As Chris noticed the current organization is confusing
and inheritance is not clear.

So, let's split it in GEN<n>_FEATURES <cdn>_PLATFORM
where new GEN inherit features from previous gens and
Platforms only use gen features plus what ever is specific
for that platform and shouldn't be passed on.

Cc: Chris Wilson <[email protected]>
Signed-off-by: Rodrigo Vivi <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
---
 drivers/gpu/drm/i915/i915_pci.c | 48 +++++++++++++++++++----------------------
 1 file changed, 22 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 66f4ab0cb2e8..bfec3a7841d0 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -329,7 +329,7 @@ static const struct intel_device_info intel_valleyview_info 
__initconst = {
        CURSOR_OFFSETS
 };
 
-#define HSW_FEATURES  \
+#define G75_FEATURES  \
        GEN7_FEATURES, \
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, \
        .has_ddi = 1, \
@@ -341,7 +341,7 @@ static const struct intel_device_info intel_valleyview_info 
__initconst = {
        .has_runtime_pm = 1
 
 #define HSW_PLATFORM \
-       HSW_FEATURES, \
+       G75_FEATURES, \
        .platform = INTEL_HASWELL, \
        .has_l3_dpf = 1
 
@@ -360,8 +360,8 @@ static const struct intel_device_info 
intel_haswell_gt3_info __initconst = {
        .gt = 3,
 };
 
-#define BDW_FEATURES \
-       HSW_FEATURES, \
+#define GEN8_FEATURES \
+       G75_FEATURES, \
        BDW_COLORS, \
        .has_logical_ring_contexts = 1, \
        .has_full_48bit_ppgtt = 1, \
@@ -369,7 +369,7 @@ static const struct intel_device_info 
intel_haswell_gt3_info __initconst = {
        .has_reset_engine = 1
 
 #define BDW_PLATFORM \
-       BDW_FEATURES, \
+       GEN8_FEATURES, \
        .gen = 8, \
        .platform = INTEL_BROADWELL
 
@@ -420,15 +420,18 @@ static const struct intel_device_info 
intel_cherryview_info __initconst = {
        CHV_COLORS,
 };
 
-#define SKL_PLATFORM \
-       BDW_FEATURES, \
-       .gen = 9, \
-       .platform = INTEL_SKYLAKE, \
+#define GEN9_FEATURES \
+       GEN8_FEATURES, \
        .has_csr = 1, \
        .has_guc = 1, \
        .has_ipc = 1, \
        .ddb_size = 896
 
+#define SKL_PLATFORM \
+       GEN9_FEATURES, \
+       .gen = 9, \
+       .platform = INTEL_SKYLAKE
+
 static const struct intel_device_info intel_skylake_gt1_info __initconst = {
        SKL_PLATFORM,
        .gt = 1,
@@ -497,13 +500,9 @@ static const struct intel_device_info 
intel_geminilake_info __initconst = {
 };
 
 #define KBL_PLATFORM \
-       BDW_FEATURES, \
+       GEN9_FEATURES, \
        .gen = 9, \
-       .platform = INTEL_KABYLAKE, \
-       .has_csr = 1, \
-       .has_guc = 1, \
-       .has_ipc = 1, \
-       .ddb_size = 896
+       .platform = INTEL_KABYLAKE
 
 static const struct intel_device_info intel_kabylake_gt1_info __initconst = {
        KBL_PLATFORM,
@@ -522,13 +521,9 @@ static const struct intel_device_info 
intel_kabylake_gt3_info __initconst = {
 };
 
 #define CFL_PLATFORM \
-       BDW_FEATURES, \
+       GEN9_FEATURES, \
        .gen = 9, \
-       .platform = INTEL_COFFEELAKE, \
-       .has_csr = 1, \
-       .has_guc = 1, \
-       .has_ipc = 1, \
-       .ddb_size = 896
+       .platform = INTEL_COFFEELAKE
 
 static const struct intel_device_info intel_coffeelake_gt1_info __initconst = {
        CFL_PLATFORM,
@@ -546,16 +541,17 @@ static const struct intel_device_info 
intel_coffeelake_gt3_info __initconst = {
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
 };
 
+#define GEN10_FEATURES \
+       GEN9_FEATURES, \
+       .ddb_size = 1024, \
+       .color = { .degamma_lut_size = 0, .gamma_lut_size = 1024 }
+
 static const struct intel_device_info intel_cannonlake_gt2_info __initconst = {
-       BDW_FEATURES,
+       GEN10_FEATURES,
        .is_alpha_support = 1,
        .platform = INTEL_CANNONLAKE,
        .gen = 10,
        .gt = 2,
-       .ddb_size = 1024,
-       .has_csr = 1,
-       .has_ipc = 1,
-       .color = { .degamma_lut_size = 0, .gamma_lut_size = 1024 }
 };
 
 /*
-- 
2.13.5

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