83 #define gsc_read(offset)		readl(ctx->regs + (offset))
84 #define gsc_write(cfg, offset)	writel(cfg, ctx->regs + (offset))
398 static int gsc_sw_reset(struct gsc_context *ctx)  in gsc_sw_reset()  argument
438 static void gsc_set_gscblk_fimd_wb(struct gsc_context *ctx, bool enable)  in gsc_set_gscblk_fimd_wb()  argument
445 		gscblk_cfg |= GSC_BLK_DISP1WB_DEST(ctx->id) |  in gsc_set_gscblk_fimd_wb()
446 				GSC_BLK_GSCL_WB_IN_SRC_SEL(ctx->id) |  in gsc_set_gscblk_fimd_wb()
447 				GSC_BLK_SW_RESET_WB_DEST(ctx->id);  in gsc_set_gscblk_fimd_wb()
449 		gscblk_cfg |= GSC_BLK_PXLASYNC_LO_MASK_WB(ctx->id);  in gsc_set_gscblk_fimd_wb()
454 static void gsc_handle_irq(struct gsc_context *ctx, bool enable,  in gsc_handle_irq()  argument
486 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_src_set_fmt()  local
487 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_src_set_fmt()
559 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_src_set_transf()  local
560 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_src_set_transf()
596 	ctx->rotation = cfg &  in gsc_src_set_transf()
598 	*swap = ctx->rotation;  in gsc_src_set_transf()
606 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_src_set_size()  local
608 	struct gsc_scaler *sc = &ctx->sc;  in gsc_src_set_size()
662 static int gsc_src_set_buf_seq(struct gsc_context *ctx, u32 buf_id,  in gsc_src_set_buf_seq()  argument
665 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_src_set_buf_seq()
701 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_src_set_addr()  local
702 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_src_set_addr()
741 	return gsc_src_set_buf_seq(ctx, buf_id, buf_type);  in gsc_src_set_addr()
753 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_dst_set_fmt()  local
754 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_dst_set_fmt()
823 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_dst_set_transf()  local
824 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_dst_set_transf()
860 	ctx->rotation = cfg &  in gsc_dst_set_transf()
862 	*swap = ctx->rotation;  in gsc_dst_set_transf()
901 static int gsc_set_prescaler(struct gsc_context *ctx, struct gsc_scaler *sc,  in gsc_set_prescaler()  argument
904 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_set_prescaler()
912 	if (ctx->rotation) {  in gsc_set_prescaler()
954 static void gsc_set_h_coef(struct gsc_context *ctx, unsigned long main_hratio)  in gsc_set_h_coef()  argument
980 static void gsc_set_v_coef(struct gsc_context *ctx, unsigned long main_vratio)  in gsc_set_v_coef()  argument
1006 static void gsc_set_scaler(struct gsc_context *ctx, struct gsc_scaler *sc)  in gsc_set_scaler()  argument
1013 	gsc_set_h_coef(ctx, sc->main_hratio);  in gsc_set_scaler()
1017 	gsc_set_v_coef(ctx, sc->main_vratio);  in gsc_set_scaler()
1025 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_dst_set_size()  local
1027 	struct gsc_scaler *sc = &ctx->sc;  in gsc_dst_set_size()
1078 static int gsc_dst_get_buf_seq(struct gsc_context *ctx)  in gsc_dst_get_buf_seq()  argument
1094 static int gsc_dst_set_buf_seq(struct gsc_context *ctx, u32 buf_id,  in gsc_dst_set_buf_seq()  argument
1097 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_dst_set_buf_seq()
1105 	mutex_lock(&ctx->lock);  in gsc_dst_set_buf_seq()
1132 	    gsc_dst_get_buf_seq(ctx) >= GSC_BUF_START)  in gsc_dst_set_buf_seq()
1133 		gsc_handle_irq(ctx, true, false, true);  in gsc_dst_set_buf_seq()
1137 	    gsc_dst_get_buf_seq(ctx) <= GSC_BUF_STOP)  in gsc_dst_set_buf_seq()
1138 		gsc_handle_irq(ctx, false, false, true);  in gsc_dst_set_buf_seq()
1141 	mutex_unlock(&ctx->lock);  in gsc_dst_set_buf_seq()
1149 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_dst_set_addr()  local
1150 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_dst_set_addr()
1189 	return gsc_dst_set_buf_seq(ctx, buf_id, buf_type);  in gsc_dst_set_addr()
1199 static int gsc_clk_ctrl(struct gsc_context *ctx, bool enable)  in gsc_clk_ctrl()  argument
1204 		clk_enable(ctx->gsc_clk);  in gsc_clk_ctrl()
1205 		ctx->suspended = false;  in gsc_clk_ctrl()
1207 		clk_disable(ctx->gsc_clk);  in gsc_clk_ctrl()
1208 		ctx->suspended = true;  in gsc_clk_ctrl()
