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authorAkash Goel <akash.goel@intel.com>2015-03-06 06:37:21 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-03-17 22:30:26 +0100
commit60260a5b59f7733fe5e3f5c2e39dfb3291ffb94f (patch)
treed719d9e3043a6ebe6c82d4c6f7be91c49f7278fa /drivers/gpu/drm/i915/i915_debugfs.c
parentdrm/i915: Simplify the way BC bifurcation state consistency is kept (diff)
downloadlinux-60260a5b59f7733fe5e3f5c2e39dfb3291ffb94f.tar.xz
linux-60260a5b59f7733fe5e3f5c2e39dfb3291ffb94f.zip
drm/i915/skl: Updated the i915_frequency_info debugfs function
Added support for SKL in the i915_frequency_info debugfs function v2: - corrected the handling of reqf (Damien) - Reorderd the platform check for cagf (Ville) Signed-off-by: Akash Goel <akash.goel@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
-rw-r--r--drivers/gpu/drm/i915/i915_debugfs.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 74bc89bf8914..1a52d6ab0f80 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1090,7 +1090,7 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
seq_printf(m, "Current P-state: %d\n",
(rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
} else if (IS_GEN6(dev) || (IS_GEN7(dev) && !IS_VALLEYVIEW(dev)) ||
- IS_BROADWELL(dev)) {
+ IS_BROADWELL(dev) || IS_GEN9(dev)) {
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);
@@ -1109,11 +1109,15 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
reqf = I915_READ(GEN6_RPNSWREQ);
- reqf &= ~GEN6_TURBO_DISABLE;
- if (IS_HASWELL(dev) || IS_BROADWELL(dev))
- reqf >>= 24;
- else
- reqf >>= 25;
+ if (IS_GEN9(dev))
+ reqf >>= 23;
+ else {
+ reqf &= ~GEN6_TURBO_DISABLE;
+ if (IS_HASWELL(dev) || IS_BROADWELL(dev))
+ reqf >>= 24;
+ else
+ reqf >>= 25;
+ }
reqf = intel_gpu_freq(dev_priv, reqf);
rpmodectl = I915_READ(GEN6_RP_CONTROL);
@@ -1127,7 +1131,9 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI);
rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
- if (IS_HASWELL(dev) || IS_BROADWELL(dev))
+ if (IS_GEN9(dev))
+ cagf = (rpstat & GEN9_CAGF_MASK) >> GEN9_CAGF_SHIFT;
+ else if (IS_HASWELL(dev) || IS_BROADWELL(dev))
cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
else
cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
@@ -1153,7 +1159,7 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
pm_ier, pm_imr, pm_isr, pm_iir, pm_mask);
seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
seq_printf(m, "Render p-state ratio: %d\n",
- (gt_perf_status & 0xff00) >> 8);
+ (gt_perf_status & (IS_GEN9(dev) ? 0x1ff00 : 0xff00)) >> 8);
seq_printf(m, "Render p-state VID: %d\n",
gt_perf_status & 0xff);
seq_printf(m, "Render p-state limit: %d\n",
@@ -1178,14 +1184,17 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
GEN6_CURBSYTAVG_MASK);
max_freq = (rp_state_cap & 0xff0000) >> 16;
+ max_freq *= (IS_SKYLAKE(dev) ? GEN9_FREQ_SCALER : 1);
seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
intel_gpu_freq(dev_priv, max_freq));
max_freq = (rp_state_cap & 0xff00) >> 8;
+ max_freq *= (IS_SKYLAKE(dev) ? GEN9_FREQ_SCALER : 1);
seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
intel_gpu_freq(dev_priv, max_freq));
max_freq = rp_state_cap & 0xff;
+ max_freq *= (IS_SKYLAKE(dev) ? GEN9_FREQ_SCALER : 1);
seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
intel_gpu_freq(dev_priv, max_freq));