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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-11 20:34:00 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-11 20:34:00 -0400 |
commit | fd9879b9bb3258ebc27a4cc6d2d29f528f71901f (patch) | |
tree | 48b68994f5e8083aafe116533e8143cb2bf30c85 /Documentation/ABI | |
parent | 81ae31d78239318610d7c2acb3e2610d622a5aa4 (diff) | |
parent | d53ba6b3bba33432cc37b7101a86f8f3392c46e7 (diff) | |
download | linux-fd9879b9bb3258ebc27a4cc6d2d29f528f71901f.tar.gz linux-fd9879b9bb3258ebc27a4cc6d2d29f528f71901f.tar.bz2 linux-fd9879b9bb3258ebc27a4cc6d2d29f528f71901f.zip |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux
Pull powerpc updates from Michael Ellerman:
"Here's a first pull request for powerpc updates for 3.18.
The bulk of the additions are for the "cxl" driver, for IBM's Coherent
Accelerator Processor Interface (CAPI). Most of it's in drivers/misc,
which Greg & Arnd maintain, Greg said he was happy for us to take it
through our tree.
There's the usual minor cleanups and fixes, including a bit of noise
in drivers from some of those. A bunch of updates to our EEH code,
which has been getting more testing. Several nice speedups from
Anton, including 20% in clear_page().
And a bunch of updates for freescale from Scott"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (130 commits)
cxl: Fix afu_read() not doing finish_wait() on signal or non-blocking
cxl: Add documentation for userspace APIs
cxl: Add driver to Kbuild and Makefiles
cxl: Add userspace header file
cxl: Driver code for powernv PCIe based cards for userspace access
cxl: Add base builtin support
powerpc/mm: Add hooks for cxl
powerpc/opal: Add PHB to cxl mode call
powerpc/mm: Add new hash_page_mm()
powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts
cxl: Add new header for call backs and structs
powerpc/powernv: Split out set MSI IRQ chip code
powerpc/mm: Export mmu_kernel_ssize and mmu_linear_psize
powerpc/msi: Improve IRQ bitmap allocator
powerpc/cell: Make spu_flush_all_slbs() generic
powerpc/cell: Move data segment faulting code out of cell platform
powerpc/cell: Move spu_handle_mm_fault() out of cell platform
powerpc/pseries: Use new defines when calling H_SET_MODE
powerpc: Update contact info in Documentation files
powerpc/perf/hv-24x7: Simplify catalog_read()
...
Diffstat (limited to 'Documentation/ABI')
3 files changed, 138 insertions, 9 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 index e78ee798d7bd..32f3f5f8bba2 100644 --- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 @@ -1,6 +1,6 @@ What: /sys/bus/event_source/devices/hv_24x7/interface/catalog Date: February 2014 -Contact: Cody P Schafer <cody@linux.vnet.ibm.com> +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> Description: Provides access to the binary "24x7 catalog" provided by the hypervisor on POWER7 and 8 systems. This catalog lists events @@ -10,14 +10,14 @@ Description: What: /sys/bus/event_source/devices/hv_24x7/interface/catalog_length Date: February 2014 -Contact: Cody P Schafer <cody@linux.vnet.ibm.com> +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> Description: A number equal to the length in bytes of the catalog. This is also extractable from the provided binary "catalog" sysfs entry. What: /sys/bus/event_source/devices/hv_24x7/interface/catalog_version Date: February 2014 -Contact: Cody P Schafer <cody@linux.vnet.ibm.com> +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> Description: Exposes the "version" field of the 24x7 catalog. This is also extractable from the provided binary "catalog" sysfs entry. diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci index 3fa58c23f13b..3ca4e554d2f9 100644 --- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci @@ -1,6 +1,6 @@ What: /sys/bus/event_source/devices/hv_gpci/interface/collect_privileged Date: February 2014 -Contact: Cody P Schafer <cody@linux.vnet.ibm.com> +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> Description: '0' if the hypervisor is configured to forbid access to event counters being accumulated by other guests and to physical @@ -9,35 +9,35 @@ Description: What: /sys/bus/event_source/devices/hv_gpci/interface/ga Date: February 2014 -Contact: Cody P Schafer <cody@linux.vnet.ibm.com> +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> Description: 0 or 1. Indicates whether we have access to "GA" events (listed in arch/powerpc/perf/hv-gpci.h). What: /sys/bus/event_source/devices/hv_gpci/interface/expanded Date: February 2014 -Contact: Cody P Schafer <cody@linux.vnet.ibm.com> +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> Description: 0 or 1. Indicates whether we have access to "EXPANDED" events (listed in arch/powerpc/perf/hv-gpci.h). What: /sys/bus/event_source/devices/hv_gpci/interface/lab Date: February 