drm/i915: Rename for_each_plane -> for_each_universal_plane

This macro's name is a bit misleading; it doesn't actually iterate over
all planes since it omits the cursor plane.  Its only uses are in gen9
code which is using it to iterate over the universal planes (which we
treat as primary+sprites); in these cases the legacy cursor registers
are programmed independently if necessary.  The macro's iterator value
(0 for primary plane, spritenum+1 for each secondary plane) also isn't
meaningful outside the gen9 context where the hardware considers them to
all be "universal" planes that follow this numbering.

This is just a renaming/clarification patch with no functional change.
However it will make the subsequent patches more clear.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1477522291-10874-2-git-send-email-matthew.d.roper@intel.com
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>

4 files changed, 4 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index be92efe3453f..9f5a39209f52 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3463,7 +3463,7 @@ static int i915_ddb_info(struct seq_file *m, void *unused)
 	for_each_pipe(dev_priv, pipe) {
 		seq_printf(m, "Pipe %c\n", pipe_name(pipe));
 
-		for_each_plane(dev_priv, pipe, plane) {
+		for_each_universal_plane(dev_priv, pipe, plane) {
 			entry = &ddb->plane[pipe][plane];
 			seq_printf(m, "  Plane%-8d%8u%8u%8u\n", plane + 1,
 				   entry->start, entry->end,
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a8f006e3b45d..930503aac46d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -312,7 +312,7 @@ struct i915_hotplug {
 #define for_each_pipe_masked(__dev_priv, __p, __mask) \
 	for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++) \
 		for_each_if ((__mask) & (1 << (__p)))
-#define for_each_plane(__dev_priv, __pipe, __p)				\
+#define for_each_universal_plane(__dev_priv, __pipe, __p)		\
 	for ((__p) = 0;							\
 	     (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1;	\
 	     (__p)++)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 895b3dc50e3f..cb7dd11277fd 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13485,7 +13485,7 @@ static void verify_wm_state(struct drm_crtc *crtc,
 	sw_ddb = &dev_priv->wm.skl_hw.ddb;
 
 	/* planes */
-	for_each_plane(dev_priv, pipe, plane) {
+	for_each_universal_plane(dev_priv, pipe, plane) {
 		hw_plane_wm = &hw_wm.planes[plane];
 		sw_plane_wm = &sw_wm->planes[plane];
 
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 9e0e8741253e..58d3ba05b219 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3160,7 +3160,7 @@ void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
 		if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 			continue;
 
-		for_each_plane(dev_priv, pipe, plane) {
+		for_each_universal_plane(dev_priv, pipe, plane) {
 			val = I915_READ(PLANE_BUF_CFG(pipe, plane));
 			skl_ddb_entry_init_from_hw(&ddb->plane[pipe][plane],
 						   val);