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-rw-r--r--drivers/crypto/caam/ctrl.c114
-rw-r--r--drivers/crypto/caam/intern.h9
-rw-r--r--drivers/crypto/caam/regs.h38
3 files changed, 81 insertions, 80 deletions
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index c6210373b1be..31000c8c4a90 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -1,5 +1,4 @@
-/*
- * CAAM control-plane driver backend
+/* * CAAM control-plane driver backend
* Controller-level driver, kernel property detection, initialization
*
* Copyright 2008-2012 Freescale Semiconductor, Inc.
@@ -81,38 +80,37 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc,
u32 *status)
{
struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev);
- struct caam_full __iomem *topregs;
+ struct caam_ctrl __iomem *ctrl = ctrlpriv->ctrl;
+ struct caam_deco __iomem *deco = ctrlpriv->deco;
unsigned int timeout = 100000;
u32 deco_dbg_reg, flags;
int i;
- /* 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);
+ setbits32(&ctrl->deco_rsr, DECORSR_JR0);
- while (!(rd_reg32(&topregs->ctrl.deco_rsr) & DECORSR_VALID) &&
+ while (!(rd_reg32(&ctrl->deco_rsr) & DECORSR_VALID) &&
--timeout)
cpu_relax();
timeout = 100000;
}
- setbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE);
+ setbits32(&ctrl->deco_rq, DECORR_RQD0ENABLE);
- while (!(rd_reg32(&topregs->ctrl.deco_rq) & DECORR_DEN0) &&
+ while (!(rd_reg32(&ctrl->deco_rq) & DECORR_DEN0) &&
--timeout)
cpu_relax();
if (!timeout) {
dev_err(ctrldev, "failed to acquire DECO 0\n");
- clrbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE);
+ clrbits32(&ctrl->deco_rq, DECORR_RQD0ENABLE);
return -ENODEV;
}
for (i = 0; i < desc_len(desc); i++)
- wr_reg32(&topregs->deco.descbuf[i], *(desc + i));
+ wr_reg32(&deco->descbuf[i], *(desc + i));
flags = DECO_JQCR_WHL;
/*
@@ -123,11 +121,11 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc,
flags |= DECO_JQCR_FOUR;
/* Instruct the DECO to execute it */
- wr_reg32(&topregs->deco.jr_ctl_hi, flags);
+ wr_reg32(&deco->jr_ctl_hi, flags);
timeout = 10000000;
do {
- deco_dbg_reg = rd_reg32(&topregs->deco.desc_dbg);
+ deco_dbg_reg = rd_reg32(&deco->desc_dbg);
/*
* If an error occured in the descriptor, then
* the DECO status field will be set to 0x0D
@@ -138,14 +136,14 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc,
cpu_relax();
} while ((deco_dbg_reg & DESC_DBG_DECO_STAT_VALID) && --timeout);
- *status = rd_reg32(&topregs->deco.op_status_hi) &
+ *status = rd_reg32(&deco->op_status_hi) &
DECO_OP_STATUS_HI_ERR_MASK;
if (ctrlpriv->virt_en == 1)
- clrbits32(&topregs->ctrl.deco_rsr, DECORSR_JR0);
+ clrbits32(&ctrl->deco_rsr, DECORSR_JR0);
/* Mark the DECO as free */
- clrbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE);
+ clrbits32(&ctrl->deco_rq, DECORR_RQD0ENABLE);
if (!timeout)
return -EAGAIN;
@@ -176,13 +174,13 @@ static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
int gen_sk)
{
struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev);
- struct caam_full __iomem *topregs;
+ struct caam_ctrl __iomem *ctrl;
struct rng4tst __iomem *r4tst;
u32 *desc, status, rdsta_val;
int ret = 0, sh_idx;
- topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;
- r4tst = &topregs->ctrl.r4tst[0];
+ ctrl = (struct caam_ctrl __iomem *)ctrlpriv->ctrl;
+ r4tst = &ctrl->r4tst[0];
desc = kmalloc(CAAM_CMD_SZ * 7, GFP_KERNEL);
if (!desc)
@@ -212,12 +210,11 @@ static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
* CAAM eras), then try again.
