drm/i915: get/put runtime PM in more places at i915_debugfs.c

These are places where we read (not write) registers while we're
runtime suspended.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 6e668fa..8c5e3d0 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1348,6 +1348,8 @@ static int i915_fbc_status(struct seq_file *m, void *unused)
                return 0;
        }
 
+       intel_runtime_pm_get(dev_priv);
+
        if (intel_fbc_enabled(dev)) {
                seq_puts(m, "FBC enabled\n");
        } else {
@@ -1391,6 +1393,9 @@ static int i915_fbc_status(struct seq_file *m, void *unused)
                }
                seq_putc(m, '\n');
        }
+
+       intel_runtime_pm_put(dev_priv);
+
        return 0;
 }
 
@@ -1405,11 +1410,15 @@ static int i915_ips_status(struct seq_file *m, void *unused)
                return 0;
        }
 
+       intel_runtime_pm_get(dev_priv);
+
        if (IS_BROADWELL(dev) || I915_READ(IPS_CTL) & IPS_ENABLE)
                seq_puts(m, "enabled\n");
        else
                seq_puts(m, "disabled\n");
 
+       intel_runtime_pm_put(dev_priv);
+
        return 0;
 }
 
@@ -1420,6 +1429,8 @@ static int i915_sr_status(struct seq_file *m, void *unused)
        drm_i915_private_t *dev_priv = dev->dev_private;
        bool sr_enabled = false;
 
+       intel_runtime_pm_get(dev_priv);
+
        if (HAS_PCH_SPLIT(dev))
                sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
        else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev))
@@ -1429,6 +1440,8 @@ static int i915_sr_status(struct seq_file *m, void *unused)
        else if (IS_PINEVIEW(dev))
                sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
 
+       intel_runtime_pm_put(dev_priv);
+
        seq_printf(m, "self-refresh: %s\n",
                   sr_enabled ? "enabled" : "disabled");
 
@@ -1974,12 +1987,16 @@ static int i915_energy_uJ(struct seq_file *m, void *data)
        if (INTEL_INFO(dev)->gen < 6)
                return -ENODEV;
 
+       intel_runtime_pm_get(dev_priv);
+
        rdmsrl(MSR_RAPL_POWER_UNIT, power);
        power = (power & 0x1f00) >> 8;
        units = 1000000 / (1 << power); /* convert to uJ */
        power = I915_READ(MCH_SECP_NRG_STTS);
        power *= units;
 
+       intel_runtime_pm_put(dev_priv);
+
        seq_printf(m, "%llu", (long long unsigned)power);
 
        return 0;