1. 18 Jan, 2017 2 commits
    • Masahiro Yamada's avatar
      Move BL_COHERENT_RAM_BASE/END defines to common_def.h · 47497053
      Masahiro Yamada authored
      
      
      We have lots of duplicated defines (and comment blocks too).
      Move them to include/plat/common/common_def.h.
      
      While we are here, suffix the end address with _END instead of
      _LIMIT.  The _END is a better fit to indicate the linker-derived
      real end address.
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      47497053
    • Masahiro Yamada's avatar
      Use *_END instead of *_LIMIT for linker derived end addresses · ecdc898d
      Masahiro Yamada authored
      
      
      The usage of _LIMIT seems odd here, so rename as follows:
        BL_CODE_LIMIT     --> BL_CODE_END
        BL_RO_DATA_LIMIT  --> BL_RO_DATA_END
        BL1_CODE_LIMIT    --> BL1_CODE_END
        BL1_RO_DATA_LIMIT --> BL1_RO_DATA_END
      
      Basically, we want to use _LIMIT and _END properly as follows:
        *_SIZE + *_MAX_SIZE = *_LIMIT
        *_SIZE + *_SIZE     = *_END
      
      The _LIMIT is generally defined by platform_def.h to indicate the
      platform-dependent memory constraint.  So, its typical usage is
        ASSERT(. <= BL31_LIMIT, "BL31 image has exceeded its limit.")
      in a linker script.
      
      On the other hand, _END is used to indicate the end address of the
      compiled image, i.e. we do not know it until the image is linked.
      
      Here, all of these macros belong to the latter, so should be
      suffixed with _END.
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      ecdc898d
  2. 14 Dec, 2016 1 commit
  3. 11 Jul, 2016 1 commit
  4. 08 Jul, 2016 2 commits
    • Sandrine Bailleux's avatar
      ARM platforms: Add support for SEPARATE_CODE_AND_RODATA · 0af559a8
      Sandrine Bailleux authored
      The arm_setup_page_tables() function used to expect a single set of
      addresses defining the extents of the whole read-only section, code
      and read-only data mixed up, which was mapped as executable.
      
      This patch changes this behaviour. arm_setup_page_tables() now
      expects 2 separate sets of addresses:
      
       - the extents of the code section;
       - the extents of the read-only data section.
      
      The code is mapped as executable, whereas the data is mapped as
      execute-never. New #defines have been introduced to identify the
      extents of the code and the read-only data section. Given that
      all BL images except BL1 share the same memory layout and linker
      script structure, these #defines are common across these images.
      The slight memory layout differences in BL1 have been handled by
      providing values specific to BL1.
      
      Note that this patch also affects the Xilinx platform port, which
      uses the arm_setup_page_tables() function. It has been updated
      accordingly, such that the memory mappings on this platform are
      unchanged. This is achieved by passing null values as the extents
      of the read-only data section so that it is ignored. As a result,
      the whole read-only section is still mapped as executable.
      
      Fixes ARM-software/tf-issues#85
      
      Change-Id: I1f95865c53ce6e253a01286ff56e0aa1161abac5
      0af559a8
    • Sandrine Bailleux's avatar
      Introduce arm_setup_page_tables() function · b5fa6563
      Sandrine Bailleux authored
      This patch introduces the arm_setup_page_tables() function to
      set up page tables on ARM platforms. It replaces the
      arm_configure_mmu_elx() functions and does the same thing except
      that it doesn't enable the MMU at the end. The idea is to reduce
      the amount of per-EL code that is generated by the C preprocessor
      by splitting the memory regions definitions and page tables creation
      (which is generic) from the MMU enablement (which is the only per-EL
      configuration).
      
      As a consequence, the call to the enable_mmu_elx() function has been
      moved up into the plat_arch_setup() hook. Any other ARM standard
      platforms that use the functions `arm_configure_mmu_elx()` must be
      updated.
      
      Change-Id: I6f12a20ce4e5187b3849a8574aac841a136de83d
      b5fa6563
  5. 15 Jun, 2016 1 commit
  6. 18 Apr, 2016 1 commit
  7. 06 Apr, 2016 1 commit