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  1. 05 Feb, 2019 1 commit
  3. 31 Jan, 2019 1 commit
    • Stephen Wolfe's avatar
      spd: trusty: pass max affinity level to Trusty · 1ffaaec9
      Stephen Wolfe authored 
      

During System Suspend, the entire system loses its state. To allow Trusty
to save/restore its context and allow its TAs to participate in the suspend
process, it needs to look at the max affinity level being suspended. This
patch passes the max affinity level to Trusty to enable to do so.

Change-Id: If7838dae10c3f5a694baedb15ec56fbad41f2b36
Signed-off-by: default avatarVarun Wadekar <vwadekar@nvidia.com>
      1ffaaec9
  5. 24 Jan, 2019 1 commit
  7. 23 Jan, 2019 1 commit
    • Anthony Zhou's avatar
      spd: trusty : fix defects flagged by MISRA scan · 591054a3
      Anthony Zhou authored 
      

Main Fixes:

Use int32_t replace int [Rule 4.6]

Added explicit casts (e.g. 0U) to integers in order for them to be
  compatible with whatever operation they're used in [Rule 10.1]

Force operands of an operator to the same type category [Rule 10.4]

Fixed if statement conditional to be essentially boolean [Rule 14.4]

Voided non c-library functions whose return types are not used
[Rule 17.7]

Change-Id: I98caa330c371757eb2dfb9438448cb99115ed907
Signed-off-by: default avatarAnthony Zhou <anzhou@nvidia.com>
      591054a3
  9. 15 Jan, 2019 1 commit
    • Paul Beesley's avatar
      Correct typographical errors · 8aabea33
      Paul Beesley authored 
      

Corrects typos in core code, documentation files, drivers, Arm
platforms and services.

None of the corrections affect code; changes are limited to comments
and other documentation.

Change-Id: I5c1027b06ef149864f315ccc0ea473e2a16bfd1d
Signed-off-by: default avatarPaul Beesley <paul.beesley@arm.com>
      8aabea33
  11. 04 Jan, 2019 1 commit
    • 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
  13. 08 Nov, 2018 1 commit
    • Antonio Nino Diaz's avatar
      Standardise header guards across codebase · c3cf06f1
      Antonio Nino Diaz authored 
      

All identifiers, regardless of use, that start with two underscores are
reserved. This means they can't be used in header guards.

The style that this project is now to use the full name of the file in
capital letters followed by 'H'. For example, for a file called
"uart_example.h", the header guard is UART_EXAMPLE_H.

The exceptions are files that are imported from other projects:

- CryptoCell driver
- dt-bindings folders
- zlib headers

Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      c3cf06f1
  15. 18 Sep, 2018 1 commit
  17. 22 Aug, 2018 1 commit
  19. 10 Aug, 2018 1 commit
  21. 01 Aug, 2018 1 commit
  23. 27 Apr, 2018 2 commits
    • Masahiro Yamada's avatar
      types: use int-ll64 for both aarch32 and aarch64 · 0a2d5b43
      Masahiro Yamada authored 
      Since commit 031dbb12

 ("AArch32: Add essential Arch helpers"),
it is difficult to use consistent format strings for printf() family
between aarch32 and aarch64.

For example, uint64_t is defined as 'unsigned long long' for aarch32
and as 'unsigned long' for aarch64.  Likewise, uintptr_t is defined
as 'unsigned int' for aarch32, and as 'unsigned long' for aarch64.

A problem typically arises when you use printf() in common code.

One solution could be, to cast the arguments to a type long enough
for both architectures.  For example, if 'val' is uint64_t type,
like this:

  printf("val = %llx\n", (unsigned long long)val);

Or, somebody may suggest to use a macro provided by <inttypes.h>,
like this:

  printf("val = %" PRIx64 "\n", val);

But, both would make the code ugly.

The solution adopted in Linux kernel is to use the same typedefs for
all architectures.  The fixed integer types in the kernel-space have
been unified into int-ll64, like follows:

    typedef signed char           int8_t;
    typedef unsigned char         uint8_t;

    typedef signed short          int16_t;
    typedef unsigned short        uint16_t;

    typedef signed int            int32_t;
    typedef unsigned int          uint32_t;

    typedef signed long long      int64_t;
    typedef unsigned long long    uint64_t;

[ Linux commit: 0c79a8e29b5fcbcbfd611daf9d500cfad8370fcf ]

This gets along with the codebase shared between 32 bit and 64 bit,
with the data model called ILP32, LP64, respectively.

The width for primitive types is defined as follows:

                   ILP32           LP64
    int            32              32
    long           32              64
    long long      64              64
    pointer        32              64

'long long' is 64 bit for both, so it is used for defining uint64_t.
'long' has the same width as pointer, so for uintptr_t.

