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* Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2008-07-2214-34/+45
|\ | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix crash due to missing debugctlmsr on AMD K6-3 x86: add PTE_FLAGS_MASK x86: rename PTE_MASK to PTE_PFN_MASK x86: fix pte_flags() to only return flags, fix lguest (updated) x86: use setup_clear_cpu_cap with disable_apic, fix x86: move the last Dprintk instance to pr_debug()
| * x86: fix crash due to missing debugctlmsr on AMD K6-3Jan Kratochvil2008-07-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | currently if you use PTRACE_SINGLEBLOCK on AMD K6-3 (i586) it will crash. Kernel now wrongly assumes existing DEBUGCTLMSR MSR register there. Removed the assumption also for some other non-K6 CPUs but I am not sure there (but it can only bring small inefficiency there if my assumption is wrong). Based on info from Roland McGrath, Chuck Ebbert and Mikulas Patocka. More info at: https://bugzilla.redhat.com/show_bug.cgi?id=456175 Signed-off-by: Jan Kratochvil <jan.kratochvil@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: add PTE_FLAGS_MASKJeremy Fitzhardinge2008-07-225-8/+11
| | | | | | | | | | | | | | | | PTE_PFN_MASK was getting lonely, so I made it a friend. Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: rename PTE_MASK to PTE_PFN_MASKJeremy Fitzhardinge2008-07-2210-28/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rusty, in his peevish way, complained that macros defining constants should have a name which somewhat accurately reflects the actual purpose of the constant. Aside from the fact that PTE_MASK gives no clue as to what's actually being masked, and is misleadingly similar to the functionally entirely different PMD_MASK, PUD_MASK and PGD_MASK, I don't really see what the problem is. But if this patch silences the incessent noise, then it will have achieved its goal (TODO: write test-case). Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: fix pte_flags() to only return flags, fix lguest (updated)Rusty Russell2008-07-223-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (Jeremy said: rusty: use PTE_MASK rusty: use PTE_MASK rusty: use PTE_MASK When I asked: jsgf: does that include the NX flag? He responded eloquently: rusty: use PTE_MASK rusty: use PTE_MASK yes, it's the official constant of masking flags out of ptes ) Change a15af1c9ea2750a9ff01e51615c45950bad8221b 'x86/paravirt: add pte_flags to just get pte flags' removed lguest's private pte_flags() in favor of a generic one. Unfortunately, the generic one doesn't filter out the non-flags bits: this results in lguest creating corrupt shadow page tables and blowing up host memory. Since noone is supposed to use the pfn part of pte_flags(), it seems safest to always do the filtering. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-and-morning-tea-spilled-by: Ingo Molnar <mingo@elte.hu>
| * x86: use setup_clear_cpu_cap with disable_apic, fixYinghai Lu2008-07-221-1/+1
| | | | | | | | | | | | | | | | beauty fix: /proc/cpuinfo will still show apic feature even if we booted up with it disabled. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: move the last Dprintk instance to pr_debug()Thomas Gleixner2008-07-211-4/+4
| | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds2008-07-2216-202/+259
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: remove CONFIG_KMOD from core kernel code remove CONFIG_KMOD from lib remove CONFIG_KMOD from sparc64 rework try_then_request_module to do less in non-modular kernels remove mention of CONFIG_KMOD from documentation make CONFIG_KMOD invisible modules: Take a shortcut for checking if an address is in a module module: turn longs into ints for module sizes Shrink struct module: CONFIG_UNUSED_SYMBOLS ifdefs module: reorder struct module to save space on 64 bit builds module: generic each_symbol iterator function module: don't use stop_machine for waiting rmmod
| * | remove CONFIG_KMOD from core kernel codeJohannes Berg2008-07-224-5/+5
| | | | | | | | | | | | | | | | | | | | | Always compile request_module when the kernel allows modules. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | remove CONFIG_KMOD from libJohannes Berg2008-07-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | textsearch algorithms can be loaded, make the code depend on CONFIG_MODULES instead of CONFIG_KMOD. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | remove CONFIG_KMOD from sparc64Johannes Berg2008-07-222-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | One place is just a comment, the other a conditional, unused inclusion of linux/kmod.h. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | rework try_then_request_module to do less in non-modular kernelsJohannes Berg2008-07-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | This reworks try_then_request_module to only invoke the "lookup" function "x" once when the kernel is not modular. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | remove mention of CONFIG_KMOD from documentationJohannes Berg2008-07-226-23/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also includes a few Kconfig files (xtensa, blackfin) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: linux-doc@vger.kernel.org Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Randy Dunlap <rdunlap@xenotime.net>
