diff options
Diffstat (limited to 'drivers/crypto/talitos.c')
| -rw-r--r-- | drivers/crypto/talitos.c | 227 |
1 files changed, 172 insertions, 55 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 6d77699a821b..12654056ca53 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -124,12 +124,23 @@ static int reset_channel(struct device *dev, int ch) { struct talitos_private *priv = dev_get_drvdata(dev); unsigned int timeout = TALITOS_TIMEOUT; + bool is_sec1 = has_ftr_sec1(priv); - setbits32(priv->chan[ch].reg + TALITOS_CCCR, TALITOS_CCCR_RESET); + if (is_sec1) { + setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, + TALITOS1_CCCR_LO_RESET); - while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) & TALITOS_CCCR_RESET) - && --timeout) - cpu_relax(); + while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR_LO) & + TALITOS1_CCCR_LO_RESET) && --timeout) + cpu_relax(); + } else { + setbits32(priv->chan[ch].reg + TALITOS_CCCR, + TALITOS2_CCCR_RESET); + + while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) & + TALITOS2_CCCR_RESET) && --timeout) + cpu_relax(); + } if (timeout == 0) { dev_err(dev, "failed to reset channel %d\n", ch); @@ -152,11 +163,12 @@ static int reset_device(struct device *dev) { struct talitos_private *priv = dev_get_drvdata(dev); unsigned int timeout = TALITOS_TIMEOUT; - u32 mcr = TALITOS_MCR_SWR; + bool is_sec1 = has_ftr_sec1(priv); + u32 mcr = is_sec1 ? TALITOS1_MCR_SWR : TALITOS2_MCR_SWR; setbits32(priv->reg + TALITOS_MCR, mcr); - while ((in_be32(priv->reg + TALITOS_MCR) & TALITOS_MCR_SWR) + while ((in_be32(priv->reg + TALITOS_MCR) & mcr) && --timeout) cpu_relax(); @@ -180,6 +192,7 @@ static int init_device(struct device *dev) { struct talitos_private *priv = dev_get_drvdata(dev); int ch, err; + bool is_sec1 = has_ftr_sec1(priv); /* * Master reset @@ -203,8 +216,15 @@ static int init_device(struct device *dev) } /* enable channel done and error interrupts */ - setbits32(priv->reg + TALITOS_IMR, TALITOS_IMR_INIT); - setbits32(priv->reg + TALITOS_IMR_LO, TALITOS_IMR_LO_INIT); + if (is_sec1) { + clrbits32(priv->reg + TALITOS_IMR, TALITOS1_IMR_INIT); + clrbits32(priv->reg + TALITOS_IMR_LO, TALITOS1_IMR_LO_INIT); + /* disable parity error check in DEU (erroneous? test vect.) */ + setbits32(priv->reg_deu + TALITOS_EUICR, TALITOS1_DEUICR_KPE); + } else { + setbits32(priv->reg + TALITOS_IMR, TALITOS2_IMR_INIT); + setbits32(priv->reg + TALITOS_IMR_LO, TALITOS2_IMR_LO_INIT); + } /* disable integrity check error interrupts (use writeback instead) */ if (priv->features & TALITOS_FTR_HW_AUTH_CHECK) @@ -349,8 +369,37 @@ static void flush_channel(struct device *dev, int ch, int error, int reset_ch) /* * process completed requests for channels that have done status */ -#define DEF_TALITOS_DONE(name, ch_done_mask) \ -static void talitos_done_##name(unsigned long data) \ +#define DEF_TALITOS1_DONE(name, ch_done_mask) \ +static void talitos1_done_##name(unsigned long data) \ +{ \ + struct device *dev = (struct device *)data; \ + struct talitos_private *priv = dev_get_drvdata(dev); \ + unsigned long flags; \ + \ + if (ch_done_mask & 0x10000000) \ + flush_channel(dev, 0, 0, 0); \ + if (priv->num_channels == 1) \ + goto out; \ + if (ch_done_mask & 0x40000000) \ + flush_channel(dev, 1, 0, 0); \ + if (ch_done_mask & 0x00010000) \ + flush_channel(dev, 2, 0, 0); \ + if (ch_done_mask & 0x00040000) \ + flush_channel(dev, 3, 0, 0); \ + \ +out: \ + /* At this point, all completed channels have been processed */ \ + /* Unmask done interrupts for channels completed later on. */ \ + spin_lock_irqsave(&priv->reg_lock, flags); \ + clrbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ + clrbits32(priv->reg + TALITOS_IMR_LO, TALITOS1_IMR_LO_INIT); \ + spin_unlock_irqrestore(&priv->reg_lock, flags); \ +} + +DEF_TALITOS1_DONE(4ch, TALITOS1_ISR_4CHDONE) + +#define DEF_TALITOS2_DONE(name, ch_done_mask) \ +static void talitos2_done_##name(unsigned long data) \ { \ struct device *dev = (struct device *)data; \ struct talitos_private *priv = dev_get_drvdata(dev); \ @@ -372,12 +421,13 @@ out: \ /* Unmask done interrupts for channels completed later on. */ \ spin_lock_irqsave(&priv->reg_lock, flags); \ setbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ - setbits32(priv->reg + TALITOS_IMR_LO, TALITOS_IMR_LO_INIT); \ + setbits32(priv->reg + TALITOS_IMR_LO, TALITOS2_IMR_LO_INIT); \ spin_unlock_irqrestore(&priv->reg_lock, flags); \ } -DEF_TALITOS_DONE(4ch, TALITOS_ISR_4CHDONE) -DEF_TALITOS_DONE(ch0_2, TALITOS_ISR_CH_0_2_DONE) -DEF_TALITOS_DONE(ch1_3, TALITOS_ISR_CH_1_3_DONE) + +DEF_TALITOS2_DONE(4ch, TALITOS2_ISR_4CHDONE) +DEF_TALITOS2_DONE(ch0_2, TALITOS2_ISR_CH_0_2_DONE) +DEF_TALITOS2_DONE(ch1_3, TALITOS2_ISR_CH_1_3_DONE) /* * locate current (offending) descriptor @@ -492,13 +542,21 @@ static void talitos_error(struct device *dev, u32 isr, u32 isr_lo) { struct talitos_private *priv = dev_get_drvdata(dev); unsigned int timeout = TALITOS_TIMEOUT; - int ch, error, reset_dev = 0, reset_ch = 0; + int ch, error, reset_dev = 0; u32 v, v_lo; + bool is_sec1 = has_ftr_sec1(priv); + int reset_ch = is_sec1 ? 1 : 0; /* only SEC2 supports continuation */ for (ch = 0; ch < priv->num_channels; ch++) { /* skip channels without errors */ - if (!(isr & (1 << (ch * 2 + 1)))) - continue; + if (is_sec1) { + /* bits 29, 31, 17, 19 */ + if (!(isr & (1 << (29 + (ch & 1) * 2 - (ch & 2) * 6)))) + continue; + } else { + if (!(isr & (1 << (ch * 2 + 1)))) + continue; + } error = -EINVAL; @@ -518,23 +576,28 @@ static void talitos_error(struct device *dev, u32 isr, u32 isr_lo) if (v_lo & TALITOS_CCPSR_LO_MDTE) dev_err(dev, "master data transfer error\n"); if (v_lo & TALITOS_CCPSR_LO_SGDLZ) - dev_err(dev, "s/g data length zero error\n"); + dev_err(dev, is_sec1 ? "pointeur not complete error\n" + : "s/g data length zero error\n"); if (v_lo & TALITOS_CCPSR_LO_FPZ) - dev_err(dev, "fetch pointer zero error\n"); + dev_err(dev, is_sec1 ? "parity error\n" + : "fetch pointer zero error\n"); if (v_lo & TALITOS_CCPSR_LO_IDH) dev_err(dev, "illegal descriptor header error\n"); if (v_lo & TALITOS_CCPSR_LO_IEU) - dev_err(dev, "invalid execution unit error\n"); + dev_err(dev, is_sec1 ? "static assignment error\n" + : "invalid exec unit error\n"); if (v_lo & TALITOS_CCPSR_LO_EU) report_eu_error(dev, ch, current_desc_hdr(dev, ch)); - if (v_lo & TALITOS_CCPSR_LO_GB) - dev_err(dev, "gather boundary error\n"); - if (v_lo & TALITOS_CCPSR_LO_GRL) - dev_err(dev, "gather return/length error\n"); - if (v_lo & TALITOS_CCPSR_LO_SB) - dev_err(dev, "scatter boundary error\n"); - if (v_lo & TALITOS_CCPSR_LO_SRL) - dev_err(dev, "scatter return/length error\n"); + if (!is_sec1) { + if (v_lo & TALITOS_CCPSR_LO_GB) + dev_err(dev, "gather boundary error\n"); + if (v_lo & TALITOS_CCPSR_LO_GRL) + dev_err(dev, "gather return/length error\n"); + if (v_lo & TALITOS_CCPSR_LO_SB) + dev_err(dev, "scatter boundary error\n"); + if (v_lo & TALITOS_CCPSR_LO_SRL) + dev_err(dev, "scatter return/length error\n"); + } flush_channel(dev, ch, error, reset_ch); @@ -542,10 +605,10 @@ static void talitos_error(struct device *dev, u32 isr, u32 isr_lo) reset_channel(dev, ch); } else { setbits32(priv->chan[ch].reg + TALITOS_CCCR, - TALITOS_CCCR_CONT); + TALITOS2_CCCR_CONT); setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, 0); while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) & - TALITOS_CCCR_CONT) && --timeout) + TALITOS2_CCCR_CONT) && --timeout) cpu_relax(); if (timeout == 0) { dev_err(dev, "failed to restart channel %d\n", @@ -554,9 +617,14 @@ static void talitos_error(struct device *dev, u32 isr, u32 isr_lo) } } } - if (reset_dev || isr & ~TALITOS_ISR_4CHERR || isr_lo) { - dev_err(dev, "done overflow, internal time out, or rngu error: " - "ISR 0x%08x_%08x\n", isr, isr_lo); + if (reset_dev || (is_sec1 && isr & ~TALITOS1_ISR_4CHERR) || + (!is_sec1 && isr & ~TALITOS2_ISR_4CHERR) || isr_lo) { + if (is_sec1 && (isr_lo & TALITOS1_ISR_TEA_ERR)) + dev_err(dev, "TEA error: ISR 0x%08x_%08x\n", + isr, isr_lo); + else + dev_err(dev, "done overflow, internal time out, or " + "rngu error: ISR 0x%08x_%08x\n", isr, isr_lo); /* purge request queues */ for (ch = 0; ch < priv->num_channels; ch++) @@ -567,8 +635,43 @@ static void talitos_error(struct device *dev, u32 isr, u32 isr_lo) } } -#define DEF_TALITOS_INTERRUPT(name, ch_done_mask, ch_err_mask, tlet) \ -static irqreturn_t talitos_interrupt_##name(int irq, void *data) \ +#define DEF_TALITOS1_INTERRUPT(name, ch_done_mask, ch_err_mask, tlet) \ +static irqreturn_t talitos1_interrupt_##name(int irq, void *data) \ +{ \ + struct device *dev = data; \ + struct talitos_private *priv = dev_get_drvdata(dev); \ + u32 isr, isr_lo; \ + unsigned long flags; \ + \ + spin_lock_irqsave(&priv->reg_lock, flags); \ + isr = in_be32(priv->reg + TALITOS_ISR); \ + isr_lo = in_be32(priv->reg + TALITOS_ISR_LO); \ + /* Acknowledge interrupt */ \ + out_be32(priv->reg + TALITOS_ICR, isr & (ch_done_mask | ch_err_mask)); \ + out_be32(priv->reg + TALITOS_ICR_LO, isr_lo); \ + \ + if (unlikely(isr & ch_err_mask || isr_lo & TALITOS1_IMR_LO_INIT)) { \ + spin_unlock_irqrestore(&priv->reg_lock, flags); \ + talitos_error(dev, isr & ch_err_mask, isr_lo); \ + } \ + else { \ + if (likely(isr & ch_done_mask)) { \ + /* mask further done interrupts. */ \ + setbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ + /* done_task will unmask done interrupts at exit */ \ + tasklet_schedule(&priv->done_task[tlet]); \ + } \ + spin_unlock_irqrestore(&priv->reg_lock, flags); \ + } \ + \ + return (isr & (ch_done_mask | ch_err_mask) || isr_lo) ? IRQ_HANDLED : \ + IRQ_NONE; \ +} + +DEF_TALITOS1_INTERRUPT(4ch, TALITOS1_ISR_4CHDONE, TALITOS1_ISR_4CHERR, 0) + +#define DEF_TALITOS2_INTERRUPT(name, ch_done_mask, ch_err_mask, tlet) \ +static irqreturn_t talitos2_interrupt_##name(int irq, void *data) \ { \ struct device *dev = data; \ struct talitos_private *priv = dev_get_drvdata(dev); \ @@ -599,9 +702,12 @@ static irqreturn_t talitos_interrupt_##name(int irq, void *data) \ return (isr & (ch_done_mask | ch_err_mask) || isr_lo) ? IRQ_HANDLED : \ IRQ_NONE; \ } -DEF_TALITOS_INTERRUPT(4ch, TALITOS_ISR_4CHDONE, TALITOS_ISR_4CHERR, 0) -DEF_TALITOS_INTERRUPT(ch0_2, TALITOS_ISR_CH_0_2_DONE, TALITOS_ISR_CH_0_2_ERR, 0) -DEF_TALITOS_INTERRUPT(ch1_3, TALITOS_ISR_CH_1_3_DONE, TALITOS_ISR_CH_1_3_ERR, 1) + +DEF_TALITOS2_INTERRUPT(4ch, TALITOS2_ISR_4CHDONE, TALITOS2_ISR_4CHERR, 0) +DEF_TALITOS2_INTERRUPT(ch0_2, TALITOS2_ISR_CH_0_2_DONE, TALITOS2_ISR_CH_0_2_ERR, + 0) +DEF_TALITOS2_INTERRUPT(ch1_3, TALITOS2_ISR_CH_1_3_DONE, TALITOS2_ISR_CH_1_3_ERR, + 1) /* * hwrng @@ -2639,29 +2745,35 @@ static int talitos_probe_irq(struct platform_device *ofdev) struct device_node *np = ofdev->dev.of_node; struct talitos_private *priv = dev_get_drvdata(dev); int err; + bool is_sec1 = has_ftr_sec1(priv); priv->irq[0] = irq_of_parse_and_map(np, 0); if (!priv->irq[0]) { dev_err(dev, "failed to map irq\n"); return -EINVAL; } + if (is_sec1) { + err = request_irq(priv->irq[0], talitos1_interrupt_4ch, 0, + dev_driver_string(dev), dev); + goto primary_out; + } priv->irq[1] = irq_of_parse_and_map(np, 1); /* get the primary irq line */ if (!priv->irq[1]) { - err = request_irq(priv->irq[0], talitos_interrupt_4ch, 0, + err = request_irq(priv->irq[0], talitos2_interrupt_4ch, 0, dev_driver_string(dev), dev); goto primary_out; } - err = request_irq(priv->irq[0], talitos_interrupt_ch0_2, 0, + err = request_irq(priv->irq[0], talitos2_interrupt_ch0_2, 0, dev_driver_string(dev), dev); if (err) goto primary_out; /* get the secondary irq line */ - err = request_irq(priv->irq[1], talitos_interrupt_ch1_3, 0, + err = request_irq(priv->irq[1], talitos2_interrupt_ch1_3, 0, dev_driver_string(dev), dev); if (err) { dev_err(dev, "failed to request secondary irq\n"); @@ -2702,20 +2814,6 @@ static int talitos_probe(struct platform_device *ofdev) spin_lock_init(&priv->reg_lock); - err = talitos_probe_irq(ofdev); - if (err) - goto err_out; - - if (!priv->irq[1]) { - tasklet_init(&priv->done_task[0], talitos_done_4ch, - (unsigned long)dev); - } else { - tasklet_init(&priv->done_task[0], talitos_done_ch0_2, - (unsigned long)dev); - tasklet_init(&priv->done_task[1], talitos_done_ch1_3, - (unsigned long)dev); - } - priv->reg = of_iomap(np, 0); if (!priv->reg) { dev_err(dev, "failed to of_iomap\n"); @@ -2783,6 +2881,25 @@ static int talitos_probe(struct platform_device *ofdev) stride = TALITOS2_CH_STRIDE; } + err = talitos_probe_irq(ofdev); + if (err) + goto err_out; + + if (of_device_is_compatible(np, "fsl,sec1.0")) { + tasklet_init(&priv->done_task[0], talitos1_done_4ch, + (unsigned long)dev); + } else { + if (!priv->irq[1]) { + tasklet_init(&priv->done_task[0], talitos2_done_4ch, + (unsigned long)dev); + } else { + tasklet_init(&priv->done_task[0], talitos2_done_ch0_2, + (unsigned long)dev); + tasklet_init(&priv->done_task[1], talitos2_done_ch1_3, + (unsigned long)dev); + } + } + priv->chan = kzalloc(sizeof(struct talitos_channel) * priv->num_channels, GFP_KERNEL); if (!priv->chan) { |