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-rw-r--r--drivers/acpi/apei/einj.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
index 096aebfe7f32..f74b2ea11f21 100644
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -101,6 +101,14 @@ static DEFINE_MUTEX(einj_mutex);
static struct einj_parameter *einj_param;
+#ifndef writeq
+static inline void writeq(__u64 val, volatile void __iomem *addr)
+{
+ writel(val, addr);
+ writel(val >> 32, addr+4);
+}
+#endif
+
static void einj_exec_ctx_init(struct apei_exec_context *ctx)
{
apei_exec_ctx_init(ctx, einj_ins_type, ARRAY_SIZE(einj_ins_type),
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