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Date:   Tue, 2 Nov 2021 11:47:24 +0100
From:   Dafna Hirschfeld <dafna.hirschfeld@...labora.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     linux-media@...r.kernel.org,
        Robert Beckett <bob.beckett@...labora.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "open list:STAGING SUBSYSTEM" <linux-staging@...ts.linux.dev>,
        open list <linux-kernel@...r.kernel.org>,
        laurent.pinchart@...asonboard.com, hverkuil@...all.nl,
        kernel@...labora.com, dafna3@...il.com,
        kiril.bicevski@...labora.com,
        Nas Chung <nas.chung@...psnmedia.com>,
        lafley.kim@...psnmedia.com, scott.woo@...psnmedia.com,
        olivier.crete@...labora.com
Subject: Re: [PATCH v2 1/6] staging: media: wave5: Add vpuapi layer

Hi,

On 13.10.21 17:50, Dan Carpenter wrote:
> This is much better than before, but there is still a way to go.
> 
> See below for details.
> 
> regards,
> dan carpenter
> 
> 
> On Wed, Oct 13, 2021 at 12:56:04PM +0200, Dafna Hirschfeld wrote:
>> Add the vpuapi layer of the wave5 codec driver.
>> This layer is used to configure the hardware according
>> to the parameters.
>>
>> Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@...labora.com>
>> Signed-off-by: Robert Beckett <bob.beckett@...labora.com>
>> ---
>>   drivers/staging/media/wave5/vpuapi.c          | 1096 +++++
>>   drivers/staging/media/wave5/vpuapi.h          | 1148 ++++++
>>   drivers/staging/media/wave5/vpuconfig.h       |   85 +
>>   drivers/staging/media/wave5/vpuerror.h        |  455 +++
>>   drivers/staging/media/wave5/wave5-hw.c        | 3513 +++++++++++++++++
>>   drivers/staging/media/wave5/wave5.h           |   80 +
>>   drivers/staging/media/wave5/wave5_regdefine.h |  638 +++
>>   7 files changed, 7015 insertions(+)
>>   create mode 100644 drivers/staging/media/wave5/vpuapi.c
>>   create mode 100644 drivers/staging/media/wave5/vpuapi.h
>>   create mode 100644 drivers/staging/media/wave5/vpuconfig.h
>>   create mode 100644 drivers/staging/media/wave5/vpuerror.h
>>   create mode 100644 drivers/staging/media/wave5/wave5-hw.c
>>   create mode 100644 drivers/staging/media/wave5/wave5.h
>>   create mode 100644 drivers/staging/media/wave5/wave5_regdefine.h
>>
>> diff --git a/drivers/staging/media/wave5/vpuapi.c b/drivers/staging/media/wave5/vpuapi.c
>> new file mode 100644
>> index 000000000000..0e95eaa4b185
>> --- /dev/null
>> +++ b/drivers/staging/media/wave5/vpuapi.c
>> @@ -0,0 +1,1096 @@
>> +// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
>> +/*
>> + * Wave5 series multi-standard codec IP - helper functions
>> + *
>> + * Copyright (C) 2021 CHIPS&MEDIA INC
>> + */
>> +
>> +#include <linux/bug.h>
>> +#include "vpuapi.h"
>> +#include "wave5_regdefine.h"
>> +#include "wave5.h"
>> +
>> +#define DECODE_ALL_TEMPORAL_LAYERS -1
>> +#define DECODE_ALL_SPATIAL_LAYERS -1
>> +
>> +void wave5_vpu_clear_interrupt_ex(struct vpu_instance *inst, int32_t intr_flag)
>> +{
>> +	wave5_vpu_clear_interrupt(inst, intr_flag);
>> +}
>> +
>> +static int wave5_initialize_vpu(struct device *dev, const uint16_t *code, uint32_t size)
>> +{
>> +	int ret;
>> +	struct vpu_device *vpu_dev = (struct vpu_device *)dev_get_drvdata(dev);
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	if (wave5_vpu_is_init(vpu_dev)) {
>> +		wave5_vpu_re_init(dev, (void *)code, size);
> 
> This cast is just to get rid of the const.  "code" here is a uint16_t
> pointer but in wave5_vpu_re_init() it's a u8 pointer.  I think it should
> be const u8 everywhere.
> 
> Also use u8/u16 types instead of uint8/16_t unless it's something that's
> shared with user space.
> 
>> +		ret = -EBUSY;
>> +		goto err_out;
>> +	}
>> +
>> +	ret = wave5_vpu_reset(dev, SW_RESET_ON_BOOT);
>> +	if (ret)
>> +		goto err_out;
>> +
>> +	ret = wave5_vpu_init(dev, (void *)code, size);
>> +
>> +err_out:
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_init_with_bitcode(struct device *dev, const uint16_t *code, uint32_t size)
>> +{
>> +	if (!code || size == 0)
>> +		return -EINVAL;
>> +
>> +	return wave5_initialize_vpu(dev, code, size);
>> +}
>> +
>> +int wave5_vpu_get_version_info(struct device *dev, uint32_t *version_info,
>> +			       u32 *revision, uint32_t *product_id)
>> +{
>> +	int ret;
>> +	struct vpu_device *vpu_dev = (struct vpu_device *)dev_get_drvdata(dev);
> 
> No need for this cast.  (Get rid of as much casting as you can).
> 
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	if (!wave5_vpu_is_init(vpu_dev)) {
>> +		ret = -EINVAL;
>> +		goto err_out;
>> +	}
>> +
>> +	if (product_id)
>> +		*product_id = vpu_dev->product;
>> +	ret = wave5_vpu_get_version(vpu_dev, version_info, revision);
>> +
>> +err_out:
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +	return ret;
>> +}
>> +
>> +static int wave5_check_dec_open_param(struct vpu_device *dev, struct dec_open_param *param)
> 
> What does the "dec" mean in the name?

'dec' stands for'decoder'

