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  1. 27 Apr, 2018 3 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:

   ...
      0a2d5b43
    • Masahiro Yamada's avatar
      arch_helpers: use u_register_t for register read/write · 8f4dbaab
      Masahiro Yamada authored 
      
u_register_t is preferred rather than uint64_t.  This is more
consistent with the aarch32 implementation.
Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      8f4dbaab
    • 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
  3. 21 Apr, 2018 1 commit
  5. 18 Apr, 2018 3 commits
  7. 17 Apr, 2018 2 commits
  9. 16 Apr, 2018 3 commits
  11. 13 Apr, 2018 10 commits
  13. 12 Apr, 2018 4 commits
  15. 11 Apr, 2018 5 commits
  17. 10 Apr, 2018 8 commits
  19. 09 Apr, 2018 1 commit
    • Varun Wadekar's avatar
      lib: xlat_tables_v2: reduce time required to add a mmap region · 0ed32232
      Varun Wadekar authored 
      
The last entry in the mapping table is not necessarily the same as the
end of the table. This patch loops through the table to find the last
entry marker, on every new mmap addition. The memove operation then
has to only move the memory between current entry and the last entry.
For platforms that arrange their MMIO map properly, this opearation
turns out to be a NOP.

The previous implementation added significant overhead per mmap
addition as the memmove operation always moved the difference between
the current mmap entry and the end of the table.

Tested on Tegra platforms and this new approach improves the memory
mapping time by ~75%, thus significantly reducing boot time on some
platforms.

Change-Id: Ie3478fa5942379282ef58bee2085da799137e2ca
Signed-off-by: default avatarVarun Wadekar <vwadekar@nvidia.com>
      0ed32232