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...
> +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++;
> + 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
--
~Vinod
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