Merge branch 'master' of https://github.com/bscheinman/ck
Brendon Scheinman
12 years ago
commit
9f5fca5905
@ -0,0 +1,111 @@
|
||||
.\"
|
||||
.\" Copyright 2013 Samy Al Bahra.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in the
|
||||
.\" documentation and/or other materials provided with the distribution.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\"
|
||||
.Dd May 16, 2013
|
||||
.Dt CK_PR_FENCE_ATOMIC 3
|
||||
.Sh NAME
|
||||
.Nm ck_pr_fence_atomic
|
||||
.Nd enforce partial ordering of atomic read-modify-write operations
|
||||
.Sh LIBRARY
|
||||
Concurrency Kit (libck, \-lck)
|
||||
.Sh SYNOPSIS
|
||||
.In ck_pr.h
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_atomic void
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_strict_atomic void
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Fn ck_pr_fence_atomic
|
||||
function enfores the ordering of any
|
||||
atomic read-modify-write operations relative to
|
||||
the invocation of the function. This function
|
||||
always serve as an implicit compiler barrier. On
|
||||
architectures implementing CK_MD_TSO, this operation
|
||||
only serves as a compiler barrier and no fences
|
||||
are emitted. On architectures implementing
|
||||
CK_MD_PSO and CK_MD_RMO, a store fence is
|
||||
emitted. To force the unconditional emission of
|
||||
a fence, use
|
||||
.Fn ck_pr_fence_strict_atomic .
|
||||
.Sh EXAMPLE
|
||||
.Bd -literal -offset indent
|
||||
|
||||
#include <ck_pr.h>
|
||||
|
||||
static int a = 0;
|
||||
static int b = 0;
|
||||
static int c = 0;
|
||||
|
||||
void
|
||||
function(void)
|
||||
{
|
||||
|
||||
ck_pr_fas_int(&a, 1);
|
||||
|
||||
/*
|
||||
* Guarantee that the update to a is completed
|
||||
* with respect to the updates of b and c.
|
||||
*/
|
||||
ck_pr_fence_atomic();
|
||||
ck_pr_fas_int(&b, 2);
|
||||
ck_pr_fas_int(&c, 2);
|
||||
|
||||
return;
|
||||
}
|
||||
.Ed
|
||||
.Sh RETURN VALUES
|
||||
This function has no return value.
|
||||
.Sh SEE ALSO
|
||||
.Xr ck_pr_stall 3 ,
|
||||
.Xr ck_pr_fence_atomic_store 3 ,
|
||||
.Xr ck_pr_fence_atomic_load 3 ,
|
||||
.Xr ck_pr_fence_store 3 ,
|
||||
.Xr ck_pr_fence_load 3 ,
|
||||
.Xr ck_pr_fence_load_atomic 3 ,
|
||||
.Xr ck_pr_fence_load_store 3 ,
|
||||
.Xr ck_pr_fence_load_depends 3 ,
|
||||
.Xr ck_pr_fence_memory 3 ,
|
||||
.Xr ck_pr_barrier 3 ,
|
||||
.Xr ck_pr_fas 3 ,
|
||||
.Xr ck_pr_load 3 ,
|
||||
.Xr ck_pr_store 3 ,
|
||||
.Xr ck_pr_faa 3 ,
|
||||
.Xr ck_pr_inc 3 ,
|
||||
.Xr ck_pr_dec 3 ,
|
||||
.Xr ck_pr_neg 3 ,
|
||||
.Xr ck_pr_not 3 ,
|
||||
.Xr ck_pr_add 3 ,
|
||||
.Xr ck_pr_sub 3 ,
|
||||
.Xr ck_pr_and 3 ,
|
||||
.Xr ck_pr_or 3 ,
|
||||
.Xr ck_pr_xor 3 ,
|
||||
.Xr ck_pr_cas 3 ,
|
||||
.Xr ck_pr_btc 3 ,
|
||||
.Xr ck_pr_bts 3 ,
|
||||
.Xr ck_pr_btr 3
|
||||
.Pp
|
||||
Additional information available at http://concurrencykit.org/
|
||||
@ -0,0 +1,108 @@
|
||||
.\"
|
||||
.\" Copyright 2013 Samy Al Bahra.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in the
|
||||
.\" documentation and/or other materials provided with the distribution.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\"
|
||||
.Dd May 16, 2013
|
||||
.Dt CK_PR_FENCE_ATOMIC_LOAD 3
|
||||
.Sh NAME
|
||||
.Nm ck_pr_fence_atomic_load
|
||||
.Nd enforce ordering of atomic read-modify-write operations to load operations
|
||||
.Sh LIBRARY
|
||||
Concurrency Kit (libck, \-lck)
|
||||
.Sh SYNOPSIS
