blob: 68933d20806338629a89bdde9a5b05219ef2f5ac [file] [log] [blame]
/*
* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
* Copyright (C) 2017 Linaro Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that 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 <linux/clk.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <media/videobuf2-dma-sg.h>
#include <media/v4l2-mem2mem.h>
#include <asm/div64.h>
#include "core.h"
#include "helpers.h"
#include "hfi_helper.h"
struct intbuf {
struct list_head list;
u32 type;
size_t size;
void *va;
dma_addr_t da;
unsigned long attrs;
};
bool venus_helper_check_codec(struct venus_inst *inst, u32 v4l2_pixfmt)
{
struct venus_core *core = inst->core;
u32 session_type = inst->session_type;
u32 codec;
switch (v4l2_pixfmt) {
case V4L2_PIX_FMT_H264:
codec = HFI_VIDEO_CODEC_H264;
break;
case V4L2_PIX_FMT_H263:
codec = HFI_VIDEO_CODEC_H263;
break;
case V4L2_PIX_FMT_MPEG1:
codec = HFI_VIDEO_CODEC_MPEG1;
break;
case V4L2_PIX_FMT_MPEG2:
codec = HFI_VIDEO_CODEC_MPEG2;
break;
case V4L2_PIX_FMT_MPEG4:
codec = HFI_VIDEO_CODEC_MPEG4;
break;
case V4L2_PIX_FMT_VC1_ANNEX_G:
case V4L2_PIX_FMT_VC1_ANNEX_L:
codec = HFI_VIDEO_CODEC_VC1;
break;
case V4L2_PIX_FMT_VP8:
codec = HFI_VIDEO_CODEC_VP8;
break;
case V4L2_PIX_FMT_VP9:
codec = HFI_VIDEO_CODEC_VP9;
break;
case V4L2_PIX_FMT_XVID:
codec = HFI_VIDEO_CODEC_DIVX;
break;
default:
return false;
}
if (session_type == VIDC_SESSION_TYPE_ENC && core->enc_codecs & codec)
return true;
if (session_type == VIDC_SESSION_TYPE_DEC && core->dec_codecs & codec)
return true;
return false;
}
EXPORT_SYMBOL_GPL(venus_helper_check_codec);
static int intbufs_set_buffer(struct venus_inst *inst, u32 type)
{
struct venus_core *core = inst->core;
struct device *dev = core->dev;
struct hfi_buffer_requirements bufreq;
struct hfi_buffer_desc bd;
struct intbuf *buf;
unsigned int i;
int ret;
ret = venus_helper_get_bufreq(inst, type, &bufreq);
if (ret)
return 0;
if (!bufreq.size)
return 0;
for (i = 0; i < bufreq.count_actual; i++) {
buf = kzalloc(sizeof(*buf), GFP_KERNEL);
if (!buf) {
ret = -ENOMEM;
goto fail;
}
buf->type = bufreq.type;
buf->size = bufreq.size;
buf->attrs = DMA_ATTR_WRITE_COMBINE |
DMA_ATTR_NO_KERNEL_MAPPING;
buf->va = dma_alloc_attrs(dev, buf->size, &buf->da, GFP_KERNEL,
buf->attrs);
if (!buf->va) {
ret = -ENOMEM;
goto fail;
}
memset(&bd, 0, sizeof(bd));
bd.buffer_size = buf->size;
bd.buffer_type = buf->type;
bd.num_buffers = 1;
bd.device_addr = buf->da;
ret = hfi_session_set_buffers(inst, &bd);
if (ret) {
dev_err(dev, "set session buffers failed\n");
goto dma_free;
}
list_add_tail(&buf->list, &inst->internalbufs);
}
return 0;
dma_free:
dma_free_attrs(dev, buf->size, buf->va, buf->da, buf->attrs);
fail:
kfree(buf);
return ret;
}
static int intbufs_unset_buffers(struct venus_inst *inst)
{
struct hfi_buffer_desc bd = {0};
struct intbuf *buf, *n;
int ret = 0;
list_for_each_entry_safe(buf, n, &inst->internalbufs, list) {
bd.buffer_size = buf->size;
bd.buffer_type = buf->type;
bd.num_buffers = 1;
bd.device_addr = buf->da;
bd.response_required = true;
ret = hfi_session_unset_buffers(inst, &bd);
list_del_init(&buf->list);
dma_free_attrs(inst->core->dev, buf->size, buf->va, buf->da,
buf->attrs);
kfree(buf);
}
return ret;
}
static const unsigned int intbuf_types[] = {
HFI_BUFFER_INTERNAL_SCRATCH,
HFI_BUFFER_INTERNAL_SCRATCH_1,
