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  1. 30 Jul, 2018 1 commit
  3. 26 Jul, 2018 1 commit
  5. 19 Jul, 2018 1 commit
    • Roberto Vargas's avatar
      cci: Wait before reading status register · ae551a13
      Roberto Vargas authored 
      

The functions cci_enable_snoop_dvm_reqs and cci_disable_snoop_dvm_reqs write
in the SNOOP_CTRL_REGISTER of the slave interface and it polls the status
register to be sure that the operation is finished before leaving the
functions. If the write in SNOOP_CTRL_REGISTER is reordered after the first
read in the status register then these functions can finish before
enabling/disabling snoops and DVM messages.

The CCI500 TRM specifies:

	Wait for the completion of the write to the Snoop Control Register
	before testing the change_pending bit.

Change-Id: Idc7685963f412be1c16bcd3c6e3cca826e2fdf38
Signed-off-by: default avatarRoberto Vargas <roberto.vargas@arm.com>
      ae551a13
  7. 12 Jun, 2018 2 commits
    • Daniel Boulby's avatar
      Fix MISRA Rule 5.3 Part 2 · 896a5902
      Daniel Boulby authored 
      

Use a _ prefix for Macro arguments to prevent that argument from
hiding variables of the same name in the outer scope

Rule 5.3: An identifier declared in an inner scope shall not
          hide an identifier declared in an outer scope

Fixed For:
    make LOG_LEVEL=50 PLAT=fvp

Change-Id: I67b6b05cbad4aeca65ce52981b4679b340604708
Signed-off-by: default avatarDaniel Boulby <daniel.boulby@arm.com>
      896a5902
    • Daniel Boulby's avatar
      Fix MISRA Rule 5.1 · 87d3aacc
      Daniel Boulby authored 
      

Rule 5.1: External identifiers shall be distinct

Some of the identifier names in the GICv3 driver were so long that the
first 31 characters were identical. This patch shortens these names to
make sure they are different.

Fixed for:
    LOG_LEVEL=50 PLAT=fvp

Change-Id: Iecd551e3a015d144716b87b42c83dd3ab8c34d90
Signed-off-by: default avatarDaniel Boulby <daniel.boulby@arm.com>
      87d3aacc
  9. 27 Apr, 2018 1 commit
  11. 09 Apr, 2018 1 commit
  13. 03 Apr, 2018 2 commits
    • Andre Przywara's avatar
      gicv3: Fix support for systems without secure interrupts · 205cf6e7
      Andre Przywara authored 
      

Accessing the interrupt_props array only happens inside a loop over
interrupt_props_num, so the GICv3 driver can cope with no secure
interrupts. This allows us to relax the asserts that insists on
a non-NULL interrupt_props pointer and at least one secure interrupt.
This enables GICv3 platforms which have no need for a secure interrupt.

This only covers the non-deprecated code paths.

Change-Id: I49db291906512f56af065772f69acb281dfbdcfb
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      205cf6e7
    • Samuel Holland's avatar
      gicv2: Fix support for systems without secure interrupts · 9d6d800d
      Samuel Holland authored 
      

Accessing the interrupt_props array only happens inside a loop over
interrupt_props_num, so the GICv2 driver can cope with no secure
interrupts. As in fact we have already some asserts in place that
respect that, lets change the final place where we insist on a non-NULL
pointer to relax that.
This enables GICv2 platforms which have no need for a secure interrupt.

This only covers the non-deprecated code paths.

Also we remove a now redundant assert().

Change-Id: Id100ea978643d8558335ad28649d55743fe9bd4c
Signed-off-by: default avatarSamuel Holland <samuel@sholland.org>
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      9d6d800d
  15. 26 Mar, 2018 2 commits
  17. 05 Mar, 2018 1 commit
  19. 01 Mar, 2018 1 commit
    • Dan Handley's avatar
      Emit warnings when using deprecated GIC init · dcf01a0a
      Dan Handley authored 
      

Emit runtime warnings when intializing the GIC drivers using the
deprecated method of defining integer interrupt arrays in the GIC driver
data structures; interrupt_prop_t arrays should be used instead. This
helps platforms detect that they have migration work to do. Previously,
no warning was emitted in this case. This affects both the GICv2 and GICv3
drivers.

