irq_matrix_assign

Name:q_matrix_assign_system - Assign system wide entry in the matrix*@m: Matrix pointer*@bit: Which bit to reserve*@replace: Replace an already allocated vector with a system* vector at the same bit position.* The BUG_ON()s below are on purpose

Proto:void irq_matrix_assign_system(struct irq_matrix *m, unsigned int bit, bool replace)

Type:void

Parameter:

Type	Parameter	Name
struct irq_matrix *	m
unsigned int	bit
bool	replace

184

cm = this_cpu_ptr(maps)

186

BUG_ON(bit > matrix_bits)

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BUG_ON(online_maps > 1 || (online_maps && !replace))

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Atomically set a bit in memory

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If replace Then

191

BUG_ON(!st_and_clear_bit - Clear a bit and return its old value*@nr: Bit to clear*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier).)

192

allocated--

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total_allocated--

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If bit >= alloc_start && bit < alloc_end Then systembits_inalloc++

198

trace_irq_matrix_assign_system(bit, m)

**Caller**
Name	Describe
lapic_assign_system_vectors

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