svn commit: r366764 - head/sys/arm64/arm64
Mitchell Horne
mhorne at FreeBSD.org
Fri Oct 16 13:37:59 UTC 2020
Author: mhorne
Date: Fri Oct 16 13:37:58 2020
New Revision: 366764
URL: https://svnweb.freebsd.org/changeset/base/366764
Log:
arm64: export a few more HWCAPs
These were missed in the previous pass. The extensions (partially)
supported by this change are:
- ARMv8.2-FHM, Floating-point multiplication variant
- ARMv8.4-LSE, Large System Extensions
- ARMv8.4-DIT, Data Independent Timing instructions
Reviewed by: andrew, markj
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D26707
Modified:
head/sys/arm64/arm64/identcpu.c
Modified: head/sys/arm64/arm64/identcpu.c
==============================================================================
--- head/sys/arm64/arm64/identcpu.c Fri Oct 16 13:35:29 2020 (r366763)
+++ head/sys/arm64/arm64/identcpu.c Fri Oct 16 13:37:58 2020 (r366764)
@@ -883,7 +883,7 @@ static struct mrs_field_value id_aa64pfr0_el0[] = {
static struct mrs_field id_aa64pfr0_fields[] = {
MRS_FIELD(ID_AA64PFR0, CSV3, false, MRS_EXACT, id_aa64pfr0_csv3),
MRS_FIELD(ID_AA64PFR0, CSV2, false, MRS_EXACT, id_aa64pfr0_csv2),
- MRS_FIELD(ID_AA64PFR0, DIT, false, MRS_EXACT, id_aa64pfr0_dit),
+ MRS_FIELD(ID_AA64PFR0, DIT, false, MRS_LOWER, id_aa64pfr0_dit),
MRS_FIELD(ID_AA64PFR0, AMU, false, MRS_EXACT, id_aa64pfr0_amu),
MRS_FIELD(ID_AA64PFR0, MPAM, false, MRS_EXACT, id_aa64pfr0_mpam),
MRS_FIELD(ID_AA64PFR0, SEL2, false, MRS_EXACT, id_aa64pfr0_sel2),
@@ -1257,6 +1257,10 @@ parse_cpu_features_hwcap(void)
break;
}
+ if (ID_AA64ISAR0_FHM_VAL(user_cpu_desc.id_aa64isar0) ==
+ ID_AA64ISAR0_FHM_IMPL)
+ hwcap |= HWCAP_ASIMDFHM;
+
if (ID_AA64ISAR0_DP_VAL(user_cpu_desc.id_aa64isar0) ==
ID_AA64ISAR0_DP_IMPL)
hwcap |= HWCAP_ASIMDDP;
@@ -1337,6 +1341,14 @@ parse_cpu_features_hwcap(void)
if (ID_AA64ISAR1_DPB_VAL(user_cpu_desc.id_aa64isar1) ==
ID_AA64ISAR1_DPB_DCCVAP)
hwcap |= HWCAP_DCPOP;
+
+ if (ID_AA64MMFR2_AT_VAL(user_cpu_desc.id_aa64mmfr2) ==
+ ID_AA64MMFR2_AT_IMPL)
+ hwcap |= HWCAP_USCAT;
+
+ if (ID_AA64PFR0_DIT_VAL(user_cpu_desc.id_aa64pfr0) ==
+ ID_AA64PFR0_DIT_PSTATE)
+ hwcap |= HWCAP_DIT;
if (ID_AA64PFR0_SVE_VAL(user_cpu_desc.id_aa64pfr0) ==
ID_AA64PFR0_SVE_IMPL)
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