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crypto: inside-secure - Add support for the EIP196

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This patch adds support for the EIP196, which is an EIP197 derivative
that has no classification hardware and a simplified record cache.

The patch has been tested with the eip196b-ie and eip197c-iewxkbc
configurations on the Xilinx VCU118 development board as well as on the
Macchiatobin board (Marvell A8K - EIP197b-ieswx), including the crypto
extra tests.

Note that this patchset applies on top of the earlier submitted
"Add support for eip197f_iewc" series.

Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Pascal van Leeuwen 2019-09-18 12:41:26 +02:00 • committed by Herbert Xu
parent 9e5de3e06e
commit 5fd39c4d96
3 changed files with 86 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

69
drivers/crypto/inside-secure/safexcel.c
View file

@ -484,6 +484,14 @@ static int safexcel_hw_setup_cdesc_rings(struct safexcel_crypto_priv *priv)
cd_fetch_cnt = ((1 << priv->hwconfig.hwcfsize) /
cd_size_rnd) - 1;
}
/*
* Since we're using command desc's way larger than formally specified,
* we need to check whether we can fit even 1 for low-end EIP196's!
*/
if (!cd_fetch_cnt) {
dev_err(priv->dev, "Unable to fit even 1 command desc!\n");
return -ENODEV;
}
for (i = 0; i < priv->config.rings; i++) {
/* ring base address */
@ -608,8 +616,8 @@ static int safexcel_hw_init(struct safexcel_crypto_priv *priv)
writel(EIP197_DxE_THR_CTRL_RESET_PE,
EIP197_HIA_DFE_THR(priv) + EIP197_HIA_DFE_THR_CTRL(pe));
if (priv->flags & SAFEXCEL_HW_EIP197)
/* Reset HIA input interface arbiter (EIP197 only) */
if (priv->flags & EIP197_PE_ARB)
/* Reset HIA input interface arbiter (if present) */
writel(EIP197_HIA_RA_PE_CTRL_RESET,
EIP197_HIA_AIC(priv) + EIP197_HIA_RA_PE_CTRL(pe));
@ -756,22 +764,28 @@ static int safexcel_hw_init(struct safexcel_crypto_priv *priv)
/* Clear any HIA interrupt */
writel(GENMASK(30, 20), EIP197_HIA_AIC_G(priv) + EIP197_HIA_AIC_G_ACK);
if (priv->flags & SAFEXCEL_HW_EIP197) {
if (priv->flags & EIP197_SIMPLE_TRC) {
writel(EIP197_STRC_CONFIG_INIT |
EIP197_STRC_CONFIG_LARGE_REC(EIP197_CS_TRC_REC_WC) |
EIP197_STRC_CONFIG_SMALL_REC(EIP197_CS_TRC_REC_WC),
priv->base + EIP197_STRC_CONFIG);
writel(EIP197_PE_EIP96_TOKEN_CTRL2_CTX_DONE,
EIP197_PE(priv) + EIP197_PE_EIP96_TOKEN_CTRL2(0));
} else if (priv->flags & SAFEXCEL_HW_EIP197) {
ret = eip197_trc_cache_init(priv);
if (ret)
return ret;
}
priv->flags |= EIP197_TRC_CACHE;
if (priv->flags & EIP197_ICE) {
ret = eip197_load_firmwares(priv);
if (ret)
return ret;
}
safexcel_hw_setup_cdesc_rings(priv);
safexcel_hw_setup_rdesc_rings(priv);
return 0;
return safexcel_hw_setup_cdesc_rings(priv) ?:
safexcel_hw_setup_rdesc_rings(priv) ?:
0;
}
/* Called with ring's lock taken */
@ -1371,7 +1385,7 @@ static int safexcel_probe_generic(void *pdev,
int is_pci_dev)
{
struct device *dev = priv->dev;
u32 peid, version, mask, val, hiaopt;
u32 peid, version, mask, val, hiaopt, hwopt, peopt;
int i, ret, hwctg;
priv->context_pool = dmam_pool_create("safexcel-context", dev,
