[RFC] Add IBM Blue Gene/Q Platform
Michael Neuling
mikey at neuling.org
Fri Dec 7 16:56:27 EST 2012
Jimi Xenidis <jimix at 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.
Mikey
>
> Here is a are the summary logs:
>
> $ git log --reverse linux-stable/linux-3.4.y..
> commit 5a8edb2bdd914597693eed299119ff4c2e6d31f2
> Author: Jimi Xenidis <jimix at 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 at pobox.com>
>
> commit ea51920d7035c8d23801d6de46261e7d0a537dfd
> Author: Jimi Xenidis <jimix at 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 at pobox.com>
>
> commit 08151401a5db4ff0d441a1b7bf8ad92bd92b14c5
> Author: Jimi Xenidis <jimix at 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 at pobox.com>
>
> commit c8320a5daaceed03992d763302020834ea8e17dd
> Author: Jimi Xenidis <jimix at 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 at pobox.com>
>
> commit a763b3f8453b3bd83d7dded8c6644939863af430
> Author: Jimi Xenidis <jimix at 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 at pobox.com>
>
> commit 391e43393380b514d4d02a42d059619542c7597b
> Author: Jimi Xenidis <jimix at 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 at pobox.com>
>
> commit f6e3c1f706cb6922349d639a74ff6c50acc8b9f8
> Author: Jimi Xenidis <jimix at 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 at pobox.com>
>
> commit 4e817bb42ec8e3d3689877528dd97c4286a870eb
> Author: Jimi Xenidis <jimix at 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 at pobox.com>
>
> commit 2071aa58b2f3b33d97c94e3a127f7c5d4ffaeb34
> Author: Jimi Xenidis <jimix at 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 at pobox.com>
>
> commit 6e58088fabedbb2d724637b539ba180c03ed8b68
> Author: Jimi Xenidis <jimix at 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 at us.ibm.com>
> Todd Inglett <tinglett at us.ibm.com>
> Eric Van Hensbergen <ericvh at gmail.com>
>
> Signed-off-by: Jimi Xenidis <jimix at pobox.com>
>
> commit 3bc841935eb4955ce2b2db69bff16f7928464597
> Author: Jimi Xenidis <jimix at 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 at us.ibm.com>
> Todd Inglett <tinglett at us.ibm.com>
> Eric Van Hensbergen <ericvh at gmail.com>
>
> Signed-off-by: Jimi Xenidis <jimix at pobox.com>
>
> commit 279c0615917b959a652e81f4ad0d886e2d426d85
> Author: Jimi Xenidis <jimix at 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 at pobox.com>
>
> commit 6ff45170ab0463fb34d7011e08c7e47c396f0fd7
> Author: Jimi Xenidis <jimix at 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 at us.ibm.com>
> Todd Inglett <tinglett at us.ibm.com>
> Eric Van Hensbergen <ericvh at gmail.com>
>
> Signed-off-by: Jimi Xenidis <jimix at pobox.com>
>
> commit e4ddc0c2ad8b3f0260d15d73e153095e95da84ac
> Author: Jimi Xenidis <jimix at 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 at us.ibm.com>
> Eric Van Hensbergen <ericvh at gmail.com>
>
> Signed-off-by: Jimi Xenidis <jimix at pobox.com>
>
> commit 9fc0b6f729f7bd7e31338283640a718fa4b1693b
> Author: Jimi Xenidis <jimix at 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 at us.ibm.com>
> Eric Van Hensbergen <ericvh at gmail.com>
>
> Signed-off-by: Jimi Xenidis <jimix at pobox.com>
>
> commit 9df2c4dfde0ac75f8b2bfcf565f78c2b7382b031
> Author: Jimi Xenidis <jimix at pobox.com>
> Date: Thu Dec 6 18:07:16 2012 -0500
>
> Linux 3.4.22-BGQ-rc1
>
>
>
>
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