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drm/i915/gt: Use the RPM config register to determine clk frequencies

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For many configuration details within RC6 and RPS we are programming
intervals for the internal clocks. From gen11, these clocks are
configuration via the RPM_CONFIG and so for convenience, we would like
to convert to/from more natural units (ns).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200424162805.25920-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2020-04-24 17:28:05 +01:00
parent 555a322429
commit 9c878557b1
11 changed files with 228 additions and 74 deletions
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34
drivers/gpu/drm/i915/i915_debugfs.c
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@@ -32,6 +32,7 @@
#include <drm/drm_debugfs.h>
#include "gem/i915_gem_context.h"
#include "gt/intel_gt_clock_utils.h"
#include "gt/intel_gt_pm.h"
#include "gt/intel_gt_requests.h"
#include "gt/intel_reset.h"
@@ -926,21 +927,30 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
seq_printf(m, "CAGF: %dMHz\n", cagf);
seq_printf(m, "RP CUR UP EI: %d (%dus)\n",
rpupei, GT_PM_INTERVAL_TO_US(dev_priv, rpupei));
seq_printf(m, "RP CUR UP: %d (%dus)\n",
rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup));
seq_printf(m, "RP PREV UP: %d (%dus)\n",
rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup));
seq_printf(m, "RP CUR UP EI: %d (%dns)\n",
rpupei,
intel_gt_pm_interval_to_ns(&dev_priv->gt, rpupei));
seq_printf(m, "RP CUR UP: %d (%dun)\n",
rpcurup,
intel_gt_pm_interval_to_ns(&dev_priv->gt, rpcurup));
seq_printf(m, "RP PREV UP: %d (%dns)\n",
rpprevup,
intel_gt_pm_interval_to_ns(&dev_priv->gt, rpprevup));
seq_printf(m, "Up threshold: %d%%\n",
rps->power.up_threshold);
seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei));
seq_printf(m, "RP CUR DOWN: %d (%dus)\n",
rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown));
seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown));
seq_printf(m, "RP CUR DOWN EI: %d (%dns)\n",
rpdownei,
intel_gt_pm_interval_to_ns(&dev_priv->gt,
rpdownei));
seq_printf(m, "RP CUR DOWN: %d (%dns)\n",
rpcurdown,
intel_gt_pm_interval_to_ns(&dev_priv->gt,
rpcurdown));
seq_printf(m, "RP PREV DOWN: %d (%dns)\n",
rpprevdown,
intel_gt_pm_interval_to_ns(&dev_priv->gt,
rpprevdown));
seq_printf(m, "Down threshold: %d%%\n",
rps->power.down_threshold);