|
||||
.In ck_pr.h
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_atomic_load void
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_strict_atomic_load void
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Fn ck_pr_fence_atomic_load
|
||||
function enfores the ordering of any
|
||||
atomic read-modify-write operations relative to
|
||||
any load operations following the function invocation. This function
|
||||
always serve as an implicit compiler barrier. On
|
||||
architectures implementing CK_MD_TSO, this operation
|
||||
only serves as a compiler barrier and no fences
|
||||
are emitted. To force the unconditional emission of
|
||||
a fence, use
|
||||
.Fn ck_pr_fence_strict_atomic_load .
|
||||
.Sh EXAMPLE
|
||||
.Bd -literal -offset indent
|
||||
|
||||
#include <ck_pr.h>
|
||||
|
||||
static int a = 0;
|
||||
static int b = 0;
|
||||
|
||||
void
|
||||
function(void)
|
||||
{
|
||||
int c;
|
||||
|
||||
ck_pr_fas_int(&a, 1);
|
||||
|
||||
/*
|
||||
* Guarantee that the update to a is completed
|
||||
* with respect to the load of *b.
|
||||
*/
|
||||
ck_pr_fence_atomic_load();
|
||||
c = ck_pr_load_int(&b);
|
||||
|
||||
return;
|
||||
}
|
||||
.Ed
|
||||
.Sh RETURN VALUES
|
||||
This function has no return value.
|
||||
.Sh SEE ALSO
|
||||
.Xr ck_pr_stall 3 ,
|
||||
.Xr ck_pr_fence_atomic 3 ,
|
||||
.Xr ck_pr_fence_atomic_store 3 ,
|
||||
.Xr ck_pr_fence_store 3 ,
|
||||
.Xr ck_pr_fence_load 3 ,
|
||||
.Xr ck_pr_fence_load_atomic 3 ,
|
||||
.Xr ck_pr_fence_load_store 3 ,
|
||||
.Xr ck_pr_fence_load_depends 3 ,
|
||||
.Xr ck_pr_fence_memory 3 ,
|
||||
.Xr ck_pr_barrier 3 ,
|
||||
.Xr ck_pr_fas 3 ,
|
||||
.Xr ck_pr_load 3 ,
|
||||
.Xr ck_pr_store 3 ,
|
||||
.Xr ck_pr_faa 3 ,
|
||||
.Xr ck_pr_inc 3 ,
|
||||
.Xr ck_pr_dec 3 ,
|
||||
.Xr ck_pr_neg 3 ,
|
||||
.Xr ck_pr_not 3 ,
|
||||
.Xr ck_pr_add 3 ,
|
||||
.Xr ck_pr_sub 3 ,
|
||||
.Xr ck_pr_and 3 ,
|
||||
.Xr ck_pr_or 3 ,
|
||||
.Xr ck_pr_xor 3 ,
|
||||
.Xr ck_pr_cas 3 ,
|
||||
.Xr ck_pr_btc 3 ,
|
||||
.Xr ck_pr_bts 3 ,
|
||||
.Xr ck_pr_btr 3
|
||||
.Pp
|
||||
Additional information available at http://concurrencykit.org/
|
||||
@ -0,0 +1,109 @@
|
||||
.\"
|
||||
.\" Copyright 2013 Samy Al Bahra.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in the
|
||||
.\" documentation and/or other materials provided with the distribution.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\"
|
||||
.Dd May 16, 2013
|
||||
.Dt CK_PR_FENCE_ATOMIC_STORE 3
|
||||
.Sh NAME
|
||||
.Nm ck_pr_fence_atomic_store
|
||||
.Nd enforce ordering of atomic read-modify-write operations to store operations
|
||||
.Sh LIBRARY
|
||||
Concurrency Kit (libck, \-lck)
|
||||
.Sh SYNOPSIS
|
||||
.In ck_pr.h
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_atomic_store void
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_strict_atomic_store void
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Fn ck_pr_fence_atomic_store
|
||||
function enfores the ordering of any
|
||||
atomic read-modify-write operations relative to
|
||||
any load operations following the function invocation. This function
|
||||
always serve as an implicit compiler barrier. On
|
||||
architectures implementing CK_MD_TSO, this operation
|
||||
only serves as a compiler barrier and no fences
|
||||
are emitted. To force the unconditional emission of
|
||||
a fence, use
|
||||
.Fn ck_pr_fence_strict_atomic_store .
