618 lines
16 KiB
C
618 lines
16 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2016 MediaTek Inc.
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* Author: Jungchang Tsao <jungchang.tsao@mediatek.com>
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* PC Chen <pc.chen@mediatek.com>
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*/
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#include <linux/slab.h>
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#include "../vdec_drv_if.h"
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#include "../mtk_vcodec_util.h"
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#include "../mtk_vcodec_dec.h"
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#include "../mtk_vcodec_intr.h"
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#include "../vdec_vpu_if.h"
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#include "../vdec_drv_base.h"
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/* Decoding picture buffer size (3 reference frames plus current frame) */
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#define VP8_DPB_SIZE 4
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/* HW working buffer size (bytes) */
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#define VP8_WORKING_BUF_SZ (45 * 4096)
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/* HW control register address */
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#define VP8_SEGID_DRAM_ADDR 0x3c
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#define VP8_HW_VLD_ADDR 0x93C
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#define VP8_HW_VLD_VALUE 0x940
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#define VP8_BSASET 0x100
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#define VP8_BSDSET 0x104
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#define VP8_RW_CKEN_SET 0x0
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#define VP8_RW_DCM_CON 0x18
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#define VP8_WO_VLD_SRST 0x108
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#define VP8_RW_MISC_SYS_SEL 0x84
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#define VP8_RW_MISC_SPEC_CON 0xC8
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#define VP8_WO_VLD_SRST 0x108
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#define VP8_RW_VP8_CTRL 0xA4
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#define VP8_RW_MISC_DCM_CON 0xEC
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#define VP8_RW_MISC_SRST 0xF4
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#define VP8_RW_MISC_FUNC_CON 0xCC
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#define VP8_MAX_FRM_BUF_NUM 5
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#define VP8_MAX_FRM_BUF_NODE_NUM (VP8_MAX_FRM_BUF_NUM * 2)
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/* required buffer size (bytes) to store decode information */
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#define VP8_HW_SEGMENT_DATA_SZ 272
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#define VP8_HW_SEGMENT_UINT 4
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#define VP8_DEC_TABLE_PROC_LOOP 96
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#define VP8_DEC_TABLE_UNIT 3
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#define VP8_DEC_TABLE_SZ 300
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#define VP8_DEC_TABLE_OFFSET 2
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#define VP8_DEC_TABLE_RW_UNIT 4
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/**
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* struct vdec_vp8_dec_info - decode misc information
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* @working_buf_dma : working buffer dma address
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* @prev_y_dma : previous decoded frame buffer Y plane address
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* @cur_y_fb_dma : current plane Y frame buffer dma address
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* @cur_c_fb_dma : current plane C frame buffer dma address
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* @bs_dma : bitstream dma address
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* @bs_sz : bitstream size
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* @resolution_changed: resolution change flag 1 - changed, 0 - not change
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* @show_frame : display this frame or not
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* @wait_key_frame : wait key frame coming
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*/
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struct vdec_vp8_dec_info {
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uint64_t working_buf_dma;
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uint64_t prev_y_dma;
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uint64_t cur_y_fb_dma;
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uint64_t cur_c_fb_dma;
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uint64_t bs_dma;
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uint32_t bs_sz;
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uint32_t resolution_changed;
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uint32_t show_frame;
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uint32_t wait_key_frame;
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};
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/**
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* struct vdec_vp8_vsi - VPU shared information
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* @dec : decoding information
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* @pic : picture information
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* @dec_table : decoder coefficient table
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* @segment_buf : segmentation buffer
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* @load_data : flag to indicate reload decode data
