)]}' { "log": [ { "commit": "5d2efba64b231a1733c4048d1708d77e07f26426", "tree": "2893dd45b9c26cef6cddb5fef0c6f820c5eb534e", "parents": [ "dd6c89f686bdb2a5de72fab636fc839e5a0add6d" ], "author": { "name": "Linas Vepstas", "email": "linas@austin.ibm.com", "time": "Mon Oct 30 16:15:59 2006 +1100" }, "committer": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Wed Nov 01 14:52:48 2006 +1100" }, "message": "[POWERPC] Use 4kB iommu pages even on 64kB-page systems\n\nThe 10Gigabit ethernet device drivers appear to be able to chew\nup all 256MB of TCE mappings on pSeries systems, as evidenced by\nnumerous error messages:\n\n iommu_alloc failed, tbl c0000000010d5c48 vaddr c0000000d875eff0 npages 1\n\nSome experimentation indicates that this is essentially because\none 1500 byte ethernet MTU gets mapped as a 64K DMA region when\nthe large 64K pages are enabled. Thus, it doesn\u0027t take much to\nexhaust all of the available DMA mappings for a high-speed card.\n\nThis patch changes the iommu allocator to work with its own\nunique, distinct page size. Although the patch is long, its\nactually quite simple: it just #defines a distinct IOMMU_PAGE_SIZE\nand then uses this in all the places that matter.\n\nAs a side effect, it also dramatically improves network performance\non platforms with H-calls on iommu translation inserts/removes (since\nwe no longer call it 16 times for a 1500 bytes packet when the iommu HW\nis still 4k).\n\nIn the future, we might want to make the IOMMU_PAGE_SIZE a variable\nin the iommu_table instance, thus allowing support for different HW\npage sizes in the iommu itself.\n\nSigned-off-by: Linas Vepstas \u003clinas@austin.ibm.com\u003e\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nAcked-by: Olof Johansson \u003colof@lixom.net\u003e\nAcked-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\n" }, { "commit": "bc97ce951cfb697eaac9d5b6a2fbe4544fdf1a7c", "tree": "ae880181c00f47a28e805f5328ab7e9a15620ee9", "parents": [ "c7f0e8cb5654a50986c6097b3c0cca972e406899" ], "author": { "name": "Olof Johansson", "email": "olof@lixom.net", "time": "Fri Apr 28 22:51:59 2006 -0500" }, "committer": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Sat Apr 29 18:07:54 2006 +1000" }, "message": "[PATCH] powerpc: kill union tce_entry\n\nIt\u0027s been long overdue to kill the union tce_entry in the pSeries/iSeries\nTCE code, especially since I asked the Summit guys to do it on the code\nthey copied from us.\n\nAlso, while I was at it, I cleaned up some whitespace.\n\nBuilt and booted on pSeries, built on iSeries.\n\nSigned-off-by: Olof Johansson \u003colof@lixom.net\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\n" }, { "commit": "88ced0314938814e1772b4d0d7ab20c52e4472b6", "tree": "3e06de882c0bf5706ee7a8994e06eb8c9ed3feca", "parents": [ "e1333803c3a8fb167ba67ffc5540dbb53fa7deb3" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Fri Dec 16 22:43:46 2005 +0100" }, "committer": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Mon Jan 09 15:13:08 2006 +1100" }, "message": "[PATCH] powerpc: sanitize header files for user space includes\n\ninclude/asm-ppc/ had #ifdef __KERNEL__ in all header files that\nare not meant for use by user space, include/asm-powerpc does\nnot have this yet.\n\nThis patch gets us a lot closer there. There are a few cases\nwhere I was not sure, so I left them out. I have verified\nthat no CONFIG_* symbols are used outside of __KERNEL__\nany more and that there are no obvious compile errors when\nincluding any of the headers in user space libraries.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\n" }, { "commit": "91f14480a55a7487d61c3fb40500380099e0da50", "tree": "b455e3f957cd23b595d5761b107d07a1aac5935d", "parents": [ "1778d55edb62753a92b979fa57072c2e1ff3d062" ], "author": { "name": "Olof Johansson", "email": "olof@lixom.net", "time": "Mon Nov 21 02:12:32 2005 -0600" }, "committer": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Wed Nov 23 21:23:20 2005 +1100" }, "message": "[PATCH] powerpc: update my email address\n\nEmail address update, changing old work address to personal (permanent)\none.\n\nSigned-off-by: Olof Johansson \u003colof@lixom.net\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\n" }, { "commit": "8882a4da1c932c9f311c9f739e6719adea3e25d9", "tree": "1cf5e23780468d35305cde874f31c6223693908f", "parents": [ "584224e4095d8abcf2bef38efacc291be9a44c20" ], "author": { "name": "David Gibson", "email": "david@gibson.dropbear.id.au", "time": "Wed Nov 09 13:38:01 2005 +1100" }, "committer": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Thu Nov 10 11:24:04 2005 +1100" }, "message": "[PATCH] powerpc: Move various ppc64 files with no ppc32 equivalent to powerpc\n\nThis patch moves a bunch of files from arch/ppc64 and\ninclude/asm-ppc64 which have no equivalents in ppc32 code into\narch/powerpc and include/asm-powerpc. The file affected are:\n\tabs_addr.h\n\tcompat.h\n\tlppaca.h\n\tpaca.h\n\ttce.h\n\tcpu_setup_power4.S\n\tioctl32.c\n\tfirmware.c\n\tpacaData.c\n\nThe only changes apart from the move and corresponding Makefile\nchanges are:\n\t- #ifndef/#define in includes updated to _ASM_POWERPC_ form\n\t- trailing whitespace removed\n\t- comments giving full paths removed\n\t- pacaData.c renamed paca.c to remove studlyCaps\n\t- Misplaced { moved in lppaca.h\n\nBuilt and booted on POWER5 LPAR (ARCH\u003dpowerpc and ARCH\u003dppc64), built\nfor 32-bit powermac (ARCH\u003dpowerpc).\n\nSigned-off-by: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\n" }, { "commit": "d0035c62d9145a2ce3057c8182a7ff0b4921a41c", "tree": "0a55703d5e71668f61439649f4963daba55401c3", "parents": [ "c707ffcf3a44914f30e5f2fd53089ad5586c9e42" ], "author": { "name": "Olof Johansson", "email": "olof@lixom.net", "time": "Tue Sep 20 13:46:44 2005 +1000" }, "committer": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Wed Sep 21 19:21:07 2005 +1000" }, "message": "[PATCH] ppc64: Updated Olof iommu updates 2/3\n\nThere are potential cases in the future where the IOMMU might be\nmapping smaller pages than the regular MMU is using. Keep the\nallocator working on MMU pagesizes, but the low-level mapping\nfunctions need to map more than one TCE entry per page to deal with\nthis.\n\nSigned-off-by: Olof Johansson \u003colof@lixom.net\u003e\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\n" }, { "commit": "c707ffcf3a44914f30e5f2fd53089ad5586c9e42", "tree": "5a5d95c903d0440adcdd638b74be78fe51b42612", "parents": [ "a21ead3239c6a7a1220b45df0a7b537882afff16" ], "author": { "name": "Olof Johansson", "email": "olof@lixom.net", "time": "Tue Sep 20 13:45:41 2005 +1000" }, "committer": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Wed Sep 21 19:21:06 2005 +1000" }, "message": "[PATCH] ppc64: Updated Olof iommu updates 1/3\n\nSplit out the implementation-specific parts of include/asm-ppc64/iommu.h\nto separate include files (tce.h and dart.h respectively).\n\nThe generic iommu code really doesn\u0027t care about the underlying\nimplementation, and the TCE and DART stuff is completely different.\n\nSigned-off-by: Olof Johansson \u003colof@lixom.net\u003e\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\n" } ] }