On 3/10/2016 9:06 PM, Vinod Koul wrote:
> On Thu, Feb 04, 2016 at 11:34:36PM -0500, Sinan Kaya wrote:
>
>> +
>> +#define EVRE_SIZE 16 /* each EVRE is 16 bytes */
>> +
>> +#define TRCA_CTRLSTS_OFFSET 0x000
>> +#define TRCA_RING_LOW_OFFSET 0x008
>> +#define TRCA_RING_HIGH_OFFSET 0x00C
>> +#define TRCA_RING_LEN_OFFSET 0x010
>> +#define TRCA_READ_PTR_OFFSET 0x018
>> +#define TRCA_WRITE_PTR_OFFSET 0x020
>> +#define TRCA_DOORBELL_OFFSET 0x400
>> +
>> +#define EVCA_CTRLSTS_OFFSET 0x000
>> +#define EVCA_INTCTRL_OFFSET 0x004
>> +#define EVCA_RING_LOW_OFFSET 0x008
>> +#define EVCA_RING_HIGH_OFFSET 0x00C
>> +#define EVCA_RING_LEN_OFFSET 0x010
>> +#define EVCA_READ_PTR_OFFSET 0x018
>> +#define EVCA_WRITE_PTR_OFFSET 0x020
>> +#define EVCA_DOORBELL_OFFSET 0x400
>> +
>> +#define EVCA_IRQ_STAT_OFFSET 0x100
>> +#define EVCA_IRQ_CLR_OFFSET 0x108
>> +#define EVCA_IRQ_EN_OFFSET 0x110
>> +
>> +#define EVRE_CFG_IDX 0
>> +#define EVRE_LEN_IDX 1
>> +#define EVRE_DEST_LOW_IDX 2
>> +#define EVRE_DEST_HI_IDX 3
>> +
>> +#define EVRE_ERRINFO_BIT_POS 24
>> +#define EVRE_CODE_BIT_POS 28
>> +
>> +#define EVRE_ERRINFO_MASK GENMASK(3, 0)
>> +#define EVRE_CODE_MASK GENMASK(3, 0)
>
> These are rest here are not namespace properly...
If I understood it right, you want me to prefix them with as HIDMA_xyz.
Correct?
>
>> +static int hidma_ll_enable(struct hidma_lldev *lldev)
>> +{
>> + u32 val;
>> + int ret;
>> +
>> + val = readl(lldev->evca + EVCA_CTRLSTS_OFFSET);
>> + val &= ~(CH_CONTROL_MASK << 16);
>> + val |= CH_ENABLE << 16;
>> + writel(val, lldev->evca + EVCA_CTRLSTS_OFFSET);
>> +
>> + ret = readl_poll_timeout(lldev->evca + EVCA_CTRLSTS_OFFSET, val,
>> + (HIDMA_CH_STATE(val) == CH_ENABLED) ||
>> + (HIDMA_CH_STATE(val) == CH_RUNNING), 1000,
>> + 10000);
>> + if (ret) {
>> + dev_err(lldev->dev, "event channel did not get enabled\n");
>> + return ret;
>> + }
>> +
>> + val = readl(lldev->trca + TRCA_CTRLSTS_OFFSET);
>> + val &= ~(CH_CONTROL_MASK << 16);
>> + val |= CH_ENABLE << 16;
>> + writel(val, lldev->trca + TRCA_CTRLSTS_OFFSET);
>> +
>> + ret = readl_poll_timeout(lldev->trca + TRCA_CTRLSTS_OFFSET, val,
>> + (HIDMA_CH_STATE(val) == CH_ENABLED) ||
>> + (HIDMA_CH_STATE(val) == CH_RUNNING), 1000,
>> + 10000);
>
> first arg for readl_poll_timeout is accessor fn to do read, which doesnt
> seem to be here... so what did i miss?
>
>
>> +void hidma_ll_queue_request(struct hidma_lldev *lldev, u32 tre_ch)
>> +{
>> + struct hidma_tre *tre;
>> + unsigned long flags;
>> +
>> + tre = &lldev->trepool[tre_ch];
>> +
>> + /* copy the TRE into its location in the TRE ring */
>> + spin_lock_irqsave(&lldev->lock, flags);
>> + tre->tre_index = lldev->tre_write_offset / TRE_SIZE;
>> + lldev->pending_tre_list[tre->tre_index] = tre;
>> + memcpy(lldev->tre_ring + lldev->tre_write_offset, &tre->tre_local[0],
>> + TRE_SIZE);
>> + lldev->tx_status_list[tre->idx].err_code = 0;
>> + lldev->tx_status_list[tre->idx].err_info = 0;
>> + tre->queued = 1;
>> + lldev->pending_tre_count++;
Is this the only one without alignment? I couldn't understand what you mean by
above one?
>> + lldev->tre_write_offset = (lldev->tre_write_offset + TRE_SIZE)
>> + % lldev->tre_ring_size;
>
> These and above one should be right justfied per coding style
>
--
Sinan Kaya
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
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