// SPDX-License-Identifier: GPL-2.0
/*
* Rockchip Video Decoder VP9 backend
*
* Copyright (C) 2019 Collabora, Ltd.
* Boris Brezillon <boris.brezillon@collabora.com>
* Copyright (C) 2021 Collabora, Ltd.
* Andrzej Pietrasiewicz <andrzej.p@collabora.com>
*
* Copyright (C) 2016 Rockchip Electronics Co., Ltd.
* Alpha Lin <Alpha.Lin@rock-chips.com>
*/
/*
* For following the vp9 spec please start reading this driver
* code from rkvdec_vp9_run() followed by rkvdec_vp9_done().
*/
#include <linux/kernel.h>
#include <linux/vmalloc.h>
#include <media/v4l2-mem2mem.h>
#include <media/v4l2-vp9.h>
#include "rkvdec.h"
#include "rkvdec-regs.h"
#define RKVDEC_VP9_PROBE_SIZE 4864
#define RKVDEC_VP9_COUNT_SIZE 13232
#define RKVDEC_VP9_MAX_SEGMAP_SIZE 73728
struct rkvdec_vp9_intra_mode_probs {
u8 y_mode[105];
u8 uv_mode[23];
};
struct rkvdec_vp9_intra_only_frame_probs {
u8 coef_intra[4][2][128];
struct rkvdec_vp9_intra_mode_probs intra_mode[10];
};
struct rkvdec_vp9_inter_frame_probs {
u8 y_mode[4][9];
u8 comp_mode[5];
u8 comp_ref[5];
u8 single_ref[5][2];
u8 inter_mode[7][3];
u8 interp_filter[4][2];
u8 padding0[11];
u8 coef[2][4][2][128];
u8 uv_mode_0_2[3][9];
u8 padding1[5];
u8 uv_mode_3_5[3][9];
u8 padding2[5];
u8 uv_mode_6_8[3][9];
u8 padding3[5];
u8 uv_mode_9[9];
u8 padding4[7];
u8 padding5[16];
struct {
u8 joint[3];
u8 sign[2];
u8 classes[2][10];
u8 class0_bit[2];
u8 bits[2][10];
u8 class0_fr[2][2][3];
u8 fr[2][3];
u8 class0_hp[2];
u8 hp[2];
} mv;
};
struct rkvdec_vp9_probs {
u8 partition[16][3];
u8 pred[3];
u8 tree[7];
u8 skip[3];
u8 tx32[2][3];
u8 tx16[2][2];
u8 tx8[2][1];
u8 is_inter[4];
/* 128 bit alignment */
u8 padding0[3];
union {
struct rkvdec_vp9_inter_frame_probs inter;
struct rkvdec_vp9_intra_only_frame_probs intra_only;
};
/* 128 bit alignment */
u8 padding1[11];
};
/* Data structure describing auxiliary buffer format. */
struct rkvdec_vp9_priv_tbl {
struct rkvdec_vp9_probs probs;
u8 segmap[2][RKVDEC_VP9_MAX_SEGMAP_SIZE];
};
struct rkvdec_vp9_refs_counts {
u32 eob[2];
u32 coeff[3];
};
struct rkvdec_vp9_inter_frame_symbol_counts {
u32 partition[16][4];
u32 skip[3][2];
u32 inter[4][2];
u32 tx32p[2][4];
u32 tx16p[2][4];
u32 tx8p[2][2];
u32 y_mode[4][10];
u32 uv_mode[10][10];
u32 comp[5][2];
u32 comp_ref[5][2];
u32 single_ref[5][2][2];
u32 mv_mode[7][4];
u32 filter[4][3];
u32 mv_joint[4];
u32 sign[2][2];
/* add 1 element for align */
u32 classes[2][11 + 1];
u32 class0[2][2];
u32 bits[2][10][2];
u32 class0_fp[2][2][4];
u32 fp[2][4];
u32 class0_hp[2][2];
u32 hp[2][2];
struct rkvdec_vp9_refs_counts ref_cnt[2][4][2][6][6];
};
struct rkvdec_vp9_intra_frame_symbol_counts {
u32 partition[4][4][4];
u32 skip[3][2];
u32 intra[4][2];
u32 tx32p[2][4];
u32 tx16p[2][4];
u32 tx8p[2][2];
struct rkvdec_vp9_refs_counts ref_cnt[2][4][2][6][6];
};
struct rkvdec_vp9_run {
struct rkvdec_run base;
const struct v4l2_ctrl_vp9_frame *decode_params;
};
struct rkvdec_vp9_frame_info {
u32 valid : 1;
u32 segmapid : 1;
u32 frame_context_idx : 2;
u32 reference_mode : 2;
u32 tx_mode : 3;
u32 interpolation_filter : 3;
u32 flags;
u64 timestamp;
struct v4l2_vp9_segmentation seg;
struct v4l2_vp9_loop_filter lf;
};
struct rkvdec_vp9_ctx {
struct rkvdec_aux_buf priv_tbl;
struct rkvdec_aux_buf count_tbl;
struct v4l2_vp9_frame_symbol_counts inter_cnts;
struct v4l2_vp9_frame_symbol_counts intra_cnts;
struct v4l2_vp9_frame_context probability_tables;
struct v4l2_vp9_frame_context frame_context[4];
struct rkvdec_vp9_frame_info cur;
struct rkvdec_vp9_frame_info last;
};
static void write_coeff_plane(const u8 coef[6][6][3], u8 *coeff_plane)
{
unsigned int idx = 0, byte_count = 0;
int k, m, n;
u8 p;
for (k = 0; k < 6; k++) {
for (m = 0; m < 6; m++) {
for (n = 0; n < 3; n++) {
p = coef[k][m][n];
coeff_plane[idx++] = p;
byte_count++;
if (byte_count == 27) {
idx += 5;
byte_count = 0;
}
}
}
}
}
static void init_intra_only_probs(struct rkvdec_ctx *ctx,
const struct rkvdec_vp9_run *run)
{
struct rkvdec_vp9_ctx *vp9_ctx = ctx->priv;
