The sbi_ prefix would seem to indicate an SBI interface, and save is not
very specific. After applying this patch, reading head.S makes more sense.
Signed-off-by: NMichael Clark <michaeljclark@mac.com>
Signed-off-by: NPalmer Dabbelt <palmer@sifive.com>

This patch allows devices that require memory that can be addressed
using 32-bit addresses to work easily on RISC-V systems.  The newly
improved dma-direct ops will tap into this pool automatically for
32-bit addressing.

Based on an earlier patch from Wesley W. Terpstra.

CC: Wesley W. Terpstra <terpstra@sifive.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NPalmer Dabbelt <palmer@sifive.com>

This is just some cruft left over from before the port converted to
device tree.  The right way to handle memory regions is to specify them
in the device tree, which BBL (our simplest bootloader) is already
capable of doing.  This patch simply removes the cruft.
Signed-off-by: NPalmer Dabbelt <palmer@sifive.com>

builtin_cmdline handling is present in drivers/of/fdt.c so the
duplicate logic in arch/riscv/setup.c results in duplication of
the builtin command line. e.g. CONFIG_CMDLINE="root=/dev/vda ro"
gets appended twice and gives "root=/dev/vda ro root=/dev/vda ro"

Before this patch:

[    0.000000] Kernel command line: root=/dev/vda ro root=/dev/vda ro

After this patch:

[    0.000000] Kernel command line: root=/dev/vda ro
Signed-off-by: NMichael Clark <mjc@sifive.com>
Signed-off-by: NPalmer Dabbelt <palmer@sifive.com>

This is code that probably should never have made it into the kernel in
the first place: it depends on a driver that hadn't been reviewed yet.
During the HVC_SBI_RISCV review process a better way of doing this was
suggested, but that means this code is defunct.  It's compile-time
disabled in 4.15 because the driver isn't in, so I think it's safe to
just remove this for now.

CC: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: NPalmer Dabbelt <palmer@sifive.com>

These are the ones needed by current allmodconfig, so add them instead
of everything other architectures are exporting -- the rest can be
added on demand later if needed.
Signed-off-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NPalmer Dabbelt <palmer@sifive.com>

Needed by some modules (exported by other architectures).
Signed-off-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NPalmer Dabbelt <palmer@sifive.com>

This contains the various __init C functions, the initial assembly
kernel entry point, and the code to reset the system.  When a file was
init-related this patch contains the entire file.
Signed-off-by: NPalmer Dabbelt <palmer@dabbelt.com>