| * | make CONFIG_KMOD invisibleJohannes Berg2008-07-221-8/+3
| | | | | | | | | | | | | | | | | | | | | | | | ... as preparation for removing it completely, make it an invisible bool defaulting to yes. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | modules: Take a shortcut for checking if an address is in a moduleRusty Russell2008-07-221-2/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch keeps track of the boundaries of module allocation, in order to speed up module_text_address(). Inspired by Arjan's version, which required arch-specific defines: Various pieces of the kernel (lockdep, latencytop, etc) tend to store backtraces, sometimes at a relatively high frequency. In itself this isn't a big performance deal (after all you're using diagnostics features), but there have been some complaints from people who have over 100 modules loaded that this is a tad too slow. This is due to the new backtracer code which looks at every slot on the stack to see if it's a kernel/module text address, so that's 1024 slots. 1024 times 100 modules... that's a lot of list walking. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | module: turn longs into ints for module sizesDenys Vlasenko2008-07-222-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This shrinks module.o and each *.ko file. And finally, structure members which hold length of module code (four such members there) and count of symbols are converted from longs to ints. We cannot possibly have a module where 32 bits won't be enough to hold such counts. For one, module loading checks module size for sanity before loading, so such insanely big module will fail that test first. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | Shrink struct module: CONFIG_UNUSED_SYMBOLS ifdefsDenys Vlasenko2008-07-223-17/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | module.c and module.h conatains code for finding exported symbols which are declared with EXPORT_UNUSED_SYMBOL, and this code is compiled in even if CONFIG_UNUSED_SYMBOLS is not set and thus there can be no EXPORT_UNUSED_SYMBOLs in modules anyway (because EXPORT_UNUSED_SYMBOL(x) are compiled out to nothing then). This patch adds required #ifdefs. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | module: reorder struct module to save space on 64 bit buildsRichard Kennedy2008-07-221-20/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | reorder struct module to save space on 64 bit builds. saves 1 cacheline_size (128 on default x86_64 & 64 on AMD Opteron/athlon) when CONFIG_MODULE_UNLOAD=y. Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | module: generic each_symbol iterator functionRusty Russell2008-07-221-110/+134
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce an each_symbol() iterator to avoid duplicating the knowledge about the 5 different sections containing symbols. Currently only used by find_symbol(), but will be used by symbol_put_addr() too. (Includes NULL ptr deref fix by Jiri Kosina <jkosina@suse.cz>) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Jiri Kosina <jkosina@suse.cz>
| * | module: don't use stop_machine for waiting rmmodRusty Russell2008-07-221-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rmmod has a little-used "-w" option, meaning that instead of failing if the module is in use, it should block until the module becomes unused. In this case, we don't need to use stop_machine: Max Krasnyansky indicated that would be useful for SystemTap which loads/unloads new modules frequently. Cc: Max Krasnyansky <maxk@qualcomm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* | | Merge branch 'merge' of ↵Linus Torvalds2008-07-22111-1612/+6416
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (49 commits) powerpc: Fix build bug with binutils < 2.18 and GCC < 4.2 powerpc/eeh: Don't panic when EEH_MAX_FAILS is exceeded fbdev: Teaches offb about palette on radeon r5xx/r6xx powerpc/cell/edac: Log a syndrome code in case of correctable error powerpc/cell: Add DMA_ATTR_WEAK_ORDERING dma attribute and use in Cell IOMMU code powerpc: Indicate which oprofile counters to use while in compat mode powerpc/boot: Change spaces to tabs powerpc: Remove duplicate 6xx option in Kconfig powerpc: Use PPC_LONG and PPC_LONG_ALIGN in lib/string.S powerpc: Use PPC_LONG_ALIGN in uaccess.h powerpc: Add a #define for aligning to a long-sized boundary powerpc: Fix OF parsing of 64 bits PCI addresses powerpc: Use WARN_ON(1) instead of __WARN() powerpc: Fix support for latencytop powerpc/ps3: Update ps3_defconfig powerpc/ps3: Add a sub-match id to ps3_system_bus powerpc: Add a 6xx defconfig powerpc/dma: Use the struct dma_attrs in iommu code powerpc/cell: Add support for power button of future IBM cell blades powerpc/cell: Cleanup sysreset_hack for IBM cell blades ...
