linux-dev/arch/riscv/include/asm/current.h, branch linus/master

riscv: Rename "sp_in_global" to "current_stack_pointer"

2022-03-30T22:15:27Z

To follow the existing per-arch conventions, rename "sp_in_global" to "current_stack_pointer". This will let it be used in non-arch places (like HARDENED_USERCOPY). Signed-off-by: Kees Cook Signed-off-by: Palmer Dabbelt

RISC-V: Stop relying on GCC's register allocator's hueristics

2020-03-03T18:28:13Z

GCC allows users to hint to the register allocation that a variable should be placed in a register by using a syntax along the lines of function(...) { register long in_REG __asm__("REG"); } We've abused this a bit throughout the RISC-V port to access fixed registers directly as C variables. In practice it's never going to blow up because GCC isn't going to allocate these registers, but it's not a well defined syntax so we really shouldn't be relying upon this. Luckily there is a very similar but well defined syntax that allows us to still access these registers directly as C variables, which is to simply declare the register variables globally. For fixed variables this doesn't change the ABI. LLVM disallows this ambiguous syntax, so this isn't just strictly a formatting change. Signed-off-by: Palmer Dabbelt

riscv: clean up the macro format in each header file

2019-11-12T20:04:52Z

There are many different formats in each header now, such as _ASM_XXX_H, __ASM_XXX_H, _ASM_RISCV_XXX_H, RISCV_XXX_H, etc., This patch tries to unify the format by using _ASM_RISCV_XXX_H, because the most header use it now. This patch also adds the conditional to the headers if they lost it. Signed-off-by: Zong Li Signed-off-by: Paul Walmsley

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286

2019-06-05T15:36:37Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 97 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.025053186@linutronix.de Signed-off-by: Greg Kroah-Hartman

RISC-V: Task implementation

2017-09-26T22:26:46Z

This patch contains the implementation of tasks on RISC-V, most of which is involved in task switching. Signed-off-by: Palmer Dabbelt