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>> -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
