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-rw-r--r--drivers/crypto/inside-secure/safexcel.c229
-rw-r--r--drivers/crypto/inside-secure/safexcel.h21
2 files changed, 200 insertions, 50 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
index acf26dfa7e94..b456b85f46d3 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -28,63 +28,205 @@ static u32 max_rings = EIP197_MAX_RINGS;
module_param(max_rings, uint, 0644);
MODULE_PARM_DESC(max_rings, "Maximum number of rings to use.");
-static void eip197_trc_cache_init(struct safexcel_crypto_priv *priv)
+static void eip197_trc_cache_setupvirt(struct safexcel_crypto_priv *priv)
{
- u32 val, htable_offset;
- int i, cs_rc_max, cs_ht_wc, cs_trc_rec_wc, cs_trc_lg_rec_wc;
-
- if (priv->version == EIP197D_MRVL) {
- cs_rc_max = EIP197D_CS_RC_MAX;
- cs_ht_wc = EIP197D_CS_HT_WC;
- cs_trc_rec_wc = EIP197D_CS_TRC_REC_WC;
- cs_trc_lg_rec_wc = EIP197D_CS_TRC_LG_REC_WC;
- } else {
- /* Default to minimum "safe" settings */
- cs_rc_max = EIP197B_CS_RC_MAX;
- cs_ht_wc = EIP197B_CS_HT_WC;
- cs_trc_rec_wc = EIP197B_CS_TRC_REC_WC;
- cs_trc_lg_rec_wc = EIP197B_CS_TRC_LG_REC_WC;
+ int i;
+
+ /*
+ * Map all interfaces/rings to register index 0
+ * so they can share contexts. Without this, the EIP197 will
+ * assume each interface/ring to be in its own memory domain
+ * i.e. have its own subset of UNIQUE memory addresses.
+ * Which would cause records with the SAME memory address to
+ * use DIFFERENT cache buffers, causing both poor cache utilization
+ * AND serious coherence/invalidation issues.
+ */
+ for (i = 0; i < 4; i++)
+ writel(0, priv->base + EIP197_FLUE_IFC_LUT(i));
+
+ /*
+ * Initialize other virtualization regs for cache
+ * These may not be in their reset state ...
+ */
+ for (i = 0; i < priv->config.rings; i++) {
+ writel(0, priv->base + EIP197_FLUE_CACHEBASE_LO(i));
+ writel(0, priv->base + EIP197_FLUE_CACHEBASE_HI(i));
+ writel(EIP197_FLUE_CONFIG_MAGIC,
+ priv->base + EIP197_FLUE_CONFIG(i));
}
+ writel(0, priv->base + EIP197_FLUE_OFFSETS);
+ writel(0, priv->base + EIP197_FLUE_ARC4_OFFSET);
+}
- /* Enable the record cache memory access */
- val = readl(priv->base + EIP197_CS_RAM_CTRL);
- val &= ~EIP197_TRC_ENABLE_MASK;
- val |= EIP197_TRC_ENABLE_0;
- writel(val, priv->base + EIP197_CS_RAM_CTRL);
+static void eip197_trc_cache_banksel(struct safexcel_crypto_priv *priv,
+ u32 addrmid, int *actbank)
+{
+ u32 val;
+ int curbank;
+
+ curbank = addrmid >> 16;
+ if (curbank != *actbank) {
+ val = readl(priv->base + EIP197_CS_RAM_CTRL);
+ val = (val & ~EIP197_CS_BANKSEL_MASK) |
+ (curbank << EIP197_CS_BANKSEL_OFS);
+ writel(val, priv->base + EIP197_CS_RAM_CTRL);
+ *actbank = curbank;
+ }
+}
- /* Clear all ECC errors */
- writel(0, priv->base + EIP197_TRC_ECCCTRL);
+static u32 eip197_trc_cache_probe(struct safexcel_crypto_priv *priv,
+ int maxbanks, u32 probemask)
+{
+ u32 val, addrhi, addrlo, addrmid;
+ int actbank;
/*
- * Make sure the cache memory is accessible by taking record cache into
- * reset.
