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![Wei Yongjun](/assets/img/avatar_default.png)
Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...)). Generated by: scripts/coccinelle/api/err_cast.cocci Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
1709 lines
45 KiB
C
1709 lines
45 KiB
C
/*
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* Copyright (C) 2012-2016 Mentor Graphics Inc.
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*
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* Queued image conversion support, with tiling and rotation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include <linux/interrupt.h>
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#include <linux/dma-mapping.h>
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#include <video/imx-ipu-image-convert.h>
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#include "ipu-prv.h"
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/*
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* The IC Resizer has a restriction that the output frame from the
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* resizer must be 1024 or less in both width (pixels) and height
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* (lines).
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*
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* The image converter attempts to split up a conversion when
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* the desired output (converted) frame resolution exceeds the
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* IC resizer limit of 1024 in either dimension.
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*
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* If either dimension of the output frame exceeds the limit, the
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* dimension is split into 1, 2, or 4 equal stripes, for a maximum
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* of 4*4 or 16 tiles. A conversion is then carried out for each
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* tile (but taking care to pass the full frame stride length to
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* the DMA channel's parameter memory!). IDMA double-buffering is used
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* to convert each tile back-to-back when possible (see note below
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* when double_buffering boolean is set).
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*
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* Note that the input frame must be split up into the same number
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* of tiles as the output frame.
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*
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* FIXME: at this point there is no attempt to deal with visible seams
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* at the tile boundaries when upscaling. The seams are caused by a reset
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* of the bilinear upscale interpolation when starting a new tile. The
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* seams are barely visible for small upscale factors, but become
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* increasingly visible as the upscale factor gets larger, since more
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* interpolated pixels get thrown out at the tile boundaries. A possilble
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* fix might be to overlap tiles of different sizes, but this must be done
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* while also maintaining the IDMAC dma buffer address alignment and 8x8 IRT
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* alignment restrictions of each tile.
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*/
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#define MAX_STRIPES_W 4
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#define MAX_STRIPES_H 4
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#define MAX_TILES (MAX_STRIPES_W * MAX_STRIPES_H)
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#define MIN_W 16
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#define MIN_H 8
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#define MAX_W 4096
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#define MAX_H 4096
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enum ipu_image_convert_type {
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IMAGE_CONVERT_IN = 0,
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IMAGE_CONVERT_OUT,
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};
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struct ipu_image_convert_dma_buf {
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void *virt;
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dma_addr_t phys;
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unsigned long len;
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};
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struct ipu_image_convert_dma_chan {
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int in;
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int out;
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int rot_in;
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int rot_out;
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int vdi_in_p;
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int vdi_in;
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int vdi_in_n;
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};
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/* dimensions of one tile */
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struct ipu_image_tile {
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u32 width;
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u32 height;
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/* size and strides are in bytes */
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u32 size;
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u32 stride;
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u32 rot_stride;
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/* start Y or packed offset of this tile */
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u32 offset;
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/* offset from start to tile in U plane, for planar formats */
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u32 u_off;
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/* offset from start to tile in V plane, for planar formats */
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u32 v_off;
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};
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struct ipu_image_convert_image {
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struct ipu_image base;
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enum ipu_image_convert_type type;
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const struct ipu_image_pixfmt *fmt;
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unsigned int stride;
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/* # of rows (horizontal stripes) if dest height is > 1024 */
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unsigned int num_rows;
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/* # of columns (vertical stripes) if dest width is > 1024 */
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unsigned int num_cols;
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struct ipu_image_tile tile[MAX_TILES];
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};
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struct ipu_image_pixfmt {
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u32 fourcc; /* V4L2 fourcc */
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int bpp; /* total bpp */
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int uv_width_dec; /* decimation in width for U/V planes */
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int uv_height_dec; /* decimation in height for U/V planes */
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bool planar; /* planar format */
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bool uv_swapped; /* U and V planes are swapped */
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bool uv_packed; /* partial planar (U and V in same plane) */
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};
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struct ipu_image_convert_ctx;
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struct ipu_image_convert_chan;
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struct ipu_image_convert_priv;
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struct ipu_image_convert_ctx {
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struct ipu_image_convert_chan *chan;
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ipu_image_convert_cb_t complete;
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void *complete_context;
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/* Source/destination image data and rotation mode */
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struct ipu_image_convert_image in;
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struct ipu_image_convert_image out;
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enum ipu_rotate_mode rot_mode;
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/* intermediate buffer for rotation */
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struct ipu_image_convert_dma_buf rot_intermediate[2];
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/* current buffer number for double buffering */
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int cur_buf_num;
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bool aborting;
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struct completion aborted;
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/* can we use double-buffering for this conversion operation? */
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bool double_buffering;
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/* num_rows * num_cols */
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unsigned int num_tiles;
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/* next tile to process */
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unsigned int next_tile;
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/* where to place converted tile in dest image */
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unsigned int out_tile_map[MAX_TILES];
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struct list_head list;
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};
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struct ipu_image_convert_chan {
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struct ipu_image_convert_priv *priv;
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enum ipu_ic_task ic_task;
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const struct ipu_image_convert_dma_chan *dma_ch;
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struct ipu_ic *ic;
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struct ipuv3_channel *in_chan;
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struct ipuv3_channel *out_chan;
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struct ipuv3_channel *rotation_in_chan;
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struct ipuv3_channel *rotation_out_chan;
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/* the IPU end-of-frame irqs */
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int out_eof_irq;
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int rot_out_eof_irq;
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spinlock_t irqlock;
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/* list of convert contexts */
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struct list_head ctx_list;
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/* queue of conversion runs */
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struct list_head pending_q;
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/* queue of completed runs */
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struct list_head done_q;
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/* the current conversion run */
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struct ipu_image_convert_run *current_run;
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};
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struct ipu_image_convert_priv {
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struct ipu_image_convert_chan chan[IC_NUM_TASKS];
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struct ipu_soc *ipu;
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};
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static const struct ipu_image_convert_dma_chan
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image_convert_dma_chan[IC_NUM_TASKS] = {
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[IC_TASK_VIEWFINDER] = {
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.in = IPUV3_CHANNEL_MEM_IC_PRP_VF,
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.out = IPUV3_CHANNEL_IC_PRP_VF_MEM,
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.rot_in = IPUV3_CHANNEL_MEM_ROT_VF,
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.rot_out = IPUV3_CHANNEL_ROT_VF_MEM,
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.vdi_in_p = IPUV3_CHANNEL_MEM_VDI_PREV,
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.vdi_in = IPUV3_CHANNEL_MEM_VDI_CUR,
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.vdi_in_n = IPUV3_CHANNEL_MEM_VDI_NEXT,
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},
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[IC_TASK_POST_PROCESSOR] = {
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.in = IPUV3_CHANNEL_MEM_IC_PP,
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.out = IPUV3_CHANNEL_IC_PP_MEM,
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.rot_in = IPUV3_CHANNEL_MEM_ROT_PP,
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.rot_out = IPUV3_CHANNEL_ROT_PP_MEM,
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},
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};
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static const struct ipu_image_pixfmt image_convert_formats[] = {
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{
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.fourcc = V4L2_PIX_FMT_RGB565,
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.bpp = 16,
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}, {
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.fourcc = V4L2_PIX_FMT_RGB24,
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.bpp = 24,
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}, {
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.fourcc = V4L2_PIX_FMT_BGR24,
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.bpp = 24,
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}, {
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.fourcc = V4L2_PIX_FMT_RGB32,
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.bpp = 32,
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}, {
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.fourcc = V4L2_PIX_FMT_BGR32,
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.bpp = 32,
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}, {
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.fourcc = V4L2_PIX_FMT_YUYV,
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.bpp = 16,
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.uv_width_dec = 2,
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.uv_height_dec = 1,
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}, {
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.fourcc = V4L2_PIX_FMT_UYVY,
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.bpp = 16,
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.uv_width_dec = 2,
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.uv_height_dec = 1,
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}, {
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.fourcc = V4L2_PIX_FMT_YUV420,
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.bpp = 12,
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.planar = true,
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.uv_width_dec = 2,
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.uv_height_dec = 2,
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}, {
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.fourcc = V4L2_PIX_FMT_YVU420,
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.bpp = 12,
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.planar = true,
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.uv_width_dec = 2,
