Merge tag 'soc-drivers-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

f2ad904e · Linus Torvalds <[email protected]> · 2025-01-24 14:56:59 -08:00

Pull SoC driver updates from Arnd Bergmann:
 "These are changes to SoC specific drivers and DT bindings that don't
  have a separate subsystem tree, or that get grouped here for
  simplicity.

  Nothing out of the ordinary for the 6.14 release here:

   - Most of the updates are for Qualcomm specific drivers, adding
     support for additional SoCs in the exssting drivers, and support
     for wrapped encryption key access in the SCM firmware.

   - The Arm SCMI firmware code gains support for having multiple
     instances of firmware running, and better module auto loading.

   - A few minor updates for litex, samsung, ti, tegra, mediatek, imx
     and renesas platforms.

   - Reset controller updates for amlogic, to add support for the A1 soc
     and clean up the existing code.

   - Memory controller updates for ti davinci aemif, refactoring the
     code and adding a few interfaces to other drivers"

* tag 'soc-drivers-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (58 commits)
  drivers/soc/litex: Use devm_register_restart_handler()
  reset: amlogic: aux: drop aux registration helper
  reset: amlogic: aux: get regmap through parent device
  reset: amlogic: add support for A1 SoC in auxiliary reset driver
  dt-bindings: reset: add bindings for A1 SoC audio reset controller
  soc/tegra: fuse: Update Tegra234 nvmem keepout list
  soc/tegra: Fix spelling error in tegra234_lookup_slave_timeout()
  soc/tegra: cbb: Drop unnecessary debugfs error handling
  firmware: qcom: scm: add calls for wrapped key support
  soc: qcom: pd_mapper: Add SM7225 compatible
  dt-bindings: firmware: qcom,scm: Document ipq5424 SCM
  soc: qcom: llcc: Update configuration data for IPQ5424
  dt-bindings: cache: qcom,llcc: Add IPQ5424 compatible
  soc: mediatek: mtk-devapc: Fix leaking IO map on driver remove
  soc: mediatek: mtk-devapc: Fix leaking IO map on error paths
  firmware: qcom: scm: smc: Narrow 'mempool' variable scope
  firmware: qcom: scm: smc: Handle missing SCM device
  firmware: qcom: scm: Cleanup global '__scm' on probe failures
  firmware: qcom: scm: Fix missing read barrier in qcom_scm_get_tzmem_pool()
  firmware: qcom: scm: Fix missing read barrier in qcom_scm_is_available()
  ...

Commit: f2ad904e923f70a80f478febf001f88dfd65a64c
Parents: f1020392 · 9ec80025

Merge commit. Changes below are compared with the first parent: f1020392.