|
||||
.Sh EXAMPLE
|
||||
.Bd -literal -offset indent
|
||||
|
||||
#include <ck_pr.h>
|
||||
|
||||
static int a = 0;
|
||||
static int b = 0;
|
||||
|
||||
void
|
||||
function(void)
|
||||
{
|
||||
int c;
|
||||
|
||||
ck_pr_fas_int(&a, 1);
|
||||
|
||||
/*
|
||||
* Guarantee that the update to a is completed
|
||||
* with respect to the store into the value pointed
|
||||
* to by b.
|
||||
*/
|
||||
ck_pr_fence_atomic_store();
|
||||
c = ck_pr_store_int(&b, 2);
|
||||
|
||||
return;
|
||||
}
|
||||
.Ed
|
||||
.Sh RETURN VALUES
|
||||
This function has no return value.
|
||||
.Sh SEE ALSO
|
||||
.Xr ck_pr_stall 3 ,
|
||||
.Xr ck_pr_fence_atomic 3 ,
|
||||
.Xr ck_pr_fence_atomic_load 3 ,
|
||||
.Xr ck_pr_fence_store 3 ,
|
||||
.Xr ck_pr_fence_load 3 ,
|
||||
.Xr ck_pr_fence_load_atomic 3 ,
|
||||
.Xr ck_pr_fence_load_store 3 ,
|
||||
.Xr ck_pr_fence_load_depends 3 ,
|
||||
.Xr ck_pr_fence_memory 3 ,
|
||||
.Xr ck_pr_barrier 3 ,
|
||||
.Xr ck_pr_fas 3 ,
|
||||
.Xr ck_pr_load 3 ,
|
||||
.Xr ck_pr_store 3 ,
|
||||
.Xr ck_pr_faa 3 ,
|
||||
.Xr ck_pr_inc 3 ,
|
||||
.Xr ck_pr_dec 3 ,
|
||||
.Xr ck_pr_neg 3 ,
|
||||
.Xr ck_pr_not 3 ,
|
||||
.Xr ck_pr_add 3 ,
|
||||
.Xr ck_pr_sub 3 ,
|
||||
.Xr ck_pr_and 3 ,
|
||||
.Xr ck_pr_or 3 ,
|
||||
.Xr ck_pr_xor 3 ,
|
||||
.Xr ck_pr_cas 3 ,
|
||||
.Xr ck_pr_btc 3 ,
|
||||
.Xr ck_pr_bts 3 ,
|
||||
.Xr ck_pr_btr 3
|
||||
.Pp
|
||||
Additional information available at http://concurrencykit.org/
|
||||
@ -0,0 +1,113 @@
|
||||
.\"
|
||||
.\" Copyright 2013 Samy Al Bahra.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in the
|
||||
.\" documentation and/or other materials provided with the distribution.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\"
|
||||
.Dd May 18, 2013
|
||||
.Dt CK_PR_FENCE_LOAD_ATOMIC 3
|
||||
.Sh NAME
|
||||
.Nm ck_pr_fence_load_atomic
|
||||
.Nd enforce ordering of load operations to atomic read-modify-write operations
|
||||
.Sh LIBRARY
|
||||
Concurrency Kit (libck, \-lck)
|
||||
.Sh SYNOPSIS
|
||||
.In ck_pr.h
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_load_atomic void
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_strict_load_atomic void
|
||||
.Sh DESCRIPTION
|
||||
This function enforces the ordering of any memory load
|
||||
and
|
||||
.Fn ck_pr_load 3
|
||||
operations with respect to store operations relative to
|
||||
the invocation of the function. Any store operations that
|
||||
were committed on remote processors
|
||||
and received by the calling processor before the invocation of
|
||||
.Fn ck_pr_fence_load_atomic
|
||||
is also be made visible only after a call to
|
||||
the ck_pr_fence_load family of functions.