struct rkvdec_vp9_priv_tbl *tbl = vp9_ctx->priv_tbl.cpu;
struct rkvdec_vp9_intra_only_frame_probs *rkprobs;
const struct v4l2_vp9_frame_context *probs;
unsigned int i, j, k;
rkprobs = &tbl->probs.intra_only;
probs = &vp9_ctx->probability_tables;
/*
* intra only 149 x 128 bits ,aligned to 152 x 128 bits coeff related
* prob 64 x 128 bits
*/
for (i = 0; i < ARRAY_SIZE(probs->coef); i++) {
for (j = 0; j < ARRAY_SIZE(probs->coef[0]); j++)
write_coeff_plane(probs->coef[i][j][0],
rkprobs->coef_intra[i][j]);
}
/* intra mode prob 80 x 128 bits */
for (i = 0; i < ARRAY_SIZE(v4l2_vp9_kf_y_mode_prob); i++) {
unsigned int byte_count = 0;
int idx = 0;
/* vp9_kf_y_mode_prob */
for (j = 0; j < ARRAY_SIZE(v4l2_vp9_kf_y_mode_prob[0]); j++) {
for (k = 0; k < ARRAY_SIZE(v4l2_vp9_kf_y_mode_prob[0][0]);
k++) {
u8 val = v4l2_vp9_kf_y_mode_prob[i][j][k];
rkprobs->intra_mode[i].y_mode[idx++] = val;
byte_count++;
if (byte_count == 27) {
byte_count = 0;
idx += 5;
}
}
}
}
for (i = 0; i < sizeof(v4l2_vp9_kf_uv_mode_prob); ++i) {
const u8 *ptr = (const u8 *)v4l2_vp9_kf_uv_mode_prob;
rkprobs->intra_mode[i / 23].uv_mode[i % 23] = ptr[i];
}
}
static void init_inter_probs(struct rkvdec_ctx *ctx,
const struct rkvdec_vp9_run *run)
{
struct rkvdec_vp9_ctx *vp9_ctx = ctx->priv;
struct rkvdec_vp9_priv_tbl *tbl = vp9_ctx->priv_tbl.cpu;
struct rkvdec_vp9_inter_frame_probs *rkprobs;
const struct v4l2_vp9_frame_context *probs;
unsigned int i, j, k;
rkprobs = &tbl->probs.inter;
probs = &vp9_ctx->probability_tables;
/*
* inter probs
* 151 x 128 bits, aligned to 152 x 128 bits
* inter only
* intra_y_mode & inter_block info 6 x 128 bits
*/
memcpy(rkprobs->y_mode, probs->y_mode, sizeof(rkprobs->y_mode));
memcpy(rkprobs->comp_mode, probs->comp_mode,
sizeof(rkprobs->comp_mode));
memcpy(rkprobs->comp_ref, probs->comp_ref,
sizeof(rkprobs->comp_ref));
memcpy(rkprobs->single_ref, probs->single_ref,
sizeof(rkprobs->single_ref));
memcpy(rkprobs->inter_mode, probs->inter_mode,
sizeof(rkprobs->inter_mode));
memcpy(rkprobs->interp_filter, probs->interp_filter,
sizeof(rkprobs->interp_filter));
/* 128 x 128 bits coeff related */
for (i = 0; i < ARRAY_SIZE(probs->coef); i++) {
for (j = 0; j < ARRAY_SIZE(probs->coef[0]); j++) {
for (k = 0; k < ARRAY_SIZE(probs->coef[0][0]); k++)
write_coeff_plane(probs->coef[i][j][k],
rkprobs->coef[k][i][j]);
}
}
/* intra uv mode 6 x 128 */
memcpy(rkprobs->uv_mode_0_2, &probs->uv_mode[0],
sizeof(rkprobs->uv_mode_0_2));
memcpy(rkprobs->uv_mode_3_5, &probs->uv_mode[3],
sizeof(rkprobs->uv_mode_3_5));
memcpy(rkprobs->uv_mode_6_8, &probs->uv_mode[6],
sizeof(rkprobs->uv_mode_6_8));
memcpy(rkprobs->uv_mode_9, &probs->uv_mode[9],
sizeof(rkprobs->uv_mode_9));
/* mv related 6 x 128 */
memcpy(rkprobs->mv.joint, probs->mv.joint,
sizeof(rkprobs->mv.joint));
memcpy(rkprobs->mv.sign, probs->mv.sign,
sizeof(rkprobs->mv.sign));
memcpy(rkprobs->mv.classes, probs->mv.classes,
sizeof(rkprobs->mv.classes));
memcpy(rkprobs->mv.class0_bit, probs->mv.class0_bit,
sizeof(rkprobs->mv.class0_bit));
memcpy(rkprobs->mv.bits, probs->mv.bits,
sizeof(rkprobs->mv.bits));
memcpy(rkprobs->mv.class0_fr, probs->mv.class0_fr,
sizeof(rkprobs->mv.class0_fr));
memcpy(rkprobs->mv.fr, probs->mv.fr,
sizeof(rkprobs->mv.fr));
memcpy(rkprobs->mv.class0_hp, probs->mv.class0_hp,
sizeof(rkprobs->mv.class0_hp));
memcpy(rkprobs->mv.hp, probs->mv.hp,
sizeof(rkprobs->mv.hp));
}
static void init_probs(struct rkvdec_ctx *ctx,
const struct rkvdec_vp9_run *run)
{
const struct v4l2_ctrl_vp9_frame *dec_params;
struct rkvdec_vp9_ctx *vp9_ctx = ctx->priv;
struct rkvdec_vp9_priv_tbl *tbl = vp9_ctx->priv_tbl.cpu;
struct rkvdec_vp9_probs *rkprobs = &tbl->probs;
const struct v4l2_vp9_segmentation *seg;
const struct v4l2_vp9_frame_context *probs;
bool intra_only;
dec_params = run->decode_params;
probs = &vp9_ctx->probability_tables;
seg = &dec_params->seg;
memset(rkprobs, 0, sizeof(*rkprobs));
intra_only = !!(dec_params->flags &
(V4L2_VP9_FRAME_FLAG_KEY_FRAME |
