On Dec 10, 2012, at 3:32 PM, Jimi Xenidis <ji...@pobox.com> wrote: > > On Dec 7, 2012, at 8:31 AM, Andrew Tauferner <atau...@us.ibm.com> wrote: > >> Jimi, >> >>>> Do you actually want this upstream? I assume no. >>> >>> I needed to get these long-term patches out there for the BGQ >>> community for test. >> >> To which BGQ community are you referring? > > This work is being done by IBM Research (me) and made possible by the US-DOE > via: > <https://sites.google.com/site/foxxstack/project-updates> > >> What is the motivation for this work? > > Maintain a modern kernel that has a "reasonable" set of patches that, with > the much appreciated feedback from the Linux community, _could_ go upstream. > >> >>> I would very much like to get a version of these upstream. >>> I expect only the QPX, kexec, and (maybe) the DCR changes to cause >>> any controversy, but I've been wrong before. >> >> Hehe. Ben had a variety of issues with the BG/Q firmware when he >> gave me some feedback a few years ago. > > Yup, I think I have addressed these issues. > >> >>> I'll be making those patches soon and hope to get a lot of feedback >>> from these patches. >> >> What was the starting point for this work? On what is it based? > > <https://repo.anl-external.org/viewvc/bgq-driver/V1R1M2/?sortdir=down>>
I should add that these patches have been heavily modified to meet requirements and suggestions of BenH and others. -jx > > -jx > > >> >>> -jx >>> >>> >>>> >>>> Mikey >>>> >>>>> >>>>> Here is a are the summary logs: >>>>> >>>>> $ git log --reverse linux-stable/linux-3.4.y.. >>>>> commit 5a8edb2bdd914597693eed299119ff4c2e6d31f2 >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Fri Nov 9 09:26:00 2012 -0600 >>>>> >>>>> powerpc: Fix cputable #ifdef where CONFIG_PPC_A2 is used for >>> CONFIG_PPC_BOOK3E_64 >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit ea51920d7035c8d23801d6de46261e7d0a537dfd >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Fri Nov 9 08:58:27 2012 -0600 >>>>> >>>>> powerpc/book3e: Remove config for PPC_A2_DD2 since there is no >>> reference to it >>>>> >>>>> This must have been leftover from early DD1 days which is not >>>>> present in any current kernel code. >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit 08151401a5db4ff0d441a1b7bf8ad92bd92b14c5 >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Mon Nov 5 09:38:01 2012 -0600 >>>>> >>>>> powerpc/dcr: Some native DCR fixes >>>>> >>>>> The following fixes have been made: >>>>> - dcr_read/write_native() must use the indexed version of the >>>>> m[ft]dcrx since the non-indexed version only allows a 10-bit >>>>> numerical space, but the C interface allows a full 32-bits. >>>>> - C bindings for m[ft]dcrx, and the "table" versions, should use >>>>> "unsigned long" so that they are 64/32 bit neutral. >>>>> - The "table" versions (__m[ft]cdr) should obtain the table address >>>>> with LOAD_REG_ADDR(), this will also make it 64/32bit neutral. >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit c8320a5daaceed03992d763302020834ea8e17dd >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Mon Nov 5 09:12:00 2012 -0600 >>>>> >>>>> powerpc/dcr: Add 64-bit DCR access methods. >>>>> >>>>> This patch adds the ability to make 64-bit Device Control Register >>>>> (DCR) accesses. >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit a763b3f8453b3bd83d7dded8c6644939863af430 >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Thu Nov 29 12:49:24 2012 -0500 >>>>> >>>>> powerpc/boot: Add a "spin_threads" hook to platform_ops >>>>> >>>>> It is useful for the boot program to arrange for all secondary cpus >>>>> and threads to enter the kernel in a "kexec" fashion. This hook makes >>>>> it possible. >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit 391e43393380b514d4d02a42d059619542c7597b >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Thu Nov 29 13:01:23 2012 -0500 >>>>> >>>>> powerpc/kexec: Add kexec "hold" support for Book3e processors >>>>> >>>>> This patch add two items: >>>>> 1) Book3e requires that GPR4 survive the "hold" process, so we make >>>>> sure that happens. >>>>> 2) Book3e has no real mode, and the hold code exploits this. Since >>>>> these processors ares always translated, we arrange for the kexeced >>>>> threads to enter the hold code using the normal kernel >>> linear mapping. >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit f6e3c1f706cb6922349d639a74ff6c50acc8b9f8 >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Wed Dec 5 13:41:25 2012 -0500 >>>>> >>>>> powerpc: Remove unecessary VSX symbols >>>>> >>>>> The symbol THREAD_VSR0 is defined to be the same as THREAD_FPR0. Its >>>>> presence causes build issues with more complex