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Searched refs:inv_queue_tail (Results 1 – 2 of 2) sorted by relevance

/freebsd-13.1/sys/x86/iommu/
H A Dintel_qi.c104 dmar_write4(unit, DMAR_IQT_REG, unit->inv_queue_tail); in dmar_qi_advance_tail()
121 unit->inv_queue_avail = head - unit->inv_queue_tail - in dmar_qi_ensure()
123 if (head <= unit->inv_queue_tail) in dmar_qi_ensure()
148 unit->inv_queue_tail += DMAR_IQ_DESCR_SZ / 2; in dmar_qi_emit()
149 KASSERT(unit->inv_queue_tail <= unit->inv_queue_size, in dmar_qi_emit()
150 ("tail overflow 0x%x 0x%jx", unit->inv_queue_tail, in dmar_qi_emit()
152 unit->inv_queue_tail &= unit->inv_queue_size - 1; in dmar_qi_emit()
154 unit->inv_queue_tail += DMAR_IQ_DESCR_SZ / 2; in dmar_qi_emit()
155 KASSERT(unit->inv_queue_tail <= unit->inv_queue_size, in dmar_qi_emit()
156 ("tail overflow 0x%x 0x%jx", unit->inv_queue_tail, in dmar_qi_emit()
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H A Dintel_dmar.h164 uint32_t inv_queue_tail; member