Merge branch 'next' into for-linus

Prepare input updates for 6.6 merge window.

1 files changed, 78 insertions, 34 deletions

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 6278afb951c3..bedcc2ab3a00 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -3,7 +3,7 @@
  * Controller-level driver, kernel property detection, initialization
  *
  * Copyright 2008-2012 Freescale Semiconductor, Inc.
- * Copyright 2018-2019 NXP
+ * Copyright 2018-2019, 2023 NXP
  */
 
 #include <linux/device.h>
@@ -284,6 +284,10 @@ static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
 		const u32 rdsta_if = RDSTA_IF0 << sh_idx;
 		const u32 rdsta_pr = RDSTA_PR0 << sh_idx;
 		const u32 rdsta_mask = rdsta_if | rdsta_pr;
+
+		/* Clear the contents before using the descriptor */
+		memset(desc, 0x00, CAAM_CMD_SZ * 7);
+
 		/*
 		 * If the corresponding bit is set, this state handle
 		 * was initialized by somebody else, so it's left alone.
@@ -327,8 +331,6 @@ static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
 		}
 
 		dev_info(ctrldev, "Instantiated RNG4 SH%d\n", sh_idx);
-		/* Clear the contents before recreating the descriptor */
-		memset(desc, 0x00, CAAM_CMD_SZ * 7);
 	}
 
 	kfree(desc);
@@ -395,7 +397,7 @@ start_rng:
 		      RTMCTL_SAMP_MODE_RAW_ES_SC);
 }
 
-static int caam_get_era_from_hw(struct caam_ctrl __iomem *ctrl)
+static int caam_get_era_from_hw(struct caam_perfmon __iomem *perfmon)
 {
 	static const struct {
 		u16 ip_id;
@@ -421,12 +423,12 @@ static int caam_get_era_from_hw(struct caam_ctrl __iomem *ctrl)
 	u16 ip_id;
 	int i;
 
-	ccbvid = rd_reg32(&ctrl->perfmon.ccb_id);
+	ccbvid = rd_reg32(&perfmon->ccb_id);
 	era = (ccbvid & CCBVID_ERA_MASK) >> CCBVID_ERA_SHIFT;
 	if (era)	/* This is '0' prior to CAAM ERA-6 */
 		return era;
 
-	id_ms = rd_reg32(&ctrl->perfmon.caam_id_ms);
+	id_ms = rd_reg32(&perfmon->caam_id_ms);
 	ip_id = (id_ms & SECVID_MS_IPID_MASK) >> SECVID_MS_IPID_SHIFT;
 	maj_rev = (id_ms & SECVID_MS_MAJ_REV_MASK) >> SECVID_MS_MAJ_REV_SHIFT;
 
@@ -444,9 +446,9 @@ static int caam_get_era_from_hw(struct caam_ctrl __iomem *ctrl)
  * In case this property is not passed an attempt to retrieve the CAAM
  * era via register reads will be made.
  *
- * @ctrl:	controller region
+ * @perfmon:	Performance Monitor Registers
  */
-static int caam_get_era(struct caam_ctrl __iomem *ctrl)
+static int caam_get_era(struct caam_perfmon __iomem *perfmon)
 {
 	struct device_node *caam_node;
 	int ret;
@@ -459,7 +461,7 @@ static int caam_get_era(struct caam_ctrl __iomem *ctrl)
 	if (!ret)
 		return prop;
 	else
-		return caam_get_era_from_hw(ctrl);
+		return caam_get_era_from_hw(perfmon);
 }
 