@ -1433,13 +1447,16 @@ static int safexcel_probe_generic(void *pdev,
*/
version = readl(EIP197_GLOBAL(priv) + EIP197_VERSION);
if (((priv->flags & SAFEXCEL_HW_EIP197) &&
(EIP197_REG_LO16(version) != EIP197_VERSION_LE)) ||
(EIP197_REG_LO16(version) != EIP197_VERSION_LE) &&
(EIP197_REG_LO16(version) != EIP196_VERSION_LE)) ||
((!(priv->flags & SAFEXCEL_HW_EIP197) &&
(EIP197_REG_LO16(version) != EIP97_VERSION_LE)))) {
/*
* We did not find the device that matched our initial probing
* (or our initial probing failed) Report appropriate error.
*/
dev_err(priv->dev, "Probing for EIP97/EIP19x failed - no such device (read %08x)\n",
version);
return -ENODEV;
}
@ -1447,6 +1464,14 @@ static int safexcel_probe_generic(void *pdev,
hwctg = version >> 28;
peid = version & 255;
/* Detect EIP206 processing pipe */
version = readl(EIP197_PE(priv) + + EIP197_PE_VERSION(0));
if (EIP197_REG_LO16(version) != EIP206_VERSION_LE) {
dev_err(priv->dev, "EIP%d: EIP206 not detected\n", peid);
return -ENODEV;
}
priv->hwconfig.ppver = EIP197_VERSION_MASK(version);
/* Detect EIP96 packet engine and version */
version = readl(EIP197_PE(priv) + EIP197_PE_EIP96_VERSION(0));
if (EIP197_REG_LO16(version) != EIP96_VERSION_LE) {
@ -1455,10 +1480,13 @@ static int safexcel_probe_generic(void *pdev,
}
priv->hwconfig.pever = EIP197_VERSION_MASK(version);
hwopt = readl(EIP197_GLOBAL(priv) + EIP197_OPTIONS);
hiaopt = readl(EIP197_HIA_AIC(priv) + EIP197_HIA_OPTIONS);
if (priv->flags & SAFEXCEL_HW_EIP197) {
/* EIP197 */
peopt = readl(EIP197_PE(priv) + EIP197_PE_OPTIONS(0));
priv->hwconfig.hwdataw = (hiaopt >> EIP197_HWDATAW_OFFSET) &
EIP197_HWDATAW_MASK;
priv->hwconfig.hwcfsize = ((hiaopt >> EIP197_CFSIZE_OFFSET) &
@ -1471,6 +1499,15 @@ static int safexcel_probe_generic(void *pdev,
EIP197_N_PES_MASK;
priv->hwconfig.hwnumrings = (hiaopt >> EIP197_N_RINGS_OFFSET) &
EIP197_N_RINGS_MASK;
if (hiaopt & EIP197_HIA_OPT_HAS_PE_ARB)
priv->flags |= EIP197_PE_ARB;
if (EIP206_OPT_ICE_TYPE(peopt) == 1)
priv->flags |= EIP197_ICE;
/* If not a full TRC, then assume simple TRC */
if (!(hwopt & EIP197_OPT_HAS_TRC))
priv->flags |= EIP197_SIMPLE_TRC;
/* EIP197 always has SOME form of TRC */
priv->flags |= EIP197_TRC_CACHE;
} else {
/* EIP97 */
priv->hwconfig.hwdataw = (hiaopt >> EIP197_HWDATAW_OFFSET) &
@ -1492,18 +1529,24 @@ static int safexcel_probe_generic(void *pdev,
break;
}
priv->hwconfig.hwnumraic = i;
/* Low-end EIP196 may not have any ring AIC's ... */
if (!priv->hwconfig.hwnumraic) {
dev_err(priv->dev, "No ring interrupt controller present!\n");
return -ENODEV;
}
/* Get supported algorithms from EIP96 transform engine */
priv->hwconfig.algo_flags = readl(EIP197_PE(priv) +
EIP197_PE_EIP96_OPTIONS(0));
/* 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",
dev_info(priv->dev, "EIP%d:%x(%d,%d,%d,%d)-HIA:%x(%d,%d,%d),PE:%x/%x,alg:%08x\n",
peid, priv->hwconfig.hwver, hwctg, priv->hwconfig.hwnumpes,
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);
priv->hwconfig.ppver, priv->hwconfig.pever,
priv->hwconfig.algo_flags);
safexcel_configure(priv);