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-rwxr-xr-xscripts/atomic/fallbacks/acquire4
-rwxr-xr-xscripts/atomic/fallbacks/add_negative6
-rwxr-xr-xscripts/atomic/fallbacks/add_unless6
-rwxr-xr-xscripts/atomic/fallbacks/andnot4
-rwxr-xr-xscripts/atomic/fallbacks/dec4
-rwxr-xr-xscripts/atomic/fallbacks/dec_and_test6
-rwxr-xr-xscripts/atomic/fallbacks/dec_if_positive6
-rwxr-xr-xscripts/atomic/fallbacks/dec_unless_positive6
-rwxr-xr-xscripts/atomic/fallbacks/fence4
-rwxr-xr-xscripts/atomic/fallbacks/fetch_add_unless8
-rwxr-xr-xscripts/atomic/fallbacks/inc4
-rwxr-xr-xscripts/atomic/fallbacks/inc_and_test6
-rwxr-xr-xscripts/atomic/fallbacks/inc_not_zero6
-rwxr-xr-xscripts/atomic/fallbacks/inc_unless_negative6
-rwxr-xr-xscripts/atomic/fallbacks/read_acquire2
-rwxr-xr-xscripts/atomic/fallbacks/release4
-rwxr-xr-xscripts/atomic/fallbacks/set_release2
-rwxr-xr-xscripts/atomic/fallbacks/sub_and_test6
-rwxr-xr-xscripts/atomic/fallbacks/try_cmpxchg4
-rwxr-xr-xscripts/atomic/gen-atomic-fallback.sh29
-rw-r--r--scripts/atomic/gen-atomics.sh5
21 files changed, 63 insertions, 65 deletions
diff --git a/scripts/atomic/fallbacks/acquire b/scripts/atomic/fallbacks/acquire
index ea489acc285e..59c00529dc7c 100755
--- a/scripts/atomic/fallbacks/acquire
+++ b/scripts/atomic/fallbacks/acquire
@@ -1,8 +1,8 @@
cat <<EOF
static __always_inline ${ret}
-${atomic}_${pfx}${name}${sfx}_acquire(${params})
+${arch}${atomic}_${pfx}${name}${sfx}_acquire(${params})
{
- ${ret} ret = ${atomic}_${pfx}${name}${sfx}_relaxed(${args});
+ ${ret} ret = ${arch}${atomic}_${pfx}${name}${sfx}_relaxed(${args});
__atomic_acquire_fence();
return ret;
}
diff --git a/scripts/atomic/fallbacks/add_negative b/scripts/atomic/fallbacks/add_negative
index 03cc2e07fac5..a66635bceefb 100755
--- a/scripts/atomic/fallbacks/add_negative
+++ b/scripts/atomic/fallbacks/add_negative
@@ -1,6 +1,6 @@
cat <<EOF
/**
- * ${atomic}_add_negative - add and test if negative
+ * ${arch}${atomic}_add_negative - add and test if negative
* @i: integer value to add
* @v: pointer of type ${atomic}_t
*
@@ -9,8 +9,8 @@ cat <<EOF
* result is greater than or equal to zero.
*/
static __always_inline bool
-${atomic}_add_negative(${int} i, ${atomic}_t *v)
+${arch}${atomic}_add_negative(${int} i, ${atomic}_t *v)
{
- return ${atomic}_add_return(i, v) < 0;
+ return ${arch}${atomic}_add_return(i, v) < 0;
}
EOF
diff --git a/scripts/atomic/fallbacks/add_unless b/scripts/atomic/fallbacks/add_unless
index daf87a04c850..2ff598a3f9ec 100755
--- a/scripts/atomic/fallbacks/add_unless
+++ b/scripts/atomic/fallbacks/add_unless
@@ -1,6 +1,6 @@
cat << EOF
/**
- * ${atomic}_add_unless - add unless the number is already a given value
+ * ${arch}${atomic}_add_unless - add unless the number is already a given value
* @v: pointer of type ${atomic}_t
* @a: the amount to add to v...