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.uv_height_dec = 2,
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.uv_swapped = true,
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}, {
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.fourcc = V4L2_PIX_FMT_NV12,
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.bpp = 12,
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.planar = true,
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.uv_width_dec = 2,
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.uv_height_dec = 2,
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.uv_packed = true,
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}, {
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.fourcc = V4L2_PIX_FMT_YUV422P,
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.bpp = 16,
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.planar = true,
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.uv_width_dec = 2,
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.uv_height_dec = 1,
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}, {
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.fourcc = V4L2_PIX_FMT_NV16,
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.bpp = 16,
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.planar = true,
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.uv_width_dec = 2,
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.uv_height_dec = 1,
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.uv_packed = true,
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},
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};
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static const struct ipu_image_pixfmt *get_format(u32 fourcc)
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{
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const struct ipu_image_pixfmt *ret = NULL;
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(image_convert_formats); i++) {
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if (image_convert_formats[i].fourcc == fourcc) {
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ret = &image_convert_formats[i];
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break;
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}
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}
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return ret;
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}
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static void dump_format(struct ipu_image_convert_ctx *ctx,
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struct ipu_image_convert_image *ic_image)
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{
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struct ipu_image_convert_chan *chan = ctx->chan;
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struct ipu_image_convert_priv *priv = chan->priv;
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dev_dbg(priv->ipu->dev,
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"task %u: ctx %p: %s format: %dx%d (%dx%d tiles of size %dx%d), %c%c%c%c\n",
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chan->ic_task, ctx,
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ic_image->type == IMAGE_CONVERT_OUT ? "Output" : "Input",
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ic_image->base.pix.width, ic_image->base.pix.height,
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ic_image->num_cols, ic_image->num_rows,
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ic_image->tile[0].width, ic_image->tile[0].height,
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ic_image->fmt->fourcc & 0xff,
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(ic_image->fmt->fourcc >> 8) & 0xff,
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(ic_image->fmt->fourcc >> 16) & 0xff,
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(ic_image->fmt->fourcc >> 24) & 0xff);
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}
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int ipu_image_convert_enum_format(int index, u32 *fourcc)
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{
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const struct ipu_image_pixfmt *fmt;
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if (index >= (int)ARRAY_SIZE(image_convert_formats))
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return -EINVAL;
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/* Format found */
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fmt = &image_convert_formats[index];
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*fourcc = fmt->fourcc;
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return 0;
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}
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EXPORT_SYMBOL_GPL(ipu_image_convert_enum_format);
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static void free_dma_buf(struct ipu_image_convert_priv *priv,
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struct ipu_image_convert_dma_buf *buf)
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{
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if (buf->virt)
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dma_free_coherent(priv->ipu->dev,
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buf->len, buf->virt, buf->phys);
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buf->virt = NULL;
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buf->phys = 0;
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}
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static int alloc_dma_buf(struct ipu_image_convert_priv *priv,
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struct ipu_image_convert_dma_buf *buf,
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int size)
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{
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buf->len = PAGE_ALIGN(size);
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buf->virt = dma_alloc_coherent(priv->ipu->dev, buf->len, &buf->phys,
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GFP_DMA | GFP_KERNEL);
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if (!buf->virt) {
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dev_err(priv->ipu->dev, "failed to alloc dma buffer\n");
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return -ENOMEM;
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}
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return 0;
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}
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static inline int num_stripes(int dim)
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{
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if (dim <= 1024)
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return 1;
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else if (dim <= 2048)
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return 2;
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else
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return 4;
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}
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static void calc_tile_dimensions(struct ipu_image_convert_ctx *ctx,
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struct ipu_image_convert_image *image)
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{
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int i;
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for (i = 0; i < ctx->num_tiles; i++) {
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struct ipu_image_tile *tile = &image->tile[i];
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tile->height = image->base.pix.height / image->num_rows;
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tile->width = image->base.pix.width / image->num_cols;
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tile->size = ((tile->height * image->fmt->bpp) >> 3) *
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tile->width;
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if (image->fmt->planar) {
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tile->stride = tile->width;
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tile->rot_stride = tile->height;
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} else {
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tile->stride =
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(image->fmt->bpp * tile->width) >> 3;
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tile->rot_stride =
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(image->fmt->bpp * tile->height) >> 3;
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}
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}
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}
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/*
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* Use the rotation transformation to find the tile coordinates
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* (row, col) of a tile in the destination frame that corresponds
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* to the given tile coordinates of a source frame. The destination
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* coordinate is then converted to a tile index.
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*/
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static int transform_tile_index(struct ipu_image_convert_ctx *ctx,
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int src_row, int src_col)
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{
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struct ipu_image_convert_chan *chan = ctx->chan;
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struct ipu_image_convert_priv *priv = chan->priv;
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struct ipu_image_convert_image *s_image = &ctx->in;
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struct ipu_image_convert_image *d_image = &ctx->out;
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int dst_row, dst_col;
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/* with no rotation it's a 1:1 mapping */
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if (ctx->rot_mode == IPU_ROTATE_NONE)
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return src_row * s_image->num_cols + src_col;
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/*
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* before doing the transform, first we have to translate
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* source row,col for an origin in the center of s_image
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*/
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src_row = src_row * 2 - (s_image->num_rows - 1);
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src_col = src_col * 2 - (s_image->num_cols - 1);
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/* do the rotation transform */
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if (ctx->rot_mode & IPU_ROT_BIT_90) {
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dst_col = -src_row;
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dst_row = src_col;
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} else {
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dst_col = src_col;
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dst_row = src_row;
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}
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/* apply flip */
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if (ctx->rot_mode & IPU_ROT_BIT_HFLIP)
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dst_col = -dst_col;
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if (ctx->rot_mode & IPU_ROT_BIT_VFLIP)
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dst_row = -dst_row;
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dev_dbg(priv->ipu->dev, "task %u: ctx %p: [%d,%d] --> [%d,%d]\n",
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chan->ic_task, ctx, src_col, src_row, dst_col, dst_row);
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/*
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* finally translate dest row,col using an origin in upper
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* left of d_image
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*/
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dst_row += d_image->num_rows - 1;
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dst_col += d_image->num_cols - 1;
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dst_row /= 2;
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dst_col /= 2;
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return dst_row * d_image->num_cols + dst_col;
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}
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/*
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* Fill the out_tile_map[] with transformed destination tile indeces.
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*/
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static void calc_out_tile_map(struct ipu_image_convert_ctx *ctx)
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{
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struct ipu_image_convert_image *s_image = &ctx->in;
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unsigned int row, col, tile = 0;
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for (row = 0; row < s_image->num_rows; row++) {
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for (col = 0; col < s_image->num_cols; col++) {
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ctx->out_tile_map[tile] =
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transform_tile_index(ctx, row, col);
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tile++;
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}
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}
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}
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static void calc_tile_offsets_planar(struct ipu_image_convert_ctx *ctx,
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struct ipu_image_convert_image *image)
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{
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struct ipu_image_convert_chan *chan = ctx->chan;
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struct ipu_image_convert_priv *priv = chan->priv;
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const struct ipu_image_pixfmt *fmt = image->fmt;
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unsigned int row, col, tile = 0;
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u32 H, w, h, y_stride, uv_stride;
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u32 uv_row_off, uv_col_off, uv_off, u_off, v_off, tmp;
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u32 y_row_off, y_col_off, y_off;
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u32 y_size, uv_size;
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/* setup some convenience vars */
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H = image->base.pix.height;
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y_stride = image->stride;
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uv_stride = y_stride / fmt->uv_width_dec;
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if (fmt->uv_packed)
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uv_stride *= 2;
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y_size = H * y_stride;
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uv_size = y_size / (fmt->uv_width_dec * fmt->uv_height_dec);
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for (row = 0; row < image->num_rows; row++) {
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w = image->tile[tile].width;
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h = image->tile[tile].height;
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y_row_off = row * h * y_stride;
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uv_row_off = (row * h * uv_stride) / fmt->uv_height_dec;
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for (col = 0; col < image->num_cols; col++) {
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y_col_off = col * w;
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uv_col_off = y_col_off / fmt->uv_width_dec;
|
|
if (fmt->uv_packed)
|
|
uv_col_off *= 2;
|
|
|
|
y_off = y_row_off + y_col_off;
|
|
uv_off = uv_row_off + uv_col_off;
|
|
|
|
u_off = y_size - y_off + uv_off;
|
|
v_off = (fmt->uv_packed) ? 0 : u_off + uv_size;
|
|
if (fmt->uv_swapped) {
|
|
tmp = u_off;
|
|
u_off = v_off;
|
|
v_off = tmp;
|
|
}
|
|
|
|
image->tile[tile].offset = y_off;
|
|
image->tile[tile].u_off = u_off;
|
|
image->tile[tile++].v_off = v_off;
|
|
|
|
dev_dbg(priv->ipu->dev,
|
|
"task %u: ctx %p: %s@[%d,%d]: y_off %08x, u_off %08x, v_off %08x\n",
|
|
chan->ic_task, ctx,
|
|
image->type == IMAGE_CONVERT_IN ?
