disp: msm: sde: update wb line width for linear format

This change adds support for enabling WB maximum linewidth
based on color format is linear or UWBC.

Change-Id: Icc71eb14b3156e06036a4a82029d9d7a5c89e909
Signed-off-by: Prabhanjan Kandula <pkandula@codeaurora.org>

msm/sde/sde_encoder_phys_wb.c

@@ -24,6 +24,10 @@
 
 #define TO_S15D16(_x_)	((_x_) << 7)
 
+#define SDE_WB_MAX_LINEWIDTH(fmt, wb_cfg) \
+	(SDE_FORMAT_IS_UBWC(fmt) ? wb_cfg->sblk->maxlinewidth : \
+	wb_cfg->sblk->maxlinewidth_linear)
+
 static const u32 cwb_irq_tbl[PINGPONG_MAX] = {SDE_NONE, INTR_IDX_PP1_OVFL,
 	INTR_IDX_PP2_OVFL, INTR_IDX_PP3_OVFL, INTR_IDX_PP4_OVFL,
 	INTR_IDX_PP5_OVFL, SDE_NONE, SDE_NONE};
@@ -766,9 +770,10 @@ static int sde_encoder_phys_wb_atomic_check(
 			SDE_ERROR("invalid roi y=%d, h=%d, fb h=%d\n",
 					wb_roi.y, wb_roi.h, fb->height);
 			return -EINVAL;
-		} else if (wb_roi.w > wb_cfg->sblk->maxlinewidth) {
+		} else if (wb_roi.w > SDE_WB_MAX_LINEWIDTH(fmt, wb_cfg)) {
-			SDE_ERROR("invalid roi w=%d, maxlinewidth=%u\n",
+			SDE_ERROR("invalid roi ubwc=%d w=%d, maxlinewidth=%u\n",
-					wb_roi.w, wb_cfg->sblk->maxlinewidth);
+					SDE_FORMAT_IS_UBWC(fmt), wb_roi.w,
+					SDE_WB_MAX_LINEWIDTH(fmt, wb_cfg));
 			return -EINVAL;
 		}
 	} else {
@@ -784,9 +789,10 @@ static int sde_encoder_phys_wb_atomic_check(
 			SDE_ERROR("invalid fb h=%d, mode h=%d\n", fb->height,
 					mode->vdisplay);
 			return -EINVAL;
-		} else if (fb->width > wb_cfg->sblk->maxlinewidth) {
+		} else if (fb->width > SDE_WB_MAX_LINEWIDTH(fmt, wb_cfg)) {
-			SDE_ERROR("invalid fb w=%d, maxlinewidth=%u\n",
+			SDE_ERROR("invalid fb ubwc=%d w=%d, maxlinewidth=%u\n",
-					fb->width, wb_cfg->sblk->maxlinewidth);
+					SDE_FORMAT_IS_UBWC(fmt), fb->width,
+					SDE_WB_MAX_LINEWIDTH(fmt, wb_cfg));
 			return -EINVAL;
 		}
 	}

msm/sde/sde_hw_catalog.c

@@ -182,6 +182,7 @@ enum sde_prop {
 	MIXER_LINEWIDTH,
 	MIXER_BLEND,
 	WB_LINEWIDTH,
+	WB_LINEWIDTH_LINEAR,
 	BANK_BIT,
 	UBWC_VERSION,
 	UBWC_STATIC,
@@ -542,6 +543,8 @@ static struct sde_prop_type sde_prop[] = {
 	{MIXER_LINEWIDTH, "qcom,sde-mixer-linewidth", false, PROP_TYPE_U32},
 	{MIXER_BLEND, "qcom,sde-mixer-blendstages", false, PROP_TYPE_U32},
 	{WB_LINEWIDTH, "qcom,sde-wb-linewidth", false, PROP_TYPE_U32},
+	{WB_LINEWIDTH_LINEAR, "qcom,sde-wb-linewidth-linear",
+			false, PROP_TYPE_U32},
 	{BANK_BIT, "qcom,sde-highest-bank-bit", false, PROP_TYPE_U32},
 	{UBWC_VERSION, "qcom,sde-ubwc-version", false, PROP_TYPE_U32},
 	{UBWC_STATIC, "qcom,sde-ubwc-static", false, PROP_TYPE_U32},
@@ -2298,6 +2301,7 @@ static int sde_wb_parse_dt(struct device_node *np, struct sde_mdss_cfg *sde_cfg)
 		if (!prop_exists[WB_LEN])
 			wb->len = DEFAULT_SDE_HW_BLOCK_LEN;
 		sblk->maxlinewidth = sde_cfg->max_wb_linewidth;
+		sblk->maxlinewidth_linear = sde_cfg->max_wb_linewidth_linear;
 
 		if (wb->id >= LINE_MODE_WB_OFFSET)
 			set_bit(SDE_WB_LINE_MODE, &wb->features);
@@ -3654,6 +3658,11 @@ static void _sde_top_parse_dt_helper(struct sde_mdss_cfg *cfg,
 			PROP_VALUE_ACCESS(props->values, WB_LINEWIDTH, 0) :
 			DEFAULT_SDE_LINE_WIDTH;
 
