diff options
Diffstat (limited to 'drivers/crypto/caam/ctrl.c')
| -rw-r--r-- | drivers/crypto/caam/ctrl.c | 76 |
1 files changed, 60 insertions, 16 deletions
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index 1c38f86bf63..3cade79ea41 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -5,6 +5,7 @@ * Copyright 2008-2012 Freescale Semiconductor, Inc. */ +#include <linux/device.h> #include <linux/of_address.h> #include <linux/of_irq.h> @@ -87,6 +88,17 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc, /* Set the bit to request direct access to DECO0 */ topregs = (struct caam_full __iomem *)ctrlpriv->ctrl; + + if (ctrlpriv->virt_en == 1) { + setbits32(&topregs->ctrl.deco_rsr, DECORSR_JR0); + + while (!(rd_reg32(&topregs->ctrl.deco_rsr) & DECORSR_VALID) && + --timeout) + cpu_relax(); + + timeout = 100000; + } + setbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE); while (!(rd_reg32(&topregs->ctrl.deco_rq) & DECORR_DEN0) && @@ -129,6 +141,9 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc, *status = rd_reg32(&topregs->deco.op_status_hi) & DECO_OP_STATUS_HI_ERR_MASK; + if (ctrlpriv->virt_en == 1) + clrbits32(&topregs->ctrl.deco_rsr, DECORSR_JR0); + /* Mark the DECO as free */ clrbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE); @@ -295,9 +310,6 @@ static int caam_remove(struct platform_device *pdev) /* Unmap controller region */ iounmap(&topregs->ctrl); - kfree(ctrlpriv->jrpdev); - kfree(ctrlpriv); - return ret; } @@ -380,9 +392,11 @@ static int caam_probe(struct platform_device *pdev) #ifdef CONFIG_DEBUG_FS struct caam_perfmon *perfmon; #endif - u64 cha_vid; + u32 scfgr, comp_params; + u32 cha_vid_ls; - ctrlpriv = kzalloc(sizeof(struct caam_drv_private), GFP_KERNEL); + ctrlpriv = devm_kzalloc(&pdev->dev, sizeof(struct caam_drv_private), + GFP_KERNEL); if (!ctrlpriv) return -ENOMEM; @@ -413,13 +427,40 @@ static int caam_probe(struct platform_device *pdev) setbits32(&topregs->ctrl.mcr, MCFGR_WDENABLE | (sizeof(dma_addr_t) == sizeof(u64) ? MCFGR_LONG_PTR : 0)); + /* + * Read the Compile Time paramters and SCFGR to determine + * if Virtualization is enabled for this platform + */ + comp_params = rd_reg32(&topregs->ctrl.perfmon.comp_parms_ms); + scfgr = rd_reg32(&topregs->ctrl.scfgr); + + ctrlpriv->virt_en = 0; + if (comp_params & CTPR_MS_VIRT_EN_INCL) { + /* VIRT_EN_INCL = 1 & VIRT_EN_POR = 1 or + * VIRT_EN_INCL = 1 & VIRT_EN_POR = 0 & SCFGR_VIRT_EN = 1 + */ + if ((comp_params & CTPR_MS_VIRT_EN_POR) || + (!(comp_params & CTPR_MS_VIRT_EN_POR) && + (scfgr & SCFGR_VIRT_EN))) + ctrlpriv->virt_en = 1; + } else { + /* VIRT_EN_INCL = 0 && VIRT_EN_POR_VALUE = 1 */ + if (comp_params & CTPR_MS_VIRT_EN_POR) + ctrlpriv->virt_en = 1; + } + + if (ctrlpriv->virt_en == 1) + setbits32(&topregs->ctrl.jrstart, JRSTART_JR0_START | + JRSTART_JR1_START | JRSTART_JR2_START | + JRSTART_JR3_START); + if (sizeof(dma_addr_t) == sizeof(u64)) if (of_device_is_compatible(nprop, "fsl,sec-v5.0")) - dma_set_mask(dev, DMA_BIT_MASK(40)); + dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40)); else - dma_set_mask(dev, DMA_BIT_MASK(36)); + dma_set_mask_and_coherent(dev, DMA_BIT_MASK(36)); else - dma_set_mask(dev, DMA_BIT_MASK(32)); + dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); /* * Detect and enable JobRs @@ -432,8 +473,9 @@ static int caam_probe(struct platform_device *pdev) of_device_is_compatible(np, "fsl,sec4.0-job-ring")) rspec++; - ctrlpriv->jrpdev = kzalloc(sizeof(struct platform_device *) * rspec, - GFP_KERNEL); + ctrlpriv->jrpdev = devm_kzalloc(&pdev->dev, + sizeof(struct platform_device *) * rspec, + GFP_KERNEL); if (ctrlpriv->jrpdev == NULL) { iounmap(&topregs->ctrl); return -ENOMEM; @@ -456,8 +498,9 @@ static int caam_probe(struct platform_device *pdev) } /* Check to see if QI present. If so, enable */ - ctrlpriv->qi_present = !!(rd_reg64(&topregs->ctrl.perfmon.comp_parms) & - CTPR_QI_MASK); + ctrlpriv->qi_present = + !!(rd_reg32(&topregs->ctrl.perfmon.comp_parms_ms) & + CTPR_MS_QI_MASK); if (ctrlpriv->qi_present) { ctrlpriv->qi = (struct caam_queue_if __force *)&topregs->qi; /* This is all that's required to physically enable QI */ @@ -471,13 +514,13 @@ static int caam_probe(struct platform_device *pdev) return -ENOMEM; } - cha_vid = rd_reg64(&topregs->ctrl.perfmon.cha_id); + cha_vid_ls = rd_reg32(&topregs->ctrl.perfmon.cha_id_ls); /* * If SEC has RNG version >= 4 and RNG state handle has not been * already instantiated, do RNG instantiation */ - if ((cha_vid & CHA_ID_RNG_MASK) >> CHA_ID_RNG_SHIFT >= 4) { + if ((cha_vid_ls & CHA_ID_LS_RNG_MASK) >> CHA_ID_LS_RNG_SHIFT >= 4) { ctrlpriv->rng4_sh_init = rd_reg32(&topregs->ctrl.r4tst[0].rdsta); /* @@ -531,7 +574,8 @@ static int caam_probe(struct platform_device *pdev) /* NOTE: RTIC detection ought to go here, around Si time */ - caam_id = rd_reg64(&topregs->ctrl.perfmon.caam_id); + caam_id = (u64)rd_reg32(&topregs->ctrl.perfmon.caam_id_ms) << 32 | + (u64)rd_reg32(&topregs->ctrl.perfmon.caam_id_ls); /* Report "alive" for developer to see */ dev_info(dev, "device ID = 0x%016llx (Era %d)\n", caam_id, @@ -547,7 +591,7 @@ static int caam_probe(struct platform_device *pdev) */ perfmon = (struct caam_perfmon __force *)&ctrl->perfmon; - ctrlpriv->dfs_root = debugfs_create_dir("caam", NULL); + ctrlpriv->dfs_root = debugfs_create_dir(dev_name(dev), NULL); ctrlpriv->ctl = debugfs_create_dir("ctl", ctrlpriv->dfs_root); /* Controller-level - performance monitor counters */ |