Also use the __deprecated attribute to emit a build time warning if these
deprecated fields are used. These warnings are suppressed in the GIC
driver compatibility functions but will be visible if platforms use them.

Change-Id: I6b6b8f6c3b4920c448b6dcb82fc18442cfdf6c7a
Signed-off-by: default avatarDan Handley <dan.handley@arm.com>
      dcf01a0a
  21. 28 Feb, 2018 2 commits
  23. 21 Feb, 2018 1 commit
  25. 14 Feb, 2018 1 commit
    • Antonio Nino Diaz's avatar
      Remove URLs from comments · fb1198b1
      Antonio Nino Diaz authored 
      

This fixes all defects according to MISRA Rule 3.1: "The character
sequences /* and // shall not be used within a comment". This affects
all URLs in comments, so they have been removed:

- The link in `sdei_state.c` can also be found in the documentation file
  `docs/sdei.rst`.

- The bug that the file `io_fip.c` talks about doesn't affect the
  currently supported version of GCC, so it doesn't make sense to keep
  the comment. Note that the version of GCC officially supported is the
  one that comes with Linaro Release 17.10, which is GCC 6.2.

- The link in `tzc400.c` was broken, and it didn't correctly direct to
  the Technical Reference Manual it should. The link has been replaced
  by the title of the document, which is more convenient when looking
  for the document.

Change-Id: I89f60c25f635fd4c008a5d3a14028f814c147bbe
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      fb1198b1
  27. 24 Jan, 2018 1 commit
  29. 19 Jan, 2018 1 commit
  31. 13 Nov, 2017 2 commits
    • Jeenu Viswambharan's avatar
      GIC: Fix Group 0 enabling · 385f1dbb
      Jeenu Viswambharan authored 
      

At present, the GIC drivers enable Group 0 interrupts only if there are
Secure SPIs listed in the interrupt properties/list. This means that,
even if there are Group 0 SGIs/PPIs configured, the group remained
disabled in the absence of a Group 0 SPI.

Modify both GICv2 and GICv3 SGI/PPI configuration to enable Group 0 when
corresponding SGIs/PPIs are present.

Change-Id: Id123e8aaee0c22b476eebe3800340906d83bbc6d
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      385f1dbb
    • Jeenu Viswambharan's avatar
      GICv2: Fix populating PE target data · 058efeef
      Jeenu Viswambharan authored 
      

This patch brings in the following fixes:

  - The per-PE target data initialized during power up needs to be
    flushed so as to be visible to other PEs.

  - Setup per-PE target data for the primary PE as well. At present,
    this was only setup for secondary PEs when they were powered on.

Change-Id: Ibe3a57c14864e37b2326dd7ab321a5c7bf80e8af
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      058efeef
  33. 08 Nov, 2017 1 commit
    • Etienne Carriere's avatar
      ARMv7: GICv2 driver can manage GICv1 with security extension · 64deed19
      Etienne Carriere authored 
      

Some SoCs integrate a GIC in version 1 that is currently not supported
by the trusted firmware. This change hijacks GICv2 driver to handle the
GICv1 as GICv1 is compatible enough with GICv2 as far as the platform
does not attempt to play with virtualization support or some GICv2
specific power features.

Note that current trusted firmware does not use these GICv2 features
that are not available in GICv1 Security Extension.

