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* [POWERPC] 8xx: fix swapVitaly Bordug2008-03-071-8/+0
| | | | | | | | | | | | | | This makes swap routines operate correctly on the ppc_8xx based machines. Code has been revalidated on mpc885ads (8M sdram) with recent kernel. Based on patch from Yuri Tikhonov <yur@emcraft.com> to do the same on arch/ppc instance. Recent kernel's size makes swap feature very important on low-memory platforms, those are actually non-operable without it. Signed-off-by: Yuri Tikhonov <yur@emcraft.com> Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Kprobes: indicate kretprobe support in KconfigAnanth N Mavinakayanahalli2008-03-051-1/+0
| | | | | | | | | | | | | | | | | Add CONFIG_HAVE_KRETPROBES to the arch/<arch>/Kconfig file for relevant architectures with kprobes support. This facilitates easy handling of in-kernel modules (like samples/kprobes/kretprobe_example.c) that depend on kretprobes being present in the kernel. Thanks to Sam Ravnborg for helping make the patch more lean. Per Mathieu's suggestion, added CONFIG_KRETPROBES and fixed up dependencies. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [POWERPC] move celleb DABRX definitionsJens Osterkamp2008-03-031-0/+3
| | | | | | | | This moves the private DABRX definitions for celleb from beat.h to reg.h to make them usable for all. Signed-off-by: Jens Osterkamp <jens@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* percpu: fix DEBUG_PREEMPT per_cpu checkingHugh Dickins2008-02-231-1/+1
| | | | | | | | | | | | | | | | | 2.6.25-rc1 percpu changes broke CONFIG_DEBUG_PREEMPT's per_cpu checking on several architectures. On s390, sparc64 and x86 it's been weakened to not checking at all; whereas on powerpc64 it's become too strict, issuing warnings from __raw_get_cpu_var in io_schedule and init_timer for example. Fix this by weakening powerpc's __my_cpu_offset to use the non-checking local_paca instead of get_paca (which itself contains such a check); and strengthening the generic my_cpu_offset to go the old slow way via smp_processor_id when CONFIG_DEBUG_PREEMPT (debug_smp_processor_id is where all the knowledge of what's correct when lives). Signed-off-by: Hugh Dickins <hugh@veritas.com> Reviewed-by: Mike Travis <travis@sgi.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [POWERPC] cell: fix spurious false return from spu_trap_data_{map,seg}Andre Detsch2008-02-201-2/+1
| | | | | | | | | | | | | At present, the __spufs_trap_data_map and __spu_trap_data_seq functions exit if spu->flags has the SPU_CONTEXT_SWITCH_ACTIVE set. This was resulting in suprious returns from these functions, as they may be legitimately called when we have this bit set. We only use it in these two sanity checks, so this change removes the flag completely. This fixes hangs in the page-fault path of SPE apps. Signed-off-by: Andre Detsch <adetsch@br.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* [POWERPC] Wire up new timerfd syscallsStephen Rothwell2008-02-142-3/+7
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'for-2.6.25' of ↵Linus Torvalds2008-02-081-0/+8
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Add arch-specific walk_memory_remove() for 64-bit powerpc [POWERPC] Enable hotplug memory remove for 64-bit powerpc [POWERPC] Add remove_memory() for 64-bit powerpc [POWERPC] Make cell IOMMU fixed mapping printk more useful [POWERPC] Fix potential cell IOMMU bug when switching back to default DMA ops [POWERPC] Don't enable cell IOMMU fixed mapping if there are no dma-ranges [POWERPC] Fix cell IOMMU null pointer explosion on old firmwares [POWERPC] spufs: Fix timing dependent false return from spufs_run_spu [POWERPC] spufs: No need to have a runnable SPU for libassist update [POWERPC] spufs: Update SPU_Status[CISHP] in backing runcntl write [POWERPC] spufs: Fix state_mutex leaks [POWERPC] Disable G5 NAP mode during SMU commands on U3
