libpeci: Add 64-bit MMIO Read variable

MMIO Reads can support 8 byte reads but the variable used is only 4
bytes.  Use new 8 byte variable.

Tested: Can now read 8 byte variables
Before:
   >> peci_cmds RdEndpointConfigMMIO <register info> -s 8
   cc:0x40 0x0000000001100100
After:
   >> peci_cmds RdEndpointConfigMMIO <register info> -s 8
   cc:0x40 0x00ff000001100100

Change-Id: Iac4f8b462e2a391188b4bcb749a49e3792fb9af3
Signed-off-by: Matt Simmering <matthew.simmering@intel.com>
1 file changed
tree: b0ae664c06c5ae65e4fec97c1ecbd063d2a05dce
  1. linux/
  2. service_files/
  3. .clang-format
  4. .clang-format-ignore
  5. CMakeLists.txt
  6. dbus_raw_peci.cpp
  7. LICENSE
  8. OWNERS
  9. peci.c
  10. peci.h
  11. peci.pc.in
  12. peci_cmds.c
  13. README.md
README.md

libpeci

libpeci is a library that provides various APIs to interface with the IOCTLs provided by the PECI driver in the OpenBMC kernel. Currently available here:

https://github.com/openbmc/linux/blob/dev-5.4/include/uapi/linux/peci-ioctl.h

peci_cmds

This repo also includes a peci_cmds command-line utility with functions that map to the libpeci APIs. It can be used to test PECI functionality across the library, driver, and hardware.

dbus_raw_peci

This repo also includes dbus_raw_peci which provides a raw-peci daemon that exposes a raw PECI interface that is accessible over D-Bus. It can be used when an application needs to send a raw PECI command without loading the full PECI library.