diff options
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. |