@@ -8,96 +8,18 @@
#include <linux/platform_device.h>
#include <linux/qcom_scm.h>
+#include <linux/qti-ice-common.h>
#include "ufshcd-crypto.h"
#include "ufs-qcom.h"
-#define AES_256_XTS_KEY_SIZE 64
-
-/* QCOM ICE registers */
-
-#define QCOM_ICE_REG_CONTROL 0x0000
-#define QCOM_ICE_REG_RESET 0x0004
-#define QCOM_ICE_REG_VERSION 0x0008
-#define QCOM_ICE_REG_FUSE_SETTING 0x0010
-#define QCOM_ICE_REG_PARAMETERS_1 0x0014
-#define QCOM_ICE_REG_PARAMETERS_2 0x0018
-#define QCOM_ICE_REG_PARAMETERS_3 0x001C
-#define QCOM_ICE_REG_PARAMETERS_4 0x0020
-#define QCOM_ICE_REG_PARAMETERS_5 0x0024
-
-/* QCOM ICE v3.X only */
-#define QCOM_ICE_GENERAL_ERR_STTS 0x0040
-#define QCOM_ICE_INVALID_CCFG_ERR_STTS 0x0030
-#define QCOM_ICE_GENERAL_ERR_MASK 0x0044
-
-/* QCOM ICE v2.X only */
-#define QCOM_ICE_REG_NON_SEC_IRQ_STTS 0x0040
-#define QCOM_ICE_REG_NON_SEC_IRQ_MASK 0x0044
-
-#define QCOM_ICE_REG_NON_SEC_IRQ_CLR 0x0048
-#define QCOM_ICE_REG_STREAM1_ERROR_SYNDROME1 0x0050
-#define QCOM_ICE_REG_STREAM1_ERROR_SYNDROME2 0x0054
-#define QCOM_ICE_REG_STREAM2_ERROR_SYNDROME1 0x0058
-#define QCOM_ICE_REG_STREAM2_ERROR_SYNDROME2 0x005C
-#define QCOM_ICE_REG_STREAM1_BIST_ERROR_VEC 0x0060
-#define QCOM_ICE_REG_STREAM2_BIST_ERROR_VEC 0x0064
-#define QCOM_ICE_REG_STREAM1_BIST_FINISH_VEC 0x0068
-#define QCOM_ICE_REG_STREAM2_BIST_FINISH_VEC 0x006C
-#define QCOM_ICE_REG_BIST_STATUS 0x0070
-#define QCOM_ICE_REG_BYPASS_STATUS 0x0074
-#define QCOM_ICE_REG_ADVANCED_CONTROL 0x1000
-#define QCOM_ICE_REG_ENDIAN_SWAP 0x1004
-#define QCOM_ICE_REG_TEST_BUS_CONTROL 0x1010
-#define QCOM_ICE_REG_TEST_BUS_REG 0x1014
-
-/* BIST ("built-in self-test"?) status flags */
-#define QCOM_ICE_BIST_STATUS_MASK 0xF0000000
-
-#define QCOM_ICE_FUSE_SETTING_MASK 0x1
-#define QCOM_ICE_FORCE_HW_KEY0_SETTING_MASK 0x2
-#define QCOM_ICE_FORCE_HW_KEY1_SETTING_MASK 0x4
-
-#define qcom_ice_writel(host, val, reg) \
- writel((val), (host)->ice_mmio + (reg))
-#define qcom_ice_readl(host, reg) \
- readl((host)->ice_mmio + (reg))
-
-static bool qcom_ice_supported(struct ufs_qcom_host *host)
-{
- struct device *dev = host->hba->dev;
- u32 regval = qcom_ice_readl(host, QCOM_ICE_REG_VERSION);
- int major = regval >> 24;
- int minor = (regval >> 16) & 0xFF;
- int step = regval & 0xFFFF;
-
- /* For now this driver only supports ICE version 3. */
- if (major != 3) {
- dev_warn(dev, "Unsupported ICE version: v%d.%d.%d\n",
- major, minor, step);
- return false;
- }
-
- dev_info(dev, "Found QC Inline Crypto Engine (ICE) v%d.%d.%d\n",
- major, minor, step);
-
- /* If fuses are blown, ICE might not work in the standard way. */
- regval = qcom_ice_readl(host, QCOM_ICE_REG_FUSE_SETTING);
- if (regval & (QCOM_ICE_FUSE_SETTING_MASK |
- QCOM_ICE_FORCE_HW_KEY0_SETTING_MASK |
- QCOM_ICE_FORCE_HW_KEY1_SETTING_MASK)) {
- dev_warn(dev, "Fuses are blown; ICE is unusable!\n");
- return false;
- }
- return true;
-}
-
int ufs_qcom_ice_init(struct ufs_qcom_host *host)
{
struct ufs_hba *hba = host->hba;
struct device *dev = hba->dev;
struct platform_device *pdev = to_platform_device(dev);
struct resource *res;
+ struct ice_mmio_data mmio;
int err;
if (!(ufshcd_readl(hba, REG_CONTROLLER_CAPABILITIES) &