|
||||
This function always serves as an implicit compiler barrier.
|
||||
On architectures with CK_MD_TSO or CK_MD_PSO specified (total store ordering
|
||||
and partial store ordering respectively), this operation only serves
|
||||
as a compiler barrier and no fence instructions will be emitted. To
|
||||
force the unconditional emission of a load fence, use
|
||||
.Fn ck_pr_fence_strict_load_atomic .
|
||||
Architectures implementing CK_MD_RMO always emit a fence.
|
||||
.Sh EXAMPLE
|
||||
.Bd -literal -offset indent
|
||||
|
||||
#include <ck_pr.h>
|
||||
|
||||
static unsigned int a;
|
||||
static unsigned int b;
|
||||
|
||||
void
|
||||
function(void)
|
||||
{
|
||||
unsigned int snapshot_a, snapshot_b;
|
||||
|
||||
snapshot_a = ck_pr_load_uint(&a);
|
||||
|
||||
/*
|
||||
* Guarantee that the load from "a" completes
|
||||
* before the update to "b".
|
||||
*/
|
||||
ck_pr_fence_load_atomic();
|
||||
ck_pr_fas_uint(&b, 1);
|
||||
|
||||
return;
|
||||
}
|
||||
.Ed
|
||||
.Sh RETURN VALUES
|
||||
This function has no return value.
|
||||
.Sh SEE ALSO
|
||||
.Xr ck_pr_stall 3 ,
|
||||
.Xr ck_pr_fence_atomic 3 ,
|
||||
.Xr ck_pr_fence_atomic_store 3 ,
|
||||
.Xr ck_pr_fence_atomic_load 3 ,
|
||||
.Xr ck_pr_fence_load_depends 3 ,
|
||||
.Xr ck_pr_fence_load_store 3 ,
|
||||
.Xr ck_pr_fence_store 3 ,
|
||||
.Xr ck_pr_fence_memory 3 ,
|
||||
.Xr ck_pr_barrier 3 ,
|
||||
.Xr ck_pr_fas 3 ,
|
||||
.Xr ck_pr_load 3 ,
|
||||
.Xr ck_pr_store 3 ,
|
||||
.Xr ck_pr_faa 3 ,
|
||||
.Xr ck_pr_inc 3 ,
|
||||
.Xr ck_pr_dec 3 ,
|
||||
.Xr ck_pr_neg 3 ,
|
||||
.Xr ck_pr_not 3 ,
|
||||
.Xr ck_pr_add 3 ,
|
||||
.Xr ck_pr_sub 3 ,
|
||||
.Xr ck_pr_and 3 ,
|
||||
.Xr ck_pr_or 3 ,
|
||||
.Xr ck_pr_xor 3 ,
|
||||
.Xr ck_pr_cas 3 ,
|
||||
.Xr ck_pr_btc 3 ,
|
||||
.Xr ck_pr_bts 3 ,
|
||||
.Xr ck_pr_btr 3
|
||||
.Pp
|
||||
Additional information available at http://concurrencykit.org/
|
||||
@ -0,0 +1,113 @@
|
||||
.\"
|
||||
.\" Copyright 2013 Samy Al Bahra.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in the
|
||||
.\" documentation and/or other materials provided with the distribution.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\"
|
||||
.Dd May 18, 2013
|
||||
.Dt CK_PR_FENCE_LOAD_STORE 3
|
||||
.Sh NAME
|
||||
.Nm ck_pr_fence_load_store
|
||||
.Nd enforce ordering of load operations to store operations
|
||||
.Sh LIBRARY
|
||||
Concurrency Kit (libck, \-lck)
|
||||
.Sh SYNOPSIS
|
||||
.In ck_pr.h
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_load_store void
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_strict_load_store void
|
||||
.Sh DESCRIPTION
|
||||
This function enforces the ordering of any memory load
|
||||
and
|
||||
.Fn ck_pr_load 3
|
||||
operations with respect to store operations relative to
|
||||
the invocation of the function. Any store operations that
|
||||
were committed on remote processors
|
||||
and received by the calling processor before the invocation of
|
||||
.Fn ck_pr_fence_load_store
|
||||
is also be made visible only after a call to
|
||||
the ck_pr_fence_load family of functions.
