This series does few improvements to SBI HSM documentation and adds
SBI HSM suspend call.

Changes since v3:
 - Minor typo fixes in platform-coordinated and OS-initiated
approaches
 - Made suspend_type paramter as uint32_t for SBI HSM suspend
function

Changes since v2:
 - Added detailed information about platform-coordinated and
   OS-initiated approaches for utilizing low-power states at
   higher topology groups (namely cores, clusters, nodes, etc)

Changes since v1:
 - Split the original patch into two patches
 - Addressed nit comments from Atish

Anup Patel (2):
  Improve HSM documentation for addition of HSM suspend function
  Add HSM hart suspend function

 riscv-sbi-hsm.ditaa |  40 ++++---
 riscv-sbi-hsm.png   | Bin 16836 -> 31264 bytes
 riscv-sbi-theme.yml |   3 +
 riscv-sbi.adoc      | 257 ++++++++++++++++++++++++++++++++++--------
--
 4 files changed, 228 insertions(+), 72 deletions(-)