC's except for EMAC0 itself (the 460EX/GT only can access the PHY via the EMAC0 instance) - Add TAH support to Canyonlands dts Signed-off-by: NStefan Roese <sr@denx.de> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Sergei Shtylyov 提交于
Building UP kernel with KGDB enabled produces the following errors and warning (fatal due to -Werror in arch/mips/kernel/Makefile): In file included from arch/mips/kernel/gdb-stub.c:142: include/asm/smp.h:25:1: "raw_smp_processor_id" redefined In file included from include/linux/sched.h:69, from arch/mips/kernel/gdb-stub.c:126: include/linux/smp.h:88:1: this is the location of the previous definition In file included from arch/mips/kernel/gdb-stub.c:142: include/asm/smp.h:62: error: redefinition of 'smp_send_reschedule' include/linux/smp.h:102: error: previous definition of 'smp_send_reschedule' was here include/asm/smp.h: In function `smp_send_reschedule': include/asm/smp.h:65: error: dereferencing pointer to incomplete type arch/mips/kernel/gdb-stub.c: At top level: arch/mips/kernel/gdb-stub.c:660: warning: 'kgdb_wait' defined but not used Fix the errors by not directly including <asm/smp.h> (which is already included by <linux/smp.h>) and the warning by enclosing kgdb_wait() in #ifdef CONFIG_SMP. Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Geert Uytterhoeven 提交于
Long overdue update of the m68k defconfigs Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Adrian Bunk 提交于
The default defconfig should be one from arch/m68k/configs/ arch/m68k/defconfig was not exactly identical to amiga_defconfig but also considering how long they have been without any update that doesn't seem to have been on purpose. Signed-off-by: NAdrian Bunk <adrian.bunk@movial.fi> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Thomas Gleixner 提交于
The commits: commit 37a47db8 Author: Balaji Rao <balajirrao@gmail.com> Date: Wed Jan 30 13:30:03 2008 +0100 x86: assign IRQs to HPET timers, fix and commit e3f37a54 Author: Balaji Rao <balajirrao@gmail.com> Date: Wed Jan 30 13:30:03 2008 +0100 x86: assign IRQs to HPET timers have been identified to cause a regression on some platforms due to the assignement of legacy IRQs which makes the legacy devices connected to those IRQs disfunctional. Revert them. This fixes http://bugzilla.kernel.org/show_bug.cgi?id=10382Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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