On 12/08/16 12:20, David Weinehall wrote:
drm/i915: debugfs spring cleaning
Just like with sysfs, we do some major overhaul.
Pass dev_priv instead of dev to all feature macros (IS_, HAS_,
INTEL_, etc.). This has the side effect that a bunch of functions
now get dev_priv passed instead of dev.
All calls to INTEL_INFO()->gen have been replaced with
INTEL_GEN().
We want access to to_i915(node->minor->dev) in a lot of places,
so add the node_to_i915() helper to accomodate for this.
Finally, we have quite a few cases where we get a void * pointer,
and need to cast it to drm_device *, only to run to_i915() on it.
Add cast_to_i915() to do this.
v2: Don't introduce extra dev (Chris)
v3: Make pipe_crc_info have a pointer to drm_i915_private instead of
drm_device. This saves a bit of space, since we never use
drm_device anywhere in these functions.
Also some minor fixup that I missed in the previous version.
Signed-off-by: David Weinehall <david.weinehall@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_debugfs.c | 749 ++++++++++++++++--------------------
drivers/gpu/drm/i915/i915_drv.c | 2 +-
drivers/gpu/drm/i915/i915_drv.h | 8 +-
3 files changed, 342 insertions(+), 417 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 3eee5d1255f6..07bceac64e6d 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -46,6 +46,11 @@ enum {
PINNED_LIST,
};
+static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
+{
+ return to_i915(node->minor->dev);
+}
Alternatively (noting that almost the only use we make of this
drm_info_node is to indirect multiple times to get dev_priv), we could
change what is stored in (struct seq_file).private to make it more
convenient and/or efficient. For example,
struct i915_debugfs_node {
struct drm_i915_private *dev_priv;
struct drm_info_node drm_info; // if still required
};
thus eliminating several memory cycles per use for a cost of one word
extra data per debugfs node.
.Dave.
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