V4L2_VP9_FRAME_FLAG_INTRA_ONLY));
/* sb info 5 x 128 bit */
memcpy(rkprobs->partition,
intra_only ? v4l2_vp9_kf_partition_probs : probs->partition,
sizeof(rkprobs->partition));
memcpy(rkprobs->pred, seg->pred_probs, sizeof(rkprobs->pred));
memcpy(rkprobs->tree, seg->tree_probs, sizeof(rkprobs->tree));
memcpy(rkprobs->skip, probs->skip, sizeof(rkprobs->skip));
memcpy(rkprobs->tx32, probs->tx32, sizeof(rkprobs->tx32));
memcpy(rkprobs->tx16, probs->tx16, sizeof(rkprobs->tx16));
memcpy(rkprobs->tx8, probs->tx8, sizeof(rkprobs->tx8));
memcpy(rkprobs->is_inter, probs->is_inter, sizeof(rkprobs->is_inter));
if (intra_only)
init_intra_only_probs(ctx, run);
else
init_inter_probs(ctx, run);
}
struct rkvdec_vp9_ref_reg {
u32 reg_frm_size;
u32 reg_hor_stride;
u32 reg_y_stride;
u32 reg_yuv_stride;
u32 reg_ref_base;
};
static struct rkvdec_vp9_ref_reg ref_regs[] = {
{
.reg_frm_size = RKVDEC_REG_VP9_FRAME_SIZE(0),
.reg_hor_stride = RKVDEC_VP9_HOR_VIRSTRIDE(0),
.reg_y_stride = RKVDEC_VP9_LAST_FRAME_YSTRIDE,
.reg_yuv_stride = RKVDEC_VP9_LAST_FRAME_YUVSTRIDE,
.reg_ref_base = RKVDEC_REG_VP9_LAST_FRAME_BASE,
},
{
.reg_frm_size = RKVDEC_REG_VP9_FRAME_SIZE(1),
.reg_hor_stride = RKVDEC_VP9_HOR_VIRSTRIDE(1),
.reg_y_stride = RKVDEC_VP9_GOLDEN_FRAME_YSTRIDE,
.reg_yuv_stride = 0,
.reg_ref_base = RKVDEC_REG_VP9_GOLDEN_FRAME_BASE,
},
{
.reg_frm_size = RKVDEC_REG_VP9_FRAME_SIZE(2),
.reg_hor_stride = RKVDEC_VP9_HOR_VIRSTRIDE(2),
.reg_y_stride = RKVDEC_VP9_ALTREF_FRAME_YSTRIDE,
.reg_yuv_stride = 0,
.reg_ref_base = RKVDEC_REG_VP9_ALTREF_FRAME_BASE,
}
};
static struct rkvdec_decoded_buffer *
get_ref_buf(struct rkvdec_ctx *ctx, struct vb2_v4l2_buffer *dst, u64 timestamp)
{
struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
struct vb2_queue *cap_q = &m2m_ctx->cap_q_ctx.q;
struct vb2_buffer *buf;
/*
* If a ref is unused or invalid, address of current destination
* buffer is returned.
*/
buf = vb2_find_buffer(cap_q, timestamp);
if (!buf)
buf = &dst->vb2_buf;
return vb2_to_rkvdec_decoded_buf(buf);
}
static dma_addr_t get_mv_base_addr(struct rkvdec_decoded_buffer *buf)
{
unsigned int aligned_pitch, aligned_height, yuv_len;
aligned_height = round_up(buf->vp9.height, 64);
aligned_pitch = round_up(buf->vp9.width * buf->vp9.bit_depth, 512) / 8;
yuv_len = (aligned_height * aligned_pitch * 3) / 2;
return vb2_dma_contig_plane_dma_addr(&buf->base.vb.vb2_buf, 0) +
yuv_len;
}
static void config_ref_registers(struct rkvdec_ctx *ctx,
const struct rkvdec_vp9_run *run,
struct rkvdec_decoded_buffer *ref_buf,
struct rkvdec_vp9_ref_reg *ref_reg)
{
unsigned int aligned_pitch, aligned_height, y_len, yuv_len;
struct rkvdec_dev *rkvdec = ctx->dev;
aligned_height = round_up(ref_buf->vp9.height, 64);
writel_relaxed(RKVDEC_VP9_FRAMEWIDTH(ref_buf->vp9.width) |
RKVDEC_VP9_FRAMEHEIGHT(ref_buf->vp9.height),
rkvdec->regs + ref_reg->reg_frm_size);
writel_relaxed(vb2_dma_contig_plane_dma_addr(&ref_buf->base.vb.vb2_buf, 0),
rkvdec->regs + ref_reg->reg_ref_base);
if (&ref_buf->base.vb == run->base.bufs.dst)
return;
aligned_pitch = round_up(ref_buf->vp9.width * ref_buf->vp9.bit_depth, 512) / 8;
y_len = aligned_height * aligned_pitch;
yuv_len = (y_len * 3) / 2;
writel_relaxed(RKVDEC_HOR_Y_VIRSTRIDE(aligned_pitch / 16) |
RKVDEC_HOR_UV_VIRSTRIDE(aligned_pitch / 16),
rkvdec->regs + ref_reg->reg_hor_stride);
writel_relaxed(RKVDEC_VP9_REF_YSTRIDE(y_len / 16),
rkvdec->regs + ref_reg->reg_y_stride);
if (!ref_reg->reg_yuv_stride)
return;
writel_relaxed(RKVDEC_VP9_REF_YUVSTRIDE(yuv_len / 16),
rkvdec->regs + ref_reg->reg_yuv_stride);
}
static void config_seg_registers(struct rkvdec_ctx *ctx, unsigned int segid)
{
struct rkvdec_vp9_ctx *vp9_ctx = ctx->priv;
const struct v4l2_vp9_segmentation *seg;
struct rkvdec_dev *rkvdec = ctx->dev;
s16 feature_val;
int feature_id;
u32 val = 0;
seg = vp9_ctx->last.valid ? &vp9_ctx->last.seg : &vp9_ctx->cur.seg;
feature_id = V4L2_VP9_SEG_LVL_ALT_Q;
if (v4l2_vp9_seg_feat_enabled(seg->feature_enabled, feature_id, segid)) {
