[PATCH v10 05/13] eal: use umonitor umwait and tpause intrinsics

[Tyler Retzlaff]

Inline assembly is not supported for MSVC x64 instead use _umonitor,
_umwait and _tpause intrinsics.

Signed-off-by: Tyler Retzlaff <roretzla at linux.microsoft.com>
Acked-by: Morten Brørup <mb at smartsharesystems.com>
Acked-by: Konstantin Ananyev <konstantin.v.ananyev at yandex.ru>
---
 lib/eal/x86/rte_power_intrinsics.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/eal/x86/rte_power_intrinsics.c b/lib/eal/x86/rte_power_intrinsics.c
index f749da9..4066d13 100644
--- a/lib/eal/x86/rte_power_intrinsics.c
+++ b/lib/eal/x86/rte_power_intrinsics.c
@@ -109,9 +109,13 @@
 	 */
 
 	/* set address for UMONITOR */
+#if defined(RTE_TOOLCHAIN_MSVC) || defined(__WAITPKG__)
+	_umonitor(pmc->addr);
+#else
 	asm volatile(".byte 0xf3, 0x0f, 0xae, 0xf7;"
 			:
 			: "D"(pmc->addr));
+#endif
 
 	/* now that we've put this address into monitor, we can unlock */
 	rte_spinlock_unlock(&s->lock);
@@ -123,10 +127,14 @@
 		goto end;
 
 	/* execute UMWAIT */
+#if defined(RTE_TOOLCHAIN_MSVC) || defined(__WAITPKG__)
+	_umwait(tsc_l, tsc_h);
+#else
 	asm volatile(".byte 0xf2, 0x0f, 0xae, 0xf7;"
 			: /* ignore rflags */
 			: "D"(0), /* enter C0.2 */
 			  "a"(tsc_l), "d"(tsc_h));
+#endif
 
 end:
 	/* erase sleep address */
@@ -153,10 +161,14 @@
 		return -ENOTSUP;
 
 	/* execute TPAUSE */
+#if defined(RTE_TOOLCHAIN_MSVC) || defined(__WAITPKG__)
+	_tpause(tsc_l, tsc_h);
+#else
 	asm volatile(".byte 0x66, 0x0f, 0xae, 0xf7;"
 			: /* ignore rflags */
 			: "D"(0), /* enter C0.2 */
 			"a"(tsc_l), "d"(tsc_h));
+#endif
 
 	return 0;
 }
-- 
1.8.3.1