| * [POWERPC] Disable G5 NAP mode during SMU commands on U3Benjamin Herrenschmidt2008-02-081-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It appears that with the U3 northbridge, if the processor is in NAP mode the whole time while waiting for an SMU command to complete, then the SMU will fail. It could be related to the weird backward mechanism the SMU uses to get to system memory via i2c to the northbridge that doesn't operate properly when the said bridge is in napping along with the CPU. That is on U3 at least, U4 doesn't seem to be affected. This didn't show before NO_HZ as the timer wakeup was enough to make it work it seems, but that is no longer the case. This fixes it by disabling NAP mode on those machines while an SMU command is in flight. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | CONFIG_HIGHPTE vs. sub-page page tables.Martin Schwidefsky2008-02-083-9/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Background: I've implemented 1K/2K page tables for s390. These sub-page page tables are required to properly support the s390 virtualization instruction with KVM. The SIE instruction requires that the page tables have 256 page table entries (pte) followed by 256 page status table entries (pgste). The pgstes are only required if the process is using the SIE instruction. The pgstes are updated by the hardware and by the hypervisor for a number of reasons, one of them is dirty and reference bit tracking. To avoid wasting memory the standard pte table allocation should return 1K/2K (31/64 bit) and 2K/4K if the process is using SIE. Problem: Page size on s390 is 4K, page table size is 1K or 2K. That means the s390 version for pte_alloc_one cannot return a pointer to a struct page. Trouble is that with the CONFIG_HIGHPTE feature on x86 pte_alloc_one cannot return a pointer to a pte either, since that would require more than 32 bit for the return value of pte_alloc_one (and the pte * would not be accessible since its not kmapped). Solution: The only solution I found to this dilemma is a new typedef: a pgtable_t. For s390 pgtable_t will be a (pte *) - to be introduced with a later patch. For everybody else it will be a (struct page *). The additional problem with the initialization of the ptl lock and the NR_PAGETABLE accounting is solved with a constructor pgtable_page_ctor and a destructor pgtable_page_dtor. The page table allocation and free functions need to call these two whenever a page table page is allocated or freed. pmd_populate will get a pgtable_t instead of a struct page pointer. To get the pgtable_t back from a pmd entry that has been installed with pmd_populate a new function pmd_pgtable is added. It replaces the pmd_page call in free_pte_range and apply_to_pte_range. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | asm-*/posix_types.h: scrub __GLIBC__Mike Frysinger2008-02-081-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Some arches (like alpha and ia64) already have a clean posix_types.h header. This brings all the others in line by removing all references to __GLIBC__ (and some undocumented __USE_ALL). Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | aout: move STACK_TOP[_MAX] to asm/processor.hDavid Howells2008-02-082-19/+19
|/ | | | | | | | | | Move STACK_TOP[_MAX] out of asm/a.out.h and into asm/processor.h as they're required whether or not A.OUT format is available. Signed-off-by: David Howells <dhowells@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-2.6.25' of ↵Linus Torvalds2008-02-0712-84/+183
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (69 commits) [POWERPC] Add SPE registers to core dumps [POWERPC] Use regset code for compat PTRACE_*REGS* calls [POWERPC] Use generic compat_sys_ptrace [POWERPC] Use generic compat_ptrace_request [POWERPC] Use generic ptrace peekdata/pokedata [POWERPC] Use regset code for PTRACE_*REGS* requests [POWERPC] Switch to generic compat_binfmt_elf code [POWERPC] Switch to using user_regset-based core dumps [POWERPC] Add user_regset compat support [POWERPC] Add user_regset_view definitions [POWERPC] Use user_regset accessors for GPRs [POWERPC] ptrace accessors for special regs MSR and TRAP [POWERPC] Use user_regset accessors for SPE regs [POWERPC] Use user_regset accessors for altivec regs [POWERPC] Use user_regset accessors for FP regs [POWERPC] mpc52xx: fix compile error introduce when rebasing patch [POWERPC] 4xx: PCIe indirect DCR spinlock fix. [POWERPC] Add missing native dcr dcr_ind_lock spinlock [POWERPC] 4xx: Fix offset value on Warp board [POWERPC] 4xx: Add 440EPx Sequoia ehci dts entry ...
