| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. |
| */ |
| |
| #ifndef _DPU_HW_VBIF_H |
| #define _DPU_HW_VBIF_H |
| |
| #include "dpu_hw_catalog.h" |
| #include "dpu_hw_mdss.h" |
| #include "dpu_hw_util.h" |
| |
| struct dpu_hw_vbif; |
| |
| /** |
| * struct dpu_hw_vbif_ops : Interface to the VBIF hardware driver functions |
| * Assumption is these functions will be called after clocks are enabled |
| */ |
| struct dpu_hw_vbif_ops { |
| /** |
| * set_limit_conf - set transaction limit config |
| * @vbif: vbif context driver |
| * @xin_id: client interface identifier |
| * @rd: true for read limit; false for write limit |
| * @limit: outstanding transaction limit |
| */ |
| void (*set_limit_conf)(struct dpu_hw_vbif *vbif, |
| u32 xin_id, bool rd, u32 limit); |
| |
| /** |
| * get_limit_conf - get transaction limit config |
| * @vbif: vbif context driver |
| * @xin_id: client interface identifier |
| * @rd: true for read limit; false for write limit |
| * @return: outstanding transaction limit |
| */ |
| u32 (*get_limit_conf)(struct dpu_hw_vbif *vbif, |
| u32 xin_id, bool rd); |
| |
| /** |
| * set_halt_ctrl - set halt control |
| * @vbif: vbif context driver |
| * @xin_id: client interface identifier |
| * @enable: halt control enable |
| */ |
| void (*set_halt_ctrl)(struct dpu_hw_vbif *vbif, |
| u32 xin_id, bool enable); |
| |
| /** |
| * get_halt_ctrl - get halt control |
| * @vbif: vbif context driver |
| * @xin_id: client interface identifier |
| * @return: halt control enable |
| */ |
| bool (*get_halt_ctrl)(struct dpu_hw_vbif *vbif, |
| u32 xin_id); |
| |
| /** |
| * set_qos_remap - set QoS priority remap |
| * @vbif: vbif context driver |
| * @xin_id: client interface identifier |
| * @level: priority level |
| * @remap_level: remapped level |
| */ |
| void (*set_qos_remap)(struct dpu_hw_vbif *vbif, |
| u32 xin_id, u32 level, u32 remap_level); |
| |
| /** |
| * set_mem_type - set memory type |
| * @vbif: vbif context driver |
| * @xin_id: client interface identifier |
| * @value: memory type value |
| */ |
| void (*set_mem_type)(struct dpu_hw_vbif *vbif, |
| u32 xin_id, u32 value); |
| |
| /** |
| * clear_errors - clear any vbif errors |
| * This function clears any detected pending/source errors |
| * on the VBIF interface, and optionally returns the detected |
| * error mask(s). |
| * @vbif: vbif context driver |
| * @pnd_errors: pointer to pending error reporting variable |
| * @src_errors: pointer to source error reporting variable |
| */ |
| void (*clear_errors)(struct dpu_hw_vbif *vbif, |
| u32 *pnd_errors, u32 *src_errors); |
| |
| /** |
| * set_write_gather_en - set write_gather enable |
| * @vbif: vbif context driver |
| * @xin_id: client interface identifier |
| */ |
| void (*set_write_gather_en)(struct dpu_hw_vbif *vbif, u32 xin_id); |
| }; |
| |
| struct dpu_hw_vbif { |
| /* base */ |
| struct dpu_hw_blk_reg_map hw; |
| |
| /* vbif */ |
| enum dpu_vbif idx; |
| const struct dpu_vbif_cfg *cap; |
| |
| /* ops */ |
| struct dpu_hw_vbif_ops ops; |
| }; |
| |
| /** |
| * dpu_hw_vbif_init() - Initializes the VBIF driver for the passed |
| * VBIF catalog entry. |
| * @dev: Corresponding device for devres management |
| * @cfg: VBIF catalog entry for which driver object is required |
| * @addr: Mapped register io address of MDSS |
| */ |
| struct dpu_hw_vbif *dpu_hw_vbif_init(struct drm_device *dev, |
| const struct dpu_vbif_cfg *cfg, |
| void __iomem *addr); |
| |
| #endif /*_DPU_HW_VBIF_H */ |
