- 22 5月, 2012 3 次提交
-
-
由 Al Viro 提交于
guts of saved_sigmask-based sigsuspend/rt_sigsuspend. Takes kernel sigset_t *. Open-coded instances replaced with calling it. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
由 Thomas Gleixner 提交于
Sigh, I missed to check which architecture Kconfig files actually include the core Kconfig file. There are a few which did not. So we broke them. Instead of adding the includes to those, we are better off to move the include to init/Kconfig like we did already with irqs and others. This does not change anything for the architectures using the old style periodic timer mode. It just solves the build wreckage there. For those architectures which use the clock events infrastructure it moves the include of the core Kconfig file to "General setup" which is a way more logical place than having it at random locations specified by the architecture specific Kconfigs. Reported-by: NIngo Molnar <mingo@kernel.org> Cc: Anna-Maria Gleixner <anna-maria@glx-um.de> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
-
由 Sam Ravnborg 提交于
There is no point having the NET dependency on the select target, as it forces all users to depend on NET to tell they support BPF_JIT. Move the config option to the bottom of the file - this could be a nice place also for future "selectable" config symbols. Fix up all users to drop the dependency on NET now that it is not required to supress warnings for non-NET builds. Reported-by: NLinus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Acked-by: NDavid Miller <davem@davemloft.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 21 5月, 2012 14 次提交
-
-
由 Vitaly Andrianov 提交于
The dma_contiguous_remap() function clears existing section maps using the wrong size (PGDIR_SIZE instead of PMD_SIZE). This is a bug which does not affect non-LPAE systems, where PGDIR_SIZE and PMD_SIZE are the same. On LPAE systems, however, this bug causes the kernel to hang at this point. This fix has been tested on both LPAE and non-LPAE kernel builds. Signed-off-by: NVitaly Andrianov <vitalya@ti.com> Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
-
由 Marek Szyprowski 提交于
This patch adds support for CMA to dma-mapping subsystem for ARM architecture. By default a global CMA area is used, but specific devices are allowed to have their private memory areas if required (they can be created with dma_declare_contiguous() function during board initialisation). Contiguous memory areas reserved for DMA are remapped with 2-level page tables on boot. Once a buffer is requested, a low memory kernel mapping is updated to to match requested memory access type. GFP_ATOMIC allocations are performed from special pool which is created early during boot. This way remapping page attributes is not needed on allocation time. CMA has been enabled unconditionally for ARMv6+ systems. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> CC: Michal Nazarewicz <mina86@mina86.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Tested-by: NRob Clark <rob.clark@linaro.org> Tested-by: NOhad Ben-Cohen <ohad@wizery.com> Tested-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org> Tested-by: NRobert Nelson <robertcnelson@gmail.com> Tested-by: NBarry Song <Baohua.Song@csr.com>
-
由 Marek Szyprowski 提交于
This patch add a complete implementation of DMA-mapping API for devices which have IOMMU support. This implementation tries to optimize dma address space usage by remapping all possible physical memory chunks into a single dma address space chunk. DMA address space is managed on top of the bitmap stored in the dma_iommu_mapping structure stored in device->archdata. Platform setup code has to initialize parameters of the dma address space (base address, size, allocation precision order) with arm_iommu_create_mapping() function. To reduce the size of the bitmap, all allocations are aligned to the specified order of base 4 KiB pages. dma_alloc_* functions allocate physical memory in chunks, each with alloc_pages() function to avoid failing if the physical memory gets fragmented. In worst case the allocated buffer is composed of 4 KiB page chunks. dma_map_sg() function minimizes the total number of dma address space chunks by merging of physical memory chunks into one larger dma address space chunk. If requested chunk (scatter list entry) boundaries match physical page boundaries, most calls to dma_map_sg() requests will result in creating only one chunk in dma address space. dma_map_page() simply creates a mapping for the given page(s) in the dma address space. All dma functions also perform required cache operation like their counterparts from the arm linear physical memory mapping version. This patch contains code and fixes kindly provided by: - Krishna Reddy <vdumpa@nvidia.com>, - Andrzej Pietrasiewicz <andrzej.p@samsung.com>, - Hiroshi DOYU <hdoyu@nvidia.com> Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Reviewed-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> Tested-By: NSubash Patel <subash.ramaswamy@linaro.org>