| * [POWERPC] Use generic compat_sys_ptraceRoland McGrath2008-02-071-0/+2
| | | | | | | | | | | | | | | | This replaces powerpc's compat_sys_ptrace with a compat_arch_ptrace and enables the new generic definition of compat_sys_ptrace instead. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [POWERPC] Switch to generic compat_binfmt_elf codeRoland McGrath2008-02-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | This switches the CONFIG_PPC64 support for 32-bit ELF to use the generic fs/compat_binfmt_elf.c implementation instead of our own binfmt_elf32.c. Since so much is the same between 32/64, there is only one macro we have to define to make the generic support work out of the box. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [POWERPC] Switch to using user_regset-based core dumpsRoland McGrath2008-02-071-0/+1
| | | | | | | | | | | | | | | | | | | | This switches powerpc to using the user_regset-based code for ELF core dumps. The core dumps come out exactly the same either way, except that the NT_PPC_VMX note is now omitted for any thread that never touched its Altivec registers (thread_struct.vr_used). Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [POWERPC] 4xx: PCIe indirect DCR spinlock fix.Valentine Barshak2008-02-071-18/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we have mfdcri() and mtdcri() as macros, we can't use constructions, such as "mtdcri(base, reg, mfdcri(base, reg) | val)". In this case the mfdcri() stuff is not evaluated first. It's evaluated inside the mtdcri() macro and we have the dcr_ind_lock spinlock acquired twice. To avoid this error, I've added __mfdcri()/__mtdcri() inline functions that take the lock after register name fix-up. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
| * [POWERPC] Fix compilation for CONFIG_DEBUGGER=n and CONFIG_KEXEC=yOlof Johansson2008-02-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Looks like "[POWERPC] kdump shutdown hook support" broke builds when CONFIG_DEBUGGER=n and CONFIG_KEXEC=y, such as in g5_defconfig: arch/powerpc/kernel/crash.c: In function 'default_machine_crash_shutdown': arch/powerpc/kernel/crash.c:388: error: '__debugger_fault_handler' undeclared (first use in this function) arch/powerpc/kernel/crash.c:388: error: (Each undeclared identifier is reported only once arch/powerpc/kernel/crash.c:388: error: for each function it appears in.) Move the debugger hooks to under CONFIG_DEBUGGER || CONFIG_KEXEC, since that's when the crash code is enabled. (I should have caught this with my build-script pre-merge, my bad. :( ) Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * Merge branch 'for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-mpc52xx ↵Paul Mackerras2008-02-072-0/+70
| |\ | | | | | | | | | into for-2.6.25
| | * [POWERPC] mpc512x: Add MPC512x PSC support to MPC52xx psc driverJohn Rigby2008-02-061-0/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add 512x support using the psc_ops framework established with the previous patch. All 512x PSCs share the same interrupt so add IRQF_SHARED to irq flags. Signed-off-by: John Rigby <jrigby@freescale.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| | * [POWERPC] mpc512x: Basic platform supportJohn Rigby2008-02-061-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 512x is very similar to 83xx and most of this is patterned after code from 83xx. New platform: changed: arch/powerpc/Kconfig arch/powerpc/platforms/Kconfig arch/powerpc/platforms/Kconfig.cputype arch/powerpc/platforms/Makefile new: arch/powerpc/platforms/512x/* include/asm-powerpc/mpc512x.h Signed-off-by: John Rigby <jrigby@freescale.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | Merge branch 'for-2.6.25' of ↵Paul Mackerras2008-02-065-64/+78
| |\ \ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into for-2.6.25
