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5d7936b8e2
Adapt the dl->body0 object to use an object from the body pool. This greatly reduces the pressure on the TLB for IPMMU use cases, as all of the lists use a single allocation for the main body. The CLU and LUT objects pre-allocate a pool containing three bodies, allowing a userspace update before the hardware has committed a previous set of tables. Bodies are no longer 'freed' in interrupt context, but instead released back to their respective pools. This allows us to remove the garbage collector in the DLM. Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
46 lines
924 B
C
46 lines
924 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* vsp1_clu.h -- R-Car VSP1 Cubic Look-Up Table
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*
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* Copyright (C) 2015 Renesas Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*/
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#ifndef __VSP1_CLU_H__
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#define __VSP1_CLU_H__
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#include <linux/spinlock.h>
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#include <media/media-entity.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-subdev.h>
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#include "vsp1_entity.h"
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struct vsp1_device;
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struct vsp1_dl_body;
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#define CLU_PAD_SINK 0
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#define CLU_PAD_SOURCE 1
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struct vsp1_clu {
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struct vsp1_entity entity;
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struct v4l2_ctrl_handler ctrls;
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bool yuv_mode;
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spinlock_t lock;
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unsigned int mode;
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struct vsp1_dl_body *clu;
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struct vsp1_dl_body_pool *pool;
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};
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static inline struct vsp1_clu *to_clu(struct v4l2_subdev *subdev)
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{
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return container_of(subdev, struct vsp1_clu, entity.subdev);
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}
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struct vsp1_clu *vsp1_clu_create(struct vsp1_device *vsp1);
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#endif /* __VSP1_CLU_H__ */
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