-
由 Marek Szyprowski 提交于
This patch converts dma_alloc/free/mmap_{coherent,writecombine} functions to use generic alloc/free/mmap methods from dma_map_ops structure. A new DMA_ATTR_WRITE_COMBINE DMA attribute have been introduced to implement writecombine methods. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Tested-By: NSubash Patel <subash.ramaswamy@linaro.org>
-
由 Marek Szyprowski 提交于
This patch just performs a global cleanup in DMA mapping implementation for ARM architecture. Some of the tiny helper functions have been moved to the caller code, some have been merged together. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Tested-By: NSubash Patel <subash.ramaswamy@linaro.org>
-
由 Marek Szyprowski 提交于
This patch removes dma bounce hooks from the common dma mapping implementation on ARM architecture and creates a separate set of dma_map_ops for dma bounce devices. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Tested-By: NSubash Patel <subash.ramaswamy@linaro.org>
-
由 Marek Szyprowski 提交于
This patch converts all dma_sg methods to be generic (independent of the current DMA mapping implementation for ARM architecture). All dma sg operations are now implemented on top of respective dma_map_page/dma_sync_single_for* operations from dma_map_ops structure. Before this patch there were custom methods for all scatter/gather related operations. They iterated over the whole scatter list and called cache related operations directly (which in turn checked if we use dma bounce code or not and called respective version). This patch changes them not to use such shortcut. Instead it provides similar loop over scatter list and calls methods from the device's dma_map_ops structure. This enables us to use device dependent implementations of cache related operations (direct linear or dma bounce) depending on the provided dma_map_ops structure. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Tested-By: NSubash Patel <subash.ramaswamy@linaro.org>
-
由 Marek Szyprowski 提交于
This patch modifies dma-mapping implementation on ARM architecture to use common dma_map_ops structure and asm-generic/dma-mapping-common.h helpers. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Tested-By: NSubash Patel <subash.ramaswamy@linaro.org>
-
由 Marek Szyprowski 提交于
This patch removes the need for the offset parameter in dma bounce functions. This is required to let dma-mapping framework on ARM architecture to use common, generic dma_map_ops based dma-mapping helpers. Background and more detailed explaination: dma_*_range_* functions are available from the early days of the dma mapping api. They are the correct way of doing a partial syncs on the buffer (usually used by the network device drivers). This patch changes only the internal implementation of the dma bounce functions to let them tunnel through dma_map_ops structure. The driver api stays unchanged, so driver are obliged to call dma_*_range_* functions to keep code clean and easy to understand. The only drawback from this patch is reduced detection of the dma api abuse. Let us consider the following code: dma_addr = dma_map_single(dev, ptr, 64, DMA_TO_DEVICE); dma_sync_single_range_for_cpu(dev, dma_addr+16, 0, 32, DMA_TO_DEVICE); Without the patch such code fails, because dma bounce code is unable to find the bounce buffer for the given dma_address. After the patch the above sync call will be equivalent to: dma_sync_single_range_for_cpu(dev, dma_addr, 16, 32, DMA_TO_DEVICE); which succeeds. I don't consider this as a real problem, because DMA API abuse should be caught by debug_dma_* function family. This patch lets us to simplify the internal low-level implementation without chaning the driver visible API. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Tested-By: NSubash Patel <subash.ramaswamy@linaro.org>
-
由 Marek Szyprowski 提交于
Replace all uses of ~0 with DMA_ERROR_CODE, what should make the code easier to read. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Tested-By: NSubash Patel <subash.ramaswamy@linaro.org>
-
由 Marek Szyprowski 提交于
Replace all calls to printk with pr_* functions family. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Tested-By: NSubash Patel <subash.ramaswamy@linaro.org>
-
由 Marek Szyprowski 提交于
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
-
由 Thomas Gleixner 提交于
HARDIRQS_SW_RESEND and GENERIC_IRQ_PROBE are already defined as config switches in the core Kconfig file. Select them instead of defining them in ARM. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
