- 12 7月, 2011 1 次提交
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由 Benjamin Herrenschmidt 提交于
Just compiling pseries in the kernel causes it to override memory_block_size_bytes() regardless of what is the runtime platform. This cleans up the implementation of that function, fixing a bug or two while at it, so that it's harmless (and potentially useful) for other platforms. Without this, bugs in that code would trigger a WARN_ON() in drivers/base/memory.c when booting some different platforms. If/when we have another platform supporting memory hotplug we might want to either move that out to a generic place or make it a ppc_md. callback. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 29 6月, 2011 3 次提交
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由 Christian Dietrich 提交于
Since printk_ratelimit() shouldn't be used anymore (see comment in include/linux/printk.h), replace it with printk_ratelimited. Signed-off-by: NChristian Dietrich <christian.dietrich@informatik.uni-erlangen.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Christian Dietrich 提交于
Don't use printk_ratelimit() as an additional condition for returning on an error. Because when the ratelimit is reached, printk_ratelimit will return 0 and e.g. in rtas_get_boot_time won't check for an error condition. Signed-off-by: NChristian Dietrich <christian.dietrich@informatik.uni-erlangen.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Michael Neuling 提交于
Remove duplicate assignment of SCSI_BNX2_ISCSI in pseries_defconfig introduced by: 37e0c21e powerpc/pseries: Enable iSCSI support for a number of cards causes warning: arch/powerpc/configs/pseries_defconfig:151:warning: override: reassigning to symbol SCSI_BNX2_ISCSI Signed-off-by: NMichael Neuling <mikey@neuling.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 28 6月, 2011 1 次提交
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由 KAMEZAWA Hiroyuki 提交于
commit 21a3c964 uses node_start/end_pfn(nid) for detection start/end of nodes. But, it's not defined in linux/mmzone.h but defined in /arch/???/include/mmzone.h which is included only under CONFIG_NEED_MULTIPLE_NODES=y. Then, we see mm/page_cgroup.c: In function 'page_cgroup_init': mm/page_cgroup.c:308: error: implicit declaration of function 'node_start_pfn' mm/page_cgroup.c:309: error: implicit declaration of function 'node_end_pfn' So, fixiing page_cgroup.c is an idea... But node_start_pfn()/node_end_pfn() is a very generic macro and should be implemented in the same manner for all archs. (m32r has different implementation...) This patch removes definitions of node_start/end_pfn() in each archs and defines a unified one in linux/mmzone.h. It's not under CONFIG_NEED_MULTIPLE_NODES, now. A result of macro expansion is here (mm/page_cgroup.c) for !NUMA start_pfn = ((&contig_page_data)->node_start_pfn); end_pfn = ({ pg_data_t *__pgdat = (&contig_page_data); __pgdat->node_start_pfn + __pgdat->node_spanned_pages;}); for NUMA (x86-64) start_pfn = ((node_data[nid])->node_start_pfn); end_pfn = ({ pg_data_t *__pgdat = (node_data[nid]); __pgdat->node_start_pfn + __pgdat->node_spanned_pages;}); Changelog: - fixed to avoid using "nid" twice in node_end_pfn() macro. Reported-and-acked-by: NRandy Dunlap <randy.dunlap@oracle.com> Reported-and-tested-by: NIngo Molnar <mingo@elte.hu> Acked-by: NMel Gorman <mgorman@suse.de> Signed-off-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 22 6月, 2011 2 次提交
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由 Scott Wood 提交于
The wrong MCSR bit was being used on e500mc. MCSR_BUS_RBERR only exists on e500v1/v2. Use MCSR_LD on e500mc, and remove all MCSR checking in fsl_rio_mcheck_exception as we now no longer call that function if the appropriate bit in MCSR is not set. If RIO support was enabled at compile-time, but was never probed, just return from fsl_rio_mcheck_exception rather than dereference a NULL pointer. TODO: There is still a remaining, though comparitively minor, issue in that this recovery mechanism will falsely engage if there's an unrelated MCSR_LD event at the same time as a RIO error. Signed-off-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Timur Tabi 提交于
On the Freescale P1022DS reference board, the SSI audio controller is connected in "asynchronous" mode to the codec's clocks, so the device tree needs an "fsl,ssi-asynchronous" property. Also remove the clock-frequency property from the wm8776 node, because the clock is enabled only if U-Boot enables it, and U-Boot will set the property if the clock is enabled. A future version of the P1022DS audio driver will configure the clock itself, but for now, the driver should not be told that the clock is running when it isn't. Also fix the FIFO depth to 15, instead of 16. Signed-off-by: NTimur Tabi <timur@freescale.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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- 16 6月, 2011 1 次提交
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由 Wanlong Gao 提交于
