[PATCH 2/2] drm/i915: Add the has_aux_ccs device property

[Andi Shyti]

We always assumed that a device might either have AUX or FLAT
CCS, but this is an approximation that is not always true as it
requires some further per device checks.

Add the "has_aux_ccs" flag in the intel_device_info structure in
order to have a per device flag indicating of the AUX CCS.

Signed-off-by: Andi Shyti <andi.shyti at linux.intel.com>
Cc: Matt Roper <matthew.d.roper at intel.com>
Cc: Jonathan Cavitt <jonathan.cavitt at intel.com>
Cc: <stable at vger.kernel.org> # v5.8+
---
 drivers/gpu/drm/i915/gt/gen8_engine_cs.c | 4 ++--
 drivers/gpu/drm/i915/i915_drv.h          | 1 +
 drivers/gpu/drm/i915/i915_pci.c          | 5 ++++-
 drivers/gpu/drm/i915/intel_device_info.h | 1 +
 4 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
index 563efee055602..0d4d5e0407a2d 100644
--- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
@@ -267,7 +267,7 @@ int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode)
 		else if (engine->class == COMPUTE_CLASS)
 			flags &= ~PIPE_CONTROL_3D_ENGINE_FLAGS;
 
-		if (!HAS_FLAT_CCS(rq->engine->i915))
+		if (HAS_AUX_CCS(rq->engine->i915))
 			count = 8 + 4;
 		else
 			count = 8;
@@ -307,7 +307,7 @@ int gen12_emit_flush_xcs(struct i915_request *rq, u32 mode)
 	if (mode & EMIT_INVALIDATE) {
 		cmd += 2;
 
-		if (!HAS_FLAT_CCS(rq->engine->i915) &&
+		if (HAS_AUX_CCS(rq->engine->i915) &&
 		    (rq->engine->class == VIDEO_DECODE_CLASS ||
 		     rq->engine->class == VIDEO_ENHANCEMENT_CLASS)) {
 			aux_inv = rq->engine->mask &
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 682ef2b5c7d59..e9cc048b5727a 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -848,6 +848,7 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
  * stored in lmem to support the 3D and media compression formats.
  */
 #define HAS_FLAT_CCS(i915)   (INTEL_INFO(i915)->has_flat_ccs)
+#define HAS_AUX_CCS(i915)    (INTEL_INFO(i915)->has_aux_ccs)
 
 #define HAS_GT_UC(i915)	(INTEL_INFO(i915)->has_gt_uc)
 
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index fcacdc21643cf..c9ff1d11a9fce 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -643,7 +643,8 @@ static const struct intel_device_info jsl_info = {
 	TGL_CACHELEVEL, \
 	.has_global_mocs = 1, \
 	.has_pxp = 1, \
-	.max_pat_index = 3
+	.max_pat_index = 3, \
+	.has_aux_ccs = 1
 
 static const struct intel_device_info tgl_info = {
 	GEN12_FEATURES,
@@ -775,6 +776,7 @@ static const struct intel_device_info dg2_info = {
 
 static const struct intel_device_info ats_m_info = {
 	DG2_FEATURES,
+	.has_aux_ccs = 1,
 	.require_force_probe = 1,
 	.tuning_thread_rr_after_dep = 1,
 };
@@ -827,6 +829,7 @@ static const struct intel_device_info mtl_info = {
 	.__runtime.media.ip.ver = 13,
 	PLATFORM(INTEL_METEORLAKE),
 	.extra_gt_list = xelpmp_extra_gt,
+	.has_aux_ccs = 1,
 	.has_flat_ccs = 0,
 	.has_gmd_id = 1,
 	.has_guc_deprivilege = 1,
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index dbfe6443457b5..93485507506cc 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -151,6 +151,7 @@ enum intel_ppgtt_type {
 	func(has_reset_engine); \
 	func(has_3d_pipeline); \
 	func(has_4tile); \
+	func(has_aux_ccs); \
 	func(has_flat_ccs); \
 	func(has_global_mocs); \
 	func(has_gmd_id); \
-- 
2.40.1