|
|
"Input" : "Output", row, col,
|
|
y_off, u_off, v_off);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void calc_tile_offsets_packed(struct ipu_image_convert_ctx *ctx,
|
|
struct ipu_image_convert_image *image)
|
|
{
|
|
struct ipu_image_convert_chan *chan = ctx->chan;
|
|
struct ipu_image_convert_priv *priv = chan->priv;
|
|
const struct ipu_image_pixfmt *fmt = image->fmt;
|
|
unsigned int row, col, tile = 0;
|
|
u32 w, h, bpp, stride;
|
|
u32 row_off, col_off;
|
|
|
|
/* setup some convenience vars */
|
|
stride = image->stride;
|
|
bpp = fmt->bpp;
|
|
|
|
for (row = 0; row < image->num_rows; row++) {
|
|
w = image->tile[tile].width;
|
|
h = image->tile[tile].height;
|
|
row_off = row * h * stride;
|
|
|
|
for (col = 0; col < image->num_cols; col++) {
|
|
col_off = (col * w * bpp) >> 3;
|
|
|
|
image->tile[tile].offset = row_off + col_off;
|
|
image->tile[tile].u_off = 0;
|
|
image->tile[tile++].v_off = 0;
|
|
|
|
dev_dbg(priv->ipu->dev,
|
|
"task %u: ctx %p: %s@[%d,%d]: phys %08x\n",
|
|
chan->ic_task, ctx,
|
|
image->type == IMAGE_CONVERT_IN ?
|
|
"Input" : "Output", row, col,
|
|
row_off + col_off);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void calc_tile_offsets(struct ipu_image_convert_ctx *ctx,
|
|
struct ipu_image_convert_image *image)
|
|
{
|
|
if (image->fmt->planar)
|
|
calc_tile_offsets_planar(ctx, image);
|
|
else
|
|
calc_tile_offsets_packed(ctx, image);
|
|
}
|
|
|
|
/*
|
|
* return the number of runs in given queue (pending_q or done_q)
|
|
* for this context. hold irqlock when calling.
|
|
*/
|
|
static int get_run_count(struct ipu_image_convert_ctx *ctx,
|
|
struct list_head *q)
|
|
{
|
|
struct ipu_image_convert_run *run;
|
|
int count = 0;
|
|
|
|
lockdep_assert_held(&ctx->chan->irqlock);
|
|
|
|
list_for_each_entry(run, q, list) {
|
|
if (run->ctx == ctx)
|
|
count++;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static void convert_stop(struct ipu_image_convert_run *run)
|
|
{
|
|
struct ipu_image_convert_ctx *ctx = run->ctx;
|
|
struct ipu_image_convert_chan *chan = ctx->chan;
|
|
struct ipu_image_convert_priv *priv = chan->priv;
|
|
|
|
dev_dbg(priv->ipu->dev, "%s: task %u: stopping ctx %p run %p\n",
|
|
__func__, chan->ic_task, ctx, run);
|
|
|
|
/* disable IC tasks and the channels */
|
|
ipu_ic_task_disable(chan->ic);
|
|
ipu_idmac_disable_channel(chan->in_chan);
|
|
ipu_idmac_disable_channel(chan->out_chan);
|
|
|
|
if (ipu_rot_mode_is_irt(ctx->rot_mode)) {
|
|
ipu_idmac_disable_channel(chan->rotation_in_chan);
|
|
ipu_idmac_disable_channel(chan->rotation_out_chan);
|
|
ipu_idmac_unlink(chan->out_chan, chan->rotation_in_chan);
|
|
}
|
|
|
|
ipu_ic_disable(chan->ic);
|
|
}
|
|
|
|
static void init_idmac_channel(struct ipu_image_convert_ctx *ctx,
|
|
struct ipuv3_channel *channel,
|
|
struct ipu_image_convert_image *image,
|
|
enum ipu_rotate_mode rot_mode,
|
|
bool rot_swap_width_height)
|
|
{
|
|
struct ipu_image_convert_chan *chan = ctx->chan;
|
|
unsigned int burst_size;
|
|
u32 width, height, stride;
|
|
dma_addr_t addr0, addr1 = 0;
|
|
struct ipu_image tile_image;
|
|
unsigned int tile_idx[2];
|
|
|
|
if (image->type == IMAGE_CONVERT_OUT) {
|
|
tile_idx[0] = ctx->out_tile_map[0];
|
|
tile_idx[1] = ctx->out_tile_map[1];
|
|
} else {
|
|
tile_idx[0] = 0;
|
|
tile_idx[1] = 1;
|
|
}
|
|
|
|
if (rot_swap_width_height) {
|
|
width = image->tile[0].height;
|
|
height = image->tile[0].width;
|
|
stride = image->tile[0].rot_stride;
|
|
addr0 = ctx->rot_intermediate[0].phys;
|
|
if (ctx->double_buffering)
|
|
addr1 = ctx->rot_intermediate[1].phys;
|
|
} else {
|
|
width = image->tile[0].width;
|
|
height = image->tile[0].height;
|
|
stride = image->stride;
|
|
addr0 = image->base.phys0 +
|
|
image->tile[tile_idx[0]].offset;
|
|
if (ctx->double_buffering)
|
|
addr1 = image->base.phys0 +
|
|
image->tile[tile_idx[1]].offset;
|
|
}
|
|
|
|
ipu_cpmem_zero(channel);
|
|
|
|
memset(&tile_image, 0, sizeof(tile_image));
|
|
tile_image.pix.width = tile_image.rect.width = width;
|
|
tile_image.pix.height = tile_image.rect.height = height;
|
|
tile_image.pix.bytesperline = stride;
|
|
tile_image.pix.pixelformat = image->fmt->fourcc;
|
|
tile_image.phys0 = addr0;
|
|
tile_image.phys1 = addr1;
|
|
ipu_cpmem_set_image(channel, &tile_image);
|
|
|
|
if (image->fmt->planar && !rot_swap_width_height)
|
|
ipu_cpmem_set_uv_offset(channel,
|
|
image->tile[tile_idx[0]].u_off,
|
|
image->tile[tile_idx[0]].v_off);
|
|
|
|
if (rot_mode)
|
|
ipu_cpmem_set_rotation(channel, rot_mode);
|
|
|
|
if (channel == chan->rotation_in_chan ||
|
|
channel == chan->rotation_out_chan) {
|
|
burst_size = 8;
|
|
ipu_cpmem_set_block_mode(channel);
|
|
} else
|
|
burst_size = (width % 16) ? 8 : 16;
|
|
|
|
ipu_cpmem_set_burstsize(channel, burst_size);
|
|
|
|
ipu_ic_task_idma_init(chan->ic, channel, width, height,
|
|
burst_size, rot_mode);
|
|
|
|
ipu_cpmem_set_axi_id(channel, 1);
|
|
|
|
ipu_idmac_set_double_buffer(channel, ctx->double_buffering);
|
|
}
|
|
|
|
static int convert_start(struct ipu_image_convert_run *run)
|
|
{
|
|
struct ipu_image_convert_ctx *ctx = run->ctx;
|
|
struct ipu_image_convert_chan *chan = ctx->chan;
|
|
struct ipu_image_convert_priv *priv = chan->priv;
|
|
struct ipu_image_convert_image *s_image = &ctx->in;
|
|
struct ipu_image_convert_image *d_image = &ctx->out;
|
|
enum ipu_color_space src_cs, dest_cs;
|
|
unsigned int dest_width, dest_height;
|
|
int ret;
|
|
|
|
dev_dbg(priv->ipu->dev, "%s: task %u: starting ctx %p run %p\n",
|
|
__func__, chan->ic_task, ctx, run);
|
