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* V4L/DVB (11607): soc-camera: add a free_bus method to struct soc_camera_linkGuennadi Liakhovetski2009-06-16
| | | | | | | | | | | | | | | Currently pcm990 camera bus-width management functions request a GPIO and never free it again. With this approach the GPIO extender driver cannot be unloaded once camera drivers have been loaded, also unloading theb i2c-pxa bus driver produces errors, because the GPIO extender driver cannot unregister properly. Another problem is, that if camera drivers are once loaded before the GPIO extender driver, the platform code marks the GPIO unavailable and only a reboot helps to recover. Adding an explicit free_bus method and using it in mt9m001 and mt9v022 drivers fixes these problems. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6Linus Torvalds2009-06-16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6: (30 commits) sparc64: Update defconfig. sparc: Wire up sys_rt_tgsigqueueinfo(). openprom: Squelch useless GCC warning. sparc: replace uses of CPU_MASK_ALL_PTR sparc64: Add proper dynamic ftrace support. sparc: Simplify code using is_power_of_2() routine. sparc: move of_device common code to of_device_common sparc: remove dma-mapping_{32|64}.h sparc: use dma_map_page instead of dma_map_single sparc: add sync_single_for_device and sync_sg_for_device to struct dma_ops sparc: move the duplication in dma-mapping_{32|64}.h to dma-mapping.h p9100: use standard fields for framebuffer physical address and length leo: use standard fields for framebuffer physical address and length cg6: use standard fields for framebuffer physical address and length cg3: use standard fields for framebuffer physical address and length cg14: use standard fields for framebuffer physical address and length bw2: use standard fields for framebuffer physical address and length sparc64: fix and optimize irq distribution sparc64: Use new dynamic per-cpu allocator. sparc64: Only allocate per-cpu areas for possible cpus. ...
| * sparc64: Update defconfig.David S. Miller2009-06-16
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Wire up sys_rt_tgsigqueueinfo().David S. Miller2009-06-16
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: replace uses of CPU_MASK_ALL_PTRStephen Rothwell2009-06-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Add proper dynamic ftrace support.David S. Miller2009-06-16
| | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Ingo Molnar <mingo@elte.hu>
| * sparc: Simplify code using is_power_of_2() routine.Robert P. J. Day2009-06-16
| | | | | | | | | | Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: move of_device common code to of_device_commonRobert Reif2009-06-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: remove dma-mapping_{32|64}.hFUJITA Tomonori2009-06-16
| | | | | | | | | | | | | | | | | | This modifies SPARC32 to use struct dma_map ops. It means that we can remove dma-mapping_{32|64}.h. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: use dma_map_page instead of dma_map_singleFUJITA Tomonori2009-06-16
| | | | | | | | | | | | | | | | | | | | | | | | 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: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: add sync_single_for_device and sync_sg_for_device to struct dma_opsFUJITA Tomonori2009-06-16
| | | | | | | | | | | | | | | | | | This adds sync_single_for_device() and sync_sg_for_device() to struct dma_ops in order to unify dma-mpping_{32|64}.h. dma-mpping_32.h needs them though dma-mpping_64.h doesn't. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: move the duplication in dma-mapping_{32|64}.h to dma-mapping.hFUJITA Tomonori2009-06-16
| | | | | | | | | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: fix and optimize irq distributionHong H. Pham2009-06-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Hong H. Pham <hong.pham@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Use new dynamic per-cpu allocator.David S. Miller2009-06-16
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Only allocate per-cpu areas for possible cpus.David S. Miller2009-06-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: David S. Miller <davem@davemloft.net>
| * sparc64: Get rid of real_setup_per_cpu_areas().David S. Miller2009-06-16
| | | | | | | | | | | | | | | | | | | | | | 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: David S. Miller <davem@davemloft.net>
| * sparc64: Defer cpu_data() setup until end of per-cpu data initialization.David S. Miller2009-06-16
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Make mdesc_fill_in_cpu_data take a cpumask_t pointer.David S. Miller2009-06-16
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Call OF and MD cpu scanning explicitly from paging_init()David S. Miller2009-06-16
| | | | | | | | | | | | | | 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: David S. Miller <davem@davemloft.net>
| * sparc64: Refactor MDESC cpu scanning code using an iterator.David S. Miller2009-06-16
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Refactor OBP cpu scanning code using an iterator.David S. Miller2009-06-16
| | | | | | | | | | | | With feedback from Sam Ravnborg. Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Use BUILD_BUG_ON() in trap_init().David S. Miller2009-06-16
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Store per-cpu offset in trap_block[]David S. Miller2009-06-16
| | | | | | | | | | | | | | Surprisingly this actually makes LOAD_PER_CPU_BASE() a little more efficient. Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Move trap_block[] definitions into a new header file.David S. Miller2009-06-16
| | | | | | | | | | | | | | | | Later we're going to want to get at these definitions from asm/percpu.h and that's not possible via cpudata.h because of the set of dependencies the non-trap_block[] stuff has. Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Reclaim trap_block[]->hdescDavid S. Miller2009-06-16
| | | | | | | | | | | | | | | | | | | | 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: David S. Miller <davem@davemloft.net>
* | Merge branch 'for-linus' of ↵Linus Torvalds2009-06-16
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (27 commits) Blackfin: hook up new rt_tgsigqueueinfo syscall Blackfin: improve CLKIN_HZ config default Blackfin: initial support for ftrace grapher Blackfin: initial support for ftrace Blackfin: enable support for LOCKDEP Blackfin: add preliminary support for STACKTRACE Blackfin: move custom sections into sections.h Blackfin: punt unused/wrong mutex-dec.h Blackfin: add support for irqflags Blackfin: add support for bzip2/lzma compressed kernel images Blackfin: convert Kconfig style to def_bool Blackfin: bf548-ezkit: update smsc911x resources Blackfin: update aedos-ipipe code to upstream 1.10-00 Blackfin: bf537-stamp: update ADP5520 resources Blackfin: bf518f-ezbrd: fix SPI CS for SPI flash Blackfin: define SPI IRQ in board resources Blackfin: do not configure the UART early if on wrong processor Blackfin: fix deadlock in SMP IPI handler Blackfin: fix flag storage for irq funcs Blackfin: push down exception oops checking ...
