[Intel-xe] [PATCH 07/15] drm/xe/xe2: AuxCCS is no longer used

[Lucas De Marchi]

From: Matt Roper <matthew.d.roper at intel.com>

Starting with Xe2, all platforms (including igpu platforms) use FlatCCS
compression rather than AuxCCS.  Similar to PVC, any future platforms
that don't support FlatCCS should not attempt to fall back to AuxCCS
programming.

Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/xe/xe_ring_ops.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_ring_ops.c b/drivers/gpu/drm/xe/xe_ring_ops.c
index 4a474ab04f96a..8c50ab4fdc6a0 100644
--- a/drivers/gpu/drm/xe/xe_ring_ops.c
+++ b/drivers/gpu/drm/xe/xe_ring_ops.c
@@ -242,9 +242,11 @@ static bool has_aux_ccs(struct xe_device *xe)
 {
 	/*
 	 * PVC is a special case that has no compression of either type
-	 * (FlatCCS or AuxCCS).
+	 * (FlatCCS or AuxCCS).  Also, AuxCCS is no longer used from Xe2
+	 * onward, so any future platforms with no FlatCCS will not have
+	 * AuxCCS either.
 	 */
-	if (xe->info.platform == XE_PVC)
+	if (GRAPHICS_VER(xe) >= 20 || xe->info.platform == XE_PVC)
 		return false;
 
 	return !xe->info.has_flat_ccs;
-- 
2.40.1