)]}' { "log": [ { "commit": "0036731c88fdb5bf4f04a796a30b5e445fc57f54", "tree": "66982e4a9fdb92fedadca35c0ccaa0b9a75e9d2e", "parents": [ "d909b347591a23c5a2c324fbccd4c9c966f31c67" ], "author": { "name": "Dan Williams", "email": "dan.j.williams@intel.com", "time": "Sat Feb 02 19:49:57 2008 -0700" }, "committer": { "name": "Dan Williams", "email": "dan.j.williams@intel.com", "time": "Wed Feb 06 10:12:17 2008 -0700" }, "message": "async_tx: kill tx_set_src and tx_set_dest methods\n\nThe tx_set_src and tx_set_dest methods were originally implemented to allow\nan array of addresses to be passed down from async_xor to the dmaengine\ndriver while minimizing stack overhead. Removing these methods allows\ndrivers to have all transaction parameters available at \u0027prep\u0027 time, saves\ntwo function pointers in struct dma_async_tx_descriptor, and reduces the\nnumber of indirect branches..\n\nA consequence of moving this data to the \u0027prep\u0027 routine is that\nmulti-source routines like async_xor need temporary storage to convert an\narray of linear addresses into an array of dma addresses. In order to keep\nthe same stack footprint of the previous implementation the input array is\nreused as storage for the dma addresses. This requires that\nsizeof(dma_addr_t) be less than or equal to sizeof(void *). As a\nconsequence CONFIG_DMADEVICES now depends on !CONFIG_HIGHMEM64G. It also\nrequires that drivers be able to make descriptor resources available when\nthe \u0027prep\u0027 routine is polled.\n\nSigned-off-by: Dan Williams \u003cdan.j.williams@intel.com\u003e\nAcked-by: Shannon Nelson \u003cshannon.nelson@intel.com\u003e\n" }, { "commit": "891f78ea833edd4a1e524e15bfe297a7a84d81a0", "tree": "533f12df743c4adc6d2b40d048ffb7d16c93e591", "parents": [ "62ca8792560e5bd7dc09f54ed3523a7864f416c7" ], "author": { "name": "Tony Jones", "email": "tonyj@suse.de", "time": "Tue Sep 25 02:03:03 2007 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:05 2008 -0800" }, "message": "DMA: Convert from class_device to device for DMA engine\n\nSigned-off-by: Tony Jones \u003ctonyj@suse.de\u003e\nSigned-off-by: Dan Williams \u003cdan.j.williams@intel.com\u003e\nCc: Shannon Nelson \u003cshannon.nelson@intel.com\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "348badf1e825323c419dd118f65783db0f7d2ec8", "tree": "126cddb26c14233eaff8ddd6a240fe4ac69204ee", "parents": [ "90d8dabf74179e6615bd4688a118e12ec29ab7aa" ], "author": { "name": "Haavard Skinnemoen", "email": "hskinnemoen@atmel.com", "time": "Wed Nov 14 16:59:27 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Nov 14 18:45:39 2007 -0800" }, "message": "dmaengine: fix broken device refcounting\n\nWhen a DMA device is unregistered, its reference count is decremented twice\nfor each channel: Once dma_class_dev_release() and once in\ndma_chan_cleanup(). This may result in the DMA device driver\u0027s remove()\nfunction completing before all channels have been cleaned up, causing lots\nof use-after-free fun.\n\nFix it by incrementing the device\u0027s reference count twice for each\nchannel during registration.\n\n[dan.j.williams@intel.com: kill unnecessary client refcounting]\nSigned-off-by: Haavard Skinnemoen \u003chskinnemoen@atmel.com\u003e\nSigned-off-by: Dan Williams \u003cdan.j.williams@intel.com\u003e\nSigned-off-by: Shannon Nelson \u003cshannon.nelson@intel.com\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d379b01e9087a582d58f4b678208a4f8d8376fe7", "tree": "155920bca93c18afba66b9d5acfecd359d5bec65", "parents": [ "7405f74badf46b5d023c5d2b670b4471525f6c91" ], "author": { "name": "Dan Williams", "email": "dan.j.williams@intel.com", "time": "Mon Jul 09 11:56:42 2007 -0700" }, "committer": { "name": "Dan Williams", "email": "dan.j.williams@intel.com", "time": "Fri Jul 13 08:06:13 2007 -0700" }, "message": "dmaengine: make clients responsible for managing channels\n\nThe current implementation assumes that a channel will only be used by one\nclient at a time. In order to enable channel sharing the dmaengine core is\nchanged to a model where clients subscribe to channel-available-events.