HFI_BUFFER_INTERNAL_SCRATCH_2,
HFI_BUFFER_INTERNAL_PERSIST,
HFI_BUFFER_INTERNAL_PERSIST_1,
};
static int intbufs_alloc(struct venus_inst *inst)
{
unsigned int i;
int ret;
for (i = 0; i < ARRAY_SIZE(intbuf_types); i++) {
ret = intbufs_set_buffer(inst, intbuf_types[i]);
if (ret)
goto error;
}
return 0;
error:
intbufs_unset_buffers(inst);
return ret;
}
static int intbufs_free(struct venus_inst *inst)
{
return intbufs_unset_buffers(inst);
}
static u32 load_per_instance(struct venus_inst *inst)
{
u32 mbs;
if (!inst || !(inst->state >= INST_INIT && inst->state < INST_STOP))
return 0;
mbs = (ALIGN(inst->width, 16) / 16) * (ALIGN(inst->height, 16) / 16);
return mbs * inst->fps;
}
static u32 load_per_type(struct venus_core *core, u32 session_type)
{
struct venus_inst *inst = NULL;
u32 mbs_per_sec = 0;
mutex_lock(&core->lock);
list_for_each_entry(inst, &core->instances, list) {
if (inst->session_type != session_type)
continue;
mbs_per_sec += load_per_instance(inst);
}
mutex_unlock(&core->lock);
return mbs_per_sec;
}
static int load_scale_clocks(struct venus_core *core)
{
const struct freq_tbl *table = core->res->freq_tbl;
unsigned int num_rows = core->res->freq_tbl_size;
unsigned long freq = table[0].freq;
struct clk *clk = core->clks[0];
struct device *dev = core->dev;
u32 mbs_per_sec;
unsigned int i;
int ret;
mbs_per_sec = load_per_type(core, VIDC_SESSION_TYPE_ENC) +
load_per_type(core, VIDC_SESSION_TYPE_DEC);
if (mbs_per_sec > core->res->max_load)
dev_warn(dev, "HW is overloaded, needed: %d max: %d\n",
mbs_per_sec, core->res->max_load);
if (!mbs_per_sec && num_rows > 1) {
freq = table[num_rows - 1].freq;
goto set_freq;
}
for (i = 0; i < num_rows; i++) {
if (mbs_per_sec > table[i].load)
break;
freq = table[i].freq;
}
set_freq:
if (core->res->hfi_version == HFI_VERSION_3XX) {
ret = clk_set_rate(clk, freq);
ret |= clk_set_rate(core->core0_clk, freq);
ret |= clk_set_rate(core->core1_clk, freq);
} else {
ret = clk_set_rate(clk, freq);
}
if (ret) {
dev_err(dev, "failed to set clock rate %lu (%d)\n", freq, ret);
return ret;
}
return 0;
}
static void fill_buffer_desc(const struct venus_buffer *buf,
struct hfi_buffer_desc *bd, bool response)
{
memset(bd, 0, sizeof(*bd));
bd->buffer_type = HFI_BUFFER_OUTPUT;
bd->buffer_size = buf->size;
bd->num_buffers = 1;
bd->device_addr = buf->dma_addr;
bd->response_required = response;
}
static void return_buf_error(struct venus_inst *inst,
struct vb2_v4l2_buffer *vbuf)
{
struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
if (vbuf->vb2_buf.type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
v4l2_m2m_src_buf_remove_by_buf(m2m_ctx, vbuf);
else
v4l2_m2m_dst_buf_remove_by_buf(m2m_ctx, vbuf);
v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
}
static int
session_process_buf(struct venus_inst *inst, struct vb2_v4l2_buffer *vbuf)
{
struct venus_buffer *buf = to_venus_buffer(vbuf);
struct vb2_buffer *vb = &vbuf->vb2_buf;
unsigned int type = vb->type;
struct hfi_frame_data fdata;
int ret;
memset(&fdata, 0, sizeof(fdata));
fdata.alloc_len = buf->size;
fdata.device_addr = buf->dma_addr;
fdata.timestamp = vb->timestamp;
do_div(fdata.timestamp, NSEC_PER_USEC);
fdata.flags = 0;
fdata.clnt_data = vbuf->vb2_buf.index;
if (!fdata.timestamp)
fdata.flags |= HFI_BUFFERFLAG_TIMESTAMPINVALID;
if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
