Re: [Patch v5 2/4] memory: tegra: Add MC error logging on tegra186 onward

[Dmitry Osipenko]

16.03.2022 12:25, Ashish Mhetre пишет:
> +static int tegra186_mc_get_channel(const struct tegra_mc *mc, int *mc_channel)
> +{
> +	u32 status;
> +
> +	status = mc_ch_readl(mc, MC_BROADCAST_CHANNEL, MC_GLOBAL_INTSTATUS);

This mc_ch_readl(MC_GLOBAL_INTSTATUS) is replicated by every
tegraxxx_mc_get_channel(), it should be a part of common interrupt
handler, IMO.

And then I'd rename that callback to global_intstatus_to_channel().

> +	switch (status & mc->soc->int_channel_mask) {
> +	case BIT(0):
> +		*mc_channel = 0;
> +		break;
> +
> +	case BIT(1):
> +		*mc_channel = 1;
> +		break;
> +
> +	case BIT(2):
> +		*mc_channel = 2;
> +		break;
> +
> +	case BIT(3):
> +		*mc_channel = 3;
> +		break;
> +
> +	case BIT(24):
> +		*mc_channel = MC_BROADCAST_CHANNEL;
> +		break;
> +
> +	default:
> +		pr_err("Unknown interrupt source\n");

dev_err_ratelimited("unknown interrupt channel 0x%08x\n", status) and
should be moved to the common interrupt handler.