- 10 8月, 2009 4 次提交
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由 FUJITA Tomonori 提交于
This is a preparation for using asm-generic/pci-dma-compat.h; SPARC32 has two dma_map_ops structures for pci and sbus (removing arch/sparc/kernel/dma.c, PCI and SBUS DMA accessor). Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: NRobert Reif <reif@earthlink.net> Acked-by: NDavid S. Miller <davem@davemloft.net> Cc: tony.luck@intel.com Cc: fenghua.yu@intel.com LKML-Reference: <1249872797-1314-7-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 FUJITA Tomonori 提交于
Now sparc uses include/asm-generic/dma-mapping-common.h. pci_sun4v.c doesn't need to have no-op dma_4v_sync_single_for_cpu and dma_4v_sync_sg_for_cpu (dma-mapping-common.h does nothing if sync_{single|sg}_for_cpu hook is not defined). So we can remove them safely. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: NRobert Reif <reif@earthlink.net> Acked-by: NDavid S. Miller <davem@davemloft.net> Cc: tony.luck@intel.com Cc: fenghua.yu@intel.com LKML-Reference: <1249872797-1314-6-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 FUJITA Tomonori 提交于
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: NRobert Reif <reif@earthlink.net> Acked-by: NDavid S. Miller <davem@davemloft.net> Cc: tony.luck@intel.com Cc: fenghua.yu@intel.com LKML-Reference: <1249872797-1314-5-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 FUJITA Tomonori 提交于
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: NRobert Reif <reif@earthlink.net> Acked-by: NDavid S. Miller <davem@davemloft.net> Cc: tony.luck@intel.com Cc: fenghua.yu@intel.com LKML-Reference: <1249872797-1314-4-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 13 7月, 2009 2 次提交
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由 Kay Sievers 提交于
The name size limit is gone from the driver-core, the BUS_ID_SIZE value will be removed. Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alexey Dobriyan 提交于
* Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 26 6月, 2009 1 次提交
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由 David S. Miller 提交于
The page allocator and SLAB are available at this point now, and if we still try to use bootmem allocations here the kernel spits out warnings. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 6月, 2009 1 次提交
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由 Matthew Wilcox 提交于
This function was only used by pci_claim_resource(), and the last commit deleted that use. Signed-off-by: NMatthew Wilcox <willy@linux.intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 17 6月, 2009 1 次提交
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由 Alexey Dobriyan 提交于
* create mm/init-mm.c, move init_mm there * remove INIT_MM, initialize init_mm with C99 initializer * unexport init_mm on all arches: init_mm is already unexported on x86. One strange place is some OMAP driver (drivers/video/omap/) which won't build modular, but it's already wants get_vm_area() export. Somebody should look there. [akpm@linux-foundation.org: add missing #includes] Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Cc: Americo Wang <xiyou.wangcong@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 16 6月, 2009 19 次提交
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stephen Rothwell 提交于
CPU_MASK_ALL is the (deprecated) "all bits set" cpumask, defined as so: #define CPU_MASK_ALL (cpumask_t) { { ... } } Taking the address of such a temporary is questionable at best, unfortunately 321a8e9d (cpumask: add CPU_MASK_ALL_PTR macro) added CPU_MASK_ALL_PTR: #define CPU_MASK_ALL_PTR (&CPU_MASK_ALL) Which formalizes this practice. One day gcc could bite us over this usage (though we seem to have gotten away with it so far). [Description by Rusty Russell] Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NSteven Rostedt <rostedt@goodmis.org> Acked-by: NIngo Molnar <mingo@elte.hu>
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由 Robert Reif 提交于
This patch moves code common to of_device_32.c and of_device_64.c into of_device_common.h and of_device_common.c. The only functional difference is in sparc32 where of_bus_default_map is used in place of of_bus_sbus_map because they are equivelent. There is still room for further code consolidation with some minor refactoring. Boot tested on sparc32 and compile tested on sparc64. Signed-off-by: NRobert Reif <reif@earthlink.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 FUJITA Tomonori 提交于
This modifies SPARC32 to use struct dma_map ops. It means that we can remove dma-mapping_{32|64}.h. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: NRobert Reif <reif@earthlink.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 FUJITA Tomonori 提交于
This patch converts dma_map_single and dma_unmap_single to use map_page and unmap_page respectively and removes unnecessary map_single and unmap_single. map_page can be used to implement map_single but the opposite is impossible. Having only dma_map_page in struct dma_ops is enough. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: NRobert Reif <reif@earthlink.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 FUJITA Tomonori 提交于
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: NRobert Reif <reif@earthlink.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hong H. Pham 提交于