| * | | Merge commit 'origin/master'Benjamin Herrenschmidt2008-07-222632-125498/+205619
| |\| | | | | | | | | | | | | | | | | | Manually fixed up: drivers/net/fs_enet/fs_enet-main.c
| * | | powerpc: Fix build bug with binutils < 2.18 and GCC < 4.2Segher Boessenkool2008-07-221-3/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | binutils < 2.18 has a bug that makes it misbehave when taking an ELF file with all segments at load address 0 as input. This happens when running "strip" on vmlinux, because of the AT() magic in this linker script. People using GCC >= 4.2 won't run into this problem, because the "build-id" support will put some data into the "notes" segment (at a non-zero load address). To work around this, we force some data into both the "dummy" segment and the kernel segment, so the dummy segment will get a non-zero load address. It's not enough to always create the "notes" segment, since if nothing gets assigned to it, its load address will be zero. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Tested-By: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/eeh: Don't panic when EEH_MAX_FAILS is exceededMike Mason2008-07-221-14/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes the EEH_MAX_FAILS action from panic to printing an error message. Panicking under under this condition is too harsh. Although performance will be affected and the device may not recover, the system is still running, which at the very least should allow for a more graceful shutdown. The patch also removes the msleep() within a spinlock, which can lead to a deadlock and is not recommended. Signed-off-by: Mike Mason <mmlnx@us.ibm.com> Acked-by: Linas Vepstas <linasvepstas@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | fbdev: Teaches offb about palette on radeon r5xx/r6xxBenjamin Herrenschmidt2008-07-221-50/+142
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The offb driver already has a collection of hacks to be able to set the palette on various chips. This adds support for r5xx/r6xx radeons. This is needed as offb is the only console solution on these currently and the firmware in some cases sets a really bad color palette. This fixes using some Radeon X16xx on the Powerstation for example. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/cell/edac: Log a syndrome code in case of correctable errorMaxim Shchetynin2008-07-221-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If correctable error occurs the syndrome code was logged as 0. This patch lets EDAC to log a correct syndrome code to make problem investigation easier. Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Doug Thompson <dougthompson@xmission.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/cell: Add DMA_ATTR_WEAK_ORDERING dma attribute and use in Cell IOMMU ↵Mark Nelson2008-07-223-5/+118
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | code Introduce a new dma attriblue DMA_ATTR_WEAK_ORDERING to use weak ordering on DMA mappings in the Cell processor. Add the code to the Cell's IOMMU implementation to use this code. Dynamic mappings can be weakly or strongly ordered on an individual basis but the fixed mapping has to be either completely strong or completely weak. This is currently decided by a kernel boot option (pass iommu_fixed=weak for a weakly ordered fixed linear mapping, strongly ordered is the default). Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Indicate which oprofile counters to use while in compat modeTorez Smith2008-07-221-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While running on a system with new hardware and a kernel where the cpu_specs[] table does not recognize the new hardware, the identify_cpu() routine will select the default case as it searches through cpu_specs[] in an attempt to match the real PVR. Once the default case is selected, non of the oprofile counters and/or fields have been set up or defined. When identify_cpu() is called once more with the logical PVR, some of the cpu specific fields are replaced with the exception of the oprofile related ones. However, in the case where we have actually taken the default case while searching for the real PVR, we need to tell oprofile that we are now running in compatibility mode so it can pick up the correct counters. We do this by setting the oprofile_cpu_type field to be that taken from the cpu_specs[] for the cpu we are now emulating. This change will detect that we are now altering the real PVR and determine if we also need to update the oprofile_cpu_type field. Signed-off-by: Torez Smith <lnxtorez@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/boot: Change spaces to tabsAdrian Bunk2008-07-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For C code spaces versus tabs is just a religious issue, but for Makefiles it actually matters. This patch fixes he following errors: /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/powerpc/boot/Makefile:166: *** missing separator. Stop. /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/powerpc/boot/Makefile:171: *** missing separator. Stop. Since this was inside an ifdef DTC_GENPARSER it was not a problem unless someone wanted to regenerate the shipped generated files. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Remove duplicate 6xx option in KconfigAdrian Bunk2008-07-221-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The real option is above in the same Kconfig file. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Use PPC_LONG and PPC_LONG_ALIGN in lib/string.SMichael Ellerman2008-07-221-12/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace ifdef clutter with the PPC_LONG and PPC_LONG_ALIGN macros for readability. No change to the generated code. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Use PPC_LONG_ALIGN in uaccess.hMichael Ellerman2008-07-221-12/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the new PPC_LONG_ALIGN macro instead of passing an argument to the asm for consistency. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Add a #define for aligning to a long-sized boundaryMichael Ellerman2008-07-221-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a #define for aligning to a long-sized boundary. It would be nice to use sizeof(long) for this, but that requires generating the value with asm-offsets.c, and asm-offsets.c includes asm-compat.h and we descend into some sort of recursive include hell. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Fix OF parsing of 64 bits PCI addressesBenjamin Herrenschmidt2008-07-222-20/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OF parsing code for PCI addresses isn't always treating properly the address space indication 0b11 (ie. 0x3) as meaning 64 bits memory space. This means that it fails to parse addresses for PCI BARs that have this encoding set by the firmware, which happens on some SLOF versions and breaks offb palette handling on Powerstation. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