feature_val = seg->feature_data[segid][feature_id];
val |= RKVDEC_SEGID_FRAME_QP_DELTA_EN(1) |
RKVDEC_SEGID_FRAME_QP_DELTA(feature_val);
}
feature_id = V4L2_VP9_SEG_LVL_ALT_L;
if (v4l2_vp9_seg_feat_enabled(seg->feature_enabled, feature_id, segid)) {
feature_val = seg->feature_data[segid][feature_id];
val |= RKVDEC_SEGID_FRAME_LOOPFILTER_VALUE_EN(1) |
RKVDEC_SEGID_FRAME_LOOPFILTER_VALUE(feature_val);
}
feature_id = V4L2_VP9_SEG_LVL_REF_FRAME;
if (v4l2_vp9_seg_feat_enabled(seg->feature_enabled, feature_id, segid)) {
feature_val = seg->feature_data[segid][feature_id];
val |= RKVDEC_SEGID_REFERINFO_EN(1) |
RKVDEC_SEGID_REFERINFO(feature_val);
}
feature_id = V4L2_VP9_SEG_LVL_SKIP;
if (v4l2_vp9_seg_feat_enabled(seg->feature_enabled, feature_id, segid))
val |= RKVDEC_SEGID_FRAME_SKIP_EN(1);
if (!segid &&
(seg->flags & V4L2_VP9_SEGMENTATION_FLAG_ABS_OR_DELTA_UPDATE))
val |= RKVDEC_SEGID_ABS_DELTA(1);
writel_relaxed(val, rkvdec->regs + RKVDEC_VP9_SEGID_GRP(segid));
}
static void update_dec_buf_info(struct rkvdec_decoded_buffer *buf,
const struct v4l2_ctrl_vp9_frame *dec_params)
{
buf->vp9.width = dec_params->frame_width_minus_1 + 1;
buf->vp9.height = dec_params->frame_height_minus_1 + 1;
buf->vp9.bit_depth = dec_params->bit_depth;
}
static void update_ctx_cur_info(struct rkvdec_vp9_ctx *vp9_ctx,
struct rkvdec_decoded_buffer *buf,
const struct v4l2_ctrl_vp9_frame *dec_params)
{
vp9_ctx->cur.valid = true;
vp9_ctx->cur.reference_mode = dec_params->reference_mode;
vp9_ctx->cur.interpolation_filter = dec_params->interpolation_filter;
vp9_ctx->cur.flags = dec_params->flags;
vp9_ctx->cur.timestamp = buf->base.vb.vb2_buf.timestamp;
vp9_ctx->cur.seg = dec_params->seg;
vp9_ctx->cur.lf = dec_params->lf;
}
static void update_ctx_last_info(struct rkvdec_vp9_ctx *vp9_ctx)
{
vp9_ctx->last = vp9_ctx->cur;
}
static void config_registers(struct rkvdec_ctx *ctx,
const struct rkvdec_vp9_run *run)
{
unsigned int y_len, uv_len, yuv_len, bit_depth, aligned_height, aligned_pitch, stream_len;
const struct v4l2_ctrl_vp9_frame *dec_params;
struct rkvdec_decoded_buffer *ref_bufs[3];
struct rkvdec_decoded_buffer *dst, *last, *mv_ref;
struct rkvdec_vp9_ctx *vp9_ctx = ctx->priv;
u32 val, last_frame_info = 0;
const struct v4l2_vp9_segmentation *seg;
struct rkvdec_dev *rkvdec = ctx->dev;
dma_addr_t addr;
bool intra_only;
unsigned int i;
dec_params = run->decode_params;
dst = vb2_to_rkvdec_decoded_buf(&run->base.bufs.dst->vb2_buf);
ref_bufs[0] = get_ref_buf(ctx, &dst->base.vb, dec_params->last_frame_ts);
ref_bufs[1] = get_ref_buf(ctx, &dst->base.vb, dec_params->golden_frame_ts);
ref_bufs[2] = get_ref_buf(ctx, &dst->base.vb, dec_params->alt_frame_ts);
if (vp9_ctx->last.valid)
last = get_ref_buf(ctx, &dst->base.vb, vp9_ctx->last.timestamp);
else
last = dst;
update_dec_buf_info(dst, dec_params);
update_ctx_cur_info(vp9_ctx, dst, dec_params);
seg = &dec_params->seg;
intra_only = !!(dec_params->flags &
(V4L2_VP9_FRAME_FLAG_KEY_FRAME |
V4L2_VP9_FRAME_FLAG_INTRA_ONLY));
writel_relaxed(RKVDEC_MODE(RKVDEC_MODE_VP9),
rkvdec->regs + RKVDEC_REG_SYSCTRL);
bit_depth = dec_params->bit_depth;
aligned_height = round_up(ctx->decoded_fmt.fmt.pix_mp.height, 64);
aligned_pitch = round_up(ctx->decoded_fmt.fmt.pix_mp.width *
bit_depth,
512) / 8;
y_len = aligned_height * aligned_pitch;
uv_len = y_len / 2;
yuv_len = y_len + uv_len;
writel_relaxed(RKVDEC_Y_HOR_VIRSTRIDE(aligned_pitch / 16) |
RKVDEC_UV_HOR_VIRSTRIDE(aligned_pitch / 16),
rkvdec->regs + RKVDEC_REG_PICPAR);
writel_relaxed(RKVDEC_Y_VIRSTRIDE(y_len / 16),
rkvdec->regs + RKVDEC_REG_Y_VIRSTRIDE);
writel_relaxed(RKVDEC_YUV_VIRSTRIDE(yuv_len / 16),
rkvdec->regs + RKVDEC_REG_YUV_VIRSTRIDE);
stream_len = vb2_get_plane_payload(&run->base.bufs.src->vb2_buf, 0);
writel_relaxed(RKVDEC_STRM_LEN(stream_len),
rkvdec->regs + RKVDEC_REG_STRM_LEN);
/*
* Reset count buffer, because decoder only output intra related syntax
* counts when decoding intra frame, but update entropy need to update
* all the probabilities.