RTC_CLASS is changed to bool, so 'm' is invalid. Signed-off-by: NWanlong Gao <wanlong.gao@gmail.com> Acked-by: NMike Frysinger <vapier@gentoo.org> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NHans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 6月, 2011 2 次提交
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由 Benjamin Herrenschmidt 提交于
When using 64K pages with a separate cpio rootfs, U-Boot will align the rootfs on a 4K page boundary. When the memory is reserved, and subsequent early memblock_alloc is called, it will allocate memory between the 64K page alignment and reserved memory. When the reserved memory is subsequently freed, it is done so by pages, causing the early memblock_alloc requests to be re-used, which in my case, caused the device-tree to be clobbered. This patch forces the reserved memory for initrd to be kernel page aligned, and will move the device tree if it overlaps with the range extension of initrd. This patch will also consolidate the identical function free_initrd_mem() from mm/init_32.c, init_64.c to mm/mem.c, and adds the same range extension when freeing initrd. free_initrd_mem() is also moved to the __init section. Many thanks to Milton Miller for his input on this patch. [BenH: Fixed build without CONFIG_BLK_DEV_INITRD] Signed-off-by: NDave Carroll <dcarroll@astekcorp.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Wolfram Sang 提交于
dtc was moved and .gitignores have been added to the new location. So, we can delete the old, forgotten ones. Signed-off-by: NWolfram Sang <w.sang@pengutronix.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 03 6月, 2011 3 次提交
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由 Shaohui Xie 提交于
Signed-off-by: NShaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Kumar Gala 提交于
We are missing FPU feature bit that user space may require. In the 64-bit mode this gets set since we pull it in via COMMON_USER_PPC64. We just explicitly set it so user space will be happy again. Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Kumar Gala 提交于
arch/powerpc/kernel/built-in.o: In function `machine_check_e500mc': arch/powerpc/kernel/traps.c:429: undefined reference to `fsl_rio_mcheck_exception' arch/powerpc/kernel/built-in.o: In function `machine_check_e500': arch/powerpc/kernel/traps.c:519: undefined reference to `fsl_rio_mcheck_exception' make: *** [.tmp_vmlinux1] Error 1 Reported-by: NTimur Tabi <timur@freescale.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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- 31 5月, 2011 1 次提交
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由 Benjamin Herrenschmidt 提交于
The Apple custom PIC only exist in some earlier machine models, anything with an MPIC will crash on suspend if we register those syscore ops unconditionally. This is a regression caused by commit f5a592f7 ("PM / PowerPC: Use struct syscore_ops instead of sysdevs for PM") Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 29 5月, 2011 1 次提交
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由 Eric W. Biederman 提交于
32bit and 64bit on x86 are tested and working. The rest I have looked at closely and I can't find any problems. setns is an easy system call to wire up. It just takes two ints so I don't expect any weird architecture porting problems. While doing this I have noticed that we have some architectures that are very slow to get new system calls. cris seems to be the slowest where the last system calls wired up were preadv and pwritev. avr32 is weird in that recvmmsg was wired up but never declared in unistd.h. frv is behind with perf_event_open being the last syscall wired up. On h8300 the last system call wired up was epoll_wait. On m32r the last system call wired up was fallocate. mn10300 has recvmmsg as the last system call wired up. The rest seem to at least have syncfs wired up which was new in the 2.6.39. v2: Most of the architecture support added by Daniel Lezcano <dlezcano@fr.ibm.com> v3: ported to v2.6.36-rc4 by: Eric W. Biederman <ebiederm@xmission.com> v4: Moved wiring up of the system call to another patch v5: ported to v2.6.39-rc6 v6: rebased onto parisc-next and net-next to avoid syscall conflicts. v7: ported to Linus's latest post 2.6.39 tree. > arch/blackfin/include/asm/unistd.h | 3 ++- > arch/blackfin/mach-common/entry.S | 1 + Acked-by: NMike Frysinger <vapier@gentoo.org> Oh - ia64 wiring looks good. Acked-by: NTony Luck <tony.luck@intel.com> Signed-off-by: NEric W. Biederman <ebiederm@xmission.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 27 5月, 2011 2 次提交
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由 Akinobu Mita 提交于
By the previous style change, CONFIG_GENERIC_FIND_NEXT_BIT, CONFIG_GENERIC_FIND_BIT_LE, and CONFIG_GENERIC_FIND_LAST_BIT are not used to test for existence of find bitops anymore. Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Acked-by: NGreg Ungerer <gerg@uclinux.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Daniel Lezcano 提交于
