)]}' { "log": [ { "commit": "8d8bb39b9eba32dd70e87fd5ad5c5dd4ba118e06", "tree": "64090a84f4c4466f9f30ff46c993e0cede379052", "parents": [ "c485b465a031b6f9b9a51300e0ee1f86efc6db87" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Fri Jul 25 19:44:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:03 2008 -0700" }, "message": "dma-mapping: add the device argument to dma_mapping_error()\n\nAdd per-device dma_mapping_ops support for CONFIG_X86_64 as POWER\narchitecture does:\n\nThis enables us to cleanly fix the Calgary IOMMU issue that some devices\nare not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423).\n\nI think that per-device dma_mapping_ops support would be also helpful for\nKVM people to support PCI passthrough but Andi thinks that this makes it\ndifficult to support the PCI passthrough (see the above thread). So I\nCC\u0027ed this to KVM camp. Comments are appreciated.\n\nA pointer to dma_mapping_ops to struct dev_archdata is added. If the\npointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it\u0027s\nNULL, the system-wide dma_ops pointer is used as before.\n\nIf it\u0027s useful for KVM people, I plan to implement a mechanism to register\na hook called when a new pci (or dma capable) device is created (it works\nwith hot plugging). It enables IOMMUs to set up an appropriate\ndma_mapping_ops per device.\n\nThe major obstacle is that dma_mapping_error doesn\u0027t take a pointer to the\ndevice unlike other DMA operations. So x86 can\u0027t have dma_mapping_ops per\ndevice. Note all the POWER IOMMUs use the same dma_mapping_error function\nso this is not a problem for POWER but x86 IOMMUs use different\ndma_mapping_error functions.\n\nThe first patch adds the device argument to dma_mapping_error. The patch\nis trivial but large since it touches lots of drivers and dma-mapping.h in\nall the architecture.\n\nThis patch:\n\ndma_mapping_error() doesn\u0027t take a pointer to the device unlike other DMA\noperations. So we can\u0027t have dma_mapping_ops per device.\n\nNote that POWER already has dma_mapping_ops per device but all the POWER\nIOMMUs use the same dma_mapping_error function. x86 IOMMUs use device\nargument.\n\n[akpm@linux-foundation.org: fix sge]\n[akpm@linux-foundation.org: fix svc_rdma]\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: fix bnx2x]\n[akpm@linux-foundation.org: fix s2io]\n[akpm@linux-foundation.org: fix pasemi_mac]\n[akpm@linux-foundation.org: fix sdhci]\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: fix sparc]\n[akpm@linux-foundation.org: fix ibmvscsi]\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: Muli Ben-Yehuda \u003cmuli@il.ibm.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Avi Kivity \u003cavi@qumranet.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1b0fac45878bb88759eec347c273285195649ff7", "tree": "a9871a47ef98c90bac3f65a7f9309e87420c694c", "parents": [ "9e7bf24b1b979db256ddc84d0d4ac6040d706da6" ], "author": { "name": "Dan Williams", "email": "dan.j.williams@intel.com", "time": "Sun Jul 15 23:40:26 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Jul 16 09:05:45 2007 -0700" }, "message": "dma-mapping: prevent dma dependent code from linking on !HAS_DMA archs\n\nContinuing the work started in 411f0f3edc141a582190d3605cadd1d993abb6df ...\n\nThis enables code with a dma path, that compiles away, to build without\nrequiring additional code factoring. It also prevents code that calls\ndma_alloc_coherent and dma_free_coherent from linking whereas previously\nthe code would hit a BUG() at run time. Finally, it allows archs that set\n!HAS_DMA to delete their asm/dma-mapping.h file.\n\nCc: Cornelia Huck \u003ccornelia.huck@de.ibm.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: John W. Linville \u003clinville@tuxdriver.com\u003e\nCc: Kyle McMartin \u003ckyle@parisc-linux.org\u003e\nCc: James Bottomley \u003cJames.Bottomley@SteelEye.com\u003e\nCc: Tejun Heo \u003chtejun@gmail.com\u003e\nCc: Jeff Garzik \u003cjeff@garzik.org\u003e\nCc: \u003cgeert@linux-m68k.org\u003e\nCc: \u003czippel@linux-m68k.org\u003e\nCc: \u003cspyro@f2s.com\u003e\nCc: \u003cysato@users.sourceforge.jp\u003e\nSigned-off-by: Dan Williams \u003cdan.j.williams@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": "509cb37e173d4e39cec47238397e91b718730794", "tree": "c841817718d22ec410162c3c473fac42458886ad", "parents": [ "9ede209e83693cf3f6b64f61ab4b65f2f809cb50" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Mon Feb 12 00:08:03 2007 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 20:06:39 2007 -0800" }, "message": "[PATCH] one more iomap s390 build fix\n\nCommit 9ac7849e35f705830f7b016ff272b0ff1f7ff759 causes this on S390:\n\n drivers/built-in.o: In function `dmam_noncoherent_release\u0027:\n dma-mapping.c:(.text+0x1515c): undefined reference to `dma_free_noncoherent\u0027\n drivers/built-in.o: In function `dmam_free_noncoherent\u0027:\n undefined reference to `dma_free_noncoherent\u0027\n drivers/built-in.o: In function `dmam_alloc_noncoherent\u0027:\n undefined reference to `dma_alloc_noncoherent\u0027\n make: *** [.tmp_vmlinux1] Error 1\n\nCc: Tejun Heo \u003chtejun@gmail.com\u003e\nAcked-by: Jeff Garzik \u003cjeff@garzik.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "970a9e73f9036ef89d46b8240f99463f6d244c1d", "tree": "0a55b5f311024661468a96fb01cb1063816f8d95", "parents": [ "5fb5cbed6e5ba4cbaf7284a23d42eb878bb7da24" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Oct 21 03:21:53 2005 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Oct 28 08:16:49 2005 -0700" }, "message": "[PATCH] gfp_t: dma-mapping (simple cases)\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d", "parents": [], "author": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n" } ] }