aboutsummaryrefslogtreecommitdiffstats
path: root/lib/librte_eal/common/arch
diff options
context:
space:
mode:
authorRicardo Salveti <ricardo.salveti@linaro.org>2016-07-18 15:30:53 -0300
committerChristian Ehrhardt <christian.ehrhardt@canonical.com>2016-07-19 08:27:41 +0200
commit9ecc306d7eeeb3bb612b968250f203093a721781 (patch)
tree6533caba388d0f50d5119ac41fe7b8e479f47290 /lib/librte_eal/common/arch
parent8be94df6e9f5f70516cb86d82dd04fefaa0fe8b3 (diff)
Imported Upstream version 16.07-rc3
Change-Id: I321148bfa234858ba1986d109470b7aa280cd429 Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org> Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Diffstat (limited to 'lib/librte_eal/common/arch')
-rw-r--r--lib/librte_eal/common/arch/x86/rte_spinlock.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/librte_eal/common/arch/x86/rte_spinlock.c b/lib/librte_eal/common/arch/x86/rte_spinlock.c
new file mode 100644
index 00000000..c383e9f0
--- /dev/null
+++ b/lib/librte_eal/common/arch/x86/rte_spinlock.c
@@ -0,0 +1,45 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+ * OWNER 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.
+ */
+
+#include <stdint.h>
+
+#include "rte_cpuflags.h"
+
+uint8_t rte_rtm_supported; /* cache the flag to avoid the overhead
+ of the rte_cpu_get_flag_enabled function */
+
+static void __attribute__((constructor))
+rte_rtm_init(void)
+{
+ rte_rtm_supported = rte_cpu_get_flag_enabled(RTE_CPUFLAG_RTM);
+}