For convenience when debugging user issues show the autotuning RPS parameters in debugfs/i915_rps_boost_info.
Signed-off-by: Chris Wilson <[email protected]> Cc: Rainer Hochecker <[email protected]> --- drivers/gpu/drm/i915/i915_debugfs.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 4ad2355f510a..d7c2064c28bd 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2340,6 +2340,16 @@ static int count_irq_waiters(struct drm_i915_private *i915) return count; } +static const char *rps_power_to_str(int power) +{ + switch (power) { + default: return "unknown"; + case LOW_POWER: return "low power"; + case BETWEEN: return "mixed"; + case HIGH_POWER: return "high power"; + } +} + static int i915_rps_boost_info(struct seq_file *m, void *data) { struct drm_info_node *node = m->private; @@ -2377,6 +2387,27 @@ static int i915_rps_boost_info(struct seq_file *m, void *data) spin_unlock(&dev_priv->rps.client_lock); mutex_unlock(&dev->filelist_mutex); + if (INTEL_GEN(dev_priv) >= 6) { + u32 rpupei, rpcurup; + u32 rpdownei, rpcurdown; + + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); + rpupei = I915_READ_FW(GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK; + rpcurup = I915_READ_FW(GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK; + rpdownei = I915_READ_FW(GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK; + rpcurdown = I915_READ_FW(GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK; + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); + + seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n", + rps_power_to_str(dev_priv->rps.power)); + seq_printf(m, " Avg. busy: %d%% [threshold %d%%]\n", + 100*rpcurup/rpupei, + dev_priv->rps.up_threshold); + seq_printf(m, " Avg. idle: %d%% [threshold %d%%]\n", + 100*rpcurdown/rpdownei, + dev_priv->rps.down_threshold); + } + return 0; } -- 2.8.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