|
|
|
src_cs = ipu_pixelformat_to_colorspace(s_image->fmt->fourcc);
|
|
dest_cs = ipu_pixelformat_to_colorspace(d_image->fmt->fourcc);
|
|
|
|
if (ipu_rot_mode_is_irt(ctx->rot_mode)) {
|
|
/* swap width/height for resizer */
|
|
dest_width = d_image->tile[0].height;
|
|
dest_height = d_image->tile[0].width;
|
|
} else {
|
|
dest_width = d_image->tile[0].width;
|
|
dest_height = d_image->tile[0].height;
|
|
}
|
|
|
|
/* setup the IC resizer and CSC */
|
|
ret = ipu_ic_task_init(chan->ic,
|
|
s_image->tile[0].width,
|
|
s_image->tile[0].height,
|
|
dest_width,
|
|
dest_height,
|
|
src_cs, dest_cs);
|
|
if (ret) {
|
|
dev_err(priv->ipu->dev, "ipu_ic_task_init failed, %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* init the source MEM-->IC PP IDMAC channel */
|
|
init_idmac_channel(ctx, chan->in_chan, s_image,
|
|
IPU_ROTATE_NONE, false);
|
|
|
|
if (ipu_rot_mode_is_irt(ctx->rot_mode)) {
|
|
/* init the IC PP-->MEM IDMAC channel */
|
|
init_idmac_channel(ctx, chan->out_chan, d_image,
|
|
IPU_ROTATE_NONE, true);
|
|
|
|
/* init the MEM-->IC PP ROT IDMAC channel */
|
|
init_idmac_channel(ctx, chan->rotation_in_chan, d_image,
|
|
ctx->rot_mode, true);
|
|
|
|
/* init the destination IC PP ROT-->MEM IDMAC channel */
|
|
init_idmac_channel(ctx, chan->rotation_out_chan, d_image,
|
|
IPU_ROTATE_NONE, false);
|
|
|
|
/* now link IC PP-->MEM to MEM-->IC PP ROT */
|
|
ipu_idmac_link(chan->out_chan, chan->rotation_in_chan);
|
|
} else {
|
|
/* init the destination IC PP-->MEM IDMAC channel */
|
|
init_idmac_channel(ctx, chan->out_chan, d_image,
|
|
ctx->rot_mode, false);
|
|
}
|
|
|
|
/* enable the IC */
|
|
ipu_ic_enable(chan->ic);
|
|
|
|
/* set buffers ready */
|
|
ipu_idmac_select_buffer(chan->in_chan, 0);
|
|
ipu_idmac_select_buffer(chan->out_chan, 0);
|
|
if (ipu_rot_mode_is_irt(ctx->rot_mode))
|
|
ipu_idmac_select_buffer(chan->rotation_out_chan, 0);
|
|
if (ctx->double_buffering) {
|
|
ipu_idmac_select_buffer(chan->in_chan, 1);
|
|
ipu_idmac_select_buffer(chan->out_chan, 1);
|
|
if (ipu_rot_mode_is_irt(ctx->rot_mode))
|
|
ipu_idmac_select_buffer(chan->rotation_out_chan, 1);
|
|
}
|
|
|
|
/* enable the channels! */
|
|
ipu_idmac_enable_channel(chan->in_chan);
|
|
ipu_idmac_enable_channel(chan->out_chan);
|
|
if (ipu_rot_mode_is_irt(ctx->rot_mode)) {
|
|
ipu_idmac_enable_channel(chan->rotation_in_chan);
|
|
ipu_idmac_enable_channel(chan->rotation_out_chan);
|
|
}
|
|
|
|
ipu_ic_task_enable(chan->ic);
|
|
|
|
ipu_cpmem_dump(chan->in_chan);
|
|
ipu_cpmem_dump(chan->out_chan);
|
|
if (ipu_rot_mode_is_irt(ctx->rot_mode)) {
|
|
ipu_cpmem_dump(chan->rotation_in_chan);
|
|
ipu_cpmem_dump(chan->rotation_out_chan);
|
|
}
|
|
|
|
ipu_dump(priv->ipu);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* hold irqlock when calling */
|
|
static int do_run(struct ipu_image_convert_run *run)
|
|
{
|
|
struct ipu_image_convert_ctx *ctx = run->ctx;
|
|
struct ipu_image_convert_chan *chan = ctx->chan;
|
|
|
|
lockdep_assert_held(&chan->irqlock);
|
|
|
|
ctx->in.base.phys0 = run->in_phys;
|
|
ctx->out.base.phys0 = run->out_phys;
|
|
|
|
ctx->cur_buf_num = 0;
|
|
ctx->next_tile = 1;
|
|
|
|
/* remove run from pending_q and set as current */
|
|
list_del(&run->list);
|
|
chan->current_run = run;
|
|
|
|
return convert_start(run);
|
|
}
|
|
|
|
/* hold irqlock when calling */
|
|
static void run_next(struct ipu_image_convert_chan *chan)
|
|
{
|
|
struct ipu_image_convert_priv *priv = chan->priv;
|
|
struct ipu_image_convert_run *run, *tmp;
|
|
int ret;
|
|
|
|
lockdep_assert_held(&chan->irqlock);
|
|
|
|
list_for_each_entry_safe(run, tmp, &chan->pending_q, list) {
|
|
/* skip contexts that are aborting */
|
|
if (run->ctx->aborting) {
|
|
dev_dbg(priv->ipu->dev,
|
|
"%s: task %u: skipping aborting ctx %p run %p\n",
|
|
__func__, chan->ic_task, run->ctx, run);
|
|
continue;
|
|
}
|
|
|
|
ret = do_run(run);
|
|
if (!ret)
|
|
break;
|
|
|
|
/*
|
|
* something went wrong with start, add the run
|
|
* to done q and continue to the next run in the
|
|
* pending q.
|
|
*/
|
|
run->status = ret;
|
|
list_add_tail(&run->list, &chan->done_q);
|
|
chan->current_run = NULL;
|
|
}
|
|
}
|
|
|
|
static void empty_done_q(struct ipu_image_convert_chan *chan)
|
|
{
|
|
struct ipu_image_convert_priv *priv = chan->priv;
|
|
struct ipu_image_convert_run *run;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
|
|
while (!list_empty(&chan->done_q)) {
|
|
run = list_entry(chan->done_q.next,
|
|
struct ipu_image_convert_run,
|
|
list);
|
|
|
|
list_del(&run->list);
|
|
|
|
dev_dbg(priv->ipu->dev,
|
|
"%s: task %u: completing ctx %p run %p with %d\n",
|
|
__func__, chan->ic_task, run->ctx, run, run->status);
|
|
|
|
/* call the completion callback and free the run */
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
run->ctx->complete(run, run->ctx->complete_context);
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
}
|
|
|
|
/*
|
|
* the bottom half thread clears out the done_q, calling the
|
|
* completion handler for each.
|
|
*/
|
|
static irqreturn_t do_bh(int irq, void *dev_id)
|
|
{
|
|
struct ipu_image_convert_chan *chan = dev_id;
|
|
struct ipu_image_convert_priv *priv = chan->priv;
|
|
struct ipu_image_convert_ctx *ctx;
|
|
unsigned long flags;
|
|
|
|
dev_dbg(priv->ipu->dev, "%s: task %u: enter\n", __func__,
|
|
chan->ic_task);
|
|
|
|
empty_done_q(chan);
|
|
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
|
|
/*
|
|
* the done_q is cleared out, signal any contexts
|
|
* that are aborting that abort can complete.
