summaryrefslogtreecommitdiffstats
path: root/arch/csky
diff options
context:
space:
mode:
Diffstat (limited to 'arch/csky')
-rw-r--r--arch/csky/Kconfig1
-rw-r--r--arch/csky/abiv1/mmap.c12
-rw-r--r--arch/csky/boot/dts/Makefile4
-rw-r--r--arch/csky/include/asm/cmpxchg.h10
-rw-r--r--arch/csky/kernel/syscall.c2
-rw-r--r--arch/csky/kernel/vdso/Makefile8
6 files changed, 21 insertions, 16 deletions
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
index d3ac36751a..5479707eb5 100644
--- a/arch/csky/Kconfig
+++ b/arch/csky/Kconfig
@@ -37,6 +37,7 @@ config CSKY
select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPTION
select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPTION
select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPTION
+ select ARCH_NEED_CMPXCHG_1_EMU
select ARCH_WANT_FRAME_POINTERS if !CPU_CK610 && $(cc-option,-mbacktrace)
select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
select COMMON_CLK
diff --git a/arch/csky/abiv1/mmap.c b/arch/csky/abiv1/mmap.c
index 6792aca499..7f826331d4 100644
--- a/arch/csky/abiv1/mmap.c
+++ b/arch/csky/abiv1/mmap.c
@@ -28,7 +28,12 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
int do_align = 0;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {
+ .length = len,
+ .low_limit = mm->mmap_base,
+ .high_limit = TASK_SIZE,
+ .align_offset = pgoff << PAGE_SHIFT
+ };
/*
* We only need to do colour alignment if either the I or D
@@ -61,11 +66,6 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
}
- info.flags = 0;
- info.length = len;
- info.low_limit = mm->mmap_base;
- info.high_limit = TASK_SIZE;
info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
- info.align_offset = pgoff << PAGE_SHIFT;
return vm_unmapped_area(&info);
}
diff --git a/arch/csky/boot/dts/Makefile b/arch/csky/boot/dts/Makefile
index 5f1f55e911..aabffc1912 100644
--- a/arch/csky/boot/dts/Makefile
+++ b/arch/csky/boot/dts/Makefile
@@ -1,4 +1,2 @@
# SPDX-License-Identifier: GPL-2.0-only
-dtstree := $(srctree)/$(src)
-
-dtb-y := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
+dtb-y := $(patsubst $(src)/%.dts,%.dtb, $(wildcard $(src)/*.dts))
diff --git a/arch/csky/include/asm/cmpxchg.h b/arch/csky/include/asm/cmpxchg.h
index 916043b845..db6dda4718 100644
--- a/arch/csky/include/asm/cmpxchg.h
+++ b/arch/csky/include/asm/cmpxchg.h
@@ -6,6 +6,7 @@
#ifdef CONFIG_SMP
#include <linux/bug.h>
#include <asm/barrier.h>
+#include <linux/cmpxchg-emu.h>
#define __xchg_relaxed(new, ptr, size) \
({ \
@@ -61,6 +62,9 @@
__typeof__(old) __old = (old); \
__typeof__(*(ptr)) __ret; \
switch (size) { \
+ case 1: \
+ __ret = (__typeof__(*(ptr)))cmpxchg_emu_u8((volatile u8 *)__ptr, (uintptr_t)__old, (uintptr_t)__new); \
+ break; \
case 4: \
asm volatile ( \
"1: ldex.w %0, (%3) \n" \
@@ -91,6 +95,9 @@
__typeof__(old) __old = (old); \
__typeof__(*(ptr)) __ret; \
switch (size) { \
+ case 1: \
+ __ret = (__typeof__(*(ptr)))cmpxchg_emu_u8((volatile u8 *)__ptr, (uintptr_t)__old, (uintptr_t)__new); \
+ break; \
case 4: \
asm volatile ( \
"1: ldex.w %0, (%3) \n" \
@@ -122,6 +129,9 @@
__typeof__(old) __old = (old); \
__typeof__(*(ptr)) __ret; \
switch (size) { \
+ case 1: \
+ __ret = (__typeof__(*(ptr)))cmpxchg_emu_u8((volatile u8 *)__ptr, (uintptr_t)__old, (uintptr_t)__new); \
+ break; \
case 4: \
asm volatile ( \
RELEASE_FENCE \
diff --git a/arch/csky/kernel/syscall.c b/arch/csky/kernel/syscall.c
index 3d30e58a45..4540a271ee 100644
--- a/arch/csky/kernel/syscall.c
+++ b/arch/csky/kernel/syscall.c
@@ -20,7 +20,7 @@ SYSCALL_DEFINE6(mmap2,
unsigned long, prot,
unsigned long, flags,
unsigned long, fd,
- off_t, offset)
+ unsigned long, offset)
{
if (unlikely(offset & (~PAGE_MASK >> 12)))
return -EINVAL;
diff --git a/arch/csky/kernel/vdso/Makefile b/arch/csky/kernel/vdso/Makefile
index ddf784a62c..bc2261f5a8 100644
--- a/arch/csky/kernel/vdso/Makefile
+++ b/arch/csky/kernel/vdso/Makefile
@@ -23,15 +23,11 @@ obj-vdso := $(addprefix $(obj)/, $(obj-vdso))
obj-y += vdso.o vdso-syms.o
CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
-# Disable gcov profiling for VDSO code
-GCOV_PROFILE := n
-KCOV_INSTRUMENT := n
-
# Force dependency
$(obj)/vdso.o: $(obj)/vdso.so
SYSCFLAGS_vdso.so.dbg = $(c_flags)
-$(obj)/vdso.so.dbg: $(src)/vdso.lds $(obj-vdso) FORCE
+$(obj)/vdso.so.dbg: $(obj)/vdso.lds $(obj-vdso) FORCE
$(call if_changed,vdsold)
SYSCFLAGS_vdso.so.dbg = -shared -s -Wl,-soname=linux-vdso.so.1 \
-Wl,--build-id=sha1 -Wl,--hash-style=both
@@ -57,4 +53,4 @@ quiet_cmd_vdsold = VDSOLD $@
# Extracts symbol offsets from the VDSO, converting them into an assembly file
# that contains the same symbols at the same offsets.
quiet_cmd_so2s = SO2S $@
- cmd_so2s = $(NM) -D $< | $(srctree)/$(src)/so2s.sh > $@
+ cmd_so2s = $(NM) -D $< | $(src)/so2s.sh > $@