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Date:   Tue, 22 Jan 2019 09:23:58 +0000
From:   "james qian wang (Arm Technology China)" <james.qian.wang@....com>
To:     Liviu Dudau <Liviu.Dudau@....com>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        Brian Starkey <Brian.Starkey@....com>
CC:     "Jonathan Chai (Arm Technology China)" <Jonathan.Chai@....com>,
        "Julien Yin (Arm Technology China)" <Julien.Yin@....com>,
        "thomas Sun (Arm Technology China)" <thomas.Sun@....com>,
        "Lowry Li (Arm Technology China)" <Lowry.Li@....com>,
        Ayan Halder <Ayan.Halder@....com>,
        "Tiannan Zhu (Arm Technology China)" <Tiannan.Zhu@....com>,
        "Jin Gao (Arm Technology China)" <Jin.Gao@....com>,
        "Yiqi Kang (Arm Technology China)" <Yiqi.Kang@....com>,
        nd <nd@....com>, "malidp@...s.arm.com" <malidp@...s.arm.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "james qian wang (Arm Technology China)" <james.qian.wang@....com>
Subject: [PATCH v2 3/7] drm/komeda: Add d71 compiz component

From: "james qian wang (Arm Technology China)" <james.qian.wang@....com>

Implement d71_compiz_init and add compiz component to komeda-CORE

v2: Rebase.

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@....com>
---
 .../arm/display/komeda/d71/d71_component.c    | 92 ++++++++++++++++++-
 .../drm/arm/display/komeda/komeda_pipeline.h  | 26 ++++--
 2 files changed, 110 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
index 0a602e875f5e..401053ef0a53 100644
--- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
+++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
@@ -96,6 +96,13 @@ static u32 to_rot_ctrl(u32 rot)
 	return lr_ctrl;
 }
 
+static inline u32 to_d71_input_id(struct komeda_component_output *output)
+{
+	struct komeda_component *comp = output->component;
+
+	return comp ? (comp->hw_id + output->output_port) : 0;
+}
+
 static void d71_layer_disable(struct komeda_component *c)
 {
 	malidp_write32_mask(c->reg, BLK_CONTROL, L_EN, 0);
@@ -184,10 +191,93 @@ static int d71_wb_layer_init(struct d71_dev *d71,
 	return 0;
 }
 