* @u: ...unless v is equal to u.
@@ -9,8 +9,8 @@ cat << EOF
* Returns true if the addition was done.
*/
static __always_inline bool
-${atomic}_add_unless(${atomic}_t *v, ${int} a, ${int} u)
+${arch}${atomic}_add_unless(${atomic}_t *v, ${int} a, ${int} u)
{
- return ${atomic}_fetch_add_unless(v, a, u) != u;
+ return ${arch}${atomic}_fetch_add_unless(v, a, u) != u;
}
EOF
diff --git a/scripts/atomic/fallbacks/andnot b/scripts/atomic/fallbacks/andnot
index 14efce01225a..3f18663dcefb 100755
--- a/scripts/atomic/fallbacks/andnot
+++ b/scripts/atomic/fallbacks/andnot
@@ -1,7 +1,7 @@
cat <<EOF
static __always_inline ${ret}
-${atomic}_${pfx}andnot${sfx}${order}(${int} i, ${atomic}_t *v)
+${arch}${atomic}_${pfx}andnot${sfx}${order}(${int} i, ${atomic}_t *v)
{
- ${retstmt}${atomic}_${pfx}and${sfx}${order}(~i, v);
+ ${retstmt}${arch}${atomic}_${pfx}and${sfx}${order}(~i, v);
}
EOF
diff --git a/scripts/atomic/fallbacks/dec b/scripts/atomic/fallbacks/dec
index 118282f3a5a3..e2e01f0574bb 100755
--- a/scripts/atomic/fallbacks/dec
+++ b/scripts/atomic/fallbacks/dec
@@ -1,7 +1,7 @@
cat <<EOF
static __always_inline ${ret}
-${atomic}_${pfx}dec${sfx}${order}(${atomic}_t *v)
+${arch}${atomic}_${pfx}dec${sfx}${order}(${atomic}_t *v)
{
- ${retstmt}${atomic}_${pfx}sub${sfx}${order}(1, v);
+ ${retstmt}${arch}${atomic}_${pfx}sub${sfx}${order}(1, v);
}
EOF
diff --git a/scripts/atomic/fallbacks/dec_and_test b/scripts/atomic/fallbacks/dec_and_test
index f8967a891117..e8a5e492eb5f 100755
--- a/scripts/atomic/fallbacks/dec_and_test
+++ b/scripts/atomic/fallbacks/dec_and_test
@@ -1,6 +1,6 @@
cat <<EOF
/**
- * ${atomic}_dec_and_test - decrement and test
+ * ${arch}${atomic}_dec_and_test - decrement and test
* @v: pointer of type ${atomic}_t
*
* Atomically decrements @v by 1 and
@@ -8,8 +8,8 @@ cat <<EOF
* cases.
*/
static __always_inline bool
-${atomic}_dec_and_test(${atomic}_t *v)
+${arch}${atomic}_dec_and_test(${atomic}_t *v)
{
- return ${atomic}_dec_return(v) == 0;
+ return ${arch}${atomic}_dec_return(v) == 0;
}
EOF
diff --git a/scripts/atomic/fallbacks/dec_if_positive b/scripts/atomic/fallbacks/dec_if_positive
index cfb380bd2da6..527adec89c37 100755
--- a/scripts/atomic/fallbacks/dec_if_positive
+++ b/scripts/atomic/fallbacks/dec_if_positive
@@ -1,14 +1,14 @@
cat <<EOF
static __always_inline ${ret}
-${atomic}_dec_if_positive(${atomic}_t *v)
+${arch}${atomic}_dec_if_positive(${atomic}_t *v)
{
- ${int} dec, c = ${atomic}_read(v);
+ ${int} dec, c = ${arch}${atomic}_read(v);
do {
dec = c - 1;
if (unlikely(dec < 0))
break;
- } while (!${atomic}_try_cmpxchg(v, &c, dec));
+ } while (!${arch}${atomic}_try_cmpxchg(v, &c, dec));
return dec;
}
diff --git a/scripts/atomic/fallbacks/dec_unless_positive b/scripts/atomic/fallbacks/dec_unless_positive
index 69cb7aa01f9c..dcab6848ca1e 100755
--- a/scripts/atomic/fallbacks/dec_unless_positive
+++ b/scripts/atomic/fallbacks/dec_unless_positive
