Currently lparstat reports which shows since LPAR boot are wrong for
some fields. There is a need for storing the PIC(Pool Idle Count) at
boot for accurate reporting. PATCH 1 Does that.

While there, it was noticed that hcall return value is long and both
h_get_ppp and h_get_mpp could set the uninitialized values if the hcall
fails. PATCH 2 does that.

v1 -> v2:
- Nathan pointed out the issues surrounding the h_pic call. Addressed
those.
- Added a pr_debug if h_pic fails during lparcfg_init
- If h_pic fails while reading lparcfg, related files are not exported.
- Added failure checks for h_get_mpp, h_get_ppp calls as well.

v1: https://lore.kernel.org/all/20240405101340.149171-1-sshegde@linux.ibm.com/ (local)

Shrikanth Hegde (2):
  powerpc/pseries: Add pool idle time at LPAR boot
  powerpc/pseries: Add fail related checks for h_get_mpp and h_get_ppp

 arch/powerpc/include/asm/hvcall.h        |  2 +-
 arch/powerpc/platforms/pseries/lpar.c    |  6 ++--
 arch/powerpc/platforms/pseries/lparcfg.c | 45 +++++++++++++++++-------
 3 files changed, 37 insertions(+), 16 deletions(-)

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2.39.3