allwinner/sun4i-ss/sun4i-ss-cipher.c

3  * sun4i-ss-cipher.c - hardware cryptographic accelerator for Allwinner A20 SoC
13 #include "sun4i-ss.h"
19 	struct sun4i_ss_ctx *ss = op->ss;  in sun4i_ss_opti_poll()  local
23 	/* when activating SS, the default FIFO space is SS_RX_DEFAULT(32) */  in sun4i_ss_opti_poll()
45 		dev_err_ratelimited(ss->dev, "ERROR: Some SGs are NULL\n");  in sun4i_ss_opti_poll()
60 	spin_lock_irqsave(&ss->slock, flags);  in sun4i_ss_opti_poll()
63 		writesl(ss->base + SS_KEY0 + i * 4, &op->key[i], 1);  in sun4i_ss_opti_poll()
68 			writesl(ss->base + SS_IV0 + i * 4, &v, 1);  in sun4i_ss_opti_poll()
71 	writel(mode, ss->base + SS_CTL);  in sun4i_ss_opti_poll()
86 				dev_err_ratelimited(ss->dev, "ERROR: sg_miter return null\n");  in sun4i_ss_opti_poll()
94 				writesl(ss->base + SS_RXFIFO, mi.addr + oi, todo);  in sun4i_ss_opti_poll()
104 		spaces = readl(ss->base + SS_FCSR);  in sun4i_ss_opti_poll()
114 			dev_err_ratelimited(ss->dev, "ERROR: sg_miter return null\n");  in sun4i_ss_opti_poll()
122 			readsl(ss->base + SS_TXFIFO, mo.addr + oo, todo);  in sun4i_ss_opti_poll()
143 	writel(0, ss->base + SS_CTL);  in sun4i_ss_opti_poll()
144 	spin_unlock_irqrestore(&ss->slock, flags);  in sun4i_ss_opti_poll()
180 	struct sun4i_ss_ctx *ss = op->ss;  in sun4i_ss_cipher_poll()  local
189 	/* when activating SS, the default FIFO space is SS_RX_DEFAULT(32) */  in sun4i_ss_cipher_poll()
213 		dev_err_ratelimited(ss->dev, "ERROR: Some SGs are NULL\n");  in sun4i_ss_cipher_poll()
223 	 * we can use the SS optimized function  in sun4i_ss_cipher_poll()
252 	spin_lock_irqsave(&ss->slock, flags);  in sun4i_ss_cipher_poll()
255 		writesl(ss->base + SS_KEY0 + i * 4, &op->key[i], 1);  in sun4i_ss_cipher_poll()
260 			writesl(ss->base + SS_IV0 + i * 4, &v, 1);  in sun4i_ss_cipher_poll()
263 	writel(mode, ss->base + SS_CTL);  in sun4i_ss_cipher_poll()
278 				dev_err_ratelimited(ss->dev, "ERROR: sg_miter return null\n");  in sun4i_ss_cipher_poll()
289 				writesl(ss->base + SS_RXFIFO, mi.addr + oi,  in sun4i_ss_cipher_poll()
303 				memcpy(ss->buf + ob, mi.addr + oi, todo);  in sun4i_ss_cipher_poll()
308 					writesl(ss->base + SS_RXFIFO, ss->buf,  in sun4i_ss_cipher_poll()
320 		spaces = readl(ss->base + SS_FCSR);  in sun4i_ss_cipher_poll()
332 			dev_err_ratelimited(ss->dev, "ERROR: sg_miter return null\n");  in sun4i_ss_cipher_poll()
341 			readsl(ss->base + SS_TXFIFO, mo.addr + oo, todo);  in sun4i_ss_cipher_poll()
353 			readsl(ss->base + SS_TXFIFO, ss->bufo, tx_cnt);  in sun4i_ss_cipher_poll()
365 				memcpy(mo.addr + oo, ss->bufo + obo, todo);  in sun4i_ss_cipher_poll()
390 	writel(0, ss->base + SS_CTL);  in sun4i_ss_cipher_poll()
391 	spin_unlock_irqrestore(&ss->slock, flags);  in sun4i_ss_cipher_poll()
545 	op->ss = algt->ss;  in sun4i_ss_cipher_init()
549 		dev_err(op->ss->dev, "ERROR: Cannot allocate fallback for %s %ld\n",  in sun4i_ss_cipher_init()
558 	err = pm_runtime_resume_and_get(op->ss->dev);  in sun4i_ss_cipher_init()
573 	pm_runtime_put(op->ss->dev);  in sun4i_ss_cipher_exit()
581 	struct sun4i_ss_ctx *ss = op->ss;  in sun4i_ss_aes_setkey()  local
594 		dev_dbg(ss->dev, "ERROR: Invalid keylen %u\n", keylen);  in sun4i_ss_aes_setkey()