+ * And probe the actual size of the physically attached cache data RAM
+ * Using a binary subdivision algorithm downto 32 byte cache lines.
*/
- val = readl(priv->base + EIP197_TRC_PARAMS);
- val |= EIP197_TRC_PARAMS_SW_RESET;
- val &= ~EIP197_TRC_PARAMS_DATA_ACCESS;
- writel(val, priv->base + EIP197_TRC_PARAMS);
+ addrhi = 1 << (16 + maxbanks);
+ addrlo = 0;
+ actbank = min(maxbanks - 1, 0);
+ while ((addrhi - addrlo) > 32) {
+ /* write marker to lowest address in top half */
+ addrmid = (addrhi + addrlo) >> 1;
+ eip197_trc_cache_banksel(priv, addrmid, &actbank);
+ writel((addrmid | (addrlo << 16)) & probemask,
+ priv->base + EIP197_CLASSIFICATION_RAMS +
+ (addrmid & 0xffff));
+
+ /* write marker to lowest address in bottom half */
+ eip197_trc_cache_banksel(priv, addrlo, &actbank);
+ writel((addrlo | (addrhi << 16)) & probemask,
+ priv->base + EIP197_CLASSIFICATION_RAMS +
+ (addrlo & 0xffff));
+
+ /* read back marker from top half */
+ eip197_trc_cache_banksel(priv, addrmid, &actbank);
+ val = readl(priv->base + EIP197_CLASSIFICATION_RAMS +
+ (addrmid & 0xffff));
+
+ if (val == ((addrmid | (addrlo << 16)) & probemask)) {
+ /* read back correct, continue with top half */
+ addrlo = addrmid;
+ } else {
+ /* not read back correct, continue with bottom half */
+ addrhi = addrmid;
+ }
+ }
+ return addrhi;
+}
+
+static void eip197_trc_cache_clear(struct safexcel_crypto_priv *priv,
+ int cs_rc_max, int cs_ht_wc)
+{
+ int i;
+ u32 htable_offset, val, offset;
- /* Clear all records */
+ /* Clear all records in administration RAM */
for (i = 0; i < cs_rc_max; i++) {
- u32 val, offset = EIP197_CLASSIFICATION_RAMS + i * EIP197_CS_RC_SIZE;
+ offset = EIP197_CLASSIFICATION_RAMS + i * EIP197_CS_RC_SIZE;
writel(EIP197_CS_RC_NEXT(EIP197_RC_NULL) |
EIP197_CS_RC_PREV(EIP197_RC_NULL),
priv->base + offset);
- val = EIP197_CS_RC_NEXT(i+1) | EIP197_CS_RC_PREV(i-1);
+ val = EIP197_CS_RC_NEXT(i + 1) | EIP197_CS_RC_PREV(i - 1);
if (i == 0)
val |= EIP197_CS_RC_PREV(EIP197_RC_NULL);
else if (i == cs_rc_max - 1)
val |= EIP197_CS_RC_NEXT(EIP197_RC_NULL);
- writel(val, priv->base + offset + sizeof(u32));
+ writel(val, priv->base + offset + 4);
+ /* must also initialize the address key due to ECC! */
+ writel(0, priv->base + offset + 8);
+ writel(0, priv->base + offset + 12);
}
/* Clear the hash table entries */
htable_offset = cs_rc_max * EIP197_CS_RC_SIZE;