-
由 Anna-Maria Gleixner 提交于
Signed-off-by: NAnna-Maria Gleixner <anna-maria@glx-um.de> Cc: Russell King <linux@arm.linux.org.uk> Link: http://lkml.kernel.org/r/20120518163104.760560327@glx-um.deSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
-
- 19 5月, 2012 2 次提交
-
-
由 Roland Stigge 提交于
This patch adds device tree support for gpio-lpc32xx.c. To register the various GPIO banks as (struct) gpio_chips via the same DT gpio-controller, we utilize the adjusted of_xlate API to manipulate the actually used struct gpio_chip. Signed-off-by: NRoland Stigge <stigge@antcom.de> Reviewed-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
-
由 Grant Likely 提交于
This patch changes the of_xlate API to make it possible for multiple gpio_chips to refer to the same device tree node. This is useful for banked GPIO controllers that use multiple gpio_chips for a single device. With this change the core code will try calling of_xlate on each gpio_chip that references the device_node and will return the gpio number for the first one to return 'true'. Tested-by: NRoland Stigge <stigge@antcom.de> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
-
- 18 5月, 2012 11 次提交
-
-
由 Philippe Rétornaz 提交于
Signed-off-by: NPhilippe Rétornaz <philippe.retornaz@epfl.ch> Acked-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
-
由 Philippe Rétornaz 提交于
Signed-off-by: NPhilippe Rétornaz <philippe.retornaz@epfl.ch> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
-
由 Nicolas Ferre 提交于
Now that the bulk of at91sam9g20-related nodes are located in at91sam9260.dtsi, we have to re-create the path to this ADC node for SoC specific parts. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
-
由 Paul Gortmaker 提交于
It isn't clear to me why this ever existed, as I've never heard of an ARM board with an MCA bus. Regardless, the MCA bus support is going away, so remove the ability to select it from ARM. Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
-
由 Magnus Damm 提交于
Use DT_MACHINE_START() on the emev2 based KZM9D board. Also include a tiny DTS file to describe the board and update the Kconfig dependencies to select CONFIG_USE_OF. Update the SMP glue code to use OF for matching. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
-
由 Magnus Damm 提交于
This is EMEV2 DT support V3. The support is limited to whatever devices that are complied in the kernel. At this point we have UARTs handled by "em-uart" and a timer handled by "em-sti". Clocks and SMP are not supported. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
-
由 Magnus Damm 提交于
Tie in the on-board Ethernet controller on KZM9D and make use of the GPIO controller for external IRQ pin support. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
-
由 Magnus Damm 提交于
Tie in the Emma Mobile GPIO driver "em-gio" to support the GPIOs on Emma Mobile EV2. A static IRQ range is used to allow boards to hook up their platform devices to the GPIOs. DT support is still on the TODO for the GPIO driver, so only platform device support is included here. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
-
由 Magnus Damm 提交于
This is V3 of Emma Mobile EV2 SMP support. At this point only the most basic form of SMP operation is supported. TWD and CPU Hotplug support is excluded. Tied to both the Emma Mobile EV2 and the KZM9D board due to the need to switch on board in platsmp.c and the newly introduced need for static mappings. The static mappings are needed to allow hardware acces early during boot when SMP is initialized. This early requirement forces us to also map in the SMU registers. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
-
由 Magnus Damm 提交于
V3 of basic KZM9D board support. At this point a quite thin layer that makes use of the Emma Mobile EV2 SoC code. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
-
由 Magnus Damm 提交于
This is V3 of the Emma Mobile EV2 SoC support. Included here is support for serial and timer devices which is just about enough to boot a kernel. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
-
- 17 5月, 2012 6 次提交
-
-
由 Will Deacon 提交于
Commit ff9a184c ("ARM: 7400/1: vfp: clear fpscr length and stride bits on entry to sig handler") flushes the VFP state prior to entering a signal handler so that a VFP operation inside the handler will trap and force a restore of ABI-compliant registers. Reflushing and disabling VFP on the sigreturn path is predicated on the saved thread state indicating that VFP was used by the handler -- however for SMP platforms this is only set on context-switch, making the check unreliable and causing VFP register corruption in userspace since the register values are not necessarily those restored from the sigframe. This patch unconditionally flushes the VFP state after a signal handler. Since we already perform the flush before the handler and the flushing itself happens lazily, the redundant flush when VFP is not used by the handler is essentially a nop. Reported-by: NJon Medhurst <tixy@linaro.org> Signed-off-by: NJon Medhurst <tixy@linaro.org> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
