tree: git://anongit.freedesktop.org/drm-intel for-linux-next
head: 31685c258e0b0ad6aa486c5ec001382cf8a64212
commit: 31685c258e0b0ad6aa486c5ec001382cf8a64212 [143/143] drm/i915/vlv: WA for
Turbo and RC6 to work together.
drivers/gpu/drm/i915/i915_irq.c:1385 vlv_calc_delay_from_C0_counters() warn:
impossible condition '(adj < 0) => (0-255 < 0)'
git remote add drm-intel git://anongit.freedesktop.org/drm-intel
git remote update drm-intel
git checkout 31685c258e0b0ad6aa486c5ec001382cf8a64212
vim +1385 drivers/gpu/drm/i915/i915_irq.c
31685c25 Deepak S 2014-07-03 1369 adj *= 2;
31685c25 Deepak S 2014-07-03 1370 else
31685c25 Deepak S 2014-07-03 1371 adj = 1;
31685c25 Deepak S 2014-07-03 1372
31685c25 Deepak S 2014-07-03 1373 if (dev_priv->rps.cur_freq <
dev_priv->rps.max_freq_softlimit)
31685c25 Deepak S 2014-07-03 1374 new_delay =
dev_priv->rps.cur_freq + adj;
31685c25 Deepak S 2014-07-03 1375
31685c25 Deepak S 2014-07-03 1376 /*
31685c25 Deepak S 2014-07-03 1377 * For better performance, jump
directly
31685c25 Deepak S 2014-07-03 1378 * to RPe if we're below it.
31685c25 Deepak S 2014-07-03 1379 */
31685c25 Deepak S 2014-07-03 1380 if (new_delay <
dev_priv->rps.efficient_freq)
31685c25 Deepak S 2014-07-03 1381 new_delay =
dev_priv->rps.efficient_freq;
31685c25 Deepak S 2014-07-03 1382
31685c25 Deepak S 2014-07-03 1383 } else if
(!dev_priv->rps.ei_interrupt_count &&
31685c25 Deepak S 2014-07-03 1384 (residency_C0_down <
VLV_RP_DOWN_EI_THRESHOLD)) {
31685c25 Deepak S 2014-07-03 @1385 if (adj < 0)
31685c25 Deepak S 2014-07-03 1386 adj *= 2;
31685c25 Deepak S 2014-07-03 1387 else
31685c25 Deepak S 2014-07-03 1388 adj = -1;
31685c25 Deepak S 2014-07-03 1389 /*
31685c25 Deepak S 2014-07-03 1390 * This means, C0 residency is
less than down threshold over
31685c25 Deepak S 2014-07-03 1391 * a period of
VLV_INT_COUNT_FOR_DOWN_EI. So, reduce the freq
31685c25 Deepak S 2014-07-03 1392 */
31685c25 Deepak S 2014-07-03 1393 if (dev_priv->rps.cur_freq >
dev_priv->rps.min_freq_softlimit)
---
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