linux-kernel - [PATCH 0/2] xtensa: add GDBIO implementation to semihosting interface

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Message-Id: <20210326193143.21016-1-jcmvbkbc@gmail.com>
Date:   Fri, 26 Mar 2021 12:31:41 -0700
From:   Max Filippov <jcmvbkbc@...il.com>
To:     linux-xtensa@...ux-xtensa.org
Cc:     Chris Zankel <chris@...kel.net>, linux-kernel@...r.kernel.org,
        Max Filippov <jcmvbkbc@...il.com>
Subject: [PATCH 0/2] xtensa: add GDBIO implementation to semihosting interface

Hello,

this series adds GDBIO implementation to the semihosting interface and
makes it a configuration time choice. GDBIO interface is useful for
development hardware platforms that don't offer any peripherals and only
accessible via JTAG. xtensa kernel built for ISS may be run on such
platforms using GDBIO implementation of the semihosting interface.

Max Filippov (2):
  xtensa: ISS: split simcall implementation from semihosting interface
  xtensa: ISS: add GDBIO implementation to semihosting interface

 arch/xtensa/Kconfig                           |  22 ++++
 .../iss/include/platform/simcall-gdbio.h      |  34 ++++++
 .../iss/include/platform/simcall-iss.h        |  73 ++++++++++++
 .../platforms/iss/include/platform/simcall.h  | 104 +++++++-----------
 4 files changed, 166 insertions(+), 67 deletions(-)
 create mode 100644 arch/xtensa/platforms/iss/include/platform/simcall-gdbio.h
 create mode 100644 arch/xtensa/platforms/iss/include/platform/simcall-iss.h

-- 
2.20.1