// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) STMicroelectronics SA 2015
* Authors: Yannick Fertre <[email protected]>
* Hugues Fruchet <[email protected]>
*/
#include <linux/debugfs.h>
#include "hva.h"
#include "hva-hw.h"
static void format_ctx(struct seq_file *s, struct hva_ctx *ctx)
{
struct hva_streaminfo *stream = &ctx->streaminfo;
struct hva_frameinfo *frame = &ctx->frameinfo;
struct hva_controls *ctrls = &ctx->ctrls;
struct hva_ctx_dbg *dbg = &ctx->dbg;
u32 bitrate_mode, aspect, entropy, vui_sar, sei_fp;
seq_printf(s, "|-%s\n |\n", ctx->name);
seq_printf(s, " |-[%sframe info]\n",
ctx->flags & HVA_FLAG_FRAMEINFO ? "" : "default ");
seq_printf(s, " | |- pixel format=%4.4s\n"
" | |- wxh=%dx%d\n"
" | |- wxh (w/ encoder alignment constraint)=%dx%d\n"
" |\n",
(char *)&frame->pixelformat,
frame->width, frame->height,
frame->aligned_width, frame->aligned_height);
seq_printf(s, " |-[%sstream info]\n",
ctx->flags & HVA_FLAG_STREAMINFO ? "" : "default ");
seq_printf(s, " | |- stream format=%4.4s\n"
" | |- wxh=%dx%d\n"
" | |- %s\n"
" | |- %s\n"
" |\n",
(char *)&stream->streamformat,
stream->width, stream->height,
stream->profile, stream->level);
bitrate_mode = V4L2_CID_MPEG_VIDEO_BITRATE_MODE;
aspect = V4L2_CID_MPEG_VIDEO_ASPECT;
seq_puts(s, " |-[parameters]\n");
seq_printf(s, " | |- %s\n"
" | |- bitrate=%d bps\n"
" | |- GOP size=%d\n"
" | |- video aspect=%s\n"
" | |- framerate=%d/%d\n",
v4l2_ctrl_get_menu(bitrate_mode)[ctrls->bitrate_mode],
ctrls->bitrate,
ctrls->gop_size,
v4l2_ctrl_get_menu(aspect)[ctrls->aspect],
ctrls->time_per_frame.denominator,
ctrls->time_per_frame.numerator);
entropy = V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE;
vui_sar = V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC;
sei_fp = V4L2_CID_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE;
if (stream->streamformat == V4L2_PIX_FMT_H264) {
seq_printf(s, " | |- %s entropy mode\n"
" | |- CPB size=%d kB\n"
" | |- DCT8x8 enable=%s\n"
" | |- qpmin=%d\n"
" | |- qpmax=%d\n"
" | |- PAR enable=%s\n"
" | |- PAR id=%s\n"
" | |- SEI frame packing enable=%s\n"
" | |- SEI frame packing type=%s\n",
v4l2_ctrl_get_menu(entropy)[ctrls->entropy_mode],
ctrls->cpb_size,
ctrls->dct8x8 ? "true" : "false",
ctrls->qpmin,
ctrls->qpmax,
ctrls->vui_sar ? "true" : "false",
v4l2_ctrl_get_menu(vui_sar)[ctrls->vui_sar_idc],
ctrls->sei_fp ? "true" : "false",
v4l2_ctrl_get_menu(sei_fp)[ctrls->sei_fp_type]);
}
if (ctx->sys_errors || ctx->encode_errors || ctx->frame_errors) {
seq_puts(s, " |\n |-[errors]\n");
seq_printf(s, " | |- system=%d\n"
" | |- encoding=%d\n"
" | |- frame=%d\n",
ctx->sys_errors,
ctx->encode_errors,
ctx->frame_errors);
}
seq_puts(s, " |\n |-[performances]\n");
seq_printf(s, " | |- frames encoded=%d\n"
" | |- avg HW processing duration (0.1ms)=%d [min=%d, max=%d]\n"
" | |- avg encoding period (0.1ms)=%d [min=%d, max=%d]\n"
" | |- avg fps (0.1Hz)=%d\n"
" | |- max reachable fps (0.1Hz)=%d\n"
" | |- avg bitrate (kbps)=%d [min=%d, max=%d]\n"
" | |- last bitrate (kbps)=%d\n",
dbg->cnt_duration,
dbg->avg_duration,
