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Diffstat (limited to 'arch/arm64/mm/context.c')
-rw-r--r--arch/arm64/mm/context.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm64/mm/context.c b/arch/arm64/mm/context.c
index 4c63cb154859..68634c630cdd 100644
--- a/arch/arm64/mm/context.c
+++ b/arch/arm64/mm/context.c
@@ -79,6 +79,13 @@ void verify_cpu_asid_bits(void)
}
}
+static void set_reserved_asid_bits(void)
+{
+ if (IS_ENABLED(CONFIG_QCOM_FALKOR_ERRATUM_1003) &&
+ cpus_have_const_cap(ARM64_WORKAROUND_QCOM_FALKOR_E1003))
+ __set_bit(FALKOR_RESERVED_ASID, asid_map);
+}
+
static void flush_context(unsigned int cpu)
{
int i;
@@ -87,6 +94,8 @@ static void flush_context(unsigned int cpu)
/* Update the list of reserved ASIDs and the ASID bitmap. */
bitmap_clear(asid_map, 0, NUM_USER_ASIDS);
+ set_reserved_asid_bits();
+
/*
* Ensure the generation bump is observed before we xchg the
* active_asids.
@@ -244,6 +253,8 @@ static int asids_init(void)
panic("Failed to allocate bitmap for %lu ASIDs\n",
NUM_USER_ASIDS);
+ set_reserved_asid_bits();
+
pr_info("ASID allocator initialised with %lu entries\n", NUM_USER_ASIDS);
return 0;
}