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/Linux-v4.19/Documentation/driver-api/dmaengine/
Dpxa_dma.rst51 | desc-sg[0] | ... | desc-sg[last] | status updater | finisher/linker |
60 - status updater
109 d) Transfers completion updater
112 descriptor of a transfer, the "status updater", will write the latest
127 - reading the physical channel last updater mark
134 updater mark.
/Linux-v4.19/drivers/dma/
Dpxa_dma.c568 struct pxad_desc_hw *updater = in set_updater_desc() local
572 updater->ddadr = DDADR_STOP; in set_updater_desc()
573 updater->dsadr = dma; in set_updater_desc()
574 updater->dtadr = dma + 8; in set_updater_desc()
575 updater->dcmd = PXA_DCMD_WIDTH4 | PXA_DCMD_BURST32 | in set_updater_desc()
578 updater->dcmd |= PXA_DCMD_ENDIRQEN; in set_updater_desc()
586 struct pxad_desc_hw *updater = in is_desc_completed() local
589 return updater->dtadr != (updater->dsadr + 8); in is_desc_completed()
/Linux-v4.19/Documentation/RCU/
Drcu_dereference.txt205 void updater(void)
240 but you should not be. After all, the updater might have been invoked
258 void updater(void)
321 void updater(void)
DwhatisRCU.txt69 updater to perform the removal phase immediately, and to defer the
94 prevent an updater from deleting the data structure out from under them.
105 In the three-step procedure shown above, the updater is performing both
164 Marks the end of updater code and the beginning of reclaimer
221 The updater uses this function to assign a new value to an
223 in value from the updater to the reader. This function returns
296 reader, updater, and reclaimer.
309 | updater |<---------------------+ |
433 This primitive protects concurrent readers from the updater,
521 RCU distinction between updater, namely foo_update_a(), and reclaimer,
Dlockdep.txt84 from taking place. If the above statement was invoked only from updater
Drcu.txt27 o How can the updater tell when a grace period has completed
Dchecklist.txt215 7. If the updater uses call_rcu() or synchronize_rcu(), then the
217 rcu_read_unlock(). If the updater uses call_rcu_bh() or
220 updater uses call_rcu_sched() or synchronize_sched(), then
223 If the updater uses synchronize_srcu() or call_srcu(), then
DRTFP.txt203 between memory barriers and read-side traversal order: If the updater
205 order, the updater need only execute a memory-barrier instruction,
206 but if in the same direction, the updater needs to wait for a grace
2641 If the updater is making changes in the opposite direction from
2642 the read-side traveral order, the updater need only execute a
2644 updater needs to wait for a grace period between the individual
Drcubarrier.txt22 pre-existing readers have completed. An updater wishing to delete an
/Linux-v4.19/Documentation/sound/kernel-api/
Dwriting-an-alsa-driver.rst2157 /* call updater, unlock before it */
2210 /* call updater */