fdata.buffer_type = HFI_BUFFER_INPUT;
fdata.filled_len = vb2_get_plane_payload(vb, 0);
fdata.offset = vb->planes[0].data_offset;
if (vbuf->flags & V4L2_BUF_FLAG_LAST || !fdata.filled_len)
fdata.flags |= HFI_BUFFERFLAG_EOS;
} else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
fdata.buffer_type = HFI_BUFFER_OUTPUT;
fdata.filled_len = 0;
fdata.offset = 0;
}
ret = hfi_session_process_buf(inst, &fdata);
if (ret)
return ret;
return 0;
}
static inline int is_reg_unreg_needed(struct venus_inst *inst)
{
if (inst->session_type == VIDC_SESSION_TYPE_DEC &&
inst->core->res->hfi_version == HFI_VERSION_3XX)
return 0;
if (inst->session_type == VIDC_SESSION_TYPE_DEC &&
inst->cap_bufs_mode_dynamic &&
inst->core->res->hfi_version == HFI_VERSION_1XX)
return 0;
return 1;
}
static int session_unregister_bufs(struct venus_inst *inst)
{
struct venus_buffer *buf, *n;
struct hfi_buffer_desc bd;
int ret = 0;
if (!is_reg_unreg_needed(inst))
return 0;
list_for_each_entry_safe(buf, n, &inst->registeredbufs, reg_list) {
fill_buffer_desc(buf, &bd, true);
ret = hfi_session_unset_buffers(inst, &bd);
list_del_init(&buf->reg_list);
}
return ret;
}
static int session_register_bufs(struct venus_inst *inst)
{
struct venus_core *core = inst->core;
struct device *dev = core->dev;
struct hfi_buffer_desc bd;
struct venus_buffer *buf;
int ret = 0;
if (!is_reg_unreg_needed(inst))
return 0;
list_for_each_entry(buf, &inst->registeredbufs, reg_list) {
fill_buffer_desc(buf, &bd, false);
ret = hfi_session_set_buffers(inst, &bd);
if (ret) {
dev_err(dev, "%s: set buffer failed\n", __func__);
break;
}
}
return ret;
}
int venus_helper_get_bufreq(struct venus_inst *inst, u32 type,
struct hfi_buffer_requirements *req)
{
u32 ptype = HFI_PROPERTY_CONFIG_BUFFER_REQUIREMENTS;
union hfi_get_property hprop;
unsigned int i;
int ret;
if (req)
memset(req, 0, sizeof(*req));
ret = hfi_session_get_property(inst, ptype, &hprop);
if (ret)
return ret;
ret = -EINVAL;
for (i = 0; i < HFI_BUFFER_TYPE_MAX; i++) {
if (hprop.bufreq[i].type != type)
continue;
if (req)
memcpy(req, &hprop.bufreq[i], sizeof(*req));
ret = 0;
break;
}
return ret;
}
EXPORT_SYMBOL_GPL(venus_helper_get_bufreq);
int venus_helper_set_input_resolution(struct venus_inst *inst,
unsigned int width, unsigned int height)
{
u32 ptype = HFI_PROPERTY_PARAM_FRAME_SIZE;
struct hfi_framesize fs;
fs.buffer_type = HFI_BUFFER_INPUT;
fs.width = width;
fs.height = height;
return hfi_session_set_property(inst, ptype, &fs);
}
EXPORT_SYMBOL_GPL(venus_helper_set_input_resolution);
int venus_helper_set_output_resolution(struct venus_inst *inst,
unsigned int width, unsigned int height)
{
u32 ptype = HFI_PROPERTY_PARAM_FRAME_SIZE;
struct hfi_framesize fs;
fs.buffer_type = HFI_BUFFER_OUTPUT;
fs.width = width;
fs.height = height;
return hfi_session_set_property(inst, ptype, &fs);
}
EXPORT_SYMBOL_GPL(venus_helper_set_output_resolution);
int venus_helper_set_num_bufs(struct venus_inst *inst, unsigned int input_bufs,
unsigned int output_bufs)
{
u32 ptype = HFI_PROPERTY_PARAM_BUFFER_COUNT_ACTUAL;
struct hfi_buffer_count_actual buf_count;
int ret;
buf_count.type = HFI_BUFFER_INPUT;
buf_count.count_actual = input_bufs;
ret = hfi_session_set_property(inst, ptype, &buf_count);
if (ret)
return ret;
buf_count.type = HFI_BUFFER_OUTPUT;
buf_count.count_actual = output_bufs;
