- 20 10月, 2014 1 次提交
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由 Wolfram Sang 提交于
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
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- 16 10月, 2014 2 次提交
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由 Vinod Koul 提交于
carma-fpga driver uses device control with custom FSLDMA_EXTERNAL_START command. Since we wnat to deprecate the device control, move this driver to use new fsl_dma_external_start() API Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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由 Vinod Koul 提交于
The drivers should use dmaengine_slave_config() and dmaengine_prep_dma_sg() API instead of accessing the device_control which will be deprecated soon Signed-off-by: NVinod Koul <vinod.koul@intel.com>
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- 09 10月, 2014 2 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 10 7月, 2014 1 次提交
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由 Fabian Frederick 提交于
replace IS_ERR/PTR_ERR Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NFabian Frederick <fabf@skynet.be> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 08 2月, 2014 1 次提交
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由 Paul Gortmaker 提交于
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 15 11月, 2013 1 次提交
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Remove no longer needed DMA unmap flags: - DMA_COMPL_SKIP_SRC_UNMAP - DMA_COMPL_SKIP_DEST_UNMAP - DMA_COMPL_SRC_UNMAP_SINGLE - DMA_COMPL_DEST_UNMAP_SINGLE Cc: Vinod Koul <vinod.koul@intel.com> Cc: Tomasz Figa <t.figa@samsung.com> Cc: Dave Jiang <dave.jiang@intel.com> Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NJon Mason <jon.mason@intel.com> Acked-by: NMark Brown <broonie@linaro.org> [djbw: clean up straggling skip unmap flags in ntb] Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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- 10 10月, 2013 1 次提交
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由 Rob Herring 提交于
Powerpc is a mess of implicit includes by prom.h. Add the necessary explicit includes to drivers in preparation of prom.h cleanup. Signed-off-by: NRob Herring <rob.herring@calxeda.com> Acked-by: NGrant Likely <grant.likely@linaro.org>
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- 07 6月, 2013 1 次提交
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由 Jingoo Han 提交于
The usage of strict_strtoul() is not preferred, because strict_strtoul() is obsolete. Thus, kstrtoul() should be used. Signed-off-by: NJingoo Han <jg1.han@samsung.com> Reviewed-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 30 5月, 2013 1 次提交
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由 Jingoo Han 提交于
Use the wrapper functions for getting and setting the driver data using platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev, so we can directly pass a struct platform_device. Signed-off-by: NJingoo Han <jg1.han@samsung.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 08 1月, 2013 2 次提交
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Just use dma_async_issue_pending() directly. Cc: Vinod Koul <vinod.koul@intel.com> Cc: Tomasz Figa <t.figa@samsung.com> Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NDan Williams <djbw@fb.com>
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DMA unmapping is handled by a driver so tell fsldma.c driver (which is the DMA engine driver used by carma-fpga) to skip unmapping destination and source buffers. Cc: Ira W. Snyder <iws@ovro.caltech.edu> Cc: Tomasz Figa <t.figa@samsung.com> Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NDan Williams <djbw@fb.com>
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- 09 10月, 2012 1 次提交
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由 Konstantin Khlebnikov 提交于
A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA, currently it lost original meaning but still has some effects: | effect | alternative flags -+------------------------+--------------------------------------------- 1| account as reserved_vm | VM_IO 2| skip in core dump | VM_IO, VM_DONTDUMP 3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP 4| do not mlock | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP This patch removes reserved_vm counter from mm_struct. Seems like nobody cares about it, it does not exported into userspace directly, it only reduces total_vm showed in proc. Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP. remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP. remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP. [akpm@linux-foundation.org: drivers/vfio/pci/vfio_pci.c fixup] Signed-off-by: NKonstantin Khlebnikov <khlebnikov@openvz.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Carsten Otte <cotte@de.ibm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Eric Paris <eparis@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Morris <james.l.morris@oracle.com> Cc: Jason Baron <jbaron@redhat.com> Cc: Kentaro Takeda <takedakn@nttdata.co.jp> Cc: Matt Helsley <matthltc@us.ibm.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Venkatesh Pallipadi <venki@google.com> Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 17 8月, 2012 1 次提交
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由 Qiang Liu 提交于
These drivers set the DMA_INTERRUPT capability bit when requesting a DMA controller channel. This was historical, and is no longer needed. Recent changes to the drivers/dma/fsldma.c driver have removed support for this flag. This makes the carma drivers unable to find a DMA channel with the required capabilities. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 27 2月, 2012 2 次提交
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由 Ira Snyder 提交于
When the system is under heavy load, we occasionally saw a problem where the system would get a legitimate interrupt when they should be disabled. This was caused by the data_dma_cb() DMA callback unconditionally re-enabling FPGA interrupts even when data dumping is disabled. When data dumping was re-enabled, the irq handler would fire while a DMA was in progress. The "BUG_ON(priv->inflight != NULL);" during the second invocation of the DMA callback caused the system to crash. To fix the issue, the priv->enabled boolean is moved under the protection of the priv->lock spinlock. The DMA callback checks the boolean to know whether to re-enable FPGA interrupts before it returns. Now that it is fixed, the driver keeps FPGA interrupts disabled when it expects that they are disabled, fixing the bug. Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Ira Snyder 提交于
Lockdep occasionally complains with the message: INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected This is caused by calling videobuf_dma_unmap() under spin_lock_irq(). To fix the warning, we drop the lock before unmapping and freeing the buffer. Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 25 1月, 2012 1 次提交
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由 Axel Lin 提交于
This patch converts the drivers in drivers/misc/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: NAxel Lin <axel.lin@gmail.com> Acked-by: NIra W. Snyder <iws@ovro.caltech.edu> Cc: Pavan Savoy <pavan_savoy@ti.com> Cc: Donggeun Kim <dg77.kim@samsung.com> Acked-By: NPratyush Anand <pratyush.anand@st.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NPratyush Anand <pratyush.anand@st.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 16 11月, 2011 1 次提交
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由 Al Viro 提交于
... by 6 months Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 31 10月, 2011 1 次提交
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由 Vinod Koul 提交于
fixup usage of dma direction by introducing dma_transfer_direction, this patch moves carma drivers to use new enum Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com> CC Ira W. Snyder <iws@ovro.caltech.edu>
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- 19 5月, 2011 2 次提交
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由 Ira Snyder 提交于
This adds support for programming the data processing FPGAs on the OVRO CARMA board. These FPGAs have a special programming sequence that requires that we program the Freescale DMA engine, which is only available inside the kernel. Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Ira Snyder 提交于
This driver allows userspace to access the data processing FPGAs on the OVRO CARMA board. It has two modes of operation: 1) random access This allows users to poke any DATA-FPGA registers by using mmap to map the address region directly into their memory map. 2) correlation dumping When correlating, the DATA-FPGA's have special requirements for getting the data out of their memory before the next correlation. This nominally happens at 64Hz (every 15.625ms). If the data is not dumped before the next correlation, data is lost. The data dumping driver handles buffering up to 1 second worth of correlation data from the FPGAs. This lowers the realtime scheduling requirements for the userspace process reading the device. Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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