2014 -Contact: Cody P Schafer <cody@linux.vnet.ibm.com> +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> Description: 0 or 1. Indicates whether we have access to "LAB" events (listed in arch/powerpc/perf/hv-gpci.h). What: /sys/bus/event_source/devices/hv_gpci/interface/version Date: February 2014 -Contact: Cody P Schafer <cody@linux.vnet.ibm.com> +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> Description: A number indicating the version of the gpci interface that the hypervisor reports supporting. What: /sys/bus/event_source/devices/hv_gpci/interface/kernel_version Date: February 2014 -Contact: Cody P Schafer <cody@linux.vnet.ibm.com> +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> Description: A number indicating the latest version of the gpci interface that the kernel is aware of. diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/testing/sysfs-class-cxl new file mode 100644 index 000000000000..554405ec1955 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-cxl @@ -0,0 +1,129 @@ +Slave contexts (eg. /sys/class/cxl/afu0.0s): + +What: /sys/class/cxl/<afu>/irqs_max +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read/write + Decimal value of maximum number of interrupts that can be + requested by userspace. The default on probe is the maximum + that hardware can support (eg. 2037). Write values will limit + userspace applications to that many userspace interrupts. Must + be >= irqs_min. + +What: /sys/class/cxl/<afu>/irqs_min +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Decimal value of the minimum number of interrupts that + userspace must request on a CXL_START_WORK ioctl. Userspace may + omit the num_interrupts field in the START_WORK IOCTL to get + this minimum automatically. + +What: /sys/class/cxl/<afu>/mmio_size +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Decimal value of the size of the MMIO space that may be mmaped + by userspace. + +What: /sys/class/cxl/<afu>/modes_supported +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + List of the modes this AFU supports. One per line. + Valid entries are: "dedicated_process" and "afu_directed" + +What: /sys/class/cxl/<afu>/mode +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read/write + The current mode the AFU is using. Will be one of the modes + given in modes_supported. Writing will change the mode + provided that no user contexts are attached. + + +What: /sys/class/cxl/<afu>/prefault_mode +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read/write + Set the mode for prefaulting in segments into the segment table + when performing the START_WORK ioctl. Possible values: + none: No prefaulting (default) + work_element_descriptor: Treat the work element + descriptor as an effective address and + prefault what it points to. + all: all segments process calling START_WORK maps. + +What: /sys/class/cxl/<afu>/reset +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: write only + Writing 1 here will reset the AFU provided there are not + contexts active on the AFU. + +What: /sys/class/cxl/<afu>/api_version +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Decimal value of the current version of the kernel/user API. + +What: /sys/class/cxl/<afu>/api_version_com +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Decimal value of the the lowest version of the userspace API + this this kernel supports. + + + +Master contexts (eg. /sys/class/cxl/afu0.0m) + +What: /sys/class/cxl/<afu>m/mmio_size +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Decimal value of the size of the MMIO space that may be mmaped + by userspace. This includes all slave contexts space also. + +What: /sys/class/cxl/<afu>m/pp_mmio_len +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Decimal value of the Per Process MMIO space length. + +What: /sys/class/cxl/<afu>m/pp_mmio_off +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Decimal value of the Per Process MMIO space offset. + + +Card info (eg. /sys/class/cxl/card0) + +What: /sys/class/cxl/<card>/caia_version +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Identifies the CAIA Version the card implements. + +What: /sys/class/cxl/<card>/psl_version +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Identifies the revision level of the PSL. + +What: /sys/class/cxl/<card>/base_image +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Identifies the revision level of the base image for devices + that support loadable PSLs. For FPGAs this field identifies + the image contained in the on-adapter flash which is loaded + during the initial program load. + +What: /sys/class/cxl/<card>/image_loaded +Date: September 2014 +Contact: linuxppc-dev@lists.ozlabs.org +Description: read only + Will return "user" or "factory" depending on the image loaded + onto the card. |