drm/xe: Add for_each_gt_with_type() iterator

There are a couple places in the driver today that have GT loops that
only need to operate on a specific type of GT.  E.g.,

        for_each_gt(...) {
                if (xe_gt_is_media_type(gt))
                        continue;
                ...
        }

Some upcoming development is expected to utilize this pattern a bit more
widely, so add a dedicated iterator that allows looping over specific GT
type(s).

Note that this iterator uses a mask for the "type" parameter rather than
a direct value match.  That's probably a bit overkill for now given that
there are only two possible types of GTs, but if additional types of GTs
ever show up in the future, this approach will fit more naturally and
allow cases where we might want to loop over a subset of the possible
types, or specifically mask off one single type.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260305-gt-type-loops-v1-1-aa42e9fc3f06@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_device.h b/drivers/gpu/drm/xe/xe_device.h
index 39464650533b5fd9aa7d9fc3dd432710303311b5..c4d26700266115f91330cff0a115a716e6899c50 100644 (file)
--- a/drivers/gpu/drm/xe/xe_device.h
+++ b/drivers/gpu/drm/xe/xe_device.h
@@ -131,6 +131,10 @@ static inline bool xe_device_uc_enabled(struct xe_device *xe)
        for ((id__) = 0; (id__) < (xe__)->info.tile_count * (xe__)->info.max_gt_per_tile; (id__)++) \
                for_each_if((gt__) = xe_device_get_gt((xe__), (id__)))
 
+#define for_each_gt_with_type(gt__, xe__, id__, typemask__) \
+       for_each_gt((gt__), (xe__), (id__)) \
+               for_each_if((typemask__) & BIT((gt__)->info.type))
+
 #define for_each_gt_on_tile(gt__, tile__, id__) \
        for_each_gt((gt__), (tile__)->xe, (id__)) \
                for_each_if((gt__)->tile == (tile__))