irq_choose_cpu() should compare the affinity mask against cpu_online_map rather than CPU_MASK_ALL, since irq_select_affinity() sets the interrupt's affinity mask to cpu_online_map "and" CPU_MASK_ALL (which ends up being just cpu_online_map). The mask comparison in irq_choose_cpu() will always fail since the two masks are not the same. So the CPU chosen is the first CPU in the intersection of cpu_online_map and CPU_MASK_ALL, which is always CPU0. That means all interrupts are reassigned to CPU0... Distributing interrupts to CPUs in a linearly increasing round robin fashion is not optimal for the UltraSPARC T1/T2. Also, the irq_rover in irq_choose_cpu() causes an interrupt to be assigned to a different processor each time the interrupt is allocated and released. This may lead to an unbalanced distribution over time. A static mapping of interrupts to processors is done to optimize and balance interrupt distribution. For the T1/T2, interrupts are spread to different cores first, and then to strands within a core. The following is some benchmarks showing the effects of interrupt distribution on a T2. The test was done with iperf using a pair of T5220 boxes, each with a 10GBe NIU (XAUI) connected back to back. TCP | Stock Linear RR IRQ Optimized IRQ Streams | 2.6.30-rc5 Distribution Distribution | GBits/sec GBits/sec GBits/sec --------+----------------------------------------- 1 0.839 0.862 0.868 8 1.16 4.96 5.88 16 1.15 6.40 8.04 100 1.09 7.28 8.68 Signed-off-by: NHong H. Pham <hong.pham@windriver.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
This gets us real close to the generic implementation of setup_per_cpu_areas() except: 1) We store the per-cpu offset into the trap_block[], whereas the generic code has it's own static array. 2) We have to initialize the %g5 register to hold the boot cpu's per-cpu area offset. 3) The OBP/MDESC cpu info scan is performed at the end. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Now that we defer the cpu_data() initializations to the end of per-cpu setup, we can get rid of this local hack we had to setup the per-cpu areas eary. This is a necessary step in order to support HAVE_DYNAMIC_PER_CPU_AREA since the per-cpu setup must run when page structs are available. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
We need to split up the cpu present mask setup from the cpu_data initialization, and this is a first step towards that. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
With feedback from Sam Ravnborg. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Surprisingly this actually makes LOAD_PER_CPU_BASE() a little more efficient. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
This really isn't necessary at all, a local variable suits the job just fine. This frees up 8 bytes in the trap_block[] that we can use later to store the per-cpu base addresses. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 6月, 2009 1 次提交
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由 Rusty Russell 提交于
Everyone cut and paste this comment from my original one. We now do it generically, so cut the comments. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Cc: Amerigo Wang <amwang@redhat.com>
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- 28 4月, 2009 2 次提交
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由 Yinghai Lu 提交于
according to Ingo, change set_affinity() in irq_chip should return int, because that way we can handle failure cases in a much cleaner way, in the genirq layer. v2: fix two typos [ Impact: extend API ] Signed-off-by: NYinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: linux-arch@vger.kernel.org LKML-Reference: <49F654E9.4070809@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Tim Abbott 提交于
The section .text.init.refok is deprecated and __REF (.ref.text) should be used in assembly files instead. This patch cleans up a few uses of .text.init.refok in the sparc architecture. Also fix a reference to .text.init in a comment that wasn't updated to .init.text. Signed-off-by: NTim Abbott <tabbott@mit.edu> Cc: David S. Miller <davem@davemloft.net> Acked-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 27 4月, 2009 1 次提交
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由 Tim Abbott 提交于
This has the consequence of changing the section name use for head code from ".text.head" to ".head.text". Since this commit changes all users in the architecture, this change should be harmless. Signed-off-by: NTim Abbott <tabbott@mit.edu> Cc: David S. Miller <davem@davemloft.net> Acked-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 22 4月, 2009 2 次提交
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由 David S. Miller 提交于
If there is a dummy "espdma" or "ledma" parent device above ESP scsi or LE ethernet device nodes, we have to match the bus as SBUS. Otherwise the address and size cell counts are wrong and we don't calculate the final physical device resource values correctly at all. Commit 5280267c ("sparc: Fix handling of LANCE and ESP parent nodes in of_device.c") was meant to fix this problem, but that only influences the inner loop of build_device_resources(). We need this logic to also kick in at the beginning of build_device_resources() as well, when we make the first attempt to determine the device's immediate parent bus type for 'reg' property element extraction. Based almost entirely upon a patch by Friedrich Oslage. Tested-by: NMeelis Roos <mroos@linux.ee> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Magnus Damm 提交于
Pass clocksource pointer to the read() callback for clocksources. This allows us to share the callback between multiple instances. [hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods] [akpm@linux-foundation.org: cleanup] Signed-off-by: NMagnus Damm <damm@igel.co.jp> Acked-by: NJohn Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NHugh Dickins <hugh@veritas.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 21 4月, 2009 1 次提交
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由 Oleg Drokin 提交于
This is a version incorporating Christoph's suggestion. Separate out common *fstatat functionality into a single function instead of duplicating it all over the code. Signed-off-by: NOleg Drokin <green@linuxhacker.ru> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 15 4月, 2009 2 次提交
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由 Wei Yongjun 提交于
Remove some pointless conditionals before kfree(). Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Interrupts must be disabled when taking the IPI lock. Caught by lockdep. Reported-by: NMeelis Roos <mroos@linux.ee> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 4月, 2009 3 次提交
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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