由 Vitaly Andrianov 提交于
A zero value for prot_sect in the memory types table implies that section mappings should never be created for the memory type in question. This is checked for in alloc_init_section(). With LPAE, we set a bit to mask access flag faults for kernel mappings. This breaks the aforementioned (!prot_sect) check in alloc_init_section(). This patch fixes this bug by first checking for a non-zero prot_sect before setting the PMD_SECT_AF flag. Signed-off-by: NVitaly Andrianov <vitalya@ti.com> Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
由 Barry Song 提交于
the old codes will cause 3.4 kernel warning as irq domain size is wrong: ------------[ cut here ]------------ WARNING: at kernel/irq/irqdomain.c:74 irq_domain_legacy_revmap+0x24/0x48() Modules linked in: [<c0013f50>] (unwind_backtrace+0x0/0xf8) from [<c001e7d8>] (warn_slowpath_common+0x54/0x64) [<c001e7d8>] (warn_slowpath_common+0x54/0x64) from [<c001e804>] (warn_slowpath_null+0x1c/0x24) [<c001e804>] (warn_slowpath_null+0x1c/0x24) from [<c005c3c4>] (irq_domain_legacy_revmap+0x24/0x48) [<c005c3c4>] (irq_domain_legacy_revmap+0x24/0x48) from [<c005c704>] (irq_create_mapping+0x20/0x120) [<c005c704>] (irq_create_mapping+0x20/0x120) from [<c005c880>] (irq_create_of_mapping+0x7c/0xf0) [<c005c880>] (irq_create_of_mapping+0x7c/0xf0) from [<c01a6c48>] (irq_of_parse_and_map+0x2c/0x34) [<c01a6c48>] (irq_of_parse_and_map+0x2c/0x34) from [<c01a6c68>] (of_irq_to_resource+0x18/0x74) [<c01a6c68>] (of_irq_to_resource+0x18/0x74) from [<c01a6ce8>] (of_irq_count+0x24/0x34) [<c01a6ce8>] (of_irq_count+0x24/0x34) from [<c01a7220>] (of_device_alloc+0x58/0x158) [<c01a7220>] (of_device_alloc+0x58/0x158) from [<c01a735c>] (of_platform_device_create_pdata+0x3c/0x80) [<c01a735c>] (of_platform_device_create_pdata+0x3c/0x80) from [<c01a7468>] (of_platform_bus_create+0xc8/0x190) [<c01a7468>] (of_platform_bus_create+0xc8/0x190) from [<c01a74cc>] (of_platform_bus_create+0x12c/0x190) ---[ end trace 1b75b31a2719ed32 ]--- Signed-off-by: NBarry Song <Baohua.Song@csr.com> Signed-off-by: NOlof Johansson <olof@lixom.net>
-
由 Kuninori Morimoto 提交于
Current IRQ16-IRQ31 irq number are located around 800 from 1ee8299a (ARM: mach-shmobile: Use 0x3400 as INTCS vector offset) But, the PINT0/1 IRQ number are also located around 800 from 0df1a838 (ARM: mach-shmobile: sh73a0 PINT IRQ base fix) This patch relocates PINT0/1 IRQ number to around 700 where is not used, and adds current IRQ location table in comment area. Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
-
由 Suresh Siddha 提交于
Historical prepare_to_copy() is mostly a no-op, duplicated for majority of the architectures and the rest following the x86 model of flushing the extended register state like fpu there. Remove it and use the arch_dup_task_struct() instead. Suggested-by: NOleg Nesterov <oleg@redhat.com> Suggested-by: NLinus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NSuresh Siddha <suresh.b.siddha@intel.com> Link: http://lkml.kernel.org/r/1336692811-30576-1-git-send-email-suresh.b.siddha@intel.comAcked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Chris Zankel <chris@zankel.net> Cc: Richard Henderson <rth@twiddle.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
-
由 Arnd Bergmann 提交于
I got build errors with the new version now because machine_is_kzm9g is no longer defined: arch/arm/mach-shmobile/platsmp.c: In function 'shmobile_smp_get_core_count': arch/arm/mach-shmobile/platsmp.c:29:2: error: implicit declaration of function 'of_machine_is_compatible' Replace the missing function with a call to of_machine_is_compatible. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Acked-by: N"Rafael J. Wysocki" <rjw@sisk.pl> Acked-by: NMagnus Damm <magnus.damm@gmail.com>
-
- 16 5月, 2012 4 次提交
-
-
由 Russell King 提交于
No one uses the per-hw list of buses, so get rid of this. Instead, build the list locally. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
由 Russell King 提交于
Use sys->private_data to store the PCIe port data structure. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
由 Russell King 提交于
Cc: <stable@vger.kernel.org> Reported-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
由 Lukasz Majewski 提交于
This patch adds platform data for using S3C-HSOTG driver at Universal_C210 target. Signed-off-by: NLukasz Majewski <l.majewski@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
-