Hi Sergej,
On 06/27/2017 12:52 PM, Sergej Proskurin wrote:
We introduce the BIT_ULL macro to using values of unsigned long long as
to enable setting bits of 64-bit registers on AArch32. In addition,
this commit adds a define holding the register width of 64 bit
double-word registers. This define simplifies using the associated
constants in the following commits.
Signed-off-by: Sergej Proskurin <prosku...@sec.in.tum.de>
Reviewed-by: Julien Grall <julien.gr...@arm.com>
Cheers,
---
Cc: Stefano Stabellini <sstabell...@kernel.org>
Cc: Julien Grall <julien.gr...@arm.com>
---
v4: We reused the previous commit with the msg "arm/mem_access: Add
defines holding the width of 32/64bit regs" from v3, as we can reuse
the already existing define BITS_PER_WORD.
v5: Introduce a new macro BIT_ULL instead of changing the type of the
macro BIT.
Remove the define BITS_PER_DOUBLE_WORD.
---
xen/include/asm-arm/bitops.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/xen/include/asm-arm/bitops.h b/xen/include/asm-arm/bitops.h
index bda889841b..1cbfb9edb2 100644
--- a/xen/include/asm-arm/bitops.h
+++ b/xen/include/asm-arm/bitops.h
@@ -24,6 +24,7 @@
#define BIT(nr) (1UL << (nr))
#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_WORD))
#define BIT_WORD(nr) ((nr) / BITS_PER_WORD)
+#define BIT_ULL(nr) (1ULL << (nr))
#define BITS_PER_BYTE 8
#define ADDR (*(volatile int *) addr)
--
Julien Grall
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