Merge tag 'v6.18-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "Drivers:
   - Add ciphertext hiding support to ccp
   - Add hashjoin, gather and UDMA data move features to hisilicon
   - Add lz4 and lz77_only to hisilicon
   - Add xilinx hwrng driver
   - Add ti driver with ecb/cbc aes support
   - Add ring buffer idle and command queue telemetry for GEN6 in qat

  Others:
   - Use rcu_dereference_all to stop false alarms in rhashtable
   - Fix CPU number wraparound in padata"

* tag 'v6.18-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (78 commits)
  dt-bindings: rng: hisi-rng: convert to DT schema
  crypto: doc - Add explicit title heading to API docs
  hwrng: ks-sa - fix division by zero in ks_sa_rng_init
  KEYS: X.509: Fix Basic Constraints CA flag parsing
  crypto: anubis - simplify return statement in anubis_mod_init
  crypto: hisilicon/qm - set NULL to qm->debug.qm_diff_regs
  crypto: hisilicon/qm - clear all VF configurations in the hardware
  crypto: hisilicon - enable error reporting again
  crypto: hisilicon/qm - mask axi error before memory init
  crypto: hisilicon/qm - invalidate queues in use
  crypto: qat - Return pointer directly in adf_ctl_alloc_resources
  crypto: aspeed - Fix dma_unmap_sg() direction
  rhashtable: Use rcu_dereference_all and rcu_dereference_all_check
  crypto: comp - Use same definition of context alloc and free ops
  crypto: omap - convert from tasklet to BH workqueue
  crypto: qat - Replace kzalloc() + copy_from_user() with memdup_user()
  crypto: caam - double the entropy delay interval for retry
  padata: WQ_PERCPU added to alloc_workqueue users
  padata: replace use of system_unbound_wq with system_dfl_wq
  crypto: cryptd - WQ_PERCPU added to alloc_workqueue users
  ...

