Commit e0669b95 authored by Will Deacon's avatar Will Deacon
Browse files

Merge branch 'for-next/docs' into for-next/core 

* for-next/docs:
  arm64/sme: Drop inaccurate documentation of streaming mode switches
parents 3d751c56 3c0979c6

Documentation/arch/arm64/sme.rst

+2 −12
Original line number Diff line number Diff line
@@ -81,17 +81,7 @@ The ZA matrix is square with each side having as many bytes as a streaming 
mode SVE vector.





3.  Sharing of streaming and non-streaming mode SVE state

---------------------------------------------------------



It is implementation defined which if any parts of the SVE state are shared

between streaming and non-streaming modes.  When switching between modes

via software interfaces such as ptrace if no register content is provided as

part of switching no state will be assumed to be shared and everything will

be zeroed.





4.  System call behaviour

3.  System call behaviour

-------------------------



* On syscall PSTATE.ZA is preserved, if PSTATE.ZA==1 then the contents of the
@@ -112,7 +102,7 @@ be zeroed. 
  exceptions for execve() described in section 6.





5.  Signal handling

4.  Signal handling

-------------------



* Signal handlers are invoked with PSTATE.SM=0, PSTATE.ZA=0, and TPIDR2_EL0=0.