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drm/i915: Introduce intel_crtc_is_bigjoiner_{slave,master}()

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Introduce helpers to query whether the crtc is the slave/master
for bigjoiner. This decouples most places from the exact
state layout we use to track this relationship, allowing us
to change and extend it more easily.

Performed with cocci:
@@
expression S, E;
@@
(
  S->bigjoiner_slave = E;
|
- S->bigjoiner_slave
+ intel_crtc_is_bigjoiner_slave(S)
)

@@
expression S, E;
@@
(
- E && S->bigjoiner && !intel_crtc_is_bigjoiner_slave(S)
+ E && intel_crtc_is_bigjoiner_master(S)
|
- S->bigjoiner && !intel_crtc_is_bigjoiner_slave(S)
+ intel_crtc_is_bigjoiner_master(S)
)

@@
expression S;
@@
- (intel_crtc_is_bigjoiner_master(S))
+ intel_crtc_is_bigjoiner_master(S)

@@
expression S, E1, E2, E3;
@@
- intel_crtc_is_bigjoiner_slave(S) ? E1 : S->bigjoiner ? E2 : E3
+ intel_crtc_is_bigjoiner_slave(S) ? E1 : intel_crtc_is_bigjoiner_master(S) ? E2 : E3

@@
typedef bool;
@@
+ bool intel_crtc_is_bigjoiner_slave(const struct intel_crtc_state *crtc_state)
+ {
+ 	return crtc_state->bigjoiner_slave;
+ }
+
  intel_master_crtc(...) {...}

@@
typedef bool;
@@
+ bool intel_crtc_is_bigjoiner_master(const struct intel_crtc_state *crtc_state)
+ {
+ 	return crtc_state->bigjoiner && !crtc_state->bigjoiner_slave;
+ }
+
  intel_master_crtc(...) {...}

@@
typedef bool;
identifier S;
@@
- bool is_trans_port_sync_mode(const struct intel_crtc_state *S);
+ bool is_trans_port_sync_mode(const struct intel_crtc_state *state);
+ bool intel_crtc_is_bigjoiner_slave(const struct intel_crtc_state *crtc_state);
+ bool intel_crtc_is_bigjoiner_master(const struct intel_crtc_state *crtc_state);

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220203183823.22890-7-ville.syrjala@linux.intel.com
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
This commit is contained in:
Ville Syrjälä
2022-02-03 20:38:19 +02:00
parent b60668cb4c
commit df52905359
6 changed files with 39 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/display/intel_display_debugfs.c
View File

@@ -939,7 +939,7 @@ static void intel_crtc_info(struct seq_file *m, struct intel_crtc *crtc)
seq_printf(m, "\tLinked to [CRTC:%d:%s] as a %s\n",
crtc_state->bigjoiner_linked_crtc->base.base.id,
crtc_state->bigjoiner_linked_crtc->base.name,
crtc_state->bigjoiner_slave ? "slave" : "master");
intel_crtc_is_bigjoiner_slave(crtc_state) ? "slave" : "master");
for_each_intel_encoder_mask(&dev_priv->drm, encoder,
crtc_state->uapi.encoder_mask)