> 
>> +{
>> +	struct vpu_attr *p_attr;
>> +
>> +	if (!param)
> 
> Hopefully we can delete this condition.
> 
>> +		return -EINVAL;
>> +
>> +	p_attr = &dev->attr;
>> +
>> +	if (param->bitstream_buffer % 8)
>> +		return -EINVAL;
>> +
>> +	if (param->bitstream_mode == BS_MODE_INTERRUPT &&
>> +	    (param->bitstream_buffer_size % 1024 || param->bitstream_buffer_size < 1024))
>> +		return -EINVAL;
>> +
>> +	if (!(BIT(param->bitstream_mode) & p_attr->support_bitstream_mode))
>> +		return -EINVAL;
>> +
>> +	if (!(BIT(param->frame_endian) & p_attr->support_endian_mask))
>> +		return -EINVAL;
>> +
>> +	if (!(BIT(param->stream_endian) & p_attr->support_endian_mask))
>> +		return -EINVAL;
>> +
>> +	return 0;
>> +}
>> +
>> +int wave5_vpu_dec_open_api(struct vpu_instance *vpu_inst, struct dec_open_param *pop)
> 
> What does the _api() mean?  This doesn't match the close function.
> Probably just get rid of the _api and call it wave5_vpu_dec_open().
> 
>> +{
>> +	struct dec_info *p_dec_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = vpu_inst->dev;
>> +
>> +	ret = wave5_check_dec_open_param(vpu_dev, pop);
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	if (!wave5_vpu_is_init(vpu_dev)) {
>> +		ret = -ENODEV;
>> +		goto err_out;
>> +	}
>> +
>> +	vpu_inst->codec_info = kzalloc(sizeof(*vpu_inst->codec_info), GFP_KERNEL);
>> +	if (!vpu_inst->codec_info) {
>> +		ret = -ENOMEM;
>> +		goto err_out;
>> +	}
>> +
>> +	vpu_inst->id = ida_alloc_max(&vpu_inst->dev->inst_ida, MAX_NUM_INSTANCE - 1, GFP_KERNEL);
>> +	if (vpu_inst->id < 0) {
>> +		dev_warn(vpu_inst->dev->dev, "unable to allocate instance ID: %d\n", vpu_inst->id);
>> +		ret = vpu_inst->id;
>> +		goto err_out;
>> +	}
>> +	p_dec_info = &vpu_inst->codec_info->dec_info;
>> +	memcpy((void *)&p_dec_info->open_param, pop, sizeof(struct dec_open_param));
> 
> This cast is not required (hopefully).
> 
>> +
>> +	if (vpu_inst->std == STD_UNKNOWN) {
>> +		ret = -EINVAL;
>> +		goto err_out;
>> +	}
>> +
>> +	p_dec_info->stream_wr_ptr = pop->bitstream_buffer;
>> +	p_dec_info->stream_rd_ptr = pop->bitstream_buffer;
>> +	p_dec_info->stream_buf_start_addr = pop->bitstream_buffer;
>> +	p_dec_info->stream_buf_size = pop->bitstream_buffer_size;
>> +	p_dec_info->stream_buf_end_addr = pop->bitstream_buffer + pop->bitstream_buffer_size;
>> +	p_dec_info->reorder_enable = TRUE;
>> +	p_dec_info->mirror_direction = MIRDIR_NONE;
>> +	p_dec_info->temp_id_select_mode = TEMPORAL_ID_MODE_ABSOLUTE;
>> +	p_dec_info->target_temp_id = DECODE_ALL_TEMPORAL_LAYERS;
>> +	p_dec_info->target_spatial_id = DECODE_ALL_SPATIAL_LAYERS;
>> +
>> +	ret = wave5_vpu_build_up_dec_param(vpu_inst, pop);
>> +	if (ret)
>> +		goto err_out;
>> +
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return 0;
>> +
>> +err_out:
>> +	if (vpu_inst->id >= 0)
>> +		ida_free(&vpu_inst->dev->inst_ida, vpu_inst->id);
>> +	kfree(vpu_inst->codec_info);
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_dec_close(struct vpu_instance *inst, u32 *fail_res)
>> +{
>> +	struct dec_info *p_dec_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +	int i;
>> +	*fail_res = 0;
> 
> Add a blank line after the declaration block.
> 
>> +
>> +	if (!inst->codec_info)
>> +		return -EINVAL;
>> +	p_dec_info = &inst->codec_info->dec_info;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = wave5_vpu_dec_fini_seq(inst, fail_res);
>> +	if (ret) {
>> +		dev_warn(inst->dev->dev, "dec sec end timed out\n");
>> +
>> +		if (*fail_res == WAVE5_SYSERR_VPU_STILL_RUNNING) {
>> +			mutex_unlock(&vpu_dev->hw_lock);
>> +			return ret;
>> +		}
>> +	}
>> +
>> +	dev_dbg(inst->dev->dev, "dec seq end complete\n");
>> +
>> +	if (p_dec_info->vb_work.size)
>> +		wave5_vdi_free_dma_memory(vpu_dev, &p_dec_info->vb_work);
>> +
>> +	for (i = 0 ; i < MAX_REG_FRAME; i++) {
>> +		if (p_dec_info->vb_mv[i].size)
>> +			wave5_vdi_free_dma_memory(vpu_dev, &p_dec_info->vb_mv[i]);
>> +		if (p_dec_info->vb_fbc_y_tbl[i].size)
>> +			wave5_vdi_free_dma_memory(vpu_dev, &p_dec_info->vb_fbc_y_tbl[i]);
>> +		if (p_dec_info->vb_fbc_c_tbl[i].size)
>> +			wave5_vdi_free_dma_memory(vpu_dev, &p_dec_info->vb_fbc_c_tbl[i]);
>> +	}
>> +
>> +	if (p_dec_info->vb_task.size)
>> +		wave5_vdi_free_dma_memory(vpu_dev, &p_dec_info->vb_task);
>> +
>> +	ida_free(&inst->dev->inst_ida, inst->id);
>> +
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	kfree(inst->codec_info);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_dec_issue_seq_init(struct vpu_instance *inst)
>> +{
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = wave5_vpu_dec_init_seq(inst);
>> +
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_dec_complete_seq_init(struct vpu_instance *inst, struct dec_initial_info *info)
>> +{
>> +	struct dec_info *p_dec_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +
>> +	if (!info)
>> +		return -EINVAL;
>> +
>> +	p_dec_info = &inst->codec_info->dec_info;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = wave5_vpu_dec_get_seq_info(inst, info);
>> +	if (!ret)
>> +		p_dec_info->initial_info_obtained = 1;
>> +
>> +	info->rd_ptr = wave5_vpu_dec_get_rd_ptr(inst);
>> +	info->wr_ptr = p_dec_info->stream_wr_ptr;
>> +
>> +	p_dec_info->initial_info = *info;
>> +
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_dec_register_frame_buffer_ex(struct vpu_instance *inst,
>> +					   int num_fbs_for_decoding, int num_fbs_for_wtl,
>> +					 int stride, int height, int map_type)
>> +{
>> +	struct dec_info *p_dec_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +	struct frame_buffer *fb;
>> +
>> +	if (num_fbs_for_decoding > WAVE5_MAX_FBS)
>> +		return -EINVAL;
>> +
>> +	if (num_fbs_for_wtl > WAVE5_MAX_FBS)
>> +		return -EINVAL;
>> +
>> +	p_dec_info = &inst->codec_info->dec_info;
>> +	p_dec_info->num_fbs_for_decoding = num_fbs_for_decoding;
>> +	p_dec_info->num_fbs_for_wtl = num_fbs_for_wtl;
>> +	p_dec_info->stride = stride;
>> +
>> +	if (!p_dec_info->initial_info_obtained)
>> +		return -EINVAL;
>> +
>> +	if (stride < p_dec_info->initial_info.pic_width || (stride % 8 != 0) ||
>> +	    height < p_dec_info->initial_info.pic_height)
>> +		return -EINVAL;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	fb = inst->frame_buf;
>> +	ret = wave5_vpu_dec_register_framebuffer(inst, &fb[p_dec_info->num_fbs_for_decoding],
>> +						 LINEAR_FRAME_MAP, p_dec_info->num_fbs_for_wtl);
>> +	if (ret)
>> +		goto err_out;
>> +
>> +	ret = wave5_vpu_dec_register_framebuffer(inst, &fb[0], COMPRESSED_FRAME_MAP,
>> +						 p_dec_info->num_fbs_for_decoding);
>> +
>> +err_out:
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_dec_get_bitstream_buffer(struct vpu_instance *inst, dma_addr_t *prd_ptr,
>> +				       dma_addr_t *pwr_ptr, uint32_t *size)
>> +{
>> +	struct dec_info *p_dec_info;
>> +	dma_addr_t rd_ptr;
>> +	dma_addr_t wr_ptr;
>> +	dma_addr_t temp_ptr;
>> +	int room;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +	int ret;
>> +
>> +	p_dec_info = &inst->codec_info->dec_info;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +	rd_ptr = wave5_vpu_dec_get_rd_ptr(inst);
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	wr_ptr = p_dec_info->stream_wr_ptr;
>> +
>> +	temp_ptr = rd_ptr;
>> +
>> +	if (p_dec_info->open_param.bitstream_mode != BS_MODE_PIC_END) {
>> +		if (wr_ptr < temp_ptr)
>> +			room = temp_ptr - wr_ptr;
>> +		else
>> +			room = (p_dec_info->stream_buf_end_addr - wr_ptr) +
>> +				(temp_ptr - p_dec_info->stream_buf_start_addr);
>> +		room--;
>> +	} else {
>> +		room = (p_dec_info->stream_buf_end_addr - wr_ptr);
>> +	}
>> +
>> +	if (prd_ptr)
>> +		*prd_ptr = temp_ptr;
>> +	if (pwr_ptr)
>> +		*pwr_ptr = wr_ptr;
>> +	if (size)
>> +		*size = room;
>> +
>> +	return 0;
>> +}
>> +
>> +int wave5_vpu_dec_update_bitstream_buffer(struct vpu_instance *inst, int size)
>> +{
>> +	struct dec_info *p_dec_info;
>> +	dma_addr_t wr_ptr;
>> +	dma_addr_t rd_ptr;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +
>> +	if (!inst->codec_info)
>> +		return -EINVAL;
>> +
>> +	p_dec_info = &inst->codec_info->dec_info;
>> +	wr_ptr = p_dec_info->stream_wr_ptr;
>> +	rd_ptr = p_dec_info->stream_rd_ptr;
>> +
>> +	if (size > 0) {
>> +		if (wr_ptr < rd_ptr && rd_ptr <= wr_ptr + size)
>> +			return -EINVAL;
>> +
>> +		wr_ptr += size;
>> +
>> +		if (p_dec_info->open_param.bitstream_mode != BS_MODE_PIC_END) {
>> +			if (wr_ptr > p_dec_info->stream_buf_end_addr) {
>> +				u32 room = wr_ptr - p_dec_info->stream_buf_end_addr;
>> +
>> +				wr_ptr = p_dec_info->stream_buf_start_addr;
>> +				wr_ptr += room;
>> +			} else if (wr_ptr == p_dec_info->stream_buf_end_addr) {
>> +				wr_ptr = p_dec_info->stream_buf_start_addr;
>> +			}
>> +		}
>> +
>> +		p_dec_info->stream_wr_ptr = wr_ptr;
>> +		p_dec_info->stream_rd_ptr = rd_ptr;
>> +	}
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +	ret = wave5_vpu_dec_set_bitstream_flag(inst, (size == 0));
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_dec_start_one_frame(struct vpu_instance *inst, struct dec_param *param, u32 *res_fail)
>> +{
>> +	struct dec_info *p_dec_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +
>> +	p_dec_info = &inst->codec_info->dec_info;
>> +
>> +	if (p_dec_info->stride == 0) // this means frame buffers have not been registered.
>> +		return -EINVAL;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	p_dec_info->frame_start_pos = p_dec_info->stream_rd_ptr;
>> +
>> +	ret = wave5_vpu_decode(inst, param, res_fail);
>> +
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_dec_get_output_info(struct vpu_instance *inst, struct dec_output_info *info)
>> +{
>> +	struct dec_info *p_dec_info;
>> +	int ret;
>> +	struct vpu_rect rect_info;
>> +	u32 val;
>> +	s32 decoded_index;
>> +	s32 disp_idx;
>> +	u32 max_dec_index;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +
>> +	if (!info)
>> +		return -EINVAL;
>> +
>> +	p_dec_info = &inst->codec_info->dec_info;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	memset(info, 0, sizeof(*info));
>> +
>> +	ret = wave5_vpu_dec_get_result(inst, info);
>> +	if (ret) {
>> +		info->rd_ptr = p_dec_info->stream_rd_ptr;
>> +		info->wr_ptr = p_dec_info->stream_wr_ptr;
>> +		goto err_out;
>> +	}
>> +
>> +	decoded_index = info->index_frame_decoded;
>> +
>> +	// calculate display frame region
>> +	val = 0;
>> +	if (decoded_index >= 0 && decoded_index < WAVE5_MAX_FBS) {
>> +		//default value
>> +		rect_info.left = 0;
>> +		rect_info.right = info->dec_pic_width;
>> +		rect_info.top = 0;
>> +		rect_info.bottom = info->dec_pic_height;
>> +
>> +		if (inst->std == W_HEVC_DEC || inst->std == W_AVC_DEC)
>> +			rect_info = p_dec_info->initial_info.pic_crop_rect;
>> +
>> +		if (inst->std == W_HEVC_DEC)
>> +			p_dec_info->dec_out_info[decoded_index].decoded_poc = info->decoded_poc;
>> +
>> +		if (inst->std == W_AVS2_DEC)
>> +			p_dec_info->dec_out_info[decoded_index].avs2_info.decoded_poi =
>> +				info->avs2_info.decoded_poi;
>> +
>> +		info->rc_decoded.left = rect_info.left;
>> +		p_dec_info->dec_out_info[decoded_index].rc_decoded.left = rect_info.left;
>> +		info->rc_decoded.right = rect_info.right;
>> +		p_dec_info->dec_out_info[decoded_index].rc_decoded.right = rect_info.right;
>> +		info->rc_decoded.top = rect_info.top;
>> +		p_dec_info->dec_out_info[decoded_index].rc_decoded.top = rect_info.top;
>> +		info->rc_decoded.bottom = rect_info.bottom;
>> +		p_dec_info->dec_out_info[decoded_index].rc_decoded.bottom = rect_info.bottom;
>> +	} else {
>> +		info->rc_decoded.left = 0;
>> +		info->rc_decoded.right = info->dec_pic_width;
>> +		info->rc_decoded.top = 0;
>> +		info->rc_decoded.bottom = info->dec_pic_height;
>> +	}
>> +
>> +	disp_idx = info->index_frame_display;
>> +	if (info->index_frame_display >= 0 && info->index_frame_display < WAVE5_MAX_FBS) {
>> +		if (p_dec_info->rotation_enable) {
>> +			switch (p_dec_info->rotation_angle) {
>> +			case 90:
>> +				info->rc_display.left =
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.top;
>> +				info->rc_display.right =
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.bottom;
>> +				info->rc_display.top =
>> +					p_dec_info->dec_out_info[disp_idx].dec_pic_width -
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.right;
>> +					info->rc_display.bottom =
>> +						p_dec_info->dec_out_info[disp_idx].dec_pic_width -
>> +						p_dec_info->dec_out_info[disp_idx].rc_decoded.left;
>> +				break;
>> +			case 270:
>> +				info->rc_display.left =
>> +					p_dec_info->dec_out_info[disp_idx].dec_pic_height -
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.bottom;
>> +				info->rc_display.right =
>> +					p_dec_info->dec_out_info[disp_idx].dec_pic_height -
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.top;
>> +				info->rc_display.top =
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.left;
>> +				info->rc_display.bottom =
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.right;
>> +				break;
>> +			case 180:
>> +				info->rc_display.left =
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.left;
>> +				info->rc_display.right =
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.right;
>> +				info->rc_display.top =
>> +					p_dec_info->dec_out_info[disp_idx].dec_pic_height -
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.bottom;
>> +				info->rc_display.bottom =
>> +					p_dec_info->dec_out_info[disp_idx].dec_pic_height -
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.top;
>> +				break;
>> +			default:
>> +				info->rc_display.left =
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.left;
>> +				info->rc_display.right =
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.right;
>> +				info->rc_display.top =
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.top;
>> +				info->rc_display.bottom =
>> +					p_dec_info->dec_out_info[disp_idx].rc_decoded.bottom;
>> +				break;
>> +			}
>> +
>> +		} else {
>> +			info->rc_display.left = p_dec_info->dec_out_info[disp_idx].rc_decoded.left;
>> +			info->rc_display.right = p_dec_info->dec_out_info[disp_idx].rc_decoded.right;
>> +			info->rc_display.top = p_dec_info->dec_out_info[disp_idx].rc_decoded.top;
>> +			info->rc_display.bottom = p_dec_info->dec_out_info[disp_idx].rc_decoded.bottom;
>> +		}
>> +
>> +		if (p_dec_info->mirror_enable) {
>> +			u32 temp;
>> +			u32 width = (p_dec_info->rotation_angle == 90 ||
>> +					p_dec_info->rotation_angle == 270) ? info->dec_pic_height :
>> +				info->dec_pic_width;
>> +			u32 height = (p_dec_info->rotation_angle == 90 ||
>> +					p_dec_info->rotation_angle == 270) ? info->dec_pic_width :
>> +				info->dec_pic_height;
>> +
>> +			if (p_dec_info->mirror_direction & MIRDIR_VER) {
>> +				temp = info->rc_display.top;
>> +				info->rc_display.top = height - info->rc_display.bottom;
>> +				info->rc_display.bottom = height - temp;
>> +			}
>> +			if (p_dec_info->mirror_direction & MIRDIR_HOR) {
>> +				temp = info->rc_display.left;
>> +				info->rc_display.left = width - info->rc_display.right;
>> +				info->rc_display.right = width - temp;
>> +			}
>> +		}
>> +
>> +		switch (inst->std) {
>> +		case W_HEVC_DEC:
>> +			info->display_poc = p_dec_info->dec_out_info[disp_idx].decoded_poc;
>> +			break;
>> +		case W_AVS2_DEC:
>> +			info->avs2_info.display_poi = p_dec_info->dec_out_info[disp_idx].avs2_info.decoded_poi;
>> +			break;
>> +		case W_AVC_DEC:
>> +			info->display_poc = p_dec_info->dec_out_info[disp_idx].decoded_poc;
>> +			break;
>> +		default:
>> +			break;
>> +		}
>> +
>> +		if (info->index_frame_display == info->index_frame_decoded) {
>> +			info->disp_pic_width = info->dec_pic_width;
>> +			info->disp_pic_height = info->dec_pic_height;
>> +		} else {
>> +			/*
>> +			 * when index_frame_decoded < 0, and index_frame_display >= 0
>> +			 * info->dec_pic_width and info->dec_pic_height are still valid
>> +			 * but those of p_dec_info->dec_out_info[disp_idx] are invalid in VP9
>> +			 */
>> +			info->disp_pic_width = p_dec_info->dec_out_info[disp_idx].dec_pic_width;
>> +			info->disp_pic_height = p_dec_info->dec_out_info[disp_idx].dec_pic_height;
>> +		}
>> +
>> +	} else {
>> +		info->rc_display.left = 0;
>> +		info->rc_display.right = 0;
>> +		info->rc_display.top = 0;
>> +		info->rc_display.bottom = 0;
>> +
>> +		if (p_dec_info->rotation_enable || p_dec_info->mirror_enable ||
>> +		    p_dec_info->dering_enable) {
>> +			info->disp_pic_width = info->dec_pic_width;
>> +			info->disp_pic_height = info->dec_pic_height;
>> +		} else {
>> +			info->disp_pic_width = 0;
>> +			info->disp_pic_height = 0;
>> +		}
>> +	}
>> +
>> +	p_dec_info->stream_rd_ptr = wave5_vpu_dec_get_rd_ptr(inst);
>> +	p_dec_info->frame_display_flag = vpu_read_reg(vpu_dev, W5_RET_DEC_DISP_IDC);
>> +	if (inst->std == W_VP9_DEC)
>> +		p_dec_info->frame_display_flag &= 0xFFFF;
>> +	p_dec_info->frame_end_pos = p_dec_info->stream_rd_ptr;
>> +
>> +	if (p_dec_info->frame_end_pos < p_dec_info->frame_start_pos)
>> +		info->consumed_byte = p_dec_info->frame_end_pos + p_dec_info->stream_buf_size -
>> +			p_dec_info->frame_start_pos;
>> +	else
>> +		info->consumed_byte = p_dec_info->frame_end_pos - p_dec_info->frame_start_pos;
>> +
>> +	if (p_dec_info->dering_enable || p_dec_info->mirror_enable || p_dec_info->rotation_enable) {
>> +		info->disp_frame = p_dec_info->rotator_output;
>> +		info->disp_frame.stride = p_dec_info->rotator_stride;
>> +	} else {
>> +		val = p_dec_info->num_fbs_for_decoding; //fb_offset
>> +
>> +		max_dec_index = (p_dec_info->num_fbs_for_decoding > p_dec_info->num_fbs_for_wtl) ?
>> +			p_dec_info->num_fbs_for_decoding : p_dec_info->num_fbs_for_wtl;
>> +
>> +		if (info->index_frame_display >= 0 && info->index_frame_display < (int)max_dec_index)
>> +			info->disp_frame = inst->frame_buf[val + info->index_frame_display];
>> +	}
>> +
>> +	info->rd_ptr = p_dec_info->stream_rd_ptr;
>> +	info->wr_ptr = p_dec_info->stream_wr_ptr;
>> +	info->frame_display_flag = p_dec_info->frame_display_flag;
>> +
>> +	info->sequence_no = p_dec_info->initial_info.sequence_no;
>> +	if (decoded_index >= 0 && decoded_index < WAVE5_MAX_FBS)
>> +		p_dec_info->dec_out_info[decoded_index] = *info;
>> +
>> +	if (disp_idx >= 0 && disp_idx < WAVE5_MAX_FBS) {
>> +		info->num_of_tot_m_bs_in_disp = p_dec_info->dec_out_info[disp_idx].num_of_tot_m_bs;
>> +		info->num_of_err_m_bs_in_disp = p_dec_info->dec_out_info[disp_idx].num_of_err_m_bs;
>> +		info->disp_frame.sequence_no = info->sequence_no;
>> +	} else {
>> +		info->num_of_tot_m_bs_in_disp = 0;
>> +		info->num_of_err_m_bs_in_disp = 0;
>> +	}
>> +
>> +	if (info->sequence_changed &&
>> +	    ((info->sequence_changed & SEQ_CHANGE_INTER_RES_CHANGE) != SEQ_CHANGE_INTER_RES_CHANGE))
>> +		p_dec_info->initial_info.sequence_no++;
>> +
>> +err_out:
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_dec_clr_disp_flag(struct vpu_instance *inst, int index)
>> +{
>> +	struct dec_info *p_dec_info;
>> +	int ret = 0;
>> +	s32 end_index;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +
>> +	p_dec_info = &inst->codec_info->dec_info;
>> +
>> +	end_index = p_dec_info->num_fbs_for_wtl;
>> +
>> +	if (index < 0 || index > end_index - 1)
>> +		return -EINVAL;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +	ret = wave5_dec_clr_disp_flag(inst, index);
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_dec_give_command(struct vpu_instance *inst, enum codec_command cmd, void *param)
>> +{
>> +	struct dec_info *p_dec_info;
>> +
>> +	p_dec_info = &inst->codec_info->dec_info;
>> +	switch (cmd) {
>> +	case DEC_GET_QUEUE_STATUS:
>> +		{
>> +			struct queue_status_info *queue_info = (struct queue_status_info *)param;
>> +
>> +			queue_info->instance_queue_count = p_dec_info->instance_queue_count;
>> +			queue_info->report_queue_count = p_dec_info->report_queue_count;
>> +			break;
>> +		}
>> +
>> +	case ENABLE_DEC_THUMBNAIL_MODE:
>> +		{
>> +			p_dec_info->thumbnail_mode = 1;
>> +			break;
>> +		}
>> +	default:
>> +		return -EINVAL;
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>> +int wave5_vpu_enc_open_api(struct vpu_instance *vpu_inst, struct enc_open_param *pop)
>> +{
>> +	struct enc_info *p_enc_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = vpu_inst->dev;
>> +
>> +	ret = wave5_vpu_enc_check_open_param(vpu_inst, pop);
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	if (!wave5_vpu_is_init(vpu_dev)) {
>> +		ret = -ENODEV;
>> +		goto err_out;
>> +	}
>> +
>> +	vpu_inst->codec_info = kzalloc(sizeof(*vpu_inst->codec_info), GFP_KERNEL);
>> +	if (!vpu_inst->codec_info) {
>> +		ret = -ENOMEM;
>> +		goto err_out;
>> +	}
>> +
>> +	vpu_inst->id = ida_alloc_max(&vpu_inst->dev->inst_ida, MAX_NUM_INSTANCE - 1, GFP_KERNEL);
>> +	if (vpu_inst->id < 0) {
>> +		dev_warn(vpu_inst->dev->dev, "unable to allocate instance ID: %d\n", vpu_inst->id);
>> +		ret = vpu_inst->id;
>> +		goto err_out;
>> +	}
>> +	p_enc_info = &vpu_inst->codec_info->enc_info;
>> +	p_enc_info->open_param = *pop;
>> +
>> +	ret = wave5_vpu_build_up_enc_param(vpu_dev->dev, vpu_inst, pop);
>> +	if (ret)
>> +		goto err_out;
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +err_out:
>> +	if (vpu_inst->id >= 0)
>> +		ida_free(&vpu_inst->dev->inst_ida, vpu_inst->id);
>> +	kfree(vpu_inst->codec_info);
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_enc_close(struct vpu_instance *inst, u32 *fail_res)
>> +{
>> +	struct enc_info *p_enc_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +	*fail_res = 0;
>> +
>> +	if (!inst->codec_info)
>> +		return -EINVAL;
>> +	p_enc_info = &inst->codec_info->enc_info;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = wave5_vpu_enc_fini_seq(inst, fail_res);
>> +	if (ret) {
>> +		dev_warn(inst->dev->dev, "enc seq end timed out\n");
>> +
>> +		if (*fail_res == WAVE5_SYSERR_VPU_STILL_RUNNING) {
>> +			mutex_unlock(&vpu_dev->hw_lock);
>> +			return ret;
>> +		}
>> +	}
>> +
>> +	dev_dbg(inst->dev->dev, "enc seq end timed out\n");
>> +
>> +	if (p_enc_info->vb_work.size)
>> +		wave5_vdi_free_dma_memory(vpu_dev, &p_enc_info->vb_work);
>> +
>> +	if (inst->std == W_HEVC_ENC || inst->std == W_AVC_ENC) {
>> +		if (p_enc_info->vb_sub_sam_buf.size)
>> +			wave5_vdi_free_dma_memory(vpu_dev, &p_enc_info->vb_sub_sam_buf);
>> +
>> +		if (p_enc_info->vb_mv.size)
>> +			wave5_vdi_free_dma_memory(vpu_dev, &p_enc_info->vb_mv);
>> +
>> +		if (p_enc_info->vb_fbc_y_tbl.size)
>> +			wave5_vdi_free_dma_memory(vpu_dev, &p_enc_info->vb_fbc_y_tbl);
>> +
>> +		if (p_enc_info->vb_fbc_c_tbl.size)
>> +			wave5_vdi_free_dma_memory(vpu_dev, &p_enc_info->vb_fbc_c_tbl);
>> +	}
>> +
>> +	if (p_enc_info->vb_task.size)
>> +		wave5_vdi_free_dma_memory(vpu_dev, &p_enc_info->vb_task);
>> +
>> +	ida_free(&inst->dev->inst_ida, inst->id);
>> +
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	kfree(inst->codec_info);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_enc_register_frame_buffer(struct vpu_instance *inst, int num, unsigned int stride,
>> +					int height, enum tiled_map_type map_type)
>> +{
>> +	struct enc_info *p_enc_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +	u32 size_luma, size_chroma;
>> +	int i;
>> +
>> +	p_enc_info = &inst->codec_info->enc_info;
>> +
>> +	if (p_enc_info->stride)
>> +		return -EINVAL;
>> +
>> +	if (!p_enc_info->initial_info_obtained)
>> +		return -EINVAL;
>> +
>> +	if (num < p_enc_info->initial_info.min_frame_buffer_count)
>> +		return -EINVAL;
>> +
>> +	if (stride == 0 || stride % 8 != 0)
>> +		return -EINVAL;
>> +
>> +	if (height == 0 || height < 0)
>> +		return -EINVAL;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	p_enc_info->num_frame_buffers = num;
>> +	p_enc_info->stride = stride;
>> +
>> +	size_luma = stride * height;
>> +	size_chroma = ALIGN(stride / 2, 16) * height;
>> +
>> +	for (i = 0; i < num; i++) {
>> +		if (inst->frame_buf[i].update_fb_info) {
>> +			inst->frame_buf[i].update_fb_info = FALSE;
>> +			inst->frame_buf[i].stride = stride;
>> +			inst->frame_buf[i].height = height;
>> +			inst->frame_buf[i].map_type = COMPRESSED_FRAME_MAP;
>> +			inst->frame_buf[i].cbcr_interleave = true;
>> +			inst->frame_buf[i].endian = VDI_128BIT_LITTLE_ENDIAN;
>> +			inst->frame_buf[i].buf_y_size = size_luma;
>> +			inst->frame_buf[i].buf_cb = inst->frame_buf[i].buf_y + size_luma;
>> +			inst->frame_buf[i].buf_cb_size = size_chroma;
>> +			inst->frame_buf[i].buf_cr_size = 0;
>> +		}
>> +	}
>> +
>> +	ret = wave5_vpu_enc_register_framebuffer(inst->dev->dev, inst, &inst->frame_buf[0],
>> +						 COMPRESSED_FRAME_MAP,
>> +						 p_enc_info->num_frame_buffers);
>> +
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +static int wave5_check_enc_param(struct vpu_instance *inst, struct enc_param *param)
>> +{
>> +	struct enc_info *p_enc_info;
>> +
>> +	p_enc_info = &inst->codec_info->enc_info;
> 
> Just do this in the declaration:
> 
> 	struct enc_info *p_enc_info = &inst->codec_info->enc_info;
> 
>> +
>> +	if (!param)
>> +		return -EINVAL;
>> +
>> +	if (!param->skip_picture && !param->source_frame)
>> +		return -EINVAL;
>> +
>> +	if (p_enc_info->open_param.bit_rate == 0) { // no rate control
>> +		if (inst->std == W_HEVC_ENC) {
> 
> 
> Combine these two if statements.  Pull the code in one tab.
> 
> 	if (p_enc_info->open_param.bit_rate == 0 &&
> 	    inst->std == W_HEVC_ENC) {
> 
>> +			if (param->force_pic_qp_enable == 1) {
>> +				if (param->force_pic_qp_i < 0 || param->force_pic_qp_i > 63)
>> +					return -EINVAL;
>> +
>> +				if (param->force_pic_qp_p < 0 || param->force_pic_qp_p > 63)
>> +					return -EINVAL;
>> +
>> +				if (param->force_pic_qp_b < 0 || param->force_pic_qp_b > 63)
>> +					return -EINVAL;
>> +			}
>> +			if (!p_enc_info->ring_buffer_enable &&
>> +			    (param->pic_stream_buffer_addr % 16 ||
>> +			    param->pic_stream_buffer_size == 0))
>> +				return -EINVAL;
> 
> Indent the last condition an extra space so it lines up nicely:
> 
> 			if (!p_enc_info->ring_buffer_enable &&
> 			    (param->pic_stream_buffer_addr % 16 ||
> 			     param->pic_stream_buffer_size == 0))
> 
> 
>> +		}
>> +	}
>> +	if (!p_enc_info->ring_buffer_enable) {
>> +		if (param->pic_stream_buffer_addr % 8 || param->pic_stream_buffer_size == 0)
> 
> Combine these:
> 
> 	if (!p_enc_info->ring_buffer_enable &&
> 	    (param->pic_stream_buffer_addr % 8 ||
> 	     param->pic_stream_buffer_size == 0))
> 		return -EINVAL;
> 
>> +			return -EINVAL;
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>> +static uint64_t wave5_get_timestamp(struct vpu_instance *vpu_inst)
>> +{
