linux/arch/xtensa/platforms/iss/include, branch master

xtensa: ISS: add GDBIO implementation to semihosting interface

2021-04-04T22:39:04Z

Add GDBIO implementation for the xtensa semihosting interface. It offers less functions than the simcall interface, so make some semihosting functions optional and return error when implementation is not available. Add Kconfig menu to select semihosting implementation and add simcall and GDBIO choices there. Signed-off-by: Max Filippov

xtensa: ISS: split simcall implementation from semihosting interface

2021-04-04T22:39:04Z

Disconnect existing ISS simcall implementation from the semihosting interface to allow for alternative implementations selectable at configure time. Signed-off-by: Max Filippov

xtensa: simcall.h: Change compitible to compatible

2021-04-04T22:39:04Z

s/compitible/compatible/ Signed-off-by: Bhaskar Chowdhury Message-Id: <20210326012739.18038-1-unixbhaskar@gmail.com> Signed-off-by: Max Filippov

Merge tag 'xtensa-20200206' of git://github.com/jcmvbkbc/linux-xtensa

2020-02-07T20:22:29Z

Pull xtensa updates from Max Filippov: - reorganize exception vectors placement - small cleanups (drop unused functions/headers/defconfig entries, spelling fixes) * tag 'xtensa-20200206' of git://github.com/jcmvbkbc/linux-xtensa: xtensa: ISS: improve simcall assembly xtensa: reorganize vectors placement xtensa: separate SMP and XIP support xtensa: move fast exception handlers close to vectors arch/xtensa: fix Kconfig typos for HAVE_SMP xtensa: clean up optional XCHAL_* definitions xtensa: drop unused function fast_coprocessor_double xtensa: drop empty platform_* functions from platforms xtensa: clean up platform headers xtensa: drop set_except_vector declaration xtensa: configs: Cleanup old Kconfig IO scheduler options

xtensa: ISS: improve simcall assembly

2020-02-05T05:57:05Z

Drop redundant result moving from inline assembly, use a1 and b1 values as return value and errno value respectively. Signed-off-by: Max Filippov

xtensa: ISS: avoid struct timeval

2019-12-18T17:07:31Z

'struct timeval' will get removed from the kernel, change the one user in arch/xtensa to avoid referencing it, by using a fixed-length array instead. Acked-by: Max Filippov Signed-off-by: Arnd Bergmann

xtensa: drop unneeded platform/hardware.h headers

2018-08-20T19:28:04Z

platform/hardware.h no longer supply any information for processor.h, vectors.h, setup.c or vmlinux.lds.S, don't include it. This header is now empty in the platforms/iss, so remove it altogether. Signed-off-by: Max Filippov

xtensa: rework {CONFIG,PLATFORM}_DEFAULT_MEM_START

2018-08-20T19:28:03Z

Drop PLATFORM_DEFAULT_MEM_START from the platform/hardware.h headers. Provide definition of CONFIG_DEFAULT_MEM_START always, allow changing it only in noMMU configurations when PLATFORM_WANT_DEFAULT_MEM is selected. Change prompt and description so that it's clear that it controls PAGE_OFFSET and PHYS_OFFSET. Signed-off-by: Max Filippov

xtensa: drop unused {CONFIG,PLATFORM}_DEFAULT_MEM_SIZE

2018-08-20T19:27:52Z

Now that noMMU cache attributes are set up separately drop no longer used macro PLATFORM_DEFAULT_MEM_SIZE and config symbol CONFIG_DEFAULT_MEM_SIZE used for setting it. Signed-off-by: Max Filippov

xtensa: ISS: add argc/argv simcall definitions

2017-03-13T20:47:12Z

There are three simcalls implemented by ISS and QEMU related to argc/argv processing: SYS_iss_argc (get number of command line arguments), SYS_iss_argv_size (get size of command line argument block) and SYS_iss_set_argv (copy command line arguments to virtual guest address). Add definitions for these calls to iss/include/platform/simcall.h Signed-off-by: Max Filippov