linux-kernel - Re: [PATCH 01/16] firmware: ti_sci: Add resource management APIs for ringacc, psi-l and udma

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Date:   Thu, 6 Jun 2019 15:04:51 +0300
From:   Peter Ujfalusi <peter.ujfalusi@...com>
To:     Lokesh Vutla <lokeshvutla@...com>, <vkoul@...nel.org>,
        <robh+dt@...nel.org>, <nm@...com>, <ssantosh@...nel.org>
CC:     <dan.j.williams@...el.com>, <dmaengine@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <grygorii.strashko@...com>, <t-kristo@...com>, <tony@...mide.com>
Subject: Re: [PATCH 01/16] firmware: ti_sci: Add resource management APIs for
 ringacc, psi-l and udma

Hi Lokesh,

On 06/06/2019 9.00, Lokesh Vutla wrote:
> Hi Peter,
> 
> On 06/05/19 6:04 PM, Peter Ujfalusi wrote:
>> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
> 
> Patch has the following checkpatch warnings and checks which can be fixed:
> 
> WARNING: Missing commit description - Add an appropriate one

How did I missed it?

> CHECK: Lines should not end with a '('
> #262: FILE: drivers/firmware/ti_sci.c:2286:
> +static int ti_sci_cmd_rm_udmap_tx_ch_cfg(
> 
> CHECK: Lines should not end with a '('
> #323: FILE: drivers/firmware/ti_sci.c:2347:
> +static int ti_sci_cmd_rm_udmap_rx_ch_cfg(
> 
> CHECK: Lines should not end with a '('
> #383: FILE: drivers/firmware/ti_sci.c:2407:
> +static int ti_sci_cmd_rm_udmap_rx_flow_cfg1(
> 
> CHECK: Lines should not end with a '('
> #1414: FILE: include/linux/soc/ti/ti_sci_protocol.h:455:
> +	int (*rx_flow_cfg)(
> 
> total: 0 errors, 2 warnings, 4 checks, 1399 lines checked

There must be a reason why these left, but I will take another look.

>> ---
>>  drivers/firmware/ti_sci.c              | 439 +++++++++++++++
>>  drivers/firmware/ti_sci.h              | 704 +++++++++++++++++++++++++
>>  include/linux/soc/ti/ti_sci_protocol.h | 216 ++++++++
>>  3 files changed, 1359 insertions(+)
>>
>> diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
>> index 64d895b80bc3..af3ebcdeab18 100644
>> --- a/drivers/firmware/ti_sci.c
>> +++ b/drivers/firmware/ti_sci.c
> 
> [..snip.]
> 
>> +}
>> +
>> +static int ti_sci_cmd_rm_psil_pair(const struct ti_sci_handle *handle,
>> +				   u32 nav_id, u32 src_thread, u32 dst_thread)
>> +{
> 
> All the psil ops doesn't have the  kernel-doc function comments. Just be
> consistent with other functions :)

OK.

>> +	struct ti_sci_msg_hdr *resp;
>> +	struct ti_sci_msg_psil_pair *req;
>> +	struct ti_sci_xfer *xfer;
>> +	struct ti_sci_info *info;
>> +	struct device *dev;
>> +	int ret = 0;
>> +
>> +	if (IS_ERR(handle))
>> +		return PTR_ERR(handle);
>> +	if (!handle)
>> +		return -EINVAL;
>> +
>> +	info = handle_to_ti_sci_info(handle);
>> +	dev = info->dev;
>> +
>> +	xfer = ti_sci_get_one_xfer(info, TI_SCI_MSG_RM_PSIL_PAIR,
>> +				   TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
>> +				   sizeof(*req), sizeof(*resp));
>> +	if (IS_ERR(xfer)) {
>> +		ret = PTR_ERR(xfer);
>> +		dev_err(dev, "RM_PSIL:Message reconfig failed(%d)\n", ret);
>> +		return ret;
>> +	}
>> +	req = (struct ti_sci_msg_psil_pair *)xfer->xfer_buf;
>> +	req->nav_id = nav_id;
>> +	req->src_thread = src_thread;
>> +	req->dst_thread = dst_thread;
>> +
>> +	ret = ti_sci_do_xfer(info, xfer);
>> +	if (ret) {
>> +		dev_err(dev, "RM_PSIL:Mbox send fail %d\n", ret);
>> +		goto fail;
>> +	}
>> +
>> +	resp = (struct ti_sci_msg_hdr *)xfer->xfer_buf;
>> +	ret = ti_sci_is_response_ack(resp) ? 0 : -EINVAL;
>> +
>> +fail:
>> +	ti_sci_put_one_xfer(&info->minfo, xfer);
>> +
>> +	return ret;
>> +}
>> +
> 
> [..snip..]
> 
>> + */
>> +struct ti_sci_msg_rm_ring_cfg_req {
>> +	struct ti_sci_msg_hdr hdr;
>> +	u32 valid_params;
>> +	u16 nav_id;
>> +	u16 index;
>> +	u32 addr_lo;
>> +	u32 addr_hi;
>> +	u32 count;
>> +	u8 mode;
>> +	u8 size;
>> +	u8 order_id;
>> +} __packed;
>> +
>> +/**
>> + * struct ti_sci_msg_rm_ring_cfg_resp - Response to configuring a ring.
>> + *
>> + * @hdr:	Generic Header
>> + */
>> +struct ti_sci_msg_rm_ring_cfg_resp {
>> +	struct ti_sci_msg_hdr hdr;
>> +} __packed;
> 
> If it is a generic ACK, NACK response, just use the header directly.

Sure, I'll fix it and other places if any.

> 
> [..snip..]
> 
>> + */
>> +struct ti_sci_msg_rm_udmap_rx_ch_cfg_req {
>> +	struct ti_sci_msg_hdr hdr;
>> +	u32 valid_params;
>> +	u16 nav_id;
>> +	u16 index;
>> +	u16 rx_fetch_size;
>> +	u16 rxcq_qnum;
>> +	u8 rx_priority;
>> +	u8 rx_qos;
>> +	u8 rx_orderid;
>> +	u8 rx_sched_priority;
>> +	u16 flowid_start;
>> +	u16 flowid_cnt;
>> +	u8 rx_pause_on_err;
>> +	u8 rx_atype;
>> +	u8 rx_chan_type;
>> +	u8 rx_ignore_short;
>> +	u8 rx_ignore_long;
>> +	u8 rx_burst_size;
>> +
> 
> extra line?

Will remove it.
> 
>> +} __packed;
>> +
>> +/**
> 
> 
> Thanks and regards,
> Lokesh
> 

Thanks,
- Péter

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