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;
45 		dev_err_ratelimited(ss->dev, "ERROR: Some SGs are NULL\n");
60 	spin_lock_irqsave(&ss->slock, flags);
63 		writesl(ss->base + SS_KEY0 + i * 4, &op->key[i], 1);
68 			writesl(ss->base + SS_IV0 + i * 4, &v, 1);
71 	writel(mode, ss->base + SS_CTL);
86 				dev_err_ratelimited(ss->dev, "ERROR: sg_miter return null\n");
94 				writesl(ss->base + SS_RXFIFO, mi.addr + oi, todo);
104 		spaces = readl(ss->base + SS_FCSR);
114 			dev_err_ratelimited(ss->dev, "ERROR: sg_miter return null\n");
122 			readsl(ss->base + SS_TXFIFO, mo.addr + oo, todo);
143 	writel(0, ss->base + SS_CTL);
144 	spin_unlock_irqrestore(&ss->slock, flags);
180 	struct sun4i_ss_ctx *ss = op->ss;
213 		dev_err_ratelimited(ss->dev, "ERROR: Some SGs are NULL\n");
252 	spin_lock_irqsave(&ss->slock, flags);
255 		writesl(ss->base + SS_KEY0 + i * 4, &op->key[i], 1);
260 			writesl(ss->base + SS_IV0 + i * 4, &v, 1);
263 	writel(mode, ss->base + SS_CTL);
278 				dev_err_ratelimited(ss->dev, "ERROR: sg_miter return null\n");
289 				writesl(ss->base + SS_RXFIFO, mi.addr + oi,
303 				memcpy(ss->buf + ob, mi.addr + oi, todo);
308 					writesl(ss->base + SS_RXFIFO, ss->buf,
320 		spaces = readl(ss->base + SS_FCSR);
332 			dev_err_ratelimited(ss->dev, "ERROR: sg_miter return null\n");
341 			readsl(ss->base + SS_TXFIFO, mo.addr + oo, todo);
353 			readsl(ss->base + SS_TXFIFO, ss->bufo, tx_cnt);
365 				memcpy(mo.addr + oo, ss->bufo + obo, todo);
390 	writel(0, ss->base + SS_CTL);
391 	spin_unlock_irqrestore(&ss->slock, flags);
545 	op->ss = algt->ss;
549 		dev_err(op->ss->dev, "ERROR: Cannot allocate fallback for %s %ld\n",
558 	err = pm_runtime_resume_and_get(op->ss->dev);
573 	pm_runtime_put(op->ss->dev);
581 	struct sun4i_ss_ctx *ss = op->ss;
594 		dev_dbg(ss->dev, "ERROR: Invalid keylen %u\n", keylen);