Lines Matching full:pch
55 * The code also supports underrun detection on the PCH transcoder.
251 drm_err(&dev_priv->drm, "pch fifo underrun on pch transcoder %c\n", in cpt_check_pch_fifo_underruns()
275 "uncleared pch fifo underrun on pch transcoder %c\n", in cpt_set_fifo_underrun_reporting()
336 * intel_set_pch_fifo_underrun_reporting - set PCH fifo underrun reporting state
338 * @pch_transcoder: the PCH transcoder (same as pipe on IVB and older)
341 * This function makes us disable or enable PCH fifo underruns for a specific
342 * PCH transcoder. Notice that on some PCHs (e.g. CPT/PPT), disabling FIFO
343 * underrun reporting for one transcoder may also disable all the other PCH
359 * NOTE: Pre-LPT has a fixed cpu pipe -> pch transcoder mapping, but LPT in intel_set_pch_fifo_underrun_reporting()
360 * has only one pch transcoder A that all pipes can use. To avoid racy in intel_set_pch_fifo_underrun_reporting()
361 * pch transcoder -> pipe lookups from interrupt code simply store the in intel_set_pch_fifo_underrun_reporting()
444 * intel_pch_fifo_underrun_irq_handler - handle PCH fifo underrun interrupt
446 * @pch_transcoder: the PCH transcoder (same as pipe on IVB and older)
448 * This handles a PCH fifo underrun interrupt, generating an underrun warning
458 drm_err(&dev_priv->drm, "PCH transcoder %c FIFO underrun\n", in intel_pch_fifo_underrun_irq_handler()
492 * intel_check_pch_fifo_underruns - check for PCH fifo underruns immediately
495 * Check for PCH fifo underruns immediately. Useful on CPT/PPT where the shared
496 * error interrupt may have been disabled, and so PCH fifo underruns won't
523 * We track the PCH trancoder underrun reporting state in intel_init_fifo_underrun_reporting()
525 * reporting state for PCH transcoder A, crtc for pipe B housing in intel_init_fifo_underrun_reporting()
526 * it for PCH transcoder B, etc. LPT-H has only PCH transcoder A, in intel_init_fifo_underrun_reporting()
528 * PCH transcoders B and C would prevent enabling the south in intel_init_fifo_underrun_reporting()