@@ -1,13 +1,13 @@
cat <<EOF
static __always_inline bool
-${atomic}_dec_unless_positive(${atomic}_t *v)
+${arch}${atomic}_dec_unless_positive(${atomic}_t *v)
{
- ${int} c = ${atomic}_read(v);
+ ${int} c = ${arch}${atomic}_read(v);
do {
if (unlikely(c > 0))
return false;
- } while (!${atomic}_try_cmpxchg(v, &c, c - 1));
+ } while (!${arch}${atomic}_try_cmpxchg(v, &c, c - 1));
return true;
}
diff --git a/scripts/atomic/fallbacks/fence b/scripts/atomic/fallbacks/fence
index 92a3a4691bab..3764fc8ce945 100755
--- a/scripts/atomic/fallbacks/fence
+++ b/scripts/atomic/fallbacks/fence
@@ -1,10 +1,10 @@
cat <<EOF
static __always_inline ${ret}
-${atomic}_${pfx}${name}${sfx}(${params})
+${arch}${atomic}_${pfx}${name}${sfx}(${params})
{
${ret} ret;
__atomic_pre_full_fence();
- ret = ${atomic}_${pfx}${name}${sfx}_relaxed(${args});
+ ret = ${arch}${atomic}_${pfx}${name}${sfx}_relaxed(${args});
__atomic_post_full_fence();
return ret;
}
diff --git a/scripts/atomic/fallbacks/fetch_add_unless b/scripts/atomic/fallbacks/fetch_add_unless
index fffbc0d16fdf..0e0b9aef1515 100755
--- a/scripts/atomic/fallbacks/fetch_add_unless
+++ b/scripts/atomic/fallbacks/fetch_add_unless
@@ -1,6 +1,6 @@
cat << EOF
/**
- * ${atomic}_fetch_add_unless - add unless the number is already a given value
+ * ${arch}${atomic}_fetch_add_unless - add unless the number is already a given value
* @v: pointer of type ${atomic}_t
* @a: the amount to add to v...
* @u: ...unless v is equal to u.
@@ -9,14 +9,14 @@ cat << EOF
* Returns original value of @v
*/
static __always_inline ${int}
-${atomic}_fetch_add_unless(${atomic}_t *v, ${int} a, ${int} u)
+${arch}${atomic}_fetch_add_unless(${atomic}_t *v, ${int} a, ${int} u)
{
- ${int} c = ${atomic}_read(v);
+ ${int} c = ${arch}${atomic}_read(v);
do {
if (unlikely(c == u))
break;
- } while (!${atomic}_try_cmpxchg(v, &c, c + a));
+ } while (!${arch}${atomic}_try_cmpxchg(v, &c, c + a));
return c;
}
diff --git a/scripts/atomic/fallbacks/inc b/scripts/atomic/fallbacks/inc
index 10751cd62829..15ec62946e8c 100755
--- a/scripts/atomic/fallbacks/inc
+++ b/scripts/atomic/fallbacks/inc
@@ -1,7 +1,7 @@
cat <<EOF
static __always_inline ${ret}
-${atomic}_${pfx}inc${sfx}${order}(${atomic}_t *v)
+${arch}${atomic}_${pfx}inc${sfx}${order}(${atomic}_t *v)
{
- ${retstmt}${atomic}_${pfx}add${sfx}${order}(1, v);
+ ${retstmt}${arch}${atomic}_${pfx}add${sfx}${order}(1, v);
}
EOF
diff --git a/scripts/atomic/fallbacks/inc_and_test b/scripts/atomic/fallbacks/inc_and_test
index 4acea9c93604..cecc8322a21f 100755
--- a/scripts/atomic/fallbacks/inc_and_test
+++ b/scripts/atomic/fallbacks/inc_and_test
@@ -1,6 +1,6 @@
cat <<EOF
/**
- * ${atomic}_inc_and_test - increment and test
+ * ${arch}${atomic}_inc_and_test - increment and test
* @v: pointer of type ${atomic}_t
*
* Atomically increments @v by 1
@@ -8,8 +8,8 @@ cat <<EOF
* other cases.