| | * | [POWERPC] Made FSL Book-E PMC support more genericAndy Fleming2008-02-065-64/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some of the more recent e300 cores have the same performance monitor implementation as the e500. e300 isn't book-e, so the name isn't really appropriate. In preparation for e300 support, rename a bunch of fsl_booke things to say fsl_emb (Freescale Embedded Performance Monitors). Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | [POWERPC] iSeries: Fix section mismatch in viodsasdStephen Rothwell2008-02-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | WARNING: vmlinux.o(.text+0x3017c): Section mismatch in reference from the function .vio_create_viodasd() to the function .devinit.text:.vio_register_device_node() Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | | | Add cmpxchg64 and cmpxchg64_local to powerpcMathieu Desnoyers2008-02-071-2/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure that at least cmpxchg64_local is available on all architectures to use for unsigned long long values. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Sanitize the type of struct user.u_ar0H. Peter Anvin2008-02-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | struct user.u_ar0 is defined to contain a pointer offset on all architectures in which it is defined (all architectures which define an a.out format except SPARC.) However, it has a pointer type in the headers, which is pointless -- <asm/user.h> is not exported to userspace, and it just makes the code messy. Redefine the field as "unsigned long" (which is the same size as a pointer on all Linux architectures) and change the setting code to user offsetof() instead of hand-coded arithmetic. Cc: Linux Arch Mailing List <linux-arch@vger.kernel.org> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Håvard Skinnemoen <hskinnemoen@atmel.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Luck <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Cleanup asm/{elf,page,user}.h: #ifdef __KERNEL__ is no longer neededKirill A. Shutemov2008-02-074-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | asm/elf.h, asm/page.h and asm/user.h don't export to userspace now, so we can drop #ifdef __KERNEL__ for them. [k.shutemov@gmail.com: remove #ifdef __KERNEL_] Signed-off-by: Kirill A. Shutemov <k.shutemov@gmail.com> Reviewed-by: David Woodhouse <dwmw2@infradead.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Kirill A. Shutemov <k.shutemov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ps3: use symbolic names for video modesGeert Uytterhoeven2008-02-061-11/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use symbolic names for video modes Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ps3av: ps3av_get_scanmode() and ps3av_get_refresh_rate() are unusedGeert Uytterhoeven2008-02-061-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ps3av_get_scanmode() and ps3av_get_refresh_rate() are unused, so remove them Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | scheduled OSS driver removalAdrian Bunk2008-02-061-35/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch contains the scheduled removal of OSS drivers whose config options have been removed in 2.6.23. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | taskstats scaled time cleanupMichael Neuling2008-02-062-2/+14
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This moves the ability to scale cputime into generic code. This allows us to fix the issue in kernel/timer.c (noticed by Balbir) where we could only add an unscaled value to the scaled utime/stime. This adds a cputime_to_scaled function. As before, the POWERPC version does the scaling based on the last SPURR/PURR ratio calculated. The generic and s390 (only other arch to implement asm/cputime.h) versions are both NOPs. Also moves the SPURR and PURR snapshots closer. Signed-off-by: Michael Neuling <mikey@neuling.org> Cc: Jay Lan <jlan@engr.sgi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | ppc: fix #ifdef-s in mediabay driver (take 2)Bartlomiej Zolnierkiewicz2008-02-061-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Replace incorrect CONFIG_BLK_DEV_IDE #ifdef in check_media_bay() by CONFIG_MAC_FLOPPY one. * Replace incorrect CONFIG_BLK_DEV_IDE #ifdef-s by CONFIG_BLK_DEV_IDE_PMAC ones. * check_media_bay() is used only by drivers/block/swim3.c so make this function available only if CONFIG_MAC_FLOPPY is defined. * check_media_bay_by_base() and media_bay_set_ide_infos() are used only by drivers/ide/ppc/pmac.c so so make these functions available only if CONFIG_MAC_FLOPPY is defined. v2: * Remove ifdefs from function prototypes. (Andrew Morton) Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | | add mm argument to pte/pmd/pud/pgd_freeBenjamin Herrenschmidt2008-02-052-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (with Martin Schwidefsky <schwidefsky@de.ibm.com>) The pgd/pud/pmd/pte page table allocation functions get a mm_struct pointer as first argument. The free functions do not get the mm_struct argument. This