drm/i915: fix 64bit divide
ERROR: "__udivdi3" [drivers/gpu/drm/i915/i915.ko] undefined!
ERROR: "__divdi3" [drivers/gpu/drm/i915/i915.ko] undefined!
Store the frequency in kHz and drop 64bit divisions.
v2: Use div64_u64 (Matthew)
v3: store frequency in kHz to avoid 64bit divs (Chris/Ville)
Fixes: dab9178333 ("drm/i915: expose command stream timestamp frequency to userspace")
Reported-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171113233455.12085-3-lionel.g.landwerlin@intel.com
Reviewed-by: Ewelina Musial <ewelina.musial@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 82ff186..6ba08b0 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3269,8 +3269,8 @@ static int i915_engine_info(struct seq_file *m, void *unused)
yesno(dev_priv->gt.awake));
seq_printf(m, "Global active requests: %d\n",
dev_priv->gt.active_requests);
- seq_printf(m, "CS timestamp frequency: %llu Hz\n",
- dev_priv->info.cs_timestamp_frequency);
+ seq_printf(m, "CS timestamp frequency: %u kHz\n",
+ dev_priv->info.cs_timestamp_frequency_khz);
p = drm_seq_file_printer(m);
for_each_engine(engine, dev_priv, id)