@@ -121,8 +43,9 @@ int ufs_qcom_ice_init(struct ufs_qcom_host *host)
dev_err(dev, "Failed to map ICE registers; err=%d\n", err);
return err;
}
+ mmio.ice_mmio = host->ice_mmio;
- if (!qcom_ice_supported(host))
+ if (!qti_ice_init(&mmio))
goto disable;
return 0;
@@ -133,71 +56,31 @@ int ufs_qcom_ice_init(struct ufs_qcom_host *host)
return 0;
}
-static void qcom_ice_low_power_mode_enable(struct ufs_qcom_host *host)
-{
- u32 regval;
-
- regval = qcom_ice_readl(host, QCOM_ICE_REG_ADVANCED_CONTROL);
- /*
- * Enable low power mode sequence
- * [0]-0, [1]-0, [2]-0, [3]-E, [4]-0, [5]-0, [6]-0, [7]-0
- */
- regval |= 0x7000;
- qcom_ice_writel(host, regval, QCOM_ICE_REG_ADVANCED_CONTROL);
-}
-
-static void qcom_ice_optimization_enable(struct ufs_qcom_host *host)
+static void get_ice_mmio_data(struct ice_mmio_data *data,
+ const struct ufs_qcom_host *host)
{
- u32 regval;
-
- /* ICE Optimizations Enable Sequence */
- regval = qcom_ice_readl(host, QCOM_ICE_REG_ADVANCED_CONTROL);
- regval |= 0xD807100;
- /* ICE HPG requires delay before writing */
- udelay(5);
- qcom_ice_writel(host, regval, QCOM_ICE_REG_ADVANCED_CONTROL);
- udelay(5);
+ data->ice_mmio = host->ice_mmio;
}
int ufs_qcom_ice_enable(struct ufs_qcom_host *host)
{
+ struct ice_mmio_data mmio;
+
if (!(host->hba->caps & UFSHCD_CAP_CRYPTO))
return 0;
- qcom_ice_low_power_mode_enable(host);
- qcom_ice_optimization_enable(host);
- return ufs_qcom_ice_resume(host);
-}
-
-/* Poll until all BIST bits are reset */
-static int qcom_ice_wait_bist_status(struct ufs_qcom_host *host)
-{
- int count;
- u32 reg;
-
- for (count = 0; count < 100; count++) {
- reg = qcom_ice_readl(host, QCOM_ICE_REG_BIST_STATUS);
- if (!(reg & QCOM_ICE_BIST_STATUS_MASK))
- break;
- udelay(50);
- }
- if (reg)
- return -ETIMEDOUT;
- return 0;
+ get_ice_mmio_data(&mmio, host);
+ return qti_ice_enable(&mmio);
}
int ufs_qcom_ice_resume(struct ufs_qcom_host *host)
{
- int err;
+ struct ice_mmio_data mmio;
if (!(host->hba->caps & UFSHCD_CAP_CRYPTO))
return 0;
- err = qcom_ice_wait_bist_status(host);
- if (err) {
- dev_err(host->hba->dev, "BIST status error (%d)\n", err);
- return err;
- }
- return 0;
+ get_ice_mmio_data(&mmio, host);
+ return qti_ice_resume(&mmio);
}
/*
@@ -208,16 +91,13 @@ int ufs_qcom_ice_program_key(struct ufs_hba *hba,
const union ufs_crypto_cfg_entry *cfg, int slot)
{
union ufs_crypto_cap_entry cap;
- union {
- u8 bytes[AES_256_XTS_KEY_SIZE];
- u32 words[AES_256_XTS_KEY_SIZE / sizeof(u32)];
- } key;
- int i;
- int err;
+ struct ice_mmio_data mmio;
+ struct ufs_qcom_host *host = ufshcd_get_variant(hba);
if (!(cfg->config_enable & UFS_CRYPTO_CONFIGURATION_ENABLE))
- return qcom_scm_ice_invalidate_key(slot);
+ return qti_ice_keyslot_evict(slot);
+ get_ice_mmio_data(&mmio, host);
/* Only AES-256-XTS has been tested so far. */
cap = hba->crypto_cap_array[cfg->crypto_cap_idx];
if (cap.algorithm_id != UFS_CRYPTO_ALG_AES_XTS ||
@@ -228,18 +108,6 @@ int ufs_qcom_ice_program_key(struct ufs_hba *hba,
return -EINVAL;
}
- memcpy(key.bytes, cfg->crypto_key, AES_256_XTS_KEY_SIZE);
-
- /*
- * The SCM call byte-swaps the 32-bit words of the key. So we have to
- * do the same, in order for the final key be correct.