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*/
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struct vdec_vp8_vsi {
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struct vdec_vp8_dec_info dec;
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struct vdec_pic_info pic;
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uint32_t dec_table[VP8_DEC_TABLE_SZ];
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uint32_t segment_buf[VP8_HW_SEGMENT_DATA_SZ][VP8_HW_SEGMENT_UINT];
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uint32_t load_data;
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};
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/**
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* struct vdec_vp8_hw_reg_base - HW register base
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* @sys : base address for sys
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* @misc : base address for misc
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* @ld : base address for ld
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* @top : base address for top
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* @cm : base address for cm
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* @hwd : base address for hwd
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* @hwb : base address for hwb
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*/
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struct vdec_vp8_hw_reg_base {
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void __iomem *sys;
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void __iomem *misc;
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void __iomem *ld;
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void __iomem *top;
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void __iomem *cm;
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void __iomem *hwd;
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void __iomem *hwb;
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};
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/**
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* struct vdec_vp8_vpu_inst - VPU instance for VP8 decode
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* @wq_hd : Wait queue to wait VPU message ack
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* @signaled : 1 - Host has received ack message from VPU, 0 - not receive
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* @failure : VPU execution result status 0 - success, others - fail
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* @inst_addr : VPU decoder instance address
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*/
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struct vdec_vp8_vpu_inst {
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wait_queue_head_t wq_hd;
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int signaled;
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int failure;
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uint32_t inst_addr;
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};
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/* frame buffer (fb) list
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* [available_fb_node_list] - decode fb are initialized to 0 and populated in
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* [fb_use_list] - fb is set after decode and is moved to this list
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* [fb_free_list] - fb is not needed for reference will be moved from
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* [fb_use_list] to [fb_free_list] and
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* once user remove fb from [fb_free_list],
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* it is circulated back to [available_fb_node_list]
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* [fb_disp_list] - fb is set after decode and is moved to this list
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* once user remove fb from [fb_disp_list] it is
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* circulated back to [available_fb_node_list]
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*/
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/**
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* struct vdec_vp8_inst - VP8 decoder instance
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* @cur_fb : current frame buffer
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* @dec_fb : decode frame buffer node
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* @available_fb_node_list : list to store available frame buffer node
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* @fb_use_list : list to store frame buffer in use
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* @fb_free_list : list to store free frame buffer
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* @fb_disp_list : list to store display ready frame buffer
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* @working_buf : HW decoder working buffer
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* @reg_base : HW register base address
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* @frm_cnt : decode frame count
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* @ctx : V4L2 context
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* @vpu : VPU instance for decoder
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* @vsi : VPU share information
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*/
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struct vdec_vp8_inst {
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struct vdec_fb *cur_fb;
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struct vdec_fb_node dec_fb[VP8_MAX_FRM_BUF_NODE_NUM];
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struct list_head available_fb_node_list;
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struct list_head fb_use_list;
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struct list_head fb_free_list;