return hfi_session_set_property(inst, ptype, &buf_count);
}
EXPORT_SYMBOL_GPL(venus_helper_set_num_bufs);
int venus_helper_set_color_format(struct venus_inst *inst, u32 pixfmt)
{
struct hfi_uncompressed_format_select fmt;
u32 ptype = HFI_PROPERTY_PARAM_UNCOMPRESSED_FORMAT_SELECT;
int ret;
if (inst->session_type == VIDC_SESSION_TYPE_DEC)
fmt.buffer_type = HFI_BUFFER_OUTPUT;
else if (inst->session_type == VIDC_SESSION_TYPE_ENC)
fmt.buffer_type = HFI_BUFFER_INPUT;
else
return -EINVAL;
switch (pixfmt) {
case V4L2_PIX_FMT_NV12:
fmt.format = HFI_COLOR_FORMAT_NV12;
break;
case V4L2_PIX_FMT_NV21:
fmt.format = HFI_COLOR_FORMAT_NV21;
break;
default:
return -EINVAL;
}
ret = hfi_session_set_property(inst, ptype, &fmt);
if (ret)
return ret;
return 0;
}
EXPORT_SYMBOL_GPL(venus_helper_set_color_format);
static void delayed_process_buf_func(struct work_struct *work)
{
struct venus_buffer *buf, *n;
struct venus_inst *inst;
int ret;
inst = container_of(work, struct venus_inst, delayed_process_work);
mutex_lock(&inst->lock);
if (!(inst->streamon_out & inst->streamon_cap))
goto unlock;
list_for_each_entry_safe(buf, n, &inst->delayed_process, ref_list) {
if (buf->flags & HFI_BUFFERFLAG_READONLY)
continue;
ret = session_process_buf(inst, &buf->vb);
if (ret)
return_buf_error(inst, &buf->vb);
list_del_init(&buf->ref_list);
}
unlock:
mutex_unlock(&inst->lock);
}
void venus_helper_release_buf_ref(struct venus_inst *inst, unsigned int idx)
{
struct venus_buffer *buf;
list_for_each_entry(buf, &inst->registeredbufs, reg_list) {
if (buf->vb.vb2_buf.index == idx) {
buf->flags &= ~HFI_BUFFERFLAG_READONLY;
schedule_work(&inst->delayed_process_work);
break;
}
}
}
EXPORT_SYMBOL_GPL(venus_helper_release_buf_ref);
void venus_helper_acquire_buf_ref(struct vb2_v4l2_buffer *vbuf)
{
struct venus_buffer *buf = to_venus_buffer(vbuf);
buf->flags |= HFI_BUFFERFLAG_READONLY;
}
EXPORT_SYMBOL_GPL(venus_helper_acquire_buf_ref);
static int is_buf_refed(struct venus_inst *inst, struct vb2_v4l2_buffer *vbuf)
{
struct venus_buffer *buf = to_venus_buffer(vbuf);
if (buf->flags & HFI_BUFFERFLAG_READONLY) {
list_add_tail(&buf->ref_list, &inst->delayed_process);
schedule_work(&inst->delayed_process_work);
return 1;
}
return 0;
}
struct vb2_v4l2_buffer *
venus_helper_find_buf(struct venus_inst *inst, unsigned int type, u32 idx)
{
struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
return v4l2_m2m_src_buf_remove_by_idx(m2m_ctx, idx);
else
return v4l2_m2m_dst_buf_remove_by_idx(m2m_ctx, idx);
}
EXPORT_SYMBOL_GPL(venus_helper_find_buf);
int venus_helper_vb2_buf_init(struct vb2_buffer *vb)
{
struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct venus_buffer *buf = to_venus_buffer(vbuf);
struct sg_table *sgt;
sgt = vb2_dma_sg_plane_desc(vb, 0);
if (!sgt)
return -EFAULT;
buf->size = vb2_plane_size(vb, 0);
buf->dma_addr = sg_dma_address(sgt->sgl);
if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
list_add_tail(&buf->reg_list, &inst->registeredbufs);
return 0;
}
EXPORT_SYMBOL_GPL(venus_helper_vb2_buf_init);
int venus_helper_vb2_buf_prepare(struct vb2_buffer *vb)
{
struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
vb2_plane_size(vb, 0) < inst->output_buf_size)
return -EINVAL;
if (vb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
vb2_plane_size(vb, 0) < inst->input_buf_size)
return -EINVAL;
