ac8fbffff5
Add vbif axi port halt request support before MDSS core GDSC power collapse state. It is needed for targets without MDSS RSC support. Change-Id: I1fbf281c4206ecd4ad1c2d1348a95e002740e2f1 Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
140 lines
3.6 KiB
C
140 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
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*/
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#ifndef _SDE_HW_VBIF_H
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#define _SDE_HW_VBIF_H
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#include "sde_hw_catalog.h"
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#include "sde_hw_mdss.h"
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#include "sde_hw_util.h"
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struct sde_hw_vbif;
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/**
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* struct sde_hw_vbif_ops : Interface to the VBIF hardware driver functions
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* Assumption is these functions will be called after clocks are enabled
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*/
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struct sde_hw_vbif_ops {
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/**
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* set_limit_conf - set transaction limit config
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* @vbif: vbif context driver
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* @xin_id: client interface identifier
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* @rd: true for read limit; false for write limit
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* @limit: outstanding transaction limit
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*/
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void (*set_limit_conf)(struct sde_hw_vbif *vbif,
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u32 xin_id, bool rd, u32 limit);
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/**
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* get_limit_conf - get transaction limit config
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* @vbif: vbif context driver
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* @xin_id: client interface identifier
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* @rd: true for read limit; false for write limit
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* @return: outstanding transaction limit
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*/
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u32 (*get_limit_conf)(struct sde_hw_vbif *vbif,
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u32 xin_id, bool rd);
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/**
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* set_xin_halt - set xin client halt control
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* @vbif: vbif context driver
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* @xin_id: client interface identifier
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* @enable: halt control enable
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*/
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void (*set_xin_halt)(struct sde_hw_vbif *vbif,
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u32 xin_id, bool enable);
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/**
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* get_xin_halt_status - get xin client halt control
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* @vbif: vbif context driver
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* @xin_id: client interface identifier
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* @return: halt control enable
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*/
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bool (*get_xin_halt_status)(struct sde_hw_vbif *vbif,
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u32 xin_id);
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/**
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* set_axi_halt - set axi port halt control
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* @vbif: vbif context driver
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*/
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void (*set_axi_halt)(struct sde_hw_vbif *vbif);
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/**
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* get_axi_halt_status - get axi port halt control status
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* @vbif: vbif context driver
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*/
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int (*get_axi_halt_status)(struct sde_hw_vbif *vbif);
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/**
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* set_qos_remap - set QoS priority remap
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* @vbif: vbif context driver
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* @xin_id: client interface identifier
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* @level: priority level
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* @remap_level: remapped level
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*/
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void (*set_qos_remap)(struct sde_hw_vbif *vbif,
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u32 xin_id, u32 level, u32 remap_level);
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/**
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* set_mem_type - set memory type
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* @vbif: vbif context driver
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* @xin_id: client interface identifier
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* @value: memory type value
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*/
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void (*set_mem_type)(struct sde_hw_vbif *vbif,
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u32 xin_id, u32 value);
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/**
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* clear_errors - clear any vbif errors
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* This function clears any detected pending/source errors
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* on the VBIF interface, and optionally returns the detected
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* error mask(s).
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* @vbif: vbif context driver
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* @pnd_errors: pointer to pending error reporting variable
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* @src_errors: pointer to source error reporting variable
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*/
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void (*clear_errors)(struct sde_hw_vbif *vbif,
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u32 *pnd_errors, u32 *src_errors);
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/**
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* set_write_gather_en - set write_gather enable
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* @vbif: vbif context driver
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* @xin_id: client interface identifier
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*/
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void (*set_write_gather_en)(struct sde_hw_vbif *vbif, u32 xin_id);
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};
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struct sde_hw_vbif {
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/* base */
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struct sde_hw_blk_reg_map hw;
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/* vbif */
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enum sde_vbif idx;
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const struct sde_vbif_cfg *cap;
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/* ops */
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struct sde_hw_vbif_ops ops;
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/*
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* vbif is common across all displays, lock to serialize access.
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* must be take by client before using any ops
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*/
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struct mutex mutex;
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};
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/**
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* sde_hw_vbif_init - initializes the vbif driver for the passed interface idx
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* @idx: Interface index for which driver object is required
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* @addr: Mapped register io address of MDSS
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* @m: Pointer to mdss catalog data
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*/
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struct sde_hw_vbif *sde_hw_vbif_init(enum sde_vbif idx,
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void __iomem *addr,
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const struct sde_mdss_cfg *m);
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void sde_hw_vbif_destroy(struct sde_hw_vbif *vbif);
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#endif /*_SDE_HW_VBIF_H */
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