>> +	struct enc_info *p_enc_info = NULL;
> 
> Don't do an unused initialize.
> 
> 	struct enc_info *p_enc_info;
> 
>> +	u64 pts;
>> +	u32 fps;
>> +
>> +	if (!vpu_inst->codec_info)
>> +		return 0;
>> +
>> +	p_enc_info = &vpu_inst->codec_info->enc_info;
>> +	fps = p_enc_info->open_param.frame_rate_info;
>> +	if (fps == 0)
>> +		fps = 30;
>> +
>> +	pts = p_enc_info->cur_pts;
>> +	p_enc_info->cur_pts += 90000 / fps; /* 90_k_hz/fps */
>> +
>> +	return pts;
>> +}
>> +
>> +int wave5_vpu_enc_start_one_frame(struct vpu_instance *inst, struct enc_param *param, u32 *fail_res)
>> +{
>> +	struct enc_info *p_enc_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +	*fail_res = 0;
> 
> Blank line.
> 
>> +
>> +	p_enc_info = &inst->codec_info->enc_info;
> 
> Do this in the initializer:
> 
> 	struct enc_info *p_enc_info = &inst->codec_info->enc_info;
> 
>> +
>> +	if (p_enc_info->stride == 0) // this means frame buffers have not been registered.
>> +		return -EINVAL;
>> +
>> +	ret = wave5_check_enc_param(inst, param);
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	p_enc_info->pts_map[param->src_idx] = p_enc_info->open_param.enable_pts ?
>> +					      wave5_get_timestamp(inst) : param->pts;
>> +
>> +	ret = wave5_vpu_encode(inst, param, fail_res);
>> +
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_enc_get_output_info(struct vpu_instance *inst, struct enc_output_info *info)
>> +{
>> +	struct enc_info *p_enc_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +
>> +	if (!info)
> 
> Is this really required?
> 
>> +		return -EINVAL;
>> +
>> +	p_enc_info = &inst->codec_info->enc_info;
> 
> Move to initializer.
> 
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = wave5_vpu_enc_get_result(inst, info);
>> +
>> +	if (ret) {
> 
> Delete the blank line before the if.
> 
>> +		info->pts = 0LL;
> 
> Just "= 0;"
> 
>> +		goto unlock;
>> +	}
>> +
>> +	if (info->recon_frame_index >= 0)
>> +		info->pts = p_enc_info->pts_map[info->enc_src_idx];
>> +
>> +unlock:
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_enc_give_command(struct vpu_instance *inst, enum codec_command cmd, void *param)
>> +{
>> +	struct enc_info *p_enc_info;
>> +
>> +	p_enc_info = &inst->codec_info->enc_info;
> 
> Initializer.
> 
>> +	switch (cmd) {
>> +	case ENABLE_ROTATION:
>> +		p_enc_info->rotation_enable = 1;
>> +		break;
>> +	case ENABLE_MIRRORING:
>> +		p_enc_info->mirror_enable = 1;
>> +		break;
>> +	case SET_MIRROR_DIRECTION: {
>> +		enum mirror_direction mir_dir;
>> +
>> +		if (!param)
>> +			return -EINVAL;
>> +
>> +		mir_dir = *(enum mirror_direction *)param;
>> +		if (!(mir_dir == MIRDIR_NONE) && !(mir_dir == MIRDIR_HOR) &&
>> +		    !(mir_dir == MIRDIR_VER) && !(mir_dir == MIRDIR_HOR_VER))
> 
> Use !=:
> 
> 		if (mir_dir != MIRDIR_NON && mir_dir != MIRDIR_HOR &&
> 		    mir_dir != MIRDIR_VER && mir_dir != MIRDIR_HOR_VER)
> 
>> +			return -EINVAL;
>> +		p_enc_info->mirror_direction = mir_dir;
>> +		break;
>> +	}
>> +	case SET_ROTATION_ANGLE: {
>> +		int angle;
>> +
>> +		if (!param)
>> +			return -EINVAL;
>> +		angle = *(int *)param;
>> +		if (angle && angle != 90 && angle != 180 && angle != 270)
>> +			return -EINVAL;
>> +		if (p_enc_info->initial_info_obtained && (angle == 90 || angle == 270))
>> +			return -EINVAL;
>> +		p_enc_info->rotation_angle = angle;
>> +		break;
>> +	}
>> +	case ENC_GET_QUEUE_STATUS: {
>> +		struct queue_status_info *queue_info = (struct queue_status_info *)param;
> 
> Get rid of the cast.
> 
> I don't like the NULL checking in this function.  It's not done
> consistently.  Why does SET_ROTATION_ANGLE have a NULL check and
> ENC_GET_QUEUE_STATUS not have a check?  It's better to just Oops and so
> every can see where there is a bug.
> 
> Rule: Subtle bugs are worse than obvious bugs.
> 
>> +
>> +		queue_info->instance_queue_count = p_enc_info->instance_queue_count;
>> +		queue_info->report_queue_count = p_enc_info->report_queue_count;
>> +		break;
>> +	}
>> +	default:
>> +		return -EINVAL;
>> +	}
>> +	return 0;
>> +}
>> +
>> +int wave5_vpu_enc_issue_seq_init(struct vpu_instance *inst)
>> +{
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = wave5_vpu_enc_init_seq(inst);
>> +
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_enc_complete_seq_init(struct vpu_instance *inst, struct enc_initial_info *info)
>> +{
>> +	struct enc_info *p_enc_info;
>> +	int ret;
>> +	struct vpu_device *vpu_dev = inst->dev;
>> +
>> +	if (!info)
>> +		return -EINVAL;
>> +
>> +	p_enc_info = &inst->codec_info->enc_info;
> 
> Do it in the initliazer.
> 
>> +
>> +	ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = wave5_vpu_enc_get_seq_info(inst, info);
>> +	if (!ret)
>> +		p_enc_info->initial_info_obtained = 1;
>> +
>> +	p_enc_info->initial_info = *info;
> 
> Should this be part of the if (!ret) if statement?
> 
>> +
>> +	mutex_unlock(&vpu_dev->hw_lock);
>> +
>> +	return ret;
>> +}
>> +
>> diff --git a/drivers/staging/media/wave5/vpuapi.h b/drivers/staging/media/wave5/vpuapi.h
>> new file mode 100644
>> index 000000000000..6182252e233d
>> --- /dev/null
>> +++ b/drivers/staging/media/wave5/vpuapi.h
>> @@ -0,0 +1,1148 @@
>> +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
>> +/*
>> + * Wave5 series multi-standard codec IP - helper definitions
>> + *
>> + * Copyright (C) 2021 CHIPS&MEDIA INC
>> + */
>> +
>> +#ifndef VPUAPI_H_INCLUDED
>> +#define VPUAPI_H_INCLUDED
>> +
>> +#include <linux/kfifo.h>
>> +#include <linux/idr.h>
>> +#include <media/v4l2-device.h>
>> +#include <media/v4l2-mem2mem.h>
>> +#include <media/v4l2-ctrls.h>
>> +#include "vpuerror.h"
>> +#include "vpuconfig.h"
>> +#include "vdi.h"
>> +
>> +enum product_id {
>> +	PRODUCT_ID_521,
>> +	PRODUCT_ID_511,
>> +	PRODUCT_ID_517,
>> +	PRODUCT_ID_NONE,
>> +};
>> +
>> +#define PRODUCT_ID_W_SERIES(x) ({	\
>> +	enum product_id pid = x;	\
>> +	((pid) == PRODUCT_ID_521 ||	\
>> +	 (pid) == PRODUCT_ID_511 ||	\
>> +	 (pid) == PRODUCT_ID_517);	\
>> +})
> 
> Make this a function.
> 
> static bool wave5_is_w_series(enum product_id pid)
> {
> 	if (pid == PRODUCT_ID_511 ||
> 	    pid == PRODUCT_ID_517 ||
> 	    pid == PRODUCT_ID_521)
> 		return true;
> 	return false;
> }
> 
>> +
>> +#define PRODUCT_ID_NOT_W_SERIES(x) !PRODUCT_ID_W_SERIES(x)
> 
> Delete this macro and call if (!wave5_is_w_series(x)) directly.
> 
>> +
>> +struct vpu_attr;
>> +
>> +enum vpu_instance_type {
>> +	VPU_INST_TYPE_DEC = 0,
>> +	VPU_INST_TYPE_ENC = 1
>> +};
>> +
>> +enum vpu_instance_state {
>> +	VPU_INST_STATE_NONE = 0,
>> +	VPU_INST_STATE_OPEN = 1,
>> +	VPU_INST_STATE_INIT_SEQ = 2,
>> +	VPU_INST_STATE_PIC_RUN = 3,
>> +	VPU_INST_STATE_STOP = 4,
>> +	VPU_INST_STATE_WAIT_BUF = 5
>> +};
>> +
>> +#define WAVE5_MAX_FBS 32
>> +
>> +#define MAX_REG_FRAME (WAVE5_MAX_FBS * 2)
>> +
>> +#define WAVE5_DEC_HEVC_BUF_SIZE(_w, _h) (DIV_ROUND_UP(_w, 64) * DIV_ROUND_UP(_h, 64) * 256 + 64)
>> +#define WAVE5_DEC_AVC_BUF_SIZE(_w, _h) ((((ALIGN(_w, 256) / 16) * (ALIGN(_h, 16) / 16)) + 16) * 80)
>> +#define WAVE5_DEC_VP9_BUF_SIZE(_w, _h) (((ALIGN(_w, 64) * ALIGN(_h, 64)) >> 2))
>> +#define WAVE5_DEC_AVS2_BUF_SIZE(_w, _h) (((ALIGN(_w, 64) * ALIGN(_h, 64)) >> 5))
>> +// AV1 BUF SIZE : MFMV + segment ID + CDF probs table + film grain param Y+ film graim param C
>> +#define WAVE5_DEC_AV1_BUF_SZ_1(_w, _h)	\
>> +	(((ALIGN(_w, 64) / 64) * (ALIGN(_h, 64) / 64) * 512) + 41984 + 8192 + 4864)
>> +#define WAVE5_DEC_AV1_BUF_SZ_2(_w1, _w2, _h)	\
>> +	(((ALIGN(_w1, 64) / 64) * 256 + (ALIGN(_w2, 256) / 64) * 128) * (ALIGN(_h, 64) / 64))
>> +
>> +#define WAVE5_FBC_LUMA_TABLE_SIZE(_w, _h) (ALIGN(_h, 64) * ALIGN(_w, 256) / 32)
>> +#define WAVE5_FBC_CHROMA_TABLE_SIZE(_w, _h) (ALIGN((_h), 64) * ALIGN((_w) / 2, 256) / 32)
>> +#define WAVE5_ENC_AVC_BUF_SIZE(_w, _h) (ALIGN(_w, 64) * ALIGN(_h, 64) / 32)
>> +#define WAVE5_ENC_HEVC_BUF_SIZE(_w, _h) (ALIGN(_w, 64) / 64 * ALIGN(_h, 64) / 64 * 128)
>> +
>> +/*
>> + * common struct and definition
>> + */
>> +enum cod_std {
>> +	STD_AVC = 0,
>> +	STD_VC1 = 1,
>> +	STD_MPEG2 = 2,
>> +	STD_MPEG4 = 3,
>> +	STD_H263 = 4,
>> +	STD_DIV3 = 5,
>> +	STD_RV = 6,
>> +	STD_AVS = 7,
>> +	STD_THO = 9,
>> +	STD_VP3 = 10,
>> +	STD_VP8 = 11,
>> +	STD_HEVC = 12,
>> +	STD_VP9 = 13,
>> +	STD_AVS2 = 14,
>> +	STD_AV1 = 16,
>> +	STD_MAX
>> +};
>> +
>> +enum wave_std {
>> +	W_HEVC_DEC = 0x00,
>> +	W_HEVC_ENC = 0x01,
>> +	W_AVC_DEC = 0x02,
>> +	W_AVC_ENC = 0x03,
>> +	W_VP9_DEC = 0x16,
>> +	W_AVS2_DEC = 0x18,
>> +	W_AV1_DEC = 0x1A,
>> +	STD_UNKNOWN = 0xFF
>> +};
>> +
>> +enum SET_PARAM_OPTION {
>> +	OPT_COMMON = 0, /* SET_PARAM command option for encoding sequence */
>> +	OPT_CUSTOM_GOP = 1, /* SET_PARAM command option for setting custom GOP */
>> +	OPT_CUSTOM_HEADER = 2, /* SET_PARAM command option for setting custom VPS/SPS/PPS */
>> +	OPT_VUI = 3, /* SET_PARAM command option for encoding VUI */
>> +	OPT_CHANGE_PARAM = 0x10,
>> +};
>> +
>> +enum DEC_PIC_HDR_OPTION {
>> +	INIT_SEQ_NORMAL = 0x01,
>> +	INIT_SEQ_W_THUMBNAIL = 0x11,
>> +};
>> +
>> +enum DEC_PIC_OPTION {
>> +	DEC_PIC_NORMAL = 0x00, /* it is normal mode of DEC_PIC command. */
>> +	DEC_PIC_W_THUMBNAIL = 0x10, /* thumbnail mode (skip non-IRAP without reference reg.) */
>> +	SKIP_NON_IRAP = 0x11, /* it skips to decode non-IRAP pictures. */
>> +	SKIP_NON_REF_PIC = 0x13
>> +};
>> +
>> +/************************************************************************/
>> +/* PROFILE & LEVEL */
>> +/************************************************************************/
>> +/* HEVC */
>> +#define HEVC_PROFILE_MAIN 1
>> +#define HEVC_PROFILE_MAIN10 2
>> +#define HEVC_PROFILE_STILLPICTURE 3
>> +#define HEVC_PROFILE_MAIN10_STILLPICTURE 2
>> +
>> +/* H.264 profile for encoder*/
>> +#define H264_PROFILE_BP 1
>> +#define H264_PROFILE_MP 2
>> +#define H264_PROFILE_EXTENDED 3
>> +#define H264_PROFILE_HP 4
>> +#define H264_PROFILE_HIGH10 5
>> +#define H264_PROFILE_HIGH422 6
>> +#define H264_PROFILE_HIGH444 7
>> +
>> +/************************************************************************/
>> +/* error codes */
>> +/************************************************************************/
>> +
>> +/************************************************************************/
>> +/* utility macros */
>> +/************************************************************************/
>> +#define VPU_CEIL(_data, _align) (((_data) + ((_align) - 1)) & ~((_align) - 1))
>> +
>> +/************************************************************************/
>> +/* */
>> +/************************************************************************/
>> +/**
>> + * \brief parameters of DEC_SET_SEQ_CHANGE_MASK
>> + */
>> +#define SEQ_CHANGE_ENABLE_PROFILE BIT(5)
>> +#define SEQ_CHANGE_CHROMA_FORMAT_IDC BIT(15) /* AV1 */
>> +#define SEQ_CHANGE_ENABLE_SIZE BIT(16)
>> +#define SEQ_CHANGE_INTER_RES_CHANGE BIT(17) /* VP9 */
>> +#define SEQ_CHANGE_ENABLE_BITDEPTH BIT(18)
>> +#define SEQ_CHANGE_ENABLE_DPB_COUNT BIT(19)
>> +
>> +#define SEQ_CHANGE_ENABLE_ALL_VP9 (SEQ_CHANGE_ENABLE_PROFILE | \
>> +		SEQ_CHANGE_ENABLE_SIZE | \
>> +		SEQ_CHANGE_INTER_RES_CHANGE | \
>> +		SEQ_CHANGE_ENABLE_BITDEPTH | \
>> +		SEQ_CHANGE_ENABLE_DPB_COUNT)
>> +
>> +#define SEQ_CHANGE_ENABLE_ALL_HEVC (SEQ_CHANGE_ENABLE_PROFILE | \
>> +		SEQ_CHANGE_ENABLE_SIZE | \
>> +		SEQ_CHANGE_ENABLE_BITDEPTH | \
>> +		SEQ_CHANGE_ENABLE_DPB_COUNT)
>> +
>> +#define SEQ_CHANGE_ENABLE_ALL_AVS2 (SEQ_CHANGE_ENABLE_PROFILE | \
>> +		SEQ_CHANGE_ENABLE_SIZE | \
>> +		SEQ_CHANGE_ENABLE_BITDEPTH | \
>> +		SEQ_CHANGE_ENABLE_DPB_COUNT)
>> +
>> +#define SEQ_CHANGE_ENABLE_ALL_AVC (SEQ_CHANGE_ENABLE_SIZE | \
>> +		SEQ_CHANGE_ENABLE_BITDEPTH | \
>> +		SEQ_CHANGE_ENABLE_DPB_COUNT)
>> +
>> +#define SEQ_CHANGE_ENABLE_ALL_AV1 (SEQ_CHANGE_ENABLE_PROFILE | \
>> +		SEQ_CHANGE_CHROMA_FORMAT_IDC | \
>> +		SEQ_CHANGE_ENABLE_SIZE | \
>> +		SEQ_CHANGE_ENABLE_BITDEPTH | \
>> +		SEQ_CHANGE_ENABLE_DPB_COUNT)
>> +
>> +#define DISPLAY_IDX_FLAG_SEQ_END -1
>> +#define DISPLAY_IDX_FLAG_NO_FB -3
>> +#define DECODED_IDX_FLAG_NO_FB -1
>> +#define DECODED_IDX_FLAG_SKIP -2
>> +
>> +#define RECON_IDX_FLAG_ENC_END -1
>> +#define RECON_IDX_FLAG_ENC_DELAY -2
>> +#define RECON_IDX_FLAG_HEADER_ONLY -3
>> +#define RECON_IDX_FLAG_CHANGE_PARAM -4
>> +
>> +enum codec_command {
>> +	ENABLE_ROTATION,
>> +	ENABLE_MIRRORING,
>> +	SET_MIRROR_DIRECTION,
>> +	SET_ROTATION_ANGLE,
>> +	ENABLE_DEC_THUMBNAIL_MODE,
>> +	DEC_GET_QUEUE_STATUS,
>> +	ENC_GET_QUEUE_STATUS,
>> +};
>> +
>> +enum error_conceal_mode {
>> +	ERROR_CONCEAL_MODE_OFF = 0, /* conceal off */
>> +	ERROR_CONCEAL_MODE_INTRA_ONLY = 1, /* intra conceal in intra-picture, inter-picture */
>> +	ERROR_CONCEAL_MODE_INTRA_INTER = 2
>> +};
>> +
>> +enum error_conceal_unit {
>> +	ERROR_CONCEAL_UNIT_PICTURE = 0, /* picture-level error conceal */
>> +	ERROR_CONCEAL_UNIT_SLICE_TILE = 1, /* slice/tile-level error conceal */
>> +	ERROR_CONCEAL_UNIT_BLOCK_ROW = 2, /* block-row-level error conceal */
>> +	ERROR_CONCEAL_UNIT_BLOCK = 3 /* block-level conceal */
>> +};
>> +
>> +enum cb_cr_order {
>> +	CBCR_ORDER_NORMAL,
>> +	CBCR_ORDER_REVERSED
>> +};
>> +
>> +enum mirror_direction {
>> +	MIRDIR_NONE, /* no mirroring */
>> +	MIRDIR_VER, /* vertical mirroring */
>> +	MIRDIR_HOR, /* horizontal mirroring */
>> +	MIRDIR_HOR_VER /* horizontal and vertical mirroring */
>> +};
>> +
>> +enum frame_buffer_format {
>> +	FORMAT_ERR = -1,
>> +	FORMAT_420 = 0, /* 8bit */
>> +	FORMAT_422, /* 8bit */
>> +	FORMAT_224, /* 8bit */
>> +	FORMAT_444, /* 8bit */
>> +	FORMAT_400, /* 8bit */
>> +
>> +	/* little endian perspective */
>> +	/* | addr 0 | addr 1 | */
>> +	FORMAT_420_P10_16BIT_MSB = 5, /* lsb |000000xx|xxxxxxxx | msb */
>> +	FORMAT_420_P10_16BIT_LSB, /* lsb |xxxxxxx |xx000000 | msb */
>> +	FORMAT_420_P10_32BIT_MSB, /* lsb |00xxxxxxxxxxxxxxxxxxxxxxxxxxx| msb */
>> +	FORMAT_420_P10_32BIT_LSB, /* lsb |xxxxxxxxxxxxxxxxxxxxxxxxxxx00| msb */
>> +
>> +	/* 4:2:2 packed format */
>> +	/* little endian perspective */
>> +	/* | addr 0 | addr 1 | */
>> +	FORMAT_422_P10_16BIT_MSB, /* lsb |000000xx |xxxxxxxx | msb */
>> +	FORMAT_422_P10_16BIT_LSB, /* lsb |xxxxxxxx |xx000000 | msb */
>> +	FORMAT_422_P10_32BIT_MSB, /* lsb |00xxxxxxxxxxxxxxxxxxxxxxxxxxx| msb */
>> +	FORMAT_422_P10_32BIT_LSB, /* lsb |xxxxxxxxxxxxxxxxxxxxxxxxxxx00| msb */
>> +
>> +	FORMAT_YUYV, /* 8bit packed format : Y0U0Y1V0 Y2U1Y3V1 ... */
>> +	FORMAT_YUYV_P10_16BIT_MSB,
>> +	FORMAT_YUYV_P10_16BIT_LSB,
>> +	FORMAT_YUYV_P10_32BIT_MSB,
>> +	FORMAT_YUYV_P10_32BIT_LSB,
>> +
>> +	FORMAT_YVYU, /* 8bit packed format : Y0V0Y1U0 Y2V1Y3U1 ... */
>> +	FORMAT_YVYU_P10_16BIT_MSB,
>> +	FORMAT_YVYU_P10_16BIT_LSB,
>> +	FORMAT_YVYU_P10_32BIT_MSB,
>> +	FORMAT_YVYU_P10_32BIT_LSB,
>> +
>> +	FORMAT_UYVY, /* 8bit packed format : U0Y0V0Y1 U1Y2V1Y3 ... */
>> +	FORMAT_UYVY_P10_16BIT_MSB,
>> +	FORMAT_UYVY_P10_16BIT_LSB,
>> +	FORMAT_UYVY_P10_32BIT_MSB,
>> +	FORMAT_UYVY_P10_32BIT_LSB,
>> +
>> +	FORMAT_VYUY, /* 8bit packed format : V0Y0U0Y1 V1Y2U1Y3 ... */
>> +	FORMAT_VYUY_P10_16BIT_MSB,
>> +	FORMAT_VYUY_P10_16BIT_LSB,
>> +	FORMAT_VYUY_P10_32BIT_MSB,
>> +	FORMAT_VYUY_P10_32BIT_LSB,
>> +
>> +	FORMAT_MAX,
>> +};
>> +
>> +enum packed_format_num {
>> +	NOT_PACKED = 0,
>> +	PACKED_YUYV,
>> +	PACKED_YVYU,
>> +	PACKED_UYVY,
>> +	PACKED_VYUY,
>> +};
>> +
>> +enum wave5_interrupt_bit {
>> +	INT_WAVE5_INIT_VPU = 0,
>> +	INT_WAVE5_WAKEUP_VPU = 1,
>> +	INT_WAVE5_SLEEP_VPU = 2,
>> +	INT_WAVE5_CREATE_INSTANCE = 3,
>> +	INT_WAVE5_FLUSH_INSTANCE = 4,
>> +	INT_WAVE5_DESTROY_INSTANCE = 5,
>> +	INT_WAVE5_INIT_SEQ = 6,
>> +	INT_WAVE5_SET_FRAMEBUF = 7,
>> +	INT_WAVE5_DEC_PIC = 8,
>> +	INT_WAVE5_ENC_PIC = 8,
>> +	INT_WAVE5_ENC_SET_PARAM = 9,
>> +	INT_WAVE5_DEC_QUERY = 14,
>> +	INT_WAVE5_BSBUF_EMPTY = 15,
>> +	INT_WAVE5_BSBUF_FULL = 15,
>> +};
>> +
>> +enum pic_type {
>> +	PIC_TYPE_I = 0, /* I picture */
>> +	PIC_TYPE_KEY = 0, /* KEY frame for AV1*/
>> +	PIC_TYPE_P = 1, /* P picture */
>> +	PIC_TYPE_INTER = 1, /* inter frame for AV1*/
>> +	PIC_TYPE_B = 2, /* B picture (except VC1) */
>> +	PIC_TYPE_REPEAT = 2, /* repeat frame (VP9 only) */
>> +	PIC_TYPE_AV1_INTRA = 2, /* intra only frame (AV1 only) */
>> +	PIC_TYPE_VC1_BI = 2, /* VC1 BI picture (VC1 only) */
>> +	PIC_TYPE_VC1_B = 3, /* VC1 B picture (VC1 only) */
>> +	PIC_TYPE_D = 3,
>> +	PIC_TYPE_S = 3,
>> +	PIC_TYPE_AVS2_F = 3, /* F picture in AVS2 */
>> +	PIC_TYPE_AV1_SWITCH = 3, /* switch frame (AV1 only) */
>> +	PIC_TYPE_VC1_P_SKIP = 4, /* VC1 P skip picture (VC1 only) */
>> +	PIC_TYPE_MP4_P_SKIP_NOT_CODED = 4, /* not coded P picture in MPEG4 packed mode */
>> +	PIC_TYPE_AVS2_S = 4, /* S picture in AVS2 */
>> +	PIC_TYPE_IDR = 5, /* H.264/H.265 IDR picture */
>> +	PIC_TYPE_AVS2_G = 5, /* G picture in AVS2 */
>> +	PIC_TYPE_AVS2_GB = 6, /* GB picture in AVS2 */
>> +	PIC_TYPE_MAX /* no meaning */
>> +};
>> +
>> +enum bit_stream_mode {
>> +	BS_MODE_INTERRUPT,
>> +	BS_MODE_RESERVED, /* reserved for the future */
>> +	BS_MODE_PIC_END,
>> +};
>> +
>> +enum sw_reset_mode {
>> +	SW_RESET_SAFETY,
>> +	SW_RESET_FORCE,
>> +	SW_RESET_ON_BOOT
>> +};
>> +
>> +enum tiled_map_type {
>> +	LINEAR_FRAME_MAP = 0, /* linear frame map type */
>> +	COMPRESSED_FRAME_MAP = 17, /* compressed frame map type*/
>> +};
>> +
>> +enum temporal_id_mode {
>> +	TEMPORAL_ID_MODE_ABSOLUTE,
>> +	TEMPORAL_ID_MODE_RELATIVE,
>> +};
>> +
>> +struct vpu_attr {
>> +	u32 product_id; /* the product ID */
>> +	char product_name[8]; /* the product name in ascii code */
>> +	u32 product_version; /* the product version number */
>> +	u32 fw_version; /* the F/W version */
>> +	u32 customer_id; /* customer ID number */
>> +	u32 support_decoders; /* bitmask: see <<vpuapi_h_cod_std>> */
>> +	u32 support_encoders; /* bitmask: see <<vpuapi_h_cod_std>> */
>> +	bool support_bitstream_mode;
>> +	bool support_backbone;
>> +	bool support_avc10bit_enc;
>> +	bool support_hevc10bit_enc;
>> +	u32 support_endian_mask; /* A variable of supported endian mode in product */
>> +	bool support_dual_core; /* this indicates whether a product has two vcores. */
>> +	bool support_vcore_backbone;
>> +	bool support_vcpu_backbone;
>> +};
>> +
>> +struct frame_buffer {
>> +	dma_addr_t buf_y;
>> +	dma_addr_t buf_cb;
>> +	dma_addr_t buf_cr;
>> +	u32 buf_y_size;
>> +	u32 buf_cb_size;
>> +	u32 buf_cr_size;
>> +	int cbcr_interleave;
>> +	int endian;
>> +	enum tiled_map_type map_type;
>> +	int stride; /* A horizontal stride for given frame buffer */
>> +	int width; /* A width for given frame buffer */
>> +	int height; /* A height for given frame buffer */
>> +	int size; /* A size for given frame buffer */
>> +	int sequence_no;
>> +	bool update_fb_info;
>> +};
>> +
>> +struct vpu_rect {
>> +	u32 left; /* A horizontal pixel offset of top-left corner of rectangle from (0, 0) */
>> +	u32 top; /* A vertical pixel offset of top-left corner of rectangle from (0, 0) */
>> +	u32 right; /* A horizontal pixel offset of bottom-right corner of rectangle from (0, 0) */
>> +	u32 bottom; /* A vertical pixel offset of bottom-right corner of rectangle from (0, 0) */
>> +};
>> +
>> +/*
>> + * decode struct and definition
>> + */
>> +
>> +struct dec_open_param {
>> +	dma_addr_t bitstream_buffer;
>> +	int bitstream_buffer_size;
>> +	int cbcr_interleave;
>> +	int nv21;
>> +	int cbcr_order;
>> +	enum endian_mode frame_endian;
>> +	enum endian_mode stream_endian;
>> +	enum bit_stream_mode bitstream_mode;
>> +	bool enable_non_ref_fbc_write;
>> +	int av1_format;
>> +	enum error_conceal_unit error_conceal_unit;
>> +	enum error_conceal_mode error_conceal_mode;
>> +};
>> +
>> +struct dec_initial_info {
>> +	s32 pic_width;
>> +	s32 pic_height;
>> +	s32 f_rate_numerator; /* the numerator part of frame rate fraction */
>> +	s32 f_rate_denominator; /* the denominator part of frame rate fraction */
>> +	struct vpu_rect pic_crop_rect;
>> +	s32 min_frame_buffer_count;
>> +	s32 frame_buf_delay;
>> +
>> +	s32 max_temporal_layers; /* it indicates the max number of temporal sub-layers. */
>> +	s32 max_spatial_layers;
>> +	s32 profile;
>> +	s32 level;
>> +	s32 tier;
>> +	s32 is_ext_sar;
>> +	s32 aspect_rate_info;
>> +	s32 bit_rate;
>> +	u32 user_data_header;
>> +	s32 user_data_num;
>> +	s32 user_data_size;
>> +	s32 user_data_buf_full;
>> +	s32 chroma_format_idc;/* A chroma format indicator */
>> +	s32 luma_bitdepth; /* A bit-depth of luma sample */
>> +	s32 chroma_bitdepth; /* A bit-depth of chroma sample */
>> +	u32 seq_init_err_reason;
>> +	s32 warn_info;
>> +	dma_addr_t rd_ptr; /* A read pointer of bitstream buffer */
>> +	dma_addr_t wr_ptr; /* A write pointer of bitstream buffer */
>> +	u32 sequence_no;
>> +	u32 output_bit_depth;
>> +	u32 vlc_buf_size; /* the size of vlc buffer */
>> +	u32 param_buf_size; /* the size of param buffer */
>> +};
>> +
>> +#define WAVE_SKIPMODE_WAVE_NONE 0
>> +#define WAVE_SKIPMODE_NON_IRAP 1
>> +#define WAVE_SKIPMODE_NON_REF 2
>> +
>> +struct dec_param {
>> +	s32 skipframe_mode;
>> +	bool cra_as_bla_flag;
>> +	bool disable_film_grain;
>> +};
>> +
>> +struct dec_output_ext_data {
>> +	u32 user_data_header;
>> +	u32 user_data_num; /* this is the number of user data. */
>> +	u32 user_data_size; /* this is the size of user data. */
>> +	u32 user_data_buf_full;
>> +	u32 active_format;
>> +};
>> +
>> +struct h265_rp_sei {
>> +	unsigned int exist;
>> +	int recovery_poc_cnt; /* recovery_poc_cnt */
>> +	int exact_match_flag; /* exact_match_flag */
>> +	int broken_link_flag; /* broken_link_flag */
>> +};
>> +
>> +struct avs2_info {
>> +	int decoded_poi;
>> +	int display_poi;
>> +};
>> +
>> +struct av1_info {
>> +	int allow_screen_content_tools; /* it indicates whether screen content tool is enabled. */
>> +	int allow_intra_bc; /* it indicates whether intra block copy is enabled. */
>> +	int spatial_id; /* it indicates a spatial ID of the picture. */
>> +};
>> +
>> +struct dec_output_info {
>> +	/**
>> +	 * this is a frame buffer index for the picture to be displayed at the moment among
>> +	 * frame buffers which are registered using vpu_dec_register_frame_buffer(). frame
>> +	 * data to be displayed are stored into the frame buffer with this index.
>> +	 * when there is no display delay, this index is always
>> +	 * the same with index_frame_decoded. however, if display delay does exist for display
>> +	 * reordering in AVC
>> +	 * or B-frames in VC1), this index might be different with index_frame_decoded.
>> +	 * by checking this index, HOST application can easily know whether sequence decoding
>> +	 * has been finished or not.
>> +	 *
>> +	 * -3(0xFFFD) or -2(0xFFFE) : it is when a display output cannot be given due to picture
>> +	 * reordering or skip option.
>> +	 * -1(0xFFFF) : it is when there is no more output for display at the end of sequence
>> +	 * decoding.
>> +	 */
>> +	int index_frame_display;
>> +	int index_frame_display_for_tiled; /* in case of WTL mode, this index indicates a display
>> +					    * index of tiled or compressed framebuffer.
>> +					    */
>> +	/**
>> +	 * this is a frame buffer index of decoded picture among frame buffers which were
>> +	 * registered using vpu_dec_register_frame_buffer(). the currently decoded frame is stored
>> +	 * into the frame buffer specified by
>> +	 * this index.
>> +	 *
>> +	 * -2 : it indicates that no decoded output is generated because decoder meets EOS
>> +	 * (end of sequence) or skip.
>> +	 * -1 : it indicates that decoder fails to decode a picture because there is no available
>> +	 * frame buffer.
>> +	 */
>> +	int index_frame_decoded;
>> +	int index_inter_frame_decoded;
>> +	int index_frame_decoded_for_tiled;
>> +	int nal_type;
>> +	int pic_type;
>> +	int num_of_err_m_bs;
>> +	int num_of_tot_m_bs;
>> +	int num_of_err_m_bs_in_disp;
>> +	int num_of_tot_m_bs_in_disp;
>> +	u32 decoding_success;
>> +	struct vpu_rect rc_display;
>> +	int disp_pic_width;
>> +	int disp_pic_height;
>> +	struct vpu_rect rc_decoded;
>> +	int dec_pic_width;
>> +	int dec_pic_height;
>> +	struct avs2_info avs2_info;
>> +	struct av1_info av1_info;
>> +	int decoded_poc;
>> +	int display_poc;
>> +	int temporal_id; /* A temporal ID of the picture */
>> +	struct h265_rp_sei h265_rp_sei;
>> +	struct dec_output_ext_data dec_output_ext_data;
>> +	int consumed_byte; /* the number of bytes that are consumed by VPU. */
>> +	int rd_ptr; /* A stream buffer read pointer for the current decoder instance */
>> +	int wr_ptr; /* A stream buffer write pointer for the current decoder instance */
>> +	dma_addr_t byte_pos_frame_start;
>> +	dma_addr_t byte_pos_frame_end;
>> +	struct frame_buffer disp_frame;
>> +	int frame_display_flag; /* it reports a frame buffer flag to be displayed. */
>> +	/**
>> +	 * this variable reports that sequence has been changed while H.264/AVC stream decoding.
>> +	 * if it is 1, HOST application can get the new sequence information by calling
>> +	 * vpu_dec_get_initial_info() or wave5_vpu_dec_issue_seq_init().
>> +	 *
>> +	 * for H.265/HEVC decoder, each bit has a different meaning as follows.
>> +	 *
>> +	 * sequence_changed[5] : it indicates that the profile_idc has been changed.
>> +	 * sequence_changed[16] : it indicates that the resolution has been changed.
>> +	 * sequence_changed[19] : it indicates that the required number of frame buffer has
>> +	 * been changed.
>> +	 */
>> +	int sequence_changed;
>> +	int frame_cycle; /* this variable reports the number of cycles for processing a frame. */
>> +	int error_reason;
>> +	u32 error_reason_ext;
>> +	int warn_info;
>> +	u32 sequence_no;
>> +
>> +	u32 dec_host_cmd_tick; /* tick of DEC_PIC command for the picture */
>> +	u32 dec_seek_start_tick; /* start tick of seeking slices of the picture */
>> +	u32 dec_seek_end_tick; /* end tick of seeking slices of the picture */
>> +	u32 dec_parse_start_tick; /* start tick of parsing slices of the picture */
>> +	u32 dec_parse_end_tick; /* end tick of parsing slices of the picture */
>> +	u32 dec_decode_start_tick; /* start tick of decoding slices of the picture */
>> +	u32 dec_decode_end_tick; /* end tick of decoding slices of the picture */
>> +
>> +	u32 seek_cycle;
>> +	u32 parse_cycle;
>> +	u32 decoded_cycle;
>> +
>> +	s32 ctu_size;
>> +	s32 output_flag;
>> +};
>> +
>> +struct queue_status_info {
>> +	u32 instance_queue_count;
>> +	u32 report_queue_count;
>> +};
>> +
>> +/*
>> + * encode struct and definition
>> + */
>> +
>> +#define MAX_NUM_TEMPORAL_LAYER 7
>> +#define MAX_NUM_SPATIAL_LAYER 3
>> +#define MAX_GOP_NUM 8
>> +
>> +struct custom_gop_pic_param {
>> +	int pic_type; /* A picture type of nth picture in the custom GOP */