- */
- for (i = 0; i < ARRAY_SIZE(key.words); i++)
- __cpu_to_be32s(&key.words[i]);
-
- err = qcom_scm_ice_set_key(slot, key.bytes, AES_256_XTS_KEY_SIZE,
- QCOM_SCM_ICE_CIPHER_AES_256_XTS,
- cfg->data_unit_size);
- memzero_explicit(&key, sizeof(key));
- return err;
+ return qti_ice_keyslot_program(&mmio, cfg->crypto_key, AES_256_XTS_KEY_SIZE,
+ slot, cfg->data_unit_size, cfg->crypto_cap_idx);
}
@@ -209,4 +209,11 @@ config QCOM_APR
application processor and QDSP6. APR is
used by audio driver to configure QDSP6
ASM, ADM and AFE modules.
+
+config QTI_ICE_COMMON
+ tristate "QTI common ICE functionality"
+ depends on SCSI_UFS_CRYPTO && SCSI_UFS_QCOM
+ help
+ Enable the common ICE library that can be used
+ by UFS and EMMC drivers for ICE functionality.
endmenu
@@ -26,3 +26,4 @@ obj-$(CONFIG_QCOM_LLCC) += llcc-qcom.o
obj-$(CONFIG_QCOM_RPMHPD) += rpmhpd.o
obj-$(CONFIG_QCOM_RPMPD) += rpmpd.o
obj-$(CONFIG_QCOM_KRYO_L2_ACCESSORS) += kryo-l2-accessors.o
+obj-$(CONFIG_QTI_ICE_COMMON) += qti-ice-common.o
new file mode 100644
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Common ICE library for storage encryption.
+ *
+ * Copyright (c) 2021, Linux Foundation. All rights reserved.
