)]}' { "log": [ { "commit": "17099b1142f6c0359fca60a3464dea8fb30badea", "tree": "26b9f3955dca84ccab594a76680c2a71e166768a", "parents": [ "ed203dadcd1373e80e95b04075e1eefc554a914b" ], "author": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Sat Jul 14 13:24:05 2007 +0100" }, "committer": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Fri Jul 20 18:57:39 2007 +0100" }, "message": "[MIPS] Make support for weakly ordered LL/SC a config option.\n\nNone of weakly ordered processor supported in tree need this but it seems\nlike this could change ...\n\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\n" }, { "commit": "d52c2d5a626a2cb1848fa7063b3ab79e2752dac7", "tree": "de525a4b04f3710d965a662f26d402e872a21247", "parents": [ "d0c91ae2bb3df9d7bef279d8f400e0c8ddde0b5e" ], "author": { "name": "Dave Johnson", "email": "djohnson+linux-mips@sw.starentnetworks.com", "time": "Mon Mar 05 20:50:27 2007 -0500" }, "committer": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Wed Mar 07 00:07:17 2007 +0000" }, "message": "[MIPS] Fix __raw_read_trylock() to allow multiple readers\n\nA deadlock can occur for mixed irq and non-irq rwlock readers if a 2nd\nreader attempts to take lock by looping around __raw_read_trylock().\n\nSigned-off-by: Dave Johnson \u003cdjohnson+linux-mips@sw.starentnetworks.com\u003e\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\n" }, { "commit": "f65e4fa8e0c6022ad58dc88d1b11b12589ed7f9f", "tree": "2405e012e079693e0fcfde9ff981c549d6c68a21", "parents": [ "509cb37e173d4e39cec47238397e91b718730794" ], "author": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Thu Sep 28 01:45:21 2006 +0100" }, "committer": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Tue Feb 13 22:40:50 2007 +0000" }, "message": "[MIPS] Improve branch prediction in ll/sc atomic operations.\n\nNow that finally all supported versions of binutils have functioning\nsupport for .subsection use .subsection to tweak the branch prediction\n\nI did not modify the R10000 errata variants because it seems unclear if\nthis will invalidate the workaround which actually relies on the cheesy\nprediction of branch likely to cause a misspredict if the sc was\nsuccessful.\n\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\n" }, { "commit": "0004a9dfeaa709a7f853487aba19932c9b1a87c8", "tree": "e9f1f4b1ca897e57f46778cef283617ba83fc855", "parents": [ "08f57f7ffe5819e537301b1f1109fa4fc670bfff" ], "author": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Tue Oct 31 03:45:07 2006 +0000" }, "committer": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Mon Dec 04 22:43:14 2006 +0000" }, "message": "[MIPS] Cleanup memory barriers for weakly ordered systems.\n\nAlso the R4000 / R4600 LL/SC instructions imply a sync so no explicit sync\nneeded.\n\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\n" }, { "commit": "ef6edc9746dc2bfdacf44eefd5f881179971c478", "tree": "e8670e918a852978b2e93e189936f327be072284", "parents": [ "e3e5fc91d9828a9b94a3992de47d47d2d2e34ec6" ], "author": { "name": "Martin Schwidefsky", "email": "schwidefsky@de.ibm.com", "time": "Sat Sep 30 23:27:43 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 01 00:39:21 2006 -0700" }, "message": "[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks\n\nOn systems running with virtual cpus there is optimization potential in\nregard to spinlocks and rw-locks. If the virtual cpu that has taken a lock\nis known to a cpu that wants to acquire the same lock it is beneficial to\nyield the timeslice of the virtual cpu in favour of the cpu that has the\nlock (directed yield).\n\nWith CONFIG_PREEMPT\u003d\"n\" this can be implemented by the architecture without\ncommon code changes. Powerpc already does this.