|
||||
This function always serves as an implicit compiler barrier.
|
||||
On architectures with CK_MD_TSO or CK_MD_PSO specified (total store ordering
|
||||
and partial store ordering respectively), this operation only serves
|
||||
as a compiler barrier and no fence instructions will be emitted. To
|
||||
force the unconditional emission of a load fence, use
|
||||
.Fn ck_pr_fence_strict_load_store .
|
||||
Architectures implementing CK_MD_RMO always emit a fence.
|
||||
.Sh EXAMPLE
|
||||
.Bd -literal -offset indent
|
||||
|
||||
#include <ck_pr.h>
|
||||
|
||||
static unsigned int a;
|
||||
static unsigned int b;
|
||||
|
||||
void
|
||||
function(void)
|
||||
{
|
||||
unsigned int snapshot_a;
|
||||
|
||||
snapshot_a = ck_pr_load_uint(&a);
|
||||
|
||||
/*
|
||||
* Guarantee that the load from "a" completes
|
||||
* before the store to "b".
|
||||
*/
|
||||
ck_pr_fence_load_store();
|
||||
ck_pr_store_uint(&b, 1);
|
||||
|
||||
return;
|
||||
}
|
||||
.Ed
|
||||
.Sh RETURN VALUES
|
||||
This function has no return value.
|
||||
.Sh SEE ALSO
|
||||
.Xr ck_pr_stall 3 ,
|
||||
.Xr ck_pr_fence_atomic 3 ,
|
||||
.Xr ck_pr_fence_atomic_store 3 ,
|
||||
.Xr ck_pr_fence_atomic_load 3 ,
|
||||
.Xr ck_pr_fence_load_depends 3 ,
|
||||
.Xr ck_pr_fence_load_atomic 3 ,
|
||||
.Xr ck_pr_fence_store 3 ,
|
||||
.Xr ck_pr_fence_memory 3 ,
|
||||
.Xr ck_pr_barrier 3 ,
|
||||
.Xr ck_pr_fas 3 ,
|
||||
.Xr ck_pr_load 3 ,
|
||||
.Xr ck_pr_store 3 ,
|
||||
.Xr ck_pr_faa 3 ,
|
||||
.Xr ck_pr_inc 3 ,
|
||||
.Xr ck_pr_dec 3 ,
|
||||
.Xr ck_pr_neg 3 ,
|
||||
.Xr ck_pr_not 3 ,
|
||||
.Xr ck_pr_add 3 ,
|
||||
.Xr ck_pr_sub 3 ,
|
||||
.Xr ck_pr_and 3 ,
|
||||
.Xr ck_pr_or 3 ,
|
||||
.Xr ck_pr_xor 3 ,
|
||||
.Xr ck_pr_cas 3 ,
|
||||
.Xr ck_pr_btc 3 ,
|
||||
.Xr ck_pr_bts 3 ,
|
||||
.Xr ck_pr_btr 3
|
||||
.Pp
|
||||
Additional information available at http://concurrencykit.org/
|
||||
@ -0,0 +1,108 @@
|
||||
.\"
|
||||
.\" Copyright 2013 Samy Al Bahra.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in the
|
||||
.\" documentation and/or other materials provided with the distribution.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\"
|
||||
.Dd May 18, 2013
|
||||
.Dt CK_PR_FENCE_STORE_ATOMIC 3
|
||||
.Sh NAME
|
||||
.Nm ck_pr_fence_store_atomic
|
||||
.Nd enforce ordering of store operations to load operations
|
||||
.Sh LIBRARY
|
||||
Concurrency Kit (libck, \-lck)
|
||||
.Sh SYNOPSIS
|
||||
.In ck_pr.h
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_store_atomic void
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_strict_store_atomic void
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Fn ck_pr_fence_store_atomic
|
||||
function enfores the ordering of any memory store,
|
||||
.Fn ck_pr_store
|
||||
and atomic read-modify-write operations to atomic read-modify-write
