Re: [PATCH v2 4/4] crypto: starfive - Add hash and HMAC support

[Herbert Xu]

On Mon, Jan 30, 2023 at 11:42:42PM +0800, Jia Jie Ho wrote:
>
> +static inline int starfive_hash_wait_hmac_done(struct starfive_cryp_ctx *ctx)
> +{
> +	struct starfive_cryp_dev *cryp = ctx->cryp;
> +	u32 status;
> +
> +	return readl_relaxed_poll_timeout(cryp->base + STARFIVE_HASH_SHACSR, status,
> +					  (status & STARFIVE_HASH_HMAC_DONE), 10, 100000);
> +}
> +
> +static inline int starfive_hash_wait_busy(struct starfive_cryp_ctx *ctx)
> +{
> +	struct starfive_cryp_dev *cryp = ctx->cryp;
> +	u32 status;
> +
> +	return readl_relaxed_poll_timeout(cryp->base + STARFIVE_HASH_SHACSR, status,
> +					  !(status & STARFIVE_HASH_BUSY), 10, 100000);
> +}
> +
> +static inline int starfive_hash_wait_key_done(struct starfive_cryp_ctx *ctx)
> +{
> +	struct starfive_cryp_dev *cryp = ctx->cryp;
> +	u32 status;
> +
> +	return readl_relaxed_poll_timeout(cryp->base + STARFIVE_HASH_SHACSR, status,
> +					  (status & STARFIVE_HASH_KEY_DONE), 10, 100000);
> +}

Is there no IRQ mechanism for this?

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt