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path: root/drivers/crypto/caam/ctrl.c
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Diffstat (limited to 'drivers/crypto/caam/ctrl.c')
-rw-r--r--drivers/crypto/caam/ctrl.c76
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 */