>> +	int poc_offset; /* A POC of nth picture in the custom GOP */
>> +	int pic_qp; /* A quantization parameter of nth picture in the custom GOP */
>> +	int use_multi_ref_p; /* use multiref pic for P picture. valid only if PIC_TYPE is P */
>> +	int ref_poc_l0; /* A POC of reference L0 of nth picture in the custom GOP */
>> +	int ref_poc_l1; /* A POC of reference L1 of nth picture in the custom GOP */
>> +	int temporal_id; /* A temporal ID of nth picture in the custom GOP */
>> +};
>> +
>> +struct custom_gop_param {
>> +	int custom_gop_size; /* the size of custom GOP (0~8) */
>> +	struct custom_gop_pic_param pic_param[MAX_GOP_NUM];
>> +};
>> +
>> +struct wave_custom_map_opt {
>> +	int roi_avg_qp; /* it sets an average QP of ROI map. */
>> +	int custom_roi_map_enable; /* it enables ROI map. */
>> +	int custom_lambda_map_enable; /* it enables custom lambda map. */
>> +	int custom_mode_map_enable;
>> +	int custom_coef_drop_enable;
>> +	dma_addr_t addr_custom_map;
>> +};
>> +
>> +struct enc_wave_param {
>> +	/*
>> +	 * A profile indicator (HEVC only)
>> +	 *
>> +	 * 0 : the firmware determines a profile according to internalbitdepth.
>> +	 * 1 : main profile
>> +	 * 2 : main10 profile
>> +	 * 3 : main still picture profile
>> +	 * in AVC encoder, a profile cannot be set by host application. the firmware decides it
>> +	 * based on internalbitdepth. it is HIGH profile for bitdepth of 8 and HIGH10 profile for
>> +	 * bitdepth of 10.
>> +	 */
>> +	int profile;
>> +	int en_still_picture; /* still picture profile */
>> +	int level; /* A level indicator (level * 10) */
>> +	int tier; /* 0=main, 1=high */
>> +	int internal_bit_depth;
>> +	int gop_preset_idx;
>> +	int decoding_refresh_type; /* 0=non-IRAP, 1=CRA, 2=IDR */
>> +	int intra_qp; /* A quantization parameter of intra picture */
>> +	int intra_period; /* A period of intra picture in GOP size */
>> +	int forced_idr_header_enable;
>> +	int conf_win_top; /* A top offset of conformance window */
>> +	int conf_win_bot; /* A bottom offset of conformance window */
>> +	int conf_win_left; /* A left offset of conformance window */
>> +	int conf_win_right; /* A right offset of conformance window */
>> +	int independ_slice_mode_arg;
>> +	int depend_slice_mode_arg;
>> +	int intra_refresh_mode;
>> +	/*
>> +	 * it specifies an intra CTU refresh interval. depending on intra_refresh_mode,
>> +	 * it can mean one of the following.
>> +	 *
>> +	 * the number of consecutive CTU rows for intra_ctu_refresh_mode of 1
>> +	 * the number of consecutive CTU columns for intra_ctu_refresh_mode of 2
>> +	 * A step size in CTU for intra_ctu_refresh_mode of 3
>> +	 * the number of intra ct_us to be encoded in a picture for intra_ctu_refresh_mode of 4
>> +	 */
>> +	int intra_refresh_arg;
>> +	/*
>> +	 * 0 : custom setting
>> +	 * 1 : recommended encoder parameters (slow encoding speed, highest picture quality)
>> +	 * 2 : boost mode (normal encoding speed, moderate picture quality)
>> +	 * 3 : fast mode (fast encoding speed, low picture quality)
>> +	 */
>> +	uint32_t depend_slice_mode : 2;
>> +	uint32_t independ_slice_mode : 1; /* 0=no-multi-slice, 1=slice-in-ctu-number*/
>> +	uint32_t use_recommend_enc_param: 2;
>> +	uint32_t max_num_merge: 2;
>> +	uint32_t scaling_list_enable: 2;
>> +	uint32_t bit_alloc_mode: 2; /* 0=ref-pic-priority, 1=uniform, 2=fixed_bit_ratio */
>> +	int beta_offset_div2: 4; /* it sets beta_offset_div2 for deblocking filter. */
>> +	int tc_offset_div2: 4; /* it sets tc_offset_div3 for deblocking filter. */
>> +	int hvs_qp_scale: 4; /* QP scaling factor for CU QP adjustment if hvs_qp_scale_enable is 1 */
>> +	int hvs_max_delta_qp; /* A maximum delta QP for HVS */
>> +	/*
>> +	 * A fixed bit ratio (1 ~ 255) for each picture of GOP's bit
>> +	 * allocation
>> +	 *
>> +	 * N = 0 ~ (MAX_GOP_SIZE - 1)
>> +	 * MAX_GOP_SIZE = 8
>> +	 *
>> +	 * for instance when MAX_GOP_SIZE is 3, fixed_bit_ratio0, fixed_bit_ratio1, and
>> +	 * fixed_bit_ratio2 can be set as 2, 1, and 1 respectively for
>> +	 * the fixed bit ratio 2:1:1. this is only valid when bit_alloc_mode is 2.
>> +	 */
>> +	u8 fixed_bit_ratio[MAX_GOP_NUM];
>> +	struct custom_gop_param gop_param; /* <<vpuapi_h_custom_gop_param>> */
>> +	u32 num_units_in_tick;
>> +	u32 time_scale;
>> +	u32 num_ticks_poc_diff_one;
>> +	int chroma_cb_qp_offset; /* the value of chroma(cb) QP offset */
>> +	int chroma_cr_qp_offset; /* the value of chroma(cr) QP offset */
>> +	int initial_rc_qp;
>> +	u32 nr_intra_weight_y;
>> +	u32 nr_intra_weight_cb; /* A weight to cb noise level for intra picture (0 ~ 31) */
>> +	u32 nr_intra_weight_cr; /* A weight to cr noise level for intra picture (0 ~ 31) */
>> +	u32 nr_inter_weight_y;
>> +	u32 nr_inter_weight_cb; /* A weight to cb noise level for inter picture (0 ~ 31) */
>> +	u32 nr_inter_weight_cr; /* A weight to cr noise level for inter picture (0 ~ 31) */
>> +	u32 nr_noise_sigma_y; /* Y noise standard deviation if nr_noise_est_enable is 0. */
>> +	u32 nr_noise_sigma_cb;/* cb noise standard deviation if nr_noise_est_enable is 0. */
>> +	u32 nr_noise_sigma_cr;/* cr noise standard deviation if nr_noise_est_enable is 0. */
>> +	u32 bg_thr_diff;
>> +	u32 bg_thr_mean_diff;
>> +	u32 bg_lambda_qp;
>> +	int bg_delta_qp;
>> +	int pu04_delta_rate: 8; /* added to the total cost of 4x4 blocks */
>> +	int pu08_delta_rate: 8; /* added to the total cost of 8x8 blocks */
>> +	int pu16_delta_rate: 8; /* added to the total cost of 16x16 blocks */
>> +	int pu32_delta_rate: 8; /* added to the total cost of 32x32 blocks */
>> +	int pu04_intra_planar_delta_rate: 8;
>> +	int pu04_intra_dc_delta_rate: 8;
>> +	int pu04_intra_angle_delta_rate: 8;
>> +	int pu08_intra_planar_delta_rate: 8;
>> +	int pu08_intra_dc_delta_rate: 8;
>> +	int pu08_intra_angle_delta_rate: 8;
>> +	int pu16_intra_planar_delta_rate: 8;
>> +	int pu16_intra_dc_delta_rate: 8;
>> +	int pu16_intra_angle_delta_rate: 8;
>> +	int pu32_intra_planar_delta_rate: 8;
>> +	int pu32_intra_dc_delta_rate: 8;
>> +	int pu32_intra_angle_delta_rate: 8;
>> +	int cu08_intra_delta_rate: 8;
>> +	int cu08_inter_delta_rate: 8;
>> +	int cu08_merge_delta_rate: 8;
>> +	int cu16_intra_delta_rate: 8;
>> +	int cu16_inter_delta_rate: 8;
>> +	int cu16_merge_delta_rate: 8;
>> +	int cu32_intra_delta_rate: 8;
>> +	int cu32_inter_delta_rate: 8;
>> +	int cu32_merge_delta_rate: 8;
>> +	int coef_clear_disable: 8;
>> +	int min_qp_i; /* A minimum QP of I picture for rate control */
>> +	int max_qp_i; /* A maximum QP of I picture for rate control */
>> +	int min_qp_p; /* A minimum QP of P picture for rate control */
>> +	int max_qp_p; /* A maximum QP of P picture for rate control */
>> +	int min_qp_b; /* A minimum QP of B picture for rate control */
>> +	int max_qp_b; /* A maximum QP of B picture for rate control */
>> +	dma_addr_t custom_lambda_addr; /* it specifies the address of custom lambda map. */
>> +	dma_addr_t user_scaling_list_addr; /* it specifies the address of user scaling list file. */
>> +	int avc_idr_period;/* A period of IDR picture (0 ~ 1024). 0 - implies an infinite period */
>> +	int avc_slice_mode; /* 0=none, 1=slice-in-mb-number */
>> +	int avc_slice_arg;	/* the number of MB for a slice when avc_slice_mode is set with 1 */
>> +	int intra_mb_refresh_mode; /* 0=none, 1=row, 2=column, 3=step-size-in-mb */
>> +	/**
>> +	 * it specifies an intra MB refresh interval. depending on intra_mb_refresh_mode,
>> +	 * it can mean one of the following.
>> +	 *
>> +	 * the number of consecutive MB rows for intra_mb_refresh_mode of 1
>> +	 * the number of consecutive MB columns for intra_mb_refresh_mode of 2
>> +	 * A step size in MB for intra_mb_refresh_mode of 3
>> +	 */
>> +	int intra_mb_refresh_arg;
>> +	int entropy_coding_mode; /* 0=CAVLC, 1=CABAC */
>> +	u32 rc_weight_param;
>> +	u32 rc_weight_buf;
>> +
>> +	/* flags */
>> +	uint32_t lossless_enable: 1; /*enables lossless coding. */
>> +	uint32_t const_intra_pred_flag: 1; /*enables constrained intra prediction. */
>> +	uint32_t tmvp_enable: 1; /*enables temporal motion vector prediction. */
>> +	uint32_t wpp_enable: 1;
>> +	uint32_t disable_deblk: 1; /* it disables in-loop deblocking filtering. */
>> +	uint32_t lf_cross_slice_boundary_enable: 1;
>> +	uint32_t skip_intra_trans: 1;
>> +	uint32_t sao_enable: 1; /* it enables SAO (sample adaptive offset). */
>> +	uint32_t intra_nx_n_enable: 1; /* it enables intra nx_n p_us. */
>> +	uint32_t cu_level_rc_enable: 1; /* it enable CU level rate control. */
>> +	uint32_t hvs_qp_enable: 1; /* enable CU QP adjustment for subjective quality enhancement. */
>> +	uint32_t roi_enable: 1; /* it enables ROI map. NOTE: it is valid when rate control is on. */
>> +	uint32_t nr_y_enable: 1; /* it enables noise reduction algorithm to Y component. */
>> +	uint32_t nr_noise_est_enable: 1;
>> +	uint32_t nr_cb_enable: 1; /* it enables noise reduction algorithm to cb component. */
>> +	uint32_t nr_cr_enable: 1; /* it enables noise reduction algorithm to cr component. */
>> +	uint32_t use_long_term: 1; /* it enables long-term reference function. */
>> +	uint32_t monochrome_enable: 1; /* it enables monochrom encoding mode. */
>> +	uint32_t strong_intra_smooth_enable: 1; /* it enables strong intra smoothing. */
>> +	uint32_t weight_pred_enable: 1; /* it enables to use weighted prediction.*/
>> +	uint32_t bg_detect_enable: 1; /* it enables background detection. */
>> +	uint32_t custom_lambda_enable: 1; /* it enables custom lambda table. */
>> +	uint32_t custom_md_enable: 1; /* it enables custom mode decision. */
>> +	uint32_t rdo_skip: 1;	/* it skips RDO(rate distortion optimization). */
>> +	uint32_t lambda_scaling_enable: 1;	/* it enables lambda scaling using custom GOP. */
>> +	uint32_t transform8x8_enable: 1; /* it enables 8x8 intra prediction and 8x8 transform. */
>> +	uint32_t mb_level_rc_enable: 1;			/* it enables MB-level rate control. */
>> +	uint32_t s2fme_disable: 1; /* it disables s2me_fme (only for AVC encoder). */
>> +};
>> +
>> +struct enc_sub_frame_sync_config {
>> +	u32 sub_frame_sync_mode; /* 0=wire-based, 1=register-based */
>> +	u32 sub_frame_sync_on;
>> +};
>> +
>> +struct enc_open_param {
>> +	dma_addr_t bitstream_buffer;
>> +	u32 bitstream_buffer_size;
>> +	int ring_buffer_enable;
>> +	int pic_width; /* the width of a picture to be encoded in unit of sample. */
>> +	int pic_height; /* the height of a picture to be encoded in unit of sample. */
>> +	int frame_rate_info;/* desired fps */
>> +	int vbv_buffer_size;
>> +	int bit_rate; /* target bitrate in bps */
>> +	u32 rc_enable : 1; /* rate control */
>> +	struct enc_wave_param wave_param;
>> +	int cbcr_interleave;
>> +	int cbcr_order;
>> +	int stream_endian;
>> +	int source_endian;
>> +	int line_buf_int_en;
>> +	int packed_format; /* <<vpuapi_h_packed_format_num>> */
>> +	enum frame_buffer_format src_format;
>> +	enum frame_buffer_format output_format;
>> +	int nv21;
>> +	bool enable_pts; /* an enable flag to report PTS(presentation timestamp) */
>> +	bool enable_non_ref_fbc_write;
>> +	int sub_frame_sync_enable;
>> +	int sub_frame_sync_mode;
>> +	u32 enc_hrd_rbsp_in_vps; /* it encodes the HRD syntax rbsp into VPS. */
>> +	u32 hrd_rbsp_data_size; /* the bit size of the HRD rbsp data */
>> +	dma_addr_t hrd_rbsp_data_addr; /* the address of the HRD rbsp data */
>> +	u32 encode_vui_rbsp;
>> +	u32 vui_rbsp_data_size; /* the bit size of the VUI rbsp data */
>> +	dma_addr_t vui_rbsp_data_addr; /* the address of the VUI rbsp data */
>> +};
>> +
>> +struct enc_initial_info {
>> +	int min_frame_buffer_count; /* minimum number of frame buffer */
>> +	int min_src_frame_count; /* minimum number of source buffer */
>> +	int max_latency_pictures; /* maximum number of picture latency */
>> +	int seq_init_err_reason; /* error information */
>> +	int warn_info; /* warn information */
>> +	u32 vlc_buf_size; /* the size of task buffer */
>> +	u32 param_buf_size; /* the size of task buffer */
>> +};
>> +
>> +struct enc_code_opt {
>> +	int implicit_header_encode;
>> +	int encode_vcl; /* A flag to encode VCL nal unit explicitly */
>> +	int encode_vps; /* A flag to encode VPS nal unit explicitly */
>> +	int encode_sps; /* A flag to encode SPS nal unit explicitly */
>> +	int encode_pps; /* A flag to encode PPS nal unit explicitly */
>> +	int encode_aud; /* A flag to encode AUD nal unit explicitly */
>> +	int encode_eos;
>> +	int encode_eob;
>> +	int encode_vui; /* A flag to encode VUI nal unit explicitly */
>> +};
>> +
>> +struct enc_param {
>> +	struct frame_buffer *source_frame;
>> +	int skip_picture : 1;
>> +	dma_addr_t pic_stream_buffer_addr;
>> +	int pic_stream_buffer_size;
>> +	int force_pic_qp_enable; /* flag used to force picture quantization parameter */
>> +	int force_pic_qp_i;
>> +	int force_pic_qp_p;
>> +	int force_pic_qp_b;
>> +	int force_pic_type_enable; /* A flag to use a force picture type */
>> +	int force_pic_type;
>> +	int src_idx; /* A source frame buffer index */
>> +	int src_end_flag;
>> +	struct enc_code_opt code_option;
>> +	u32 use_cur_src_as_longterm_pic;
>> +	u32 use_longterm_ref;
>> +	u64 pts; /* the presentation timestamp (PTS) of input source */
>> +	struct wave_custom_map_opt custom_map_opt;
>> +	u32 wp_pix_sigma_y; /* pixel variance of Y component for weighted prediction */
>> +	u32 wp_pix_sigma_cb; /* pixel variance of cb component for weighted prediction */
>> +	u32 wp_pix_sigma_cr; /* pixel variance of cr component for weighted prediction */
>> +	u32 wp_pix_mean_y; /* pixel mean value of Y component for weighted prediction */
>> +	u32 wp_pix_mean_cb; /* pixel mean value of cb component for weighted prediction */
>> +	u32 wp_pix_mean_cr; /* pixel mean value of cr component for weighted prediction */
>> +	u32 force_all_ctu_coef_drop_enable; /* it forces all coefficients to be zero after TQ . */
>> +};
>> +
>> +struct enc_output_info {
>> +	dma_addr_t bitstream_buffer;
>> +	u32 bitstream_size; /* the byte size of encoded bitstream */
>> +	int bitstream_wrap_around;
>> +	int pic_type; /* <<vpuapi_h_pic_type>> */
>> +	int num_of_slices; /* the number of slices of the currently being encoded picture */
>> +	int recon_frame_index;
>> +	struct frame_buffer recon_frame;
>> +	int rd_ptr;
>> +	int wr_ptr;
>> +	int pic_skipped; /* whether the current encoding has been skipped or not */
>> +	int num_of_intra; /* the number of intra coded block */
>> +	int num_of_merge; /* the number of merge block in 8x8 */
>> +	int num_of_skip_block; /* the number of skip block in 8x8 */
>> +	int avg_ctu_qp; /* the average value of CTU q_ps */
>> +	int enc_pic_byte; /* the number of encoded picture bytes */
>> +	int enc_gop_pic_idx; /* the GOP index of the currently encoded picture */
>> +	int enc_pic_poc; /* the POC(picture order count) of the currently encoded picture */
>> +	int release_src_flag; /* the source buffer indicator of the encoded pictures */
>> +	int enc_src_idx; /* the source buffer index of the currently encoded picture */
>> +	int enc_vcl_nut;
>> +	int enc_pic_cnt; /* the encoded picture number */
>> +	int error_reason; /* the error reason of the currently encoded picture */
>> +	int warn_info; /* the warning information of the currently encoded picture */
>> +	int frame_cycle; /* the param for reporting the cycle number of encoding one frame.*/
>> +	u64 pts;
>> +	u32 enc_host_cmd_tick; /* tick of ENC_PIC command for the picture */
>> +	u32 enc_prepare_start_tick; /* start tick of preparing slices of the picture */
>> +	u32 enc_prepare_end_tick; /* end tick of preparing slices of the picture */
>> +	u32 enc_processing_start_tick; /* start tick of processing slices of the picture */
>> +	u32 enc_processing_end_tick; /* end tick of processing slices of the picture */
>> +	u32 enc_encode_start_tick; /* start tick of encoding slices of the picture */
>> +	u32 enc_encode_end_tick; /* end tick of encoding slices of the picture */
>> +	u32 prepare_cycle; /* the number of cycles for preparing slices of a picture */
>> +	u32 processing; /* the number of cycles for processing slices of a picture */
>> +	u32 encoded_cycle; /* the number of cycles for encoding slices of a picture */
>> +	u32 pic_distortion_low;
>> +	u32 pic_distortion_high;
>> +};
>> +
>> +enum ENC_PIC_CODE_OPTION {
>> +	CODEOPT_ENC_HEADER_IMPLICIT = (1 << 0),
>> +	CODEOPT_ENC_VCL = (1 << 1), /* A flag to encode VCL nal unit explicitly */
>> +};
>> +
>> +enum GOP_PRESET_IDX {
>> +	PRESET_IDX_CUSTOM_GOP = 0, /* user defined GOP structure */
>> +	PRESET_IDX_ALL_I = 1, /* all intra, gopsize = 1 */
>> +	PRESET_IDX_IPP = 2, /* consecutive P, cyclic gopsize = 1 */
>> +	PRESET_IDX_IBBB = 3, /* consecutive B, cyclic gopsize = 1 */
>> +	PRESET_IDX_IBPBP = 4, /* gopsize = 2 */
>> +	PRESET_IDX_IBBBP = 5, /* gopsize = 4 */
>> +	PRESET_IDX_IPPPP = 6, /* consecutive P, cyclic gopsize = 4 */
>> +	PRESET_IDX_IBBBB = 7, /* consecutive B, cyclic gopsize = 4 */
>> +	PRESET_IDX_RA_IB = 8, /* random access, cyclic gopsize = 8 */
>> +	PRESET_IDX_IPP_SINGLE = 9, /* consecutive P, cyclic gopsize = 1, with single ref */
>> +};
>> +
>> +struct sec_axi_info {
>> +	struct {
>> +		int use_ip_enable;
>> +		int use_lf_row_enable;
>> +		int use_bit_enable;
>> +		int use_enc_rdo_enable;
>> +		int use_enc_lf_enable;
>> +	} wave;
>> +	int buf_size;
>> +	dma_addr_t buf_base;
>> +};
>> +
>> +struct dec_info {
>> +	struct dec_open_param open_param;
>> +	struct dec_initial_info initial_info;
>> +	struct dec_initial_info new_seq_info; /* temporal new sequence information */
>> +	dma_addr_t stream_wr_ptr;
>> +	dma_addr_t stream_rd_ptr;
>> +	int stream_endflag;
>> +	int frame_display_flag;
>> +	dma_addr_t stream_buf_start_addr;
>> +	dma_addr_t stream_buf_end_addr;
>> +	int stream_buf_size;
>> +	struct vpu_buf vb_mv[MAX_REG_FRAME];
>> +	struct vpu_buf vb_fbc_y_tbl[MAX_REG_FRAME];
>> +	struct vpu_buf vb_fbc_c_tbl[MAX_REG_FRAME];
>> +	int num_fbs_for_decoding;
>> +	int num_fbs_for_wtl;
>> +	int stride;
>> +	int rotation_enable;
>> +	int mirror_enable;
>> +	int dering_enable;
>> +	enum mirror_direction mirror_direction;
>> +	int rotation_angle;
>> +	struct frame_buffer rotator_output;
>> +	int rotator_stride;
>> +	int initial_info_obtained;
>> +	struct sec_axi_info sec_axi_info;
>> +	int seq_init_escape;
>> +	dma_addr_t user_data_buf_addr;
>> +	u32 user_data_enable;
>> +	int user_data_buf_size;
>> +	int frame_start_pos;
>> +	int frame_end_pos;
>> +	struct vpu_buf vb_work;
>> +	struct vpu_buf vb_task;
>> +	struct dec_output_info dec_out_info[WAVE5_MAX_FBS];
>> +	int reorder_enable;
>> +	int thumbnail_mode;
>> +	int seq_change_mask;
>> +	enum temporal_id_mode temp_id_select_mode;
>> +	s32 target_temp_id;
>> +	s32 target_spatial_id;
>> +	s32 instance_queue_count;
>> +	s32 report_queue_count;
>> +	u32 first_cycle_check;
>> +	u32 cycle_per_tick;
>> +	u32 product_code;
>> +	u32 vlc_buf_size;
>> +	u32 param_buf_size;
>> +};
>> +
>> +struct enc_info {
>> +	struct enc_open_param open_param;
>> +	struct enc_initial_info initial_info;
>> +	dma_addr_t stream_rd_ptr;
>> +	dma_addr_t stream_wr_ptr;
>> +	dma_addr_t stream_buf_start_addr;
>> +	dma_addr_t stream_buf_end_addr;
>> +	int stream_buf_size;
>> +	int num_frame_buffers;
>> +	int stride;
>> +	int rotation_enable;
>> +	int mirror_enable;
>> +	enum mirror_direction mirror_direction;
>> +	int rotation_angle;
>> +	int initial_info_obtained;
>> +	int ring_buffer_enable;
>> +	struct sec_axi_info sec_axi_info;
>> +	struct enc_sub_frame_sync_config sub_frame_sync_config;
>> +	int line_buf_int_en;
>> +	struct vpu_buf vb_work;
>> +	struct vpu_buf vb_mv; /* col_mv buffer */
>> +	struct vpu_buf vb_fbc_y_tbl; /* FBC luma table buffer */
>> +	struct vpu_buf vb_fbc_c_tbl; /* FBC chroma table buffer */
>> +	struct vpu_buf vb_sub_sam_buf; /* sub-sampled buffer for ME */
>> +	struct vpu_buf vb_task;
>> +	u64 cur_pts; /* current timestamp in 90_k_hz */
>> +	u64 pts_map[32]; /* PTS mapped with source frame index */
>> +	u32 instance_queue_count;
>> +	u32 report_queue_count;
>> +	u32 first_cycle_check;
>> +	u32 cycle_per_tick;
>> +	u32 product_code;
>> +	u32 vlc_buf_size;
>> +	u32 param_buf_size;
>> +};
>> +
>> +struct vpu_device {
>> +	struct device *dev;
>> +	struct v4l2_device v4l2_dev;
>> +	struct v4l2_m2m_dev *v4l2_m2m_dev;
>> +	struct video_device *video_dev_dec;
>> +	struct video_device *video_dev_enc;
>> +	struct mutex dev_lock; /* the lock for the src,dst v4l2 queues */
>> +	struct mutex	 hw_lock; /* lock hw configurations */
>> +	struct kfifo irq_status;
>> +	int irq;
>> +	struct completion irq_done;
>> +	enum product_id	 product;
>> +	struct vpu_attr	 attr;
>> +	struct vpu_buf common_mem;
>> +	u32 last_performance_cycles;
>> +	struct vpu_buf sram_buf;
>> +	struct vpu_buf vdb_register;
>> +	int product_code;
>> +	struct ida inst_ida;
>> +	struct clk *clk;
>> +};
>> +
>> +struct vpu_instance;
>> +
>> +struct vpu_instance_ops {
>> +	void (*start_process)(struct vpu_instance *inst);
>> +	void (*stop_process)(struct vpu_instance *inst);
>> +	void (*finish_process)(struct vpu_instance *inst);
>> +};
>> +
>> +struct vpu_instance {
>> +	struct v4l2_fh v4l2_fh;
>> +	struct v4l2_ctrl_handler v4l2_ctrl_hdl;
>> +	struct vpu_device *dev;
>> +
>> +	struct v4l2_pix_format_mplane src_fmt;
>> +	struct v4l2_pix_format_mplane dst_fmt;
>> +	enum v4l2_colorspace colorspace;
>> +	enum v4l2_xfer_func xfer_func;
>> +	enum v4l2_ycbcr_encoding ycbcr_enc;
>> +	enum v4l2_quantization quantization;
>> +	enum v4l2_hsv_encoding hsv_enc;
>> +
>> +	enum vpu_instance_state state;
>> +	enum vpu_instance_type type;
>> +	const struct vpu_instance_ops *ops;
>> +
>> +	enum wave_std		 std;
>> +	int			 id;
>> +	union {
>> +		struct enc_info enc_info;
>> +		struct dec_info dec_info;
>> +	} *codec_info;
>> +	struct frame_buffer frame_buf[MAX_REG_FRAME];
>> +	struct vpu_buf frame_vbuf[MAX_REG_FRAME];
>> +	u32 min_dst_frame_buf_count;
>> +	u32 queued_src_buf_num;
>> +	u32 queued_dst_buf_num;
>> +	u64 timestamp;
>> +
>> +	spinlock_t bitstream_lock; /* lock the src buf queue of the m2m ctx */
>> +	struct vpu_buf bitstream_vbuf;
>> +	bool thumbnail_mode;
>> +
>> +	unsigned int min_src_frame_buf_count;
>> +	unsigned int rot_angle;
>> +	unsigned int mirror_direction;
>> +	unsigned int profile;
>> +	unsigned int level;
>> +	unsigned int bit_depth;
>> +	unsigned int frame_rate;
>> +	unsigned int vbv_buf_size;
>> +	unsigned int min_qp_i;
>> +	unsigned int max_qp_i;
>> +	unsigned int min_qp_p;
>> +	unsigned int max_qp_p;
>> +	unsigned int min_qp_b;
>> +	unsigned int max_qp_b;
>> +};
>> +
>> +void wave5_vdi_write_register(struct vpu_device *vpu_device, unsigned int addr, unsigned int data);
>> +unsigned int wave5_vdi_read_register(struct vpu_device *vpu_dev, unsigned int addr);
>> +int wave5_vdi_clear_memory(struct vpu_device *vpu_dev, struct vpu_buf *vb);
>> +int wave5_vdi_allocate_dma_memory(struct vpu_device *vpu_dev, struct vpu_buf *vb);
>> +int wave5_vdi_write_memory(struct vpu_device *vpu_dev, struct vpu_buf *vb, size_t offset, unsigned char *data, int len, int endian);
>> +int wave5_vdi_convert_endian(struct vpu_device *vpu_dev, unsigned int endian);
>> +void wave5_vdi_free_dma_memory(struct vpu_device *vpu_dev, struct vpu_buf *vb);
>> +
>> +int wave5_vpu_init_with_bitcode(struct device *dev, const uint16_t *bitcode, uint32_t size_in_word);
>> +void wave5_vpu_clear_interrupt_ex(struct vpu_instance *inst, int32_t intr_flag);
>> +int wave5_vpu_get_version_info(struct device *dev, uint32_t *version_info, uint32_t *revision, uint32_t *product_id);
>> +int wave5_vpu_dec_open_api(struct vpu_instance *vpu_inst, struct dec_open_param *pop);
>> +int wave5_vpu_dec_close(struct vpu_instance *inst, u32 *fail_res);
>> +int wave5_vpu_dec_issue_seq_init(struct vpu_instance *inst);
>> +int wave5_vpu_dec_complete_seq_init(struct vpu_instance *inst, struct dec_initial_info *info);
>> +int wave5_vpu_dec_register_frame_buffer_ex(struct vpu_instance *inst, int num_of_dec_fbs,
>> +					   int num_of_display_fbs, int stride, int height, int map_type);
>> +int wave5_vpu_dec_start_one_frame(struct vpu_instance *inst, struct dec_param *param, u32 *res_fail);
>> +int wave5_vpu_dec_get_output_info(struct vpu_instance *inst, struct dec_output_info *info);
>> +int wave5_vpu_dec_give_command(struct vpu_instance *inst, enum codec_command cmd, void *parameter);
>> +int wave5_vpu_dec_get_bitstream_buffer(struct vpu_instance *inst, dma_addr_t *prd_prt,
>> +				       dma_addr_t *pwr_ptr, uint32_t *size);
>> +int wave5_vpu_dec_update_bitstream_buffer(struct vpu_instance *inst, int size);
>> +int wave5_vpu_dec_clr_disp_flag(struct vpu_instance *inst, int index);
>> +
>> +int wave5_vpu_enc_open_api(struct vpu_instance *vpu_inst, struct enc_open_param *enc_op_param);
>> +int wave5_vpu_enc_close(struct vpu_instance *inst, u32 *fail_res);
>> +int wave5_vpu_enc_issue_seq_init(struct vpu_instance *inst);
>> +int wave5_vpu_enc_complete_seq_init(struct vpu_instance *inst, struct enc_initial_info *info);
>> +int wave5_vpu_enc_register_frame_buffer(struct vpu_instance *inst, int num, unsigned int stride,
>> +					int height, enum tiled_map_type map_type);
>> +int wave5_vpu_enc_start_one_frame(struct vpu_instance *inst, struct enc_param *param, u32 *fail_res);
>> +int wave5_vpu_enc_get_output_info(struct vpu_instance *inst, struct enc_output_info *info);
>> +int wave5_vpu_enc_give_command(struct vpu_instance *inst, enum codec_command cmd, void *parameter);
>> +
>> +#endif
>> +
>> diff --git a/drivers/staging/media/wave5/vpuconfig.h b/drivers/staging/media/wave5/vpuconfig.h
>> new file mode 100644
>> index 000000000000..4c71799e440e
>> --- /dev/null
>> +++ b/drivers/staging/media/wave5/vpuconfig.h
>> @@ -0,0 +1,85 @@
>> +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
>> +/*
>> + * Wave5 series multi-standard codec IP - product config definitions
>> + *
>> + * Copyright (C) 2021 CHIPS&MEDIA INC
>> + */
>> +
>> +#ifndef _VPU_CONFIG_H_
>> +#define _VPU_CONFIG_H_
>> +
>> +#define WAVE517_CODE                    0x5170
>> +#define WAVE537_CODE                    0x5370
>> +#define WAVE511_CODE                    0x5110
>> +#define WAVE521_CODE                    0x5210
>> +#define WAVE521C_CODE                   0x521c
>> +#define WAVE521C_DUAL_CODE              0x521d  // wave521 dual core
>> +#define WAVE521E1_CODE                  0x5211
>> +
>> +#define PRODUCT_CODE_W_SERIES(x) ({					\
>> +		int c = x;						\
>> +		((c) == WAVE517_CODE ||	(c) == WAVE537_CODE ||		\