+ */
+
+#include <linux/qti-ice-common.h>
+#include <linux/module.h>
+#include <linux/qcom_scm.h>
+#include <linux/delay.h>
+#include "qti-ice-regs.h"
+
+#define QTI_ICE_MAX_BIST_CHECK_COUNT 100
+
+static bool qti_ice_supported(const struct ice_mmio_data *mmio)
+{
+ u32 regval = qti_ice_readl(mmio->ice_mmio, QTI_ICE_REGS_VERSION);
+ int major = regval >> 24;
+ int minor = (regval >> 16) & 0xFF;
+ int step = regval & 0xFFFF;
+
+ /* For now this driver only supports ICE version 3 and higher. */
+ if (major < 3) {
+ pr_warn("Unsupported ICE version: v%d.%d.%d\n",
+ major, minor, step);
+ return false;
+ }
+
+ pr_info("Found QC Inline Crypto Engine (ICE) v%d.%d.%d\n",
+ major, minor, step);
+
+ /* If fuses are blown, ICE might not work in the standard way. */
+ regval = qti_ice_readl(mmio->ice_mmio, QTI_ICE_REGS_FUSE_SETTING);
+ if (regval & (QTI_ICE_FUSE_SETTING_MASK |
+ QTI_ICE_FORCE_HW_KEY0_SETTING_MASK |
+ QTI_ICE_FORCE_HW_KEY1_SETTING_MASK)) {
+ pr_warn("Fuses are blown; ICE is unusable!\n");
+ return false;
+ }
+ return true;
+}
+
+int qti_ice_init(const struct ice_mmio_data *mmio)
+{
+ return qti_ice_supported(mmio);
+}
+EXPORT_SYMBOL(qti_ice_init);
+
+static void qti_ice_low_power_and_optimization_enable(
+ const struct ice_mmio_data *mmio)
+{
+ u32 regval = qti_ice_readl(mmio, QTI_ICE_REGS_ADVANCED_CONTROL);
+
+ /* Enable low power mode sequence
+ * [0]-0,[1]-0,[2]-0,[3]-7,[4]-0,[5]-0,[6]-0,[7]-0,
+ * Enable CONFIG_CLK_GATING, STREAM2_CLK_GATING and STREAM1_CLK_GATING
+ */
+ regval |= 0x7000;
+ /* Optimization enable sequence*/
+ regval |= 0xD807100;
+ qti_ice_writel(mmio, regval, QTI_ICE_REGS_ADVANCED_CONTROL);
+ /* Memory barrier - to ensure write completion before next transaction */
+ wmb();
+}
+
+static int qti_ice_wait_bist_status(const struct ice_mmio_data *mmio)
+{
+ int count;
+ u32 regval;
+
+ for (count = 0; count < QTI_ICE_MAX_BIST_CHECK_COUNT; count++) {
+ regval = qti_ice_readl(mmio->ice_mmio, QTI_ICE_REGS_BIST_STATUS);
+ if (!(regval & QTI_ICE_BIST_STATUS_MASK))
+ break;
+ udelay(50);
+ }
+
+ if (regval) {
+ pr_err("%s: wait bist status failed, reg %d\n", __func__, regval);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+int qti_ice_enable(const struct ice_mmio_data *mmio)
+{
+ qti_ice_low_power_and_optimization_enable(mmio);
+ return qti_ice_wait_bist_status(mmio);
+}
+EXPORT_SYMBOL(qti_ice_enable);
+
+int qti_ice_resume(const struct ice_mmio_data *mmio)
+{
+ return qti_ice_wait_bist_status(mmio);
+}
+EXPORT_SYMBOL(qti_ice_resume);
+
+int qti_ice_keyslot_program(const struct ice_mmio_data *mmio,
+ const u8* crypto_key, unsigned int crypto_key_size,
+ unsigned int slot, u8 data_unit_mask, int capid)
+{
+ int err = 0;
+ int i = 0;
+ union {
+ u8 bytes[AES_256_XTS_KEY_SIZE];
+ u32 words[AES_256_XTS_KEY_SIZE / sizeof(u32)];
+ } key;
+
+ memcpy(key.bytes, crypto_key, crypto_key_size);
+ /*
+ * The SCM call byte-swaps the 32-bit words of the key. So we have to
+ * do the same, in order for the final key be correct.