*/
if (intra_only)
memset(vp9_ctx->count_tbl.cpu, 0, vp9_ctx->count_tbl.size);
vp9_ctx->cur.segmapid = vp9_ctx->last.segmapid;
if (!intra_only &&
!(dec_params->flags & V4L2_VP9_FRAME_FLAG_ERROR_RESILIENT) &&
(!(seg->flags & V4L2_VP9_SEGMENTATION_FLAG_ENABLED) ||
(seg->flags & V4L2_VP9_SEGMENTATION_FLAG_UPDATE_MAP)))
vp9_ctx->cur.segmapid++;
for (i = 0; i < ARRAY_SIZE(ref_bufs); i++)
config_ref_registers(ctx, run, ref_bufs[i], &ref_regs[i]);
for (i = 0; i < 8; i++)
config_seg_registers(ctx, i);
writel_relaxed(RKVDEC_VP9_TX_MODE(vp9_ctx->cur.tx_mode) |
RKVDEC_VP9_FRAME_REF_MODE(dec_params->reference_mode),
rkvdec->regs + RKVDEC_VP9_CPRHEADER_CONFIG);
if (!intra_only) {
const struct v4l2_vp9_loop_filter *lf;
s8 delta;
if (vp9_ctx->last.valid)
lf = &vp9_ctx->last.lf;
else
lf = &vp9_ctx->cur.lf;
val = 0;
for (i = 0; i < ARRAY_SIZE(lf->ref_deltas); i++) {
delta = lf->ref_deltas[i];
val |= RKVDEC_REF_DELTAS_LASTFRAME(i, delta);
}
writel_relaxed(val,
rkvdec->regs + RKVDEC_VP9_REF_DELTAS_LASTFRAME);
for (i = 0; i < ARRAY_SIZE(lf->mode_deltas); i++) {
delta = lf->mode_deltas[i];
last_frame_info |= RKVDEC_MODE_DELTAS_LASTFRAME(i,
delta);
}
}
if (vp9_ctx->last.valid && !intra_only &&
vp9_ctx->last.seg.flags & V4L2_VP9_SEGMENTATION_FLAG_ENABLED)
last_frame_info |= RKVDEC_SEG_EN_LASTFRAME;
if (vp9_ctx->last.valid &&
vp9_ctx->last.flags & V4L2_VP9_FRAME_FLAG_SHOW_FRAME)
last_frame_info |= RKVDEC_LAST_SHOW_FRAME;
if (vp9_ctx->last.valid &&
vp9_ctx->last.flags &
(V4L2_VP9_FRAME_FLAG_KEY_FRAME | V4L2_VP9_FRAME_FLAG_INTRA_ONLY))
last_frame_info |= RKVDEC_LAST_INTRA_ONLY;
if (vp9_ctx->last.valid &&
last->vp9.width == dst->vp9.width &&
last->vp9.height == dst->vp9.height)
last_frame_info |= RKVDEC_LAST_WIDHHEIGHT_EQCUR;
writel_relaxed(last_frame_info,
rkvdec->regs + RKVDEC_VP9_INFO_LASTFRAME);
writel_relaxed(stream_len - dec_params->compressed_header_size -
dec_params->uncompressed_header_size,
rkvdec->regs + RKVDEC_VP9_LASTTILE_SIZE);
for (i = 0; !intra_only && i < ARRAY_SIZE(ref_bufs); i++) {
unsigned int refw = ref_bufs[i]->vp9.width;
unsigned int refh = ref_bufs[i]->vp9.height;
u32 hscale, vscale;
hscale = (refw << 14) / dst->vp9.width;
vscale = (refh << 14) / dst->vp9.height;
writel_relaxed(RKVDEC_VP9_REF_HOR_SCALE(hscale) |
RKVDEC_VP9_REF_VER_SCALE(vscale),
rkvdec->regs + RKVDEC_VP9_REF_SCALE(i));
}
addr = vb2_dma_contig_plane_dma_addr(&dst->base.vb.vb2_buf, 0);
writel_relaxed(addr, rkvdec->regs + RKVDEC_REG_DECOUT_BASE);
addr = vb2_dma_contig_plane_dma_addr(&run->base.bufs.src->vb2_buf, 0);
writel_relaxed(addr, rkvdec->regs + RKVDEC_REG_STRM_RLC_BASE);
writel_relaxed(vp9_ctx->priv_tbl.dma +
offsetof(struct rkvdec_vp9_priv_tbl, probs),
rkvdec->regs + RKVDEC_REG_CABACTBL_PROB_BASE);
writel_relaxed(vp9_ctx->count_tbl.dma,
rkvdec->regs + RKVDEC_REG_VP9COUNT_BASE);
writel_relaxed(vp9_ctx->priv_tbl.dma +
offsetof(struct rkvdec_vp9_priv_tbl, segmap) +
(RKVDEC_VP9_MAX_SEGMAP_SIZE * vp9_ctx->cur.segmapid),
rkvdec->regs + RKVDEC_REG_VP9_SEGIDCUR_BASE);
writel_relaxed(vp9_ctx->priv_tbl.dma +
offsetof(struct rkvdec_vp9_priv_tbl, segmap) +
(RKVDEC_VP9_MAX_SEGMAP_SIZE * (!vp9_ctx->cur.segmapid)),
rkvdec->regs + RKVDEC_REG_VP9_SEGIDLAST_BASE);
if (!intra_only &&
!(dec_params->flags & V4L2_VP9_FRAME_FLAG_ERROR_RESILIENT) &&
vp9_ctx->last.valid)
mv_ref = last;
else
mv_ref = dst;
writel_relaxed(get_mv_base_addr(mv_ref),
rkvdec->regs + RKVDEC_VP9_REF_COLMV_BASE);
writel_relaxed(ctx->decoded_fmt.fmt.pix_mp.width |
(ctx->decoded_fmt.fmt.pix_mp.height << 16),
rkvdec->regs + RKVDEC_REG_PERFORMANCE_CYCLE);
}
static int validate_dec_params(struct rkvdec_ctx *ctx,
const struct v4l2_ctrl_vp9_frame *dec_params)
{
unsigned int aligned_width, aligned_height;
/* We only support profile 0. */
if (dec_params->profile != 0) {
dev_err(ctx->dev->dev, "unsupported profile %d\n",
dec_params->profile);
return -EINVAL;
}
aligned_width = round_up(dec_params->frame_width_minus_1 + 1, 64);
aligned_height = round_up(dec_params->frame_height_minus_1 + 1, 64);
/*
* Userspace should update the capture/decoded format when the
* resolution changes.