*/
static __always_inline bool
-${atomic}_inc_and_test(${atomic}_t *v)
+${arch}${atomic}_inc_and_test(${atomic}_t *v)
{
- return ${atomic}_inc_return(v) == 0;
+ return ${arch}${atomic}_inc_return(v) == 0;
}
EOF
diff --git a/scripts/atomic/fallbacks/inc_not_zero b/scripts/atomic/fallbacks/inc_not_zero
index d9f7b97aab42..50f2d4d48279 100755
--- a/scripts/atomic/fallbacks/inc_not_zero
+++ b/scripts/atomic/fallbacks/inc_not_zero
@@ -1,14 +1,14 @@
cat <<EOF
/**
- * ${atomic}_inc_not_zero - increment unless the number is zero
+ * ${arch}${atomic}_inc_not_zero - increment unless the number is zero
* @v: pointer of type ${atomic}_t
*
* Atomically increments @v by 1, if @v is non-zero.
* Returns true if the increment was done.
*/
static __always_inline bool
-${atomic}_inc_not_zero(${atomic}_t *v)
+${arch}${atomic}_inc_not_zero(${atomic}_t *v)
{
- return ${atomic}_add_unless(v, 1, 0);
+ return ${arch}${atomic}_add_unless(v, 1, 0);
}
EOF
diff --git a/scripts/atomic/fallbacks/inc_unless_negative b/scripts/atomic/fallbacks/inc_unless_negative
index 177a7cb51eda..87629e0d4a80 100755
--- a/scripts/atomic/fallbacks/inc_unless_negative
+++ b/scripts/atomic/fallbacks/inc_unless_negative
@@ -1,13 +1,13 @@
cat <<EOF
static __always_inline bool
-${atomic}_inc_unless_negative(${atomic}_t *v)
+${arch}${atomic}_inc_unless_negative(${atomic}_t *v)
{
- ${int} c = ${atomic}_read(v);
+ ${int} c = ${arch}${atomic}_read(v);
do {
if (unlikely(c < 0))
return false;
- } while (!${atomic}_try_cmpxchg(v, &c, c + 1));
+ } while (!${arch}${atomic}_try_cmpxchg(v, &c, c + 1));
return true;
}
diff --git a/scripts/atomic/fallbacks/read_acquire b/scripts/atomic/fallbacks/read_acquire
index 12fa83cb3a6d..341a88dccaa7 100755
--- a/scripts/atomic/fallbacks/read_acquire
+++ b/scripts/atomic/fallbacks/read_acquire
@@ -1,6 +1,6 @@
cat <<EOF
static __always_inline ${ret}
-${atomic}_read_acquire(const ${atomic}_t *v)
+${arch}${atomic}_read_acquire(const ${atomic}_t *v)
{
return smp_load_acquire(&(v)->counter);
}
diff --git a/scripts/atomic/fallbacks/release b/scripts/atomic/fallbacks/release
index 730d2a6d3e07..f8906d537c0f 100755
--- a/scripts/atomic/fallbacks/release
+++ b/scripts/atomic/fallbacks/release
@@ -1,8 +1,8 @@
cat <<EOF
static __always_inline ${ret}
-${atomic}_${pfx}${name}${sfx}_release(${params})
+${arch}${atomic}_${pfx}${name}${sfx}_release(${params})
{
__atomic_release_fence();
- ${retstmt}${atomic}_${pfx}${name}${sfx}_relaxed(${args});
+ ${retstmt}${arch}${atomic}_${pfx}${name}${sfx}_relaxed(${args});
}
EOF
diff --git a/scripts/atomic/fallbacks/set_release b/scripts/atomic/fallbacks/set_release
index e5d72c717434..76068272d5f5 100755
--- a/scripts/atomic/fallbacks/set_release