+static void d71_component_disable(struct komeda_component *c)
+{
+	u32 __iomem *reg = c->reg;
+	u32 i;
+
+	malidp_write32(reg, BLK_CONTROL, 0);
+
+	for (i = 0; i < c->max_active_inputs; i++)
+		malidp_write32(reg, BLK_INPUT_ID0 + (i << 2), 0);
+}
+
+static void compiz_enable_input(u32 __iomem *id_reg,
+				u32 __iomem *cfg_reg,
+				u32 input_hw_id,
+				struct komeda_compiz_input_cfg *cin)
+{
+	u32 ctrl = CU_INPUT_CTRL_EN;
+	u8 blend = cin->pixel_blend_mode;
+
+	if (blend == DRM_MODE_BLEND_PIXEL_NONE)
+		ctrl |= CU_INPUT_CTRL_PAD;
+	else if (blend == DRM_MODE_BLEND_PREMULTI)
+		ctrl |= CU_INPUT_CTRL_PMUL;
+
+	ctrl |= CU_INPUT_CTRL_ALPHA(cin->layer_alpha);
+
+	malidp_write32(id_reg, BLK_INPUT_ID0, input_hw_id);
+
+	malidp_write32(cfg_reg, CU_INPUT0_SIZE,
+		       HV_SIZE(cin->hsize, cin->vsize));
+	malidp_write32(cfg_reg, CU_INPUT0_OFFSET,
+		       HV_OFFSET(cin->hoffset, cin->voffset));
+	malidp_write32(cfg_reg, CU_INPUT0_CONTROL, ctrl);
+}
+
+static void d71_compiz_update(struct komeda_component *c,
+			      struct komeda_component_state *state)
+{
+	struct komeda_compiz_state *st = to_compiz_st(state);
+	u32 __iomem *reg = c->reg;
+	u32 __iomem *id_reg, *cfg_reg;
+	u32 index, input_hw_id;
+
+	for_each_changed_input(state, index) {
+		id_reg = reg + index;
+		cfg_reg = reg + index * CU_PER_INPUT_REGS;
+		input_hw_id = to_d71_input_id(&state->inputs[index]);
+		if (state->active_inputs & BIT(index)) {
+			compiz_enable_input(id_reg, cfg_reg,
+					    input_hw_id, &st->cins[index]);
+		} else {
+			malidp_write32(id_reg, BLK_INPUT_ID0, 0);
+			malidp_write32(cfg_reg, CU_INPUT0_CONTROL, 0);
+		}
+	}
+
+	malidp_write32(reg, BLK_SIZE, HV_SIZE(st->hsize, st->vsize));
+}
+
+struct komeda_component_funcs d71_compiz_funcs = {
+	.update		= d71_compiz_update,
+	.disable	= d71_component_disable,
+};
+
 static int d71_compiz_init(struct d71_dev *d71,
 			   struct block_header *blk, u32 __iomem *reg)
 {
-	DRM_DEBUG("Detect D71_compiz.\n");
+	struct komeda_component *c;
+	struct komeda_compiz *compiz;
+	u32 pipe_id, comp_id;
+
+	get_resources_id(blk->block_info, &pipe_id, &comp_id);
+
+	c = komeda_component_add(&d71->pipes[pipe_id]->base, sizeof(*compiz),
+				 comp_id,
+				 BLOCK_INFO_INPUT_ID(blk->block_info),
+				 &d71_compiz_funcs,
+				 CU_NUM_INPUT_IDS, get_valid_inputs(blk),
+				 CU_NUM_OUTPUT_IDS, reg,
+				 "CU%d", pipe_id);
+	if (IS_ERR(c))
+		return PTR_ERR(c);
+
+	compiz = to_compiz(c);
+
+	set_range(&compiz->hsize, D71_MIN_LINE_SIZE, d71->max_line_size);
+	set_range(&compiz->vsize, D71_MIN_VERTICAL_SIZE, d71->max_vsize);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
index 03525330efe8..d75cc81ae9c0 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
@@ -204,6 +204,10 @@ static inline u16 component_changed_inputs(struct komeda_component_state *st)
 	return component_disabling_inputs(st) | st->changed_active_inputs;
 }
 
+#define for_each_changed_input(st, i)	\
+	for ((i) = 0; (i) < (st)->component->max_active_inputs; (i)++)	\
+		if (has_bit((i), component_changed_inputs(st)))
+
 #define to_comp(__c)	(((__c) == NULL) ? NULL : &((__c)->base))
 #define to_cpos(__c)	((struct komeda_component **)&(__c))
 
@@ -223,23 +227,31 @@ struct komeda_layer_state {
 	dma_addr_t addr[3];
 };
 
-struct komeda_compiz {
+struct komeda_scaler {
 	struct komeda_component base;
-	/* compiz specific features and caps */
+	/* scaler features and caps */
 };
 
-struct komeda_compiz_state {
+struct komeda_scaler_state {
 	struct komeda_component_state base;
-	/* compiz specific configuration state */
 };
 
-struct komeda_scaler {
+struct komeda_compiz {
 	struct komeda_component base;
-	/* scaler features and caps */
+	struct malidp_range hsize, vsize;
 };
 
-struct komeda_scaler_state {
+struct komeda_compiz_input_cfg {
+	u16 hsize, vsize;
+	u16 hoffset, voffset;
+	u8 pixel_blend_mode, layer_alpha;
+};
+
+struct komeda_compiz_state {
 	struct komeda_component_state base;
+	/* composition size */
+	u16 hsize, vsize;
+	struct komeda_compiz_input_cfg cins[KOMEDA_COMPONENT_N_INPUTS];
 };
 
 struct komeda_improc {
-- 
2.17.1

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