| * | | powerpc: Use WARN_ON(1) instead of __WARN()Michael Ellerman2008-07-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | __WARN() is not defined for all configs, use WARN_ON(1) instead. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Fix support for latencytopArnd Bergmann2008-07-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to pass the kernel stack pointer instead of the user space stack pointer in save_stack_trace_tsk(). Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/ps3: Update ps3_defconfigGeoff Levand2008-07-221-74/+122
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Update ps3_defconfig. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/ps3: Add a sub-match id to ps3_system_busMasakazu Mokuno2008-07-224-7/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add sub match id for ps3 system bus so that two different system bus devices can be connected to a shared device. Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Add a 6xx defconfigKumar Gala2008-07-221-0/+3304
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a defconfig from Dave Jones and should be similar (if not identical) to the fedora ppc32 defconfig. The intent is to cover all cache coherent 6xx based chips and platforms as reasonable. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/dma: Use the struct dma_attrs in iommu codeMark Nelson2008-07-227-16/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update iommu_alloc() to take the struct dma_attrs and pass them on to tce_build(). This change propagates down to the tce_build functions of all the platforms. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/cell: Add support for power button of future IBM cell bladesChristian Krafft2008-07-224-0/+128
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the power button on future IBM cell blades. It actually doesn't shut down the machine. Instead it exposes an input device /dev/input/event0 to userspace which sends KEY_POWER if power button has been pressed. haldaemon actually recognizes the button, so a plattform independent acpid replacement should handle it correctly. Signed-off-by: Christian Krafft <krafft@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/cell: Cleanup sysreset_hack for IBM cell bladesChristian Krafft2008-07-224-26/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a config option for the sysreset_hack used for IBM Cell blades. The code is moves from pervasive.c into ras.c and gets it's own init method. Signed-off-by: Christian Krafft <krafft@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/cell/cpufreq: Add spu aware cpufreq governorChristian Krafft2008-07-223-0/+194
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a cpufreq governor that takes the number of running spus into account. It's very similar to the ondemand governor, but not as complex. Instead of hacking spu load into the ondemand governor it might be easier to have cpufreq accepting multiple governors per cpu in future. Don't know if this is the right way, but it would keep the governors simple. Signed-off-by: Christian Krafft <krafft@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/axonram: Enable partitioning of the Axons DDR2 DIMMsMaxim Shchetynin2008-07-221-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DDR2 memory DIMMs on the Axon could be accessed only as one partition when using file system drivers which are using the direct_access() method. This patch enables for such file system drivers to access Axon's DDR2 memory even if it is splitted in several partitions. Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/axonram: Use only one block device major numberMaxim Shchetynin2008-07-221-8/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Axonram module registers one block device for each DDR2 DIMM found on a system. This means that each DDR2 DIMM becomes its own block device major number. This patch lets axonram module to register the only one block device for all DDR2 DIMMs which also spares kernel resources. Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | of_gpio: Should use new <linux/gpio.h> headerWolfgang Grandegger2008-07-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 7560fa60fcdcdb0da662f6a9fad9064b554ef46c (gpio: <linux/gpio.h> and "no GPIO support here" stubs) drivers can use GPIOs if they're available, but don't require them. This patch actually enables this feature. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: fix ALSA options in Freescale 85xx and 86xx defconfigsTimur Tabi2008-07-164-12/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The defconfigs for Freescale 85xx and 86xx SOCs had bad choices for some audio related options. In particular, OSS emulation should be enabled, and the old ALSA API should be disabled. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | Revert "powerpc/ep8248e: Fix compile problem if !CONFIG_FS_ENET"Kumar Gala2008-07-161-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit e3621ee633810be1079d0fa65ac2c904f53b73fa. This was not the proper fix. As Scott Wood said CONFIG_FS_ENET has nothing to do with the issue. The proper fix is to select PHYLIB for this board.
| * | | powerpc/ep8248e: Unconditionally select PHYLIB for mdio_bitbangKumar Gala2008-07-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Its possible to build the phylib as a module, however this breaks the board code because alloc_mdio_bitbang and mdiobus_register are not available if we build as a module. These are needed by the board code since it implements the low level mdio bitbang ops. So we unconditionally select PHYLIB to ensure its built into the kernel if we are building in EP8248E support. Long term we should look at moving the mdio_ops into its own file so it can be built as a module. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | powerpc/fsl: Minor TLBSYNC cleanup for FSL Book-EKumar Gala2008-07-161-15/+4
| | | | | | | | | | | | | | | | | | | | | | | | Use the TLBSYNC macro defined in ppc_asm.h rather than our own ifdefs. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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