We still need an ifdef conditional for (s)size_t.

All 64 bit architectures use "unsigned long" size_t, and most 32 bit
architectures use "unsigned int" size_t.  H8/300, S/390 are known as
exceptions; they use "unsigned long" size_t despite their architecture
is 32 bit.

One idea for simplification might be to define size_t as 'unsigned long'
across architectures, then forbid the use of "%z" string format.
However, this would cause a distortion between size_t and sizeof()
operator.  We have unknowledge about the native type of sizeof(), so
we need a guess of it anyway.  I want the following formula to always
return 1:

  __builtin_types_compatible_p(size_t, typeof(sizeof(int)))

Fortunately, ARM is probably a majority case.  As far as I know, all
32 bit ARM compilers use "unsigned int" size_t.
Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      0a2d5b43
    • Masahiro Yamada's avatar
      Fix pointer type mismatch of handlers · 57d1e5fa
      Masahiro Yamada authored 
      Commit 4c0d0390

 ("Rework type usage in Trusted Firmware") changed
the type usage in struct declarations, but did not touch the definition
side.  Fix the type mismatch.
Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      57d1e5fa
  25. 21 Apr, 2018 1 commit
  27. 21 Mar, 2018 1 commit
  29. 02 Mar, 2018 1 commit
  31. 01 Mar, 2018 3 commits
  33. 22 Feb, 2018 1 commit
  35. 01 Feb, 2018 1 commit
  37. 25 Jan, 2018 5 commits
  39. 19 Sep, 2017 1 commit
    • Aijun Sun's avatar
      trusty: save/restore FPU registers in world switch · ab609e1a
      Aijun Sun authored 
      

Currently, Trusty OS/LK implemented FPU context switch in internal
thread switch but does not implement the proper mechanism for world
switch. This commit just simply saves/restores FPU registes in world
switch to prevent FPU context from being currupted when Trusty OS uses
VFP in its applications.

It should be noted that the macro *CTX_INCLUDE_FPREGS* must be defined
in trusty.mk if Trusty OS uses VFP
Signed-off-by: default avatarAijun Sun <aijun.sun@spreadtrum.com>
      ab609e1a
  41. 12 Jul, 2017 1 commit
    • Isla Mitchell's avatar
      Fix order of #includes · 2a4b4b71
      Isla Mitchell authored 
      

This fix modifies the order of system includes to meet the ARM TF coding
standard. There are some exceptions in order to retain header groupings,
minimise changes to imported headers, and where there are headers within
the #if and #ifndef statements.

Change-Id: I65085a142ba6a83792b26efb47df1329153f1624
Signed-off-by: default avatarIsla Mitchell <isla.mitchell@arm.com>
      2a4b4b71
  43. 04 May, 2017 1 commit
  45. 03 May, 2017 1 commit
  47. 06 Mar, 2017 6 commits
  49. 23 Feb, 2017 1 commit
  51. 26 Jan, 2017 1 commit
    • David Cunado's avatar
      Resolve build errors flagged by GCC 6.2 · 9edac047
      David Cunado authored 
      

With GCC 6.2 compiler, more C undefined behaviour is being flagged as
warnings, which result in build errors in ARM TF build.

The specific issue that this patch resolves is the use of (1 << 31),
which is predominantly used in case statements, where 1 is represented
as a signed int. When shifted to msb the behaviour is undefined.

The resolution is to specify 1 as an unsigned int using a convenience
macro ULL(). A duplicate macro MAKE_ULL() is replaced.

Fixes ARM-software/tf-issues#438

Change-Id: I08e3053bbcf4c022ee2be33a75bd0056da4073e1
Signed-off-by: default avatarDavid Cunado <david.cunado@arm.com>
      9edac047
  53. 30 Nov, 2016 1 commit
  55. 23 Nov, 2016 1 commit
    • Sandrine Bailleux's avatar
      Fix a coding style issue in trusty.c · 48c1c39f
      Sandrine Bailleux authored 
      

This patch fixes the following coding style error reported
by the checkpatch.pl script:

  Bad function definition - void el3_exit() should probably
  be void el3_exit(void)

There is another one but it's a false positive so there's no
point in fixing it:

  space prohibited after that '&' (ctx:WxW)
  +#define SMC_NR(entity, fn, fastcall, smc64) ((((fastcall) & 0x1) << 31) | \
                                                            ^
Change-Id: I34de0337c7216dabd16395879f13845a60ee6df0
Signed-off-by: default avatarSandrine Bailleux <sandrine.bailleux@arm.com>
      48c1c39f