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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /scripts/atomic/fallbacks
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'scripts/atomic/fallbacks')
-rwxr-xr-xscripts/atomic/fallbacks/acquire5
-rwxr-xr-xscripts/atomic/fallbacks/add_negative3
-rwxr-xr-xscripts/atomic/fallbacks/add_unless3
-rwxr-xr-xscripts/atomic/fallbacks/andnot3
-rw-r--r--scripts/atomic/fallbacks/cmpxchg3
-rwxr-xr-xscripts/atomic/fallbacks/dec3
-rwxr-xr-xscripts/atomic/fallbacks/dec_and_test3
-rwxr-xr-xscripts/atomic/fallbacks/dec_if_positive11
-rwxr-xr-xscripts/atomic/fallbacks/dec_unless_positive10
-rwxr-xr-xscripts/atomic/fallbacks/fence7
-rwxr-xr-xscripts/atomic/fallbacks/fetch_add_unless10
-rwxr-xr-xscripts/atomic/fallbacks/inc3
-rwxr-xr-xscripts/atomic/fallbacks/inc_and_test3
-rwxr-xr-xscripts/atomic/fallbacks/inc_not_zero3
-rwxr-xr-xscripts/atomic/fallbacks/inc_unless_negative10
-rwxr-xr-xscripts/atomic/fallbacks/read_acquire12
-rwxr-xr-xscripts/atomic/fallbacks/release4
-rwxr-xr-xscripts/atomic/fallbacks/set_release8
-rwxr-xr-xscripts/atomic/fallbacks/sub_and_test3
-rwxr-xr-xscripts/atomic/fallbacks/try_cmpxchg7
-rw-r--r--scripts/atomic/fallbacks/xchg3
21 files changed, 117 insertions, 0 deletions
diff --git a/scripts/atomic/fallbacks/acquire b/scripts/atomic/fallbacks/acquire
new file mode 100755
index 0000000000..4da0cab360
--- /dev/null
+++ b/scripts/atomic/fallbacks/acquire
@@ -0,0 +1,5 @@
+cat <<EOF
+ ${ret} ret = arch_${atomic}_${pfx}${name}${sfx}_relaxed(${args});
+ __atomic_acquire_fence();
+ return ret;
+EOF
diff --git a/scripts/atomic/fallbacks/add_negative b/scripts/atomic/fallbacks/add_negative
new file mode 100755
index 0000000000..1d3d4ab3a9
--- /dev/null
+++ b/scripts/atomic/fallbacks/add_negative
@@ -0,0 +1,3 @@
+cat <<EOF
+ return raw_${atomic}_add_return${order}(i, v) < 0;
+EOF
diff --git a/scripts/atomic/fallbacks/add_unless b/scripts/atomic/fallbacks/add_unless
new file mode 100755
index 0000000000..95ecb2b740
--- /dev/null
+++ b/scripts/atomic/fallbacks/add_unless
@@ -0,0 +1,3 @@
+cat << EOF
+ return raw_${atomic}_fetch_add_unless(v, a, u) != u;
+EOF
diff --git a/scripts/atomic/fallbacks/andnot b/scripts/atomic/fallbacks/andnot
new file mode 100755
index 0000000000..66760457e6
--- /dev/null
+++ b/scripts/atomic/fallbacks/andnot
@@ -0,0 +1,3 @@
+cat <<EOF
+ ${retstmt}raw_${atomic}_${pfx}and${sfx}${order}(~i, v);
+EOF
diff --git a/scripts/atomic/fallbacks/cmpxchg b/scripts/atomic/fallbacks/cmpxchg
new file mode 100644
index 0000000000..1c8507f62e
--- /dev/null
+++ b/scripts/atomic/fallbacks/cmpxchg
@@ -0,0 +1,3 @@
+cat <<EOF
+ return raw_cmpxchg${order}(&v->counter, old, new);