>> +		 (c) == WAVE511_CODE || (c) == WAVE521_CODE ||		\
>> +		 (c) == WAVE521E1_CODE || (c) == WAVE521C_CODE ||	\
>> +		 (c) == WAVE521C_DUAL_CODE);				\
>> +})
>> +
>> +#define WAVE517_WORKBUF_SIZE            (2 * 1024 * 1024)
>> +#define WAVE521ENC_WORKBUF_SIZE         (128 * 1024)      //HEVC 128K, AVC 40K
>> +#define WAVE521DEC_WORKBUF_SIZE         (1784 * 1024)
>> +
>> +#define MAX_NUM_INSTANCE                32
>> +
>> +#define W5_MIN_ENC_PIC_WIDTH            256
>> +#define W5_MIN_ENC_PIC_HEIGHT           128
>> +#define W5_MAX_ENC_PIC_WIDTH            8192
>> +#define W5_MAX_ENC_PIC_HEIGHT           8192
>> +
>> +//  application specific configuration
>> +#define VPU_ENC_TIMEOUT                 60000
>> +#define VPU_DEC_TIMEOUT                 60000
>> +#define VPU_BUSY_CHECK_TIMEOUT          10000
>> +
>> +#define HOST_ENDIAN                     VDI_128BIT_LITTLE_ENDIAN
>> +#define VPU_FRAME_ENDIAN                HOST_ENDIAN
>> +#define VPU_STREAM_ENDIAN               HOST_ENDIAN
>> +#define VPU_USER_DATA_ENDIAN            HOST_ENDIAN
>> +#define VPU_SOURCE_ENDIAN               HOST_ENDIAN
>> +
>> +// for WAVE encoder
>> +#define USE_SRC_PRP_AXI         0
>> +#define USE_SRC_PRI_AXI         1
>> +#define DEFAULT_SRC_AXI         USE_SRC_PRP_AXI
>> +
>> +/************************************************************************/
>> +/* VPU COMMON MEMORY                                                    */
>> +/************************************************************************/
>> +#define VLC_BUF_NUM                     (3)
>> +
>> +#define COMMAND_QUEUE_DEPTH             (4)
>> +
>> +#define W5_REMAP_INDEX0                 0
>> +#define W5_REMAP_INDEX1                 1
>> +#define W5_REMAP_MAX_SIZE               (1024 * 1024)
>> +
>> +#define WAVE5_MAX_CODE_BUF_SIZE         (2 * 1024 * 1024)
>> +#define WAVE5_TEMPBUF_OFFSET            WAVE5_MAX_CODE_BUF_SIZE
>> +#define WAVE5_TEMPBUF_SIZE              (1024 * 1024)
>> +
>> +#define SIZE_COMMON                 (WAVE5_MAX_CODE_BUF_SIZE + WAVE5_TEMPBUF_SIZE)
>> +
>> +//=====4. VPU REPORT MEMORY  ======================//
>> +
>> +#define WAVE5_UPPER_PROC_AXI_ID     0x0
>> +
>> +#define WAVE5_PROC_AXI_ID           0x0
>> +#define WAVE5_PRP_AXI_ID            0x0
>> +#define WAVE5_FBD_Y_AXI_ID          0x0
>> +#define WAVE5_FBC_Y_AXI_ID          0x0
>> +#define WAVE5_FBD_C_AXI_ID          0x0
>> +#define WAVE5_FBC_C_AXI_ID          0x0
>> +#define WAVE5_SEC_AXI_ID            0x0
>> +#define WAVE5_PRI_AXI_ID            0x0
>> +
>> +#endif  /* _VPU_CONFIG_H_ */
>> +
>> diff --git a/drivers/staging/media/wave5/vpuerror.h b/drivers/staging/media/wave5/vpuerror.h
>> new file mode 100644
>> index 000000000000..0ece5bc517bd
>> --- /dev/null
>> +++ b/drivers/staging/media/wave5/vpuerror.h
>> @@ -0,0 +1,455 @@
>> +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
>> +/*
>> + * Wave5 series multi-standard codec IP - error values
>> + *
>> + * Copyright (C) 2021 CHIPS&MEDIA INC
>> + */
>> +
>> +#ifndef ERROR_CODE_H_INCLUDED
>> +#define ERROR_CODE_H_INCLUDED
>> +
>> +/*
>> + * WAVE5
>> + */
>> +
>> +/************************************************************************/
>> +/* WAVE5 COMMON SYSTEM ERROR (FAIL_REASON)                              */
>> +/************************************************************************/
>> +#define WAVE5_SYSERR_QUEUEING_FAIL                                     0x00000001
>> +#define WAVE5_SYSERR_ACCESS_VIOLATION_HW                               0x00000040
>> +#define WAVE5_SYSERR_BUS_ERROR                                         0x00000200
>> +#define WAVE5_SYSERR_DOUBLE_FAULT                                      0x00000400
>> +#define WAVE5_SYSERR_RESULT_NOT_READY                                  0x00000800
>> +#define WAVE5_SYSERR_VPU_STILL_RUNNING                                 0x00001000
>> +#define WAVE5_SYSERR_UNKNOWN_CMD                                       0x00002000
>> +#define WAVE5_SYSERR_UNKNOWN_CODEC_STD                                 0x00004000
>> +#define WAVE5_SYSERR_UNKNOWN_QUERY_OPTION                              0x00008000
>> +#define WAVE5_SYSERR_VLC_BUF_FULL                                      0x00010000
>> +#define WAVE5_SYSERR_WATCHDOG_TIMEOUT                                  0x00020000
>> +#define WAVE5_SYSERR_VCPU_TIMEOUT                                      0x00080000
>> +#define WAVE5_SYSERR_TEMP_SEC_BUF_OVERFLOW                             0x00200000
>> +#define WAVE5_SYSERR_NEED_MORE_TASK_BUF                                0x00400000
>> +#define WAVE5_SYSERR_PRESCAN_ERR                                       0x00800000
>> +#define WAVE5_SYSERR_ENC_GBIN_OVERCONSUME                              0x01000000
>> +#define WAVE5_SYSERR_ENC_MAX_ZERO_DETECT                               0x02000000
>> +#define WAVE5_SYSERR_ENC_LVL_FIRST_ERROR                               0x04000000
>> +#define WAVE5_SYSERR_ENC_EG_RANGE_OVER                                 0x08000000
>> +#define WAVE5_SYSERR_ENC_IRB_FRAME_DROP                                0x10000000
>> +#define WAVE5_SYSERR_INPLACE_V                                         0x20000000
>> +#define WAVE5_SYSERR_FATAL_VPU_HANGUP                                  0xf0000000
>> +
>> +/************************************************************************/
>> +/* WAVE5 COMMAND QUEUE ERROR (FAIL_REASON)                              */
>> +/************************************************************************/
>> +#define WAVE5_CMDQ_ERR_NOT_QUEABLE_CMD                                 0x00000001
>> +#define WAVE5_CMDQ_ERR_SKIP_MODE_ENABLE                                0x00000002
>> +#define WAVE5_CMDQ_ERR_INST_FLUSHING                                   0x00000003
>> +#define WAVE5_CMDQ_ERR_INST_INACTIVE                                   0x00000004
>> +#define WAVE5_CMDQ_ERR_QUEUE_FAIL                                      0x00000005
>> +#define WAVE5_CMDQ_ERR_CMD_BUF_FULL                                    0x00000006
>> +
>> +/************************************************************************/
>> +/* WAVE5 ERROR ON DECODER (ERR_INFO)                                    */
>> +/************************************************************************/
>> +// HEVC
>> +#define HEVC_SPSERR_SEQ_PARAMETER_SET_ID                               0x00001000
>> +#define HEVC_SPSERR_CHROMA_FORMAT_IDC                                  0x00001001
>> +#define HEVC_SPSERR_PIC_WIDTH_IN_LUMA_SAMPLES                          0x00001002
>> +#define HEVC_SPSERR_PIC_HEIGHT_IN_LUMA_SAMPLES                         0x00001003
>> +#define HEVC_SPSERR_CONF_WIN_LEFT_OFFSET                               0x00001004
>> +#define HEVC_SPSERR_CONF_WIN_RIGHT_OFFSET                              0x00001005
>> +#define HEVC_SPSERR_CONF_WIN_TOP_OFFSET                                0x00001006
>> +#define HEVC_SPSERR_CONF_WIN_BOTTOM_OFFSET                             0x00001007
>> +#define HEVC_SPSERR_BIT_DEPTH_LUMA_MINUS8                              0x00001008
>> +#define HEVC_SPSERR_BIT_DEPTH_CHROMA_MINUS8                            0x00001009
>> +#define HEVC_SPSERR_LOG2_MAX_PIC_ORDER_CNT_LSB_MINUS4                  0x0000100A
>> +#define HEVC_SPSERR_SPS_MAX_DEC_PIC_BUFFERING                          0x0000100B
>> +#define HEVC_SPSERR_SPS_MAX_NUM_REORDER_PICS                           0x0000100C
>> +#define HEVC_SPSERR_SPS_MAX_LATENCY_INCREASE                           0x0000100D
>> +#define HEVC_SPSERR_LOG2_MIN_LUMA_CODING_BLOCK_SIZE_MINUS3             0x0000100E
>> +#define HEVC_SPSERR_LOG2_DIFF_MAX_MIN_LUMA_CODING_BLOCK_SIZE           0x0000100F
>> +#define HEVC_SPSERR_LOG2_MIN_TRANSFORM_BLOCK_SIZE_MINUS2               0x00001010
>> +#define HEVC_SPSERR_LOG2_DIFF_MAX_MIN_TRANSFORM_BLOCK_SIZE             0x00001011
>> +#define HEVC_SPSERR_MAX_TRANSFORM_HIERARCHY_DEPTH_INTER                0x00001012
>> +#define HEVC_SPSERR_MAX_TRANSFORM_HIERARCHY_DEPTH_INTRA                0x00001013
>> +#define HEVC_SPSERR_SCALING_LIST                                       0x00001014
>> +#define HEVC_SPSERR_LOG2_DIFF_MIN_PCM_LUMA_CODING_BLOCK_SIZE_MINUS3    0x00001015
>> +#define HEVC_SPSERR_LOG2_DIFF_MAX_MIN_PCM_LUMA_CODING_BLOCK_SIZE       0x00001016
>> +#define HEVC_SPSERR_NUM_SHORT_TERM_REF_PIC_SETS                        0x00001017
>> +#define HEVC_SPSERR_NUM_LONG_TERM_REF_PICS_SPS                         0x00001018
>> +#define HEVC_SPSERR_GBU_PARSING_ERROR                                  0x00001019
>> +#define HEVC_SPSERR_EXTENSION_FLAG                                     0x0000101A
>> +#define HEVC_SPSERR_VUI_ERROR                                          0x0000101B
>> +#define HEVC_SPSERR_ACTIVATE_SPS                                       0x0000101C
>> +#define HEVC_SPSERR_PROFILE_SPACE                                      0x0000101D
>> +#define HEVC_PPSERR_PPS_PIC_PARAMETER_SET_ID                           0x00002000
>> +#define HEVC_PPSERR_PPS_SEQ_PARAMETER_SET_ID                           0x00002001
>> +#define HEVC_PPSERR_NUM_REF_IDX_L0_DEFAULT_ACTIVE_MINUS1               0x00002002
>> +#define HEVC_PPSERR_NUM_REF_IDX_L1_DEFAULT_ACTIVE_MINUS1               0x00002003
>> +#define HEVC_PPSERR_INIT_QP_MINUS26                                    0x00002004
>> +#define HEVC_PPSERR_DIFF_CU_QP_DELTA_DEPTH                             0x00002005
>> +#define HEVC_PPSERR_PPS_CB_QP_OFFSET                                   0x00002006
>> +#define HEVC_PPSERR_PPS_CR_QP_OFFSET                                   0x00002007
>> +#define HEVC_PPSERR_NUM_TILE_COLUMNS_MINUS1                            0x00002008
>> +#define HEVC_PPSERR_NUM_TILE_ROWS_MINUS1                               0x00002009
>> +#define HEVC_PPSERR_COLUMN_WIDTH_MINUS1                                0x0000200A
>> +#define HEVC_PPSERR_ROW_HEIGHT_MINUS1                                  0x0000200B
>> +#define HEVC_PPSERR_PPS_BETA_OFFSET_DIV2                               0x0000200C
>> +#define HEVC_PPSERR_PPS_TC_OFFSET_DIV2                                 0x0000200D
>> +#define HEVC_PPSERR_SCALING_LIST                                       0x0000200E
>> +#define HEVC_PPSERR_LOG2_PARALLEL_MERGE_LEVEL_MINUS2                   0x0000200F
>> +#define HEVC_PPSERR_NUM_TILE_COLUMNS_RANGE_OUT                         0x00002010
>> +#define HEVC_PPSERR_NUM_TILE_ROWS_RANGE_OUT                            0x00002011
>> +#define HEVC_PPSERR_MORE_RBSP_DATA_ERROR                               0x00002012
>> +#define HEVC_PPSERR_PPS_PIC_PARAMETER_SET_ID_RANGE_OUT                 0x00002013
>> +#define HEVC_PPSERR_PPS_SEQ_PARAMETER_SET_ID_RANGE_OUT                 0x00002014
>> +#define HEVC_PPSERR_NUM_REF_IDX_L0_DEFAULT_ACTIVE_MINUS1_RANGE_OUT     0x00002015
>> +#define HEVC_PPSERR_NUM_REF_IDX_L1_DEFAULT_ACTIVE_MINUS1_RANGE_OUT     0x00002016
>> +#define HEVC_PPSERR_PPS_CB_QP_OFFSET_RANGE_OUT                         0x00002017
>> +#define HEVC_PPSERR_PPS_CR_QP_OFFSET_RANGE_OUT                         0x00002018
>> +#define HEVC_PPSERR_COLUMN_WIDTH_MINUS1_RANGE_OUT                      0x00002019
>> +#define HEVC_PPSERR_ROW_HEIGHT_MINUS1_RANGE_OUT                        0x00002020
>> +#define HEVC_PPSERR_PPS_BETA_OFFSET_DIV2_RANGE_OUT                     0x00002021
>> +#define HEVC_PPSERR_PPS_TC_OFFSET_DIV2_RANGE_OUT                       0x00002022
>> +#define HEVC_SHERR_SLICE_PIC_PARAMETER_SET_ID                          0x00003000
>> +#define HEVC_SHERR_ACTIVATE_PPS                                        0x00003001
>> +#define HEVC_SHERR_ACTIVATE_SPS                                        0x00003002
>> +#define HEVC_SHERR_SLICE_TYPE                                          0x00003003
>> +#define HEVC_SHERR_FIRST_SLICE_IS_DEPENDENT_SLICE                      0x00003004
>> +#define HEVC_SHERR_SHORT_TERM_REF_PIC_SET_SPS_FLAG                     0x00003005
>> +#define HEVC_SHERR_SHORT_TERM_REF_PIC_SET                              0x00003006
>> +#define HEVC_SHERR_SHORT_TERM_REF_PIC_SET_IDX                          0x00003007
>> +#define HEVC_SHERR_NUM_LONG_TERM_SPS                                   0x00003008
>> +#define HEVC_SHERR_NUM_LONG_TERM_PICS                                  0x00003009
>> +#define HEVC_SHERR_LT_IDX_SPS_IS_OUT_OF_RANGE                          0x0000300A
>> +#define HEVC_SHERR_DELTA_POC_MSB_CYCLE_LT                              0x0000300B
>> +#define HEVC_SHERR_NUM_REF_IDX_L0_ACTIVE_MINUS1                        0x0000300C
>> +#define HEVC_SHERR_NUM_REF_IDX_L1_ACTIVE_MINUS1                        0x0000300D
>> +#define HEVC_SHERR_COLLOCATED_REF_IDX                                  0x0000300E
>> +#define HEVC_SHERR_PRED_WEIGHT_TABLE                                   0x0000300F
>> +#define HEVC_SHERR_FIVE_MINUS_MAX_NUM_MERGE_CAND                       0x00003010
>> +#define HEVC_SHERR_SLICE_QP_DELTA                                      0x00003011
>> +#define HEVC_SHERR_SLICE_QP_DELTA_IS_OUT_OF_RANGE                      0x00003012
>> +#define HEVC_SHERR_SLICE_CB_QP_OFFSET                                  0x00003013
>> +#define HEVC_SHERR_SLICE_CR_QP_OFFSET                                  0x00003014
>> +#define HEVC_SHERR_SLICE_BETA_OFFSET_DIV2                              0x00003015
>> +#define HEVC_SHERR_SLICE_TC_OFFSET_DIV2                                0x00003016
>> +#define HEVC_SHERR_NUM_ENTRY_POINT_OFFSETS                             0x00003017
>> +#define HEVC_SHERR_OFFSET_LEN_MINUS1                                   0x00003018
>> +#define HEVC_SHERR_SLICE_SEGMENT_HEADER_EXTENSION_LENGTH               0x00003019
>> +#define HEVC_SHERR_WRONG_POC_IN_STILL_PICTURE_PROFILE                  0x0000301A
>> +#define HEVC_SHERR_SLICE_TYPE_ERROR_IN_STILL_PICTURE_PROFILE           0x0000301B
>> +#define HEVC_SHERR_PPS_ID_NOT_EQUAL_PREV_VALUE                         0x0000301C
>> +#define HEVC_SPECERR_OVER_PICTURE_WIDTH_SIZE                           0x00004000
>> +#define HEVC_SPECERR_OVER_PICTURE_HEIGHT_SIZE                          0x00004001
>> +#define HEVC_SPECERR_OVER_CHROMA_FORMAT                                0x00004002
>> +#define HEVC_SPECERR_OVER_BIT_DEPTH                                    0x00004003
>> +#define HEVC_SPECERR_OVER_BUFFER_OVER_FLOW                             0x00004004
>> +#define HEVC_SPECERR_OVER_WRONG_BUFFER_ACCESS                          0x00004005
>> +#define HEVC_ETCERR_INIT_SEQ_SPS_NOT_FOUND                             0x00005000
>> +#define HEVC_ETCERR_DEC_PIC_VCL_NOT_FOUND                              0x00005001
>> +#define HEVC_ETCERR_NO_VALID_SLICE_IN_AU                               0x00005002
>> +#define HEVC_ETCERR_INPLACE_V                                          0x0000500F
>> +
>> +// AVC
>> +#define AVC_SPSERR_SEQ_PARAMETER_SET_ID                                0x00001000
>> +#define AVC_SPSERR_CHROMA_FORMAT_IDC                                   0x00001001
>> +#define AVC_SPSERR_PIC_WIDTH_IN_LUMA_SAMPLES                           0x00001002
>> +#define AVC_SPSERR_PIC_HEIGHT_IN_LUMA_SAMPLES                          0x00001003
>> +#define AVC_SPSERR_CONF_WIN_LEFT_OFFSET                                0x00001004
>> +#define AVC_SPSERR_CONF_WIN_RIGHT_OFFSET                               0x00001005
>> +#define AVC_SPSERR_CONF_WIN_TOP_OFFSET                                 0x00001006
>> +#define AVC_SPSERR_CONF_WIN_BOTTOM_OFFSET                              0x00001007
>> +#define AVC_SPSERR_BIT_DEPTH_LUMA_MINUS8                               0x00001008
>> +#define AVC_SPSERR_BIT_DEPTH_CHROMA_MINUS8                             0x00001009
>> +#define AVC_SPSERR_SPS_MAX_DEC_PIC_BUFFERING                           0x0000100B
>> +#define AVC_SPSERR_SPS_MAX_NUM_REORDER_PICS                            0x0000100C
>> +#define AVC_SPSERR_SCALING_LIST                                        0x00001014
>> +#define AVC_SPSERR_GBU_PARSING_ERROR                                   0x00001019
>> +#define AVC_SPSERR_VUI_ERROR                                           0x0000101B
>> +#define AVC_SPSERR_ACTIVATE_SPS                                        0x0000101C
>> +#define AVC_PPSERR_PPS_PIC_PARAMETER_SET_ID                            0x00002000
>> +#define AVC_PPSERR_PPS_SEQ_PARAMETER_SET_ID                            0x00002001
>> +#define AVC_PPSERR_NUM_REF_IDX_L0_DEFAULT_ACTIVE_MINUS1                0x00002002
>> +#define AVC_PPSERR_NUM_REF_IDX_L1_DEFAULT_ACTIVE_MINUS1                0x00002003
>> +#define AVC_PPSERR_INIT_QP_MINUS26                                     0x00002004
>> +#define AVC_PPSERR_PPS_CB_QP_OFFSET                                    0x00002006
>> +#define AVC_PPSERR_PPS_CR_QP_OFFSET                                    0x00002007
>> +#define AVC_PPSERR_SCALING_LIST                                        0x0000200E
>> +#define AVC_PPSERR_MORE_RBSP_DATA_ERROR                                0x00002012
>> +#define AVC_PPSERR_PPS_PIC_PARAMETER_SET_ID_RANGE_OUT                  0x00002013
>> +#define AVC_PPSERR_PPS_SEQ_PARAMETER_SET_ID_RANGE_OUT                  0x00002014
>> +#define AVC_PPSERR_NUM_REF_IDX_L0_DEFAULT_ACTIVE_MINUS1_RANGE_OUT      0x00002015
>> +#define AVC_PPSERR_NUM_REF_IDX_L1_DEFAULT_ACTIVE_MINUS1_RANGE_OUT      0x00002016
>> +#define AVC_PPSERR_PPS_CB_QP_OFFSET_RANGE_OUT                          0x00002017
>> +#define AVC_PPSERR_PPS_CR_QP_OFFSET_RANGE_OUT                          0x00002018
>> +#define AVC_SHERR_SLICE_PIC_PARAMETER_SET_ID                           0x00003000
>> +#define AVC_SHERR_ACTIVATE_PPS                                         0x00003001
>> +#define AVC_SHERR_ACTIVATE_SPS                                         0x00003002
>> +#define AVC_SHERR_SLICE_TYPE                                           0x00003003
>> +#define AVC_SHERR_FIRST_MB_IN_SLICE                                    0x00003004
>> +#define AVC_SHERR_RPLM                                                 0x00003006
>> +#define AVC_SHERR_LT_IDX_SPS_IS_OUT_OF_RANGE                           0x0000300A
>> +#define AVC_SHERR_NUM_REF_IDX_L0_ACTIVE_MINUS1                         0x0000300C
>> +#define AVC_SHERR_NUM_REF_IDX_L1_ACTIVE_MINUS1                         0x0000300D
>> +#define AVC_SHERR_PRED_WEIGHT_TABLE                                    0x0000300F
>> +#define AVC_SHERR_SLICE_QP_DELTA                                       0x00003011
>> +#define AVC_SHERR_SLICE_BETA_OFFSET_DIV2                               0x00003015
>> +#define AVC_SHERR_SLICE_TC_OFFSET_DIV2                                 0x00003016
>> +#define AVC_SHERR_DISABLE_DEBLOCK_FILTER_IDC                           0x00003017
>> +#define AVC_SPECERR_OVER_PICTURE_WIDTH_SIZE                            0x00004000
>> +#define AVC_SPECERR_OVER_PICTURE_HEIGHT_SIZE                           0x00004001
>> +#define AVC_SPECERR_OVER_CHROMA_FORMAT                                 0x00004002
>> +#define AVC_SPECERR_OVER_BIT_DEPTH                                     0x00004003
>> +#define AVC_SPECERR_OVER_BUFFER_OVER_FLOW                              0x00004004
>> +#define AVC_SPECERR_OVER_WRONG_BUFFER_ACCESS                           0x00004005
>> +#define AVC_ETCERR_INIT_SEQ_SPS_NOT_FOUND                              0x00005000
>> +#define AVC_ETCERR_DEC_PIC_VCL_NOT_FOUND                               0x00005001
>> +#define AVC_ETCERR_NO_VALID_SLICE_IN_AU                                0x00005002
>> +#define AVC_ETCERR_ASO                                                 0x00005004
>> +#define AVC_ETCERR_FMO                                                 0x00005005
>> +#define AVC_ETCERR_INPLACE_V                                           0x0000500F
>> +
>> +// AV1
>> +#define AV1_SPSERR_MAX_FRAME_WIDTH                                     0x00001001
>> +#define AV1_SPSERR_MAX_FRAME_HEIGHT                                    0x00001002
>> +#define AV1_SPSERR_ID_LEN_EXCEED_16                                    0x00001004
>> +#define AV1_SPSERR_NOT_FOUND_FIRST_SPS                                 0x0000100A
>> +#define AV1_SPSERR_SEQ_PROFILE                                         0x0000100B
>> +#define AV1_SPSERR_STILL_PICTURE                                       0x0000100C
>> +#define AV1_PPSERR_FRAME_SIZE_WIDTH                                    0x00002001
>> +#define AV1_PPSERR_FRAME_SIZE_HEIGHT                                   0x00002002
>> +#define AV1_PPSERR_SEEN_FRAME_HEADER                                   0x00002003
>> +#define AV1_PPSERR_REF_VALID                                           0x00002007
>> +#define AV1_PPSERR_LAST_ORDER_HINT                                     0x0000200B
>> +#define AV1_PPSERR_GOLD_ORDER_HINT                                     0x0000200C
>> +#define AV1_PPSERR_CODED_LOSSLESS_DELTA_Q                              0x0000200E
>> +#define AV1_PPSERR_FILM_GRAIN_PARAM_REF_IDX                            0x0000200F
>> +#define AV1_PPSERR_SEQ_CHANGE_BIT_DEPTH                                0x00002010
>> +#define AV1_PPSERR_SEQ_CHANGE_PROFILE                                  0x00002012
>> +#define AV1_PPSERR_SEQ_CHANGE_DETECTED_INTER                           0x00002013
>> +#define AV1_PPSERR_NUM_Y_POINTS                                        0x00002014
>> +#define AV1_PPSERR_POINT_Y_VALUE                                       0x00002015
>> +#define AV1_PPSERR_NUM_CB_POINTS                                       0x00002016
>> +#define AV1_PPSERR_POINT_CB_VALUE                                      0x00002017
>> +#define AV1_PPSERR_NUM_CR_POINTS                                       0x00002018
>> +#define AV1_PPSERR_POINT_CR_VALUE                                      0x00002019
>> +#define AV1_PPSERR_SUBSAMPLING_FORMAT                                  0x0000201A
>> +#define AV1_FRAMEERR_TILE_START_END_PRESENT                            0x00003001
>> +#define AV1_FRAMEERR_SHOW_EXISING_FRAME                                0x00003002
>> +#define AV1_TGERR_NUM_TILES_ZERO                                       0x00004001
>> +#define AV1_TGERR_START_NOT_TILE_NUM                                   0x00004002
>> +#define AV1_TGERR_END_LESS_THAN_TG_START                               0x00004003
>> +#define AV1_TGERR_TILE_SIZE_GREATER_THAN_32M                           0x00004004
>> +#define AV1_SPECERR_OVER_MAX_H_SIZE                                    0x00005001
>> +#define AV1_SPECERR_OVER_MAX_V_SIZE                                    0x00005002
>> +#define AV1_SPECERR_OVER_MAX_TILE_COLS                                 0x00005004
>> +#define AV1_SPECERR_OVER_MAX_TILE_ROWS                                 0x00005005
>> +#define AV1_SPECERR_OVER_TILE_SIZE                                     0x00005006
>> +#define AV1_SPECERR_OVER_NUMTILES_GT_MAX_TILES                         0x00005007
>> +#define AV1_ETCERR_OBU_HEADER                                          0x00006001
>> +#define AV1_ETCERR_OBU_SIZE                                            0x00006003
>> +#define AV1_ETCERR_OVERCONSUME                                         0x00006004
>> +#define AV1_ETCERR_NOT_SUPPORTED_FEATURE                               0x00006005
>> +#define AV1_ETCERR_RESILIENCE_FAIL                                     0x00006006
>> +
>> +// VP9
>> +#define VP9_PICERR_FRAME_MARKER                                        0x00001000
>> +#define VP9_PICERR_PROFILE                                             0x00001001
>> +#define VP9_PICERR_SYNC_CODE                                           0x00001002
>> +#define VP9_PICERR_PROFILE_COLOR_SAMPLE                                0x00001003
>> +#define VP9_PICERR_FRAME_SIZE                                          0x00001004
>> +#define VP9_PICERR_SEGMENT                                             0x00001005
>> +#define VP9_PICERR_TILE                                                0x00001006
>> +#define VP9_PICERR_PROFILE_COMP_MISMATCH_WITH_REF                      0x00001007
>> +#define VP9_PICERR_COMP_DAT_OVER_CS                                    0x00001008
>> +#define VP9_PICERR_COMP_TRAILING_BIT_ERR                               0x00001009
>> +#define VP9_PICERR_MARKER                                              0x0000100A
>> +#define VP9_PICERR_NOT_EXIST_REF_FRAME                                 0x0000100B
>> +#define VP9_PICERR_UNINIT_CTX                                          0x0000100C
>> +#define VP9_PICERR_FRAME_SIZE_LIMIT_BY_REF                             0x0000100D
>> +#define VP9_SPECERR_OVER_PICTURE_WIDTH_SIZE                            0x00004000
>> +#define VP9_SPECERR_OVER_PICTURE_HEIGHT_SIZE                           0x00004001
>> +#define VP9_SPECERR_OVER_CHROMA_FORMAT                                 0x00004002
>> +#define VP9_SPECERR_OVER_BIT_DEPTH                                     0x00004003
>> +#define VP9_ETCERR_INIT_KEY_FRAME_NOT_FOUND                            0x00005000
>> +#define VP9_ETCERR_FORBIDDEN_BS_MODE                                   0x00005004
>> +#define VP9_ETCERR_SPP_OVER_CS_AU                                      0x00005005
>> +
>> +// AVS2
>> +#define AVS2_SPSERR_PROFILE_ID                                         0x00001000
>> +#define AVS2_SPSERR_LEVEL_ID                                           0x00001001
>> +#define AVS2_SPSERR_HORIZONTAL_SIZE                                    0x00001002
>> +#define AVS2_SPSERR_VERTICAL_SIZE                                      0x00001003
>> +#define AVS2_SPSERR_CHROMA_FORMAT                                      0x00001004
>> +#define AVS2_SPSERR_SAMPLE_PRECISION                                   0x00001005
>> +#define AVS2_SPSERR_ENCODING_PRECISION                                 0x00001006
>> +#define AVS2_SPSERR_LCU_SIZE                                           0x00001007
>> +#define AVS2_SPSERR_WEIGHT_QUANT_MATRIX                                0x00001008
>> +#define AVS2_SPSERR_NUM_OF_RCS                                         0x00001009
>> +#define AVS2_SPSERR_REFERENCE_CONFIGURATION_SET                        0x0000100A
>> +#define AVS2_SPSERR_OUTPUT_REORDER_DELAY                               0x0000100B
>> +#define AVS2_PPSERR_BBV_DELAY                                          0x00002000
>> +#define AVS2_PPSERR_TIME_CODE                                          0x00002001
>> +#define AVS2_PPSERR_DECODE_ORDER_INDEX                                 0x00002002