The ns_cgroup is an annoying cgroup at the namespace / cgroup frontier and leads to some problems: * cgroup creation is out-of-control * cgroup name can conflict when pids are looping * it is not possible to have a single process handling a lot of namespaces without falling in a exponential creation time * we may want to create a namespace without creating a cgroup The ns_cgroup was replaced by a compatibility flag 'clone_children', where a newly created cgroup will copy the parent cgroup values. The userspace has to manually create a cgroup and add a task to the 'tasks' file. This patch removes the ns_cgroup as suggested in the following thread: https://lists.linux-foundation.org/pipermail/containers/2009-June/018616.html The 'cgroup_clone' function is removed because it is no longer used. This is a userspace-visible change. Commit 45531757 ("cgroup: notify ns_cgroup deprecated") (merged into 2.6.27) caused the kernel to emit a printk warning users that the feature is planned for removal. Since that time we have heard from XXX users who were affected by this. Signed-off-by: NDaniel Lezcano <daniel.lezcano@free.fr> Signed-off-by: NSerge E. Hallyn <serge.hallyn@canonical.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Jamal Hadi Salim <hadi@cyberus.ca> Reviewed-by: NLi Zefan <lizf@cn.fujitsu.com> Acked-by: NPaul Menage <menage@google.com> Acked-by: NMatt Helsley <matthltc@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 26 5月, 2011 11 次提交
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由 Rupjyoti Sarmah 提交于
This patch adds MSI support for 440SPe, 460Ex, 460Sx and 405Ex. Signed-off-by: NRupjyoti Sarmah <rsarmah@apm.com> Signed-off-by: NTirumala R Marri <tmarri@apm.com> Acked-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Milton Miller 提交于
Instead of looping over each irq and checking against the irq array bounds, adjust the bounds before looping. The old code will not free any irq if the irq + count is above irq_virq_count because the test in the loop is testing irq + count instead of irq + i. This code checks the limits to avoid unsigned integer overflows. Signed-off-by: NMilton Miller <miltonm@bga.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Milton Miller 提交于
The radix-tree code uses call_rcu when freeing internal elements. We must protect against the elements being freed while we traverse the tree, even if the returned pointer will still be valid. While preparing a patch to expand the context in which irq_radix_revmap_lookup will be called, I realized that the radix tree was not locked. When asked For a normal call_rcu usage, is it allowed to read the structure in irq_enter / irq_exit, without additional rcu_read_lock? Could an element freed with call_rcu advance with the cpu still between irq_enter/irq_exit (and irq_disabled())? Paul McKenney replied: Absolutely illegal to do so. OK for call_rcu_sched(), but a flaming bug for call_rcu(). And thank you very much for finding this!!! Further analysis: In the current CONFIG_TREE_RCU implementation. CONFIG_TREE_PREEMPT_RCU (and CONFIG_TINY_PREEMPT_RCU) uses explicit counters. These counters are reflected from per-CPU to global in the scheduling-clock-interrupt handler, so disabling irq does prevent the grace period from completing. But there are real-time implementations (such as the one use by the Concurrent guys) where disabling irq does -not- prevent the grace period from completing. While an alternative fix would be to switch radix-tree to rcu_sched, I don't want to audit the other users of radix trees (nor put alternative freeing in the library). The normal overhead for rcu_read_lock and unlock are a local counter increment and decrement. This does not show up in the rcu lockdep because in 2.6.34 commit 2676a58c (radix-tree: Disable RCU lockdep checking in radix tree) deemed it too hard to pass the condition of the protecting lock to the library. Signed-off-by: NMilton Miller <miltonm@bga.com> Reviewed-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Milton Miller 提交于
Look up the descriptor and check that it is found in handle_one_irq before checking if we are on the irq stack, and call the handler directly using the descriptor if we are on the stack. We need check irq_to_desc finds the descriptor to avoid a NULL pointer dereference. It could have failed because the number from ppc_md.get_irq was above NR_IRQS, or various exceptional conditions with sparse irqs (eg race conditions while freeing an irq if its was not shutdown in the controller). fe12bc2c (genirq: Uninline and sanity check generic_handle_irq()) moved generic_handle_irq out of line to allow its use by interrupt controllers in modules. However, handle_one_irq is core arch code. It already knows the details of struct irq_desc and handling irqs in the nested irq case. This will avoid the extra stack frame to return the value we don't check. Signed-off-by: NMilton Miller <miltonm@bga.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Milton Miller 提交于