for (i = 0; i < cs_ht_wc; i++)
writel(GENMASK(29, 0),
- priv->base + EIP197_CLASSIFICATION_RAMS + htable_offset + i * sizeof(u32));
+ priv->base + EIP197_CLASSIFICATION_RAMS +
+ htable_offset + i * sizeof(u32));
+}
+
+static void eip197_trc_cache_init(struct safexcel_crypto_priv *priv)
+{
+ u32 val, dsize, asize;
+ int cs_rc_max, cs_ht_wc, cs_trc_rec_wc, cs_trc_lg_rec_wc;
+ int cs_rc_abs_max, cs_ht_sz;
+ int maxbanks;
+
+ /* Setup (dummy) virtualization for cache */
+ eip197_trc_cache_setupvirt(priv);
+
+ /*
+ * Enable the record cache memory access and
+ * probe the bank select width
+ */
+ val = readl(priv->base + EIP197_CS_RAM_CTRL);
+ val &= ~EIP197_TRC_ENABLE_MASK;
+ val |= EIP197_TRC_ENABLE_0 | EIP197_CS_BANKSEL_MASK;
+ writel(val, priv->base + EIP197_CS_RAM_CTRL);
+ val = readl(priv->base + EIP197_CS_RAM_CTRL);
+ maxbanks = ((val&EIP197_CS_BANKSEL_MASK)>>EIP197_CS_BANKSEL_OFS) + 1;
+
+ /* Clear all ECC errors */
+ writel(0, priv->base + EIP197_TRC_ECCCTRL);
+
+ /*
+ * Make sure the cache memory is accessible by taking record cache into
+ * reset. Need data memory access here, not admin access.
+ */
+ val = readl(priv->base + EIP197_TRC_PARAMS);
+ val |= EIP197_TRC_PARAMS_SW_RESET | EIP197_TRC_PARAMS_DATA_ACCESS;
+ writel(val, priv->base + EIP197_TRC_PARAMS);
+
+ /* Probed data RAM size in bytes */
+ dsize = eip197_trc_cache_probe(priv, maxbanks, 0xffffffff);
+
+ /*
+ * Now probe the administration RAM size pretty much the same way
+ * Except that only the lower 30 bits are writable and we don't need
+ * bank selects
+ */
+ val = readl(priv->base + EIP197_TRC_PARAMS);
+ /* admin access now */
+ val &= ~(EIP197_TRC_PARAMS_DATA_ACCESS | EIP197_CS_BANKSEL_MASK);
+ writel(val, priv->base + EIP197_TRC_PARAMS);
+
+ /* Probed admin RAM size in admin words */
+ asize = eip197_trc_cache_probe(priv, 0, 0xbfffffff) >> 4;
+
+ /* Clear any ECC errors detected while probing! */
+ writel(0, priv->base + EIP197_TRC_ECCCTRL);
+
+ /*
+ * Determine optimal configuration from RAM sizes
+ * Note that we assume that the physical RAM configuration is sane
+ * Therefore, we don't do any parameter error checking here ...
+ */
+
+ /* For now, just use a single record format covering everything */
+ cs_trc_rec_wc = EIP197_CS_TRC_REC_WC;
+ cs_trc_lg_rec_wc = EIP197_CS_TRC_REC_WC;
+
+ /*
+ * Step #1: How many records will physically fit?
+ * Hard upper limit is 1023!
