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Subject[PATCH 01/17] docs: amu: supress some Sphinx warnings
Add extra blank lines on some places, in order to avoid those
warnings when building the docs:

Documentation/arm64/amu.rst:26: WARNING: Unexpected indentation.
Documentation/arm64/amu.rst:60: WARNING: Unexpected indentation.
Documentation/arm64/amu.rst:81: WARNING: Unexpected indentation.
Documentation/arm64/amu.rst:108: WARNING: Unexpected indentation.

Signed-off-by: Mauro Carvalho Chehab <>
Documentation/arm64/amu.rst | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/Documentation/arm64/amu.rst b/Documentation/arm64/amu.rst
index 5057b11100ed..452ec8b115c2 100644
--- a/Documentation/arm64/amu.rst
+++ b/Documentation/arm64/amu.rst
@@ -23,6 +23,7 @@ optional external memory-mapped interface.

Version 1 of the Activity Monitors architecture implements a counter group
of four fixed and architecturally defined 64-bit event counters.
- CPU cycle counter: increments at the frequency of the CPU.
- Constant counter: increments at the fixed frequency of the system
@@ -57,6 +58,7 @@ counters, only the presence of the extension.

Firmware (code running at higher exception levels, e.g. arm-tf) support is
needed to:
- Enable access for lower exception levels (EL2 and EL1) to the AMU
- Enable the counters. If not enabled these will read as 0.
@@ -78,6 +80,7 @@ are not trapped in EL2/EL3.

The fixed counters of AMUv1 are accessible though the following system
register definitions:
@@ -93,6 +96,7 @@ Userspace access

Currently, access from userspace to the AMU registers is disabled due to:
- Security reasons: they might expose information about code executed in
secure mode.
- Purpose: AMU counters are intended for system management use.
@@ -105,6 +109,7 @@ Virtualization

Currently, access from userspace (EL0) and kernelspace (EL1) on the KVM
guest side is disabled due to:
- Security reasons: they might expose information about code executed
by other guests or the host.

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