RTE_CPUFALG_WFXT indicates the availability of WFET and WFIT
instructions. To preserve consistency across the rte_cpu_flag_t
enumeration, add descriptive comments to each Arm feature listed.
Signed-off-by: Wathsala Vithanage <wathsala.vithan...@arm.com>
Reviewed-by: Dhruv Tripathi <dhruv.tripa...@arm.com>
---
lib/eal/arm/include/rte_cpuflags_64.h | 48 +++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/lib/eal/arm/include/rte_cpuflags_64.h
b/lib/eal/arm/include/rte_cpuflags_64.h
index 993d980a02..eed67bf6ec 100644
--- a/lib/eal/arm/include/rte_cpuflags_64.h
+++ b/lib/eal/arm/include/rte_cpuflags_64.h
@@ -13,28 +13,76 @@ extern "C" {
* Enumeration of all CPU features supported
*/
enum rte_cpu_flag_t {
+ /* Floating point capability */
RTE_CPUFLAG_FP = 0,
+
+ /* Arm Neon extension */
RTE_CPUFLAG_NEON,
+
+ /* Generic timer event stream */
RTE_CPUFLAG_EVTSTRM,
+
+ /* AES instructions */
RTE_CPUFLAG_AES,
+
+ /* Polynomial multiply long instruction */
RTE_CPUFLAG_PMULL,
+
+ /* SHA1 instructions */
RTE_CPUFLAG_SHA1,
+
+ /* SHA2 instructions */
RTE_CPUFLAG_SHA2,
+
+ /* CRC32 instruction */
RTE_CPUFLAG_CRC32,
+
+ /*
+ * LDADD, LDCLR, LDEOR, LDSET, LDSMAX, LDSMIN, LDUMAX, LDUMIN, CAS,
+ * CASP, and SWP instructions
+ */
RTE_CPUFLAG_ATOMICS,
+
+ /* Arm SVE extension */
RTE_CPUFLAG_SVE,
+
+ /* Arm SVE2 extension */
RTE_CPUFLAG_SVE2,
+
+ /* SVE-AES instructions */
RTE_CPUFLAG_SVEAES,
+
+ /* SVE-PMULL instruction */
RTE_CPUFLAG_SVEPMULL,
+
+ /* SVE bit permute instructions */
RTE_CPUFLAG_SVEBITPERM,
+
+ /* SVE-SHA3 instructions */
RTE_CPUFLAG_SVESHA3,
+
+ /* SVE-SM4 instructions */
RTE_CPUFLAG_SVESM4,
+
+ /* CFINV, RMIF, SETF16, SETF8, AXFLAG, and XAFLAG instructions */
RTE_CPUFLAG_FLAGM2,
+
+ /* FRINT32Z, FRINT32X, FRINT64Z, and FRINT64X instructions */
RTE_CPUFLAG_FRINT,
+
+ /* SVE Int8 matrix multiplication instructions */
RTE_CPUFLAG_SVEI8MM,
+
+ /* SVE FP32 floating-point matrix multiplication instructions */
RTE_CPUFLAG_SVEF32MM,
+
+ /* SVE FP64 floating-point matrix multiplication instructions */
RTE_CPUFLAG_SVEF64MM,
+
+ /* SVE BFloat16 instructions */
RTE_CPUFLAG_SVEBF16,
+
+ /* 64 bit execution state of the Arm architecture */
RTE_CPUFLAG_AARCH64,
/* WFET and WFIT instructions */
--
2.34.1