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struct list_head fb_disp_list;
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struct mtk_vcodec_mem working_buf;
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struct vdec_vp8_hw_reg_base reg_base;
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unsigned int frm_cnt;
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struct mtk_vcodec_ctx *ctx;
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struct vdec_vpu_inst vpu;
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struct vdec_vp8_vsi *vsi;
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};
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static void get_hw_reg_base(struct vdec_vp8_inst *inst)
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{
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inst->reg_base.top = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_TOP);
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inst->reg_base.cm = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_CM);
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inst->reg_base.hwd = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_HWD);
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inst->reg_base.sys = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_SYS);
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inst->reg_base.misc = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_MISC);
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inst->reg_base.ld = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_LD);
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inst->reg_base.hwb = mtk_vcodec_get_reg_addr(inst->ctx, VDEC_HWB);
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}
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static void write_hw_segmentation_data(struct vdec_vp8_inst *inst)
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{
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int i, j;
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u32 seg_id_addr;
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u32 val;
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void __iomem *cm = inst->reg_base.cm;
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struct vdec_vp8_vsi *vsi = inst->vsi;
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seg_id_addr = readl(inst->reg_base.top + VP8_SEGID_DRAM_ADDR) >> 4;
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for (i = 0; i < ARRAY_SIZE(vsi->segment_buf); i++) {
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for (j = ARRAY_SIZE(vsi->segment_buf[i]) - 1; j >= 0; j--) {
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val = (1 << 16) + ((seg_id_addr + i) << 2) + j;
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writel(val, cm + VP8_HW_VLD_ADDR);
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val = vsi->segment_buf[i][j];
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writel(val, cm + VP8_HW_VLD_VALUE);
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}
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}
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}
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static void read_hw_segmentation_data(struct vdec_vp8_inst *inst)
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{
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int i, j;
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u32 seg_id_addr;
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u32 val;
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void __iomem *cm = inst->reg_base.cm;
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struct vdec_vp8_vsi *vsi = inst->vsi;
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seg_id_addr = readl(inst->reg_base.top + VP8_SEGID_DRAM_ADDR) >> 4;
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for (i = 0; i < ARRAY_SIZE(vsi->segment_buf); i++) {
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for (j = ARRAY_SIZE(vsi->segment_buf[i]) - 1; j >= 0; j--) {
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val = ((seg_id_addr + i) << 2) + j;
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writel(val, cm + VP8_HW_VLD_ADDR);
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val = readl(cm + VP8_HW_VLD_VALUE);
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vsi->segment_buf[i][j] = val;
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}
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}
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}
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/* reset HW and enable HW read/write data function */
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static void enable_hw_rw_function(struct vdec_vp8_inst *inst)
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{
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u32 val = 0;
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void __iomem *sys = inst->reg_base.sys;
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void __iomem *misc = inst->reg_base.misc;
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void __iomem *ld = inst->reg_base.ld;
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void __iomem *hwb = inst->reg_base.hwb;
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void __iomem *hwd = inst->reg_base.hwd;
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writel(0x1, sys + VP8_RW_CKEN_SET);
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writel(0x101, ld + VP8_WO_VLD_SRST);
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writel(0x101, hwb + VP8_WO_VLD_SRST);
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writel(1, sys);
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val = readl(misc + VP8_RW_MISC_SRST);
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writel((val & 0xFFFFFFFE), misc + VP8_RW_MISC_SRST);
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writel(0x1, misc + VP8_RW_MISC_SYS_SEL);
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writel(0x17F, misc + VP8_RW_MISC_SPEC_CON);
