[PATCH 55/66] drm/i915: Add a debugfs file for the shared dpll state

Daniel Vetter
2014-04-24T21:57:08Z

drivers/gpu/drm/i915/i915_debugfs.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 1e83ae45041c..c99951fdc572 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2370,6 +2370,31 @@ static int i915_display_info(struct seq_file *m, void *unused)
return 0;
}

+static int i915_shared_dplls_info(struct seq_file *m, void *unused)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int i;
+
+ drm_modeset_lock_all(dev);
+ for (i = 0; i < dev_priv->num_shared_dpll; i++) {
+ struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
+
+ seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
+ seq_printf(m, " refcount: %i, active: %i, on: %s\n", pll->refcount,
+ pll->active, yesno(pll->on));
+ seq_printf(m, " tracked hardware state:\n");
+ seq_printf(m, " dpll: 0x%08x\n", pll->hw_state.dpll);
+ seq_printf(m, " dpll_md: 0x%08x\n", pll->hw_state.dpll_md);
+ seq_printf(m, " fp0: 0x%08x\n", pll->hw_state.fp0);
+ seq_printf(m, " fp1: 0x%08x\n", pll->hw_state.fp1);
+ }
+ drm_modeset_unlock_all(dev);
+
+ return 0;
+}
+
struct pipe_crc_info {
const char *name;
struct drm_device *dev;
@@ -3811,6 +3836,7 @@ static const struct drm_info_list i915_debugfs_list[] = {
{"i915_pc8_status", i915_pc8_status, 0},
{"i915_power_domain_info", i915_power_domain_info, 0},
{"i915_display_info", i915_display_info, 0},
+ {"i915_shared_dplls_info", i915_shared_dplls_info, 0},
};
#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)

--
1.8.1.4