\nInstead of tracking how many channels a client wants and how many it has\nreceived the core just broadcasts the available channels and lets the\nclients optionally take a reference. The core learns about the clients\u0027\nneeds at dma_event_callback time.\n\nIn support of multiple operation types, clients can specify a capability\nmask to only be notified of channels that satisfy a certain set of\ncapabilities.\n\nChangelog:\n* removed DMA_TX_ARRAY_INIT, no longer needed\n* dma_client_chan_free -\u003e dma_chan_release: switch to global reference\n counting only at device unregistration time, before it was also happening\n at client unregistration time\n* clients now return dma_state_client to dmaengine (ack, dup, nak)\n* checkpatch.pl fixes\n* fixup merge with git-ioat\n\nCc: Chris Leech \u003cchristopher.leech@intel.com\u003e\nSigned-off-by: Shannon Nelson \u003cshannon.nelson@intel.com\u003e\nSigned-off-by: Dan Williams \u003cdan.j.williams@intel.com\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "7405f74badf46b5d023c5d2b670b4471525f6c91", "tree": "20dd20571637dba1c2b04c7b13ac208c33b5706b", "parents": [ "428ed6024fa74a271142f3257966e9b5e1cb37a1" ], "author": { "name": "Dan Williams", "email": "dan.j.williams@intel.com", "time": "Tue Jan 02 11:10:43 2007 -0700" }, "committer": { "name": "Dan Williams", "email": "dan.j.williams@intel.com", "time": "Fri Jul 13 08:06:11 2007 -0700" }, "message": "dmaengine: refactor dmaengine around dma_async_tx_descriptor\n\nThe current dmaengine interface defines mutliple routines per operation,\ni.e. dma_async_memcpy_buf_to_buf, dma_async_memcpy_buf_to_page etc. Adding\nmore operation types (xor, crc, etc) to this model would result in an\nunmanageable number of method permutations.\n\n\tAre we really going to add a set of hooks for each DMA engine\n\twhizbang feature?\n\t\t- Jeff Garzik\n\nThe descriptor creation process is refactored using the new common\ndma_async_tx_descriptor structure. Instead of per driver\ndo_\u003coperation\u003e_\u003cdest\u003e_to_\u003csrc\u003e methods, drivers integrate\ndma_async_tx_descriptor into their private software descriptor and then\ndefine a \u0027prep\u0027 routine per operation. The prep routine allocates a\ndescriptor and ensures that the tx_set_src, tx_set_dest, tx_submit routines\nare valid. Descriptor creation and submission becomes:\n\nstruct dma_device *dev;\nstruct dma_chan *chan;\nstruct dma_async_tx_descriptor *tx;\n\ntx \u003d dev-\u003edevice_prep_dma_\u003coperation\u003e(chan, len, int_flag)\ntx-\u003etx_set_src(dma_addr_t, tx, index /* for multi-source ops */)\ntx-\u003etx_set_dest(dma_addr_t, tx, index)\ntx-\u003etx_submit(tx)\n\nIn addition to the refactoring, dma_async_tx_descriptor also lays the\ngroundwork for definining cross-channel-operation dependencies, and a\ncallback facility for asynchronous notification of operation completion.