linux/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/vmem.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Support for Intel Camera Imaging ISP subsystem.
 * Copyright (c) 2010 - 2016, Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */

#include "isp.h"
#include "vmem.h"
#include "vmem_local.h"

#if !defined(HRT_MEMORY_ACCESS)
#include "ia_css_device_access.h"
#endif
#include "assert_support.h"

hive_uedge;
hive_wide;

/* Copied from SDK: sim_semantics.c */

/* subword bits move like this:         MSB[____xxxx____]LSB -> MSB[00000000xxxx]LSB */
static inline hive_uedge
subword(hive_uedge w, unsigned int start, unsigned int end)
{ … }

/* inverse subword bits move like this: MSB[xxxx____xxxx]LSB -> MSB[xxxx0000xxxx]LSB */
static inline hive_uedge
inv_subword(hive_uedge w, unsigned int start, unsigned int end)
{ … }

#define uedge_bits …
#define move_lower_bits(target, target_bit, src, src_bit) …
#define move_upper_bits(target, target_bit, src, src_bit) …
#define move_word(target, target_bit, src) …

static void
move_subword(
    hive_uedge *target,
    unsigned int target_bit,
    hive_uedge src,
    unsigned int src_start,
    unsigned int src_end)
{ … }

static void
hive_sim_wide_unpack(
    hive_wide vector,
    hive_wide elem,
    hive_uint elem_bits,
    hive_uint index)
{ … }

static void
hive_sim_wide_pack(
    hive_wide vector,
    hive_wide elem,
    hive_uint elem_bits,
    hive_uint index)
{ … }

static void load_vector(
    const isp_ID_t		ID,
    t_vmem_elem		*to,
    const t_vmem_elem	*from)
{ … }

static void store_vector(
    const isp_ID_t		ID,
    t_vmem_elem		*to,
    const t_vmem_elem	*from)
{ … }

void isp_vmem_load(
    const isp_ID_t		ID,
    const t_vmem_elem	*from,
    t_vmem_elem		*to,
    unsigned int elems) /* In t_vmem_elem */
{ … }

void isp_vmem_store(
    const isp_ID_t		ID,
    t_vmem_elem		*to,
    const t_vmem_elem	*from,
    unsigned int elems) /* In t_vmem_elem */
{ … }

void isp_vmem_2d_load(
    const isp_ID_t		ID,
    const t_vmem_elem	*from,
    t_vmem_elem		*to,
    unsigned int height,
    unsigned int width,
    unsigned int stride_to,  /* In t_vmem_elem */

    unsigned stride_from /* In t_vmem_elem */)
{ … }

void isp_vmem_2d_store(
    const isp_ID_t		ID,
    t_vmem_elem		*to,
    const t_vmem_elem	*from,
    unsigned int height,
    unsigned int width,
    unsigned int stride_to,  /* In t_vmem_elem */

    unsigned stride_from /* In t_vmem_elem */)
{ … }