[PATCH 3/3] drm/i915/display: Use INTEL_GLOBAL_STATE_DEFAULTS

[Gustavo Sousa <gustavo.sousa@intel.com>]

Reduce global state boilerplate by using INTEL_GLOBAL_STATE_DEFAULTS().
The only case that requires customization is for the duplication of
CDCLK state, which is resolved by wrapping the generic implementation.

Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
---
 drivers/gpu/drm/i915/display/intel_bw.c       | 21 +------------------
 drivers/gpu/drm/i915/display/intel_cdclk.c    | 18 +++++++---------
 drivers/gpu/drm/i915/display/intel_pmdemand.c | 21 +------------------
 drivers/gpu/drm/i915/display/skl_watermark.c  | 20 +-----------------
 4 files changed, 10 insertions(+), 70 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index 30236010e0ed..f040dfa70fd9 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -1422,27 +1422,8 @@ int intel_bw_atomic_check(struct intel_atomic_state *state)
 	return 0;
 }
 
-static struct intel_global_state *
-intel_bw_duplicate_state(struct intel_global_obj *obj)
-{
-	struct intel_bw_state *state = to_intel_bw_state(obj->state);
-
-	state = kmemdup(state, sizeof(*state), GFP_KERNEL);
-	if (!state)
-		return NULL;
-
-	return &state->base;
-}
-
-static void intel_bw_destroy_state(struct intel_global_obj *obj,
-				   struct intel_global_state *state)
-{
-	kfree(state);
-}
-
 static const struct intel_global_state_funcs intel_bw_funcs = {
-	.atomic_duplicate_state = intel_bw_duplicate_state,
-	.atomic_destroy_state = intel_bw_destroy_state,
+	INTEL_GLOBAL_STATE_DEFAULTS(struct intel_bw_state, base),
 };
 
 int intel_bw_init(struct drm_i915_private *i915)
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index fc084e2a4c6a..a9dfbd53e812 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -3130,27 +3130,23 @@ static int fixed_modeset_calc_cdclk(struct intel_atomic_state *state)
 
 static struct intel_global_state *intel_cdclk_duplicate_state(struct intel_global_obj *obj)
 {
-	struct intel_cdclk_state *cdclk_state = to_intel_cdclk_state(obj->state);
+	struct intel_global_state *obj_state;
+	struct intel_cdclk_state *cdclk_state;
 
-	cdclk_state = kmemdup(cdclk_state, sizeof(*cdclk_state), GFP_KERNEL);
-	if (!cdclk_state)
+	obj_state = intel_atomic_global_duplicate_state_common(obj);
+	if (!obj_state)
 		return NULL;
 
+	cdclk_state = to_intel_cdclk_state(obj_state);
 	cdclk_state->pipe = INVALID_PIPE;
 	cdclk_state->disable_pipes = false;
 
-	return &cdclk_state->base;
-}
-
-static void intel_cdclk_destroy_state(struct intel_global_obj *obj,
-				      struct intel_global_state *state)
-{
-	kfree(state);
+	return obj_state;
 }
 
 static const struct intel_global_state_funcs intel_cdclk_funcs = {
+	INTEL_GLOBAL_STATE_DEFAULTS(struct intel_cdclk_state, base),
 	.atomic_duplicate_state = intel_cdclk_duplicate_state,
-	.atomic_destroy_state = intel_cdclk_destroy_state,
 };
 
 struct intel_cdclk_state *
diff --git a/drivers/gpu/drm/i915/display/intel_pmdemand.c b/drivers/gpu/drm/i915/display/intel_pmdemand.c
index 1f71efb7d04d..5bf245a9ac8d 100644
--- a/drivers/gpu/drm/i915/display/intel_pmdemand.c
+++ b/drivers/gpu/drm/i915/display/intel_pmdemand.c
@@ -15,27 +15,8 @@
 #include "intel_pmdemand.h"
 #include "skl_watermark.h"
 
-static struct intel_global_state *
-intel_pmdemand_duplicate_state(struct intel_global_obj *obj)
-{
-	struct intel_pmdemand_state *pmdemand_state = to_intel_pmdemand_state(obj->state);
-
-	pmdemand_state = kmemdup(pmdemand_state, sizeof(*pmdemand_state), GFP_KERNEL);
-	if (!pmdemand_state)
-		return NULL;
-
-	return &pmdemand_state->base;
-}
-
-static void intel_pmdemand_destroy_state(struct intel_global_obj *obj,
-					 struct intel_global_state *state)
-{
-	kfree(state);
-}
-
 static const struct intel_global_state_funcs intel_pmdemand_funcs = {
-	.atomic_duplicate_state = intel_pmdemand_duplicate_state,
-	.atomic_destroy_state = intel_pmdemand_destroy_state,
+	INTEL_GLOBAL_STATE_DEFAULTS(struct intel_pmdemand_state, base),
 };
 
 static struct intel_pmdemand_state *
diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index b3d38e09df5a..8aa041be8277 100644
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -3289,26 +3289,8 @@ static void skl_setup_wm_latency(struct drm_i915_private *i915)
 	intel_print_wm_latency(i915, "Gen9 Plane", display->wm.skl_latency);
 }
 
-static struct intel_global_state *intel_dbuf_duplicate_state(struct intel_global_obj *obj)
-{
-	struct intel_dbuf_state *dbuf_state = to_intel_dbuf_state(obj->state);
-
-	dbuf_state = kmemdup(dbuf_state, sizeof(*dbuf_state), GFP_KERNEL);
-	if (!dbuf_state)
-		return NULL;
-
-	return &dbuf_state->base;
-}
-
-static void intel_dbuf_destroy_state(struct intel_global_obj *obj,
-				     struct intel_global_state *state)
-{
-	kfree(state);
-}
-
 static const struct intel_global_state_funcs intel_dbuf_funcs = {
-	.atomic_duplicate_state = intel_dbuf_duplicate_state,
-	.atomic_destroy_state = intel_dbuf_destroy_state,
+	INTEL_GLOBAL_STATE_DEFAULTS(struct intel_dbuf_state, base),
 };
 
 struct intel_dbuf_state *
-- 
2.47.1