|
|
*/
|
|
list_for_each_entry(ctx, &chan->ctx_list, list) {
|
|
if (ctx->aborting) {
|
|
dev_dbg(priv->ipu->dev,
|
|
"%s: task %u: signaling abort for ctx %p\n",
|
|
__func__, chan->ic_task, ctx);
|
|
complete(&ctx->aborted);
|
|
}
|
|
}
|
|
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
|
|
dev_dbg(priv->ipu->dev, "%s: task %u: exit\n", __func__,
|
|
chan->ic_task);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/* hold irqlock when calling */
|
|
static irqreturn_t do_irq(struct ipu_image_convert_run *run)
|
|
{
|
|
struct ipu_image_convert_ctx *ctx = run->ctx;
|
|
struct ipu_image_convert_chan *chan = ctx->chan;
|
|
struct ipu_image_tile *src_tile, *dst_tile;
|
|
struct ipu_image_convert_image *s_image = &ctx->in;
|
|
struct ipu_image_convert_image *d_image = &ctx->out;
|
|
struct ipuv3_channel *outch;
|
|
unsigned int dst_idx;
|
|
|
|
lockdep_assert_held(&chan->irqlock);
|
|
|
|
outch = ipu_rot_mode_is_irt(ctx->rot_mode) ?
|
|
chan->rotation_out_chan : chan->out_chan;
|
|
|
|
/*
|
|
* It is difficult to stop the channel DMA before the channels
|
|
* enter the paused state. Without double-buffering the channels
|
|
* are always in a paused state when the EOF irq occurs, so it
|
|
* is safe to stop the channels now. For double-buffering we
|
|
* just ignore the abort until the operation completes, when it
|
|
* is safe to shut down.
|
|
*/
|
|
if (ctx->aborting && !ctx->double_buffering) {
|
|
convert_stop(run);
|
|
run->status = -EIO;
|
|
goto done;
|
|
}
|
|
|
|
if (ctx->next_tile == ctx->num_tiles) {
|
|
/*
|
|
* the conversion is complete
|
|
*/
|
|
convert_stop(run);
|
|
run->status = 0;
|
|
goto done;
|
|
}
|
|
|
|
/*
|
|
* not done, place the next tile buffers.
|
|
*/
|
|
if (!ctx->double_buffering) {
|
|
|
|
src_tile = &s_image->tile[ctx->next_tile];
|
|
dst_idx = ctx->out_tile_map[ctx->next_tile];
|
|
dst_tile = &d_image->tile[dst_idx];
|
|
|
|
ipu_cpmem_set_buffer(chan->in_chan, 0,
|
|
s_image->base.phys0 + src_tile->offset);
|
|
ipu_cpmem_set_buffer(outch, 0,
|
|
d_image->base.phys0 + dst_tile->offset);
|
|
if (s_image->fmt->planar)
|
|
ipu_cpmem_set_uv_offset(chan->in_chan,
|
|
src_tile->u_off,
|
|
src_tile->v_off);
|
|
if (d_image->fmt->planar)
|
|
ipu_cpmem_set_uv_offset(outch,
|
|
dst_tile->u_off,
|
|
dst_tile->v_off);
|
|
|
|
ipu_idmac_select_buffer(chan->in_chan, 0);
|
|
ipu_idmac_select_buffer(outch, 0);
|
|
|
|
} else if (ctx->next_tile < ctx->num_tiles - 1) {
|
|
|
|
src_tile = &s_image->tile[ctx->next_tile + 1];
|
|
dst_idx = ctx->out_tile_map[ctx->next_tile + 1];
|
|
dst_tile = &d_image->tile[dst_idx];
|
|
|
|
ipu_cpmem_set_buffer(chan->in_chan, ctx->cur_buf_num,
|
|
s_image->base.phys0 + src_tile->offset);
|
|
ipu_cpmem_set_buffer(outch, ctx->cur_buf_num,
|
|
d_image->base.phys0 + dst_tile->offset);
|
|
|
|
ipu_idmac_select_buffer(chan->in_chan, ctx->cur_buf_num);
|
|
ipu_idmac_select_buffer(outch, ctx->cur_buf_num);
|
|
|
|
ctx->cur_buf_num ^= 1;
|
|
}
|
|
|
|
ctx->next_tile++;
|
|
return IRQ_HANDLED;
|
|
done:
|
|
list_add_tail(&run->list, &chan->done_q);
|
|
chan->current_run = NULL;
|
|
run_next(chan);
|
|
return IRQ_WAKE_THREAD;
|
|
}
|
|
|
|
static irqreturn_t norotate_irq(int irq, void *data)
|
|
{
|
|
struct ipu_image_convert_chan *chan = data;
|
|
struct ipu_image_convert_ctx *ctx;
|
|
struct ipu_image_convert_run *run;
|
|
unsigned long flags;
|
|
irqreturn_t ret;
|
|
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
|
|
/* get current run and its context */
|
|
run = chan->current_run;
|
|
if (!run) {
|
|
ret = IRQ_NONE;
|
|
goto out;
|
|
}
|
|
|
|
ctx = run->ctx;
|
|
|
|
if (ipu_rot_mode_is_irt(ctx->rot_mode)) {
|
|
/* this is a rotation operation, just ignore */
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
ret = do_irq(run);
|
|
out:
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
return ret;
|
|
}
|
|
|
|
static irqreturn_t rotate_irq(int irq, void *data)
|
|
{
|
|
struct ipu_image_convert_chan *chan = data;
|
|
struct ipu_image_convert_priv *priv = chan->priv;
|
|
struct ipu_image_convert_ctx *ctx;
|
|
struct ipu_image_convert_run *run;
|
|
unsigned long flags;
|
|
irqreturn_t ret;
|
|
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
|
|
/* get current run and its context */
|
|
run = chan->current_run;
|
|
if (!run) {
|
|
ret = IRQ_NONE;
|
|
goto out;
|
|
}
|
|
|
|
ctx = run->ctx;
|
|
|
|
if (!ipu_rot_mode_is_irt(ctx->rot_mode)) {
|
|
/* this was NOT a rotation operation, shouldn't happen */
|
|
dev_err(priv->ipu->dev, "Unexpected rotation interrupt\n");
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
ret = do_irq(run);
|
|
out:
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* try to force the completion of runs for this ctx. Called when
|
|
* abort wait times out in ipu_image_convert_abort().