 /*
@@ -626,12 +628,14 @@ static int caam_probe(struct platform_device *pdev)
 	struct device_node *nprop, *np;
 	struct caam_ctrl __iomem *ctrl;
 	struct caam_drv_private *ctrlpriv;
+	struct caam_perfmon __iomem *perfmon;
 	struct dentry *dfs_root;
 	u32 scfgr, comp_params;
 	u8 rng_vid;
 	int pg_size;
 	int BLOCK_OFFSET = 0;
 	bool pr_support = false;
+	bool reg_access = true;
 
 	ctrlpriv = devm_kzalloc(&pdev->dev, sizeof(*ctrlpriv), GFP_KERNEL);
 	if (!ctrlpriv)
@@ -645,6 +649,17 @@ static int caam_probe(struct platform_device *pdev)
 	caam_imx = (bool)imx_soc_match;
 
 	if (imx_soc_match) {
+		/*
+		 * Until Layerscape and i.MX OP-TEE get in sync,
+		 * only i.MX OP-TEE use cases disallow access to
+		 * caam page 0 (controller) registers.
+		 */
+		np = of_find_compatible_node(NULL, NULL, "linaro,optee-tz");
+		ctrlpriv->optee_en = !!np;
+		of_node_put(np);
+
+		reg_access = !ctrlpriv->optee_en;
+
 		if (!imx_soc_match->data) {
 			dev_err(dev, "No clock data provided for i.MX SoC");
 			return -EINVAL;
@@ -665,10 +680,38 @@ static int caam_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	caam_little_end = !(bool)(rd_reg32(&ctrl->perfmon.status) &
+	ring = 0;
+	for_each_available_child_of_node(nprop, np)
+		if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") ||
+		    of_device_is_compatible(np, "fsl,sec4.0-job-ring")) {
+			u32 reg;
+
+			if (of_property_read_u32_index(np, "reg", 0, &reg)) {
+				dev_err(dev, "%s read reg property error\n",
+					np->full_name);
+				continue;
+			}
+
+			ctrlpriv->jr[ring] = (struct caam_job_ring __iomem __force *)
+					     ((__force uint8_t *)ctrl + reg);
+
+			ctrlpriv->total_jobrs++;
+			ring++;
+		}
+
+	/*
+	 * Wherever possible, instead of accessing registers from the global page,
+	 * use the alias registers in the first (cf. DT nodes order)
+	 * job ring's page.
+	 */
+	perfmon = ring ? (struct caam_perfmon __iomem *)&ctrlpriv->jr[0]->perfmon :
+			 (struct caam_perfmon __iomem *)&ctrl->perfmon;
+
+	caam_little_end = !(bool)(rd_reg32(&perfmon->status) &
 				  (CSTA_PLEND | CSTA_ALT_PLEND));
-	comp_params = rd_reg32(&ctrl->perfmon.comp_parms_ms);
-	if (comp_params & CTPR_MS_PS && rd_reg32(&ctrl->mcr) & MCFGR_LONG_PTR)
+	comp_params = rd_reg32(&perfmon->comp_parms_ms);
+	if (reg_access && comp_params & CTPR_MS_PS &&
+	    rd_reg32(&ctrl->mcr) & MCFGR_LONG_PTR)
 		caam_ptr_sz = sizeof(u64);
 	else
 		caam_ptr_sz = sizeof(u32);
@@ -733,6 +776,9 @@ static int caam_probe(struct platform_device *pdev)
 	}
 #endif
 
+	if (!reg_access)
+		goto set_dma_mask;
+
 	/*
 	 * Enable DECO watchdogs and, if this is a PHYS_ADDR_T_64BIT kernel,
 	 * long pointers in master configuration register.
@@ -772,13 +818,14 @@ static int caam_probe(struct platform_device *pdev)
 			      JRSTART_JR1_START | JRSTART_JR2_START |
 			      JRSTART_JR3_START);
 
+set_dma_mask:
 	ret = dma_set_mask_and_coherent(dev, caam_get_dma_mask(dev));
 	if (ret) {
 		dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n", ret);
 		return ret;
 	}
 
-	ctrlpriv->era = caam_get_era(ctrl);
+	ctrlpriv->era = caam_get_era(perfmon);
 	ctrlpriv->domain = iommu_get_domain_for_dev(dev);
 
 	dfs_root = debugfs_create_dir(dev_name(dev), NULL);
@@ -789,7 +836,7 @@ static int caam_probe(struct platform_device *pdev)
 			return ret;
 	}
 