+	/* if wb linear width is not defined use the line width as default */
+	cfg->max_wb_linewidth_linear = props->exists[WB_LINEWIDTH_LINEAR] ?
+			PROP_VALUE_ACCESS(props->values, WB_LINEWIDTH_LINEAR, 0)
+			:  cfg->max_wb_linewidth;
+
 	cfg->max_mixer_width = props->exists[MIXER_LINEWIDTH] ?
 			PROP_VALUE_ACCESS(props->values, MIXER_LINEWIDTH, 0) :
 			DEFAULT_SDE_LINE_WIDTH;

msm/sde/sde_hw_catalog.h

@@ -817,6 +817,7 @@ struct sde_vdc_sub_blks {
 
 struct sde_wb_sub_blocks {
 	u32 maxlinewidth;
+	u32 maxlinewidth_linear;
 };
 
 struct sde_mdss_base_cfg {
@@ -1364,6 +1365,7 @@ struct sde_perf_cfg {
  * @max_mixer_blendstages max layer mixer blend stages or
  *                       supported z order
  * @max_wb_linewidth   max writeback line width support.
+ * @max_wb_linewidth_linear   max writeback line width for linear formats.
  * @max_display_width   maximum display width support.
  * @max_display_height  maximum display height support.
  * @max_lm_per_display  maximum layer mixer per display
@@ -1433,6 +1435,7 @@ struct sde_mdss_cfg {
 	u32 max_mixer_width;
 	u32 max_mixer_blendstages;
 	u32 max_wb_linewidth;
+	u32 max_wb_linewidth_linear;
 
 	u32 max_display_width;
 	u32 max_display_height;

msm/sde/sde_wb.c

@@ -97,9 +97,11 @@ int sde_wb_connector_get_modes(struct drm_connector *connector, void *display,
 			num_modes++;
 		}
 	} else {
-		u32 max_width = (wb_dev->wb_cfg && wb_dev->wb_cfg->sblk) ?
+		u32 max_width = SDE_WB_MODE_MAX_WIDTH;
-				wb_dev->wb_cfg->sblk->maxlinewidth :
+
-				SDE_WB_MODE_MAX_WIDTH;
+		if (wb_dev->wb_cfg && wb_dev->wb_cfg->sblk)
+			max_width = max(wb_dev->wb_cfg->sblk->maxlinewidth,
+				wb_dev->wb_cfg->sblk->maxlinewidth_linear);
 
 		num_modes = drm_add_modes_noedid(connector, max_width,
 				SDE_WB_MODE_MAX_HEIGHT);
@@ -298,21 +300,24 @@ int sde_wb_get_info(struct drm_connector *connector,
 		struct msm_display_info *info, void *display)
 {
 	struct sde_wb_device *wb_dev = display;
+	u32 max_width = SDE_WB_MODE_MAX_WIDTH;
 
 	if (!info || !wb_dev) {
 		pr_err("invalid params\n");
 		return -EINVAL;
 	}
 
+	if (wb_dev->wb_cfg && wb_dev->wb_cfg->sblk)
+		max_width = max(wb_dev->wb_cfg->sblk->maxlinewidth,
+				wb_dev->wb_cfg->sblk->maxlinewidth_linear);
+
 	memset(info, 0, sizeof(struct msm_display_info));
 	info->intf_type = DRM_MODE_CONNECTOR_VIRTUAL;
 	info->num_of_h_tiles = 1;
 	info->h_tile_instance[0] = sde_wb_get_index(display);
 	info->is_connected = true;
 	info->capabilities = MSM_DISPLAY_CAP_HOT_PLUG | MSM_DISPLAY_CAP_EDID;
-	info->max_width = (wb_dev->wb_cfg && wb_dev->wb_cfg->sblk) ?
+	info->max_width = max_width;
-			wb_dev->wb_cfg->sblk->maxlinewidth :
-			SDE_WB_MODE_MAX_WIDTH;
 	info->max_height = SDE_WB_MODE_MAX_HEIGHT;
 	return 0;
 }
@@ -391,6 +396,10 @@ int sde_wb_connector_set_info_blob(struct drm_connector *connector,
 			"maxlinewidth",
 			wb_dev->wb_cfg->sblk->maxlinewidth);
 
+	sde_kms_info_add_keyint(info,
+			"maxlinewidth_linear",
+			wb_dev->wb_cfg->sblk->maxlinewidth_linear);
+
 	sde_kms_info_start(info, "features");
 	if (wb_dev->wb_cfg && (wb_dev->wb_cfg->features & BIT(SDE_WB_UBWC)))
 		sde_kms_info_append(info, "wb_ubwc");