return 0;
}
EXPORT_SYMBOL_GPL(venus_helper_vb2_buf_prepare);
void venus_helper_vb2_buf_queue(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
int ret;
mutex_lock(&inst->lock);
if (inst->cmd_stop) {
vbuf->flags |= V4L2_BUF_FLAG_LAST;
v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
inst->cmd_stop = false;
goto unlock;
}
v4l2_m2m_buf_queue(m2m_ctx, vbuf);
if (!(inst->streamon_out & inst->streamon_cap))
goto unlock;
ret = is_buf_refed(inst, vbuf);
if (ret)
goto unlock;
ret = session_process_buf(inst, vbuf);
if (ret)
return_buf_error(inst, vbuf);
unlock:
mutex_unlock(&inst->lock);
}
EXPORT_SYMBOL_GPL(venus_helper_vb2_buf_queue);
void venus_helper_buffers_done(struct venus_inst *inst,
enum vb2_buffer_state state)
{
struct vb2_v4l2_buffer *buf;
while ((buf = v4l2_m2m_src_buf_remove(inst->m2m_ctx)))
v4l2_m2m_buf_done(buf, state);
while ((buf = v4l2_m2m_dst_buf_remove(inst->m2m_ctx)))
v4l2_m2m_buf_done(buf, state);
}
EXPORT_SYMBOL_GPL(venus_helper_buffers_done);
void venus_helper_vb2_stop_streaming(struct vb2_queue *q)
{
struct venus_inst *inst = vb2_get_drv_priv(q);
struct venus_core *core = inst->core;
int ret;
mutex_lock(&inst->lock);
if (inst->streamon_out & inst->streamon_cap) {
ret = hfi_session_stop(inst);
ret |= hfi_session_unload_res(inst);
ret |= session_unregister_bufs(inst);
ret |= intbufs_free(inst);
ret |= hfi_session_deinit(inst);
if (inst->session_error || core->sys_error)
ret = -EIO;
if (ret)
hfi_session_abort(inst);
load_scale_clocks(core);
}
venus_helper_buffers_done(inst, VB2_BUF_STATE_ERROR);
if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
inst->streamon_out = 0;
else
inst->streamon_cap = 0;
mutex_unlock(&inst->lock);
}
EXPORT_SYMBOL_GPL(venus_helper_vb2_stop_streaming);
int venus_helper_vb2_start_streaming(struct venus_inst *inst)
{
struct venus_core *core = inst->core;
int ret;
ret = intbufs_alloc(inst);
if (ret)
return ret;
ret = session_register_bufs(inst);
if (ret)
goto err_bufs_free;
load_scale_clocks(core);
ret = hfi_session_load_res(inst);
if (ret)
goto err_unreg_bufs;
ret = hfi_session_start(inst);
if (ret)
goto err_unload_res;
return 0;
err_unload_res:
hfi_session_unload_res(inst);
err_unreg_bufs:
session_unregister_bufs(inst);
err_bufs_free:
intbufs_free(inst);
return ret;
}
EXPORT_SYMBOL_GPL(venus_helper_vb2_start_streaming);
void venus_helper_m2m_device_run(void *priv)
{
struct venus_inst *inst = priv;
struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
struct v4l2_m2m_buffer *buf, *n;
int ret;
mutex_lock(&inst->lock);
v4l2_m2m_for_each_dst_buf_safe(m2m_ctx, buf, n) {
ret = session_process_buf(inst, &buf->vb);
if (ret)
return_buf_error(inst, &buf->vb);
}
v4l2_m2m_for_each_src_buf_safe(m2m_ctx, buf, n) {
ret = session_process_buf(inst, &buf->vb);
if (ret)
return_buf_error(inst, &buf->vb);
}
mutex_unlock(&inst->lock);
}
EXPORT_SYMBOL_GPL(venus_helper_m2m_device_run);
void venus_helper_m2m_job_abort(void *priv)
{
struct venus_inst *inst = priv;
v4l2_m2m_job_finish(inst->m2m_dev, inst->m2m_ctx);
}
EXPORT_SYMBOL_GPL(venus_helper_m2m_job_abort);
void venus_helper_init_instance(struct venus_inst *inst)
{
if (inst->session_type == VIDC_SESSION_TYPE_DEC) {
INIT_LIST_HEAD(&inst->delayed_process);
INIT_WORK(&inst->delayed_process_work,
delayed_process_buf_func);
}
}
EXPORT_SYMBOL_GPL(venus_helper_init_instance);