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  1. 06 Dec, 2017 3 commits
    • Antonio Nino Diaz's avatar
      fvp: Disable SYSTEM_SUSPEND when ARM_BL31_IN_DRAM · 7d44ac1e
      Antonio Nino Diaz authored 
      

After returning from SYSTEM_SUSPEND state, BL31 reconfigures the
TrustZone Controller during the boot sequence. If BL31 is placed in
TZC-secured DRAM, it will try to change the permissions of the memory it
is being executed from, causing an exception.

The solution is to disable SYSTEM_SUSPEND when the Trusted Firmware has
been compiled with ``ARM_BL31_IN_DRAM=1``.

Change-Id: I96dc50decaacd469327c6b591d07964726e58db4
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      7d44ac1e
    • Antonio Nino Diaz's avatar
      SPM: Remove ARM platforms header from SPM common code · 2633dfeb
      Antonio Nino Diaz authored 
      

Common code mustn't include ARM platforms headers.

Change-Id: Ib6e4f5a77c2d095e6e8c3ad89c89cb1959cd3043
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      2633dfeb
    • Leo Yan's avatar
      Hikey960: Change to use recommended power state id format · fdae60b6
      Leo Yan authored 
      

ARM Power State Coordination Interface (ARM DEN 0022D) chapter
6.5 "Recommended StateID Encoding" defines the state ID which can be
used by platforms. The recommended power states can be presented by
below values; and it divides into three fields, every field has 4 bits
to present power states corresponding to core level, cluster level and
system level.

  0: Run
  1: Standby
  2: Retention
  3: Powerdown

This commit changes to use upper recommended power states definition on
Hikey960; and changes the power state validate function to check the
power state passed from kernel side.
Signed-off-by: default avatarLeo Yan <leo.yan@linaro.org>
      fdae60b6
  3. 05 Dec, 2017 1 commit
  5. 02 Dec, 2017 1 commit
  7. 01 Dec, 2017 1 commit
  9. 30 Nov, 2017 1 commit
    • David Cunado's avatar
      Do not enable SVE on pre-v8.2 platforms · 3872fc2d
      David Cunado authored 
      

Pre-v8.2 platforms such as the Juno platform does not have
the Scalable Vector Extensions implemented and so the build
option ENABLE_SVE is set to zero.

This has a minor performance improvement with no functional
impact.

Change-Id: Ib072735db7a0247406f8b60e325b7e28b1e04ad1
Signed-off-by: default avatarDavid Cunado <david.cunado@arm.com>
      3872fc2d
  11. 29 Nov, 2017 4 commits
    • Soby Mathew's avatar
      Juno AArch32: Remove duplicate definition of bl2 platform API · a9f9b608
      Soby Mathew authored 
      

The bl2_early_platform_setup() and bl2_platform_setup() were
redefined for Juno AArch32 eventhough CSS platform layer had
same definition for them. The CSS definitions definitions were
previously restricted to EL3_PAYLOAD_BASE builds and this is now
modified to include the Juno AArch32 builds as well thus
allowing us to remove the duplicate definitions in Juno platform
layer.

Change-Id: Ibd1d8c1428cc1d51ac0ba90f19f5208ff3278ab5
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      a9f9b608
    • Soby Mathew's avatar
      ARM platforms: Fixup AArch32 builds · 5744e874
      Soby Mathew authored 
      

This patch fixes a couple of issues for AArch32 builds on ARM reference
platforms :

1. The arm_def.h previously defined the same BL32_BASE value for AArch64 and
   AArch32 build. Since BL31 is not present in AArch32 mode, this meant that
   the BL31 memory is empty when built for AArch32. Hence this patch allocates
   BL32 to the memory region occupied by BL31 for AArch32 builds.

   As a side-effect of this change, the ARM_TSP_RAM_LOCATION macro cannot
   be used to control the load address of BL32 in AArch32 mode which was
   never the intention of the macro anyway.

2. A static assert is added to sp_min linker script to check that the progbits
   are within the bounds expected when overlaid with other images.

3. Fix specifying `SPD` when building Juno for AArch32 mode. Due to the quirks
   involved when building Juno for AArch32 mode, the build option SPD needed to
   specifed. This patch corrects this and also updates the documentation in the
   user-guide.

4. Exclude BL31 from the build and FIP when building Juno for AArch32 mode. As
   a result the previous assumption that BL31 must be always present is removed
   and the certificates for BL31 is only generated if `NEED_BL31` is defined.

Change-Id: I1c39bbc0abd2be8fbe9f2dea2e9cb4e3e3e436a8
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      5744e874
    • Antonio Nino Diaz's avatar
      Replace magic numbers in linkerscripts by PAGE_SIZE · a2aedac2
      Antonio Nino Diaz authored 
      

When defining different sections in linker scripts it is needed to align
them to multiples of the page size. In most linker scripts this is done
by aligning to the hardcoded value 4096 instead of PAGE_SIZE.

This may be confusing when taking a look at all the codebase, as 4096
is used in some parts that aren't meant to be a multiple of the page
size.

Change-Id: I36c6f461c7782437a58d13d37ec8b822a1663ec1
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      a2aedac2
    • Dimitris Papastamos's avatar
      fvp: Enable the Activity Monitor Unit extensions by default · 3a6a9adc
      Dimitris Papastamos authored 
      

Change-Id: I96de88f44c36681ad8a70430af8e01016394bd14
Signed-off-by: default avatarDimitris Papastamos <dimitris.papastamos@arm.com>
      3a6a9adc
  13. 20 Nov, 2017 1 commit
    • Dimitris Papastamos's avatar
      Refactor Statistical Profiling Extensions implementation · 281a08cc
      Dimitris Papastamos authored 
      

Factor out SPE operations in a separate file.  Use the publish
subscribe framework to drain the SPE buffers before entering secure
world.  Additionally, enable SPE before entering normal world.

A side effect of this change is that the profiling buffers are now
only drained when a transition from normal world to secure world
happens.  Previously they were drained also on return from secure
world, which is unnecessary as SPE is not supported in S-EL1.

Change-Id: I17582c689b4b525770dbb6db098b3a0b5777b70a
Signed-off-by: default avatarDimitris Papastamos <dimitris.papastamos@arm.com>
      281a08cc
  15. 13 Nov, 2017 7 commits
  17. 09 Nov, 2017 1 commit
  19. 08 Nov, 2017 1 commit
  21. 06 Nov, 2017 2 commits
  23. 03 Nov, 2017 1 commit
    • Soby Mathew's avatar
      Fix PSCI STAT time stamp collection · bfc87a8d
      Soby Mathew authored 
      

This patch includes various fixes for PSCI STAT functionality
relating to timestamp collection:

1. The PSCI stat accounting for retention states for higher level
power domains were done outside the locks which could lead to
spurious values in some race conditions. This is moved inside
the locks. Also, the call to start the stat accounting was redundant
which is now removed.

2. The timestamp wrap-around case when calculating residency did
not cater for AArch32. This is now fixed.

3. In the warm boot path, `plat_psci_stat_accounting_stop()` was
getting invoked prior to population of target power states. This
is now corrected.

Change-Id: I851526455304fb74ff0a724f4d5318cd89e19589
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      bfc87a8d
  25. 02 Nov, 2017 1 commit
  27. 01 Nov, 2017 2 commits
  29. 26 Oct, 2017 1 commit
  31. 25 Oct, 2017 3 commits
  33. 24 Oct, 2017 2 commits
  35. 18 Oct, 2017 3 commits
  37. 17 Oct, 2017 3 commits
  39. 16 Oct, 2017 1 commit