In order to allow access to TPIDR2 from signal handlers we need to add it to the signal context, document that we are doing so.
Signed-off-by: Mark Brown broonie@kernel.org --- Documentation/arm64/sme.rst | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/Documentation/arm64/sme.rst b/Documentation/arm64/sme.rst index 16d2db4c2e2e..36b08a105dd1 100644 --- a/Documentation/arm64/sme.rst +++ b/Documentation/arm64/sme.rst @@ -111,6 +111,9 @@ be zeroed.
* Signal handlers are invoked with streaming mode and ZA disabled.
+* A new signal frame record TPIDR2_MAGIC is added formatted as a struct + tpidr2_context to allow access to TPIDR2_EL0 from signal handlers. + * A new signal frame record za_context encodes the ZA register contents on signal delivery. [1]