*/
if (aligned_width != ctx->decoded_fmt.fmt.pix_mp.width ||
aligned_height != ctx->decoded_fmt.fmt.pix_mp.height) {
dev_err(ctx->dev->dev,
"unexpected bitstream resolution %dx%d\n",
dec_params->frame_width_minus_1 + 1,
dec_params->frame_height_minus_1 + 1);
return -EINVAL;
}
return 0;
}
static int rkvdec_vp9_run_preamble(struct rkvdec_ctx *ctx,
struct rkvdec_vp9_run *run)
{
const struct v4l2_ctrl_vp9_frame *dec_params;
const struct v4l2_ctrl_vp9_compressed_hdr *prob_updates;
struct rkvdec_vp9_ctx *vp9_ctx = ctx->priv;
struct v4l2_ctrl *ctrl;
unsigned int fctx_idx;
int ret;
/* v4l2-specific stuff */
rkvdec_run_preamble(ctx, &run->base);
ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl,
V4L2_CID_STATELESS_VP9_FRAME);
if (WARN_ON(!ctrl))
return -EINVAL;
dec_params = ctrl->p_cur.p;
ret = validate_dec_params(ctx, dec_params);
if (ret)
return ret;
run->decode_params = dec_params;
ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, V4L2_CID_STATELESS_VP9_COMPRESSED_HDR);
if (WARN_ON(!ctrl))
return -EINVAL;
prob_updates = ctrl->p_cur.p;
vp9_ctx->cur.tx_mode = prob_updates->tx_mode;
/*
* vp9 stuff
*
* by this point the userspace has done all parts of 6.2 uncompressed_header()
* except this fragment:
* if ( FrameIsIntra || error_resilient_mode ) {
* setup_past_independence ( )
* if ( frame_type == KEY_FRAME || error_resilient_mode == 1 ||
* reset_frame_context == 3 ) {
* for ( i = 0; i < 4; i ++ ) {
* save_probs( i )
* }
* } else if ( reset_frame_context == 2 ) {
* save_probs( frame_context_idx )
* }
* frame_context_idx = 0
* }
*/
fctx_idx = v4l2_vp9_reset_frame_ctx(dec_params, vp9_ctx->frame_context);
vp9_ctx->cur.frame_context_idx = fctx_idx;
/* 6.1 frame(sz): load_probs() and load_probs2() */
vp9_ctx->probability_tables = vp9_ctx->frame_context[fctx_idx];
/*
* The userspace has also performed 6.3 compressed_header(), but handling the
* probs in a special way. All probs which need updating, except MV-related,
* have been read from the bitstream and translated through inv_map_table[],
* but no 6.3.6 inv_recenter_nonneg(v, m) has been performed. The values passed
* by userspace are either translated values (there are no 0 values in
* inv_map_table[]), or zero to indicate no update. All MV-related probs which need
* updating have been read from the bitstream and (mv_prob << 1) | 1 has been
* performed. The values passed by userspace are either new values
* to replace old ones (the above mentioned shift and bitwise or never result in
* a zero) or zero to indicate no update.
* fw_update_probs() performs actual probs updates or leaves probs as-is
* for values for which a zero was passed from userspace.
*/
v4l2_vp9_fw_update_probs(&vp9_ctx->probability_tables, prob_updates, dec_params);
return 0;
}
static int rkvdec_vp9_run(struct rkvdec_ctx *ctx)
{
struct rkvdec_dev *rkvdec = ctx->dev;
struct rkvdec_vp9_run run = { };
int ret;
ret = rkvdec_vp9_run_preamble(ctx, &run);
if (ret) {
rkvdec_run_postamble(ctx, &run.base);
return ret;
}
/* Prepare probs. */
init_probs(ctx, &run);
/* Configure hardware registers. */
config_registers(ctx, &run);
rkvdec_run_postamble(ctx, &run.base);
schedule_delayed_work(&rkvdec->watchdog_work, msecs_to_jiffies(2000));
writel(1, rkvdec->regs + RKVDEC_REG_PREF_LUMA_CACHE_COMMAND);
writel(1, rkvdec->regs + RKVDEC_REG_PREF_CHR_CACHE_COMMAND);
writel(0xe, rkvdec->regs + RKVDEC_REG_STRMD_ERR_EN);
/* Start decoding! */
writel(RKVDEC_INTERRUPT_DEC_E | RKVDEC_CONFIG_DEC_CLK_GATE_E |
RKVDEC_TIMEOUT_E | RKVDEC_BUF_EMPTY_E,
rkvdec->regs + RKVDEC_REG_INTERRUPT);
return 0;
}
#define copy_tx_and_skip(p1, p2) \
do { \
memcpy((p1)->tx8, (p2)->tx8, sizeof((p1)->tx8)); \
memcpy((p1)->tx16, (p2)->tx16, sizeof((p1)->tx16)); \
memcpy((p1)->tx32, (p2)->tx32, sizeof((p1)->tx32)); \
memcpy((p1)->skip, (p2)->skip, sizeof((p1)->skip)); \
} while (0)
static void rkvdec_vp9_done(struct rkvdec_ctx *ctx,
struct vb2_v4l2_buffer *src_buf,
struct vb2_v4l2_buffer *dst_buf,
enum vb2_buffer_state result)
{
struct rkvdec_vp9_ctx *vp9_ctx = ctx->priv;
unsigned int fctx_idx;
/* v4l2-specific stuff */
if (result == VB2_BUF_STATE_ERROR)
goto out_update_last;
/*
* vp9 stuff
*
* 6.1.2 refresh_probs()
*
* In the spec a complementary condition goes last in 6.1.2 refresh_probs(),
* but it makes no sense to perform all the activities from the first "if"
* there if we actually are not refreshing the frame context. On top of that,
* because of 6.2 uncompressed_header() whenever error_resilient_mode == 1,
* refresh_frame_context == 0. Consequently, if we don't jump to out_update_last
* it means error_resilient_mode must be 0.
