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arm64: export a few more HWCAPs

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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
This commit is contained in:
Mitchell Horne 2020-10-16 13:37:58 +00:00
parent 0387f2aacb
commit 3c2af8a31f
1 changed files with 13 additions and 1 deletions
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14
sys/arm64/arm64/identcpu.c
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@ -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;
@ -1338,6 +1342,14 @@ parse_cpu_features_hwcap(void)
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)
hwcap |= HWCAP_SVE;