Skip to content

GitLab

Switch branch/tag
  1. 18 Jul, 2018 12 commits
  3. 28 Jun, 2018 2 commits
  5. 27 Jun, 2018 7 commits
    • Dimitris Papastamos's avatar
      Merge pull request #1429 from jeenu-arm/mmu-direct · d48f193d
      Dimitris Papastamos authored 
      Enable MMU without stack for xlat v2/DynamIQ
      d48f193d
    • Jeenu Viswambharan's avatar
      TSP: Enable cache along with MMU · bb00ea5b
      Jeenu Viswambharan authored 
      

Previously, data caches were disabled while enabling MMU only because of
active stack. Now that we can enable MMU without using stack, we can
enable both MMU and data caches at the same time.

Change-Id: I73f3b8bae5178610e17e9ad06f81f8f6f97734a6
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      bb00ea5b
    • Jeenu Viswambharan's avatar
      DynamIQ: Enable MMU without using stack · 64ee263e
      Jeenu Viswambharan authored 
      

Having an active stack while enabling MMU has shown coherency problems.
This patch builds on top of translation library changes that introduces
MMU-enabling without using stacks.

Previously, with HW_ASSISTED_COHERENCY, data caches were disabled while
enabling MMU only because of active stack. Now that we can enable MMU
without using stack, we can enable both MMU and data caches at the same
time.

NOTE: Since this feature depends on using translation table library v2,
disallow using translation table library v1 with HW_ASSISTED_COHERENCY.

Fixes ARM-software/tf-issues#566

Change-Id: Ie55aba0c23ee9c5109eb3454cb8fa45d74f8bbb2
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      64ee263e
    • Jeenu Viswambharan's avatar
      xlat v1: Provide direct MMU-enabling stubs · 92bec97f
      Jeenu Viswambharan authored 
      

An earlier patch split MMU-enabling function for translation library v2.
Although we don't intend to introduce the exact same functionality for
xlat v1, this patch introduces stubs for directly enabling MMU to
maintain API-compatibility.

Change-Id: Id7d56e124c80af71de999fcda10f1734b50bca97
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      92bec97f
    • Jeenu Viswambharan's avatar
      xlat v2: Split MMU setup and enable · 0cc7aa89
      Jeenu Viswambharan authored 
      

At present, the function provided by the translation library to enable
MMU constructs appropriate values for translation library, and programs
them to the right registers. The construction of initial values,
however, is only required once as both the primary and secondaries
program the same values.

Additionally, the MMU-enabling function is written in C, which means
there's an active stack at the time of enabling MMU. On some systems,
like Arm DynamIQ, having active stack while enabling MMU during warm
boot might lead to coherency problems.

This patch addresses both the above problems by:

  - Splitting the MMU-enabling function into two: one that sets up
    values to be programmed into the registers, and another one that
    takes the pre-computed values and writes to the appropriate
    registers. With this, the primary effectively calls both functions
    to have the MMU enabled, but secondaries only need to call the
    latter.

  - Rewriting the function that enables MMU in assembly so that it
    doesn't use stack.

This patch fixes a bunch of MISRA issues on the way.

Change-Id: I0faca97263a970ffe765f0e731a1417e43fbfc45
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      0cc7aa89
    • Dimitris Papastamos's avatar
      Merge pull request #1453 from soby-mathew/sm/set_cntfrq_bl1 · 86e07ae6
      Dimitris Papastamos authored 
      ARM platforms: Initialize cntfrq for BL1 Firmware update
      86e07ae6
    • Dimitris Papastamos's avatar
      Merge pull request #1455 from antonio-nino-diaz-arm/an/ep-doc · a5298db2
      Dimitris Papastamos authored 
      Document ep_info attribute flags
      a5298db2
  7. 26 Jun, 2018 2 commits
  9. 25 Jun, 2018 4 commits
  11. 23 Jun, 2018 2 commits
  13. 22 Jun, 2018 11 commits