From: Michael Neuling <mikey@neuling.org> To: greg@kroah.com, arnd@arndb.de, mpe@ellerman.id.au, benh@kernel.crashing.org Cc: mikey@neuling.org, anton@samba.org, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, jk@ozlabs.org, imunsie@au.ibm.com, cbe-oss-dev@lists.ozlabs.org Subject: [PATCH 0/15] POWER8 Coherent Accelerator device driver Date: Thu, 18 Sep 2014 18:26:45 +1000 [thread overview] Message-ID: <1411028820-29933-1-git-send-email-mikey@neuling.org> (raw) This add support for the Coherent Accelerator (cxl) attached to POWER8 processors. This coherent accelerator interface is designed to allow the coherent connection of FPGA based accelerators (and other devices) to a POWER systems. IBM refers to this as the Coherent Accelerator Processor Interface or CAPI. In this driver it's referred to by the name cxl to avoid confusion with the ISDN CAPI subsystem. An overview of the patches: Patches 1-2: Split some of the old Cell co-processor code out so it can be reused. Patches 3-9: Add infrastructure to arch/powerpc needed by cxl. Patches 10: Add call backs needed for invalidating cxl mm contexts. Patch 11: Add cxl specific support that needs to be built in to the kernel (can't be a module). Patches 12-15: Add the majority of the device driver and API header. Patch 15: Documentation. The documentation in this last patch gives an overview of the hardware architecture as well as the userspace API. The cxl driver has a user-space interface described in include/uapi/misc/cxl.h and Documentation/powerpc/cxl.txt. There are two ioctls which can be used to talk to the driver once the new /dev/cxl/afu0.0 device is opened. This device can also be read and mmaped. There's also sysfs entries used to communicate information about the cxl configuration to userspace. These are documented in Documentation/ABI/testing/sysfs-class-cxl. Many contributed to this device driver but Ian Munsie is the principal author. Driver can also be found here (based on 3.17-rc5): git://github.com/mikey/linux.git cxl https://github.com/mikey/linux/commits/cxl Please consider for inclusion. Feedback welcome! Regards, Mikey Documentation/ABI/testing/sysfs-class-cxl | 125 ++++ Documentation/ioctl/ioctl-number.txt | 1 + Documentation/powerpc/00-INDEX | 2 + Documentation/powerpc/cxl.txt | 310 ++++++++ MAINTAINERS | 7 + arch/powerpc/include/asm/copro.h | 18 + arch/powerpc/include/asm/mmu-hash64.h | 3 + arch/powerpc/include/asm/opal.h | 2 + arch/powerpc/include/asm/pnv-pci.h | 27 + arch/powerpc/include/asm/spu.h | 5 +- arch/powerpc/mm/Makefile | 2 + arch/powerpc/mm/copro_fault.c | 140 ++++ arch/powerpc/mm/hash_native_64.c | 6 +- arch/powerpc/mm/hash_utils_64.c | 25 +- arch/powerpc/mm/slb.c | 3 - arch/powerpc/mm/slice.c | 3 + arch/powerpc/platforms/cell/Makefile | 2 +- arch/powerpc/platforms/cell/spu_base.c | 41 +- arch/powerpc/platforms/cell/spu_fault.c | 94 --- arch/powerpc/platforms/cell/spufs/fault.c | 4 +- arch/powerpc/platforms/powernv/opal-wrappers.S | 1 + arch/powerpc/platforms/powernv/pci-ioda.c | 229 +++++- arch/powerpc/sysdev/msi_bitmap.c | 18 +- drivers/misc/Kconfig | 1 + drivers/misc/Makefile | 1 + drivers/misc/cxl/Kconfig | 25 + drivers/misc/cxl/Makefile | 4 + drivers/misc/cxl/base.c | 102 +++ drivers/misc/cxl/context.c | 169 +++++ drivers/misc/cxl/cxl-pci.c | 977 +++++++++++++++++++++++++ drivers/misc/cxl/cxl.h | 605 +++++++++++++++ drivers/misc/cxl/debugfs.c | 116 +++ drivers/misc/cxl/fault.c | 298 ++++++++ drivers/misc/cxl/file.c | 503 +++++++++++++ drivers/misc/cxl/irq.c | 405 ++++++++++ drivers/misc/cxl/main.c | 238 ++++++ drivers/misc/cxl/native.c | 649 ++++++++++++++++ drivers/misc/cxl/sysfs.c | 348 +++++++++ include/misc/cxl.h | 34 + include/uapi/Kbuild | 1 + include/uapi/misc/Kbuild | 2 + include/uapi/misc/cxl.h | 88 +++ 42 files changed, 5463 insertions(+), 171 deletions(-)
WARNING: multiple messages have this Message-ID (diff)