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writel(0x71201100, misc + VP8_RW_MISC_FUNC_CON);
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writel(0x0, ld + VP8_WO_VLD_SRST);
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writel(0x0, hwb + VP8_WO_VLD_SRST);
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writel(0x1, sys + VP8_RW_DCM_CON);
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writel(0x1, misc + VP8_RW_MISC_DCM_CON);
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writel(0x1, hwd + VP8_RW_VP8_CTRL);
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}
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static void store_dec_table(struct vdec_vp8_inst *inst)
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{
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int i, j;
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u32 addr = 0, val = 0;
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void __iomem *hwd = inst->reg_base.hwd;
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u32 *p = &inst->vsi->dec_table[VP8_DEC_TABLE_OFFSET];
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for (i = 0; i < VP8_DEC_TABLE_PROC_LOOP; i++) {
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writel(addr, hwd + VP8_BSASET);
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for (j = 0; j < VP8_DEC_TABLE_UNIT ; j++) {
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val = *p++;
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writel(val, hwd + VP8_BSDSET);
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}
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addr += VP8_DEC_TABLE_RW_UNIT;
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}
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}
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static void load_dec_table(struct vdec_vp8_inst *inst)
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{
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int i;
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u32 addr = 0;
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u32 *p = &inst->vsi->dec_table[VP8_DEC_TABLE_OFFSET];
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void __iomem *hwd = inst->reg_base.hwd;
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for (i = 0; i < VP8_DEC_TABLE_PROC_LOOP; i++) {
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writel(addr, hwd + VP8_BSASET);
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/* read total 11 bytes */
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*p++ = readl(hwd + VP8_BSDSET);
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*p++ = readl(hwd + VP8_BSDSET);
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*p++ = readl(hwd + VP8_BSDSET) & 0xFFFFFF;
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addr += VP8_DEC_TABLE_RW_UNIT;
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}
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}
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static void get_pic_info(struct vdec_vp8_inst *inst, struct vdec_pic_info *pic)
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{
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*pic = inst->vsi->pic;
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mtk_vcodec_debug(inst, "pic(%d, %d), buf(%d, %d)",
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pic->pic_w, pic->pic_h, pic->buf_w, pic->buf_h);
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mtk_vcodec_debug(inst, "fb size: Y(%d), C(%d)",
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pic->fb_sz[0], pic->fb_sz[1]);
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}
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static void vp8_dec_finish(struct vdec_vp8_inst *inst)
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{
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struct vdec_fb_node *node;
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uint64_t prev_y_dma = inst->vsi->dec.prev_y_dma;
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mtk_vcodec_debug(inst, "prev fb base dma=%llx", prev_y_dma);
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/* put last decode ok frame to fb_free_list */
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if (prev_y_dma != 0) {
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list_for_each_entry(node, &inst->fb_use_list, list) {
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struct vdec_fb *fb = (struct vdec_fb *)node->fb;
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if (prev_y_dma == (uint64_t)fb->base_y.dma_addr) {
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list_move_tail(&node->list,
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&inst->fb_free_list);
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break;
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}
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}
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}
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/* available_fb_node_list -> fb_use_list */
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node = list_first_entry(&inst->available_fb_node_list,
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struct vdec_fb_node, list);
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node->fb = inst->cur_fb;
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list_move_tail(&node->list, &inst->fb_use_list);
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/* available_fb_node_list -> fb_disp_list */
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if (inst->vsi->dec.show_frame) {
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node = list_first_entry(&inst->available_fb_node_list,
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struct vdec_fb_node, list);
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node->fb = inst->cur_fb;
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list_move_tail(&node->list, &inst->fb_disp_list);
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}