>> +#define AVS2_PPSERR_TEMPORAL_ID                                        0x00002003
>> +#define AVS2_PPSERR_PICTURE_OUTPUT_DELAY                               0x00002004
>> +#define AVS2_PPSERR_RCS_INDEX                                          0x00002005
>> +#define AVS2_PPSERR_REFERENCE_CONFIGURATION_SET                        0x00002006
>> +#define AVS2_PPSERR_BBV_CHECK_TIMES                                    0x00002007
>> +#define AVS2_PPSERR_PICTURE_QP                                         0x00002008
>> +#define AVS2_PPSERR_ALPHA_C_OFFSET                                     0x00002009
>> +#define AVS2_PPSERR_BETA_OFFSET                                        0x0000200A
>> +#define AVS2_PPSERR_CHROMA_QUANT_PARAM_DELTA_CB                        0x0000200B
>> +#define AVS2_PPSERR_CHROMA_QUANT_PARAM_DELTA_CR                        0x0000200C
>> +#define AVS2_PPSERR_WEIGHT_QUANT_PARAM_DELTA1                          0x0000200D
>> +#define AVS2_PPSERR_WEIGHT_QUANT_PARAM_DELTA2                          0x0000200E
>> +#define AVS2_PPSERR_PICTURE_CODING_TYPE                                0x0000200F
>> +#define AVS2_PPSERR_ALF_FILTER_NUM_MINUS1                              0x00002010
>> +#define AVS2_PPSERR_ALF_REGION_DISTANCE                                0x00002011
>> +#define AVS2_PPSERR_ALF_COEFF_LUMA                                     0x00002012
>> +#define AVS2_PPSERR_ALF_COEFF_CHROMA_CB                                0x00002013
>> +#define AVS2_PPSERR_ALF_COEFF_CHROMA_CR                                0x00002014
>> +#define AVS2_SHERR_SLICE_VERTICAL_POSITION                             0x00003000
>> +#define AVS2_SHERR_SLICE_VERTICAL_POSITION_EXTENSION                   0x00003001
>> +#define AVS2_SHERR_SLICE_HORIZONTAL_POSITION                           0x00003002
>> +#define AVS2_SHERR_SLICE_HORIZONTAL_POSITION_EXTENSION                 0x00003003
>> +#define AVS2_SHERR_FIXED_SLICE_QP                                      0x00003004
>> +#define AVS2_SHERR_SLICE_QP                                            0x00003005
>> +#define AVS2_SHERR_SLICE_SAO_ENABLE_FLAG                               0x00003006
>> +#define AVS2_SHERR_AEC_BYTE_ALIGNMENT_BIT                              0x00003007
>> +#define AVS2_SHERR_STREAM_END                                          0x00003008
>> +#define AVS2_SPECERR_OVER_PICTURE_WIDTH_SIZE                           0x00004000
>> +#define AVS2_SPECERR_OVER_PICTURE_HEIGHT_SIZE                          0x00004001
>> +#define AVS2_SPECERR_OVER_CHROMA_FORMAT                                0x00004002
>> +#define AVS2_SPECERR_OVER_BIT_DEPTH                                    0x00004003
>> +#define AVS2_SPECERR_OVER_REF_TEMPORAL_ID                              0x00004004
>> +#define AVS2_ETCERR_SPS_NOT_FOUND                                      0x00005000
>> +#define AVS2_ETCERR_DEC_PIC_VCL_NOT_FOUND                              0x00005001
>> +#define AVS2_ETCERR_NO_VALID_SLICE_IN_AU                               0x00005002
>> +#define AVS2_ETCERR_PPS_ERROR                                          0x00005003
>> +#define AVS2_ETCERR_SLICE_NUM_OVERFLOW                                 0x00005004
>> +
>> +/************************************************************************/
>> +/* WAVE5 WARNING ON DECODER (WARN_INFO)                                 */
>> +/************************************************************************/
>> +// HEVC
>> +#define HEVC_SPSWARN_MAX_SUB_LAYERS_MINUS1                             0x00000001
>> +#define HEVC_SPSWARN_GENERAL_RESERVED_ZERO_44BITS                      0x00000002
>> +#define HEVC_SPSWARN_RESERVED_ZERO_2BITS                               0x00000004
>> +#define HEVC_SPSWARN_SUB_LAYER_RESERVED_ZERO_44BITS                    0x00000008
>> +#define HEVC_SPSWARN_GENERAL_LEVEL_IDC                                 0x00000010
>> +#define HEVC_SPSWARN_SPS_MAX_DEC_PIC_BUFFERING_VALUE_OVER              0x00000020
>> +#define HEVC_SPSWARN_RBSP_TRAILING_BITS                                0x00000040
>> +#define HEVC_SPSWARN_ST_RPS_UE_ERROR                                   0x00000080
>> +#define HEVC_SPSWARN_EXTENSION_FLAG                                    0x01000000
>> +#define HEVC_SPSWARN_REPLACED_WITH_PREV_SPS                            0x02000000
>> +#define HEVC_PPSWARN_RBSP_TRAILING_BITS                                0x00000100
>> +#define HEVC_PPSWARN_REPLACED_WITH_PREV_PPS                            0x00000200
>> +#define HEVC_SHWARN_FIRST_SLICE_SEGMENT_IN_PIC_FLAG                    0x00001000
>> +#define HEVC_SHWARN_NO_OUTPUT_OF_PRIOR_PICS_FLAG                       0x00002000
>> +#define HEVC_SHWARN_PIC_OUTPUT_FLAG                                    0x00004000
>> +#define HEVC_SHWARN_DUPLICATED_SLICE_SEGMENT                           0x00008000
>> +#define HEVC_ETCWARN_INIT_SEQ_VCL_NOT_FOUND                            0x00010000
>> +#define HEVC_ETCWARN_MISSING_REFERENCE_PICTURE                         0x00020000
>> +#define HEVC_ETCWARN_WRONG_TEMPORAL_ID                                 0x00040000
>> +#define HEVC_ETCWARN_ERROR_PICTURE_IS_REFERENCED                       0x00080000
>> +#define HEVC_SPECWARN_OVER_PROFILE                                     0x00100000
>> +#define HEVC_SPECWARN_OVER_LEVEL                                       0x00200000
>> +#define HEVC_PRESWARN_PARSING_ERR                                      0x04000000
>> +#define HEVC_PRESWARN_MVD_OUT_OF_RANGE                                 0x08000000
>> +#define HEVC_PRESWARN_CU_QP_DELTA_VAL_OUT_OF_RANGE                     0x09000000
>> +#define HEVC_PRESWARN_COEFF_LEVEL_REMAINING_OUT_OF_RANGE               0x0A000000
>> +#define HEVC_PRESWARN_PCM_ERR                                          0x0B000000
>> +#define HEVC_PRESWARN_OVERCONSUME                                      0x0C000000
>> +#define HEVC_PRESWARN_END_OF_SUBSET_ONE_BIT_ERR                        0x10000000
>> +#define HEVC_PRESWARN_END_OF_SLICE_SEGMENT_FLAG                        0x20000000
>> +
>> +// AVC
>> +#define AVC_SPSWARN_RESERVED_ZERO_2BITS                                0x00000004
>> +#define AVC_SPSWARN_GENERAL_LEVEL_IDC                                  0x00000010
>> +#define AVC_SPSWARN_RBSP_TRAILING_BITS                                 0x00000040
>> +#define AVC_PPSWARN_RBSP_TRAILING_BITS                                 0x00000100
>> +#define AVC_SHWARN_NO_OUTPUT_OF_PRIOR_PICS_FLAG                        0x00002000
>> +#define AVC_ETCWARN_INIT_SEQ_VCL_NOT_FOUND                             0x00010000
>> +#define AVC_ETCWARN_MISSING_REFERENCE_PICTURE                          0x00020000
>> +#define AVC_ETCWARN_ERROR_PICTURE_IS_REFERENCED                        0x00080000
>> +#define AVC_SPECWARN_OVER_PROFILE                                      0x00100000
>> +#define AVC_SPECWARN_OVER_LEVEL                                        0x00200000
>> +#define AVC_PRESWARN_MVD_RANGE_OUT                                     0x00400000
>> +#define AVC_PRESWARN_MB_QPD_RANGE_OUT                                  0x00500000
>> +#define AVC_PRESWARN_COEFF_RANGE_OUT                                   0x00600000
>> +#define AVC_PRESWARN_MV_RANGE_OUT                                      0x00700000
>> +#define AVC_PRESWARN_MB_SKIP_RUN_RANGE_OUT                             0x00800000
>> +#define AVC_PRESWARN_MB_TYPE_RANGE_OUT                                 0x00900000
>> +#define AVC_PRESWARN_SUB_MB_TYPE_RANGE_OUT                             0x00A00000
>> +#define AVC_PRESWARN_CBP_RANGE_OUT                                     0x00B00000
>> +#define AVC_PRESWARN_INTRA_CHROMA_PRED_MODE_RANGE_OUT                  0x00C00000
>> +#define AVC_PRESWARN_REF_IDX_RANGE_OUT                                 0x00D00000
>> +#define AVC_PRESWARN_COEFF_TOKEN_RANGE_OUT                             0x00E00000
>> +#define AVC_PRESWARN_TOTAL_ZERO_RANGE_OUT                              0x00F00000
>> +#define AVC_PRESWARN_RUN_BEFORE_RANGE_OUT                              0x01000000
>> +#define AVC_PRESWARN_OVERCONSUME                                       0x01100000
>> +#define AVC_PRESWARN_MISSING_SLICE                                     0x01200000
>> +
>> +// AV1
>> +#define AV1_SPSWARN_OBU_EXTENTION_FLAG_ZERO                            0x00001000
>> +#define AV1_SPSWARN_DUPLICATE_OPERATING_POINT_IDX                      0x00001001
>> +#define AV1_SPSWARN_MC_IDENTIY_SUBSAMPLING_X                           0x00001002
>> +#define AV1_PPSWARN_MC_IDENTIY_SUBSAMPLING_Y                           0x00001003
>> +#define AV1_SPSWARN_NUM_UNITS_IN_DISPLAY_TICK                          0x00001004
>> +#define AV1_SPSWARN_TIME_SCALE_ZERO                                    0x00001005
>> +#define AV1_SPSWARN_NUM_TICKS_PER_PICTURE                              0x00001006
>> +#define AV1_PPSWARN_TILE_WIDTH                                         0x00002001
>> +#define AV1_PPSWARN_TILE_HEIGHT                                        0x00002002
>> +#define AV1_PPSWARN_SHOW_EXISTING_KEY_FRAME_OUTPUT                     0x00002004
>> +#define AV1_PPSWARN_DIFF_FRAME_ID                                      0x00002008
>> +#define AV1_PPSWARN_CURRENT_FRAME_ID                                   0x00002010
>> +#define AV1_PPSWARN_REFRESH_FRAME_FLAGS                                0x00002020
>> +#define AV1_PPSWARN_DISPLAY_ID                                         0x00002040
>> +#define AV1_PPSWARN_PREV_FRAME_SHOWABLE_FLAG_ZERO                      0x00002080
>> +#define AV1_PPSWARN_EXPECTED_FRAME_ID                                  0x00002100
>> +#define AV1_SPECWARN_OVER_MAX_TILE_AREA_SB                             0x00005000
>> +#define AV1_SPECWARN_OVER_MAX_PIC_SIZE                                 0x00005001
>> +#define AV1_ETCWARN_OBU_EXTENTION_FLAG                                 0x00006000
>> +#define AV1_TGWARN_TRAIL_BIT_POS                                       0x00400000
>> +#define AV1_TGWARN_TRAIL_PAD_BIT                                       0x00800000
>> +#define AV1_TGWARN_SYM_MAX_OVER                                        0x01000000
>> +#define AV1_TGWARN_EXP_GOLB_OVER                                       0x02000000
>> +#define AV1_TGWARN_MV_NOT_VAILD                                        0x04000000
>> +
>> +// VP9
>> +#define VP9_PICWARN_COLOR_SPACE_MISMATCH_WITH_REF                      0x00001000
>> +#define VP9_PRESWARN_OVERCONSUME                                       0x00400000
>> +#define VP9_PRESWARN_TRAILING_BITS                                     0x00800000
>> +#define VP9_PRESWARN_MARKER                                            0x01000000
>> +#define VP9_PRESWARN_MV_RANGE_OVER                                     0x02000000
>> +#define VP9_PRESWARN_MISIZE_SEG_LVL_ACTIVE                             0x04000000
>> +
>> +// AVS2
>> +#define AVS2_ETCWARN_INIT_SEQ_VCL_NOT_FOUND                            0x00010000
>> +#define AVS2_ETCWARN_MISSING_REFERENCE_PICTURE                         0x00020000
>> +#define AVS2_ETCWARN_WRONG_TEMPORAL_ID                                 0x00040000
>> +#define AVS2_ETCWARN_ERROR_PICTURE_IS_REFERENCED                       0x00080000
>> +#define AVS2_ETCWARN_REF_WRONG_TEMPORAL_ID                             0x00080001
>> +#define AVS2_ETCWARN_SPS_ERROR                                         0x00080002
>> +
>> +/************************************************************************/
>> +/* WAVE5 ERROR ON ENCODER (ERR_INFO)                                    */
>> +/************************************************************************/
>> +
>> +/************************************************************************/
>> +/* WAVE5 WARNING ON ENCODER (WARN_INFO)                                 */
>> +/************************************************************************/
>> +#define WAVE5_ETCWARN_FORCED_SPLIT_BY_CU8X8                            0x000000001
>> +
>> +/************************************************************************/
>> +/* WAVE5 debug info (PRI_REASON)                                        */
>> +/************************************************************************/
>> +#define WAVE5_DEC_VCORE_VCE_HANGUP                                     0x0001
>> +#define WAVE5_DEC_VCORE_UNDETECTED_SYNTAX_ERR                          0x0002
>> +#define WAVE5_DEC_VCORE_MIB_BUSY                                       0x0003
>> +#define WAVE5_DEC_VCORE_VLC_BUSY                                       0x0004
>> +
>> +#endif /* ERROR_CODE_H_INCLUDED */
>> +
>> diff --git a/drivers/staging/media/wave5/wave5-hw.c b/drivers/staging/media/wave5/wave5-hw.c
>> new file mode 100644
>> index 000000000000..5eb549037675
>> --- /dev/null
>> +++ b/drivers/staging/media/wave5/wave5-hw.c
>> @@ -0,0 +1,3513 @@
>> +// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
>> +/*
>> + * Wave5 series multi-standard codec IP - wave5 backend logic
>> + *
>> + * Copyright (C) 2021 CHIPS&MEDIA INC
>> + */
>> +
>> +#include <linux/iopoll.h>
>> +#include "vpu.h"
>> +#include "wave5.h"
>> +#include "wave5_regdefine.h"
>> +
>> +#define FIO_TIMEOUT 10000000
>> +#define FIO_CTRL_READY		BIT(31)
>> +#define FIO_CTRL_WRITE		BIT(16)
>> +static void wave5_print_reg_err(struct vpu_device *vpu_dev, u32 reg_fail_reason)
>> +{
>> +	char *caller = __builtin_return_address(0);
>> +	struct device *dev = vpu_dev->dev;
>> +	u32 reg_val;
>> +
>> +	switch (reg_fail_reason) {
>> +	case WAVE5_SYSERR_QUEUEING_FAIL:
>> +		reg_val = vpu_read_reg(vpu_dev, W5_RET_QUEUE_FAIL_REASON);
>> +		dev_dbg(dev, "%s: queueing failure 0x%x\n", caller, reg_val);
>> +		break;
>> +	case WAVE5_SYSERR_RESULT_NOT_READY:
>> +		dev_err(dev, "%s: result not ready 0x%x\n", caller, reg_fail_reason);
>> +		break;
>> +	case WAVE5_SYSERR_ACCESS_VIOLATION_HW:
>> +		dev_err(dev, "%s: access violation 0x%x\n", caller, reg_fail_reason);
>> +		break;
>> +	case WAVE5_SYSERR_WATCHDOG_TIMEOUT:
>> +		dev_err(dev, "%s: watchdog timeout 0x%x\n", caller, reg_fail_reason);
>> +		break;
>> +	case WAVE5_SYSERR_BUS_ERROR:
>> +		dev_err(dev, "%s: bus error 0x%x\n", caller, reg_fail_reason);
>> +		break;
>> +	case WAVE5_SYSERR_DOUBLE_FAULT:
>> +		dev_err(dev, "%s: double fault 0x%x\n", caller, reg_fail_reason);
>> +		break;
>> +	case WAVE5_SYSERR_VPU_STILL_RUNNING:
>> +		dev_err(dev, "%s: still running 0x%x\n", caller, reg_fail_reason);
>> +		break;
>> +	case WAVE5_SYSERR_VLC_BUF_FULL:
>> +		dev_err(dev, "%s: vlc buf full 0x%x\n", caller, reg_fail_reason);
>> +		break;
>> +	default:
>> +		dev_err(dev, "%s: failure: 0x%x\n", caller, reg_fail_reason);
>> +		break;
>> +	}
>> +}
>> +
>> +static unsigned int wave5_read_register(struct vpu_device *vpu_dev, unsigned int addr)
>> +{
>> +	u32 ctrl;
>> +	int ret;
>> +
>> +	ctrl = addr & 0xffff;
>> +	wave5_vdi_write_register(vpu_dev, W5_VPU_FIO_CTRL_ADDR, ctrl);
>> +	ret = read_poll_timeout(wave5_vdi_read_register, ctrl, ctrl & FIO_CTRL_READY,
>> +				0, FIO_TIMEOUT, false, vpu_dev, W5_VPU_FIO_CTRL_ADDR);
>> +	if (ret)
>> +		return 0xffffffff;
>> +	return wave5_vdi_read_register(vpu_dev, W5_VPU_FIO_DATA);
>> +}
>> +
>> +static void wave5_write_register(struct vpu_device *vpu_dev, unsigned int addr, unsigned int data)
>> +{
>> +	unsigned int ctrl;
>> +
>> +	wave5_vdi_write_register(vpu_dev, W5_VPU_FIO_DATA, data);
>> +	ctrl = FIO_CTRL_WRITE | (addr & 0xffff);
>> +	wave5_vdi_write_register(vpu_dev, W5_VPU_FIO_CTRL_ADDR, ctrl);
>> +	read_poll_timeout(wave5_vdi_read_register, ctrl, ctrl & FIO_CTRL_READY,
>> +			  0, FIO_TIMEOUT, false, vpu_dev, W5_VPU_FIO_CTRL_ADDR);
>> +}
>> +
>> +static int wave5_wait_bus_busy(struct vpu_device *vpu_dev, int timeout, unsigned int addr)
>> +{
>> +	u32 gdi_status_check_value = 0x3f;
>> +	u32 data;
>> +
>> +	if (vpu_dev->product_code == WAVE521C_CODE ||
>> +	    vpu_dev->product_code == WAVE521_CODE ||
>> +	 vpu_dev->product_code == WAVE521E1_CODE)
>> +		gdi_status_check_value = 0x00ff1f3f;
>> +
>> +	return read_poll_timeout(wave5_vdi_read_register, data, data == gdi_status_check_value,
>> +				 0, timeout * 1000, false, vpu_dev, addr);
>> +}
>> +
>> +static int wave5_wait_vpu_busy(struct vpu_device *vpu_dev, int timeout, unsigned int addr)
>> +{
>> +	u32 data;
>> +
>> +	return read_poll_timeout(wave5_vdi_read_register, data, data == 0,
>> +				 0, timeout * 1000, false, vpu_dev, addr);
>> +}
>> +
>> +static int wave5_wait_vcpu_bus_busy(struct vpu_device *vpu_dev, int timeout, unsigned int addr)
>> +{
>> +	u32 data;
>> +
>> +	return read_poll_timeout(wave5_read_register, data, data == 0,
>> +				 0, timeout * 1000, false, vpu_dev, addr);
>> +}
>> +
>> +bool wave5_vpu_is_init(struct vpu_device *vpu_dev)
>> +{
>> +	return vpu_read_reg(vpu_dev, W5_VCPU_CUR_PC) != 0;
>> +}
>> +
>> +static struct vpu_buf *get_sram_memory(struct vpu_device *vpu_dev)
>> +{
>> +	u32 sram_size = 0;
>> +	u32 val = vpu_read_reg(vpu_dev, W5_PRODUCT_NUMBER);
>> +
>> +	if (vpu_dev->sram_buf.size)
>> +		return &vpu_dev->sram_buf;
>> +
>> +	switch (val) {
>> +	case WAVE511_CODE:
>> +		/* 10bit profile : 8_kx8_k -> 129024, 4_kx2_k -> 64512
>> +		 */
> 
> Move the close */ to the previous line:
> 
> 		/* 10bit profile : 8_kx8_k -> 129024, 4_kx2_k -> 64512 */
> 
>> +		sram_size = 0x1F800;
>> +		break;
>> +	case WAVE517_CODE:
>> +		/* 10bit profile : 8_kx8_k -> 272384, 4_kx2_k -> 104448
>> +		 */
> 
> Same everywhere.
> 
>> +		sram_size = 0x42800;
>> +		break;
>> +	case WAVE537_CODE:
>> +		/* 10bit profile : 8_kx8_k -> 272384, 4_kx2_k -> 104448
>> +		 */
>> +		sram_size = 0x42800;
>> +		break;
>> +	case WAVE521_CODE:
>> +		/* 10bit profile : 8_kx8_k -> 126976, 4_kx2_k -> 63488
>> +		 */
>> +		sram_size = 0x1F000;
>> +		break;
>> +	case WAVE521E1_CODE:
>> +		/* 10bit profile : 8_kx8_k -> 126976, 4_kx2_k -> 63488
>> +		 */
>> +		sram_size = 0x1F000;
>> +		break;
>> +	case WAVE521C_CODE:
>> +		/* 10bit profile : 8_kx8_k -> 129024, 4_kx2_k -> 64512
>> +		 * NOTE: decoder > encoder
>> +		 */
>> +		sram_size = 0x1F800;
>> +		break;
>> +	case WAVE521C_DUAL_CODE:
>> +		/* 10bit profile : 8_kx8_k -> 129024, 4_kx2_k -> 64512
>> +		 * NOTE: decoder > encoder
>> +		 */
>> +		sram_size = 0x1F800;
>> +		break;
>> +	default:
>> +		dev_err(vpu_dev->dev, "invalid check product_code(%x)\n", val);
>> +		break;
>> +	}
>> +
>> +	// if we can know the sram address directly in vdi layer, we use it first for sdram address
>> +	vpu_dev->sram_buf.daddr = 0;
>> +	vpu_dev->sram_buf.size = sram_size;
>> +	vpu_dev->sram_buf.vaddr = NULL;
>> +
>> +	return &vpu_dev->sram_buf;
>> +}
>> +
>> +int32_t wave_vpu_get_product_id(struct vpu_device *vpu_dev)
>> +{
>> +	u32 product_id = PRODUCT_ID_NONE;
>> +	u32 val;
>> +
>> +	val = vpu_read_reg(vpu_dev, W5_PRODUCT_NUMBER);
>> +
>> +	switch (val) {
>> +	case WAVE521_CODE:
>> +		product_id = PRODUCT_ID_521; break;
>> +	case WAVE521C_CODE:
>> +		product_id = PRODUCT_ID_521; break;
>> +	case WAVE511_CODE:
>> +		product_id = PRODUCT_ID_511; break;
>> +	case WAVE521C_DUAL_CODE:
>> +		product_id = PRODUCT_ID_521; break;
>> +	case WAVE517_CODE:
>> +		product_id = PRODUCT_ID_517; break;
>> +	case WAVE537_CODE:
>> +		product_id = PRODUCT_ID_517; break;
>> +	case WAVE521E1_CODE:
>> +		product_id = PRODUCT_ID_521; break;
>> +	default:
>> +		dev_err(vpu_dev->dev, "check product_id(%x)\n", val);
>> +		break;
>> +	}
>> +	return product_id;
>> +}
>> +
>> +void wave5_bit_issue_command(struct vpu_instance *vpu_inst, uint32_t cmd)
>> +{
>> +	u32 instance_index = 0;
>> +	u32 codec_mode = 0;
> 
> Delete unused initializers.
> 
>> +
>> +	instance_index = vpu_inst->id;
>> +	codec_mode = vpu_inst->std;
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_INSTANCE_INFO, (codec_mode << 16) |
>> +			(instance_index & 0xffff));
>> +	vpu_write_reg(vpu_inst->dev, W5_VPU_BUSY_STATUS, 1);
>> +	vpu_write_reg(vpu_inst->dev, W5_COMMAND, cmd);
>> +
>> +	dev_dbg(vpu_inst->dev->dev, "cmd=0x%x\n", cmd);
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_VPU_HOST_INT_REQ, 1);
>> +}
>> +
>> +static int wave5_send_query(struct vpu_instance *vpu_inst, enum QUERY_OPT query_opt)
>> +{
>> +	int ret;
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_QUERY_OPTION, query_opt);
>> +	vpu_write_reg(vpu_inst->dev, W5_VPU_BUSY_STATUS, 1);
>> +	wave5_bit_issue_command(vpu_inst, W5_QUERY);
>> +
>> +	ret = wave5_wait_vpu_busy(vpu_inst->dev, VPU_BUSY_CHECK_TIMEOUT, W5_VPU_BUSY_STATUS);
>> +	if (ret) {
>> +		dev_warn(vpu_inst->dev->dev, "query timed out. opt=0x%x\n", query_opt);
>> +		return ret;
>> +	}
>> +
>> +	if (!vpu_read_reg(vpu_inst->dev, W5_RET_SUCCESS))
>> +		return -EIO;
>> +
>> +	return 0;
>> +}
>> +
>> +int setup_wave5_properties(struct device *dev)
>> +{
>> +	struct vpu_device *vpu_dev = (struct vpu_device *)dev_get_drvdata(dev);
> 
> Delete cast.
> 
>> +	struct vpu_attr *p_attr = &vpu_dev->attr;
>> +	u32 reg_val;
>> +	u8 *str;
>> +	int ret;
>> +	u32 hw_config_def0, hw_config_def1, hw_config_feature, hw_config_rev;
>> +
>> +	vpu_write_reg(vpu_dev, W5_QUERY_OPTION, GET_VPU_INFO);
>> +	vpu_write_reg(vpu_dev, W5_VPU_BUSY_STATUS, 1);
>> +	vpu_write_reg(vpu_dev, W5_COMMAND, W5_QUERY);
>> +	vpu_write_reg(vpu_dev, W5_VPU_HOST_INT_REQ, 1);
>> +	ret = wave5_wait_vpu_busy(vpu_dev, VPU_BUSY_CHECK_TIMEOUT, W5_VPU_BUSY_STATUS);
>> +	if (ret)
>> +		return ret;
>> +
>> +	if (!vpu_read_reg(vpu_dev, W5_RET_SUCCESS))
>> +		return -EIO;
>> +
>> +	reg_val = vpu_read_reg(vpu_dev, W5_RET_PRODUCT_NAME);
>> +	str = (uint8_t *)&reg_val;
>> +	p_attr->product_name[0] = str[3];
>> +	p_attr->product_name[1] = str[2];
>> +	p_attr->product_name[2] = str[1];
>> +	p_attr->product_name[3] = str[0];
>> +	p_attr->product_name[4] = 0;
>> +
>> +	p_attr->product_id = wave_vpu_get_product_id(vpu_dev);
>> +	p_attr->product_version = vpu_read_reg(vpu_dev, W5_RET_PRODUCT_VERSION);
>> +	p_attr->fw_version = vpu_read_reg(vpu_dev, W5_RET_FW_VERSION);
>> +	p_attr->customer_id = vpu_read_reg(vpu_dev, W5_RET_CUSTOMER_ID);
>> +	hw_config_def0 = vpu_read_reg(vpu_dev, W5_RET_STD_DEF0);
>> +	hw_config_def1 = vpu_read_reg(vpu_dev, W5_RET_STD_DEF1);
>> +	hw_config_feature = vpu_read_reg(vpu_dev, W5_RET_CONF_FEATURE);
>> +	hw_config_rev = vpu_read_reg(vpu_dev, W5_RET_CONF_REVISION);
>> +
>> +	p_attr->support_hevc10bit_enc = (hw_config_feature >> 3) & 1;
>> +	if (hw_config_rev > 167455) //20190321
>> +		p_attr->support_avc10bit_enc = (hw_config_feature >> 11) & 1;
>> +	else
>> +		p_attr->support_avc10bit_enc = p_attr->support_hevc10bit_enc;
>> +
>> +	p_attr->support_decoders = 0;
>> +	p_attr->support_encoders = 0;
>> +	if (p_attr->product_id == PRODUCT_ID_521) {
>> +		p_attr->support_decoders = (((hw_config_def1 >> 3) & 0x01) << STD_AVC);
> 
> The "p_attr->support_decoders = 0;" assignment means we can do |= here
> and it aligns better.
> 
>> +		p_attr->support_decoders |= (((hw_config_def1 >> 2) & 0x01) << STD_HEVC);
>> +		p_attr->support_encoders = (((hw_config_def1 >> 1) & 0x01) << STD_AVC);
>> +		p_attr->support_encoders |= (((hw_config_def1 >> 0) & 0x01) << STD_HEVC);
>> +		p_attr->support_dual_core = ((hw_config_def1 >> 26) & 0x01);
>> +		if (p_attr->support_dual_core || hw_config_rev < 206116) {
>> +			p_attr->support_decoders = (1 << STD_AVC);
> 
> It's hard for me to tell if this is intentional or not.  We just
> assigned "p_attr->support_decoders =" earlier and now we're doing a new
> assignment?  This will cause static checker warnings at the very least.
> 
>> +			p_attr->support_decoders |= (1 << STD_HEVC);
>> +			p_attr->support_encoders = (1 << STD_AVC);
>> +			p_attr->support_encoders |= (1 << STD_HEVC);
>> +		}
>> +	}
>> +	if (p_attr->product_id == PRODUCT_ID_511) {
> 
> Make this an } else if { for easier reading.
> 
>> +		p_attr->support_decoders = (1 << STD_HEVC);
>> +		p_attr->support_decoders |= (1 << STD_AVC);
>> +	}
>> +	if (p_attr->product_id == PRODUCT_ID_517) {
> 
> else if.
> 
>> +		p_attr->support_decoders = (((hw_config_def1 >> 4) & 0x01) << STD_AV1);
>> +		p_attr->support_decoders |= (((hw_config_def1 >> 3) & 0x01) << STD_AVS2);
>> +		p_attr->support_decoders |= (((hw_config_def1 >> 2) & 0x01) << STD_AVC);
>> +		p_attr->support_decoders |= (((hw_config_def1 >> 1) & 0x01) << STD_VP9);
>> +		p_attr->support_decoders |= (((hw_config_def1 >> 0) & 0x01) << STD_HEVC);
>> +	}
>> +
>> +	p_attr->support_backbone = (hw_config_def0 >> 16) & 0x01;
>> +	p_attr->support_vcpu_backbone = (hw_config_def0 >> 28) & 0x01;
>> +	p_attr->support_vcore_backbone = (hw_config_def0 >> 22) & 0x01;
>> +	p_attr->support_dual_core = (hw_config_def1 >> 26) & 0x01;
>> +	p_attr->support_endian_mask = (uint32_t)((1 << VDI_LITTLE_ENDIAN)
> 
> No need for the cast.  The | goes on the first line:  Use the BIT()
> macro.
> 
>> +			| (1 << VDI_BIG_ENDIAN)
>> +			| (1 << VDI_32BIT_LITTLE_ENDIAN) | (1 << VDI_32BIT_BIG_ENDIAN)
>> +			| (0xffffUL << 16));
> 
> Replace 0xffff magic number with a define.
> 
> 	p_attr->support_endian_mask = BIT(VDI_LITTLE_ENDIAN) |
> 				      BIT(VDI_BIG_ENDIAN) |
> 				      BIT(VDI_32BIT_LITTLE_ENDIAN) |
> 			              BIT(VDI_32BIT_BIG_ENDIAN) |
> 				      (0xffffUL << 16));
> 
> 
> 
>> +	p_attr->support_bitstream_mode = (1 << BS_MODE_INTERRUPT) |
>> +		(1 << BS_MODE_PIC_END);
>> +
>> +	return 0;
>> +}
>> +
>> +int wave5_vpu_get_version(struct vpu_device *vpu_dev, uint32_t *version_info,
>> +			  uint32_t *revision)
>> +{
>> +	u32 reg_val;
>> +	int ret;
>> +
>> +	vpu_write_reg(vpu_dev, W5_QUERY_OPTION, GET_VPU_INFO);
>> +	vpu_write_reg(vpu_dev, W5_VPU_BUSY_STATUS, 1);
>> +	vpu_write_reg(vpu_dev, W5_COMMAND, W5_QUERY);
>> +	vpu_write_reg(vpu_dev, W5_VPU_HOST_INT_REQ, 1);
>> +	ret = wave5_wait_vpu_busy(vpu_dev, VPU_BUSY_CHECK_TIMEOUT, W5_VPU_BUSY_STATUS);
>> +	if (ret) {
>> +		dev_err(vpu_dev->dev, "%s: timeout\n", __func__);
>> +		return ret;
>> +	}
>> +
>> +	if (!vpu_read_reg(vpu_dev, W5_RET_SUCCESS)) {
>> +		dev_err(vpu_dev->dev, "%s: FALSE\n", __func__);
>> +		return -EIO;
>> +	}
>> +
>> +	reg_val = vpu_read_reg(vpu_dev, W5_RET_FW_VERSION);
>> +	if (version_info)
>> +		*version_info = 0;
>> +	if (revision)
>> +		*revision = reg_val;
>> +
>> +	return 0;
>> +}
>> +
>> +int wave5_vpu_init(struct device *dev, void *firmware, uint32_t size)
>> +{
>> +	struct vpu_buf *vb;
>> +	dma_addr_t code_base, temp_base;
>> +	u32 code_size, temp_size;
>> +	u32 i, reg_val, remap_size;
>> +	u32 hw_option = 0;
> 
> What is "hw_option"?