+ */
+ for (i = 0; i < ARRAY_SIZE(key.words); i++)
+ __cpu_to_be32s(&key.words[i]);
+
+ err = qcom_scm_ice_set_key(slot, key.bytes, AES_256_XTS_KEY_SIZE,
+ capid, data_unit_mask);
+ if (err)
+ pr_err("%s:SCM call Error: 0x%x slot %d\n", __func__, err, slot);
+
+ memzero_explicit(&key, sizeof(key));
+ return err;
+}
+EXPORT_SYMBOL(qti_ice_keyslot_program);
+
+int qti_ice_keyslot_evict(unsigned int slot)
+{
+ return qcom_scm_ice_invalidate_key(slot);
+}
+EXPORT_SYMBOL(qti_ice_keyslot_evict);
+
+MODULE_LICENSE("GPL v2");
new file mode 100644
@@ -0,0 +1,145 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _QTI_INLINE_CRYPTO_ENGINE_REGS_H_
+#define _QTI_INLINE_CRYPTO_ENGINE_REGS_H_
+
+#include <linux/io.h>
+
+/* QTI ICE Registers from SWI */
+#define QTI_ICE_REGS_CONTROL 0x0000
+#define QTI_ICE_REGS_RESET 0x0004
+#define QTI_ICE_REGS_VERSION 0x0008
+#define QTI_ICE_REGS_FUSE_SETTING 0x0010
+#define QTI_ICE_REGS_PARAMETERS_1 0x0014
+#define QTI_ICE_REGS_PARAMETERS_2 0x0018
+#define QTI_ICE_REGS_PARAMETERS_3 0x001C
+#define QTI_ICE_REGS_PARAMETERS_4 0x0020
+#define QTI_ICE_REGS_PARAMETERS_5 0x0024
+
+/* Register bits for ICE version */
+#define QTI_ICE_CORE_STEP_REV_MASK 0xFFFF
+#define QTI_ICE_CORE_STEP_REV 0 /* bit 15-0 */
+#define QTI_ICE_CORE_MAJOR_REV_MASK 0xFF000000
+#define QTI_ICE_CORE_MAJOR_REV 24 /* bit 31-24 */
+#define QTI_ICE_CORE_MINOR_REV_MASK 0xFF0000
+#define QTI_ICE_CORE_MINOR_REV 16 /* bit 23-16 */
+
+#define QTI_ICE_BIST_STATUS_MASK (0xF0000000) /* bits 28-31 */
+
+#define QTI_ICE_FUSE_SETTING_MASK 0x1
+#define QTI_ICE_FORCE_HW_KEY0_SETTING_MASK 0x2
+#define QTI_ICE_FORCE_HW_KEY1_SETTING_MASK 0x4
+
+/* QTI ICE v3.X only */
+#define QTI_ICE_INVALID_CCFG_ERR_STTS 0x0030
+#define QTI_ICE_GENERAL_ERR_STTS 0x0040
+#define QTI_ICE_GENERAL_ERR_MASK 0x0044
+#define QTI_ICE_REGS_NON_SEC_IRQ_CLR 0x0048
+#define QTI_ICE_REGS_STREAM1_ERROR_SYNDROME1 0x0050
+#define QTI_ICE_REGS_STREAM1_ERROR_SYNDROME2 0x0054
+#define QTI_ICE_REGS_STREAM2_ERROR_SYNDROME1 0x0058
+#define QTI_ICE_REGS_STREAM2_ERROR_SYNDROME2 0x005C
+#define QTI_ICE_REGS_STREAM1_BIST_ERROR_VEC 0x0060
+#define QTI_ICE_REGS_STREAM2_BIST_ERROR_VEC 0x0064
+#define QTI_ICE_REGS_STREAM1_BIST_FINISH_VEC 0x0068
+#define QTI_ICE_REGS_STREAM2_BIST_FINISH_VEC 0x006C
+#define QTI_ICE_REGS_BIST_STATUS 0x0070
+#define QTI_ICE_REGS_BYPASS_STATUS 0x0074
+#define QTI_ICE_REGS_ADVANCED_CONTROL 0x1000
+#define QTI_ICE_REGS_ENDIAN_SWAP 0x1004
+#define QTI_ICE_REGS_TEST_BUS_CONTROL 0x1010
+#define QTI_ICE_REGS_TEST_BUS_REG 0x1014
+#define QTI_ICE_REGS_STREAM1_COUNTERS1 0x1100
+#define QTI_ICE_REGS_STREAM1_COUNTERS2 0x1104
+#define QTI_ICE_REGS_STREAM1_COUNTERS3 0x1108
+#define QTI_ICE_REGS_STREAM1_COUNTERS4 0x110C