+++ b/scripts/atomic/fallbacks/set_release
@@ -1,6 +1,6 @@
cat <<EOF
static __always_inline void
-${atomic}_set_release(${atomic}_t *v, ${int} i)
+${arch}${atomic}_set_release(${atomic}_t *v, ${int} i)
{
smp_store_release(&(v)->counter, i);
}
diff --git a/scripts/atomic/fallbacks/sub_and_test b/scripts/atomic/fallbacks/sub_and_test
index 6cfe4ed49746..c580f4c2136e 100755
--- a/scripts/atomic/fallbacks/sub_and_test
+++ b/scripts/atomic/fallbacks/sub_and_test
@@ -1,6 +1,6 @@
cat <<EOF
/**
- * ${atomic}_sub_and_test - subtract value from variable and test result
+ * ${arch}${atomic}_sub_and_test - subtract value from variable and test result
* @i: integer value to subtract
* @v: pointer of type ${atomic}_t
*
@@ -9,8 +9,8 @@ cat <<EOF
* other cases.
*/
static __always_inline bool
-${atomic}_sub_and_test(${int} i, ${atomic}_t *v)
+${arch}${atomic}_sub_and_test(${int} i, ${atomic}_t *v)
{
- return ${atomic}_sub_return(i, v) == 0;
+ return ${arch}${atomic}_sub_return(i, v) == 0;
}
EOF
diff --git a/scripts/atomic/fallbacks/try_cmpxchg b/scripts/atomic/fallbacks/try_cmpxchg
index c7a26213b978..06db0f738e45 100755
--- a/scripts/atomic/fallbacks/try_cmpxchg
+++ b/scripts/atomic/fallbacks/try_cmpxchg
@@ -1,9 +1,9 @@
cat <<EOF
static __always_inline bool
-${atomic}_try_cmpxchg${order}(${atomic}_t *v, ${int} *old, ${int} new)
+${arch}${atomic}_try_cmpxchg${order}(${atomic}_t *v, ${int} *old, ${int} new)
{
${int} r, o = *old;
- r = ${atomic}_cmpxchg${order}(v, o, new);
+ r = ${arch}${atomic}_cmpxchg${order}(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
diff --git a/scripts/atomic/gen-atomic-fallback.sh b/scripts/atomic/gen-atomic-fallback.sh
index b6c6f5d306a7..0fd1cf0c2b94 100755
--- a/scripts/atomic/gen-atomic-fallback.sh
+++ b/scripts/atomic/gen-atomic-fallback.sh
@@ -2,10 +2,11 @@
# SPDX-License-Identifier: GPL-2.0
ATOMICDIR=$(dirname $0)
+ARCH=$2
. ${ATOMICDIR}/atomic-tbl.sh
-#gen_template_fallback(template, meta, pfx, name, sfx, order, atomic, int, args...)
+#gen_template_fallback(template, meta, pfx, name, sfx, order, arch, atomic, int, args...)
gen_template_fallback()
{
local template="$1"; shift
@@ -14,10 +15,11 @@ gen_template_fallback()
local name="$1"; shift
local sfx="$1"; shift
local order="$1"; shift
+ local arch="$1"; shift
local atomic="$1"; shift
local int="$1"; shift
- local atomicname="${atomic}_${pfx}${name}${sfx}${order}"
+ local atomicname="${arch}${atomic}_${pfx}${name}${sfx}${order}"
local ret="$(gen_ret_type "${meta}" "${int}")"
local retstmt="$(gen_ret_stmt "${meta}")"
@@ -32,7 +34,7 @@ gen_template_fallback()
fi
}
-#gen_proto_fallback(meta, pfx, name, sfx, order, atomic, int, args...)
