From: "Jonathan (Zhixiong) Zhang" <zjzh...@codeaurora.org>
This definition is used in APEI code when needing to map pages as
uncached.
Signed-off-by: Jonathan (Zhixiong) Zhang <zjzh...@codeaurora.org>
---
arch/x86/include/asm/acpi.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 3a45668f6dc3..6afb27682b00 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -138,6 +138,10 @@ static inline void disable_acpi(void) { }
#endif /* !CONFIG_ACPI */
+#ifdef CONFIG_ACPI_APEI
+#define ARCH_APEI_PAGE_KERNEL_UC (PAGE_KERNEL_NOCACHE)
+#endif /*CONFIG_ACPI_APEI */
+
#define ARCH_HAS_POWER_INIT 1
#ifdef CONFIG_ACPI_NUMA
--
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