+#define QTI_ICE_REGS_STREAM1_COUNTERS5_MSB 0x1110
+#define QTI_ICE_REGS_STREAM1_COUNTERS5_LSB 0x1114
+#define QTI_ICE_REGS_STREAM1_COUNTERS6_MSB 0x1118
+#define QTI_ICE_REGS_STREAM1_COUNTERS6_LSB 0x111C
+#define QTI_ICE_REGS_STREAM1_COUNTERS7_MSB 0x1120
+#define QTI_ICE_REGS_STREAM1_COUNTERS7_LSB 0x1124
+#define QTI_ICE_REGS_STREAM1_COUNTERS8_MSB 0x1128
+#define QTI_ICE_REGS_STREAM1_COUNTERS8_LSB 0x112C
+#define QTI_ICE_REGS_STREAM1_COUNTERS9_MSB 0x1130
+#define QTI_ICE_REGS_STREAM1_COUNTERS9_LSB 0x1134
+#define QTI_ICE_REGS_STREAM2_COUNTERS1 0x1200
+#define QTI_ICE_REGS_STREAM2_COUNTERS2 0x1204
+#define QTI_ICE_REGS_STREAM2_COUNTERS3 0x1208
+#define QTI_ICE_REGS_STREAM2_COUNTERS4 0x120C
+#define QTI_ICE_REGS_STREAM2_COUNTERS5_MSB 0x1210
+#define QTI_ICE_REGS_STREAM2_COUNTERS5_LSB 0x1214
+#define QTI_ICE_REGS_STREAM2_COUNTERS6_MSB 0x1218
+#define QTI_ICE_REGS_STREAM2_COUNTERS6_LSB 0x121C
+#define QTI_ICE_REGS_STREAM2_COUNTERS7_MSB 0x1220
+#define QTI_ICE_REGS_STREAM2_COUNTERS7_LSB 0x1224
+#define QTI_ICE_REGS_STREAM2_COUNTERS8_MSB 0x1228
+#define QTI_ICE_REGS_STREAM2_COUNTERS8_LSB 0x122C
+#define QTI_ICE_REGS_STREAM2_COUNTERS9_MSB 0x1230
+#define QTI_ICE_REGS_STREAM2_COUNTERS9_LSB 0x1234
+
+#define QTI_ICE_STREAM1_PREMATURE_LBA_CHANGE (1L << 0)
+#define QTI_ICE_STREAM2_PREMATURE_LBA_CHANGE (1L << 1)
+#define QTI_ICE_STREAM1_NOT_EXPECTED_LBO (1L << 2)
+#define QTI_ICE_STREAM2_NOT_EXPECTED_LBO (1L << 3)
+#define QTI_ICE_STREAM1_NOT_EXPECTED_DUN (1L << 4)
+#define QTI_ICE_STREAM2_NOT_EXPECTED_DUN (1L << 5)
+#define QTI_ICE_STREAM1_NOT_EXPECTED_DUS (1L << 6)
+#define QTI_ICE_STREAM2_NOT_EXPECTED_DUS (1L << 7)
+#define QTI_ICE_STREAM1_NOT_EXPECTED_DBO (1L << 8)
+#define QTI_ICE_STREAM2_NOT_EXPECTED_DBO (1L << 9)
+#define QTI_ICE_STREAM1_NOT_EXPECTED_ENC_SEL (1L << 10)
+#define QTI_ICE_STREAM2_NOT_EXPECTED_ENC_SEL (1L << 11)
+#define QTI_ICE_STREAM1_NOT_EXPECTED_CONF_IDX (1L << 12)
+#define QTI_ICE_STREAM2_NOT_EXPECTED_CONF_IDX (1L << 13)
+#define QTI_ICE_STREAM1_NOT_EXPECTED_NEW_TRNS (1L << 14)
+#define QTI_ICE_STREAM2_NOT_EXPECTED_NEW_TRNS (1L << 15)
+
+#define QTI_ICE_NON_SEC_IRQ_MASK \
+ (QTI_ICE_STREAM1_PREMATURE_LBA_CHANGE | \
+ QTI_ICE_STREAM2_PREMATURE_LBA_CHANGE | \
+ QTI_ICE_STREAM1_NOT_EXPECTED_LBO | \
+ QTI_ICE_STREAM2_NOT_EXPECTED_LBO | \
+ QTI_ICE_STREAM1_NOT_EXPECTED_DUN | \
+ QTI_ICE_STREAM2_NOT_EXPECTED_DUN | \
+ QTI_ICE_STREAM2_NOT_EXPECTED_DUS | \
+ QTI_ICE_STREAM1_NOT_EXPECTED_DBO | \
+ QTI_ICE_STREAM2_NOT_EXPECTED_DBO | \
+ QTI_ICE_STREAM1_NOT_EXPECTED_ENC_SEL | \
+ QTI_ICE_STREAM2_NOT_EXPECTED_ENC_SEL | \
+ QTI_ICE_STREAM1_NOT_EXPECTED_CONF_IDX |\
+ QTI_ICE_STREAM1_NOT_EXPECTED_NEW_TRNS |\
+ QTI_ICE_STREAM2_NOT_EXPECTED_NEW_TRNS)
+
