From: Michael Neuling <mikey@neuling•org>
To: Jimi Xenidis <jimix@pobox•com>
Cc: Andrew T Tauferner <ataufer@us•ibm.com>,
Kumar Gala <kumar.gala@gmail•com>,
Jay Bryant <jsbryant@us•ibm.com>,
Josh Boyer <jwboyer@linux•vnet.ibm.com>,
Todd Inglett <tinglett@us•ibm.com>,
linuxppc-dev <linuxppc-dev@lists•ozlabs.org>
Subject: Re: [RFC] Add IBM Blue Gene/Q Platform
Date: Mon, 10 Dec 2012 11:26:07 +1100 [thread overview]
Message-ID: <1852.1355099167@neuling.org> (raw)
In-Reply-To: <644E8572-68F8-4C31-AA9D-96EBC95BC37F@pobox.com>
Jimi Xenidis <jimix@pobox•com> wrote:
>
> On Dec 6, 2012, at 11:56 PM, Michael Neuling <mikey@neuling•org> wrote:
>
> > Jimi Xenidis <jimix@pobox•com> wrote:
> >
> >> Rather than flood the mailing list with the patches, I've arranged for a git repo to hold the changesets.
> >> You can find the repo here:
> >> <https://github.com/jimix/linux-bgq>
> >>
> >> They are against GregKH's linux-stable.git long-term 3.4.y (y=22) branch.
> >> The first 9 (6e58088f..) effect common code and the rest are BGQ specific.
> >
> > 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. I would very much like to get a version of these
> upstream.
Ok, cool.
> I expect only the QPX, kexec, and (maybe) the DCR changes to cause any controversy, but I've been wrong before.
>From my perspective, the QPX stuff should be fine to get upstream once
we beat the patches into shape. No comment on kexec and DCR.
Mikey
> I'll be making those patches soon and hope to get a lot of feedback
> from these patches. -jx
>
>
> >
> > Mikey
> >
> >>
> >> Here is a are the summary logs:
> >>
> >> $ git log --reverse linux-stable/linux-3.4.y..
> >> commit 5a8edb2bdd914597693eed299119ff4c2e6d31f2
> >> Author: Jimi Xenidis <jimix@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 <jimix@pobox•com>
> >>
> >> commit ea51920d7035c8d23801d6de46261e7d0a537dfd
> >> Author: Jimi Xenidis <jimix@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 <jimix@pobox•com>
> >>
> >> commit 08151401a5db4ff0d441a1b7bf8ad92bd92b14c5
> >> Author: Jimi Xenidis <jimix@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 <jimix@pobox•com>
> >>
> >> commit c8320a5daaceed03992d763302020834ea8e17dd
> >> Author: Jimi Xenidis <jimix@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 <jimix@pobox•com>
> >>
> >> commit a763b3f8453b3bd83d7dded8c6644939863af430
> >> Author: Jimi Xenidis <jimix@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 <jimix@pobox•com>
> >>
> >> commit 391e43393380b514d4d02a42d059619542c7597b
> >> Author: Jimi Xenidis <jimix@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 <jimix@pobox•com>
> >>
> >> commit f6e3c1f706cb6922349d639a74ff6c50acc8b9f8
> >> Author: Jimi Xenidis <jimix@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 <jimix@pobox•com>
> >>
> >> commit 4e817bb42ec8e3d3689877528dd97c4286a870eb
> >> Author: Jimi Xenidis <jimix@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 <jimix@pobox•com>
> >>
> >> commit 2071aa58b2f3b33d97c94e3a127f7c5d4ffaeb34
> >> Author: Jimi Xenidis <jimix@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 <jimix@pobox•com>
> >>
> >> commit 6e58088fabedbb2d724637b539ba180c03ed8b68
> >> Author: Jimi Xenidis <jimix@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 <ataufer@us•ibm.com>
> >> Todd Inglett <tinglett@us•ibm.com>
> >> Eric Van Hensbergen <ericvh@gmail•com>
> >>
> >> Signed-off-by: Jimi Xenidis <jimix@pobox•com>
> >>
> >> commit 3bc841935eb4955ce2b2db69bff16f7928464597
> >> Author: Jimi Xenidis <jimix@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 <ataufer@us•ibm.com>
> >> Todd Inglett <tinglett@us•ibm.com>
> >> Eric Van Hensbergen <ericvh@gmail•com>
> >>
> >> Signed-off-by: Jimi Xenidis <jimix@pobox•com>
> >>
> >> commit 279c0615917b959a652e81f4ad0d886e2d426d85
> >> Author: Jimi Xenidis <jimix@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 <jimix@pobox•com>
> >>
> >> commit 6ff45170ab0463fb34d7011e08c7e47c396f0fd7
> >> Author: Jimi Xenidis <jimix@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 <ataufer@us•ibm.com>
> >> Todd Inglett <tinglett@us•ibm.com>
> >> Eric Van Hensbergen <ericvh@gmail•com>
> >>
> >> Signed-off-by: Jimi Xenidis <jimix@pobox•com>
> >>
> >> commit e4ddc0c2ad8b3f0260d15d73e153095e95da84ac
> >> Author: Jimi Xenidis <jimix@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 <jsbryant@us•ibm.com>
> >> Eric Van Hensbergen <ericvh@gmail•com>
> >>
> >> Signed-off-by: Jimi Xenidis <jimix@pobox•com>
> >>
> >> commit 9fc0b6f729f7bd7e31338283640a718fa4b1693b
> >> Author: Jimi Xenidis <jimix@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 <jsbryant@us•ibm.com>
> >> Eric Van Hensbergen <ericvh@gmail•com>
> >>
> >> Signed-off-by: Jimi Xenidis <jimix@pobox•com>
> >>
> >> commit 9df2c4dfde0ac75f8b2bfcf565f78c2b7382b031
> >> Author: Jimi Xenidis <jimix@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
> >>
>
prev parent reply other threads:[~2012-12-10 0:26 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-07 1:53 [RFC] Add IBM Blue Gene/Q Platform Jimi Xenidis
2012-12-07 5:41 ` Michael Neuling
2012-12-07 13:12 ` Jimi Xenidis
2012-12-10 0:12 ` Michael Neuling
2012-12-07 5:54 ` Michael Neuling
2012-12-07 5:55 ` Michael Neuling
2012-12-07 13:38 ` Jimi Xenidis
2012-12-08 22:22 ` Jimi Xenidis
2012-12-10 0:47 ` Michael Neuling
2012-12-10 5:56 ` Jimi Xenidis
2012-12-10 6:06 ` Michael Neuling
2012-12-10 0:18 ` Michael Neuling
2012-12-07 5:56 ` Michael Neuling
2012-12-07 13:44 ` Jimi Xenidis
2012-12-07 14:31 ` Andrew Tauferner
2012-12-10 21:32 ` Jimi Xenidis
2012-12-10 21:33 ` Jimi Xenidis
2012-12-10 0:26 ` Michael Neuling [this message]
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