is 1) asymmetrical and 2) to do mm related page table allocations the mm argument is needed on the free function as well. [kamalesh@linux.vnet.ibm.com: i386 fix] [akpm@linux-foundation.org: coding-syle fixes] Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | maps4: rework TASK_SIZE macrosDave Hansen2008-02-051-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following replaces the earlier patches sent. It should address David Rientjes's comments, and has been compile tested on all the architectures that it touches, save for parisc. For the /proc/<pid>/pagemap code[1], we need to able to query how much virtual address space a particular task has. The trick is that we do it through /proc and can't use TASK_SIZE since it references "current" on some arches. The process opening the /proc file might be a 32-bit process opening a 64-bit process's pagemap file. x86_64 already has a TASK_SIZE_OF() macro: #define TASK_SIZE_OF(child) ((test_tsk_thread_flag(child, TIF_IA32)) ? IA32_PAGE_OFFSET : TASK_SIZE64) I'd like to have that for other architectures. So, add it for all the architectures that actually use "current" in their TASK_SIZE. For the others, just add a quick #define in sched.h to use plain old TASK_SIZE. 1. http://www.linuxworld.com/news/2007/042407-kernel.html - MIPS portion from Ralf Baechle <ralf@linux-mips.org> [akpm@linux-foundation.org: fix mips build] Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Matt Mackall <mpm@selenic.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | iommu sg: powerpc: convert iommu to use the IOMMU helperFUJITA Tomonori2008-02-051-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts PPC's IOMMU to use the IOMMU helper functions. The IOMMU doesn't allocate a memory area spanning LLD's segment boundary anymore. iseries_hv_alloc and iseries_hv_map don't have proper device struct. 4GB boundary is used for them. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | iommu sg merging: ppc: make iommu respect the segment size limitsFUJITA Tomonori2008-02-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes iommu respect segment size limits when merging sg lists. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Acked-by: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | include/asm-powerpc/nvram.h needs list.hAndrew Morton2008-02-051-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CC [M] sound/ppc/awacs.o In file included from sound/ppc/awacs.c:24: include/asm/nvram.h:62: error: field 'partition' has incomplete type Reported-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | timerfd: new timerfd APIDavide Libenzi2008-02-051-1/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the new timerfd API as it is implemented by the following patch: int timerfd_create(int clockid, int flags); int timerfd_settime(int ufd, int flags, const struct itimerspec *utmr, struct itimerspec *otmr); int timerfd_gettime(int ufd, struct itimerspec *otmr); The timerfd_create() API creates an un-programmed timerfd fd. The "clockid" parameter can be either CLOCK_MONOTONIC or CLOCK_REALTIME. The timerfd_settime() API give new settings by the timerfd fd, by optionally retrieving the previous expiration time (in case the "otmr" parameter is not NULL). The time value specified in "utmr" is absolute, if the TFD_TIMER_ABSTIME bit is set in the "flags" parameter. Otherwise it's a relative time. The timerfd_gettime() API returns the next expiration time of the timer, or {0, 0} if the timerfd has not been set yet. Like the previous timerfd API implementation, read(2) and poll(2) are supported (with the same interface). Here's a simple test program I used to exercise the new timerfd APIs: http://www.xmailserver.org/timerfd-test2.c [akpm@linux-foundation.org: coding-style cleanups] [akpm@linux-foundation.org: fix ia64 build] [akpm@linux-foundation.org: fix m68k build] [akpm@linux-foundation.org: fix mips build] [akpm@linux-foundation.org: fix alpha, arm, blackfin, cris, m68k, s390, sparc and sparc64 builds] [heiko.carstens@de.ibm.com: fix s390] [akpm@linux-foundation.org: fix powerpc build] [akpm@linux-foundation.org: fix sparc64 more] Signed-off-by: Davide Libenzi <davidel@xmailserver.org> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Davide Libenzi <davidel@xmailserver.org> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | asm-*/compat.h: fix typo in commentMarcin Ślusarz2008-02-031-1/+1