\n\nChangelog:\n* drop dma mapping methods, suggested by Chris Leech\n* fix ioat_dma_dependency_added, also caught by Andrew Morton\n* fix dma_sync_wait, change from Andrew Morton\n* uninline large functions, change from Andrew Morton\n* add tx-\u003ecallback \u003d NULL to dmaengine calls to interoperate with async_tx\n calls\n* hookup ioat_tx_submit\n* convert channel capabilities to a \u0027cpumask_t like\u0027 bitmap\n* removed DMA_TX_ARRAY_INIT, no longer needed\n* checkpatch.pl fixes\n* make set_src, set_dest, and tx_submit descriptor specific methods\n* fixup git-ioat merge\n* move group_list and phys to dma_async_tx_descriptor\n\nCc: Jeff Garzik \u003cjeff@garzik.org\u003e\nCc: Chris Leech \u003cchristopher.leech@intel.com\u003e\nSigned-off-by: Shannon Nelson \u003cshannon.nelson@intel.com\u003e\nSigned-off-by: Dan Williams \u003cdan.j.williams@intel.com\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "ff487fb773749124550a5ad2b7fbfe0376af6f0d", "tree": "4162ef179d0496b8c5fa066a51cf97606e22c1be", "parents": [ "000725d56a196e72dc22328324c5ec5506265736" ], "author": { "name": "Jeff Garzik", "email": "jeff@garzik.org", "time": "Thu Mar 08 09:57:34 2007 -0800" }, "committer": { "name": "Dan Williams", "email": "dan.j.williams@intel.com", "time": "Wed Jul 11 15:39:03 2007 -0700" }, "message": "drivers/dma: handle sysfs errors\n\nFrom: Jeff Garzik \u003cjeff@garzik.org\u003e\n\nSigned-off-by: Jeff Garzik \u003cjeff@garzik.org\u003e\nSigned-off-by: Chris Leech \u003cchristopher.leech@intel.com\u003e\n" }, { "commit": "765e3d8a71bbc1f3400667d5cfcfd7b03382d587", "tree": "0cf7dd6f707b10510d0c7343b5d4c198f093f725", "parents": [ "bed31ed9e1cd71d98ff0bc9212100adee523a10a" ], "author": { "name": "David Brownell", "email": "david-b@pacbell.net", "time": "Fri Mar 16 13:38:05 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Mar 16 19:25:03 2007 -0700" }, "message": "[PATCH] rm pointless dmaengine exports\n\nThis removes several pointless exports from drivers/dma/dmaengine.c; the\ndma_async_memcpy_*() functions are inlined by \u003clinux/dmaengine.h\u003e so those\nexports are inappropriate.\n\nIt also moves the existing EXPORT_SYMBOL declarations next to their functions,\nso it\u0027s now trivial to confirm one-to-one correspondence between exports and\nnonstatic symbols.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Dan Williams \u003cdan.j.williams@intel.com\u003e\nAcked-by: Chris Leech \u003cchristopher.leech@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6508871eddbbd3e62799f3b6182a6a4fd3ef31d5", "tree": "f8d5275b81e827326d8638b0286abd6bf19cd95c", "parents": [ "fe4ada2d6f0b746246e9b5bf0f4f2e4d3a07d26e" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Mon Jul 03 19:45:31 2006 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Mon Jul 03 19:45:31 2006 -0700" }, "message": "[IOAT]: fix kernel-doc in source files\n\nFix kernel-doc warnings in drivers/dma/:\n- use correct function \u0026 parameter names\n- add descriptions where omitted\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "17f3ae08b6e7fd778371f2cafbd1c988a67ee343", "tree": "9e33f603469628d9bbe679bede945d61e7417dbf", "parents": [ "1a2449a87bb7606113b1aa1a9d3c3e78ef189a1c" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Thu May 25 13:26:53 2006 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Sat Jun 17 21:25:58 2006 -0700" }, "message": "[I/OAT]: Do not use for_each_cpu().\n\nfor_each_cpu() is going away (and is gone in -mm).\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Chris Leech \u003cchristopher.leech@intel.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "c13c8260da3155f2cefb63b0d1b7dcdcb405c644", "tree": "ecfe02fa44a423a948f5fb5ad76497da2bb7a402", "parents": [ "427abfa28afedffadfca9dd8b067eb6d36bac53f" ], "author": { "name": "Chris Leech", "email": "christopher.leech@intel.com", "time": "Tue May 23 17:18:44 2006 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Sat Jun 17 21:18:43 2006 -0700" }, "message": "[I/OAT]: DMA memcpy subsystem\n\nProvides an API for offloading memory copies to DMA devices\n\nSigned-off-by: Chris Leech \u003cchristopher.leech@intel.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" } ] }