1. 17 Jun, 2019 27 commits
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  7. 06 Jun, 2019 2 commits
    • Andrew F. Davis's avatar
      PSCI: Lookup list of parent nodes to lock only once · 74d27d00
      Andrew F. Davis authored
      When acquiring or releasing the power domain locks for a given CPU the
      parent nodes are looked up by walking the up the PD tree list on both the
      acquire and release path, only one set of lookups is needed. Fetch the
      parent nodes first and pass this list into both the acquire and release
      functions to avoid the double lookup.
      This also allows us to not have to do this lookup after coherency has
      been exited during the core power down sequence. The shared struct
      psci_cpu_pd_nodes is not placed in coherent memory like is done
      for psci_non_cpu_pd_nodes and doing so would negatively affect
      performance. With this patch we remove the need to have it in coherent
      memory by moving the access out of psci_release_pwr_domain_locks().
      Signed-off-by: default avatarAndrew F. Davis <afd@ti.com>
      Change-Id: I7b9cfa9d31148dea0f5e21091c8b45ef7fe4c4ab
    • John Tsichritzis's avatar