| | | | | | | | | | Signed-off-by: Marcin Ślusarz <marcin.slusarz@gmail.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
* | [NET]: Introducing socket mark socket option.Laszlo Attila Toth2008-02-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | A userspace program may wish to set the mark for each packets its send without using the netfilter MARK target. Changing the mark can be used for mark based routing without netfilter or for packet filtering. It requires CAP_NET_ADMIN capability. Signed-off-by: Laszlo Attila Toth <panther@balabit.hu> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'for-2.6.25' of ↵Linus Torvalds2008-01-3149-635/+994
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (454 commits) [POWERPC] Cell IOMMU fixed mapping support [POWERPC] Split out the ioid fetching/checking logic [POWERPC] Add support to cell_iommu_setup_page_tables() for multiple windows [POWERPC] Split out the IOMMU logic from cell_dma_dev_setup() [POWERPC] Split cell_iommu_setup_hardware() into two parts [POWERPC] Split out the logic that allocates struct iommus [POWERPC] Allocate the hash table under 1G on cell [POWERPC] Add set_dma_ops() to match get_dma_ops() [POWERPC] 83xx: Clean up / convert mpc83xx board DTS files to v1 format. [POWERPC] 85xx: Only invalidate TLB0 and TLB1 [POWERPC] 83xx: Fix typo in mpc837x compatible entries [POWERPC] 85xx: convert sbc85* boards to use machine_device_initcall [POWERPC] 83xx: rework platform Kconfig [POWERPC] 85xx: rework platform Kconfig [POWERPC] 86xx: Remove unused IRQ defines [POWERPC] QE: Explicitly set address-cells and size cells for muram [POWERPC] Convert StorCenter DTS file to /dts-v1/ format. [POWERPC] 86xx: Convert all 86xx DTS files to /dts-v1/ format. [PPC] Remove 85xx from arch/ppc [PPC] Remove 83xx from arch/ppc ...
| * [POWERPC] Add set_dma_ops() to match get_dma_ops()Michael Ellerman2008-01-311-0/+5
| | | | | | | | | | | | Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * Merge branch 'linux-2.6'Paul Mackerras2008-01-316-21/+478
| |\
| * \ Merge branch 'for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-mpc52xxPaul Mackerras2008-01-311-3/+6
| |\ \
| | * | [POWERPC] Add common clock setting routine mpc52xx_psc_set_clkdiv()Grant Likely2008-01-261-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PSC drivers should not access the CDM registers directly. Instead provide a common routine for setting the PSC clock parameters with the required locking. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | | [POWERPC] 86xx: Remove unused IRQ definesKumar Gala2008-01-281-86/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 86xx uses the flat device tree for all its needs so we dont need explicit IRQ info. Its not clear why this code existed since 86xx never existed in arch/ppc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | [PPC] Remove 85xx from arch/ppcKumar Gala2008-01-281-121/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 85xx exists in arch/powerpc as well as cuImage support to boot from a u-boot that doesn't support device trees. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | [PPC] Remove 83xx from arch/ppcKumar Gala2008-01-281-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 83xx exists in arch/powerpc as well as cuImage support to boot from a u-boot that doesn't support device trees. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | [POWERPC] CPM: Move definition of buffer descriptor to cpm.hJochen Friedrich2008-01-283-129/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Buffer descriptors are used by both CPM1 and CPM2. Move the definitions from the cpm dependent include file to common cpm.h Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | [POWERPC] CPM: Rename commproc to cpm1 and cpm2_common.c to cpm2.cJochen Friedrich2008-01-281-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename commproc.[ch] to cpm1.[ch] to be more consistent with cpm2. Also rename cpm2_common.c to cpm2.c as suggested by Scott Wood. Adjust the includes accordingly. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | [POWERPC] 8xx: Get rid of conditional includes of board specific setupJochen Friedrich2008-01-281-20/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Directly include mpc885ads.h from mpc885ads_setup.c. Now we can get rid of the arch dependent includes in mpc8xx.h. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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