according to the datasheet is sets the uart debug log:
"Set HW_OPTION register for activating hardware options such as UART or debug option. Generally, it is 0."

> 
>> +	int ret = 0;
> 
> Delete unused initializer?
> 
>> +	struct vpu_device *vpu_dev = dev_get_drvdata(dev);
>> +
>> +	vb = &vpu_dev->common_mem;
>> +
>> +	code_base = (dma_addr_t)vb->daddr;
> 
> Why is "vb->daddr" not just declared as dma_addr_t and remove all the
> casting?
> 
>> +	/* ALIGN TO 4KB */
>> +	code_size = (WAVE5_MAX_CODE_BUF_SIZE & ~0xfff);
>> +	if (code_size < size * 2)
> 
> Instead of passign firmware->size / 2, just pass firmware->size so we
> don't have to do the multiply here.  Better yet, just pass the whole
> fw struct.
> 
> 
>> +		return -EINVAL;
>> +
>> +	temp_base = (dma_addr_t)vb->daddr + WAVE5_TEMPBUF_OFFSET;
>> +	temp_size = WAVE5_TEMPBUF_SIZE;
>> +
>> +	dev_info(dev, "\n_vpu INIT start!!!\n");
> 
> A newline at the start (or anywhere before the end) of the dev_info()
> will break the output.  Just delete this debug output.  Look at dmesg
> and delete any other accidental debug output.
> 
>> +	vpu_write_mem(vpu_dev, vb, 0, (unsigned char *)firmware, size * 2,
>> +		      VDI_128BIT_LITTLE_ENDIAN);
>> +
>> +	reg_val = 0;
>> +	vpu_write_reg(vpu_dev, W5_PO_CONF, reg_val);
> 
> This "reg_val = 0;" does not help anyone.
> 
>> +
>> +	/* clear registers */
>> +
>> +	for (i = W5_CMD_REG_BASE; i < W5_CMD_REG_END; i += 4)
>> +		vpu_write_reg(vpu_dev, i, 0x00);
>> +
>> +	/* remap page size 0*/
>> +	remap_size = (W5_REMAP_MAX_SIZE >> 12) & 0x1ff;
>> +	reg_val = 0x80000000 | (WAVE5_UPPER_PROC_AXI_ID << 20) | (0 << 16)
>> +		| (W5_REMAP_INDEX0 << 12) | (1 << 11) | remap_size;
>> +	vpu_write_reg(vpu_dev, W5_VPU_REMAP_CTRL, reg_val);
>> +	vpu_write_reg(vpu_dev, W5_VPU_REMAP_VADDR, W5_REMAP_INDEX0 * W5_REMAP_MAX_SIZE);
>> +	vpu_write_reg(vpu_dev, W5_VPU_REMAP_PADDR, code_base + W5_REMAP_INDEX0 * W5_REMAP_MAX_SIZE);
>> +
>> +	/* remap page size 1*/
>> +	remap_size = (W5_REMAP_MAX_SIZE >> 12) & 0x1ff;
>> +	reg_val = 0x80000000 | (WAVE5_UPPER_PROC_AXI_ID << 20) | (0 << 16)
>> +		| (W5_REMAP_INDEX1 << 12) | (1 << 11) | remap_size;
>> +	vpu_write_reg(vpu_dev, W5_VPU_REMAP_CTRL, reg_val);
>> +	vpu_write_reg(vpu_dev, W5_VPU_REMAP_VADDR, W5_REMAP_INDEX1 * W5_REMAP_MAX_SIZE);
>> +	vpu_write_reg(vpu_dev, W5_VPU_REMAP_PADDR, code_base + W5_REMAP_INDEX1 * W5_REMAP_MAX_SIZE);
>> +
>> +	vpu_write_reg(vpu_dev, W5_ADDR_CODE_BASE, code_base);
>> +	vpu_write_reg(vpu_dev, W5_CODE_SIZE, code_size);
>> +	vpu_write_reg(vpu_dev, W5_CODE_PARAM, (WAVE5_UPPER_PROC_AXI_ID << 4) | 0);
>> +	vpu_write_reg(vpu_dev, W5_ADDR_TEMP_BASE, temp_base);
>> +	vpu_write_reg(vpu_dev, W5_TEMP_SIZE, temp_size);
>> +
>> +	vpu_write_reg(vpu_dev, W5_HW_OPTION, hw_option);
>> +
>> +	/* interrupt */
>> +	// encoder
>> +	reg_val = (1 << INT_WAVE5_ENC_SET_PARAM);
>> +	reg_val |= (1 << INT_WAVE5_ENC_PIC);
>> +	reg_val |= (1 << INT_WAVE5_BSBUF_FULL);
>> +	// decoder
>> +	reg_val |= (1 << INT_WAVE5_INIT_SEQ);
>> +	reg_val |= (1 << INT_WAVE5_DEC_PIC);
>> +	reg_val |= (1 << INT_WAVE5_BSBUF_EMPTY);
>> +	vpu_write_reg(vpu_dev, W5_VPU_VINT_ENABLE, reg_val);
>> +
>> +	reg_val = vpu_read_reg(vpu_dev, W5_VPU_RET_VPU_CONFIG0);
>> +	if (((reg_val >> 16) & 1) == 1) {
> 
> No need for the == 1.  Magic numbers also.
> 
> 	if ((reg_val >> 16) & 1) {
> 
>> +		reg_val = ((WAVE5_PROC_AXI_ID << 28) |
>> +				(WAVE5_PRP_AXI_ID << 24) |
>> +				(WAVE5_FBD_Y_AXI_ID << 20) |
>> +				(WAVE5_FBC_Y_AXI_ID << 16) |
>> +				(WAVE5_FBD_C_AXI_ID << 12) |
>> +				(WAVE5_FBC_C_AXI_ID << 8) |
>> +				(WAVE5_PRI_AXI_ID << 4) |
>> +				(WAVE5_SEC_AXI_ID << 0));
> 
> Make this align nicely.
> 
> 		reg_val = ((WAVE5_PROC_AXI_ID  << 28) |
> 			   (WAVE5_PRP_AXI_ID   << 24) |
> 			   (WAVE5_FBD_Y_AXI_ID << 20) |
> 		           (WAVE5_FBC_Y_AXI_ID << 16) |
> 			   (WAVE5_FBD_C_AXI_ID << 12) |
> 			   (WAVE5_FBC_C_AXI_ID << 8) |
> 			   (WAVE5_PRI_AXI_ID   << 4) |
> 			   (WAVE5_SEC_AXI_ID   << 0));
> 
> 
>> +		wave5_write_register(vpu_dev, W5_BACKBONE_PROG_AXI_ID, reg_val);
>> +	}
>> +
>> +	vb = get_sram_memory(vpu_dev);
>> +
>> +	vpu_write_reg(vpu_dev, W5_ADDR_SEC_AXI, vb->daddr);
>> +	vpu_write_reg(vpu_dev, W5_SEC_AXI_SIZE, vb->size);
>> +	vpu_write_reg(vpu_dev, W5_VPU_BUSY_STATUS, 1);
>> +	vpu_write_reg(vpu_dev, W5_COMMAND, W5_INIT_VPU);
>> +	vpu_write_reg(vpu_dev, W5_VPU_REMAP_CORE_START, 1);
>> +	ret = wave5_wait_vpu_busy(vpu_dev, VPU_BUSY_CHECK_TIMEOUT, W5_VPU_BUSY_STATUS);
>> +	if (ret) {
>> +		dev_err(vpu_dev->dev, "VPU init(W5_VPU_REMAP_CORE_START) timeout\n");
>> +		return ret;
>> +	}
>> +
>> +	reg_val = vpu_read_reg(vpu_dev, W5_RET_SUCCESS);
>> +	if (!reg_val) {
>> +		u32 reason_code = vpu_read_reg(vpu_dev, W5_RET_FAIL_REASON);
>> +
>> +		wave5_print_reg_err(vpu_dev, reason_code);
>> +		return -EIO;
>> +	}
>> +
>> +	ret = setup_wave5_properties(dev);
>> +	return ret;
> 
> 	return setup_wave5_properties(dev);
> 
>> +}
>> +
>> +int wave5_vpu_build_up_dec_param(struct vpu_instance *vpu_inst,
>> +				 struct dec_open_param *param)
>> +{
>> +	int ret = 0;
> 
> Unused initializer.
> 
>> +	struct dec_info *p_dec_info = &vpu_inst->codec_info->dec_info;
>> +	u32 bs_endian = 0;
> 
> Unused initializer.
> 
>> +	struct vpu_buf *vb;
>> +	struct vpu_device *vpu_dev = vpu_inst->dev;
>> +
>> +	switch (vpu_inst->std) {
>> +	case W_HEVC_DEC:
>> +		p_dec_info->seq_change_mask = SEQ_CHANGE_ENABLE_ALL_HEVC;
>> +		break;
>> +	case W_VP9_DEC:
>> +		p_dec_info->seq_change_mask = SEQ_CHANGE_ENABLE_ALL_VP9;
>> +		break;
>> +	case W_AVS2_DEC:
>> +		p_dec_info->seq_change_mask = SEQ_CHANGE_ENABLE_ALL_AVS2;
>> +		break;
>> +	case W_AVC_DEC:
>> +		p_dec_info->seq_change_mask = SEQ_CHANGE_ENABLE_ALL_AVC;
>> +		break;
>> +	case W_AV1_DEC:
>> +		p_dec_info->seq_change_mask = SEQ_CHANGE_ENABLE_ALL_AV1;
>> +		break;
>> +	default:
>> +		return -EINVAL;
>> +	}
>> +
>> +	if (vpu_dev->product == PRODUCT_ID_517)
>> +		p_dec_info->vb_work.size = (uint32_t)WAVE517_WORKBUF_SIZE;
>> +	else if (vpu_dev->product == PRODUCT_ID_521)
>> +		p_dec_info->vb_work.size = (uint32_t)WAVE521DEC_WORKBUF_SIZE;
>> +	else if (vpu_dev->product == PRODUCT_ID_511)
>> +		p_dec_info->vb_work.size = (uint32_t)WAVE521DEC_WORKBUF_SIZE;
> 
> Delete these casts.
> 
>> +
>> +	ret = wave5_vdi_allocate_dma_memory(vpu_inst->dev, &p_dec_info->vb_work);
>> +	if (ret) {
>> +		memset(&p_dec_info->vb_work, 0, sizeof(p_dec_info->vb_work));
> 
> Why is this memset required?  The caller is just going to free it.
> 
>> +		return ret;
>> +	}
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_VCORE_INFO, 1);
>> +
>> +	vb = get_sram_memory(vpu_inst->dev);
>> +	p_dec_info->sec_axi_info.buf_base = vb->daddr;
>> +	p_dec_info->sec_axi_info.buf_size = vb->size;
>> +
>> +	wave5_vdi_clear_memory(vpu_inst->dev, &p_dec_info->vb_work);
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_ADDR_WORK_BASE, p_dec_info->vb_work.daddr);
>> +	vpu_write_reg(vpu_inst->dev, W5_WORK_SIZE, p_dec_info->vb_work.size);
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_BS_START_ADDR, p_dec_info->stream_buf_start_addr);
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_BS_SIZE, p_dec_info->stream_buf_size);
>> +
>> +	/* NOTE: when endian mode is 0, SDMA reads MSB first */
>> +	bs_endian = wave5_vdi_convert_endian(vpu_inst->dev, param->stream_endian);
>> +	bs_endian = (~bs_endian & VDI_128BIT_ENDIAN_MASK);
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_BS_PARAM, bs_endian);
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_NUM_CQ_DEPTH_M1, (COMMAND_QUEUE_DEPTH - 1));
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_ERR_CONCEAL, (param->error_conceal_unit << 2) |
>> +			(param->error_conceal_mode));
>> +
>> +	wave5_bit_issue_command(vpu_inst, W5_CREATE_INSTANCE);
>> +	// check QUEUE_DONE
>> +	ret = wave5_wait_vpu_busy(vpu_inst->dev, VPU_BUSY_CHECK_TIMEOUT, W5_VPU_BUSY_STATUS);
>> +	if (ret) {
>> +		dev_warn(vpu_inst->dev->dev, "create instance timed out\n");
>> +		wave5_vdi_free_dma_memory(vpu_dev, &p_dec_info->vb_work);
>> +		return ret;
>> +	}
>> +
>> +	if (!vpu_read_reg(vpu_inst->dev, W5_RET_SUCCESS)) { // FAILED for adding into VCPU QUEUE
>> +		wave5_vdi_free_dma_memory(vpu_dev, &p_dec_info->vb_work);
>> +		ret = -EIO;
> 
> If more than one function needs to release something then use a goto.
> Try not to mix the success path and the failure path.
> 
> 	if (!vpu_read_reg(vpu_inst->dev, W5_RET_SUCCESS)) { // failed adding to VCPU QUEUE
> 		ret = -EIO;
> 		goto free_vb_work;
> 	}
> 
>> +	}
>> +
>> +	p_dec_info->product_code = vpu_read_reg(vpu_inst->dev, W5_PRODUCT_NUMBER);
>> +
>> +	return ret;
> 
> 	return 0;
> 
> free_dma:
> 	wave5_vdi_free_dma_memory(vpu_dev, &p_dec_info->vb_work);
> 	return ret;
> 
>> +}
>> +
>> +int wave5_vpu_dec_init_seq(struct vpu_instance *vpu_inst)
>> +{
>> +	struct dec_info *p_dec_info;
>> +	u32 cmd_option = INIT_SEQ_NORMAL, bs_option;
>> +	u32 reg_val;
>> +	int ret;
>> +
>> +	if (!vpu_inst->codec_info)
>> +		return -EINVAL;
>> +
>> +	p_dec_info = &vpu_inst->codec_info->dec_info;
>> +	if (p_dec_info->thumbnail_mode)
>> +		cmd_option = INIT_SEQ_W_THUMBNAIL;
>> +
>> +	/* set attributes of bitstream buffer controller */
>> +	bs_option = 0;
>> +	switch (p_dec_info->open_param.bitstream_mode) {
>> +	case BS_MODE_INTERRUPT:
>> +		if (p_dec_info->seq_init_escape)
>> +			bs_option = BSOPTION_ENABLE_EXPLICIT_END;
>> +		break;
>> +	case BS_MODE_PIC_END:
>> +		bs_option = BSOPTION_ENABLE_EXPLICIT_END;
>> +		break;
>> +	default:
>> +		return -EINVAL;
>> +	}
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_BS_RD_PTR, p_dec_info->stream_rd_ptr);
>> +	vpu_write_reg(vpu_inst->dev, W5_BS_WR_PTR, p_dec_info->stream_wr_ptr);
>> +
>> +	if (p_dec_info->stream_endflag == 1)
>> +		bs_option = 3;
>> +	if (vpu_inst->std == W_AV1_DEC)
>> +		bs_option |= ((p_dec_info->open_param.av1_format) << 2);
>> +	vpu_write_reg(vpu_inst->dev, W5_BS_OPTION, (1UL << 31) | bs_option);
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_COMMAND_OPTION, cmd_option);
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_USER_MASK, p_dec_info->user_data_enable);
>> +
>> +	wave5_bit_issue_command(vpu_inst, W5_INIT_SEQ);
>> +
>> +	// check QUEUE_DONE
>> +	ret = wave5_wait_vpu_busy(vpu_inst->dev, VPU_BUSY_CHECK_TIMEOUT, W5_VPU_BUSY_STATUS);
>> +	if (ret) {
>> +		dev_warn(vpu_inst->dev->dev, "init seq timed out\n");
>> +		return ret;
>> +	}
>> +
>> +	reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_QUEUE_STATUS);
>> +
>> +	p_dec_info->instance_queue_count = (reg_val >> 16) & 0xff;
>> +	p_dec_info->report_queue_count = (reg_val & 0xffff);
>> +
>> +	// FAILED for adding a command into VCPU QUEUE
>> +	if (!vpu_read_reg(vpu_inst->dev, W5_RET_SUCCESS)) {
>> +		reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_FAIL_REASON);
>> +		wave5_print_reg_err(vpu_inst->dev, reg_val);
>> +		return -EIO;
>> +	}
>> +
>> +	return ret;
> 
> 	return 0;
> 
>> +}
>> +
>> +static void wave5_get_dec_seq_result(struct vpu_instance *vpu_inst, struct dec_initial_info *info)
>> +{
>> +	u32 reg_val, sub_layer_info;
>> +	u32 profile_compatibility_flag;
>> +	u32 left, right, top, bottom;
>> +	u32 output_bit_depth_minus8;
>> +	struct dec_info *p_dec_info = &vpu_inst->codec_info->dec_info;
>> +
>> +	p_dec_info->stream_rd_ptr = wave5_vpu_dec_get_rd_ptr(vpu_inst);
>> +	info->rd_ptr = p_dec_info->stream_rd_ptr;
>> +
>> +	p_dec_info->frame_display_flag = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_DISP_IDC);
>> +
>> +	reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_PIC_SIZE);
>> +	info->pic_width = ((reg_val >> 16) & 0xffff);
>> +	info->pic_height = (reg_val & 0xffff);
>> +	info->min_frame_buffer_count = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_NUM_REQUIRED_FB);
>> +	info->frame_buf_delay = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_NUM_REORDER_DELAY);
>> +
>> +	reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_CROP_LEFT_RIGHT);
>> +	left = (reg_val >> 16) & 0xffff;
>> +	right = reg_val & 0xffff;
>> +	reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_CROP_TOP_BOTTOM);
>> +	top = (reg_val >> 16) & 0xffff;
>> +	bottom = reg_val & 0xffff;
>> +
>> +	info->pic_crop_rect.left = left;
>> +	info->pic_crop_rect.right = info->pic_width - right;
>> +	info->pic_crop_rect.top = top;
>> +	info->pic_crop_rect.bottom = info->pic_height - bottom;
>> +
>> +	info->f_rate_numerator = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_FRAME_RATE_NR);
>> +	info->f_rate_denominator = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_FRAME_RATE_DR);
>> +
>> +	reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_COLOR_SAMPLE_INFO);
>> +	info->luma_bitdepth = (reg_val >> 0) & 0x0f;
>> +	info->chroma_bitdepth = (reg_val >> 4) & 0x0f;
>> +	info->chroma_format_idc = (reg_val >> 8) & 0x0f;
>> +	info->aspect_rate_info = (reg_val >> 16) & 0xff;
>> +	info->is_ext_sar = (info->aspect_rate_info == 255 ? TRUE : FALSE);
>> +	/* [0:15] - vertical size, [16:31] - horizontal size */
>> +	if (info->is_ext_sar)
>> +		info->aspect_rate_info = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_ASPECT_RATIO);
>> +	info->bit_rate = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_BIT_RATE);
>> +
>> +	sub_layer_info = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_SUB_LAYER_INFO);
>> +	info->max_temporal_layers = (sub_layer_info >> 8) & 0x7;
>> +
>> +	reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_SEQ_PARAM);
>> +	info->level = reg_val & 0xff;
>> +	profile_compatibility_flag = (reg_val >> 12) & 0xff;
>> +	info->profile = (reg_val >> 24) & 0x1f;
>> +	info->tier = (reg_val >> 29) & 0x01;
>> +	output_bit_depth_minus8 = (reg_val >> 30) & 0x03;
>> +
>> +	if (vpu_inst->std == W_HEVC_DEC) {
>> +		/* guessing profile */
>> +		if (!info->profile) {
>> +			if ((profile_compatibility_flag & 0x06) == 0x06)
>> +				info->profile = HEVC_PROFILE_MAIN; /* main profile */
>> +			else if ((profile_compatibility_flag & 0x04) == 0x04)
>> +				info->profile = HEVC_PROFILE_MAIN10; /* main10 profile */
>> +			else if ((profile_compatibility_flag & 0x08) == 0x08)
>> +				/* main still picture profile */
>> +				info->profile = HEVC_PROFILE_STILLPICTURE;
>> +			else
>> +				info->profile = HEVC_PROFILE_MAIN; /* for old version HM */
>> +		}
>> +
>> +	} else if (vpu_inst->std == W_AVS2_DEC) {
>> +		if (info->luma_bitdepth == 10 && output_bit_depth_minus8 == 2)
>> +			info->output_bit_depth = 10;
>> +		else
>> +			info->output_bit_depth = 8;
>> +
>> +	} else if (vpu_inst->std == W_AVC_DEC) {
>> +		info->profile = (reg_val >> 24) & 0x7f;
>> +	} else if (vpu_inst->std == W_AV1_DEC) {
>> +		info->max_spatial_layers = (sub_layer_info >> 24) & 0x3;
>> +	}
>> +
>> +	info->vlc_buf_size = vpu_read_reg(vpu_inst->dev, W5_RET_VLC_BUF_SIZE);
>> +	info->param_buf_size = vpu_read_reg(vpu_inst->dev, W5_RET_PARAM_BUF_SIZE);
>> +	p_dec_info->vlc_buf_size = info->vlc_buf_size;
>> +	p_dec_info->param_buf_size = info->param_buf_size;
>> +}
>> +
>> +int wave5_vpu_dec_get_seq_info(struct vpu_instance *vpu_inst, struct dec_initial_info *info)
>> +{
>> +	int ret;
>> +	u32 reg_val, i;
>> +	struct dec_info *p_dec_info;
>> +
>> +	p_dec_info = &vpu_inst->codec_info->dec_info;
> 
> Move to initializer.
> 
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_ADDR_REPORT_BASE, p_dec_info->user_data_buf_addr);
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_REPORT_SIZE, p_dec_info->user_data_buf_size);
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_REPORT_PARAM,
>> +		      VPU_USER_DATA_ENDIAN & VDI_128BIT_ENDIAN_MASK);
>> +
>> +	// send QUERY cmd
>> +	ret = wave5_send_query(vpu_inst, GET_RESULT);
>> +	if (ret) {
>> +		if (ret == -EIO) {
>> +			reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_FAIL_REASON);
>> +			wave5_print_reg_err(vpu_inst->dev, reg_val);
>> +		}
>> +		return ret;
>> +	}
>> +
>> +	dev_dbg(vpu_inst->dev->dev, "init seq complete\n");
>> +
>> +	reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_QUEUE_STATUS);
>> +
>> +	p_dec_info->instance_queue_count = (reg_val >> 16) & 0xff;
>> +	p_dec_info->report_queue_count = (reg_val & 0xffff);
>> +
>> +	if (vpu_read_reg(vpu_inst->dev, W5_RET_DEC_DECODING_SUCCESS) != 1) {
>> +		info->seq_init_err_reason = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_ERR_INFO);
>> +		ret = -EIO;
> 
> Why are we continuing here instead of just returning -EIO?
> (I don't like mixing error paths and success paths).
> 
> 
>> +	} else {
>> +		info->warn_info = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_WARN_INFO);
>> +	}
>> +
>> +	// get sequence info
>> +	info->user_data_size = 0;
>> +	info->user_data_num = 0;
>> +	info->user_data_buf_full = 0;
>> +	info->user_data_header = vpu_read_reg(vpu_inst->dev, W5_RET_DEC_USERDATA_IDC);
>> +	if (info->user_data_header) {
>> +		reg_val = info->user_data_header;
>> +		for (i = 0; i < 32; i++) {
>> +			if (i == 1) {
>> +				if (reg_val & (1 << i))
>> +					info->user_data_buf_full = 1;
>> +			} else {
>> +				if (reg_val & (1 << i))
>> +					info->user_data_num++;
>> +			}
>> +		}
>> +		info->user_data_size = p_dec_info->user_data_buf_size;
>> +	}
>> +
>> +	wave5_get_dec_seq_result(vpu_inst, info);
>> +
>> +	return ret;
>> +}
>> +
>> +int wave5_vpu_dec_register_framebuffer(struct vpu_instance *vpu_inst, struct frame_buffer *fb_arr,
>> +				       enum tiled_map_type map_type, uint32_t count)
>> +{
>> +	int ret = 0;
> 
> Get rid of this initializer.  Return 0; at the end.
> 
>> +	struct dec_info *p_dec_info = &vpu_inst->codec_info->dec_info;
>> +	s32 q, j, i, remain, idx;
> 
> Never use s32 unless it is part of the hardware spec.  What is "q"???
> 
>> +	u32 mv_count;
> 
> Get rid of the mv_count variable.
> 
>> +	u32 k;
> 
> There are too many iterators.  Use "i" instead of "k".  Iterators should
> either be int, size_t or u64.  Every thing else is nonsense.  GCC

