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utils: Add BIT_32 and BIT_64 macros 

When applying some MISRA rules, lots of issues are raised with BIT macro
on AARCH32, and cast on uint32_t would be required (Rule 10.3).
The macros BIT_32 and BIT_64 are then created for 32bit and 64bit.
Then the BIT macro defaults on BIT_64 on AARCH64,
and on BIT_32 on AARCH32.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
This commit is contained in:
Yann Gautier 2018-06-14 13:28:31 +02:00
parent 39676357af
commit 167c5f8098
1 changed files with 8 additions and 1 deletions
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9
include/lib/utils_def.h
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@ -16,7 +16,14 @@
#define SIZE_FROM_LOG2_WORDS(n) (4 << (n))
#define BIT(nr) (ULL(1) << (nr))
#define BIT_32(nr) (U(1) << (nr))
#define BIT_64(nr) (ULL(1) << (nr))
#ifdef AARCH32
#define BIT BIT_32
#else
#define BIT BIT_64
#endif
/*
* Create a contiguous bitmask starting at bit position @l and ending at