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| author | Damien Lespiau <damien.lespiau@intel.com> | 2015-10-30 18:53:32 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2015-11-09 20:15:16 +0300 |
| commit | 8337206d3bf088c9f60ada7a71188b7f4b4ec2eb (patch) | |
| tree | de2a02dcdf7b15d23f6fda0da64bc0d2a7b3b4ef /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | b7cec66de119ae9f0dc1ed5aeb92f32ab40acf1e (diff) | |
| download | linux-8337206d3bf088c9f60ada7a71188b7f4b4ec2eb.tar.xz | |
drm/i915/skl: Expose DC5/DC6 entry counts
The CSR firmware expose two counters, handy to check if we are indeed
entering DC5/DC6.
v2: Rebase
v3: Take RPM ref before reading (Imre)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> (v1)
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446220412-32574-1-git-send-email-mika.kuoppala@intel.com
Tested-by: Daniel Stone <daniels@collabora.com> # SKL
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 847753dd47ab..bf04f5bda324 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2811,6 +2811,17 @@ static int i915_dmc_info(struct seq_file *m, void *unused) seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version), CSR_VERSION_MINOR(csr->version)); + intel_runtime_pm_get(dev_priv); + + if (IS_SKYLAKE(dev) && csr->version >= CSR_VERSION(1, 6)) { + seq_printf(m, "DC3 -> DC5 count: %d\n", + I915_READ(SKL_CSR_DC3_DC5_COUNT)); + seq_printf(m, "DC5 -> DC6 count: %d\n", + I915_READ(SKL_CSR_DC5_DC6_COUNT)); + } + + intel_runtime_pm_put(dev_priv); + return 0; } |