1. 19 Feb, 2019 2 commits
  2. 18 Feb, 2019 1 commit
    • Antonio Nino Diaz's avatar
      Disable processor Cycle Counting in Secure state · ed4fc6f0
      Antonio Nino Diaz authored
      
      
      In a system with ARMv8.5-PMU implemented:
      
      - If EL3 is using AArch32, setting MDCR_EL3.SCCD to 1 disables counting
        in Secure state in PMCCNTR.
      
      - If EL3 is using AArch64, setting SDCR.SCCD to 1 disables counting in
        Secure state in PMCCNTR_EL0.
      
      So far this effect has been achieved by setting PMCR_EL0.DP (in AArch64)
      or PMCR.DP (in AArch32) to 1 instead, but this isn't considered secure
      as any EL can change that value.
      
      Change-Id: I82cbb3e48f2e5a55c44d9c4445683c5881ef1f6f
      Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      ed4fc6f0
  3. 06 Feb, 2019 1 commit
  4. 11 Jan, 2019 1 commit
    • Antonio Nino Diaz's avatar
      xlat v2: Dynamically detect need for CnP bit · 2559b2c8
      Antonio Nino Diaz authored
      
      
      ARMv8.2-TTCNP is mandatory from ARMv8.2 onwards, but it can be implemented
      in CPUs that don't implement all mandatory 8.2 features (and so have to
      claim to be a lower version).
      
      This patch removes usage of the ARM_ARCH_AT_LEAST() macro and uses system
      ID registers to detect whether it is needed to set the bit or not.
      
      Change-Id: I7bcbf0c7c937590dfc2ca668cfd9267c50f7d52c
      Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      2559b2c8
  5. 04 Jan, 2019 2 commits
    • Antonio Nino Diaz's avatar
      Sanitise includes across codebase · 09d40e0e
      Antonio Nino Diaz authored
      Enforce full include path for includes. Deprecate old paths.
      
      The following folders inside include/lib have been left unchanged:
      
      - include/lib/cpus/${ARCH}
      - include/lib/el3_runtime/${ARCH}
      
      The reason for this change is that having a global namespace for
      includes isn't a good idea. It defeats one of the advantages of having
      folders and it introduces problems that are sometimes subtle (because
      you may not know the header you are actually including if there are two
      of them).
      
      For example, this patch had to be created because two headers were
      called the same way: e0ea0928 ("Fix gpio includes of mt8173 platform
      to avoid collision."). More recently, this patch has had similar
      problems: 46f9b2c3 ("drivers: add tzc380 support").
      
      This problem was introduced in commit 4ecca339
      
       ("Move include and
      source files to logical locations"). At that time, there weren't too
      many headers so it wasn't a real issue. However, time has shown that
      this creates problems.
      
      Platforms that want to preserve the way they include headers may add the
      removed paths to PLAT_INCLUDES, but this is discouraged.
      
      Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
      Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      09d40e0e
    • Antonio Nino Diaz's avatar
      Reorganize architecture-dependent header files · f5478ded
      Antonio Nino Diaz authored
      
      
      The architecture dependant header files in include/lib/${ARCH} and
      include/common/${ARCH} have been moved to /include/arch/${ARCH}.
      
      Change-Id: I96f30fdb80b191a51448ddf11b1d4a0624c03394
      Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      f5478ded