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}
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static void move_fb_list_use_to_free(struct vdec_vp8_inst *inst)
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{
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struct vdec_fb_node *node, *tmp;
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list_for_each_entry_safe(node, tmp, &inst->fb_use_list, list)
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list_move_tail(&node->list, &inst->fb_free_list);
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}
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static void init_list(struct vdec_vp8_inst *inst)
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{
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int i;
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INIT_LIST_HEAD(&inst->available_fb_node_list);
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INIT_LIST_HEAD(&inst->fb_use_list);
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INIT_LIST_HEAD(&inst->fb_free_list);
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INIT_LIST_HEAD(&inst->fb_disp_list);
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for (i = 0; i < ARRAY_SIZE(inst->dec_fb); i++) {
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INIT_LIST_HEAD(&inst->dec_fb[i].list);
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inst->dec_fb[i].fb = NULL;
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list_add_tail(&inst->dec_fb[i].list,
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&inst->available_fb_node_list);
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}
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}
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static void add_fb_to_free_list(struct vdec_vp8_inst *inst, void *fb)
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{
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struct vdec_fb_node *node;
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if (fb) {
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node = list_first_entry(&inst->available_fb_node_list,
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struct vdec_fb_node, list);
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node->fb = fb;
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list_move_tail(&node->list, &inst->fb_free_list);
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}
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}
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static int alloc_working_buf(struct vdec_vp8_inst *inst)
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{
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int err;
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struct mtk_vcodec_mem *mem = &inst->working_buf;
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mem->size = VP8_WORKING_BUF_SZ;
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err = mtk_vcodec_mem_alloc(inst->ctx, mem);
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if (err) {
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mtk_vcodec_err(inst, "Cannot allocate working buffer");
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return err;
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}
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inst->vsi->dec.working_buf_dma = (uint64_t)mem->dma_addr;
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return 0;
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}
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static void free_working_buf(struct vdec_vp8_inst *inst)
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{
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struct mtk_vcodec_mem *mem = &inst->working_buf;
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if (mem->va)
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mtk_vcodec_mem_free(inst->ctx, mem);
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inst->vsi->dec.working_buf_dma = 0;
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}
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static int vdec_vp8_init(struct mtk_vcodec_ctx *ctx)
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{
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struct vdec_vp8_inst *inst;
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int err;
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inst = kzalloc(sizeof(*inst), GFP_KERNEL);
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if (!inst)
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return -ENOMEM;
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inst->ctx = ctx;
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inst->vpu.id = IPI_VDEC_VP8;
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inst->vpu.dev = ctx->dev->vpu_plat_dev;
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inst->vpu.ctx = ctx;
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err = vpu_dec_init(&inst->vpu);
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if (err) {
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mtk_vcodec_err(inst, "vdec_vp8 init err=%d", err);
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goto error_free_inst;
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}
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inst->vsi = (struct vdec_vp8_vsi *)inst->vpu.vsi;
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init_list(inst);
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err = alloc_working_buf(inst);
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if (err)
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goto error_deinit;
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get_hw_reg_base(inst);
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mtk_vcodec_debug(inst, "VP8 Instance >> %p", inst);
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ctx->drv_handle = inst;
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return 0;
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error_deinit:
