drivers/crypto/amlogic/amlogic-gxl-core.c

Source file repositories/reference/linux-study-clean/drivers/crypto/amlogic/amlogic-gxl-core.c

File Facts

System
Linux kernel
Corpus path
drivers/crypto/amlogic/amlogic-gxl-core.c
Extension
.c
Size
8079 bytes
Lines
335
Domain
Driver Families
Bucket
drivers/crypto
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (mc->irqs[flow] == irq) {
			p = readl(mc->base + ((0x04 + flow) << 2));
			if (p) {
				writel_relaxed(0xF, mc->base + ((0x4 + flow) << 2));
				mc->chanlist[flow].status = 1;
				complete(&mc->chanlist[flow].complete);
				return IRQ_HANDLED;
			}
			dev_err(mc->dev, "%s %d Got irq for flow %d but ctrl is empty\n", __func__, irq, flow);
		}
	}

	dev_err(mc->dev, "%s %d from unknown irq\n", __func__, irq);
	return IRQ_HANDLED;
}

static struct meson_alg_template mc_algs[] = {
{
	.type = CRYPTO_ALG_TYPE_SKCIPHER,
	.blockmode = MESON_OPMODE_CBC,
	.alg.skcipher.base = {
		.base = {
			.cra_name = "cbc(aes)",
			.cra_driver_name = "cbc-aes-gxl",
			.cra_priority = 400,
			.cra_blocksize = AES_BLOCK_SIZE,
			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
				CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
				CRYPTO_ALG_NEED_FALLBACK,
			.cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx),
			.cra_module = THIS_MODULE,
			.cra_alignmask = 0xf,
			.cra_init = meson_cipher_init,
			.cra_exit = meson_cipher_exit,
		},
		.min_keysize	= AES_MIN_KEY_SIZE,
		.max_keysize	= AES_MAX_KEY_SIZE,
		.ivsize		= AES_BLOCK_SIZE,
		.setkey		= meson_aes_setkey,
		.encrypt	= meson_skencrypt,
		.decrypt	= meson_skdecrypt,
	},
	.alg.skcipher.op = {
		.do_one_request = meson_handle_cipher_request,
	},
},
{
	.type = CRYPTO_ALG_TYPE_SKCIPHER,
	.blockmode = MESON_OPMODE_ECB,
	.alg.skcipher.base = {
		.base = {
			.cra_name = "ecb(aes)",
			.cra_driver_name = "ecb-aes-gxl",
			.cra_priority = 400,
			.cra_blocksize = AES_BLOCK_SIZE,
			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
				CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
				CRYPTO_ALG_NEED_FALLBACK,
			.cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx),
			.cra_module = THIS_MODULE,
			.cra_alignmask = 0xf,
			.cra_init = meson_cipher_init,
			.cra_exit = meson_cipher_exit,
		},
		.min_keysize	= AES_MIN_KEY_SIZE,
		.max_keysize	= AES_MAX_KEY_SIZE,
		.setkey		= meson_aes_setkey,
		.encrypt	= meson_skencrypt,
		.decrypt	= meson_skdecrypt,
	},
	.alg.skcipher.op = {
		.do_one_request = meson_handle_cipher_request,
	},
},
};

static int meson_debugfs_show(struct seq_file *seq, void *v)
{
	struct meson_dev *mc __maybe_unused = seq->private;
	int i;

	for (i = 0; i < MAXFLOW; i++)
		seq_printf(seq, "Channel %d: nreq %lu\n", i,
#ifdef CONFIG_CRYPTO_DEV_AMLOGIC_GXL_DEBUG
			   mc->chanlist[i].stat_req);
#else
			   0ul);
#endif

	for (i = 0; i < ARRAY_SIZE(mc_algs); i++) {

Annotation

Implementation Notes