From: Michael Neuling <mikey@neuling.org> To: greg@kroah.com, arnd@arndb.de, mpe@ellerman.id.au, benh@kernel.crashing.org Cc: cbe-oss-dev@lists.ozlabs.org, mikey@neuling.org, imunsie@au.ibm.com, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, jk@ozlabs.org, anton@samba.org Subject: [PATCH 0/15] POWER8 Coherent Accelerator device driver Date: Thu, 18 Sep 2014 18:26:45 +1000 [thread overview] Message-ID: <1411028820-29933-1-git-send-email-mikey@neuling.org> (raw) This add support for the Coherent Accelerator (cxl) attached to POWER8 processors. This coherent accelerator interface is designed to allow the coherent connection of FPGA based accelerators (and other devices) to a POWER systems. IBM refers to this as the Coherent Accelerator Processor Interface or CAPI. In this driver it's referred to by the name cxl to avoid confusion with the ISDN CAPI subsystem. An overview of the patches: Patches 1-2: Split some of the old Cell co-processor code out so it can be reused. Patches 3-9: Add infrastructure to arch/powerpc needed by cxl. Patches 10: Add call backs needed for invalidating cxl mm contexts. Patch 11: Add cxl specific support that needs to be built in to the kernel (can't be a module). Patches 12-15: Add the majority of the device driver and API header. Patch 15: Documentation. The documentation in this last patch gives an overview of the hardware architecture as well as the userspace API. The cxl driver has a user-space interface described in include/uapi/misc/cxl.h and Documentation/powerpc/cxl.txt. There are two ioctls which can be used to talk to the driver once the new /dev/cxl/afu0.0 device is opened. This device can also be read and mmaped. There's also sysfs entries used to communicate information about the cxl configuration to userspace. These are documented in Documentation/ABI/testing/sysfs-class-cxl. Many contributed to this device driver but Ian Munsie is the principal author. Driver can also be found here (based on 3.17-rc5): git://github.com/mikey/linux.git cxl https://github.com/mikey/linux/commits/cxl Please consider for inclusion. Feedback welcome! Regards, Mikey Documentation/ABI/testing/sysfs-class-cxl | 125 ++++ Documentation/ioctl/ioctl-number.txt | 1 + Documentation/powerpc/00-INDEX | 2 + Documentation/powerpc/cxl.txt | 310 ++++++++ MAINTAINERS | 7 + arch/powerpc/include/asm/copro.h | 18 + arch/powerpc/include/asm/mmu-hash64.h | 3 + arch/powerpc/include/asm/opal.h | 2 + arch/powerpc/include/asm/pnv-pci.h | 27 + arch/powerpc/include/asm/spu.h | 5 +- arch/powerpc/mm/Makefile | 2 + arch/powerpc/mm/copro_fault.c | 140 ++++ arch/powerpc/mm/hash_native_64.c | 6 +- arch/powerpc/mm/hash_utils_64.c | 25 +- arch/powerpc/mm/slb.c | 3 - arch/powerpc/mm/slice.c | 3 + arch/powerpc/platforms/cell/Makefile | 2 +- arch/powerpc/platforms/cell/spu_base.c | 41 +- arch/powerpc/platforms/cell/spu_fault.c | 94 --- arch/powerpc/platforms/cell/spufs/fault.c | 4 +- arch/powerpc/platforms/powernv/opal-wrappers.S | 1 + arch/powerpc/platforms/powernv/pci-ioda.c | 229 +++++- arch/powerpc/sysdev/msi_bitmap.c | 18 +- drivers/misc/Kconfig | 1 + drivers/misc/Makefile | 1 + drivers/misc/cxl/Kconfig | 25 + drivers/misc/cxl/Makefile | 4 + drivers/misc/cxl/base.c | 102 +++ drivers/misc/cxl/context.c | 169 +++++ drivers/misc/cxl/cxl-pci.c | 977 +++++++++++++++++++++++++ drivers/misc/cxl/cxl.h | 605 +++++++++++++++ drivers/misc/cxl/debugfs.c | 116 +++ drivers/misc/cxl/fault.c | 298 ++++++++ drivers/misc/cxl/file.c | 503 +++++++++++++ drivers/misc/cxl/irq.c | 405 ++++++++++ drivers/misc/cxl/main.c | 238 ++++++ drivers/misc/cxl/native.c | 649 ++++++++++++++++ drivers/misc/cxl/sysfs.c | 348 +++++++++ include/misc/cxl.h | 34 + include/uapi/Kbuild | 1 + include/uapi/misc/Kbuild | 2 + include/uapi/misc/cxl.h | 88 +++ 42 files changed, 5463 insertions(+), 171 deletions(-)
