diff options
Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-cxl')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-cxl | 46 |
1 files changed, 30 insertions, 16 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/testing/sysfs-class-cxl index 7970e3713e70..cfc48a87706b 100644 --- a/Documentation/ABI/testing/sysfs-class-cxl +++ b/Documentation/ABI/testing/sysfs-class-cxl @@ -42,7 +42,7 @@ 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 + Decimal value of the size of the MMIO space that may be mmapped by userspace. Users: https://github.com/ibm-capi/libcxl @@ -72,11 +72,16 @@ Description: read/write when performing the START_WORK ioctl. Only applicable when running under hashed page table mmu. 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. + + ======================= ====================================== + 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. + ======================= ====================================== + Users: https://github.com/ibm-capi/libcxl What: /sys/class/cxl/<afu>/reset @@ -98,8 +103,8 @@ What: /sys/class/cxl/<afu>/api_version_compatible 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. + Decimal value of the lowest version of the userspace API + this kernel supports. Users: https://github.com/ibm-capi/libcxl @@ -150,7 +155,7 @@ 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 + Decimal value of the size of the MMIO space that may be mmapped by userspace. This includes all slave contexts space also. Users: https://github.com/ibm-capi/libcxl @@ -161,10 +166,11 @@ Description: read only Decimal value of the Per Process MMIO space length. Users: https://github.com/ibm-capi/libcxl -What: /sys/class/cxl/<afu>m/pp_mmio_off (not in a guest) +What: /sys/class/cxl/<afu>m/pp_mmio_off Date: September 2014 Contact: linuxppc-dev@lists.ozlabs.org Description: read only + (not in a guest) Decimal value of the Per Process MMIO space offset. Users: https://github.com/ibm-capi/libcxl @@ -185,33 +191,37 @@ Description: read only Identifies the revision level of the PSL. Users: https://github.com/ibm-capi/libcxl -What: /sys/class/cxl/<card>/base_image (not in a guest) +What: /sys/class/cxl/<card>/base_image Date: September 2014 Contact: linuxppc-dev@lists.ozlabs.org Description: read only + (not in a guest) 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. Users: https://github.com/ibm-capi/libcxl -What: /sys/class/cxl/<card>/image_loaded (not in a guest) +What: /sys/class/cxl/<card>/image_loaded Date: September 2014 Contact: linuxppc-dev@lists.ozlabs.org Description: read only + (not in a guest) Will return "user" or "factory" depending on the image loaded onto the card. Users: https://github.com/ibm-capi/libcxl -What: /sys/class/cxl/<card>/load_image_on_perst (not in a guest) +What: /sys/class/cxl/<card>/load_image_on_perst Date: December 2014 Contact: linuxppc-dev@lists.ozlabs.org Description: read/write + (not in a guest) Valid entries are "none", "user", and "factory". "none" means PERST will not cause image to be loaded to the card. A power cycle is required to load the image. "none" could be useful for debugging because the trace arrays are preserved. + "user" and "factory" means PERST will cause either the user or user or factory image to be loaded. Default is to reload on PERST whichever image the card has @@ -229,14 +239,18 @@ Description: write only contexts on the card AFUs. Users: https://github.com/ibm-capi/libcxl -What: /sys/class/cxl/<card>/perst_reloads_same_image (not in a guest) +What: /sys/class/cxl/<card>/perst_reloads_same_image Date: July 2015 Contact: linuxppc-dev@lists.ozlabs.org Description: read/write + (not in a guest) Trust that when an image is reloaded via PERST, it will not have changed. - 0 = don't trust, the image may be different (default) - 1 = trust that the image will not change. + + == ================================================= + 0 don't trust, the image may be different (default) + 1 trust that the image will not change. + == ================================================= Users: https://github.com/ibm-capi/libcxl What: /sys/class/cxl/<card>/psl_timebase_synced |