dbg->min_duration,
dbg->max_duration,
dbg->avg_period,
dbg->min_period,
dbg->max_period,
dbg->avg_fps,
dbg->max_fps,
dbg->avg_bitrate,
dbg->min_bitrate,
dbg->max_bitrate,
dbg->last_bitrate);
}
/*
* performance debug info
*/
void hva_dbg_perf_begin(struct hva_ctx *ctx)
{
u64 div;
u32 period;
u32 bitrate;
struct hva_ctx_dbg *dbg = &ctx->dbg;
ktime_t prev = dbg->begin;
dbg->begin = ktime_get();
if (dbg->is_valid_period) {
/* encoding period */
div = (u64)ktime_us_delta(dbg->begin, prev);
do_div(div, 100);
period = (u32)div;
dbg->min_period = min(period, dbg->min_period);
dbg->max_period = max(period, dbg->max_period);
dbg->total_period += period;
dbg->cnt_period++;
/*
* minimum and maximum bitrates are based on the
* encoding period values upon a window of 32 samples
*/
dbg->window_duration += period;
dbg->cnt_window++;
if (dbg->cnt_window >= 32) {
/*
* bitrate in kbps = (size * 8 / 1000) /
* (duration / 10000)
* = size * 80 / duration
*/
if (dbg->window_duration > 0) {
div = (u64)dbg->window_stream_size * 80;
do_div(div, dbg->window_duration);
bitrate = (u32)div;
dbg->last_bitrate = bitrate;
dbg->min_bitrate = min(bitrate,
dbg->min_bitrate);
dbg->max_bitrate = max(bitrate,
dbg->max_bitrate);
}
dbg->window_stream_size = 0;
dbg->window_duration = 0;
dbg->cnt_window = 0;
}
}
/*
* filter sequences valid for performance:
* - begin/begin (no stream available) is an invalid sequence
* - begin/end is a valid sequence
*/
dbg->is_valid_period = false;
}
void hva_dbg_perf_end(struct hva_ctx *ctx, struct hva_stream *stream)
{
struct device *dev = ctx_to_dev(ctx);
u64 div;
u32 duration;
u32 bytesused;
u32 timestamp;
struct hva_ctx_dbg *dbg = &ctx->dbg;
ktime_t end = ktime_get();
/* stream bytesused and timestamp in us */
bytesused = vb2_get_plane_payload(&stream->vbuf.vb2_buf, 0);
div = stream->vbuf.vb2_buf.timestamp;
do_div(div, 1000);
timestamp = (u32)div;
/* encoding duration */
div = (u64)ktime_us_delta(end, dbg->begin);
dev_dbg(dev,
"%s perf stream[%d] dts=%d encoded using %d bytes in %d us",
ctx->name,
stream->vbuf.sequence,
timestamp,
bytesused, (u32)div);
do_div(div, 100);
duration = (u32)div;
dbg->min_duration = min(duration, dbg->min_duration);
dbg->max_duration = max(duration, dbg->max_duration);
dbg->total_duration += duration;
dbg->cnt_duration++;
/*
* the average bitrate is based on the total stream size
* and the total encoding periods
*/
dbg->total_stream_size += bytesused;
dbg->window_stream_size += bytesused;
dbg->is_valid_period = true;
}
static void hva_dbg_perf_compute(struct hva_ctx *ctx)
{
u64 div;
struct hva_ctx_dbg *dbg = &ctx->dbg;
if (dbg->cnt_duration > 0) {
div = (u64)dbg->total_duration;
do_div(div, dbg->cnt_duration);
dbg->avg_duration = (u32)div;
} else {
dbg->avg_duration = 0;
}
if (dbg->total_duration > 0) {
div = (u64)dbg->cnt_duration * 100000;
do_div(div, dbg->total_duration);
dbg->max_fps = (u32)div;
} else {
dbg->max_fps = 0;
}
if (dbg->cnt_period > 0) {
div = (u64)dbg->total_period;
do_div(div, dbg->cnt_period);
dbg->avg_period = (u32)div;
} else {
dbg->avg_period = 0;
}
