summaryrefslogtreecommitdiff
path: root/lib
diff options
context:
space:
mode:
authorJianbo Liu <jianbo.liu@linaro.org>2015-12-03 23:02:55 +0800
committerThomas Monjalon <thomas.monjalon@6wind.com>2015-12-08 03:00:42 +0100
commit68b67f97246802e76a7744c6f462c9595df96f1a (patch)
tree765d2f721320c1480666fe150faf1eea2d12be1f /lib
parentafcd65c44440071b57268a539cb983c9e9893eea (diff)
downloaddpdk-68b67f97246802e76a7744c6f462c9595df96f1a.zip
dpdk-68b67f97246802e76a7744c6f462c9595df96f1a.tar.gz
dpdk-68b67f97246802e76a7744c6f462c9595df96f1a.tar.xz
acl/arm: enable acl for ARMv7
Implement vqtbl1q_u8 intrinsic function, which is not supported in armv7-a. Signed-off-by: Jianbo Liu <jianbo.liu@linaro.org> Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Diffstat (limited to 'lib')
-rw-r--r--lib/librte_acl/Makefile2
-rw-r--r--lib/librte_acl/rte_acl.c5
-rw-r--r--lib/librte_eal/common/include/arch/arm/rte_vect.h23
3 files changed, 28 insertions, 2 deletions
diff --git a/lib/librte_acl/Makefile b/lib/librte_acl/Makefile
index 897237d..2e394c9 100644
--- a/lib/librte_acl/Makefile
+++ b/lib/librte_acl/Makefile
@@ -49,7 +49,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_ACL) += acl_bld.c
SRCS-$(CONFIG_RTE_LIBRTE_ACL) += acl_gen.c
SRCS-$(CONFIG_RTE_LIBRTE_ACL) += acl_run_scalar.c
-ifeq ($(CONFIG_RTE_ARCH_ARM64),y)
+ifneq ($(filter y,$(CONFIG_RTE_ARCH_ARM) $(CONFIG_RTE_ARCH_ARM64)),)
SRCS-$(CONFIG_RTE_LIBRTE_ACL) += acl_run_neon.c
CFLAGS_acl_run_neon.o += -flax-vector-conversions -Wno-maybe-uninitialized
else
diff --git a/lib/librte_acl/rte_acl.c b/lib/librte_acl/rte_acl.c
index e2fdebd..4ba9786 100644
--- a/lib/librte_acl/rte_acl.c
+++ b/lib/librte_acl/rte_acl.c
@@ -114,8 +114,11 @@ rte_acl_init(void)
{
enum rte_acl_classify_alg alg = RTE_ACL_CLASSIFY_DEFAULT;
-#ifdef RTE_ARCH_ARM64
+#if defined(RTE_ARCH_ARM64)
alg = RTE_ACL_CLASSIFY_NEON;
+#elif defined(RTE_ARCH_ARM)
+ if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_NEON))
+ alg = RTE_ACL_CLASSIFY_NEON;
#else
#ifdef CC_AVX2_SUPPORT
if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2))
diff --git a/lib/librte_eal/common/include/arch/arm/rte_vect.h b/lib/librte_eal/common/include/arch/arm/rte_vect.h
index 21cdb4d..a33c054 100644
--- a/lib/librte_eal/common/include/arch/arm/rte_vect.h
+++ b/lib/librte_eal/common/include/arch/arm/rte_vect.h
@@ -53,6 +53,29 @@ typedef union rte_xmm {
double pd[XMM_SIZE / sizeof(double)];
} __attribute__((aligned(16))) rte_xmm_t;
+#ifdef RTE_ARCH_ARM
+/* NEON intrinsic vqtbl1q_u8() is not supported in ARMv7-A(AArch32) */
+static __inline uint8x16_t
+vqtbl1q_u8(uint8x16_t a, uint8x16_t b)
+{
+ uint8_t i, pos;
+ rte_xmm_t rte_a, rte_b, rte_ret;
+
+ vst1q_u8(rte_a.u8, a);
+ vst1q_u8(rte_b.u8, b);
+
+ for (i = 0; i < 16; i++) {
+ pos = rte_b.u8[i];
+ if (pos < 16)
+ rte_ret.u8[i] = rte_a.u8[pos];
+ else
+ rte_ret.u8[i] = 0;
+ }
+
+ return vld1q_u8(rte_ret.u8);
+}
+#endif
+
#ifdef __cplusplus
}
#endif