|
|
*/
|
|
static void force_abort(struct ipu_image_convert_ctx *ctx)
|
|
{
|
|
struct ipu_image_convert_chan *chan = ctx->chan;
|
|
struct ipu_image_convert_run *run;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
|
|
run = chan->current_run;
|
|
if (run && run->ctx == ctx) {
|
|
convert_stop(run);
|
|
run->status = -EIO;
|
|
list_add_tail(&run->list, &chan->done_q);
|
|
chan->current_run = NULL;
|
|
run_next(chan);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
|
|
empty_done_q(chan);
|
|
}
|
|
|
|
static void release_ipu_resources(struct ipu_image_convert_chan *chan)
|
|
{
|
|
if (chan->out_eof_irq >= 0)
|
|
free_irq(chan->out_eof_irq, chan);
|
|
if (chan->rot_out_eof_irq >= 0)
|
|
free_irq(chan->rot_out_eof_irq, chan);
|
|
|
|
if (!IS_ERR_OR_NULL(chan->in_chan))
|
|
ipu_idmac_put(chan->in_chan);
|
|
if (!IS_ERR_OR_NULL(chan->out_chan))
|
|
ipu_idmac_put(chan->out_chan);
|
|
if (!IS_ERR_OR_NULL(chan->rotation_in_chan))
|
|
ipu_idmac_put(chan->rotation_in_chan);
|
|
if (!IS_ERR_OR_NULL(chan->rotation_out_chan))
|
|
ipu_idmac_put(chan->rotation_out_chan);
|
|
if (!IS_ERR_OR_NULL(chan->ic))
|
|
ipu_ic_put(chan->ic);
|
|
|
|
chan->in_chan = chan->out_chan = chan->rotation_in_chan =
|
|
chan->rotation_out_chan = NULL;
|
|
chan->out_eof_irq = chan->rot_out_eof_irq = -1;
|
|
}
|
|
|
|
static int get_ipu_resources(struct ipu_image_convert_chan *chan)
|
|
{
|
|
const struct ipu_image_convert_dma_chan *dma = chan->dma_ch;
|
|
struct ipu_image_convert_priv *priv = chan->priv;
|
|
int ret;
|
|
|
|
/* get IC */
|
|
chan->ic = ipu_ic_get(priv->ipu, chan->ic_task);
|
|
if (IS_ERR(chan->ic)) {
|
|
dev_err(priv->ipu->dev, "could not acquire IC\n");
|
|
ret = PTR_ERR(chan->ic);
|
|
goto err;
|
|
}
|
|
|
|
/* get IDMAC channels */
|
|
chan->in_chan = ipu_idmac_get(priv->ipu, dma->in);
|
|
chan->out_chan = ipu_idmac_get(priv->ipu, dma->out);
|
|
if (IS_ERR(chan->in_chan) || IS_ERR(chan->out_chan)) {
|
|
dev_err(priv->ipu->dev, "could not acquire idmac channels\n");
|
|
ret = -EBUSY;
|
|
goto err;
|
|
}
|
|
|
|
chan->rotation_in_chan = ipu_idmac_get(priv->ipu, dma->rot_in);
|
|
chan->rotation_out_chan = ipu_idmac_get(priv->ipu, dma->rot_out);
|
|
if (IS_ERR(chan->rotation_in_chan) || IS_ERR(chan->rotation_out_chan)) {
|
|
dev_err(priv->ipu->dev,
|
|
"could not acquire idmac rotation channels\n");
|
|
ret = -EBUSY;
|
|
goto err;
|
|
}
|
|
|
|
/* acquire the EOF interrupts */
|
|
chan->out_eof_irq = ipu_idmac_channel_irq(priv->ipu,
|
|
chan->out_chan,
|
|
IPU_IRQ_EOF);
|
|
|
|
ret = request_threaded_irq(chan->out_eof_irq, norotate_irq, do_bh,
|
|
0, "ipu-ic", chan);
|
|
if (ret < 0) {
|
|
dev_err(priv->ipu->dev, "could not acquire irq %d\n",
|
|
chan->out_eof_irq);
|
|
chan->out_eof_irq = -1;
|
|
goto err;
|
|
}
|
|
|
|
chan->rot_out_eof_irq = ipu_idmac_channel_irq(priv->ipu,
|
|
chan->rotation_out_chan,
|
|
IPU_IRQ_EOF);
|
|
|
|
ret = request_threaded_irq(chan->rot_out_eof_irq, rotate_irq, do_bh,
|
|
0, "ipu-ic", chan);
|
|
if (ret < 0) {
|
|
dev_err(priv->ipu->dev, "could not acquire irq %d\n",
|
|
chan->rot_out_eof_irq);
|
|
chan->rot_out_eof_irq = -1;
|
|
goto err;
|
|
}
|
|
|
|
return 0;
|
|
err:
|
|
release_ipu_resources(chan);
|
|
return ret;
|
|
}
|
|
|
|
static int fill_image(struct ipu_image_convert_ctx *ctx,
|
|
struct ipu_image_convert_image *ic_image,
|
|
struct ipu_image *image,
|
|
enum ipu_image_convert_type type)
|
|
{
|
|
struct ipu_image_convert_priv *priv = ctx->chan->priv;
|
|
|
|
ic_image->base = *image;
|
|
ic_image->type = type;
|
|
|
|
ic_image->fmt = get_format(image->pix.pixelformat);
|
|
if (!ic_image->fmt) {
|
|
dev_err(priv->ipu->dev, "pixelformat not supported for %s\n",
|
|
type == IMAGE_CONVERT_OUT ? "Output" : "Input");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (ic_image->fmt->planar)
|
|
ic_image->stride = ic_image->base.pix.width;
|
|
else
|
|
ic_image->stride = ic_image->base.pix.bytesperline;
|
|
|
|
calc_tile_dimensions(ctx, ic_image);
|
|
calc_tile_offsets(ctx, ic_image);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* borrowed from drivers/media/v4l2-core/v4l2-common.c */
|
|
static unsigned int clamp_align(unsigned int x, unsigned int min,
|
|
unsigned int max, unsigned int align)
|
|
{
|
|
/* Bits that must be zero to be aligned */
|
|
unsigned int mask = ~((1 << align) - 1);
|
|
|
|
/* Clamp to aligned min and max */
|
|
x = clamp(x, (min + ~mask) & mask, max & mask);
|
|
|
|
/* Round to nearest aligned value */
|
|
if (align)
|
|
x = (x + (1 << (align - 1))) & mask;
|
|
|
|
return x;
|
|
}
|
|
|
|
/*
|
|
* We have to adjust the tile width such that the tile physaddrs and
|
|
* U and V plane offsets are multiples of 8 bytes as required by
|
|
* the IPU DMA Controller. For the planar formats, this corresponds
|
|
* to a pixel alignment of 16 (but use a more formal equation since
|
|
* the variables are available). For all the packed formats, 8 is
|
|
* good enough.
|
|
*/
|
|
static inline u32 tile_width_align(const struct ipu_image_pixfmt *fmt)
|
|
{
|
|
return fmt->planar ? 8 * fmt->uv_width_dec : 8;
|
|
}
|
|
|
|
/*
|
|
* For tile height alignment, we have to ensure that the output tile
|
|
* heights are multiples of 8 lines if the IRT is required by the
|
|
* given rotation mode (the IRT performs rotations on 8x8 blocks
|
|
* at a time). If the IRT is not used, or for input image tiles,
|
|
* 2 lines are good enough.
|
|
*/
|
|
static inline u32 tile_height_align(enum ipu_image_convert_type type,
|
|
enum ipu_rotate_mode rot_mode)
|
|
{
|
|
return (type == IMAGE_CONVERT_OUT &&
|
|
ipu_rot_mode_is_irt(rot_mode)) ? 8 : 2;
|
|
}
|
|
|
|
/* Adjusts input/output images to IPU restrictions */
|
|
void ipu_image_convert_adjust(struct ipu_image *in, struct ipu_image *out,
|
|
enum ipu_rotate_mode rot_mode)
|
|
{
|
|
const struct ipu_image_pixfmt *infmt, *outfmt;
|
|
unsigned int num_in_rows, num_in_cols;
|
|
unsigned int num_out_rows, num_out_cols;
|
|
u32 w_align, h_align;
|
|
|
|
infmt = get_format(in->pix.pixelformat);
|
|
outfmt = get_format(out->pix.pixelformat);
|
|
|
|
/* set some default pixel formats if needed */
|
|
if (!infmt) {
|
|
in->pix.pixelformat = V4L2_PIX_FMT_RGB24;
|
|
infmt = get_format(V4L2_PIX_FMT_RGB24);
|
|
}
|
|
if (!outfmt) {
|
|
out->pix.pixelformat = V4L2_PIX_FMT_RGB24;
|
|
outfmt = get_format(V4L2_PIX_FMT_RGB24);
|
|
}
|
|
|
|
/* image converter does not handle fields */
|
|
in->pix.field = out->pix.field = V4L2_FIELD_NONE;
|
|
|
|
/* resizer cannot downsize more than 4:1 */
|
|
if (ipu_rot_mode_is_irt(rot_mode)) {
|
|
out->pix.height = max_t(__u32, out->pix.height,
|
|
in->pix.width / 4);
|
|
out->pix.width = max_t(__u32, out->pix.width,
|
|
in->pix.height / 4);
|
|
} else {
|
|
out->pix.width = max_t(__u32, out->pix.width,
|
|
in->pix.width / 4);
|
|
out->pix.height = max_t(__u32, out->pix.height,
|
|
in->pix.height / 4);
|
|
}
|
|
|
|
/* get tiling rows/cols from output format */
|
|
num_out_rows = num_stripes(out->pix.height);
|
|
num_out_cols = num_stripes(out->pix.width);
|
|
if (ipu_rot_mode_is_irt(rot_mode)) {
|
|
num_in_rows = num_out_cols;
|
|
num_in_cols = num_out_rows;
|
|
} else {
|
|
num_in_rows = num_out_rows;
|
|
num_in_cols = num_out_cols;
|
|
}
|
|
|
|
/* align input width/height */
|
|
w_align = ilog2(tile_width_align(infmt) * num_in_cols);
|
|
h_align = ilog2(tile_height_align(IMAGE_CONVERT_IN, rot_mode) *
|
|
num_in_rows);
|
|
in->pix.width = clamp_align(in->pix.width, MIN_W, MAX_W, w_align);
|
|
in->pix.height = clamp_align(in->pix.height, MIN_H, MAX_H, h_align);
|
|
|
|
/* align output width/height */
|
|
w_align = ilog2(tile_width_align(outfmt) * num_out_cols);
|
|
h_align = ilog2(tile_height_align(IMAGE_CONVERT_OUT, rot_mode) *
|
|
num_out_rows);
|
|
out->pix.width = clamp_align(out->pix.width, MIN_W, MAX_W, w_align);
|
|
out->pix.height = clamp_align(out->pix.height, MIN_H, MAX_H, h_align);
|
|
|
|
/* set input/output strides and image sizes */
|
|
in->pix.bytesperline = (in->pix.width * infmt->bpp) >> 3;
|
|
in->pix.sizeimage = in->pix.height * in->pix.bytesperline;
|
|
out->pix.bytesperline = (out->pix.width * outfmt->bpp) >> 3;
|
|
out->pix.sizeimage = out->pix.height * out->pix.bytesperline;
|
|
}
|
|
EXPORT_SYMBOL_GPL(ipu_image_convert_adjust);
|
|
|
|
/*
|
|
* this is used by ipu_image_convert_prepare() to verify set input and
|
|
* output images are valid before starting the conversion. Clients can
|
|
* also call it before calling ipu_image_convert_prepare().