if (dbg->total_period > 0) {
div = (u64)dbg->cnt_period * 100000;
do_div(div, dbg->total_period);
dbg->avg_fps = (u32)div;
} else {
dbg->avg_fps = 0;
}
if (dbg->total_period > 0) {
/*
* bitrate in kbps = (video size * 8 / 1000) /
* (video duration / 10000)
* = video size * 80 / video duration
*/
div = (u64)dbg->total_stream_size * 80;
do_div(div, dbg->total_period);
dbg->avg_bitrate = (u32)div;
} else {
dbg->avg_bitrate = 0;
}
}
/*
* device debug info
*/
static int device_show(struct seq_file *s, void *data)
{
struct hva_dev *hva = s->private;
seq_printf(s, "[%s]\n", hva->v4l2_dev.name);
seq_printf(s, "registered as /dev/video%d\n", hva->vdev->num);
return 0;
}
static int encoders_show(struct seq_file *s, void *data)
{
struct hva_dev *hva = s->private;
unsigned int i = 0;
seq_printf(s, "[encoders]\n|- %d registered encoders:\n",
hva->nb_of_encoders);
while (hva->encoders[i]) {
seq_printf(s, "|- %s: %4.4s => %4.4s\n", hva->encoders[i]->name,
(char *)&hva->encoders[i]->pixelformat,
(char *)&hva->encoders[i]->streamformat);
i++;
}
return 0;
}
static int last_show(struct seq_file *s, void *data)
{
struct hva_dev *hva = s->private;
struct hva_ctx *last_ctx = &hva->dbg.last_ctx;
if (last_ctx->flags & HVA_FLAG_STREAMINFO) {
seq_puts(s, "[last encoding]\n");
hva_dbg_perf_compute(last_ctx);
format_ctx(s, last_ctx);
} else {
seq_puts(s, "[no information recorded about last encoding]\n");
}
return 0;
}
static int regs_show(struct seq_file *s, void *data)
{
struct hva_dev *hva = s->private;
hva_hw_dump_regs(hva, s);
return 0;
}
#define hva_dbg_create_entry(name) \
debugfs_create_file(#name, 0444, hva->dbg.debugfs_entry, hva, \
&name##_fops)
DEFINE_SHOW_ATTRIBUTE(device);
DEFINE_SHOW_ATTRIBUTE(encoders);
DEFINE_SHOW_ATTRIBUTE(last);
DEFINE_SHOW_ATTRIBUTE(regs);
void hva_debugfs_create(struct hva_dev *hva)
{
hva->dbg.debugfs_entry = debugfs_create_dir(HVA_NAME, NULL);
hva_dbg_create_entry(device);
hva_dbg_create_entry(encoders);
hva_dbg_create_entry(last);
hva_dbg_create_entry(regs);
}
void hva_debugfs_remove(struct hva_dev *hva)
{
debugfs_remove_recursive(hva->dbg.debugfs_entry);
hva->dbg.debugfs_entry = NULL;
}
/*
* context (instance) debug info
*/
static int ctx_show(struct seq_file *s, void *data)
{
struct hva_ctx *ctx = s->private;
seq_printf(s, "[running encoding %d]\n", ctx->id);
hva_dbg_perf_compute(ctx);
format_ctx(s, ctx);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ctx);
void hva_dbg_ctx_create(struct hva_ctx *ctx)
{
struct hva_dev *hva = ctx->hva_dev;
char name[4] = "";
ctx->dbg.min_duration = UINT_MAX;
ctx->dbg.min_period = UINT_MAX;
ctx->dbg.min_bitrate = UINT_MAX;
snprintf(name, sizeof(name), "%d", hva->instance_id);
ctx->dbg.debugfs_entry = debugfs_create_file(name, 0444,
hva->dbg.debugfs_entry,
ctx, &ctx_fops);
}
void hva_dbg_ctx_remove(struct hva_ctx *ctx)
{
struct hva_dev *hva = ctx->hva_dev;
if (ctx->flags & HVA_FLAG_STREAMINFO)
/* save context before removing */
memcpy(&hva->dbg.last_ctx, ctx, sizeof(*ctx));
debugfs_remove(ctx->dbg.debugfs_entry);
}
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