Could you explain when should an iterator be size_t and when should it be u64 ?

> encourages bad iterator types and it regularly causes kernel bugs.  GCC

> is sometimes wrong headed.
> 
>> +	s32 start_no, end_no;
>> +	u32 reg_val, cbcr_interleave, nv21, pic_size;
>> +	u32 endian, yuv_format = 0;
>> +	u32 addr_y, addr_cb, addr_cr;
>> +	u32 mv_col_size, fbc_y_tbl_size, fbc_c_tbl_size;
>> +	struct vpu_buf vb_buffer;
>> +	u32 color_format = 0;
>> +	u32 init_pic_width = 0, init_pic_height = 0;
>> +	u32 pixel_order = 1;
>> +	u32 bwb_flag = (map_type == LINEAR_FRAME_MAP) ? 1 : 0;
>> +
>> +	cbcr_interleave = p_dec_info->open_param.cbcr_interleave;
>> +	nv21 = p_dec_info->open_param.nv21;
>> +	mv_col_size = 0;
>> +	fbc_y_tbl_size = 0;
>> +	fbc_c_tbl_size = 0;
>> +
>> +	init_pic_width = p_dec_info->initial_info.pic_width;
>> +	init_pic_height = p_dec_info->initial_info.pic_height;
>> +
>> +	if (map_type >= COMPRESSED_FRAME_MAP) {
>> +		cbcr_interleave = 0;
>> +		nv21 = 0;
>> +
>> +		switch (vpu_inst->std) {
>> +		case W_HEVC_DEC:
>> +			mv_col_size = WAVE5_DEC_HEVC_BUF_SIZE(init_pic_width, init_pic_height);
>> +			break;
>> +		case W_VP9_DEC:
>> +			mv_col_size = WAVE5_DEC_VP9_BUF_SIZE(init_pic_width, init_pic_height);
>> +			break;
>> +		case W_AVS2_DEC:
>> +			mv_col_size = WAVE5_DEC_AVS2_BUF_SIZE(init_pic_width, init_pic_height);
>> +			break;
>> +		case W_AVC_DEC:
>> +			mv_col_size = WAVE5_DEC_AVC_BUF_SIZE(init_pic_width, init_pic_height);
>> +			break;
>> +		case W_AV1_DEC:
>> +			mv_col_size = WAVE5_DEC_AV1_BUF_SZ_1(init_pic_width, init_pic_height) +
>> +				WAVE5_DEC_AV1_BUF_SZ_2(init_pic_width, init_pic_width,
>> +						       init_pic_height);
>> +			break;
>> +		default:
>> +			return -EINVAL;
>> +		}
>> +
>> +		mv_col_size = ALIGN(mv_col_size, 16);
>> +		vb_buffer.daddr = 0;
>> +		if (vpu_inst->std == W_HEVC_DEC || vpu_inst->std == W_AVS2_DEC || vpu_inst->std ==
>> +				W_VP9_DEC || vpu_inst->std == W_AVC_DEC || vpu_inst->std ==
>> +				W_AV1_DEC) {
>> +			/* 4096 is a margin */
>> +			vb_buffer.size = ((mv_col_size + 4095) & ~4095) + 4096;
>> +			mv_count = count;
>> +
>> +			for (k = 0 ; k < mv_count ; k++) {
>> +				if (p_dec_info->vb_mv[k].size == 0) {
>> +					ret = wave5_vdi_allocate_dma_memory(vpu_inst->dev, &vb_buffer);
>> +					if (ret)
>> +						return ret;
>> +					p_dec_info->vb_mv[k] = vb_buffer;
>> +				}
>> +			}
>> +		}
>> +
>> +		if (p_dec_info->product_code == WAVE521C_DUAL_CODE) {
>> +			u32 bgs_width = (p_dec_info->initial_info.luma_bitdepth > 8 ? 256 :
>> +					512);
>> +			u32 ot_bg_width = 1024;
>> +			u32 frm_width = VPU_CEIL(init_pic_width, 16);
>> +			u32 frm_height = VPU_CEIL(init_pic_height, 16);
>> +			// valid_width = align(width, 16),
>> +			// comp_frm_width = align(valid_width+pad_x, 16)
>> +			u32 comp_frm_width = VPU_CEIL(VPU_CEIL(frm_width, 16) + 16, 16);
>> +			// 1024 = offset table BG width
>> +			u32 ot_frm_width = VPU_CEIL(comp_frm_width, ot_bg_width);
>> +
>> +			// sizeof_offset_table()
>> +			u32 ot_bg_height = 32;
>> +			u32 bgs_height = (1 << 14) / bgs_width /
>> +				(p_dec_info->initial_info.luma_bitdepth > 8 ? 2 : 1);
>> +			u32 comp_frm_height = VPU_CEIL(VPU_CEIL(frm_height, 4) + 4, bgs_height);
>> +			u32 ot_frm_height = VPU_CEIL(comp_frm_height, ot_bg_height);
>> +
>> +			fbc_y_tbl_size = (ot_frm_width / 16) * (ot_frm_height / 4) * 2;
>> +		} else {
>> +			switch (vpu_inst->std) {
>> +			case W_HEVC_DEC:
>> +				fbc_y_tbl_size = WAVE5_FBC_LUMA_TABLE_SIZE(init_pic_width,
>> +									   init_pic_height);
>> +				break;
>> +			case W_VP9_DEC:
>> +				fbc_y_tbl_size =
>> +					WAVE5_FBC_LUMA_TABLE_SIZE(ALIGN(init_pic_width, 64),
>> +								  ALIGN(init_pic_height, 64));
>> +				break;
>> +			case W_AVS2_DEC:
>> +				fbc_y_tbl_size = WAVE5_FBC_LUMA_TABLE_SIZE(init_pic_width,
>> +									   init_pic_height);
>> +				break;
>> +			case W_AVC_DEC:
>> +				fbc_y_tbl_size = WAVE5_FBC_LUMA_TABLE_SIZE(init_pic_width,
>> +									   init_pic_height);
>> +				break;
>> +			case W_AV1_DEC:
>> +				fbc_y_tbl_size =
>> +					WAVE5_FBC_LUMA_TABLE_SIZE(ALIGN(init_pic_width, 16),
>> +								  ALIGN(init_pic_height, 8));
>> +				break;
>> +			default:
>> +				return -EINVAL;
>> +			}
>> +			fbc_y_tbl_size = ALIGN(fbc_y_tbl_size, 16);
>> +		}
>> +
>> +		vb_buffer.daddr = 0;
>> +		vb_buffer.size = ((fbc_y_tbl_size + 4095) & ~4095) + 4096;
> 
> This looks like an open coded round_up()?

not sure about that, it seems like twice round up (rounding up to a multiple of 4096 and then adding 4096)

> 
>> +		for (k = 0 ; k < count ; k++) {
>> +			if (p_dec_info->vb_fbc_y_tbl[k].size == 0) {
>> +				ret = wave5_vdi_allocate_dma_memory(vpu_inst->dev, &vb_buffer);
>> +				if (ret)
>> +					return ret;
>> +				p_dec_info->vb_fbc_y_tbl[k] = vb_buffer;
>> +			}
>> +		}
>> +
>> +		if (p_dec_info->product_code == WAVE521C_DUAL_CODE) {
>> +			u32 bgs_width = (p_dec_info->initial_info.chroma_bitdepth > 8 ? 256 : 512);
>> +			u32 ot_bg_width = 1024;
>> +			u32 frm_width = VPU_CEIL(init_pic_width, 16);
>> +			u32 frm_height = VPU_CEIL(init_pic_height, 16);
>> +			u32 comp_frm_width = VPU_CEIL(VPU_CEIL(frm_width / 2, 16) + 16, 16);
>> +			// valid_width = align(width, 16),
>> +			// comp_frm_width = align(valid_width+pad_x, 16)
>> +			// 1024 = offset table BG width
>> +			u32 ot_frm_width = VPU_CEIL(comp_frm_width, ot_bg_width);
>> +
>> +			// sizeof_offset_table()
>> +			u32 ot_bg_height = 32;
>> +			u32 bgs_height = (1 << 14) / bgs_width /
>> +				(p_dec_info->initial_info.chroma_bitdepth > 8 ? 2 : 1);
>> +			u32 comp_frm_height = VPU_CEIL(VPU_CEIL(frm_height, 4) + 4, bgs_height);
>> +			u32 ot_frm_height = VPU_CEIL(comp_frm_height, ot_bg_height);
>> +
>> +			fbc_c_tbl_size = (ot_frm_width / 16) * (ot_frm_height / 4) * 2;
>> +		} else {
>> +			switch (vpu_inst->std) {
>> +			case W_HEVC_DEC:
>> +				fbc_c_tbl_size = WAVE5_FBC_CHROMA_TABLE_SIZE(init_pic_width,
>> +									     init_pic_height);
>> +				break;
>> +			case W_VP9_DEC:
>> +				fbc_c_tbl_size =
>> +					WAVE5_FBC_CHROMA_TABLE_SIZE(ALIGN(init_pic_width, 64),
>> +								    ALIGN(init_pic_height, 64));
>> +				break;
>> +			case W_AVS2_DEC:
>> +				fbc_c_tbl_size = WAVE5_FBC_CHROMA_TABLE_SIZE(init_pic_width,
>> +									     init_pic_height);
>> +				break;
>> +			case W_AVC_DEC:
>> +				fbc_c_tbl_size = WAVE5_FBC_CHROMA_TABLE_SIZE(init_pic_width,
>> +									     init_pic_height);
>> +				break;
>> +			case W_AV1_DEC:
>> +				fbc_c_tbl_size =
>> +					WAVE5_FBC_CHROMA_TABLE_SIZE(ALIGN(init_pic_width, 16),
>> +								    ALIGN(init_pic_height, 8));
>> +				break;
>> +			default:
>> +				return -EINVAL;
>> +			}
>> +			fbc_c_tbl_size = ALIGN(fbc_c_tbl_size, 16);
>> +		}
>> +
>> +		vb_buffer.daddr = 0;
>> +		vb_buffer.size = ((fbc_c_tbl_size + 4095) & ~4095) + 4096;
>> +		for (k = 0 ; k < count ; k++) {
>> +			if (p_dec_info->vb_fbc_c_tbl[k].size == 0) {
>> +				ret = wave5_vdi_allocate_dma_memory(vpu_inst->dev, &vb_buffer);
>> +				if (ret)
>> +					return ret;
>> +				p_dec_info->vb_fbc_c_tbl[k] = vb_buffer;
>> +			}
>> +		}
>> +		pic_size = (init_pic_width << 16) | (init_pic_height);
>> +
>> +		// allocate task_buffer
>> +		vb_buffer.size = (uint32_t)((p_dec_info->vlc_buf_size * VLC_BUF_NUM) +
>> +				(p_dec_info->param_buf_size * COMMAND_QUEUE_DEPTH));
>> +		vb_buffer.daddr = 0;
>> +		ret = wave5_vdi_allocate_dma_memory(vpu_inst->dev, &vb_buffer);
>> +		if (ret)
>> +			return ret;
>> +
>> +		p_dec_info->vb_task = vb_buffer;
>> +
>> +		vpu_write_reg(vpu_inst->dev, W5_CMD_SET_FB_ADDR_TASK_BUF,
>> +			      p_dec_info->vb_task.daddr);
>> +		vpu_write_reg(vpu_inst->dev, W5_CMD_SET_FB_TASK_BUF_SIZE, vb_buffer.size);
>> +	} else {
>> +		pic_size = (init_pic_width << 16) | (init_pic_height);
>> +	}
>> +	endian = wave5_vdi_convert_endian(vpu_inst->dev, fb_arr[0].endian);
>> +	vpu_write_reg(vpu_inst->dev, W5_PIC_SIZE, pic_size);
>> +
>> +	yuv_format = 0;
> 
> yuv_format was already set to zero.  Zero is a magic number.
> 
>> +	color_format = 0;
> 
> Same same.

The datasheet says bits 17:27 are reserved, so no idea what those are

> 
>> +
>> +	reg_val =
>> +		(bwb_flag << 28) |
>> +		(pixel_order << 23) | /* PIXEL ORDER in 128bit. first pixel in low address */
>> +		(yuv_format << 20) |
>> +		(color_format << 19) |
>> +		(nv21 << 17) |
>> +		(cbcr_interleave << 16) |
>> +		(fb_arr[0].stride);
>> +	vpu_write_reg(vpu_inst->dev, W5_COMMON_PIC_INFO, reg_val); //// 0x008012c0
>> +
>> +	remain = count;
>> +	q = (remain + 7) / 8;
>> +	idx = 0;
>> +	for (j = 0; j < q; j++) {
>> +		reg_val = (endian << 16) | (j == q - 1) << 4 | ((j == 0) << 3);//lint !e514
>> +		reg_val |= (p_dec_info->open_param.enable_non_ref_fbc_write << 26);
>> +		vpu_write_reg(vpu_inst->dev, W5_SFB_OPTION, reg_val);
>> +		start_no = j * 8;
>> +		end_no = start_no + (remain >= 8 ? 8 : remain) - 1;
>> +
>> +		vpu_write_reg(vpu_inst->dev, W5_SET_FB_NUM, (start_no << 8) | end_no);
>> +
>> +		for (i = 0; i < 8 && i < remain; i++) {
>> +			if (map_type == LINEAR_FRAME_MAP && p_dec_info->open_param.cbcr_order ==
>> +					CBCR_ORDER_REVERSED) {
>> +				addr_y = fb_arr[i + start_no].buf_y;
>> +				addr_cb = fb_arr[i + start_no].buf_cr;
>> +				addr_cr = fb_arr[i + start_no].buf_cb;
>> +			} else {
>> +				addr_y = fb_arr[i + start_no].buf_y;
>> +				addr_cb = fb_arr[i + start_no].buf_cb;
>> +				addr_cr = fb_arr[i + start_no].buf_cr;
>> +			}
>> +			vpu_write_reg(vpu_inst->dev, W5_ADDR_LUMA_BASE0 + (i << 4), addr_y);
>> +			vpu_write_reg(vpu_inst->dev, W5_ADDR_CB_BASE0 + (i << 4), addr_cb);
>> +			if (map_type >= COMPRESSED_FRAME_MAP) {
>> +				/* luma FBC offset table */
>> +				vpu_write_reg(vpu_inst->dev, W5_ADDR_FBC_Y_OFFSET0 + (i << 4),
>> +					      p_dec_info->vb_fbc_y_tbl[idx].daddr);
>> +				/* chroma FBC offset table */
>> +				vpu_write_reg(vpu_inst->dev, W5_ADDR_FBC_C_OFFSET0 + (i << 4),
>> +					      p_dec_info->vb_fbc_c_tbl[idx].daddr);
>> +				vpu_write_reg(vpu_inst->dev, W5_ADDR_MV_COL0 + (i << 2),
>> +					      p_dec_info->vb_mv[idx].daddr);
>> +			} else {
>> +				vpu_write_reg(vpu_inst->dev, W5_ADDR_CR_BASE0 + (i << 4), addr_cr);
>> +				vpu_write_reg(vpu_inst->dev, W5_ADDR_FBC_C_OFFSET0 + (i << 4), 0);
>> +				vpu_write_reg(vpu_inst->dev, W5_ADDR_MV_COL0 + (i << 2), 0);
>> +			}
>> +			idx++;
>> +		}
>> +		remain -= i;
>> +
>> +		wave5_bit_issue_command(vpu_inst, W5_SET_FB);
>> +		ret = wave5_wait_vpu_busy(vpu_inst->dev, VPU_BUSY_CHECK_TIMEOUT,
>> +					  W5_VPU_BUSY_STATUS);
>> +		if (ret)
>> +			return ret;
>> +	}
>> +
>> +	reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_SUCCESS);
>> +	if (!reg_val)
>> +		return -EIO;
>> +
>> +	return ret;
> 
> 	return 0;
> 
>> +}
>> +
>> +int wave5_vpu_decode(struct vpu_instance *vpu_inst, struct dec_param *option, u32 *fail_res)
>> +{
>> +	u32 mode_option = DEC_PIC_NORMAL, bs_option, reg_val;
>> +	s32 force_latency = -1;
> 
> Ugh....  Write this as:
> 
> 	bool force_latency = false;
> 
> 
>> +	struct dec_info *p_dec_info = &vpu_inst->codec_info->dec_info;
>> +	struct dec_open_param *p_open_param = &p_dec_info->open_param;
>> +	int ret;
>> +
>> +	if (p_dec_info->thumbnail_mode) {
>> +		mode_option = DEC_PIC_W_THUMBNAIL;
>> +	} else if (option->skipframe_mode) {
>> +		switch (option->skipframe_mode) {
>> +		case WAVE_SKIPMODE_NON_IRAP:
>> +			mode_option = SKIP_NON_IRAP;
>> +			force_latency = 0;
> 
> 	force_latency = true;
> 
>> +			break;
>> +		case WAVE_SKIPMODE_NON_REF:
>> +			mode_option = SKIP_NON_REF_PIC;
>> +			break;
>> +		default:
>> +			// skip off
>> +			break;
>> +		}
>> +	}
>> +
>> +	// set disable reorder
>> +	if (!p_dec_info->reorder_enable)
>> +		force_latency = 0;
> 
> 	force_latency = true;
> 
>> +
>> +	/* set attributes of bitstream buffer controller */
>> +	bs_option = 0;
>> +	reg_val = 0;
> 
> This assign is never used.
> 
>> +	switch (p_open_param->bitstream_mode) {
>> +	case BS_MODE_INTERRUPT:
>> +		bs_option = 0;
> 
> Already set above.
> 
>> +		break;
>> +	case BS_MODE_PIC_END:
>> +		bs_option = BSOPTION_ENABLE_EXPLICIT_END;
>> +		break;
>> +	default:
>> +		return -EINVAL;
>> +	}
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_BS_RD_PTR, p_dec_info->stream_rd_ptr);
>> +	vpu_write_reg(vpu_inst->dev, W5_BS_WR_PTR, p_dec_info->stream_wr_ptr);
>> +	if (p_dec_info->stream_endflag == 1)
>> +		bs_option = 3; // (stream_end_flag<<1) | EXPLICIT_END
>> +	if (p_open_param->bitstream_mode == BS_MODE_PIC_END)
>> +		bs_option |= (1UL << 31);
>> +	if (vpu_inst->std == W_AV1_DEC)
>> +		bs_option |= ((p_open_param->av1_format) << 2);
>> +	vpu_write_reg(vpu_inst->dev, W5_BS_OPTION, bs_option);
>> +
>> +	/* secondary AXI */
>> +	reg_val = (p_dec_info->sec_axi_info.wave.use_bit_enable << 0) |
>> +		(p_dec_info->sec_axi_info.wave.use_ip_enable << 9) |
>> +		(p_dec_info->sec_axi_info.wave.use_lf_row_enable << 15);
>> +	vpu_write_reg(vpu_inst->dev, W5_USE_SEC_AXI, reg_val);
>> +
>> +	/* set attributes of user buffer */
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_USER_MASK, p_dec_info->user_data_enable);
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_COMMAND_OPTION,
>> +		      ((option->disable_film_grain << 6) | (option->cra_as_bla_flag << 5) |
>> +		 mode_option));
> 
> These are badly aligned and contribute to the Wall of Text Effect that
> this code has.  :(
> 
> 	vpu_write_reg(vpu_inst->dev, W5_COMMAND_OPTION,
> 		      (option->disable_film_grain << 6) |
> 		      (option->cra_as_bla_flag << 5) |
> 		      mode_option);
> 
> 
> 
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_TEMPORAL_ID_PLUS1,
>> +		      ((p_dec_info->target_spatial_id + 1) << 9) |
>> +		 (p_dec_info->temp_id_select_mode << 8) | (p_dec_info->target_temp_id + 1));
> 
> 	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_TEMPORAL_ID_PLUS1,
> 		      ((p_dec_info->target_spatial_id + 1) << 9) |
> 		      (p_dec_info->temp_id_select_mode << 8) |
> 		      (p_dec_info->target_temp_id + 1));
> 
> Why do we have to add "+ 1" to p_dec_info->target_spatial_id?

for some reason the code defines 'DECODE_ALL_SPATIAL_LAYERS' to -1 and then adding '+ 1' set it to 0
no idea why is it implemented like that.

> 
> 
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_SEQ_CHANGE_ENABLE_FLAG, p_dec_info->seq_change_mask);
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_FORCE_FB_LATENCY_PLUS1, force_latency + 1);
> 
> 
> 	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_FORCE_FB_LATENCY_PLUS1, force_latency);

is it nice to write bool to a reigeter?, isn't it better to set 'force_latency' to u32?

> 
>> +
>> +	wave5_bit_issue_command(vpu_inst, W5_DEC_PIC);
>> +	// check QUEUE_DONE
>> +	ret = wave5_wait_vpu_busy(vpu_inst->dev, VPU_BUSY_CHECK_TIMEOUT, W5_VPU_BUSY_STATUS);
>> +	if (ret) {
>> +		dev_warn(vpu_inst->dev->dev, "dec pic timed out\n");
>> +		return -ETIMEDOUT;
>> +	}
>> +
>> +	reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_QUEUE_STATUS);
>> +
>> +	p_dec_info->instance_queue_count = (reg_val >> 16) & 0xff;
>> +	p_dec_info->report_queue_count = (reg_val & 0xffff);
>> +	// FAILED for adding a command into VCPU QUEUE
>> +	if (!vpu_read_reg(vpu_inst->dev, W5_RET_SUCCESS)) {
>> +		*fail_res = vpu_read_reg(vpu_inst->dev, W5_RET_FAIL_REASON);
>> +		wave5_print_reg_err(vpu_inst->dev, *fail_res);
>> +		return -EIO;
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>> +int wave5_vpu_dec_get_result(struct vpu_instance *vpu_inst, struct dec_output_info *result)
>> +{
>> +	int ret;
>> +	u32 reg_val, sub_layer_info, index, nal_unit_type;
>> +	struct dec_info *p_dec_info;
>> +	struct vpu_device *vpu_dev = vpu_inst->dev;
>> +
>> +	p_dec_info = &vpu_inst->codec_info->dec_info;
> 
> Move to initializer.
> 
>> +
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_ADDR_REPORT_BASE, p_dec_info->user_data_buf_addr);
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_REPORT_SIZE, p_dec_info->user_data_buf_size);
>> +	vpu_write_reg(vpu_inst->dev, W5_CMD_DEC_REPORT_PARAM,
>> +		      VPU_USER_DATA_ENDIAN & VDI_128BIT_ENDIAN_MASK);
>> +
>> +	// send QUERY cmd
>> +	ret = wave5_send_query(vpu_inst, GET_RESULT);
>> +
>> +	if (ret) {
> 
> Delete the blank line before the if statement.
> 
>> +		if (ret == -EIO) {
>> +			reg_val = vpu_read_reg(vpu_inst->dev, W5_RET_FAIL_REASON);
>> +			wave5_print_reg_err(vpu_inst->dev, reg_val);
>> +		}
>> +
>> +		return ret;
>> +	}
> 
> 
> Okay, I have to go.  I have run out of time for reviewing this code.
> 
> It's much better but there is still a way to go.

Thanks for the review, indeed long way to go.

Dafna

> 
> regards,
> dan carpenter
> 
> 

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