From: Chris Wilson <ch...@chris-wilson.co.uk>
It can be useful to compare at times the current vs requested frequency
of the GPU, so provide the contents of RPNSWREQ alonside CAGF.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_debugfs.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index 55ab924..a6f4cb5 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -857,7 +857,7 @@ static int i915_cur_delayinfo(struct seq_file *m, void
*unused)
u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
u32 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
- u32 rpstat, cagf;
+ u32 rpstat, cagf, reqf;
u32 rpupei, rpcurup, rpprevup;
u32 rpdownei, rpcurdown, rpprevdown;
int max_freq;
@@ -869,6 +869,14 @@ static int i915_cur_delayinfo(struct seq_file *m, void
*unused)
gen6_gt_force_wake_get(dev_priv);
+ reqf = I915_READ(GEN6_RPNSWREQ);
+ reqf &= ~GEN6_TURBO_DISABLE;
+ if (IS_HASWELL(dev))
+ reqf >>= 24;
+ else
+ reqf >>= 25;
+ reqf *= GT_FREQUENCY_MULTIPLIER;
+
rpstat = I915_READ(GEN6_RPSTAT1);
rpupei = I915_READ(GEN6_RP_CUR_UP_EI);
rpcurup = I915_READ(GEN6_RP_CUR_UP);
@@ -893,6 +901,7 @@ static int i915_cur_delayinfo(struct seq_file *m, void
*unused)
gt_perf_status & 0xff);
seq_printf(m, "Render p-state limit: %d\n",
rp_state_limits & 0xff);
+ seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
seq_printf(m, "CAGF: %dMHz\n", cagf);
seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
GEN6_CURICONT_MASK);
--
1.8.1.4
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