drm/xe: Clarify 'gt' retrieval for primary tile

There are a bunch of places in the driver where we need to perform
non-GT MMIO against the platform's primary tile (display code, top-level
interrupt enable/disable, driver initialization, etc.).  Rename
'to_gt()' to 'xe_primary_mmio_gt()' to clarify that we're trying to get
a primary MMIO handle for these top-level operations.

In the future we need to move away from xe_gt as the target for MMIO
operations (most of which are completely unrelated to GT).

v2:
 - s/xe_primary_mmio_gt/xe_root_mmio_gt/ for more consistency with how
   we refer to tile 0.  (Lucas)
v3:
 - Tweak comment on xe_root_mmio_gt().  (Lucas)

Acked-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20230601215244.678611-16-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/xe/xe_query.c b/drivers/gpu/drm/xe/xe_query.c
index 799bf68800e7..8087c94dd782 100644
--- a/drivers/gpu/drm/xe/xe_query.c
+++ b/drivers/gpu/drm/xe/xe_query.c
@@ -259,7 +259,7 @@ static int query_gts(struct xe_device *xe, struct drm_xe_device_query *query)
 static int query_hwconfig(struct xe_device *xe,
 			  struct drm_xe_device_query *query)
 {
-	struct xe_gt *gt = xe_device_get_gt(xe, 0);
+	struct xe_gt *gt = xe_root_mmio_gt(xe);
 	size_t size = xe_guc_hwconfig_size(&gt->uc.guc);
 	void __user *query_ptr = u64_to_user_ptr(query->data);
 	void *hwconfig;