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2c044e0c4e
This commit refactors vector allocation/free codes, two functions are
defined to help alloc/free vectors for an irq:
- uint32_t alloc_irq_vector(uint32_t irq)
- alloc a free vector (0x20 ~ 0xDF), and bind it to irq, for legacy irqs
and static mapped irqs, vector has been allocated and bind, so just
check the mapping correctness;
- return: valid vector on success, VECTOR_INVALID on failure.
- void free_irq_vector(uint32_t irq)
- free vector allocated via alloc_irq_vector(), for legacy irqs and static
mapped irqs, nothing need to do.
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>