+ */
+ cs_rc_abs_max = min_t(uint, ((dsize >> 2) / cs_trc_lg_rec_wc), 1023);
+ /* Step #2: Need at least 2 words in the admin RAM per record */
+ cs_rc_max = min_t(uint, cs_rc_abs_max, (asize >> 1));
+ /* Step #3: Determine log2 of hash table size */
+ cs_ht_sz = __fls(asize - cs_rc_max) - 2;
+ /* Step #4: determine current size of hash table in dwords */
+ cs_ht_wc = 16<<cs_ht_sz; /* dwords, not admin words */
+ /* Step #5: add back excess words and see if we can fit more records */
+ cs_rc_max = min_t(uint, cs_rc_abs_max, asize - (cs_ht_wc >> 4));
+
+ /* Clear the cache RAMs */
+ eip197_trc_cache_clear(priv, cs_rc_max, cs_ht_wc);
/* Disable the record cache memory access */
val = readl(priv->base + EIP197_CS_RAM_CTRL);
@@ -104,8 +246,11 @@ static void eip197_trc_cache_init(struct safexcel_crypto_priv *priv)
/* Configure the record cache #2 */
val = EIP197_TRC_PARAMS_RC_SZ_LARGE(cs_trc_lg_rec_wc) |
EIP197_TRC_PARAMS_BLK_TIMER_SPEED(1) |
- EIP197_TRC_PARAMS_HTABLE_SZ(2);
+ EIP197_TRC_PARAMS_HTABLE_SZ(cs_ht_sz);
writel(val, priv->base + EIP197_TRC_PARAMS);
+
+ dev_info(priv->dev, "TRC init: %dd,%da (%dr,%dh)\n",
+ dsize, asize, cs_rc_max, cs_ht_wc + cs_ht_wc);
}
static void eip197_init_firmware(struct safexcel_crypto_priv *priv)
@@ -129,7 +274,7 @@ static void eip197_init_firmware(struct safexcel_crypto_priv *priv)
/* clear the scratchpad RAM using 32 bit writes only */
for (i = 0; i < EIP197_NUM_OF_SCRATCH_BLOCKS; i++)
writel(0, EIP197_PE(priv) +
- EIP197_PE_ICE_SCRATCH_RAM(pe) + (i<<2));
+ EIP197_PE_ICE_SCRATCH_RAM(pe) + (i << 2));
/* Reset the IFPP engine to make its program mem accessible */
writel(EIP197_PE_ICE_x_CTRL_SW_RESET |
@@ -309,7 +454,7 @@ release_fw:
static int safexcel_hw_setup_cdesc_rings(struct safexcel_crypto_priv *priv)
{
- u32 hdw, cd_size_rnd, val;
+ u32 cd_size_rnd, val;
int i, cd_fetch_cnt;
cd_size_rnd = (priv->config.cd_size +
@@ -337,7 +482,8 @@ static int safexcel_hw_setup_cdesc_rings(struct safexcel_crypto_priv *priv)
writel(EIP197_xDR_DESC_MODE_64BIT | (priv->config.cd_offset << 16) |
priv->config.cd_size,
EIP197_HIA_CDR(priv, i) + EIP197_HIA_xDR_DESC_SIZE);
- writel(((cd_fetch_cnt * (cd_size_rnd << hdw)) << 16) |
+ writel(((cd_fetch_cnt *
+ (cd_size_rnd << priv->hwconfig.hwdataw)) << 16) |
(cd_fetch_cnt * priv->config.cd_offset),
EIP197_HIA_CDR(priv, i) + EIP197_HIA_xDR_CFG);
@@ -356,12 +502,12 @@ static int safexcel_hw_setup_cdesc_rings(struct safexcel_crypto_priv *priv)
static int safexcel_hw_setup_rdesc_rings(struct safexcel_crypto_priv *priv)
{
- u32 hdw, rd_size_rnd, val;
+ u32 rd_size_rnd, val;
int i, rd_fetch_cnt;
/* determine number of RD's we can fetch into the FIFO as one block */
rd_size_rnd = (EIP197_RD64_FETCH_SIZE +
- BIT(priv->hwconfig.hwdataw) - 1) >>
+ (BIT(priv->hwconfig.hwdataw) - 1)) >>