*/
rdsta_val =
- rd_reg32(&topregs->ctrl.r4tst[0].rdsta) & RDSTA_IFMASK;
+ rd_reg32(&ctrl->r4tst[0].rdsta) & RDSTA_IFMASK;
if (status || !(rdsta_val & (1 << sh_idx)))
ret = -EAGAIN;
if (ret)
break;
-
dev_info(ctrldev, "Instantiated RNG4 SH%d\n", sh_idx);
/* Clear the contents before recreating the descriptor */
memset(desc, 0x00, CAAM_CMD_SZ * 7);
@@ -285,12 +282,12 @@ static int caam_remove(struct platform_device *pdev)
{
struct device *ctrldev;
struct caam_drv_private *ctrlpriv;
- struct caam_full __iomem *topregs;
+ struct caam_ctrl __iomem *ctrl;
int ring, ret = 0;
ctrldev = &pdev->dev;
ctrlpriv = dev_get_drvdata(ctrldev);
- topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;
+ ctrl = (struct caam_ctrl __iomem *)ctrlpriv->ctrl;
/* Remove platform devices for JobRs */
for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) {
@@ -308,7 +305,7 @@ static int caam_remove(struct platform_device *pdev)
#endif
/* Unmap controller region */
- iounmap(&topregs->ctrl);
+ iounmap(&ctrl);
return ret;
}
@@ -323,12 +320,12 @@ static void kick_trng(struct platform_device *pdev, int ent_delay)
{
struct device *ctrldev = &pdev->dev;
struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev);
- struct caam_full __iomem *topregs;
+ struct caam_ctrl __iomem *ctrl;
struct rng4tst __iomem *r4tst;
u32 val;
- topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;
- r4tst = &topregs->ctrl.r4tst[0];
+ ctrl = (struct caam_ctrl __iomem *)ctrlpriv->ctrl;
+ r4tst = &ctrl->r4tst[0];
/* put RNG4 into program mode */
setbits32(&r4tst->rtmctl, RTMCTL_PRGM);
@@ -396,13 +393,14 @@ static int caam_probe(struct platform_device *pdev)
struct device *dev;
struct device_node *nprop, *np;
struct caam_ctrl __iomem *ctrl;
- struct caam_full __iomem *topregs;
struct caam_drv_private *ctrlpriv;
#ifdef CONFIG_DEBUG_FS
struct caam_perfmon *perfmon;
#endif
u32 scfgr, comp_params;
u32 cha_vid_ls;
+ int pg_size;
+ int BLOCK_OFFSET = 0;
ctrlpriv = devm_kzalloc(&pdev->dev, sizeof(struct caam_drv_private),
GFP_KERNEL);
@@ -421,10 +419,27 @@ static int caam_probe(struct platform_device *pdev)
dev_err(dev, "caam: of_iomap() failed\n");
return -ENOMEM;
}
- ctrlpriv->ctrl = (struct caam_ctrl __force *)ctrl;
+ /* Finding the page size for using the CTPR_MS register */
+ comp_params = rd_reg32(&ctrl->perfmon.comp_parms_ms);
+ pg_size = (comp_params & CTPR_MS_PG_SZ_MASK) >> CTPR_MS_PG_SZ_SHIFT;
- /* topregs used to derive pointers to CAAM sub-blocks only */
- topregs = (struct caam_full __iomem *)ctrl;
+ /* Allocating the BLOCK_OFFSET based on the supported page size on
+ * the platform
+ */
+ if (pg_size == 0)
+ BLOCK_OFFSET = PG_SIZE_4K;
+ else
+ BLOCK_OFFSET = PG_SIZE_64K;
+
+ ctrlpriv->ctrl = (struct caam_ctrl __force *)ctrl;
+ ctrlpriv->assure = (struct caam_assurance __force *)
+ ((uint8_t *)ctrl +
+ BLOCK_OFFSET * ASSURE_BLOCK_NUMBER
+ );
+ ctrlpriv->deco = (struct caam_deco __force *)
+ ((uint8_t *)ctrl +
+ BLOCK_OFFSET * DECO_BLOCK_NUMBER
+ );
/* Get the IRQ of the controller (for security violations only) */
ctrlpriv->secvio_irq = irq_of_parse_and_map(nprop, 0);
@@ -433,15 +448,14 @@ static int caam_probe(struct platform_device *pdev)
* Enable DECO watchdogs and, if this is a PHYS_ADDR_T_64BIT kernel,
* long pointers in master configuration register
*/
- setbits32(&topregs->ctrl.mcr, MCFGR_WDENABLE |
+ setbits32(&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);
+ scfgr = rd_reg32(&ctrl->scfgr);
ctrlpriv->virt_en = 0;
if (comp_params & CTPR_MS_VIRT_EN_INCL) {
@@ -459,7 +473,7 @@ static int caam_probe(struct platform_device *pdev)
}
if (ctrlpriv->virt_en == 1)
- setbits32(&topregs->ctrl.jrstart, JRSTART_JR0_START |
+ setbits32(&ctrl->jrstart, JRSTART_JR0_START |
JRSTART_JR1_START | JRSTART_JR2_START |
JRSTART_JR3_START);
@@ -486,7 +500,7 @@ static int caam_probe(struct platform_device *pdev)
sizeof(struct platform_device *) * rspec,
GFP_KERNEL);
if (ctrlpriv->jrpdev == NULL) {
- iounmap(&topregs->ctrl);
+ iounmap(&ctrl);
return -ENOMEM;
}
@@ -502,18 +516,26 @@ static int caam_probe(struct platform_device *pdev)
ring);
continue;
}
+ ctrlpriv->jr[ring] = (struct caam_job_ring __force *)
+ ((uint8_t *)ctrl +
+ (ring + JR_BLOCK_NUMBER) *
+ BLOCK_OFFSET
+ );
ctrlpriv->total_jobrs++;
ring++;
- }
+ }
/* Check to see if QI present. If so, enable */
ctrlpriv->qi_present =
- !!(rd_reg32(&topregs->ctrl.perfmon.comp_parms_ms) &
+ !!(rd_reg32(&ctrl->perfmon.comp_parms_ms) &
CTPR_MS_QI_MASK);
if (ctrlpriv->qi_present) {
- ctrlpriv->qi = (struct caam_queue_if __force *)&topregs->qi;
+ ctrlpriv->qi = (struct caam_queue_if __force *)
+ ((uint8_t *)ctrl +
+ BLOCK_OFFSET * QI_BLOCK_NUMBER
+ );
/* This is all that's required to physically enable QI */
- wr_reg32(&topregs->qi.qi_control_lo, QICTL_DQEN);
+ wr_reg32(&ctrlpriv->qi->qi_control_lo, QICTL_DQEN);
}
/* If no QI and no rings specified, quit and go home */
@@ -523,7 +545,7 @@ static int caam_probe(struct platform_device *pdev)
return -ENOMEM;
}
- cha_vid_ls = rd_reg32(&topregs->ctrl.perfmon.cha_id_ls);
+ cha_vid_ls = rd_reg32(&ctrl->perfmon.cha_id_ls);
/*
* If SEC has RNG version >= 4 and RNG state handle has not been
@@ -531,7 +553,7 @@ static int caam_probe(struct platform_device *pdev)
*/
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);
+ rd_reg32(&ctrl->r4tst[0].rdsta);
/*
* If the secure keys (TDKEK, JDKEK, TDSK), were already
* generated, signal this to the function that is instantiating
@@ -542,7 +564,7 @@ static int caam_probe(struct platform_device *pdev)
ctrlpriv->rng4_sh_init &= RDSTA_IFMASK;
do {
int inst_handles =
- rd_reg32(&topregs->ctrl.r4tst[0].rdsta) &
+ rd_reg32(&ctrl->r4tst[0].rdsta) &
RDSTA_IFMASK;
/*
* If either SH were instantiated by somebody else
@@ -587,13 +609,13 @@ static int caam_probe(struct platform_device *pdev)
ctrlpriv->rng4_sh_init = ~ctrlpriv->rng4_sh_init & RDSTA_IFMASK;
/* Enable RDB bit so that RNG works faster */
- setbits32(&topregs->ctrl.scfgr, SCFGR_RDBENABLE);
