diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.c | 20 | ||||
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.h | 4 |
2 files changed, 20 insertions, 4 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 0bcf36c3810b..c40eb1befc51 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -1308,6 +1308,9 @@ static void safexcel_configure(struct safexcel_crypto_priv *priv) priv->config.pes = priv->hwconfig.hwnumpes; priv->config.rings = min_t(u32, priv->hwconfig.hwnumrings, max_rings); + /* Cannot currently support more rings than we have ring AICs! */ + priv->config.rings = min_t(u32, priv->config.rings, + priv->hwconfig.hwnumraic); priv->config.cd_size = EIP197_CD64_FETCH_SIZE; priv->config.cd_offset = (priv->config.cd_size + mask) & ~mask; @@ -1481,6 +1484,15 @@ static int safexcel_probe_generic(void *pdev, EIP197_N_RINGS_MASK; } + /* Scan for ring AIC's */ + for (i = 0; i < EIP197_MAX_RING_AIC; i++) { + version = readl(EIP197_HIA_AIC_R(priv) + + EIP197_HIA_AIC_R_VERSION(i)); + if (EIP197_REG_LO16(version) != EIP201_VERSION_LE) + break; + } + priv->hwconfig.hwnumraic = i; + /* Get supported algorithms from EIP96 transform engine */ priv->hwconfig.algo_flags = readl(EIP197_PE(priv) + EIP197_PE_EIP96_OPTIONS(0)); @@ -1488,10 +1500,10 @@ static int safexcel_probe_generic(void *pdev, /* Print single info line describing what we just detected */ dev_info(priv->dev, "EIP%d:%x(%d,%d,%d,%d)-HIA:%x(%d,%d,%d),PE:%x,alg:%08x\n", peid, priv->hwconfig.hwver, hwctg, priv->hwconfig.hwnumpes, - priv->hwconfig.hwnumrings, priv->hwconfig.hiaver, - priv->hwconfig.hwdataw, priv->hwconfig.hwcfsize, - priv->hwconfig.hwrfsize, priv->hwconfig.pever, - priv->hwconfig.algo_flags); + priv->hwconfig.hwnumrings, priv->hwconfig.hwnumraic, + priv->hwconfig.hiaver, priv->hwconfig.hwdataw, + priv->hwconfig.hwcfsize, priv->hwconfig.hwrfsize, + priv->hwconfig.pever, priv->hwconfig.algo_flags); safexcel_configure(priv); diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h index 2400814e8c14..227771363359 100644 --- a/drivers/crypto/inside-secure/safexcel.h +++ b/drivers/crypto/inside-secure/safexcel.h @@ -19,6 +19,7 @@ #define EIP97_VERSION_LE 0x9e61 #define EIP197_VERSION_LE 0x3ac5 #define EIP96_VERSION_LE 0x9f60 +#define EIP201_VERSION_LE 0x36c9 #define EIP197_REG_LO16(reg) (reg & 0xffff) #define EIP197_REG_HI16(reg) ((reg >> 16) & 0xffff) #define EIP197_VERSION_MASK(reg) ((reg >> 16) & 0xfff) @@ -32,6 +33,7 @@ #define EIP197_MAX_RINGS 4 #define EIP197_FETCH_DEPTH 2 #define EIP197_MAX_BATCH_SZ 64 +#define EIP197_MAX_RING_AIC 14 #define EIP197_GFP_FLAGS(base) ((base).flags & CRYPTO_TFM_REQ_MAY_SLEEP ? \ GFP_KERNEL : GFP_ATOMIC) @@ -138,6 +140,7 @@ #define EIP197_HIA_AIC_R_ENABLED_STAT(r) (0xe010 - EIP197_HIA_AIC_R_OFF(r)) #define EIP197_HIA_AIC_R_ACK(r) (0xe010 - EIP197_HIA_AIC_R_OFF(r)) #define EIP197_HIA_AIC_R_ENABLE_CLR(r) (0xe014 - EIP197_HIA_AIC_R_OFF(r)) +#define EIP197_HIA_AIC_R_VERSION(r) (0xe01c - EIP197_HIA_AIC_R_OFF(r)) #define EIP197_HIA_AIC_G_ENABLE_CTRL 0xf808 #define EIP197_HIA_AIC_G_ENABLED_STAT 0xf810 #define EIP197_HIA_AIC_G_ACK 0xf810 @@ -740,6 +743,7 @@ struct safexcel_hwconfig { int hwrfsize; int hwnumpes; int hwnumrings; + int hwnumraic; }; struct safexcel_crypto_priv { |