|
||||
operations relative to the invocation of the function. This function
|
||||
always serve as an implicit compiler barrier.
|
||||
This functions will emit a fence for PSO and RMO
|
||||
targets. In order to force the emission of a fence use the
|
||||
.Fn ck_pr_fence_strict_store_atomic
|
||||
function.
|
||||
.Sh EXAMPLE
|
||||
.Bd -literal -offset indent
|
||||
|
||||
#include <ck_pr.h>
|
||||
|
||||
static int a = 0;
|
||||
static int b = 0;
|
||||
|
||||
void
|
||||
function(void)
|
||||
{
|
||||
|
||||
ck_pr_store_int(&a, 1);
|
||||
|
||||
/*
|
||||
* Guarantee that the store to a is completed
|
||||
* with respect to the update of b.
|
||||
*/
|
||||
ck_pr_fence_store_atomic();
|
||||
ck_pr_add_int(&b, 2);
|
||||
return;
|
||||
}
|
||||
.Ed
|
||||
.Sh RETURN VALUES
|
||||
This function has no return value.
|
||||
.Sh SEE ALSO
|
||||
.Xr ck_pr_stall 3 ,
|
||||
.Xr ck_pr_fence_atomic 3 ,
|
||||
.Xr ck_pr_fence_atomic_store 3 ,
|
||||
.Xr ck_pr_fence_atomic_load 3 ,
|
||||
.Xr ck_pr_fence_load 3 ,
|
||||
.Xr ck_pr_fence_load_atomic 3 ,
|
||||
.Xr ck_pr_fence_load_store 3 ,
|
||||
.Xr ck_pr_fence_load_depends 3 ,
|
||||
.Xr ck_pr_fence_store 3 ,
|
||||
.Xr ck_pr_fence_store_load 3 ,
|
||||
.Xr ck_pr_fence_memory 3 ,
|
||||
.Xr ck_pr_barrier 3 ,
|
||||
.Xr ck_pr_fas 3 ,
|
||||
.Xr ck_pr_load 3 ,
|
||||
.Xr ck_pr_store 3 ,
|
||||
.Xr ck_pr_faa 3 ,
|
||||
.Xr ck_pr_inc 3 ,
|
||||
.Xr ck_pr_dec 3 ,
|
||||
.Xr ck_pr_neg 3 ,
|
||||
.Xr ck_pr_not 3 ,
|
||||
.Xr ck_pr_add 3 ,
|
||||
.Xr ck_pr_sub 3 ,
|
||||
.Xr ck_pr_and 3 ,
|
||||
.Xr ck_pr_or 3 ,
|
||||
.Xr ck_pr_xor 3 ,
|
||||
.Xr ck_pr_cas 3 ,
|
||||
.Xr ck_pr_btc 3 ,
|
||||
.Xr ck_pr_bts 3 ,
|
||||
.Xr ck_pr_btr 3
|
||||
.Pp
|
||||
Additional information available at http://concurrencykit.org/
|
||||
@ -0,0 +1,107 @@
|
||||
.\"
|
||||
.\" Copyright 2013 Samy Al Bahra.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in the
|
||||
.\" documentation and/or other materials provided with the distribution.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\"
|
||||
.Dd May 18, 2013
|
||||
.Dt CK_PR_FENCE_STORE_LOAD 3
|
||||
.Sh NAME
|
||||
.Nm ck_pr_fence_store_load
|
||||
.Nd enforce ordering of store operations to load operations
|
||||
.Sh LIBRARY
|
||||
Concurrency Kit (libck, \-lck)
|
||||
.Sh SYNOPSIS
|
||||
.In ck_pr.h
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_store_load void
|
||||
.Ft void
|
||||
.Fn ck_pr_fence_strict_store_load void
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Fn ck_pr_fence_store_load
|
||||
function enfores the ordering of any memory store,
|
||||
.Fn ck_pr_store
|
||||
and atomic read-modify-write operations to load
|
||||
operations relative to the invocation of the function. This function
|
||||
always serve as an implicit compiler barrier.