Since kmem caches are allocated before init_IRQ as noted in 3af259d1 (powerpc: Radix trees are available before init_IRQ), we now call kmalloc in all cases and can can always call kfree if we are asked to allocate a duplicate or conflicting IRQ_HOST_MAP_LEGACY host. Signed-off-by: NMilton Miller <miltonm@bga.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Milton Miller 提交于
The comment claims we will call host->ops->map() to update the flags if we find a previously established mapping, but we never did. We used to call remap, but that call was removed in da051980 (powerpc: Remove irq_host_ops->remap hook). Signed-off-by: NMilton Miller <miltonm@bga.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Milton Miller 提交于
Rename functions and arguments to reflect current usage. iic_cause_ipi becomes iic_message_pass and iic_ipi_to_irq becomes iic_msg_to_irq, and iic_request_ipi now takes a message (msg) instead of an ipi number. Also mesg is renamed to msg. Commit f1072939 (powerpc: Remove checks for MSG_ALL and MSG_ALL_BUT_SELF) connected the smp_message_pass hook for cell to the underlying iic_cause_IPI, a platform unique name. Later 23d72bfd (powerpc: Consolidate ipi message mux and demux) added a cause_ipi hook to the smp_ops, also used in message passing, but for controllers that can not send 4 unique messages and require multiplexing. It is even more confusing that the both take two arguments, but one is the small message ordinal and the other is an opaque long data associated with the cpu. Since cell iic maps messages one to one to ipi irqs, rename the function and argument to translate from ipi to message. Also make it clear that iic_request_ipi takes a message number as the argument for which ipi to create and request. No functionional change, just renames to avoid future confusion. Signed-off-by: NMilton Miller <miltonm@bga.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Milton Miller 提交于
The cell iic interrupt controller has enough software caused interrupts to use a unique interrupt for each of the 4 messages powerpc uses. This means each interrupt gets its own irq action/data combination. Use the seperate, optimized, arch common ipi action functions registered via the helper smp_request_message_ipi instead passing the message as action data to a single action that then demultipexes to the required acton via a switch statement. smp_request_message_ipi will register the action as IRQF_PER_CPU and IRQF_DISABLED, and WARN if the allocation fails for some reason, so no need to print on that failure. It will return positive if the message will not be used by the kernel, in which case we can free the virq. In addition to elimiating inefficient code, this also corrects the error that a kernel built with kexec but without a debugger would not register the ipi for kdump to notify the other cpus of a crash. This also restores the debugger action to be static to kernel/smp.c. Signed-off-by: NMilton Miller <miltonm@bga.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Brian King 提交于
When page coalescing support was added recently, the MAX_HCALL_OPCODE define was not updated for the newly added H_GET_MPP_X hcall. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Eric B Munson 提交于
Commit 0837e324 fixes a situation on POWER7 where events can roll back if a specualtive event doesn't actually complete. This can raise a performance monitor exception. We need to catch this to ensure that we reset the PMC. In all cases the PMC will be less than 256 cycles from overflow. This patch lifts Anton's fix for the problem in perf and applies it to oprofile as well. Signed-off-by: NEric B Munson <emunson@mgebm.net> Cc: <stable@kernel.org> # as far back as it applies cleanly Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Ian Munsie 提交于
This patch implements the raw syscall tracepoints on PowerPC and exports them for ftrace syscalls to use. To minimise reworking existing code, I slightly re-ordered the thread info flags such that the new TIF_SYSCALL_TRACEPOINT bit would still fit within the 16 bits of the andi. instruction's UI field. The instructions in question are in /arch/powerpc/kernel/entry_{32,64}.S to and the _TIF_SYSCALL_T_OR_A with the thread flags to see if system call tracing is enabled. In the case of 64bit PowerPC, arch_syscall_addr and arch_syscall_match_sym_name are overridden to allow ftrace syscalls to work given the unusual system call table structure and symbol names that start with a period. Signed-off-by: NIan Munsie <imunsie@au1.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 25 5月, 2011 5 次提交
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由 Stephen Boyd 提交于
Most arches define CONFIG_DEBUG_STACK_USAGE exactly the same way. Move it to lib/Kconfig.debug so each arch doesn't have to define it. This obviously makes the option generic, but that's fine because the config is already used in generic code. It's not obvious to me that sysrq-P actually does anything caution by keeping the most inclusive wording. Signed-off-by: NStephen Boyd <sboyd@codeaurora.org> Cc: Chris Metcalf <cmetcalf@tilera.com> Acked-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NRichard Weinberger <richard@nod.at> Acked-by: NMike Frysinger <vapier@gentoo.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Hirokazu Takata <takata@linux-m32r.org> Acked-by: NRalf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Stephen Boyd 提交于
