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86e581e310
linux/arch/riscv/kernel
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Palmer Dabbelt 86e581e310
RISC-V: Mask out the F extension on systems without D 
The RISC-V Linux port doesn't support systems that have the F extension
but don't have the D extension -- we actually don't support systems
without D either, but Alan's patch set is rectifying that soon.  For now
I think we can leave this in a semi-broken state and just wait for
Alan's patch set to get merged for proper non-FPU support -- the patch
set is starting to look good, so doing something in-between doesn't seem
like it's worth the work.

I don't think it's worth fretting about support for systems with F but
not D for now: our glibc ABIs are IMAC and IMAFDC so they probably won't
end up being popular.  We can always extend this in the future.

CC: Alan Kao <alankao@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-10-22 17:38:00 -07:00
..
vdso RISC-V: Use KBUILD_CFLAGS instead of KCFLAGS when building the vDSO 2018-08-13 08:31:28 -07:00
.gitignore RISC-V: Build Infrastructure 2017-09-26 15:26:49 -07:00
asm-offsets.c RISC-V: Task implementation 2017-09-26 15:26:46 -07:00
cacheinfo.c RISC-V: Don't set cacheinfo.{physical_line_partition,attributes} 2018-10-22 17:37:41 -07:00
cpu.c
cpufeature.c RISC-V: Mask out the F extension on systems without D 2018-10-22 17:38:00 -07:00
entry.S RISC-V: implement low-level interrupt handling 2018-08-13 08:31:31 -07:00
ftrace.c riscv/ftrace: Add HAVE_FUNCTION_GRAPH_RET_ADDR_PTR support 2018-04-02 19:59:13 -07:00
head.S RISC-V: Add the directive for alignment of stvec's value 2018-08-13 08:31:31 -07:00
irq.c clocksource: new RISC-V SBI timer driver 2018-08-13 08:31:31 -07:00
Makefile perf: riscv: preliminary RISC-V support 2018-06-04 14:02:01 -07:00
mcount-dyn.S riscv/ftrace: Add DYNAMIC_FTRACE_WITH_REGS support 2018-04-02 19:59:13 -07:00
mcount.S riscv/ftrace: Export _mcount when DYNAMIC_FTRACE isn't set 2018-06-11 09:04:03 -07:00
module-sections.c RISC-V: Add section of GOT.PLT for kernel module 2018-04-02 20:00:54 -07:00
module.c RISC-V: Fix the rv32i kernel build 2018-07-04 14:12:53 -07:00
module.lds RISC-V: Add section of GOT.PLT for kernel module 2018-04-02 20:00:54 -07:00
perf_event.c RISC-V: Fix !CONFIG_SMP compilation error 2018-08-13 08:31:32 -07:00
process.c Merge branch 'work.whack-a-mole' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-31 19:18:12 -08:00
ptrace.c RISC-V: Fix PTRACE_SETREGSET bug. 2018-07-04 14:12:47 -07:00
reset.c
riscv_ksyms.c riscv: split the declaration of __copy_user 2018-06-09 12:34:31 -07:00
setup.c RISCV: Fix end PFN for low memory 2018-10-02 12:50:01 -07:00
signal.c RISC-V: User-facing API 2017-09-26 15:26:48 -07:00
smp.c RISC-V: simplify software interrupt / IPI code 2018-08-13 08:31:30 -07:00
smpboot.c clocksource: new RISC-V SBI timer driver 2018-08-13 08:31:31 -07:00
stacktrace.c riscv/ftrace: Add HAVE_FUNCTION_GRAPH_RET_ADDR_PTR support 2018-04-02 19:59:13 -07:00
sys_riscv.c RISC-V: Use a less ugly workaround for unused variable warnings 2018-08-28 12:58:36 -07:00
syscall_table.c RISC-V: Make __NR_riscv_flush_icache visible to userspace 2018-01-07 15:14:37 -08:00
time.c clocksource: new RISC-V SBI timer driver 2018-08-13 08:31:31 -07:00
traps.c RISC-V: Don't increment sepc after breakpoint. 2018-08-13 08:31:30 -07:00
vdso.c riscv: remove redundant unlikely() 2018-01-30 19:12:06 -08:00
vmlinux.lds.S RISC-V: Build Infrastructure 2017-09-26 15:26:49 -07:00