Version 1.0-rc3 of the RISC-V Supervisor Binary Interface Specification
has added the Performance Monitoring Unit Extension.
The sbi command should be able to detect it.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Let the sbi command show the SBI implementation version
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Use constants for extension IDs.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The ebreak instruction should generate a breakpoint exception.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Let the sbi command detect the 'System Reset Extension'
(EID #0x53525354 "SRST").
Cf. https://github.com/riscv/riscv-sbi-doc
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Pragnesh Patel <pragnesh.patel@openfive.com>
Reviewed-by: Leo Liang <ycliang@andestech.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Provide a command to display information about the SBI implementation.
The output might look like:
=> sbi
SBI 0.2
OpenSBI
Extensions:
sbi_set_timer
sbi_console_putchar
sbi_console_getchar
sbi_clear_ipi
sbi_send_ipi
sbi_remote_fence_i
sbi_remote_sfence_vma
sbi_remote_sfence_vma_asid
sbi_shutdown
SBI Base Functionality
Timer Extension
IPI Extension
RFENCE Extension
Hart State Management Extension
The command can be used to construct a unit test checking that the
communication with the SEE is working.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@openfive.com>
Tested-by: Pragnesh Patel <pragnesh.patel@openfive.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Tested-by: Rick Chen <rick@andestech.com>
The command 'exception' can be used to test the handling of exceptions.
Currently the exception command only allows to create an illegal
instruction exception on RISC-V.
Provide a sub-command 'exception unaligned' to cause a misaligned load
address exception.
Adjust the online help for 'exception undefined'.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Rick Chen <rick@andestech.com>
We should not use typedefs in U-Boot. They cannot be used as forward
declarations which means that header files must include the full header to
access them.
Drop the typedef and rename the struct to remove the _s suffix which is
now not useful.
This requires quite a few header-file additions.
Signed-off-by: Simon Glass <sjg@chromium.org>
The 'exception' command allows to test exception handling.
This implementation supports ARM, x86, RISC-V and the following exceptions:
* 'breakpoint' - prefetch abort exception (ARM 32bit only)
* 'unaligned' - data abort exception (ARM only)
* 'undefined' - undefined instruction exception
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