*/
if (!(vp9_ctx->cur.flags & V4L2_VP9_FRAME_FLAG_REFRESH_FRAME_CTX))
goto out_update_last;
fctx_idx = vp9_ctx->cur.frame_context_idx;
if (!(vp9_ctx->cur.flags & V4L2_VP9_FRAME_FLAG_PARALLEL_DEC_MODE)) {
/* error_resilient_mode == 0 && frame_parallel_decoding_mode == 0 */
struct v4l2_vp9_frame_context *probs = &vp9_ctx->probability_tables;
bool frame_is_intra = vp9_ctx->cur.flags &
(V4L2_VP9_FRAME_FLAG_KEY_FRAME | V4L2_VP9_FRAME_FLAG_INTRA_ONLY);
struct tx_and_skip {
u8 tx8[2][1];
u8 tx16[2][2];
u8 tx32[2][3];
u8 skip[3];
} _tx_skip, *tx_skip = &_tx_skip;
struct v4l2_vp9_frame_symbol_counts *counts;
/* buffer the forward-updated TX and skip probs */
if (frame_is_intra)
copy_tx_and_skip(tx_skip, probs);
/* 6.1.2 refresh_probs(): load_probs() and load_probs2() */
*probs = vp9_ctx->frame_context[fctx_idx];
/* if FrameIsIntra then undo the effect of load_probs2() */
if (frame_is_intra)
copy_tx_and_skip(probs, tx_skip);
counts = frame_is_intra ? &vp9_ctx->intra_cnts : &vp9_ctx->inter_cnts;
v4l2_vp9_adapt_coef_probs(probs, counts,
!vp9_ctx->last.valid ||
vp9_ctx->last.flags & V4L2_VP9_FRAME_FLAG_KEY_FRAME,
frame_is_intra);
if (!frame_is_intra) {
const struct rkvdec_vp9_inter_frame_symbol_counts *inter_cnts;
u32 classes[2][11];
int i;
inter_cnts = vp9_ctx->count_tbl.cpu;
for (i = 0; i < ARRAY_SIZE(classes); ++i)
memcpy(classes[i], inter_cnts->classes[i], sizeof(classes[0]));
counts->classes = &classes;
/* load_probs2() already done */
v4l2_vp9_adapt_noncoef_probs(&vp9_ctx->probability_tables, counts,
vp9_ctx->cur.reference_mode,
vp9_ctx->cur.interpolation_filter,
vp9_ctx->cur.tx_mode, vp9_ctx->cur.flags);
}
}
/* 6.1.2 refresh_probs(): save_probs(fctx_idx) */
vp9_ctx->frame_context[fctx_idx] = vp9_ctx->probability_tables;
out_update_last:
update_ctx_last_info(vp9_ctx);
}
static void rkvdec_init_v4l2_vp9_count_tbl(struct rkvdec_ctx *ctx)
{
struct rkvdec_vp9_ctx *vp9_ctx = ctx->priv;
struct rkvdec_vp9_intra_frame_symbol_counts *intra_cnts = vp9_ctx->count_tbl.cpu;
struct rkvdec_vp9_inter_frame_symbol_counts *inter_cnts = vp9_ctx->count_tbl.cpu;
int i, j, k, l, m;
vp9_ctx->inter_cnts.partition = &inter_cnts->partition;
vp9_ctx->inter_cnts.skip = &inter_cnts->skip;
vp9_ctx->inter_cnts.intra_inter = &inter_cnts->inter;
vp9_ctx->inter_cnts.tx32p = &inter_cnts->tx32p;
vp9_ctx->inter_cnts.tx16p = &inter_cnts->tx16p;
vp9_ctx->inter_cnts.tx8p = &inter_cnts->tx8p;
vp9_ctx->intra_cnts.partition = (u32 (*)[16][4])(&intra_cnts->partition);
vp9_ctx->intra_cnts.skip = &intra_cnts->skip;
vp9_ctx->intra_cnts.intra_inter = &intra_cnts->intra;
vp9_ctx->intra_cnts.tx32p = &intra_cnts->tx32p;
vp9_ctx->intra_cnts.tx16p = &intra_cnts->tx16p;
vp9_ctx->intra_cnts.tx8p = &intra_cnts->tx8p;
vp9_ctx->inter_cnts.y_mode = &inter_cnts->y_mode;
vp9_ctx->inter_cnts.uv_mode = &inter_cnts->uv_mode;
vp9_ctx->inter_cnts.comp = &inter_cnts->comp;
vp9_ctx->inter_cnts.comp_ref = &inter_cnts->comp_ref;
vp9_ctx->inter_cnts.single_ref = &inter_cnts->single_ref;
vp9_ctx->inter_cnts.mv_mode = &inter_cnts->mv_mode;
vp9_ctx->inter_cnts.filter = &inter_cnts->filter;
vp9_ctx->inter_cnts.mv_joint = &inter_cnts->mv_joint;
vp9_ctx->inter_cnts.sign = &inter_cnts->sign;
/*
* rk hardware actually uses "u32 classes[2][11 + 1];"
* instead of "u32 classes[2][11];", so this must be explicitly