|
|
*/
|
|
int ipu_image_convert_verify(struct ipu_image *in, struct ipu_image *out,
|
|
enum ipu_rotate_mode rot_mode)
|
|
{
|
|
struct ipu_image testin, testout;
|
|
|
|
testin = *in;
|
|
testout = *out;
|
|
|
|
ipu_image_convert_adjust(&testin, &testout, rot_mode);
|
|
|
|
if (testin.pix.width != in->pix.width ||
|
|
testin.pix.height != in->pix.height ||
|
|
testout.pix.width != out->pix.width ||
|
|
testout.pix.height != out->pix.height)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(ipu_image_convert_verify);
|
|
|
|
/*
|
|
* Call ipu_image_convert_prepare() to prepare for the conversion of
|
|
* given images and rotation mode. Returns a new conversion context.
|
|
*/
|
|
struct ipu_image_convert_ctx *
|
|
ipu_image_convert_prepare(struct ipu_soc *ipu, enum ipu_ic_task ic_task,
|
|
struct ipu_image *in, struct ipu_image *out,
|
|
enum ipu_rotate_mode rot_mode,
|
|
ipu_image_convert_cb_t complete,
|
|
void *complete_context)
|
|
{
|
|
struct ipu_image_convert_priv *priv = ipu->image_convert_priv;
|
|
struct ipu_image_convert_image *s_image, *d_image;
|
|
struct ipu_image_convert_chan *chan;
|
|
struct ipu_image_convert_ctx *ctx;
|
|
unsigned long flags;
|
|
bool get_res;
|
|
int ret;
|
|
|
|
if (!in || !out || !complete ||
|
|
(ic_task != IC_TASK_VIEWFINDER &&
|
|
ic_task != IC_TASK_POST_PROCESSOR))
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
/* verify the in/out images before continuing */
|
|
ret = ipu_image_convert_verify(in, out, rot_mode);
|
|
if (ret) {
|
|
dev_err(priv->ipu->dev, "%s: in/out formats invalid\n",
|
|
__func__);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
chan = &priv->chan[ic_task];
|
|
|
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
|
|
if (!ctx)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
dev_dbg(priv->ipu->dev, "%s: task %u: ctx %p\n", __func__,
|
|
chan->ic_task, ctx);
|
|
|
|
ctx->chan = chan;
|
|
init_completion(&ctx->aborted);
|
|
|
|
s_image = &ctx->in;
|
|
d_image = &ctx->out;
|
|
|
|
/* set tiling and rotation */
|
|
d_image->num_rows = num_stripes(out->pix.height);
|
|
d_image->num_cols = num_stripes(out->pix.width);
|
|
if (ipu_rot_mode_is_irt(rot_mode)) {
|
|
s_image->num_rows = d_image->num_cols;
|
|
s_image->num_cols = d_image->num_rows;
|
|
} else {
|
|
s_image->num_rows = d_image->num_rows;
|
|
s_image->num_cols = d_image->num_cols;
|
|
}
|
|
|
|
ctx->num_tiles = d_image->num_cols * d_image->num_rows;
|
|
ctx->rot_mode = rot_mode;
|
|
|
|
ret = fill_image(ctx, s_image, in, IMAGE_CONVERT_IN);
|
|
if (ret)
|
|
goto out_free;
|
|
ret = fill_image(ctx, d_image, out, IMAGE_CONVERT_OUT);
|
|
if (ret)
|
|
goto out_free;
|
|
|
|
calc_out_tile_map(ctx);
|
|
|
|
dump_format(ctx, s_image);
|
|
dump_format(ctx, d_image);
|
|
|
|
ctx->complete = complete;
|
|
ctx->complete_context = complete_context;
|
|
|
|
/*
|
|
* Can we use double-buffering for this operation? If there is
|
|
* only one tile (the whole image can be converted in a single
|
|
* operation) there's no point in using double-buffering. Also,
|
|
* the IPU's IDMAC channels allow only a single U and V plane
|
|
* offset shared between both buffers, but these offsets change
|
|
* for every tile, and therefore would have to be updated for
|
|
* each buffer which is not possible. So double-buffering is
|
|
* impossible when either the source or destination images are
|
|
* a planar format (YUV420, YUV422P, etc.).
|
|
*/
|
|
ctx->double_buffering = (ctx->num_tiles > 1 &&
|
|
!s_image->fmt->planar &&
|
|
!d_image->fmt->planar);
|
|
|
|
if (ipu_rot_mode_is_irt(ctx->rot_mode)) {
|
|
ret = alloc_dma_buf(priv, &ctx->rot_intermediate[0],
|
|
d_image->tile[0].size);
|
|
if (ret)
|
|
goto out_free;
|
|
if (ctx->double_buffering) {
|
|
ret = alloc_dma_buf(priv,
|
|
&ctx->rot_intermediate[1],
|
|
d_image->tile[0].size);
|
|
if (ret)
|
|
goto out_free_dmabuf0;
|
|
}
|
|
}
|
|
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
|
|
get_res = list_empty(&chan->ctx_list);
|
|
|
|
list_add_tail(&ctx->list, &chan->ctx_list);
|
|
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
|
|
if (get_res) {
|
|
ret = get_ipu_resources(chan);
|
|
if (ret)
|
|
goto out_free_dmabuf1;
|
|
}
|
|
|
|
return ctx;
|
|
|
|
out_free_dmabuf1:
|
|
free_dma_buf(priv, &ctx->rot_intermediate[1]);
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
list_del(&ctx->list);
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
out_free_dmabuf0:
|
|
free_dma_buf(priv, &ctx->rot_intermediate[0]);
|
|
out_free:
|
|
kfree(ctx);
|
|
return ERR_PTR(ret);
|
|
}
|
|
EXPORT_SYMBOL_GPL(ipu_image_convert_prepare);
|
|
|
|
/*
|
|
* Carry out a single image conversion run. Only the physaddr's of the input
|
|
* and output image buffers are needed. The conversion context must have
|
|
* been created previously with ipu_image_convert_prepare().
