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