\n\nWith CONFIG_PREEMPT\u003d\"y\" the lock loops are coded with _raw_spin_trylock,\n_raw_read_trylock and _raw_write_trylock in kernel/spinlock.c. If the lock\ncould not be taken cpu_relax is called. A directed yield is not possible\nbecause cpu_relax doesn\u0027t know anything about the lock. To be able to\nyield the lock in favour of the current lock holder variants of cpu_relax\nfor spinlocks and rw-locks are needed. The new _raw_spin_relax,\n_raw_read_relax and _raw_write_relax primitives differ from cpu_relax\ninsofar that they have an argument: a pointer to the lock structure.\n\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Haavard Skinnemoen \u003chskinnemoen@atmel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "65316fd13ad9d82560edbad0a940d684380f7461", "tree": "9b3bf885035525a42143a49952b5eabb45fab65e", "parents": [ "09f451bfb9fe5ceea763a9ebd6ec73dd05e4faf8" ], "author": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Thu Aug 31 14:16:06 2006 +0100" }, "committer": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Wed Sep 27 13:37:39 2006 +0100" }, "message": "[MIPS] Replace generic__raw_read_trylock usage\n\ngeneric__raw_read_trylock() is a defect generic function actually doing\na __raw_read_lock ...\n\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\n" }, { "commit": "beb3ca82fc0c2ec938b7446b006c8f34abb301b2", "tree": "ea89c648dbeae35bdbe9734b2138ecdebdb55fe1", "parents": [ "4ee1303a787434d4994ae68d028ca025e339b434" ], "author": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Sat Oct 29 19:32:40 2005 +0100" }, "committer": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Sat Oct 29 19:32:40 2005 +0100" }, "message": "More configcheck fixes.\n\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\n" }, { "commit": "b63014ad2dfd137ac38210c7c5cda7ecc3f536d0", "tree": "6943cb448f9e9cc8ef8c665f4c87b3842c7fb318", "parents": [ "93b25d0621560012ff60a95ae265823b3a5e811a" ], "author": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Thu Apr 14 15:28:28 2005 +0000" }, "committer": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Sat Oct 29 19:31:08 2005 +0100" }, "message": "Move sync into the delay slot here also.\n\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\n" }, { "commit": "e3c4807825501f0b445fe34b627669be24b59320", "tree": "438898b7a348ca7b4a452d4f7c143dc1a694c60e", "parents": [ "f638d1971e3135025471c99bf079a24fbb1f3bfa" ], "author": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Thu Feb 03 13:34:45 2005 +0000" }, "committer": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Sat Oct 29 19:30:22 2005 +0100" }, "message": "Define __raw_read_can_lock / __raw_write_can_lock.\n\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\n" }, { "commit": "fb1c8f93d869b34cacb8b8932e2b83d96a19d720", "tree": "a006d078aa02e421a7dc4793c335308204859d36", "parents": [ "4327edf6b8a7ac7dce144313947995538842d8fd" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Sep 10 00:25:56 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Sep 10 10:06:21 2005 -0700" }, "message": "[PATCH] spinlock consolidation\n\nThis patch (written by me and also containing many suggestions of Arjan van\nde Ven) does a major cleanup of the spinlock code. It does the following\nthings:\n\n - consolidates and enhances the spinlock/rwlock debugging code\n\n - simplifies the asm/spinlock.h files\n\n - encapsulates the raw spinlock type and moves generic spinlock\n features (such as -\u003ebreak_lock) into the generic code.\n\n - cleans up the spinlock code hierarchy to get rid of the spaghetti.\n\nMost notably there\u0027s now only a single variant of the debugging code,\nlocated in lib/spinlock_debug.c. (previously we had one SMP debugging\nvariant per architecture, plus a separate generic one for UP builds)\n\nAlso, i\u0027ve enhanced the rwlock debugging facility, it will now track\nwrite-owners. There is new spinlock-owner/CPU-tracking on SMP builds too.