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linux-next/arch/riscv/kernel
Anup Patel 387181dcdb
RISC-V: Always compile mm/init.c with cmodel=medany and notrace
The Linux RISC-V 32bit kernel is broken after we moved setup_vm() from
kernel/setup.c to mm/init.c because Linux RISC-V 32bit kernel by default
uses cmodel=medlow which results in a non-position-independent setup_vm().

This patch fixes Linux RISC-V 32bit kernel booting by:
1. Forcing cmodel=medany for mm/init.c
2. Moving remaing MM-related stuff va_pa_offset, pfn_base and
   empty_zero_page from kernel/setup.c to mm/init.c

Further, the setup_vm() cannot handle GCC instrumentation for FTRACE so
we disable it for mm/init.c by not using "-pg" compiler flag.

Fixes: 6f1e9e946f ("RISC-V: Move setup_vm() to mm/init.c")
Suggested-by: Christoph Hellwig <hch@lst.de>
Suggested-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-03-26 18:25:06 -07:00
..
vdso riscv: Use latest system call ABI 2019-02-25 20:53:52 +01:00
.gitignore RISC-V: Build Infrastructure 2017-09-26 15:26:49 -07:00
asm-offsets.c RISC-V: Add _TIF_NEED_RESCHED check for kernel thread when CONFIG_PREEMPT=y 2019-01-23 12:56:19 -08:00
cacheinfo.c RISC-V: Fix of_node_* refcount 2018-12-21 08:10:49 -08:00
cpu.c RISC-V: Remove NR_CPUs check during hartid search from DT 2019-03-04 10:40:38 -08:00
cpufeature.c RISC-V: Assign hwcap as per comman capabilities. 2019-03-04 10:40:39 -08:00
entry.S RISC-V: Add _TIF_NEED_RESCHED check for kernel thread when CONFIG_PREEMPT=y 2019-01-23 12:56:19 -08:00
fpu.S Extract FPU context operations from entry.S 2018-10-22 17:02:22 -07:00
ftrace.c riscv: add missing newlines to printk messages 2019-02-11 15:34:56 -08:00
head.S RISC-V: Build flat and compressed kernel images 2018-11-20 05:19:09 -08:00
irq.c RISC-V: Show IPI stats 2018-10-22 17:03:37 -07:00
Makefile RISC-V: Always compile mm/init.c with cmodel=medany and notrace 2019-03-26 18:25:06 -07:00
mcount-dyn.S riscv/ftrace: Add DYNAMIC_FTRACE_WITH_REGS support 2018-04-02 19:59:13 -07:00
mcount.S RISC-V: remove the unused return_to_handler export 2018-10-22 17:38:12 -07:00
module-sections.c RISC-V: Support MODULE_SECTIONS mechanism on RV32 2019-01-07 08:19:20 -08:00
module.c RISC-V: Silence some module warnings on 32-bit 2018-11-12 18:12:24 -08:00
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 of_node_* refcount 2018-12-21 08:10:49 -08:00
process.c Auto-detect whether a FPU exists 2018-10-22 17:02:23 -07:00
ptrace.c riscv: fix trace_sys_exit hook 2019-01-07 08:22:43 -08:00
reset.c
riscv_ksyms.c riscv: split the declaration of __copy_user 2018-06-09 12:34:31 -07:00
setup.c RISC-V: Always compile mm/init.c with cmodel=medany and notrace 2019-03-26 18:25:06 -07:00
signal.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
smp.c RISC-V: Fixmap support and MM cleanups 2019-03-04 11:47:04 -08:00
smpboot.c RISC-V: Compare cpuid with NR_CPUS before mapping. 2019-03-04 10:40:39 -08:00
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 RISC-V: add of_node_put() 2018-12-21 08:11:08 -08:00
traps.c RISC-V: Don't increment sepc after breakpoint. 2018-08-13 08:31:30 -07:00
vdso.c riscv/vdso: don't clear PG_reserved 2019-03-05 21:07:18 -08:00
vmlinux.lds.S Revert "RISC-V: Make BSS section as the last section in vmlinux.lds.S" 2019-02-11 15:24:45 -08:00