Change-Id: Ic2cb3055f1319a83455571d6d918661da583f179
Signed-off-by: default avatarEtienne Carriere <etienne.carriere@linaro.org>
      64deed19
  35. 16 Oct, 2017 12 commits
  37. 06 Oct, 2017 1 commit
  39. 05 Oct, 2017 4 commits
    • Soby Mathew's avatar
      GICv3: ITS architectural save and restore helpers · b258278e
      Soby Mathew authored 
      

This patch adds functions to save and restore GICv3 ITS registers during
system suspend. Please note that the power management of GIC ITS is
implementation defined. These functions only implements the
architectural part of the ITS power management and they do not restore
memory structures or register content required to support ITS. Even if
the ITS implementation stores structures in memory, an implementation
defined power down sequence is likely to be required to flush some
internal ITS caches to memory. If such implementation defined sequence
is not followed, the platform must ensure that the ITS is not power
gated during system suspend.

Change-Id: I5f31e5541975aa7dcaab69b0b7f67583c0e27678
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
Signed-off-by: default avatarDouglas Raillard <douglas.raillard@arm.com>
      b258278e
    • Soby Mathew's avatar
      GICv3: add functions for save and restore · ebf1ca10
      Soby Mathew authored 
      

During system suspend, the GICv3 Distributor and Redistributor context
can be lost due to power gating of the system power domain. This means
that the GICv3 context needs to be saved prior to system suspend and
restored on wakeup. Currently the consensus is that the Firmware should
be in charge of this. See tf-issues#464 for more details.

This patch introduces helper APIs in the GICv3 driver to save and
restore the Distributor and Redistributor contexts. The GICv3 ITS
context is not considered in this patch because the specification says
that the details of ITS power management is implementation-defined.
These APIs are expected to be appropriately invoked by the platform
layer during system suspend.

Fixes ARM-software/tf-issues#464

Change-Id: Iebb9c6770ab8c4d522546f161fa402d2fe02ec00
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
Signed-off-by: default avatarDouglas Raillard <douglas.raillard@arm.com>
      ebf1ca10
    • Douglas Raillard's avatar
      GICv3: turn some macros into inline functions · a64b4e62
      Douglas Raillard authored 
      

Tidy up the code a bit by turning some macros into inline functions
which allows to remove the do/while(0) idiom and backslashes at the end
of the line.

Change-Id: Ie41a4ea4a4da507f7b925247b53e85019101d717
Signed-off-by: default avatarDouglas Raillard <douglas.raillard@arm.com>
      a64b4e62
    • Douglas Raillard's avatar
      GICv3: Fix gic600.c indentation · b50bdcea
      Douglas Raillard authored 
      

Reindent the file using tabs as the mix of spaces and tabs confuses some
editors and leads them to use spaces instead of tabs for new code
although the coding style mandates tabs.

Change-Id: I87fa4a5d368a048340054b9b3622325f3f7befba
Signed-off-by: default avatarDouglas Raillard <douglas.raillard@arm.com>
      b50bdcea
  41. 21 Sep, 2017 1 commit
    • Antonio Nino Diaz's avatar
      Fix type of `unsigned long` constants · e47ac1fd
      Antonio Nino Diaz authored 
      

The type `unsigned long` is 32 bit wide in AArch32, but 64 bit wide in
AArch64. This is inconsistent and that's why we avoid using it as per
the Coding Guidelines. This patch changes all `UL` occurrences to `U`
or `ULL` depending on the context so that the size of the constant is
clear.

This problem affected the macro `BIT(nr)`. As long as this macro is used
to fill fields of registers, that's not a problem, since all registers
are 32 bit wide in AArch32 and 64 bit wide in AArch64. However, if the
macro is used to fill the fields of a 64-bit integer, it won't be able
to set the upper 32 bits in AArch32.

By changing the type of this macro to `unsigned long long` the behaviour
is always the same regardless of the architecture, as this type is
64-bit wide in both cases.

Some Tegra platform files have been modified by this patch.

Change-Id: I918264c03e7d691a931f0d1018df25a2796cc221
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      e47ac1fd