priv->hwconfig.hwdataw;
if (priv->flags & SAFEXCEL_HW_EIP197) {
/* EIP197: try to fetch enough in 1 go to keep all pipes busy */
@@ -371,7 +517,7 @@ static int safexcel_hw_setup_rdesc_rings(struct safexcel_crypto_priv *priv)
} else {
/* for the EIP97, just fetch all that fits minus 1 */
rd_fetch_cnt = ((1 << priv->hwconfig.hwrfsize) /
- rd_size_rnd) - 1;
+ rd_size_rnd) - 1;
}
for (i = 0; i < priv->config.rings; i++) {
@@ -385,7 +531,8 @@ static int safexcel_hw_setup_rdesc_rings(struct safexcel_crypto_priv *priv)
priv->config.rd_size,
EIP197_HIA_RDR(priv, i) + EIP197_HIA_xDR_DESC_SIZE);
- writel(((rd_fetch_cnt * (rd_size_rnd << hdw)) << 16) |
+ writel(((rd_fetch_cnt *
+ (rd_size_rnd << priv->hwconfig.hwdataw)) << 16) |
(rd_fetch_cnt * priv->config.rd_offset),
EIP197_HIA_RDR(priv, i) + EIP197_HIA_xDR_CFG);
diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h
index 7d740b31c056..930cc48a6f85 100644
--- a/drivers/crypto/inside-secure/safexcel.h
+++ b/drivers/crypto/inside-secure/safexcel.h
@@ -178,6 +178,12 @@
#define EIP197_TRC_ECCADMINSTAT 0xf0838
#define EIP197_TRC_ECCDATASTAT 0xf083c
#define EIP197_TRC_ECCDATA 0xf0840
+#define EIP197_FLUE_CACHEBASE_LO(n) (0xf6000 + (32 * (n)))
+#define EIP197_FLUE_CACHEBASE_HI(n) (0xf6004 + (32 * (n)))
+#define EIP197_FLUE_CONFIG(n) (0xf6010 + (32 * (n)))
+#define EIP197_FLUE_OFFSETS 0xf6808
+#define EIP197_FLUE_ARC4_OFFSET 0xf680c
+#define EIP197_FLUE_IFC_LUT(n) (0xf6820 + (4 * (n)))
#define EIP197_CS_RAM_CTRL 0xf7ff0
/* EIP197_HIA_xDR_DESC_SIZE */
@@ -321,6 +327,9 @@
#define EIP197_ADDRESS_MODE BIT(8)
#define EIP197_CONTROL_MODE BIT(9)
+/* EIP197_FLUE_CONFIG */
+#define EIP197_FLUE_CONFIG_MAGIC 0xc7000004
+
/* Context Control */
struct safexcel_context_record {
u32 control0;
@@ -395,6 +404,8 @@ struct safexcel_context_record {
#define EIP197_TRC_ENABLE_1 BIT(5)
#define EIP197_TRC_ENABLE_2 BIT(6)
#define EIP197_TRC_ENABLE_MASK GENMASK(6, 4)
+#define EIP197_CS_BANKSEL_MASK GENMASK(14, 12)
+#define EIP197_CS_BANKSEL_OFS 12
/* EIP197_TRC_PARAMS */
#define EIP197_TRC_PARAMS_SW_RESET BIT(0)
@@ -412,19 +423,11 @@ struct safexcel_context_record {
#define EIP197_TRC_PARAMS2_RC_SZ_SMALL(n) ((n) << 18)
/* Cache helpers */
-#define EIP197B_CS_RC_MAX 52
-#define EIP197D_CS_RC_MAX 96
+#define EIP197_CS_TRC_REC_WC 64
#define EIP197_CS_RC_SIZE (4 * sizeof(u32))
#define EIP197_CS_RC_NEXT(x) (x)
#define EIP197_CS_RC_PREV(x) ((x) << 10)
#define EIP197_RC_NULL 0x3ff
-#define EIP197B_CS_TRC_REC_WC 59
-#define EIP197D_CS_TRC_REC_WC 64
-#define EIP197B_CS_TRC_LG_REC_WC 73
-#define EIP197D_CS_TRC_LG_REC_WC 80
-#define EIP197B_CS_HT_WC 64
-#define EIP197D_CS_HT_WC 256
-
/* Result data */
struct result_data_desc {
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-29 15:33:42 +0000