36 /* rng per-device context */
38 	struct hwrng rng;  member
78 	print_hex_dump_debug("rng job desc@: ", DUMP_PREFIX_ADDRESS,  in caam_init_desc()
147 static int caam_read(struct hwrng *rng, void *dst, size_t max, bool wait)  in caam_read()  argument
149 	struct caam_rng_ctx *ctx = to_caam_rng_ctx(rng);  in caam_read()
166 static void caam_cleanup(struct hwrng *rng)  in caam_cleanup()  argument
168 	struct caam_rng_ctx *ctx = to_caam_rng_ctx(rng);  in caam_cleanup()
176 static inline void test_len(struct hwrng *rng, size_t len, bool wait)  in test_len()  argument
180 	struct caam_rng_ctx *ctx = to_caam_rng_ctx(rng);  in test_len()
186 		read_len = rng->read(rng, buf, len, wait);  in test_len()
189 			dev_err(dev, "RNG Read FAILED received %d bytes\n",  in test_len()
205 static inline void test_mode_once(struct hwrng *rng, bool wait)  in test_mode_once()  argument
207 	test_len(rng, 32, wait);  in test_mode_once()
208 	test_len(rng, 64, wait);  in test_mode_once()
209 	test_len(rng, 128, wait);  in test_mode_once()
212 static void self_test(struct hwrng *rng)  in self_test()  argument
214 	pr_info("Executing RNG SELF-TEST with wait\n");  in self_test()
215 	test_mode_once(rng, true);  in self_test()
219 static int caam_init(struct hwrng *rng)  in caam_init()  argument
221 	struct caam_rng_ctx *ctx = to_caam_rng_ctx(rng);  in caam_init()
272 	/* Check for an instantiated RNG before registration */  in caam_rng_init()
277 		rng_inst = rd_reg32(&priv->jr[0]->vreg.rng) & CHA_VER_NUM_MASK;  in caam_rng_init()
291 	ctx->rng.name    = "rng-caam";  in caam_rng_init()
292 	ctx->rng.init    = caam_init;  in caam_rng_init()
293 	ctx->rng.cleanup = caam_cleanup;  in caam_rng_init()
294 	ctx->rng.read    = caam_read;  in caam_rng_init()
295 	ctx->rng.priv    = (unsigned long)ctx;  in caam_rng_init()
297 	dev_info(ctrldev, "registering rng-caam\n");  in caam_rng_init()
299 	ret = devm_hwrng_register(ctrldev, &ctx->rng);  in caam_rng_init()
306 	self_test(&ctx->rng);  in caam_rng_init()