[Intel-gfx] [PATCH v3 5/9] drm/i915/dgfx: Add has_lmem_sr

[Anshuman Gupta <anshuman.gupta@intel.com>]

Add has_lmem_sr platform specific flag to know,
whether platform has VRAM self refresh support.
As of now both DG1 and DG2 client platforms supports VRAM self refresh
with D3Cold but let it enable first on DG2 as primary lead platform
for D3Cold support. Let it get enable on DG1 once this feature
is stable.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h          | 1 +
 drivers/gpu/drm/i915/i915_pci.c          | 2 ++
 drivers/gpu/drm/i915/intel_device_info.h | 1 +
 3 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a68777948db9..80de5b2eaf53 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1301,6 +1301,7 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 
 #define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i))
 #define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM)
+#define HAS_LMEM_SR(i915) (INTEL_INFO(i915)->has_lmem_sr)
 
 /*
  * Platform has the dedicated compression control state for each lmem surfaces
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 5e51fc29bb8b..04aad54033dd 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -917,6 +917,7 @@ static const struct intel_device_info dg1_info = {
 	DGFX_FEATURES,
 	.graphics.rel = 10,
 	PLATFORM(INTEL_DG1),
+	.has_lmem_sr = 0,
 	.display.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
 	.require_force_probe = 1,
 	.platform_engine_mask =
@@ -1074,6 +1075,7 @@ static const struct intel_device_info xehpsdv_info = {
 static const struct intel_device_info dg2_info = {
 	DG2_FEATURES,
 	XE_LPD_FEATURES,
+	.has_lmem_sr = 1,
 	.display.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) |
 			       BIT(TRANSCODER_C) | BIT(TRANSCODER_D),
 	.require_force_probe = 1,
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 6c9564429509..0b2dde67b8f8 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -155,6 +155,7 @@ enum intel_ppgtt_type {
 	func(has_l3_ccs_read); \
 	func(has_l3_dpf); \
 	func(has_llc); \
+	func(has_lmem_sr); \
 	func(has_logical_ring_contexts); \
 	func(has_logical_ring_elsq); \
 	func(has_media_ratio_mode); \
-- 
2.26.2