+#gen_proto_fallback(meta, pfx, name, sfx, order, arch, atomic, int, args...)
gen_proto_fallback()
{
local meta="$1"; shift
@@ -56,16 +58,17 @@ cat << EOF
EOF
}
-#gen_proto_order_variants(meta, pfx, name, sfx, atomic, int, args...)
+#gen_proto_order_variants(meta, pfx, name, sfx, arch, atomic, int, args...)
gen_proto_order_variants()
{
local meta="$1"; shift
local pfx="$1"; shift
local name="$1"; shift
local sfx="$1"; shift
- local atomic="$1"
+ local arch="$1"
+ local atomic="$2"
- local basename="${atomic}_${pfx}${name}${sfx}"
+ local basename="${arch}${atomic}_${pfx}${name}${sfx}"
local template="$(find_fallback_template "${pfx}" "${name}" "${sfx}" "${order}")"
@@ -94,7 +97,7 @@ gen_proto_order_variants()
gen_basic_fallbacks "${basename}"
if [ ! -z "${template}" ]; then
- printf "#endif /* ${atomic}_${pfx}${name}${sfx} */\n\n"
+ printf "#endif /* ${arch}${atomic}_${pfx}${name}${sfx} */\n\n"
gen_proto_fallback "${meta}" "${pfx}" "${name}" "${sfx}" "" "$@"
gen_proto_fallback "${meta}" "${pfx}" "${name}" "${sfx}" "_acquire" "$@"
gen_proto_fallback "${meta}" "${pfx}" "${name}" "${sfx}" "_release" "$@"
@@ -153,18 +156,15 @@ cat << EOF
EOF
-for xchg in "xchg" "cmpxchg" "cmpxchg64"; do
+for xchg in "${ARCH}xchg" "${ARCH}cmpxchg" "${ARCH}cmpxchg64"; do
gen_xchg_fallbacks "${xchg}"
done
grep '^[a-z]' "$1" | while read name meta args; do
- gen_proto "${meta}" "${name}" "atomic" "int" ${args}
+ gen_proto "${meta}" "${name}" "${ARCH}" "atomic" "int" ${args}
done
cat <<EOF
-#define atomic_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
-#define atomic_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
-
#ifdef CONFIG_GENERIC_ATOMIC64
#include <asm-generic/atomic64.h>
#endif
@@ -172,12 +172,9 @@ cat <<EOF
EOF
grep '^[a-z]' "$1" | while read name meta args; do
- gen_proto "${meta}" "${name}" "atomic64" "s64" ${args}
+ gen_proto "${meta}" "${name}" "${ARCH}" "atomic64" "s64" ${args}
done
cat <<EOF
-#define atomic64_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
-#define atomic64_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
-
#endif /* _LINUX_ATOMIC_FALLBACK_H */
EOF
diff --git a/scripts/atomic/gen-atomics.sh b/scripts/atomic/gen-atomics.sh
index 000dc6437893..d29e159ef489 100644
--- a/scripts/atomic/gen-atomics.sh
+++ b/scripts/atomic/gen-atomics.sh
@@ -10,10 +10,11 @@ LINUXDIR=${ATOMICDIR}/../..
cat <<EOF |
gen-atomic-instrumented.sh asm-generic/atomic-instrumented.h
gen-atomic-long.sh asm-generic/atomic-long.h
+gen-atomic-fallback.sh linux/atomic-arch-fallback.h arch_
gen-atomic-fallback.sh linux/atomic-fallback.h
EOF
-while read script header; do
- /bin/sh ${ATOMICDIR}/${script} ${ATOMICTBL} > ${LINUXDIR}/include/${header}
+while read script header args; do
+ /bin/sh ${ATOMICDIR}/${script} ${ATOMICTBL} ${args} > ${LINUXDIR}/include/${header}
HASH="$(sha1sum ${LINUXDIR}/include/${header})"
HASH="${HASH%% *}"
printf "// %s\n" "${HASH}" >> ${LINUXDIR}/include/${header}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.