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[Qemu-arm] [kvm-unit-tests PATCH v7 08/11] libcflat: add IS_ALIGNED() ma
From: |
Andrew Jones |
Subject: |
[Qemu-arm] [kvm-unit-tests PATCH v7 08/11] libcflat: add IS_ALIGNED() macro, and page sizes |
Date: |
Wed, 23 Nov 2016 17:54:03 +0100 |
From: Peter Xu <address@hidden>
These macros will be useful to do page alignment checks.
Reviewed-by: Andre Przywara <address@hidden>
Reviewed-by: Eric Auger <address@hidden>
Signed-off-by: Peter Xu <address@hidden>
[drew: also added SZ_64K and changed to shifts]
Signed-off-by: Andrew Jones <address@hidden>
---
v6: change to shifts [Alex]
---
lib/libcflat.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/libcflat.h b/lib/libcflat.h
index c3fa4f24c499..bdcc561ccafd 100644
--- a/lib/libcflat.h
+++ b/lib/libcflat.h
@@ -33,6 +33,12 @@
#define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask))
#define __ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a) - 1)
#define ALIGN(x, a) __ALIGN((x), (a))
+#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
+
+#define SZ_4K (1 << 12)
+#define SZ_64K (1 << 16)
+#define SZ_2M (1 << 21)
+#define SZ_1G (1 << 30)
typedef uint8_t u8;
typedef int8_t s8;
--
2.9.3
- [Qemu-arm] [kvm-unit-tests PATCH v7 00/11] arm/arm64: add gic framework, Andrew Jones, 2016/11/23
- [Qemu-arm] [kvm-unit-tests PATCH v7 02/11] arm64: fix get_"sysreg32" and make MPIDR 64bit, Andrew Jones, 2016/11/23
- [Qemu-arm] [kvm-unit-tests PATCH v7 01/11] lib: xstr: allow multiple args, Andrew Jones, 2016/11/23
- [Qemu-arm] [kvm-unit-tests PATCH v7 03/11] arm/arm64: smp: support more than 8 cpus, Andrew Jones, 2016/11/23
- [Qemu-arm] [kvm-unit-tests PATCH v7 06/11] arm/arm64: add initial gicv2 support, Andrew Jones, 2016/11/23
- [Qemu-arm] [kvm-unit-tests PATCH v7 04/11] arm/arm64: add some delay routines, Andrew Jones, 2016/11/23
- [Qemu-arm] [kvm-unit-tests PATCH v7 07/11] arm/arm64: gicv2: add an IPI test, Andrew Jones, 2016/11/23
- [Qemu-arm] [kvm-unit-tests PATCH v7 05/11] arm/arm64: irq enable/disable, Andrew Jones, 2016/11/23
- [Qemu-arm] [kvm-unit-tests PATCH v7 08/11] libcflat: add IS_ALIGNED() macro, and page sizes,
Andrew Jones <=
- [Qemu-arm] [kvm-unit-tests PATCH v7 09/11] arm/arm64: add initial gicv3 support, Andrew Jones, 2016/11/23
- [Qemu-arm] [kvm-unit-tests PATCH v7 11/11] arm/arm64: gic: don't just use zero, Andrew Jones, 2016/11/23
- [Qemu-arm] [kvm-unit-tests PATCH v7 10/11] arm/arm64: gicv3: add an IPI test, Andrew Jones, 2016/11/23