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vpu_dec_deinit(&inst->vpu);
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error_free_inst:
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kfree(inst);
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return err;
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}
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static int vdec_vp8_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
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struct vdec_fb *fb, bool *res_chg)
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{
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struct vdec_vp8_inst *inst = (struct vdec_vp8_inst *)h_vdec;
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struct vdec_vp8_dec_info *dec = &inst->vsi->dec;
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struct vdec_vpu_inst *vpu = &inst->vpu;
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unsigned char *bs_va;
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unsigned int data;
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int err = 0;
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uint64_t y_fb_dma;
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uint64_t c_fb_dma;
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/* bs NULL means flush decoder */
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if (bs == NULL) {
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move_fb_list_use_to_free(inst);
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return vpu_dec_reset(vpu);
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}
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y_fb_dma = fb ? (u64)fb->base_y.dma_addr : 0;
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c_fb_dma = fb ? (u64)fb->base_c.dma_addr : 0;
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mtk_vcodec_debug(inst, "+ [%d] FB y_dma=%llx c_dma=%llx fb=%p",
|
|
inst->frm_cnt, y_fb_dma, c_fb_dma, fb);
|
|
|
|
inst->cur_fb = fb;
|
|
dec->bs_dma = (unsigned long)bs->dma_addr;
|
|
dec->bs_sz = bs->size;
|
|
dec->cur_y_fb_dma = y_fb_dma;
|
|
dec->cur_c_fb_dma = c_fb_dma;
|
|
|
|
mtk_vcodec_debug(inst, "\n + FRAME[%d] +\n", inst->frm_cnt);
|
|
|
|
write_hw_segmentation_data(inst);
|
|
enable_hw_rw_function(inst);
|
|
store_dec_table(inst);
|
|
|
|
bs_va = (unsigned char *)bs->va;
|
|
|
|
/* retrieve width/hight and scale info from header */
|
|
data = (*(bs_va + 9) << 24) | (*(bs_va + 8) << 16) |
|
|
(*(bs_va + 7) << 8) | *(bs_va + 6);
|
|
err = vpu_dec_start(vpu, &data, 1);
|
|
if (err) {
|
|
add_fb_to_free_list(inst, fb);
|
|
if (dec->wait_key_frame) {
|
|
mtk_vcodec_debug(inst, "wait key frame !");
|
|
return 0;
|
|
}
|
|
|
|
goto error;
|
|
}
|
|
|
|
if (dec->resolution_changed) {
|
|
mtk_vcodec_debug(inst, "- resolution_changed -");
|
|
*res_chg = true;
|
|
add_fb_to_free_list(inst, fb);
|
|
return 0;
|
|
}
|
|
|
|
/* wait decoder done interrupt */
|
|
mtk_vcodec_wait_for_done_ctx(inst->ctx, MTK_INST_IRQ_RECEIVED,
|
|
WAIT_INTR_TIMEOUT_MS);
|
|
|
|
if (inst->vsi->load_data)
|
|
load_dec_table(inst);
|
|
|
|
vp8_dec_finish(inst);
|
|
read_hw_segmentation_data(inst);
|
|
|
|
err = vpu_dec_end(vpu);
|
|
if (err)
|
|
goto error;
|
|
|
|
mtk_vcodec_debug(inst, "\n - FRAME[%d] - show=%d\n", inst->frm_cnt,
|
|
dec->show_frame);
|
|
inst->frm_cnt++;
|
|
*res_chg = false;
|
|
return 0;
|
|
|
|
error:
|
|
mtk_vcodec_err(inst, "\n - FRAME[%d] - err=%d\n", inst->frm_cnt, err);
|
|
return err;
|
|
}
|
|
|
|
static void get_disp_fb(struct vdec_vp8_inst *inst, struct vdec_fb **out_fb)
|
|
{
|
|
struct vdec_fb_node *node;
|
|
struct vdec_fb *fb;
|
|
|
|
node = list_first_entry_or_null(&inst->fb_disp_list,
|
|
struct vdec_fb_node, list);
|
|
if (node) {
|
|
list_move_tail(&node->list, &inst->available_fb_node_list);
|
|
fb = (struct vdec_fb *)node->fb;
|
|
fb->status |= FB_ST_DISPLAY;
|
|
mtk_vcodec_debug(inst, "[FB] get disp fb %p st=%d",
|
|
node->fb, fb->status);
|
|
} else {
|
|
fb = NULL;
|
|
mtk_vcodec_debug(inst, "[FB] there is no disp fb");
|
|
}
|
|
|
|
*out_fb = fb;
|
|
}
|
|
|
|
static void get_free_fb(struct vdec_vp8_inst *inst, struct vdec_fb **out_fb)
|
|
{
|
|
struct vdec_fb_node *node;
|
|
struct vdec_fb *fb;
|
|
|
|
node = list_first_entry_or_null(&inst->fb_free_list,
|
|
struct vdec_fb_node, list);
|
|
if (node) {
|
|
list_move_tail(&node->list, &inst->available_fb_node_list);
|
|
fb = (struct vdec_fb *)node->fb;
|
|
fb->status |= FB_ST_FREE;
|
|
mtk_vcodec_debug(inst, "[FB] get free fb %p st=%d",
|
|
node->fb, fb->status);
|
|
} else {
|
|
fb = NULL;
|
|
mtk_vcodec_debug(inst, "[FB] there is no free fb");
|
|
}
|
|
|
|
*out_fb = fb;
|
|
}
|
|
|
|
static void get_crop_info(struct vdec_vp8_inst *inst, struct v4l2_rect *cr)
|
|
{
|
|
cr->left = 0;
|
|
cr->top = 0;
|
|
cr->width = inst->vsi->pic.pic_w;
|
|
cr->height = inst->vsi->pic.pic_h;
|
|
mtk_vcodec_debug(inst, "get crop info l=%d, t=%d, w=%d, h=%d",
|
|
cr->left, cr->top, cr->width, cr->height);
|
|
}
|
|
|
|
static int vdec_vp8_get_param(void *h_vdec, enum vdec_get_param_type type,
|
|
void *out)
|
|
{
|
|
struct vdec_vp8_inst *inst = (struct vdec_vp8_inst *)h_vdec;
|
|
|
|
switch (type) {
|
|
case GET_PARAM_DISP_FRAME_BUFFER:
|
|
get_disp_fb(inst, out);
|
|
break;
|
|
|
|
case GET_PARAM_FREE_FRAME_BUFFER:
|
|
get_free_fb(inst, out);
|
|
break;
|
|
|
|
case GET_PARAM_PIC_INFO:
|
|
get_pic_info(inst, out);
|
|
break;
|
|
|
|
case GET_PARAM_CROP_INFO:
|
|
get_crop_info(inst, out);
|
|
break;
|
|
|
|
case GET_PARAM_DPB_SIZE:
|
|
*((unsigned int *)out) = VP8_DPB_SIZE;
|
|
break;
|
|
|
|
default:
|
|
mtk_vcodec_err(inst, "invalid get parameter type=%d", type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vdec_vp8_deinit(void *h_vdec)
|
|
{
|
|
struct vdec_vp8_inst *inst = (struct vdec_vp8_inst *)h_vdec;
|
|
|
|
mtk_vcodec_debug_enter(inst);
|
|
|
|
vpu_dec_deinit(&inst->vpu);
|
|
free_working_buf(inst);
|
|
kfree(inst);
|
|
}
|
|
|
|
const struct vdec_common_if vdec_vp8_if = {
|
|
.init = vdec_vp8_init,
|
|
.decode = vdec_vp8_decode,
|
|
.get_param = vdec_vp8_get_param,
|
|
.deinit = vdec_vp8_deinit,
|
|
};
|