+ setbits32(&ctrl->scfgr, SCFGR_RDBENABLE);
}
/* NOTE: RTIC detection ought to go here, around Si time */
- caam_id = (u64)rd_reg32(&topregs->ctrl.perfmon.caam_id_ms) << 32 |
- (u64)rd_reg32(&topregs->ctrl.perfmon.caam_id_ls);
+ caam_id = (u64)rd_reg32(&ctrl->perfmon.caam_id_ms) << 32 |
+ (u64)rd_reg32(&ctrl->perfmon.caam_id_ls);
/* Report "alive" for developer to see */
dev_info(dev, "device ID = 0x%016llx (Era %d)\n", caam_id,
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index 97363db4e56e..89b94cc9e7a2 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -70,10 +70,11 @@ struct caam_drv_private {
struct platform_device *pdev;
/* Physical-presence section */
- struct caam_ctrl *ctrl; /* controller region */
- struct caam_deco **deco; /* DECO/CCB views */
- struct caam_assurance *ac;
- struct caam_queue_if *qi; /* QI control region */
+ struct caam_ctrl __iomem *ctrl; /* controller region */
+ struct caam_deco __iomem *deco; /* DECO/CCB views */
+ struct caam_assurance __iomem *assure;
+ struct caam_queue_if __iomem *qi; /* QI control region */
+ struct caam_job_ring __iomem *jr[4]; /* JobR's register space */
/*
* Detected geometry block. Filled in from device tree if powerpc,
diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index bc9cd62b96e0..378ddc17f60e 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -194,6 +194,8 @@ struct caam_perfmon {
#define CTPR_MS_QI_MASK (0x1ull << CTPR_MS_QI_SHIFT)
#define CTPR_MS_VIRT_EN_INCL 0x00000001
#define CTPR_MS_VIRT_EN_POR 0x00000002
+#define CTPR_MS_PG_SZ_MASK 0x10
+#define CTPR_MS_PG_SZ_SHIFT 4
u32 comp_parms_ms; /* CTPR - Compile Parameters Register */
u32 comp_parms_ls; /* CTPR - Compile Parameters Register */
u64 rsvd1[2];
@@ -769,34 +771,10 @@ struct caam_deco {
#define DECO_JQCR_WHL 0x20000000
#define DECO_JQCR_FOUR 0x10000000
-/*
- * Current top-level view of memory map is:
- *
- * 0x0000 - 0x0fff - CAAM Top-Level Control
- * 0x1000 - 0x1fff - Job Ring 0
- * 0x2000 - 0x2fff - Job Ring 1
- * 0x3000 - 0x3fff - Job Ring 2
- * 0x4000 - 0x4fff - Job Ring 3
- * 0x5000 - 0x5fff - (unused)
- * 0x6000 - 0x6fff - Assurance Controller
- * 0x7000 - 0x7fff - Queue Interface
- * 0x8000 - 0x8fff - DECO-CCB 0
- * 0x9000 - 0x9fff - DECO-CCB 1
- * 0xa000 - 0xafff - DECO-CCB 2
- * 0xb000 - 0xbfff - DECO-CCB 3
- * 0xc000 - 0xcfff - DECO-CCB 4
- *
- * caam_full describes the full register view of CAAM if useful,
- * although many configurations may choose to implement parts of
- * the register map separately, in differing privilege regions
- */
-struct caam_full {
- struct caam_ctrl __iomem ctrl;
- struct caam_job_ring jr[4];
- u64 rsvd[512];
- struct caam_assurance assure;
- struct caam_queue_if qi;
- struct caam_deco deco;
-};
-
+#define JR_BLOCK_NUMBER 1
+#define ASSURE_BLOCK_NUMBER 6
+#define QI_BLOCK_NUMBER 7
+#define DECO_BLOCK_NUMBER 8
+#define PG_SIZE_4K 0x1000
+#define PG_SIZE_64K 0x10000
#endif /* REGS_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 10:07:29 +0000