diff options
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_rps.c | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c index 785cd58fba76..ff088702c873 100644 --- a/drivers/gpu/drm/i915/gt/intel_rps.c +++ b/drivers/gpu/drm/i915/gt/intel_rps.c @@ -71,6 +71,9 @@ static void rps_enable_interrupts(struct intel_rps *rps) { struct intel_gt *gt = rps_to_gt(rps); + GT_TRACE(gt, "interrupts:on rps->pm_events: %x, rps_pm_mask:%x\n", + rps->pm_events, rps_pm_mask(rps, rps->last_freq)); + rps_reset_ei(rps); spin_lock_irq(>->irq_lock); @@ -128,6 +131,7 @@ static void rps_disable_interrupts(struct intel_rps *rps) cancel_work_sync(&rps->work); rps_reset_interrupts(rps); + GT_TRACE(gt, "interrupts:off\n"); } static const struct cparams { @@ -569,6 +573,10 @@ static void rps_set_power(struct intel_rps *rps, int new_power) if (IS_VALLEYVIEW(i915)) goto skip_hw_write; + GT_TRACE(rps_to_gt(rps), + "changing power mode [%d], up %d%% @ %dus, down %d%% @ %dus\n", + new_power, threshold_up, ei_up, threshold_down, ei_down); + set(uncore, GEN6_RP_UP_EI, GT_INTERVAL_FROM_US(i915, ei_up)); set(uncore, GEN6_RP_UP_THRESHOLD, GT_INTERVAL_FROM_US(i915, ei_up * threshold_up / 100)); @@ -633,6 +641,8 @@ static void gen6_rps_set_thresholds(struct intel_rps *rps, u8 val) void intel_rps_mark_interactive(struct intel_rps *rps, bool interactive) { + GT_TRACE(rps_to_gt(rps), "mark interactive: %s\n", yesno(interactive)); + mutex_lock(&rps->power.mutex); if (interactive) { if (!rps->power.interactive++ && READ_ONCE(rps->active)) @@ -660,6 +670,9 @@ static int gen6_rps_set(struct intel_rps *rps, u8 val) GEN6_AGGRESSIVE_TURBO); set(uncore, GEN6_RPNSWREQ, swreq); + GT_TRACE(rps_to_gt(rps), "set val:%x, freq:%d, swreq:%x\n", + val, intel_gpu_freq(rps, val), swreq); + return 0; } @@ -672,6 +685,9 @@ static int vlv_rps_set(struct intel_rps *rps, u8 val) err = vlv_punit_write(i915, PUNIT_REG_GPU_FREQ_REQ, val); vlv_punit_put(i915); + GT_TRACE(rps_to_gt(rps), "set val:%x, freq:%d\n", + val, intel_gpu_freq(rps, val)); + return err; } @@ -705,6 +721,8 @@ void intel_rps_unpark(struct intel_rps *rps) if (!rps->enabled) return; + GT_TRACE(rps_to_gt(rps), "unpark:%x\n", rps->cur_freq); + /* * Use the user's desired frequency as a guide, but for better * performance, jump directly to RPe as our starting frequency. @@ -772,6 +790,8 @@ void intel_rps_park(struct intel_rps *rps) */ rps->cur_freq = max_t(int, round_down(rps->cur_freq - 1, 2), rps->min_freq); + + GT_TRACE(rps_to_gt(rps), "park:%x\n", rps->cur_freq); } void intel_rps_boost(struct i915_request *rq) @@ -788,6 +808,9 @@ void intel_rps_boost(struct i915_request *rq) !dma_fence_is_signaled_locked(&rq->fence)) { set_bit(I915_FENCE_FLAG_BOOST, &rq->fence.flags); + GT_TRACE(rps_to_gt(rps), "boost fence:%llx:%llx\n", + rq->fence.context, rq->fence.seqno); + if (!atomic_fetch_inc(&rps->num_waiters) && READ_ONCE(rps->cur_freq) < rps->boost_freq) schedule_work(&rps->work); @@ -883,6 +906,7 @@ static void gen6_rps_init(struct intel_rps *rps) static bool rps_reset(struct intel_rps *rps) { struct drm_i915_private *i915 = rps_to_i915(rps); + /* force a reset */ rps->power.mode = -1; rps->last_freq = -1; @@ -1210,11 +1234,17 @@ void intel_rps_enable(struct intel_rps *rps) if (!rps->enabled) return; - drm_WARN_ON(&i915->drm, rps->max_freq < rps->min_freq); - drm_WARN_ON(&i915->drm, rps->idle_freq > rps->max_freq); + GT_TRACE(rps_to_gt(rps), + "min:%x, max:%x, freq:[%d, %d]\n", + rps->min_freq, rps->max_freq, + intel_gpu_freq(rps, rps->min_freq), + intel_gpu_freq(rps, rps->max_freq)); - drm_WARN_ON(&i915->drm, rps->efficient_freq < rps->min_freq); - drm_WARN_ON(&i915->drm, rps->efficient_freq > rps->max_freq); + GEM_BUG_ON(rps->max_freq < rps->min_freq); + GEM_BUG_ON(rps->idle_freq > rps->max_freq); + + GEM_BUG_ON(rps->efficient_freq < rps->min_freq); + GEM_BUG_ON(rps->efficient_freq > rps->max_freq); } static void gen6_rps_disable(struct intel_rps *rps) @@ -1482,6 +1512,12 @@ static void rps_work(struct work_struct *work) max = rps->max_freq_softlimit; if (client_boost) max = rps->max_freq; + + GT_TRACE(gt, + "pm_iir:%x, client_boost:%s, last:%d, cur:%x, min:%x, max:%x\n", + pm_iir, yesno(client_boost), + adj, new_freq, min, max); + if (client_boost && new_freq < rps->boost_freq) { new_freq = rps->boost_freq; adj = 0; @@ -1556,6 +1592,8 @@ void gen11_rps_irq_handler(struct intel_rps *rps, u32 pm_iir) if (unlikely(!events)) return; + GT_TRACE(gt, "irq events:%x\n", events); + gen6_gt_pm_mask_irq(gt, events); rps->pm_iir |= events; @@ -1571,6 +1609,8 @@ void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir) if (events) { spin_lock(>->irq_lock); + GT_TRACE(gt, "irq events:%x\n", events); + gen6_gt_pm_mask_irq(gt, events); rps->pm_iir |= events; |