| * | Blackfin: hook up new rt_tgsigqueueinfo syscallMike Frysinger2009-06-13
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: improve CLKIN_HZ config defaultMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | | | | | | | Most boards use 25000000 as the default HZ, so rather than add a whole bunch more boards, make it the default for everyone. This also fixes randconfig builds as there was no default before. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: initial support for ftrace grapherMike Frysinger2009-06-13
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: initial support for ftraceMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | Just the basic ftrace support here -- mcount and the ftrace stub. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: enable support for LOCKDEPMike Frysinger2009-06-13
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: add preliminary support for STACKTRACEMike Frysinger2009-06-13
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: move custom sections into sections.hMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | | | | The Blackfin arch has a bunch of custom section markings for its on-chip regions, but they aren't declared in the right header. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: punt unused/wrong mutex-dec.hMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | | | | Looks like the mutex-dec.h header file was incorrectly copied into the Blackfin asm path. Nothing uses it, so punt it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: add support for irqflagsMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | | | | | | | This converts the irq handling in the Blackfin arch from the old irq.h / system.h method to the new irqflags.h. A stepping stone on the way to other tracing functionality. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: add support for bzip2/lzma compressed kernel imagesMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | | | | Since U-Boot can support these compression types, add appropriate targets to the Blackfin boot files. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: convert Kconfig style to def_boolMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | Makes the file easier to read when there isn't so much clutter. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: bf548-ezkit: update smsc911x resourcesMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | | | | The older smsc911x driver made platform data optional, but the newer one always requires it, so add proper settings to the BF548-EZKIT. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: update aedos-ipipe code to upstream 1.10-00Yi Li2009-06-13
| | | | | | | | | | | | | | | Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: bf537-stamp: update ADP5520 resourcesMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | | | | The ADP5520 hooks up to PF7 rather than PG0. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: bf518f-ezbrd: fix SPI CS for SPI flashGraf Yang2009-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | The SPI flash on the BF518F-EZBRD board is actually hooked up to CS2, not CS1, so make sure the resources are correct. URL: http://blackfin.uclinux.org/gf/tracker/5220 Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: define SPI IRQ in board resourcesYi Li2009-06-13
| | | | | | | | | | | | | | | | | | | | | | | | The Blackfin SPI driver can be driven by an IRQ now, so declare it in the board resources. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: do not configure the UART early if on wrong processorRobin Getz2009-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | Before we configure the early UART, check to make sure we are running on the expected processor - otherwise, we cause problems by configuring pins that don't exist (and causing an infinite loop of faults). Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: fix deadlock in SMP IPI handlerSonic Zhang2009-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a low priority interrupt (like ethernet) is triggered between 2 high priority IPI messages, a deadlock in disable_irq() is hit by the second IPI handler. This is because the second IPI message is queued within the first IPI handler, but the handler doesn't process all messages, and new ones are inserted rather than appended. So now we process all the pending messages, and append new ones to the pending list. URL: http://blackfin.uclinux.org/gf/tracker/5226 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: fix flag storage for irq funcsMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | | | | The IRQ functions take an "unsigned long" flags variable, not any other type, so fix the places where we use "int" or "long". Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: push down exception oops checkingMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than maintain a duplicate list of valid exceptions we can take in the kernel both in the first if() check and the switch() check, delay the oops check to after the switch(). All valid exceptions will have returned by this point leaving only the invalid ones. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: fix trap_c() exit pathsMike Frysinger2009-06-13
| | | | | | | | | | | | | | | | | | | | | | | | The trap_c() code pushes the hardware trace status onto the stack, but doesn't always restore it when returning from some trap code paths. So unify the exit code paths to all head to the end of the function. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: add blackfin_invalidate_entire_icache for SMP systemsSonic Zhang2009-06-13
| | | | | | | | | | | | | | | | | | | | | | | | The KGDB code uses this when switching processors to make sure the icache is in a valid state. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: include the cpu compiled version in /proc/cpuinfoRobin Getz2009-06-13
| | | | | | | | | | | | | | | | | | | | | | | | Since the compiled-for cpu revision can be significant, include it in the cpuinfo output along side the cpu revision we're currently running on. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Blackfin: add support for GENERIC_BUGMike Frysinger2009-06-13
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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