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Diffstat (limited to 'include/acpi/platform/aclinuxex.h')
-rw-r--r--include/acpi/platform/aclinuxex.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/acpi/platform/aclinuxex.h b/include/acpi/platform/aclinuxex.h
index 191e741cfa0e..568d4b886712 100644
--- a/include/acpi/platform/aclinuxex.h
+++ b/include/acpi/platform/aclinuxex.h
@@ -46,6 +46,28 @@
#ifdef __KERNEL__
+#ifndef ACPI_USE_NATIVE_DIVIDE
+
+#ifndef ACPI_DIV_64_BY_32
+#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
+ do { \
+ u64 (__n) = ((u64) n_hi) << 32 | (n_lo); \
+ (r32) = do_div ((__n), (d32)); \
+ (q32) = (u32) (__n); \
+ } while (0)
+#endif
+
+#ifndef ACPI_SHIFT_RIGHT_64
+#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
+ do { \
+ (n_lo) >>= 1; \
+ (n_lo) |= (((n_hi) & 1) << 31); \
+ (n_hi) >>= 1; \
+ } while (0)
+#endif
+
+#endif
+
/*
* Overrides for in-kernel ACPICA
*/