|
||||
A fence will currently always be emitted for this
|
||||
operation, including for TSO memory model targets.
|
||||
.Sh EXAMPLE
|
||||
.Bd -literal -offset indent
|
||||
|
||||
#include <ck_pr.h>
|
||||
|
||||
static int a = 0;
|
||||
static int b = 0;
|
||||
|
||||
void
|
||||
function(void)
|
||||
{
|
||||
unsigned int snapshot_b;
|
||||
|
||||
ck_pr_store_int(&a, 1);
|
||||
|
||||
/*
|
||||
* Guarantee that the store to a is completed
|
||||
* with respect to load from b.
|
||||
*/
|
||||
ck_pr_fence_store_load();
|
||||
snapshot_b = ck_pr_load_int(&b, 2);
|
||||
return;
|
||||
}
|
||||
.Ed
|
||||
.Sh RETURN VALUES
|
||||
This function has no return value.
|
||||
.Sh SEE ALSO
|
||||
.Xr ck_pr_stall 3 ,
|
||||
.Xr ck_pr_fence_atomic 3 ,
|
||||
.Xr ck_pr_fence_atomic_store 3 ,
|
||||
.Xr ck_pr_fence_atomic_load 3 ,
|
||||
.Xr ck_pr_fence_load 3 ,
|
||||
.Xr ck_pr_fence_load_atomic 3 ,
|
||||
.Xr ck_pr_fence_load_store 3 ,
|
||||
.Xr ck_pr_fence_load_depends 3 ,
|
||||
.Xr ck_pr_fence_store 3 ,
|
||||
.Xr ck_pr_fence_store_atomic 3 ,
|
||||
.Xr ck_pr_fence_memory 3 ,
|
||||
.Xr ck_pr_barrier 3 ,
|
||||
.Xr ck_pr_fas 3 ,
|
||||
.Xr ck_pr_load 3 ,
|
||||
.Xr ck_pr_store 3 ,
|
||||
.Xr ck_pr_faa 3 ,
|
||||
.Xr ck_pr_inc 3 ,
|
||||
.Xr ck_pr_dec 3 ,
|
||||
.Xr ck_pr_neg 3 ,
|
||||
.Xr ck_pr_not 3 ,
|
||||
.Xr ck_pr_add 3 ,
|
||||
.Xr ck_pr_sub 3 ,
|
||||
.Xr ck_pr_and 3 ,
|
||||
.Xr ck_pr_or 3 ,
|
||||
.Xr ck_pr_xor 3 ,
|
||||
.Xr ck_pr_cas 3 ,
|
||||
.Xr ck_pr_btc 3 ,
|
||||
.Xr ck_pr_bts 3 ,
|
||||
.Xr ck_pr_btr 3
|
||||
.Pp
|
||||
Additional information available at http://concurrencykit.org/
|
||||
Loading…
Reference in new issue