[Intel-gfx] [PATCH 1/9] drm/i915: Introduce has_media_ratio_mode

[Ashutosh Dixit]

Media ratio mode (the ability for media IP to work at a different frequency
from the GT) is available for a subset of dGfx platforms supporting
GuC/SLPC. Introduce 'has_media_ratio_mode' flag in intel_device_info to
identify these platforms and set it for XEHPSDV and DG2/ATS-M.

Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit at intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h          | 2 ++
 drivers/gpu/drm/i915/i915_pci.c          | 2 ++
 drivers/gpu/drm/i915/intel_device_info.h | 1 +
 3 files changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index edc1f45f4161..8ad321775e5a 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1224,6 +1224,8 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 #define CCS_MASK(gt) \
 	ENGINE_INSTANCES_MASK(gt, CCS0, I915_MAX_CCS)
 
+#define HAS_MEDIA_RATIO_MODE(dev_priv) (INTEL_INFO(dev_priv)->has_media_ratio_mode)
+
 /*
  * The Gen7 cmdparser copies the scanned buffer to the ggtt for execution
  * All later gens can run the final buffer from the ppgtt
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 09e115cdbd31..fe50e6286a36 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -1032,6 +1032,7 @@ static const struct intel_device_info xehpsdv_info = {
 	.display = { },
 	.has_64k_pages = 1,
 	.needs_compact_pt = 1,
+	.has_media_ratio_mode = 1,
 	.platform_engine_mask =
 		BIT(RCS0) | BIT(BCS0) |
 		BIT(VECS0) | BIT(VECS1) | BIT(VECS2) | BIT(VECS3) |
@@ -1051,6 +1052,7 @@ static const struct intel_device_info xehpsdv_info = {
 	.has_64k_pages = 1, \
 	.has_guc_deprivilege = 1, \
 	.needs_compact_pt = 1, \
+	.has_media_ratio_mode = 1, \
 	.platform_engine_mask = \
 		BIT(RCS0) | BIT(BCS0) | \
 		BIT(VECS0) | BIT(VECS1) | \
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 4053efaa55da..eb3a37808e1d 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_llc); \
 	func(has_logical_ring_contexts); \
 	func(has_logical_ring_elsq); \
+	func(has_media_ratio_mode); \
 	func(has_mslices); \
 	func(has_pooled_eu); \
 	func(has_pxp); \
-- 
2.34.1