cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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rcar_du_group.h (2053B)

      1/* SPDX-License-Identifier: GPL-2.0+ */
      2/*
      3 * rcar_du_group.c  --  R-Car Display Unit Planes and CRTCs Group
      4 *
      5 * Copyright (C) 2013-2014 Renesas Electronics Corporation
      6 *
      7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
      8 */
      9
     10#ifndef __RCAR_DU_GROUP_H__
     11#define __RCAR_DU_GROUP_H__
     12
     13#include <linux/mutex.h>
     14
     15#include "rcar_du_plane.h"
     16
     17struct rcar_du_device;
     18
     19/*
     20 * struct rcar_du_group - CRTCs and planes group
     21 * @dev: the DU device
     22 * @mmio_offset: registers offset in the device memory map
     23 * @index: group index
     24 * @channels_mask: bitmask of populated DU channels in this group
     25 * @cmms_mask: bitmask of available CMMs in this group
     26 * @num_crtcs: number of CRTCs in this group (1 or 2)
     27 * @use_count: number of users of the group (rcar_du_group_(get|put))
     28 * @used_crtcs: number of CRTCs currently in use
     29 * @lock: protects the dptsr_planes field and the DPTSR register
     30 * @dptsr_planes: bitmask of planes driven by dot-clock and timing generator 1
     31 * @num_planes: number of planes in the group
     32 * @planes: planes handled by the group
     33 * @need_restart: the group needs to be restarted due to a configuration change
     34 */
     35struct rcar_du_group {
     36	struct rcar_du_device *dev;
     37	unsigned int mmio_offset;
     38	unsigned int index;
     39
     40	unsigned int channels_mask;
     41	unsigned int cmms_mask;
     42	unsigned int num_crtcs;
     43	unsigned int use_count;
     44	unsigned int used_crtcs;
     45
     46	struct mutex lock;
     47	unsigned int dptsr_planes;
     48
     49	unsigned int num_planes;
     50	struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES];
     51	bool need_restart;
     52};
     53
     54u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg);
     55void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data);
     56
     57int rcar_du_group_get(struct rcar_du_group *rgrp);
     58void rcar_du_group_put(struct rcar_du_group *rgrp);
     59void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start);
     60void rcar_du_group_restart(struct rcar_du_group *rgrp);
     61int rcar_du_group_set_routing(struct rcar_du_group *rgrp);
     62
     63int rcar_du_set_dpad0_vsp1_routing(struct rcar_du_device *rcdu);
     64
     65#endif /* __RCAR_DU_GROUP_H__ */