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Linus Torvalds
527cd20771
Pull RISC-V updates from Palmer Dabbelt:
"This contains the new features we'd like to incorporate into the
RISC-V port for 4.17. We might have a bit more stuff land later in the
merge window, but I wanted to get this out earlier just so everyone
can see where we currently stand.
A short summary of the changes is:
- We've added support for dynamic ftrace on RISC-V targets.
- There have been a handful of cleanups to our atomic and locking
routines. They now more closely match the released RISC-V memory
model draft.
- Our module loading support has been cleaned up and is now enabled
by default, despite some limitations still existing.
- A patch to define COMMANDLINE_FORCE instead of COMMANDLINE_OVERRIDE
so the generic device tree code picks up handling all our command
line stuff.
There's more information in the merge commits for each patch set"
* tag 'riscv-for-linus-4.17-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux: (21 commits)
RISC-V: Rename CONFIG_CMDLINE_OVERRIDE to CONFIG_CMDLINE_FORCE
RISC-V: Add definition of relocation types
RISC-V: Enable module support in defconfig
RISC-V: Support SUB32 relocation type in kernel module
RISC-V: Support ADD32 relocation type in kernel module
RISC-V: Support ALIGN relocation type in kernel module
RISC-V: Support RVC_BRANCH/JUMP relocation type in kernel modulewq
RISC-V: Support HI20/LO12_I/LO12_S relocation type in kernel module
RISC-V: Support CALL relocation type in kernel module
RISC-V: Support GOT_HI20/CALL_PLT relocation type in kernel module
RISC-V: Add section of GOT.PLT for kernel module
RISC-V: Add sections of PLT and GOT for kernel module
riscv/atomic: Strengthen implementations with fences
riscv/spinlock: Strengthen implementations with fences
riscv/barrier: Define __smp_{store_release,load_acquire}
riscv/ftrace: Add HAVE_FUNCTION_GRAPH_RET_ADDR_PTR support
riscv/ftrace: Add DYNAMIC_FTRACE_WITH_REGS support
riscv/ftrace: Add ARCH_SUPPORTS_FTRACE_OPS support
riscv/ftrace: Add dynamic function graph tracer support
riscv/ftrace: Add dynamic function tracer support
...
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.