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  1. 08 Oct, 2019 5 commits
    • Paul Beesley's avatar
      doc: De-duplicate readme and license files · 8cc36aec
      Paul Beesley authored 
      

The readme.rst and license.rst files in the project root overlap
with the index.rst and license.rst files in the docs/ folder. We
need to use the latter when building the documentation, as Sphinx
requires all included files to be under a common root. However,
the files in the root are currently used by the cgit and Github
viewers.

Using symlinks in Git presents some difficulties so the best
course of action is likely to leave these files but in stub form.

The license.rst file in the root will simply tell the reader to
refer to docs/license.rst.

The readme.rst file will contain a small amount of content that
is derived from the docs/index.rst file, so that the Github main
page will have something valid to show, but it will also contain
a link to the full documentation on ReadTheDocs.

Change-Id: I6dc46f08777e8d7ecb32ca7afc07a28486c9f77a
Signed-off-by: default avatarPaul Beesley <paul.beesley@arm.com>
      8cc36aec
    • Paul Beesley's avatar
      doc: Convert internal links to RST format · 34760951
      Paul Beesley authored 
      

Currently links between documents are using the format:

<path/to/><filename>.rst

This was required for services like GitHub because they render each
document in isolation - linking to another document is like linking
to any other file, just provide the full path.

However, with the new approach, the .rst files are only the raw
source for the documents. Once the documents have been rendered
the output is now in another format (HTML in our case) and so,
when linking to another document, the link must point to the
rendered version and not the .rst file.

The RST spec provides a few methods for linking between content.
The parent of this patch enabled the automatic creation of anchors
for document titles - we will use these anchors as the targets for
our links. Additional anchors can be added by hand if needed, on
section and sub-section titles, for example.

An example of this new format, for a document with the title
"Firmware Design" is :ref:`Firmware Design`.

One big advantage of this is that anchors are not dependent on
paths. We can then move documents around, even between directories,
without breaking any links between documents. Links will need to be
updated only if the title of a document changes.

Change-Id: I9e2340a61dd424cbd8fd1ecc2dc166f460d81703
Signed-off-by: default avatarPaul Beesley <paul.beesley@arm.com>
      34760951
    • Soby Mathew's avatar
      Merge "doc: Add more missing platforms" into integration · 4fdad60c
      Soby Mathew authored
      4fdad60c
    • Soby Mathew's avatar
      Merge "delay: correct timeout_init_us()" into integration · 1d880258
      Soby Mathew authored
      1d880258
    • Yann Gautier's avatar
      delay: correct timeout_init_us() · 9d811b85
      Yann Gautier authored 
      

The function has to use read_cntpct_el0() to update the counter, and not
read_cntfrq_el0().

Change-Id: I9c676466e784c3122e9ffc2d87e66708797086e7
Signed-off-by: default avatarYann Gautier <yann.gautier@st.com>
      9d811b85
  3. 07 Oct, 2019 5 commits
  5. 04 Oct, 2019 3 commits
    • laurenw-arm's avatar
      Neoverse N1 Errata Workaround 1542419 · 80942622
      laurenw-arm authored 
      

Coherent I-cache is causing a prefetch violation where when the core
executes an instruction that has recently been modified, the core might
fetch a stale instruction which violates the ordering of instruction
fetches.

The workaround includes an instruction sequence to implementation
defined registers to trap all EL0 IC IVAU instructions to EL3 and a trap
handler to execute a TLB inner-shareable invalidation to an arbitrary
address followed by a DSB.
Signed-off-by: default avatarLauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: Ic3b7cbb11cf2eaf9005523ef5578a372593ae4d6
      80942622
    • Soby Mathew's avatar
      Merge "delay: timeout detection support" into integration · 81da28c2
      Soby Mathew authored
      81da28c2
    • Soby Mathew's avatar
      Fix the CAS spinlock implementation · c97cba4e
      Soby Mathew authored 
      

Make the spinlock implementation use ARMv8.1-LSE CAS instruction based
on a platform build option. The CAS-based implementation used to be
unconditionally selected for all ARM8.1+ platforms.

The previous CAS spinlock implementation had a bug wherein the spin_unlock()
implementation had an `sev` after `stlr` which is not sufficient. A dsb is
needed to ensure that the stlr completes prior to the sev. Having a dsb is
heavyweight and a better solution would be to use load exclusive semantics
to monitor the lock and wake up from wfe when a store happens to the lock.
The patch implements the same.

Change-Id: I5283ce4a889376e4cc01d1b9d09afa8229a2e522
Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
Signed-off-by: default avatarOlivier Deprez <olivier.deprez@arm.com>
      c97cba4e
  7. 03 Oct, 2019 17 commits
  9. 02 Oct, 2019 5 commits
  11. 01 Oct, 2019 4 commits
  13. 30 Sep, 2019 1 commit