* copied into vp9_ctx->classes when passing the data to the
* vp9 library function
*/
vp9_ctx->inter_cnts.class0 = &inter_cnts->class0;
vp9_ctx->inter_cnts.bits = &inter_cnts->bits;
vp9_ctx->inter_cnts.class0_fp = &inter_cnts->class0_fp;
vp9_ctx->inter_cnts.fp = &inter_cnts->fp;
vp9_ctx->inter_cnts.class0_hp = &inter_cnts->class0_hp;
vp9_ctx->inter_cnts.hp = &inter_cnts->hp;
#define INNERMOST_LOOP \
do { \
for (m = 0; m < ARRAY_SIZE(vp9_ctx->inter_cnts.coeff[0][0][0][0]); ++m) {\
vp9_ctx->inter_cnts.coeff[i][j][k][l][m] = \
&inter_cnts->ref_cnt[k][i][j][l][m].coeff; \
vp9_ctx->inter_cnts.eob[i][j][k][l][m][0] = \
&inter_cnts->ref_cnt[k][i][j][l][m].eob[0]; \
vp9_ctx->inter_cnts.eob[i][j][k][l][m][1] = \
&inter_cnts->ref_cnt[k][i][j][l][m].eob[1]; \
\
vp9_ctx->intra_cnts.coeff[i][j][k][l][m] = \
&intra_cnts->ref_cnt[k][i][j][l][m].coeff; \
vp9_ctx->intra_cnts.eob[i][j][k][l][m][0] = \
&intra_cnts->ref_cnt[k][i][j][l][m].eob[0]; \
vp9_ctx->intra_cnts.eob[i][j][k][l][m][1] = \
&intra_cnts->ref_cnt[k][i][j][l][m].eob[1]; \
} \
} while (0)
for (i = 0; i < ARRAY_SIZE(vp9_ctx->inter_cnts.coeff); ++i)
for (j = 0; j < ARRAY_SIZE(vp9_ctx->inter_cnts.coeff[0]); ++j)
for (k = 0; k < ARRAY_SIZE(vp9_ctx->inter_cnts.coeff[0][0]); ++k)
for (l = 0; l < ARRAY_SIZE(vp9_ctx->inter_cnts.coeff[0][0][0]); ++l)
INNERMOST_LOOP;
#undef INNERMOST_LOOP
}
static int rkvdec_vp9_start(struct rkvdec_ctx *ctx)
{
struct rkvdec_dev *rkvdec = ctx->dev;
struct rkvdec_vp9_priv_tbl *priv_tbl;
struct rkvdec_vp9_ctx *vp9_ctx;
unsigned char *count_tbl;
int ret;
vp9_ctx = kzalloc(sizeof(*vp9_ctx), GFP_KERNEL);
if (!vp9_ctx)
return -ENOMEM;
ctx->priv = vp9_ctx;
BUILD_BUG_ON(sizeof(priv_tbl->probs) % 16); /* ensure probs size is 128-bit aligned */
priv_tbl = dma_alloc_coherent(rkvdec->dev, sizeof(*priv_tbl),
&vp9_ctx->priv_tbl.dma, GFP_KERNEL);
if (!priv_tbl) {
ret = -ENOMEM;
goto err_free_ctx;
}
vp9_ctx->priv_tbl.size = sizeof(*priv_tbl);
vp9_ctx->priv_tbl.cpu = priv_tbl;
count_tbl = dma_alloc_coherent(rkvdec->dev, RKVDEC_VP9_COUNT_SIZE,
&vp9_ctx->count_tbl.dma, GFP_KERNEL);
if (!count_tbl) {
ret = -ENOMEM;
goto err_free_priv_tbl;
}
vp9_ctx->count_tbl.size = RKVDEC_VP9_COUNT_SIZE;
vp9_ctx->count_tbl.cpu = count_tbl;
rkvdec_init_v4l2_vp9_count_tbl(ctx);
return 0;
err_free_priv_tbl:
dma_free_coherent(rkvdec->dev, vp9_ctx->priv_tbl.size,
vp9_ctx->priv_tbl.cpu, vp9_ctx->priv_tbl.dma);
err_free_ctx:
kfree(vp9_ctx);
return ret;
}
static void rkvdec_vp9_stop(struct rkvdec_ctx *ctx)
{
struct rkvdec_vp9_ctx *vp9_ctx = ctx->priv;
struct rkvdec_dev *rkvdec = ctx->dev;
dma_free_coherent(rkvdec->dev, vp9_ctx->count_tbl.size,
vp9_ctx->count_tbl.cpu, vp9_ctx->count_tbl.dma);
dma_free_coherent(rkvdec->dev, vp9_ctx->priv_tbl.size,
vp9_ctx->priv_tbl.cpu, vp9_ctx->priv_tbl.dma);
kfree(vp9_ctx);
}
static int rkvdec_vp9_adjust_fmt(struct rkvdec_ctx *ctx,
struct v4l2_format *f)
{
struct v4l2_pix_format_mplane *fmt = &f->fmt.pix_mp;
fmt->num_planes = 1;
if (!fmt->plane_fmt[0].sizeimage)
fmt->plane_fmt[0].sizeimage = fmt->width * fmt->height * 2;
return 0;
}
const struct rkvdec_coded_fmt_ops rkvdec_vp9_fmt_ops = {
.adjust_fmt = rkvdec_vp9_adjust_fmt,
.start = rkvdec_vp9_start,
.stop = rkvdec_vp9_stop,
.run = rkvdec_vp9_run,
.done = rkvdec_vp9_done,
};