+/* QTI ICE registers from secure side */
+#define QTI_ICE_TEST_BUS_REG_SECURE_INTR (1L << 28)
+#define QTI_ICE_TEST_BUS_REG_NON_SECURE_INTR (1L << 2)
+
+#define QTI_ICE_LUT_KEYS_CRYPTOCFG_R_16 0x4040
+#define QTI_ICE_LUT_KEYS_CRYPTOCFG_R_17 0x4044
+#define QTI_ICE_LUT_KEYS_CRYPTOCFG_OFFSET 0x80
+
+#define QTI_ICE_LUT_KEYS_QTI_ICE_SEC_IRQ_STTS 0x6200
+#define QTI_ICE_LUT_KEYS_QTI_ICE_SEC_IRQ_MASK 0x6204
+#define QTI_ICE_LUT_KEYS_QTI_ICE_SEC_IRQ_CLR 0x6208
+
+#define QTI_ICE_STREAM1_PARTIALLY_SET_KEY_USED (1L << 0)
+#define QTI_ICE_STREAM2_PARTIALLY_SET_KEY_USED (1L << 1)
+#define QTI_ICE_QTIC_DBG_OPEN_EVENT (1L << 30)
+#define QTI_ICE_KEYS_RAM_RESET_COMPLETED (1L << 31)
+
+#define QTI_ICE_SEC_IRQ_MASK \
+ (QTI_ICE_STREAM1_PARTIALLY_SET_KEY_USED |\
+ QTI_ICE_STREAM2_PARTIALLY_SET_KEY_USED |\
+ QTI_ICE_QTIC_DBG_OPEN_EVENT | \
+ QTI_ICE_KEYS_RAM_RESET_COMPLETED)
+
+#define qti_ice_writel(mmio, val, reg) \
+ writel_relaxed((val), mmio + (reg))
+#define qti_ice_readl(mmio, reg) \
+ readl_relaxed(mmio + (reg))
+
+#endif /* _QTI_INLINE_CRYPTO_ENGINE_REGS_H_ */
new file mode 100644
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2021, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _QTI_ICE_COMMON_H
+#define _QTI_ICE_COMMON_H
+
+#include <linux/types.h>
+#include <linux/device.h>
+
+#define AES_256_XTS_KEY_SIZE 64
+
+struct ice_mmio_data {
+ void __iomem *ice_mmio;
+};
+
+int qti_ice_init(const struct ice_mmio_data *mmio);
+int qti_ice_enable(const struct ice_mmio_data *mmio);
+int qti_ice_resume(const struct ice_mmio_data *mmio);
+int qti_ice_keyslot_program(const struct ice_mmio_data *mmio,
+ const u8* key, unsigned int key_size,
+ unsigned int slot, u8 data_unit_mask, int capid);
+int qti_ice_keyslot_evict(unsigned int slot);
+
+#endif /* _QTI_ICE_COMMON_H */
The Inline Crypto Engine functionality is not limited to ufs and it can be used by other storage controllers like emmc which have the HW capabilities. It would be better to move this functionality to a common location. Moreover, when wrapped key functionality is added, it would reduce the effort required to add it for all storage controllers. Signed-off-by: Gaurav Kashyap <quic_gaurkash@quicinc.com> --- drivers/scsi/ufs/ufs-qcom-ice.c | 172 ++++-------------------------- drivers/soc/qcom/Kconfig | 7 ++ drivers/soc/qcom/Makefile | 1 + drivers/soc/qcom/qti-ice-common.c | 135 +++++++++++++++++++++++ drivers/soc/qcom/qti-ice-regs.h | 145 +++++++++++++++++++++++++ include/linux/qti-ice-common.h | 26 +++++ 6 files changed, 334 insertions(+), 152 deletions(-) create mode 100644 drivers/soc/qcom/qti-ice-common.c create mode 100644 drivers/soc/qcom/qti-ice-regs.h create mode 100644 include/linux/qti-ice-common.h