> On Tue, Jan 16, 2024 at 05:01:34PM +0800, Jia Jie Ho wrote:
> > Add driver support for SM3 hash/HMAC for JH8100 SoC. JH8100 contains a
> > separate SM algo engine and new dedicated dma that supports 64-bit
> > address access.
> >
> > Signed-off-by: Jia Jie Ho <jiajie.ho@xxxxxxxxxxxxxxxx>
> > ---
> > drivers/crypto/starfive/Kconfig | 25 +-
> > drivers/crypto/starfive/Makefile | 3 +
> > drivers/crypto/starfive/jh7110-cryp.c | 48 ++-
> > drivers/crypto/starfive/jh7110-cryp.h | 59 +++
> > drivers/crypto/starfive/jh7110-hash.c | 20 +-
> > drivers/crypto/starfive/jh8100-sm3.c | 532
> ++++++++++++++++++++++++++
> > 6 files changed, 677 insertions(+), 10 deletions(-) create mode
> > 100644 drivers/crypto/starfive/jh8100-sm3.c
> >
> > diff --git a/drivers/crypto/starfive/Kconfig
> > b/drivers/crypto/starfive/Kconfig index 0fe389e9f932..e6bf02d0ed1f
> > 100644
> > --- a/drivers/crypto/starfive/Kconfig
> > +++ b/drivers/crypto/starfive/Kconfig
> > @@ -5,7 +5,7 @@
> > config CRYPTO_DEV_JH7110
> > tristate "StarFive JH7110 cryptographic engine driver"
> > depends on (SOC_STARFIVE && AMBA_PL08X) || COMPILE_TEST
> > - depends on HAS_DMA
> > + depends on HAS_DMA && !CRYPTO_DEV_JH8100
> > select CRYPTO_ENGINE
> > select CRYPTO_HMAC
> > select CRYPTO_SHA256
> > @@ -24,3 +24,26 @@ config CRYPTO_DEV_JH7110
> > skciphers, AEAD and hash functions.
> >
> > If you choose 'M' here, this module will be called jh7110-crypto.
> > +
> > +config CRYPTO_DEV_JH8100
> > + tristate "StarFive JH8100 cryptographic engine drivers"
> > + depends on (SOC_STARFIVE && DW_AXI_DMAC) || COMPILE_TEST
> > + depends on HAS_DMA
> > + select CRYPTO_ENGINE
> > + select CRYPTO_HMAC
> > + select CRYPTO_SHA256
> > + select CRYPTO_SHA512
> > + select CRYPTO_SM3_GENERIC
> > + select CRYPTO_RSA
> > + select CRYPTO_AES
> > + select CRYPTO_CCM
> > + select CRYPTO_GCM
> > + select CRYPTO_CBC
> > + select CRYPTO_ECB
> > + select CRYPTO_CTR
> > + help
> > + Support for StarFive JH8100 crypto hardware acceleration engine.
> > + This module provides additional support for SM2 signature
> verification,
> > + SM3 hash/hmac functions and SM4 skcipher.
> > +
> > + If you choose 'M' here, this module will be called jh8100-crypto.
