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

[JiaJie Ho]

> -----Original Message-----
> From: Herbert Xu <herbert at gondor.apana.org.au>
> Sent: 9 February, 2023 5:47 PM
> To: JiaJie Ho <jiajie.ho at starfivetech.com>
> Cc: David S . Miller <davem at davemloft.net>; Rob Herring
> <robh+dt at kernel.org>; Krzysztof Kozlowski
> <krzysztof.kozlowski+dt at linaro.org>; Emil Renner Berthing
> <kernel at esmil.dk>; Conor Dooley <conor.dooley at microchip.com>; linux-
> crypto at vger.kernel.org; devicetree at vger.kernel.org; linux-
> kernel at vger.kernel.org; linux-riscv at lists.infradead.org
> Subject: Re: [PATCH v2 4/4] crypto: starfive - Add hash and HMAC support
> 
> 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?

Only hmac done has IRQ, I'll add that in the next version.

Thanks
Jia Jie