\nAll locks have lockup detection now, which will work for both soft and hard\nspin/rwlock lockups.\n\nThe arch-level include files now only contain the minimally necessary\nsubset of the spinlock code - all the rest that can be generalized now\nlives in the generic headers:\n\n include/asm-i386/spinlock_types.h | 16\n include/asm-x86_64/spinlock_types.h | 16\n\nI have also split up the various spinlock variants into separate files,\nmaking it easier to see which does what. The new layout is:\n\n SMP | UP\n ----------------------------|-----------------------------------\n asm/spinlock_types_smp.h | linux/spinlock_types_up.h\n linux/spinlock_types.h | linux/spinlock_types.h\n asm/spinlock_smp.h | linux/spinlock_up.h\n linux/spinlock_api_smp.h | linux/spinlock_api_up.h\n linux/spinlock.h | linux/spinlock.h\n\n/*\n * here\u0027s the role of the various spinlock/rwlock related include files:\n *\n * on SMP builds:\n *\n * asm/spinlock_types.h: contains the raw_spinlock_t/raw_rwlock_t and the\n * initializers\n *\n * linux/spinlock_types.h:\n * defines the generic type and initializers\n *\n * asm/spinlock.h: contains the __raw_spin_*()/etc. lowlevel\n * implementations, mostly inline assembly code\n *\n * (also included on UP-debug builds:)\n *\n * linux/spinlock_api_smp.h:\n * contains the prototypes for the _spin_*() APIs.\n *\n * linux/spinlock.h: builds the final spin_*() APIs.\n *\n * on UP builds:\n *\n * linux/spinlock_type_up.h:\n * contains the generic, simplified UP spinlock type.\n * (which is an empty structure on non-debug builds)\n *\n * linux/spinlock_types.h:\n * defines the generic type and initializers\n *\n * linux/spinlock_up.h:\n * contains the __raw_spin_*()/etc. version of UP\n * builds. (which are NOPs on non-debug, non-preempt\n * builds)\n *\n * (included on UP-non-debug builds:)\n *\n * linux/spinlock_api_up.h:\n * builds the _spin_*() APIs.\n *\n * linux/spinlock.h: builds the final spin_*() APIs.\n */\n\nAll SMP and UP architectures are converted by this patch.\n\narm, i386, ia64, ppc, ppc64, s390/s390x, x64 was build-tested via\ncrosscompilers. m32r, mips, sh, sparc, have not been tested yet, but should\nbe mostly fine.\n\nFrom: Grant Grundler \u003cgrundler@parisc-linux.org\u003e\n\n Booted and lightly tested on a500-44 (64-bit, SMP kernel, dual CPU).\n Builds 32-bit SMP kernel (not booted or tested). I did not try to build\n non-SMP kernels. That should be trivial to fix up later if necessary.\n\n I converted bit ops atomic_hash lock to raw_spinlock_t. Doing so avoids\n some ugly nesting of linux/*.h and asm/*.h files. Those particular locks\n are well tested and contained entirely inside arch specific code. I do NOT\n expect any new issues to arise with them.\n\n If someone does ever need to use debug/metrics with them, then they will\n need to unravel this hairball between spinlocks, atomic ops, and bit ops\n that exist only because parisc has exactly one atomic instruction: LDCW\n (load and clear word).\n\nFrom: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\n\n ia64 fix\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjanv@infradead.org\u003e\nSigned-off-by: Grant Grundler \u003cgrundler@parisc-linux.org\u003e\nCc: Matthew Wilcox \u003cwilly@debian.org\u003e\nSigned-off-by: Hirokazu Takata \u003ctakata@linux-m32r.org\u003e\nSigned-off-by: Mikael Pettersson \u003cmikpe@csd.uu.se\u003e\nSigned-off-by: Benoit Boissinot \u003cbenoit.boissinot@ens-lyon.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\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" } ] }