|
|
*/
|
|
int ipu_image_convert_queue(struct ipu_image_convert_run *run)
|
|
{
|
|
struct ipu_image_convert_chan *chan;
|
|
struct ipu_image_convert_priv *priv;
|
|
struct ipu_image_convert_ctx *ctx;
|
|
unsigned long flags;
|
|
int ret = 0;
|
|
|
|
if (!run || !run->ctx || !run->in_phys || !run->out_phys)
|
|
return -EINVAL;
|
|
|
|
ctx = run->ctx;
|
|
chan = ctx->chan;
|
|
priv = chan->priv;
|
|
|
|
dev_dbg(priv->ipu->dev, "%s: task %u: ctx %p run %p\n", __func__,
|
|
chan->ic_task, ctx, run);
|
|
|
|
INIT_LIST_HEAD(&run->list);
|
|
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
|
|
if (ctx->aborting) {
|
|
ret = -EIO;
|
|
goto unlock;
|
|
}
|
|
|
|
list_add_tail(&run->list, &chan->pending_q);
|
|
|
|
if (!chan->current_run) {
|
|
ret = do_run(run);
|
|
if (ret)
|
|
chan->current_run = NULL;
|
|
}
|
|
unlock:
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(ipu_image_convert_queue);
|
|
|
|
/* Abort any active or pending conversions for this context */
|
|
void ipu_image_convert_abort(struct ipu_image_convert_ctx *ctx)
|
|
{
|
|
struct ipu_image_convert_chan *chan = ctx->chan;
|
|
struct ipu_image_convert_priv *priv = chan->priv;
|
|
struct ipu_image_convert_run *run, *active_run, *tmp;
|
|
unsigned long flags;
|
|
int run_count, ret;
|
|
bool need_abort;
|
|
|
|
reinit_completion(&ctx->aborted);
|
|
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
|
|
/* move all remaining pending runs in this context to done_q */
|
|
list_for_each_entry_safe(run, tmp, &chan->pending_q, list) {
|
|
if (run->ctx != ctx)
|
|
continue;
|
|
run->status = -EIO;
|
|
list_move_tail(&run->list, &chan->done_q);
|
|
}
|
|
|
|
run_count = get_run_count(ctx, &chan->done_q);
|
|
active_run = (chan->current_run && chan->current_run->ctx == ctx) ?
|
|
chan->current_run : NULL;
|
|
|
|
need_abort = (run_count || active_run);
|
|
|
|
ctx->aborting = need_abort;
|
|
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
|
|
if (!need_abort) {
|
|
dev_dbg(priv->ipu->dev,
|
|
"%s: task %u: no abort needed for ctx %p\n",
|
|
__func__, chan->ic_task, ctx);
|
|
return;
|
|
}
|
|
|
|
dev_dbg(priv->ipu->dev,
|
|
"%s: task %u: wait for completion: %d runs, active run %p\n",
|
|
__func__, chan->ic_task, run_count, active_run);
|
|
|
|
ret = wait_for_completion_timeout(&ctx->aborted,
|
|
msecs_to_jiffies(10000));
|
|
if (ret == 0) {
|
|
dev_warn(priv->ipu->dev, "%s: timeout\n", __func__);
|
|
force_abort(ctx);
|
|
}
|
|
|
|
ctx->aborting = false;
|
|
}
|
|
EXPORT_SYMBOL_GPL(ipu_image_convert_abort);
|
|
|
|
/* Unprepare image conversion context */
|
|
void ipu_image_convert_unprepare(struct ipu_image_convert_ctx *ctx)
|
|
{
|
|
struct ipu_image_convert_chan *chan = ctx->chan;
|
|
struct ipu_image_convert_priv *priv = chan->priv;
|
|
unsigned long flags;
|
|
bool put_res;
|
|
|
|
/* make sure no runs are hanging around */
|
|
ipu_image_convert_abort(ctx);
|
|
|
|
dev_dbg(priv->ipu->dev, "%s: task %u: removing ctx %p\n", __func__,
|
|
chan->ic_task, ctx);
|
|
|
|
spin_lock_irqsave(&chan->irqlock, flags);
|
|
|
|
list_del(&ctx->list);
|
|
|
|
put_res = list_empty(&chan->ctx_list);
|
|
|
|
spin_unlock_irqrestore(&chan->irqlock, flags);
|
|
|
|
if (put_res)
|
|
release_ipu_resources(chan);
|
|
|
|
free_dma_buf(priv, &ctx->rot_intermediate[1]);
|
|
free_dma_buf(priv, &ctx->rot_intermediate[0]);
|
|
|
|
kfree(ctx);
|
|
}
|
|
EXPORT_SYMBOL_GPL(ipu_image_convert_unprepare);
|
|
|
|
/*
|
|
* "Canned" asynchronous single image conversion. Allocates and returns
|
|
* a new conversion run. On successful return the caller must free the
|
|
* run and call ipu_image_convert_unprepare() after conversion completes.
|
|
*/
|
|
struct ipu_image_convert_run *
|
|
ipu_image_convert(struct ipu_soc *ipu, enum ipu_ic_task ic_task,
|
|
struct ipu_image *in, struct ipu_image *out,
|
|
enum ipu_rotate_mode rot_mode,
|
|
ipu_image_convert_cb_t complete,
|
|
void *complete_context)
|
|
{
|
|
struct ipu_image_convert_ctx *ctx;
|
|
struct ipu_image_convert_run *run;
|
|
int ret;
|
|
|
|
ctx = ipu_image_convert_prepare(ipu, ic_task, in, out, rot_mode,
|
|
complete, complete_context);
|
|
if (IS_ERR(ctx))
|
|
return ERR_CAST(ctx);
|
|
|
|
run = kzalloc(sizeof(*run), GFP_KERNEL);
|
|
if (!run) {
|
|
ipu_image_convert_unprepare(ctx);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
run->ctx = ctx;
|
|
run->in_phys = in->phys0;
|
|
run->out_phys = out->phys0;
|
|
|
|
ret = ipu_image_convert_queue(run);
|
|
if (ret) {
|
|
ipu_image_convert_unprepare(ctx);
|
|
kfree(run);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
return run;
|
|
}
|
|
EXPORT_SYMBOL_GPL(ipu_image_convert);
|
|
|
|
/* "Canned" synchronous single image conversion */
|
|
static void image_convert_sync_complete(struct ipu_image_convert_run *run,
|
|
void *data)
|
|
{
|
|
struct completion *comp = data;
|
|
|
|
complete(comp);
|
|
}
|
|
|
|
int ipu_image_convert_sync(struct ipu_soc *ipu, enum ipu_ic_task ic_task,
|
|
struct ipu_image *in, struct ipu_image *out,
|
|
enum ipu_rotate_mode rot_mode)
|
|
{
|
|
struct ipu_image_convert_run *run;
|
|
struct completion comp;
|
|
int ret;
|
|
|
|
init_completion(&comp);
|
|
|
|
run = ipu_image_convert(ipu, ic_task, in, out, rot_mode,
|
|
image_convert_sync_complete, &comp);
|
|
if (IS_ERR(run))
|
|
return PTR_ERR(run);
|
|
|
|
ret = wait_for_completion_timeout(&comp, msecs_to_jiffies(10000));
|
|
ret = (ret == 0) ? -ETIMEDOUT : 0;
|
|
|
|
ipu_image_convert_unprepare(run->ctx);
|
|
kfree(run);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(ipu_image_convert_sync);
|
|
|
|
int ipu_image_convert_init(struct ipu_soc *ipu, struct device *dev)
|
|
{
|
|
struct ipu_image_convert_priv *priv;
|
|
int i;
|
|
|
|
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
ipu->image_convert_priv = priv;
|
|
priv->ipu = ipu;
|
|
|
|
for (i = 0; i < IC_NUM_TASKS; i++) {
|
|
struct ipu_image_convert_chan *chan = &priv->chan[i];
|
|
|
|
chan->ic_task = i;
|
|
chan->priv = priv;
|
|
chan->dma_ch = &image_convert_dma_chan[i];
|
|
chan->out_eof_irq = -1;
|
|
chan->rot_out_eof_irq = -1;
|
|
|
|
spin_lock_init(&chan->irqlock);
|
|
INIT_LIST_HEAD(&chan->ctx_list);
|
|
INIT_LIST_HEAD(&chan->pending_q);
|
|
INIT_LIST_HEAD(&chan->done_q);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ipu_image_convert_exit(struct ipu_soc *ipu)
|
|
{
|
|
}
|