configurations. >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit 4e817bb42ec8e3d3689877528dd97c4286a870eb >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Tue Nov 20 10:10:52 2012 -0600 >>>>> >>>>> Blue Gene/Q wicked optimizing compiler does not know the rfdi >>> instruction yet >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit 2071aa58b2f3b33d97c94e3a127f7c5d4ffaeb34 >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Tue Nov 20 10:14:22 2012 -0600 >>>>> >>>>> Blue Gene/Q wicked optimizing compiler does not know the >>> mfdcrx instruction yet >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit 6e58088fabedbb2d724637b539ba180c03ed8b68 >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Wed Oct 31 16:33:21 2012 -0500 >>>>> >>>>> powerpc/book3e: IBM Blue Gene/Q Boot >>>>> >>>>> This patch specifically deals with the initial program load >>>>> environment so that a boot image (dtbImage.bgq) can be loaded by the >>>>> BGQ management tools. The boot code is a little odd because it has to >>>>> deal with the following issues: >>>>> - Linux boot image wrappers are 32-bit programs >>>>> - BGQ Tools only load 64bit ELF programs >>>>> - BGQ Firmware information is typically loaded at an address > 4G >>>>> - BGQ FW information contains 64-bit ABI function pointers (which are >>>>> actually function descriptors) to access firmware methods >>>>> - BGQ FW methods must be called in 64-bit mode >>>>> >>>>> Includes code contributed from: >>>>> Andrew Tauferner <atau...@us.ibm.com> >>>>> Todd Inglett <tingl...@us.ibm.com> >>>>> Eric Van Hensbergen <eri...@gmail.com> >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit 3bc841935eb4955ce2b2db69bff16f7928464597 >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Wed Oct 31 22:36:54 2012 -0500 >>>>> >>>>> powerpc/book3e: IBM Blue Gene/Q Platform and SMP >>>>> >>>>> This patch introduces BGQ as a platform and adds SMP functionality >>>>> >>>>> Includes code contributed from: >>>>> Andrew Tauferner <atau...@us.ibm.com> >>>>> Todd Inglett <tingl...@us.ibm.com> >>>>> Eric Van Hensbergen <eri...@gmail.com> >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit 279c0615917b959a652e81f4ad0d886e2d426d85 >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Wed Dec 5 13:43:22 2012 -0500 >>>>> >>>>> powerpc/book3e: IBM Blue Gene/Q Quad Processing eXtention (QPX) >>>>> >>>>> This enables kernel support for the QPX extention and is intended for >>>>> processors that support it, usually an IBM Blue Gene processor. >>>>> Turning it on does not effect other processors but it does add code >>>>> and will quadruple the per thread save and restore area for the FPU >>>>> (hense the name). If you have enabled VSX it will only double the >>>>> space. >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit 6ff45170ab0463fb34d7011e08c7e47c396f0fd7 >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Fri Nov 23 14:52:14 2012 -0600 >>>>> >>>>> powerpc/book3e: IBM Blue Gene/Q HVC Based Firmware Console >>>>> >>>>> New HVC device that uses the Blue Gene Firmware methods to erad and >>>>> write to console. >>>>> >>>>> Includes code contributed from: >>>>> Andrew Tauferner <atau...@us.ibm.com> >>>>> Todd Inglett <tingl...@us.ibm.com> >>>>> Eric Van Hensbergen <eri...@gmail.com> >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit e4ddc0c2ad8b3f0260d15d73e153095e95da84ac >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Thu Nov 29 15:52:04 2012 -0500 >>>>> >>>>> powerpc/book3e: IBM Blue Gene/Q PCIe and MSI >>>>> >>>>> The following patch adds support for the BG/Q PCIe bridge and >>> MSI interrupts. >>>>> >>>>> Includes code contributed from: >>>>> Jay S. Bryant <jsbry...@us.ibm.com> >>>>> Eric Van Hensbergen <eri...@gmail.com> >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit 9fc0b6f729f7bd7e31338283640a718fa4b1693b >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Wed Dec 5 07:01:49 2012 -0500 >>>>> >>>>> powerpc/book3e: IBM Blue Gene/Q Character Drivers >>>>> >>>>> The following patch adds support for user and administration >>>>> applications to access the BG/Q control system. >>>>> >>>>> Includes code contributed from: >>>>> Jay S. Bryant <jsbry...@us.ibm.com> >>>>> Eric Van Hensbergen <eri...@gmail.com> >>>>> >>>>> Signed-off-by: Jimi Xenidis <ji...@pobox.com> >>>>> >>>>> commit 9df2c4dfde0ac75f8b2bfcf565f78c2b7382b031 >>>>> Author: Jimi Xenidis <ji...@pobox.com> >>>>> Date: Thu Dec 6 18:07:16 2012 -0500 >>>>> >>>>> Linux 3.4.22-BGQ-rc1 >>>>> >>>>> >>>>> >>>>> >>>>> _______________________________________________ >>>>> Linuxppc-dev mailing list >>>>> Linuxppc-dev@lists.ozlabs.org >>>>> https://lists.ozlabs.org/listinfo/linuxppc-dev >>>>> >>> >> > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
