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D55103.id171156.diff
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D55103.id171156.diff
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diff --git a/sys/arm64/arm64/identcpu.c b/sys/arm64/arm64/identcpu.c
--- a/sys/arm64/arm64/identcpu.c
+++ b/sys/arm64/arm64/identcpu.c
@@ -2826,6 +2826,26 @@
prev_desc = desc;
}
+ if (dic && idc) {
+ arm64_icache_sync_range = &arm64_dic_idc_icache_sync_range;
+ if (bootverbose)
+ printf("Enabling DIC & IDC ICache sync\n");
+ } else if (idc) {
+ arm64_icache_sync_range = &arm64_idc_aliasing_icache_sync_range;
+ if (bootverbose)
+ printf("Enabling IDC ICache sync\n");
+ }
+}
+/*
+ * This needs to run early to ensure the kernel ID registers have been
+ * updated for all CPUs before they are used by ifunc resolvers, etc.
+ */
+SYSINIT(identify_cpu, SI_SUB_CPU, SI_ORDER_MIDDLE,
+ identify_cpu_sysinit, NULL);
+
+static void
+identify_hwcaps_sysinit(void *dummy __unused)
+{
#ifdef INVARIANTS
/* Check we dont update the special registers after this point */
hwcaps_set = true;
@@ -2848,16 +2868,6 @@
elf32_hwcap |= parse_cpu_features_hwcap32();
#endif
- if (dic && idc) {
- arm64_icache_sync_range = &arm64_dic_idc_icache_sync_range;
- if (bootverbose)
- printf("Enabling DIC & IDC ICache sync\n");
- } else if (idc) {
- arm64_icache_sync_range = &arm64_idc_aliasing_icache_sync_range;
- if (bootverbose)
- printf("Enabling IDC ICache sync\n");
- }
-
if ((elf_hwcap & HWCAP_ATOMICS) != 0) {
lse_supported = true;
if (bootverbose)
@@ -2872,11 +2882,14 @@
install_sys_handler(user_idreg_handler);
}
/*
- * This needs to be after the APs have stareted as they may have errata that
+ * This needs to be after the APs have started as they may have errata that
* means we need to mask out ID registers & that could affect hwcaps, etc.
+ *
+ * The errata handling runs at SI_SUB_CONFIGURE, SI_ORDER_MIDDLE + 1, so this
+ * needs to be later than that.
*/
-SYSINIT(identify_cpu, SI_SUB_CONFIGURE, SI_ORDER_ANY, identify_cpu_sysinit,
- NULL);
+SYSINIT(identify_hwcaps, SI_SUB_CONFIGURE, SI_ORDER_MIDDLE + 2,
+ identify_hwcaps_sysinit, NULL);
static void
cpu_features_sysinit(void *dummy __unused)
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