> > diff --git a/drivers/crypto/starfive/Makefile
> > b/drivers/crypto/starfive/Makefile
> > index 8c137afe58ad..67717fca3f5d 100644
> > --- a/drivers/crypto/starfive/Makefile
> > +++ b/drivers/crypto/starfive/Makefile
> > @@ -2,3 +2,6 @@
> >
> > obj-$(CONFIG_CRYPTO_DEV_JH7110) += jh7110-crypto.o
> > jh7110-crypto-objs := jh7110-cryp.o jh7110-hash.o jh7110-rsa.o
> > jh7110-aes.o
> > +
> > +obj-$(CONFIG_CRYPTO_DEV_JH8100) += jh8100-crypto.o jh8100-crypto-
> objs
> > +:= jh7110-cryp.o jh7110-hash.o jh7110-rsa.o jh7110-aes.o jh8100-sm3.o
> > diff --git a/drivers/crypto/starfive/jh7110-cryp.c
> > b/drivers/crypto/starfive/jh7110-cryp.c
> > index fe33e87f25ab..fb7c19705fbf 100644
> > --- a/drivers/crypto/starfive/jh7110-cryp.c
> > +++ b/drivers/crypto/starfive/jh7110-cryp.c
> > @@ -106,6 +106,26 @@ static irqreturn_t starfive_cryp_irq(int irq, void
> *priv)
> > return IRQ_HANDLED;
> > }
> >
> > +#ifdef CONFIG_CRYPTO_DEV_JH8100
> > +static irqreturn_t starfive_cryp_irq1(int irq, void *priv) {
> > + u32 status;
> > + u32 mask;
> > + struct starfive_cryp_dev *cryp = (struct starfive_cryp_dev *)priv;
> > +
> > + mask = readl(cryp->base + STARFIVE_SM_IE_MASK_OFFSET);
> > + status = readl(cryp->base + STARFIVE_SM_IE_FLAG_OFFSET);
> > +
> > + if (status & STARFIVE_SM_IE_FLAG_SM3_DONE) {
> > + mask |= STARFIVE_SM_IE_MASK_SM3_DONE;
> > + writel(mask, cryp->base + STARFIVE_SM_IE_MASK_OFFSET);
> > + tasklet_schedule(&cryp->sm3_done);
> > + }
> > +
> > + return IRQ_HANDLED;
> > +}
> > +#endif
> > +
> > static int starfive_cryp_probe(struct platform_device *pdev) {
> > struct starfive_cryp_dev *cryp;
> > @@ -156,6 +176,16 @@ static int starfive_cryp_probe(struct
> platform_device *pdev)
> > return dev_err_probe(&pdev->dev, ret,
> > "Failed to register interrupt handler\n");
> >
> > +#ifdef CONFIG_CRYPTO_DEV_JH8100
> > + tasklet_init(&cryp->sm3_done, starfive_sm3_done_task, (unsigned
> > +long)cryp);
> > +
> > + irq = platform_get_irq(pdev, 1);
> > + if (irq < 0)
> > + return irq;
> > +
> > + ret = devm_request_irq(&pdev->dev, irq, starfive_cryp_irq1, 0,
> > + pdev->name, (void *)cryp);
> > +#endif
> > clk_prepare_enable(cryp->hclk);
> > clk_prepare_enable(cryp->ahb);
> > reset_control_deassert(cryp->rst);
> > @@ -191,8 +221,17 @@ static int starfive_cryp_probe(struct
> platform_device *pdev)
> > if (ret)
> > goto err_algs_rsa;
> >
> > +#ifdef CONFIG_CRYPTO_DEV_JH8100
> > + ret = starfive_sm3_register_algs();
> > + if (ret)
> > + goto err_algs_sm3;
> > +#endif
> > return 0;
> >
> > +#ifdef CONFIG_CRYPTO_DEV_JH8100
> > +err_algs_sm3:
> > + starfive_rsa_unregister_algs();
> > +#endif
> > err_algs_rsa:
> > starfive_hash_unregister_algs();
> > err_algs_hash:
> > @@ -213,7 +252,9 @@ static int starfive_cryp_probe(struct
> platform_device *pdev)
> > reset_control_assert(cryp->rst);
> >
> > tasklet_kill(&cryp->hash_done);
> > -
> > +#ifdef CONFIG_CRYPTO_DEV_JH8100
> > + tasklet_kill(&cryp->sm3_done);
> > +#endif
>
> Please use if instead if ifdef where possible:
>
> if (IS_ENABLED(CONFIG_CRYPTO_DEV_JH8100))
> tasklet_kill(&cryp->sm3_done);
>
Hi Herbert,
I am using ifdef so unused codes wouldn't be compiled into the driver for unsupported variant.
Is the compiled driver size a concern for such cases?
Thanks for review this.
Regards,
Jia Jie