1214 static int gsc_get_src_buf_index(struct gsc_context *ctx)  in gsc_get_src_buf_index()  argument
1220 	DRM_DEBUG_KMS("gsc id[%d]\n", ctx->id);  in gsc_get_src_buf_index()
1237 	ret = gsc_src_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE);  in gsc_get_src_buf_index()
1249 static int gsc_get_dst_buf_index(struct gsc_context *ctx)  in gsc_get_dst_buf_index()  argument
1255 	DRM_DEBUG_KMS("gsc id[%d]\n", ctx->id);  in gsc_get_dst_buf_index()
1272 	ret = gsc_dst_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE);  in gsc_get_dst_buf_index()
1286 	struct gsc_context *ctx = dev_id;  in gsc_irq_handler()  local
1287 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_irq_handler()
1294 	DRM_DEBUG_KMS("gsc id[%d]\n", ctx->id);  in gsc_irq_handler()
1299 			ctx->id, status);  in gsc_irq_handler()
1305 			ctx->id, status);  in gsc_irq_handler()
1307 		buf_id[EXYNOS_DRM_OPS_SRC] = gsc_get_src_buf_index(ctx);  in gsc_irq_handler()
1311 		buf_id[EXYNOS_DRM_OPS_DST] = gsc_get_dst_buf_index(ctx);  in gsc_irq_handler()
1375 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_ippdrv_check_property()  local
1376 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_ippdrv_check_property()
1488 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_ippdrv_reset()  local
1489 	struct gsc_scaler *sc = &ctx->sc;  in gsc_ippdrv_reset()
1493 	ret = gsc_sw_reset(ctx);  in gsc_ippdrv_reset()
1500 	memset(&ctx->sc, 0x0, sizeof(ctx->sc));  in gsc_ippdrv_reset()
1508 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_ippdrv_start()  local
1509 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_ippdrv_start()
1527 	gsc_handle_irq(ctx, true, false, true);  in gsc_ippdrv_start()
1557 		gsc_set_gscblk_fimd_wb(ctx, set_wb.enable);  in gsc_ippdrv_start()
1589 	ret = gsc_set_prescaler(ctx, &ctx->sc,  in gsc_ippdrv_start()
1597 	gsc_set_scaler(ctx, &ctx->sc);  in gsc_ippdrv_start()
1608 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_ippdrv_stop()  local
1619 		gsc_set_gscblk_fimd_wb(ctx, set_wb.enable);  in gsc_ippdrv_stop()
1628 	gsc_handle_irq(ctx, false, false, true);  in gsc_ippdrv_stop()
1643 	struct gsc_context *ctx;  in gsc_probe()  local
1648 	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);  in gsc_probe()
1649 	if (!ctx)  in gsc_probe()
1653 	ctx->gsc_clk = devm_clk_get(dev, "gscl");  in gsc_probe()
1654 	if (IS_ERR(ctx->gsc_clk)) {  in gsc_probe()
1656 		return PTR_ERR(ctx->gsc_clk);  in gsc_probe()
1660 	ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);  in gsc_probe()
1661 	ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);  in gsc_probe()
1662 	if (IS_ERR(ctx->regs))  in gsc_probe()
1663 		return PTR_ERR(ctx->regs);  in gsc_probe()
1672 	ctx->irq = res->start;  in gsc_probe()
1673 	ret = devm_request_threaded_irq(dev, ctx->irq, NULL, gsc_irq_handler,  in gsc_probe()
1674 		IRQF_ONESHOT, "drm_gsc", ctx);  in gsc_probe()
1681 	ctx->id = pdev->id;  in gsc_probe()
1683 	ippdrv = &ctx->ippdrv;  in gsc_probe()
1697 	DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);  in gsc_probe()
1699 	mutex_init(&ctx->lock);  in gsc_probe()
1700 	platform_set_drvdata(pdev, ctx);  in gsc_probe()
1723 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_remove()  local
1724 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;  in gsc_remove()
1727 	mutex_destroy(&ctx->lock);  in gsc_remove()
1738 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_suspend()  local
1740 	DRM_DEBUG_KMS("id[%d]\n", ctx->id);  in gsc_suspend()
1745 	return gsc_clk_ctrl(ctx, false);  in gsc_suspend()
1750 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_resume()  local
1752 	DRM_DEBUG_KMS("id[%d]\n", ctx->id);  in gsc_resume()
1755 		return gsc_clk_ctrl(ctx, true);  in gsc_resume()
1764 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_runtime_suspend()  local
1766 	DRM_DEBUG_KMS("id[%d]\n", ctx->id);  in gsc_runtime_suspend()
1768 	return  gsc_clk_ctrl(ctx, false);  in gsc_runtime_suspend()
1773 	struct gsc_context *ctx = get_gsc_context(dev);  in gsc_runtime_resume()  local
1775 	DRM_DEBUG_KMS("id[%d]\n", ctx->id);  in gsc_runtime_resume()
1777 	return  gsc_clk_ctrl(ctx, true);  in gsc_runtime_resume()