1 files changed, 217 insertions, 0 deletions

diff --git a/drivers/crypto/ti/dthev2-common.c b/drivers/crypto/ti/dthev2-common.c
new file mode 100644
index 000000000000..c39d37933b9e
--- /dev/null
+++ b/drivers/crypto/ti/dthev2-common.c
@@ -0,0 +1,217 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * K3 DTHE V2 crypto accelerator driver
+ *
+ * Copyright (C) Texas Instruments 2025 - https://www.ti.com
+ * Author: T Pratham <t-pratham@ti.com>
+ */
+
+#include <crypto/aes.h>
+#include <crypto/algapi.h>
+#include <crypto/engine.h>
+#include <crypto/internal/aead.h>
+#include <crypto/internal/skcipher.h>
+
+#include "dthev2-common.h"
+
+#include <linux/delay.h>
+#include <linux/dmaengine.h>
+#include <linux/dmapool.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/platform_device.h>
+#include <linux/scatterlist.h>
+
+#define DRIVER_NAME	"dthev2"
+
+static struct dthe_list dthe_dev_list = {
+	.dev_list = LIST_HEAD_INIT(dthe_dev_list.dev_list),
+	.lock = __SPIN_LOCK_UNLOCKED(dthe_dev_list.lock),
+};
+
+struct dthe_data *dthe_get_dev(struct dthe_tfm_ctx *ctx)
+{
+	struct dthe_data *dev_data;
+
+	if (ctx->dev_data)
+		return ctx->dev_data;
+
+	spin_lock_bh(&dthe_dev_list.lock);
+	dev_data = list_first_entry(&dthe_dev_list.dev_list, struct dthe_data, list);
+	if (dev_data)
+		list_move_tail(&dev_data->list, &dthe_dev_list.dev_list);
+	spin_unlock_bh(&dthe_dev_list.lock);
+
+	return dev_data;
+}
+
+static int dthe_dma_init(struct dthe_data *dev_data)
+{
+	int ret;
+	struct dma_slave_config cfg;
+
+	dev_data->dma_aes_rx = NULL;
+	dev_data->dma_aes_tx = NULL;
+	dev_data->dma_sha_tx = NULL;
+
+	dev_data->dma_aes_rx = dma_request_chan(dev_data->dev, "rx");
+	if (IS_ERR(dev_data->dma_aes_rx)) {
+		return dev_err_probe(dev_data->dev, PTR_ERR(dev_data->dma_aes_rx),
+				     "Unable to request rx DMA channel\n");
+	}
+
+	dev_data->dma_aes_tx = dma_request_chan(dev_data->dev, "tx1");
+	if (IS_ERR(dev_data->dma_aes_tx)) {
+		ret = dev_err_probe(dev_data->dev, PTR_ERR(dev_data->dma_aes_tx),
+				    "Unable to request tx1 DMA channel\n");
+		goto err_dma_aes_tx;
+	}
+
+	dev_data->dma_sha_tx = dma_request_chan(dev_data->dev, "tx2");
+	if (IS_ERR(dev_data->dma_sha_tx)) {
+		ret = dev_err_probe(dev_data->dev, PTR_ERR(dev_data->dma_sha_tx),
+				    "Unable to request tx2 DMA channel\n");
+		goto err_dma_sha_tx;
+	}
+
+	memzero_explicit(&cfg, sizeof(cfg));
+
+	cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+	cfg.src_maxburst = 4;
+
+	ret = dmaengine_slave_config(dev_data->dma_aes_rx, &cfg);
+	if (ret) {
+		dev_err(dev_data->dev, "Can't configure IN dmaengine slave: %d\n", ret);
+		goto err_dma_config;
+	}
+
+	cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+	cfg.dst_maxburst = 4;
+
+	ret = dmaengine_slave_config(dev_data->dma_aes_tx, &cfg);
+	if (ret) {
+		dev_err(dev_data->dev, "Can't configure OUT dmaengine slave: %d\n", ret);
+		goto err_dma_config;
+	}
+
+	return 0;
+
+err_dma_config:
+	dma_release_channel(dev_data->dma_sha_tx);
+err_dma_sha_tx:
+	dma_release_channel(dev_data->dma_aes_tx);
+err_dma_aes_tx:
+	dma_release_channel(dev_data->dma_aes_rx);
+
+	return ret;
+}
+
+static int dthe_register_algs(void)
+{
+	return dthe_register_aes_algs();
+}
+
+static void dthe_unregister_algs(void)
+{
+	dthe_unregister_aes_algs();
+}
+
+static int dthe_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct dthe_data *dev_data;
+	int ret;
+
+	dev_data = devm_kzalloc(dev, sizeof(*dev_data), GFP_KERNEL);
+	if (!dev_data)
+		return -ENOMEM;
+
+	dev_data->dev = dev;
+	dev_data->regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(dev_data->regs))
+		return PTR_ERR(dev_data->regs);
+
+	platform_set_drvdata(pdev, dev_data);
+
+	spin_lock(&dthe_dev_list.lock);
+	list_add(&dev_data->list, &dthe_dev_list.dev_list);
+	spin_unlock(&dthe_dev_list.lock);
+
+	ret = dthe_dma_init(dev_data);
+	if (ret)
+		goto probe_dma_err;
+
+	dev_data->engine = crypto_engine_alloc_init(dev, 1);
+	if (!dev_data->engine) {
+		ret = -ENOMEM;
+		goto probe_engine_err;
+	}
+
+	ret = crypto_engine_start(dev_data->engine);
+	if (ret) {
+		dev_err(dev, "Failed to start crypto engine\n");
+		goto probe_engine_start_err;
+	}
+
+	ret = dthe_register_algs();
+	if (ret) {
+		dev_err(dev, "Failed to register algs\n");
+		goto probe_engine_start_err;
+	}
+
+	return 0;
+
+probe_engine_start_err:
+	crypto_engine_exit(dev_data->engine);
+probe_engine_err:
+	dma_release_channel(dev_data->dma_aes_rx);
+	dma_release_channel(dev_data->dma_aes_tx);
+	dma_release_channel(dev_data->dma_sha_tx);
+probe_dma_err:
+	spin_lock(&dthe_dev_list.lock);
+	list_del(&dev_data->list);
+	spin_unlock(&dthe_dev_list.lock);
+
+	return ret;
+}
+
+static void dthe_remove(struct platform_device *pdev)
+{
+	struct dthe_data *dev_data = platform_get_drvdata(pdev);
+
+	spin_lock(&dthe_dev_list.lock);
+	list_del(&dev_data->list);
+	spin_unlock(&dthe_dev_list.lock);
+
+	dthe_unregister_algs();
+
+	crypto_engine_exit(dev_data->engine);
+
+	dma_release_channel(dev_data->dma_aes_rx);
+	dma_release_channel(dev_data->dma_aes_tx);
+	dma_release_channel(dev_data->dma_sha_tx);
+}
+
+static const struct of_device_id dthe_of_match[] = {
+	{ .compatible = "ti,am62l-dthev2", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, dthe_of_match);
+
+static struct platform_driver dthe_driver = {
+	.probe	= dthe_probe,
+	.remove	= dthe_remove,
+	.driver = {
+		.name		= DRIVER_NAME,
+		.of_match_table	= dthe_of_match,
+	},
+};
+
+module_platform_driver(dthe_driver);
+
+MODULE_AUTHOR("T Pratham <t-pratham@ti.com>");
+MODULE_DESCRIPTION("Texas Instruments DTHE V2 driver");
+MODULE_LICENSE("GPL");