+EOF
diff --git a/scripts/atomic/fallbacks/dec b/scripts/atomic/fallbacks/dec
new file mode 100755
index 0000000000..60d286d403
--- /dev/null
+++ b/scripts/atomic/fallbacks/dec
@@ -0,0 +1,3 @@
+cat <<EOF
+ ${retstmt}raw_${atomic}_${pfx}sub${sfx}${order}(1, v);
+EOF
diff --git a/scripts/atomic/fallbacks/dec_and_test b/scripts/atomic/fallbacks/dec_and_test
new file mode 100755
index 0000000000..3a0278e0dd
--- /dev/null
+++ b/scripts/atomic/fallbacks/dec_and_test
@@ -0,0 +1,3 @@
+cat <<EOF
+ return raw_${atomic}_dec_return(v) == 0;
+EOF
diff --git a/scripts/atomic/fallbacks/dec_if_positive b/scripts/atomic/fallbacks/dec_if_positive
new file mode 100755
index 0000000000..f65c11b4b8
--- /dev/null
+++ b/scripts/atomic/fallbacks/dec_if_positive
@@ -0,0 +1,11 @@
+cat <<EOF
+ ${int} dec, c = raw_${atomic}_read(v);
+
+ do {
+ dec = c - 1;
+ if (unlikely(dec < 0))
+ break;
+ } while (!raw_${atomic}_try_cmpxchg(v, &c, dec));
+
+ return dec;
+EOF
diff --git a/scripts/atomic/fallbacks/dec_unless_positive b/scripts/atomic/fallbacks/dec_unless_positive
new file mode 100755
index 0000000000..d025361d7b
--- /dev/null
+++ b/scripts/atomic/fallbacks/dec_unless_positive
@@ -0,0 +1,10 @@
+cat <<EOF
+ ${int} c = raw_${atomic}_read(v);
+
+ do {
+ if (unlikely(c > 0))
+ return false;
+ } while (!raw_${atomic}_try_cmpxchg(v, &c, c - 1));
+
+ return true;
+EOF
diff --git a/scripts/atomic/fallbacks/fence b/scripts/atomic/fallbacks/fence
new file mode 100755
index 0000000000..40d5b39765
--- /dev/null
+++ b/scripts/atomic/fallbacks/fence
@@ -0,0 +1,7 @@
+cat <<EOF
+ ${ret} ret;
+ __atomic_pre_full_fence();
+ ret = arch_${atomic}_${pfx}${name}${sfx}_relaxed(${args});
+ __atomic_post_full_fence();
+ return ret;
+EOF
diff --git a/scripts/atomic/fallbacks/fetch_add_unless b/scripts/atomic/fallbacks/fetch_add_unless
new file mode 100755
index 0000000000..8db7e9e17f
--- /dev/null
+++ b/scripts/atomic/fallbacks/fetch_add_unless
@@ -0,0 +1,10 @@
+cat << EOF
+ ${int} c = raw_${atomic}_read(v);
+
+ do {
+ if (unlikely(c == u))
+ break;
+ } while (!raw_${atomic}_try_cmpxchg(v, &c, c + a));
+
+ return c;
+EOF
diff --git a/scripts/atomic/fallbacks/inc b/scripts/atomic/fallbacks/inc
new file mode 100755
index 0000000000..56c770f591
--- /dev/null
+++ b/scripts/atomic/fallbacks/inc
@@ -0,0 +1,3 @@
+cat <<EOF
+ ${retstmt}raw_${atomic}_${pfx}add${sfx}${order}(1, v);
+EOF
diff --git a/scripts/atomic/fallbacks/inc_and_test b/scripts/atomic/fallbacks/inc_and_test
new file mode 100755
index 0000000000..7d16a10f22
--- /dev/null
+++ b/scripts/atomic/fallbacks/inc_and_test
@@ -0,0 +1,3 @@
+cat <<EOF
+ return raw_${atomic}_inc_return(v) == 0;
+EOF