next reply other threads:[~2014-09-18 8:27 UTC|newest] Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-09-18 8:26 Michael Neuling [this message] 2014-09-18 8:26 ` [PATCH 0/15] POWER8 Coherent Accelerator device driver Michael Neuling 2014-09-18 8:26 ` [PATCH 01/15] powerpc/cell: Move spu_handle_mm_fault() out of cell platform Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-18 10:00 ` Jeremy Kerr 2014-09-18 10:00 ` Jeremy Kerr 2014-09-18 23:26 ` Michael Neuling 2014-09-18 23:26 ` Michael Neuling 2014-09-26 3:57 ` Anton Blanchard 2014-09-26 3:57 ` Anton Blanchard 2014-09-18 8:26 ` [PATCH 02/15] powerpc/cell: Move data segment faulting code " Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-18 10:27 ` Jeremy Kerr 2014-09-18 10:27 ` Jeremy Kerr 2014-09-18 23:45 ` Michael Neuling 2014-09-18 23:45 ` Michael Neuling 2014-09-26 4:05 ` Anton Blanchard 2014-09-26 4:05 ` Anton Blanchard 2014-09-26 11:19 ` Michael Neuling 2014-09-26 11:19 ` Michael Neuling 2014-09-29 8:30 ` Aneesh Kumar K.V 2014-09-29 8:30 ` Aneesh Kumar K.V 2014-09-30 4:40 ` Michael Neuling 2014-09-30 4:40 ` Michael Neuling 2014-09-18 8:26 ` [PATCH 03/15] powerpc/msi: Improve IRQ bitmap allocator Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-19 20:16 ` Scott Wood 2014-09-19 20:16 ` Scott Wood 2014-09-19 20:19 ` Scott Wood 2014-09-19 20:19 ` Scott Wood 2014-09-22 8:26 ` Laurentiu Tudor 2014-09-22 8:26 ` Laurentiu Tudor 2014-09-22 23:50 ` Scott Wood 2014-09-22 23:50 ` Scott Wood 2014-09-22 8:25 ` Laurentiu Tudor 2014-09-22 8:25 ` Laurentiu Tudor 2014-09-22 8:29 ` Laurentiu Tudor 2014-09-22 8:29 ` Laurentiu Tudor 2014-09-22 22:59 ` Michael Neuling 2014-09-22 22:59 ` Michael Neuling 2014-09-18 8:26 ` [PATCH 04/15] powerpc/mm: Export mmu_kernel_ssize and mmu_linear_psize Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-18 8:26 ` [PATCH 05/15] powerpc/powernv: Split out set MSI IRQ chip code Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-19 6:54 ` Gavin Shan 2014-09-19 6:54 ` Gavin Shan 2014-09-22 4:31 ` Michael Neuling 2014-09-22 4:31 ` Michael Neuling 2014-09-18 8:26 ` [PATCH 06/15] cxl: Add new header for call backs and structs Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-18 8:26 ` [PATCH 07/15] powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-19 7:09 ` Gavin Shan 2014-09-19 7:09 ` Gavin Shan 2014-09-22 5:01 ` Michael Neuling 2014-09-22 5:01 ` Michael Neuling 2014-09-18 8:26 ` [PATCH 08/15] powerpc/mm: Add new hash_page_mm() Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-29 8:50 ` Aneesh Kumar K.V 2014-09-29 8:50 ` Aneesh Kumar K.V [not found] ` <1412054407.1733.77.camel@ale.ozlabs.ibm.com> 2014-09-30 6:13 ` Michael Neuling 2014-09-30 6:13 ` Michael Neuling 2014-09-18 8:26 ` [PATCH 09/15] powerpc/opal: Add PHB to cxl mode call Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-26 4:35 ` Anton Blanchard 2014-09-26 4:35 ` Anton Blanchard 2014-09-18 8:26 ` [PATCH 10/15] powerpc/mm: Add hooks for cxl Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-26 4:33 ` Anton Blanchard 2014-09-26 4:33 ` Anton Blanchard 2014-09-26 11:33 ` Michael Neuling 2014-09-26 11:33 ` Michael Neuling 2014-09-26 13:24 ` Anton Blanchard 2014-09-26 13:24 ` Anton Blanchard 2014-09-29 9:10 ` Aneesh Kumar K.V 2014-09-29 9:10 ` Aneesh Kumar K.V 2014-09-18 8:26 ` [PATCH 11/15] cxl: Add base builtin support Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-18 8:26 ` [PATCH 12/15] cxl: Driver code for powernv PCIe based cards for userspace access Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-18 8:26 ` [PATCH 13/15] cxl: Userspace header file Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-18 8:26 ` [PATCH 14/15] cxl: Add driver to Kbuild and Makefiles Michael Neuling 2014-09-18 8:26 ` Michael Neuling 2014-09-18 8:27 ` [PATCH 15/15] cxl: Add documentation for userspace APIs Michael Neuling 2014-09-18 8:27 ` Michael Neuling
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