-	caam_debugfs_init(ctrlpriv, dfs_root);
+	caam_debugfs_init(ctrlpriv, perfmon, dfs_root);
 
 	/* Check to see if (DPAA 1.x) QI present. If so, enable */
 	if (ctrlpriv->qi_present && !caam_dpaa2) {
@@ -808,26 +855,16 @@ static int caam_probe(struct platform_device *pdev)
 #endif
 	}
 
-	ring = 0;
-	for_each_available_child_of_node(nprop, np)
-		if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") ||
-		    of_device_is_compatible(np, "fsl,sec4.0-job-ring")) {
-			ctrlpriv->jr[ring] = (struct caam_job_ring __iomem __force *)
-					     ((__force uint8_t *)ctrl +
-					     (ring + JR_BLOCK_NUMBER) *
-					      BLOCK_OFFSET
-					     );
-			ctrlpriv->total_jobrs++;
-			ring++;
-		}
-
 	/* If no QI and no rings specified, quit and go home */
 	if ((!ctrlpriv->qi_present) && (!ctrlpriv->total_jobrs)) {
 		dev_err(dev, "no queues configured, terminating\n");
 		return -ENOMEM;
 	}
 
-	comp_params = rd_reg32(&ctrl->perfmon.comp_parms_ls);
+	if (!reg_access)
+		goto report_live;
+
+	comp_params = rd_reg32(&perfmon->comp_parms_ls);
 	ctrlpriv->blob_present = !!(comp_params & CTPR_LS_BLOB);
 
 	/*
@@ -836,15 +873,21 @@ static int caam_probe(struct platform_device *pdev)
 	 * check both here.
 	 */
 	if (ctrlpriv->era < 10) {
-		rng_vid = (rd_reg32(&ctrl->perfmon.cha_id_ls) &
+		rng_vid = (rd_reg32(&perfmon->cha_id_ls) &
 			   CHA_ID_LS_RNG_MASK) >> CHA_ID_LS_RNG_SHIFT;
 		ctrlpriv->blob_present = ctrlpriv->blob_present &&
-			(rd_reg32(&ctrl->perfmon.cha_num_ls) & CHA_ID_LS_AES_MASK);
+			(rd_reg32(&perfmon->cha_num_ls) & CHA_ID_LS_AES_MASK);
 	} else {
-		rng_vid = (rd_reg32(&ctrl->vreg.rng) & CHA_VER_VID_MASK) >>
+		struct version_regs __iomem *vreg;
+
+		vreg =  ctrlpriv->total_jobrs ?
+			(struct version_regs __iomem *)&ctrlpriv->jr[0]->vreg :
+			(struct version_regs __iomem *)&ctrl->vreg;
+
+		rng_vid = (rd_reg32(&vreg->rng) & CHA_VER_VID_MASK) >>
 			   CHA_VER_VID_SHIFT;
 		ctrlpriv->blob_present = ctrlpriv->blob_present &&
-			(rd_reg32(&ctrl->vreg.aesa) & CHA_VER_MISC_AES_NUM_MASK);
+			(rd_reg32(&vreg->aesa) & CHA_VER_MISC_AES_NUM_MASK);
 	}
 
 	/*
@@ -923,10 +966,11 @@ static int caam_probe(struct platform_device *pdev)
 		clrsetbits_32(&ctrl->scfgr, 0, SCFGR_RDBENABLE);
 	}
 
+report_live:
 	/* NOTE: RTIC detection ought to go here, around Si time */
 
-	caam_id = (u64)rd_reg32(&ctrl->perfmon.caam_id_ms) << 32 |
-		  (u64)rd_reg32(&ctrl->perfmon.caam_id_ls);
+	caam_id = (u64)rd_reg32(&perfmon->caam_id_ms) << 32 |
+		  (u64)rd_reg32(&perfmon->caam_id_ls);
 
 	/* Report "alive" for developer to see */
 	dev_info(dev, "device ID = 0x%016llx (Era %d)\n", caam_id,