diff --git a/scripts/atomic/fallbacks/inc_not_zero b/scripts/atomic/fallbacks/inc_not_zero
new file mode 100755
index 0000000000..1fcef1e55b
--- /dev/null
+++ b/scripts/atomic/fallbacks/inc_not_zero
@@ -0,0 +1,3 @@
+cat <<EOF
+ return raw_${atomic}_add_unless(v, 1, 0);
+EOF
diff --git a/scripts/atomic/fallbacks/inc_unless_negative b/scripts/atomic/fallbacks/inc_unless_negative
new file mode 100755
index 0000000000..7b4b098688
--- /dev/null
+++ b/scripts/atomic/fallbacks/inc_unless_negative
@@ -0,0 +1,10 @@
+cat <<EOF
+ ${int} c = raw_${atomic}_read(v);
+
+ do {
+ if (unlikely(c < 0))
+ return false;
+ } while (!raw_${atomic}_try_cmpxchg(v, &c, c + 1));
+
+ return true;
+EOF
diff --git a/scripts/atomic/fallbacks/read_acquire b/scripts/atomic/fallbacks/read_acquire
new file mode 100755
index 0000000000..e319862d2f
--- /dev/null
+++ b/scripts/atomic/fallbacks/read_acquire
@@ -0,0 +1,12 @@
+cat <<EOF
+ ${int} ret;
+
+ if (__native_word(${atomic}_t)) {
+ ret = smp_load_acquire(&(v)->counter);
+ } else {
+ ret = raw_${atomic}_read(v);
+ __atomic_acquire_fence();
+ }
+
+ return ret;
+EOF
diff --git a/scripts/atomic/fallbacks/release b/scripts/atomic/fallbacks/release
new file mode 100755
index 0000000000..1e6daf57b4
--- /dev/null
+++ b/scripts/atomic/fallbacks/release
@@ -0,0 +1,4 @@
+cat <<EOF
+ __atomic_release_fence();
+ ${retstmt}arch_${atomic}_${pfx}${name}${sfx}_relaxed(${args});
+EOF
diff --git a/scripts/atomic/fallbacks/set_release b/scripts/atomic/fallbacks/set_release
new file mode 100755
index 0000000000..16a374ae6b
--- /dev/null
+++ b/scripts/atomic/fallbacks/set_release
@@ -0,0 +1,8 @@
+cat <<EOF
+ if (__native_word(${atomic}_t)) {
+ smp_store_release(&(v)->counter, i);
+ } else {
+ __atomic_release_fence();
+ raw_${atomic}_set(v, i);
+ }
+EOF
diff --git a/scripts/atomic/fallbacks/sub_and_test b/scripts/atomic/fallbacks/sub_and_test
new file mode 100755
index 0000000000..d1f746fe0c
--- /dev/null
+++ b/scripts/atomic/fallbacks/sub_and_test
@@ -0,0 +1,3 @@
+cat <<EOF
+ return raw_${atomic}_sub_return(i, v) == 0;
+EOF
diff --git a/scripts/atomic/fallbacks/try_cmpxchg b/scripts/atomic/fallbacks/try_cmpxchg
new file mode 100755
index 0000000000..d4da82092b
--- /dev/null
+++ b/scripts/atomic/fallbacks/try_cmpxchg
@@ -0,0 +1,7 @@
+cat <<EOF
+ ${int} r, o = *old;
+ r = raw_${atomic}_cmpxchg${order}(v, o, new);
+ if (unlikely(r != o))
+ *old = r;
+ return likely(r == o);
+EOF
diff --git a/scripts/atomic/fallbacks/xchg b/scripts/atomic/fallbacks/xchg
new file mode 100644
index 0000000000..e4def1e0d0
--- /dev/null
+++ b/scripts/atomic/fallbacks/xchg
@@ -0,0 +1,3 @@
+cat <<EOF
+ return raw_xchg${order}(&v->counter, new);
+EOF