DEBUG_PER_CPU_MAPS is used in lib/cpumask.c as well as in inlcude/linux/cpumask.h and thus it has outgrown its use within x86 and powerpc alone. Any arch with SMP support may want to get some more debugging, so make this option generic. Signed-off-by: NStephen Boyd <sboyd@codeaurora.org> Cc: <linux-arch@vger.kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Peter Zijlstra 提交于
In case other architectures require RCU freed page-tables to implement gup_fast() and software filled hashes and similar things, provide the means to do so by moving the logic into generic code. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Requested-by: NDavid Miller <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Tony Luck <tony.luck@intel.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Namhyung Kim <namhyung@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Peter Zijlstra 提交于
Fix up powerpc to the new mmu_gather stuff. PPC has an extra batching queue to RCU free the actual pagetable allocations, use the ARCH extentions for that for now. For the ppc64_tlb_batch, which tracks the vaddrs to unhash from the hardware hash-table, keep using per-cpu arrays but flush on context switch and use a TLF bit to track the lazy_mmu state. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Miller <davem@davemloft.net> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Tony Luck <tony.luck@intel.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Namhyung Kim <namhyung@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rafael J. Wysocki 提交于
All architectures supporting hibernation define arch_prepare_suspend() as an empty function, so remove it. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 24 5月, 2011 2 次提交
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由 Eric B Munson 提交于
Commit 0837e324 fixes a situation on POWER7 where events can roll back if a specualtive event doesn't actually complete. This can raise a performance monitor exception. We need to catch this to ensure that we reset the PMC. In all cases the PMC will be less than 256 cycles from overflow. This patch lifts Anton's fix for the problem in perf and applies it to oprofile as well. Signed-off-by: NEric B Munson <emunson@mgebm.net> Cc: <stable@kernel.org> # as far back as it applies cleanly Tested-by: NMaynard Johnson <maynardj@us.ibm.com> Signed-off-by: NRobert Richter <robert.richter@amd.com>
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由 Richard Cochran 提交于
The eTSEC includes a PTP clock with quite a few features. This patch adds support for the basic clock adjustment functions, plus two external time stamps, one alarm, and the PPS callback. Signed-off-by: NRichard Cochran <richard.cochran@omicron.at> Acked-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NJohn Stultz <john.stultz@linaro.org> Signed-off-by: NJohn Stultz <john.stultz@linaro.org>
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- 22 5月, 2011 5 次提交
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由 Scott Wood 提交于
Signed-off-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NAlexander Graf <agraf@suse.de>
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由 Scott Wood 提交于
Linux doesn't use USPRG0 (now renamed VRSAVE in the architecture, even when Altivec isn't involved), but a guest might. Signed-off-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NAlexander Graf <agraf@suse.de>
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由 Stuart Yoder 提交于
Convert to microseconds when displaying (with fix from Bharat Bhushan <Bharat.Bhushan@freescale.com>). This reduces rounding error with large quantities of short exits. Signed-off-by: NStuart Yoder <stuart.yoder@freescale.com> Signed-off-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NAlexander Graf <agraf@suse.de>
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由 Scott Wood 提交于
The exit type setting for mfspr/mtspr is moved from 44x to toplevel SPR emulation. This enables it on e500, and makes sure that all SPRs are covered. Exit accounting for tlbwe and tlbsx is added to e500. Signed-off-by: NStuart Yoder <stuart.yoder@freescale.com> Signed-off-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NAlexander Graf <agraf@suse.de>
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由 Scott Wood 提交于
Return the actual host SVR for now, as we already do for PVR. Eventually we may support Qemu overriding PVR/SVR if the situation is appropriate, once we implement KVM_SET_SREGS on e500. Signed-off-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NAlexander Graf <agraf@suse.de>
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