Changes

47 files changed · +876 −374

File	Status	Add	Del	Content
Documentation/devicetree/bindings/cache/qcom,llcc.yaml	modified	+18	−2	View file
Documentation/devicetree/bindings/firmware/qcom,scm.yaml	modified	+2	−0	View file
Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml	modified	+2	−0	View file
Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml	modified	+1	−0	View file
Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml	modified	+1	−0	View file
Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml	modified	+8	−0	View file
MAINTAINERS	modified	+1	−0	View file
drivers/firmware/arm_scmi/common.h	modified	+2	−2	View file
drivers/firmware/arm_scmi/driver.c	modified	+55	−19	View file
drivers/firmware/arm_scmi/transports/mailbox.c	modified	+1	−0	View file
drivers/firmware/arm_scmi/transports/smc.c	modified	+1	−0	View file
drivers/firmware/arm_scmi/transports/virtio.c	modified	+1	−0	View file
drivers/firmware/arm_scmi/vendors/imx/imx-sm-bbm.c	modified	+3	−2	View file
drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c	modified	+3	−2	View file
drivers/firmware/qcom/qcom_scm-smc.c	modified	+5	−1	View file
drivers/firmware/qcom/qcom_scm.c	modified	+255	−16	View file
drivers/firmware/qcom/qcom_scm.h	modified	+4	−0	View file
drivers/memory/omap-gpmc.c	modified	+7	−26	View file
drivers/memory/tegra/tegra20-emc.c	modified	+4	−4	View file
drivers/memory/ti-aemif.c	modified	+116	−76	View file
drivers/reset/amlogic/reset-meson-aux.c	modified	+21	−76	View file
drivers/soc/imx/Makefile	modified	+1	−1	View file
drivers/soc/imx/soc-imx9.c	added	+128	−0	View file
drivers/soc/litex/litex_soc_ctrl.c	modified	+5	−18	View file
drivers/soc/mediatek/mtk-devapc.c	modified	+14	−5	View file
drivers/soc/qcom/Kconfig	modified	+1	−1	View file
drivers/soc/qcom/llcc-qcom.c	modified	+56	−2	View file
drivers/soc/qcom/pmic_glink.c	modified	+29	−41	View file
drivers/soc/qcom/pmic_glink_altmode.c	modified	+5	−6	View file
drivers/soc/qcom/qcom_pd_mapper.c	modified	+2	−0	View file
drivers/soc/qcom/rmtfs_mem.c	modified	+1	−1	View file
drivers/soc/qcom/smem_state.c	modified	+2	−1	View file
drivers/soc/qcom/socinfo.c	modified	+2	−1	View file
drivers/soc/renesas/Kconfig	modified	+5	−0	View file
drivers/soc/samsung/exynos-pmu.c	modified	+1	−1	View file
drivers/soc/tegra/cbb/tegra-cbb.c	modified	+4	−16	View file
drivers/soc/tegra/cbb/tegra234-cbb.c	modified	+1	−1	View file
drivers/soc/tegra/fuse/fuse-tegra30.c	modified	+11	−6	View file
drivers/tee/optee/smc_abi.c	modified	+3	−2	View file
include/dt-bindings/arm/qcom,ids.h	modified	+1	−0	View file
include/dt-bindings/reset/amlogic,meson-a1-audio-reset.h	added	+36	−0	View file
include/linux/firmware/qcom/qcom_scm.h	modified	+8	−0	View file
include/linux/memory/ti-aemif.h	added	+32	−0	View file
include/linux/omap-gpmc.h	modified	+0	−4	View file
include/linux/scmi_imx_protocol.h	modified	+5	−4	View file
include/soc/amlogic/reset-meson-aux.h	deleted	+0	−23	View before deletion
include/soc/qcom/tcs.h	modified	+12	−14	View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/devicetree/bindings/cache/qcom,llcc.yaml

View file

diff --git a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
index 03b1941..e5effbb 100644
--- a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
+++ b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
@@ -20,6 +20,7 @@ description: |
 properties:
   compatible:
     enum:
+      - qcom,ipq5424-llcc
       - qcom,qcs615-llcc
       - qcom,qcs8300-llcc
       - qcom,qdu1000-llcc
@@ -42,11 +43,11 @@ properties:
       - qcom,x1e80100-llcc
 
   reg:
-    minItems: 2
+    minItems: 1
     maxItems: 10
 
   reg-names:
-    minItems: 2
+    minItems: 1
     maxItems: 10
 
   interrupts:
@@ -71,6 +72,21 @@ allOf:
         compatible:
           contains:
             enum:
+              - qcom,ipq5424-llcc
+    then:
+      properties:
+        reg:
+          items:
+            - description: LLCC0 base register region
+        reg-names:
+          items:
+            - const: llcc0_base
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
               - qcom,sar1130p-llcc
               - qcom,sar2130p-llcc
     then:

Documentation/devicetree/bindings/firmware/qcom,scm.yaml

View file

diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
index 2ee0300..8cdaac8 100644
--- a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
+++ b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
@@ -26,6 +26,7 @@ properties:
           - qcom,scm-ipq4019
           - qcom,scm-ipq5018
           - qcom,scm-ipq5332
+          - qcom,scm-ipq5424
           - qcom,scm-ipq6018
           - qcom,scm-ipq806x
           - qcom,scm-ipq8074
@@ -42,6 +43,7 @@ properties:
           - qcom,scm-msm8996
           - qcom,scm-msm8998
           - qcom,scm-qcm2290
+          - qcom,scm-qcs615
           - qcom,scm-qcs8300
           - qcom,scm-qdu1000
           - qcom,scm-sa8255p

Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml

View file

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml b/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
index 251410a..ff24b5e 100644
--- a/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
+++ b/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
@@ -26,6 +26,7 @@ properties:
       - items:
           - enum:
               - qcom,qcm2290-cpu-bwmon
+              - qcom,qcs615-cpu-bwmon
               - qcom,qcs8300-cpu-bwmon
               - qcom,sa8775p-cpu-bwmon
               - qcom,sc7180-cpu-bwmon
@@ -41,6 +42,7 @@ properties:
           - const: qcom,sdm845-bwmon    # BWMON v4, unified register space
       - items:
           - enum:
+              - qcom,qcs615-llcc-bwmon
               - qcom,qcs8300-llcc-bwmon
               - qcom,sa8775p-llcc-bwmon
               - qcom,sc7180-llcc-bwmon

Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml

View file

diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml
index e63f800..41fbbe0 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml
@@ -25,6 +25,7 @@ properties:
   compatible:
     items:
       - enum:
+          - qcom,qcs615-aoss-qmp
           - qcom,qcs8300-aoss-qmp
           - qcom,qdu1000-aoss-qmp
           - qcom,sa8255p-aoss-qmp

Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml

View file

diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
index f80fcbc..5b04693 100644
--- a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
+++ b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
@@ -64,6 +64,7 @@ properties:
 
   samsung,mode:
     $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2, 3]
     description:
       Selects USI function (which serial protocol to use). Refer to
       <include/dt-bindings/soc/samsung,exynos-usi.h> for valid USI mode values.

Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml

View file

diff --git a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
index 3ca2205..a75aef2 100644
--- a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
+++ b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
@@ -21,6 +21,10 @@ properties:
               - samsung,exynos3-sysreg
               - samsung,exynos4-sysreg
               - samsung,exynos5-sysreg
+              - samsung,exynos8895-fsys0-sysreg
+              - samsung,exynos8895-fsys1-sysreg
+              - samsung,exynos8895-peric0-sysreg
+              - samsung,exynos8895-peric1-sysreg
               - samsung,exynosautov920-peric0-sysreg
               - samsung,exynosautov920-peric1-sysreg
               - tesla,fsd-cam-sysreg
@@ -79,6 +83,10 @@ allOf:
               - samsung,exynos850-cmgp-sysreg
               - samsung,exynos850-peri-sysreg
               - samsung,exynos850-sysreg
+              - samsung,exynos8895-fsys0-sysreg
+              - samsung,exynos8895-fsys1-sysreg
+              - samsung,exynos8895-peric0-sysreg
+              - samsung,exynos8895-peric1-sysreg
     then:
       required:
         - clocks

MAINTAINERS

View file

diff --git a/MAINTAINERS b/MAINTAINERS
index 853e01d..043dc63 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -23661,6 +23661,7 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
 F:	Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml
 F:	drivers/pmdomain/ti/omap_prm.c
 F:	drivers/soc/ti/*
+F:	include/linux/pruss_driver.h
 
 TI LM49xxx FAMILY ASoC CODEC DRIVERS
 M:	M R Swami Reddy <[email protected]>

drivers/firmware/arm_scmi/common.h

View file

diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h
index 48b12f8..10ea796 100644
--- a/drivers/firmware/arm_scmi/common.h
+++ b/drivers/firmware/arm_scmi/common.h
@@ -442,7 +442,7 @@ struct scmi_transport_core_operations {
  */
 struct scmi_transport {
 	struct device *supplier;
-	struct scmi_desc *desc;
+	struct scmi_desc desc;
 	struct scmi_transport_core_operations **core_ops;
 };
 
@@ -468,7 +468,7 @@ static int __tag##_probe(struct platform_device *pdev)			       \
 	device_set_of_node_from_dev(&spdev->dev, dev);			       \
 									       \
 	strans.supplier = dev;						       \
-	strans.desc = &(__desc);					       \
+	memcpy(&strans.desc, &(__desc), sizeof(strans.desc));		       \
 	strans.core_ops = &(__core_ops);				       \
 									       \
 	ret = platform_device_add_data(spdev, &strans, sizeof(strans));	       \

drivers/firmware/arm_scmi/driver.c

View file

diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 1b5fb2c..60050da 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -24,6 +24,7 @@
 #include <linux/io.h>
 #include <linux/io-64-nonatomic-hi-lo.h>
 #include <linux/kernel.h>
+#include <linux/kmod.h>
 #include <linux/ktime.h>
 #include <linux/hashtable.h>
 #include <linux/list.h>
@@ -43,6 +44,8 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/scmi.h>
 
+#define SCMI_VENDOR_MODULE_ALIAS_FMT	"scmi-protocol-0x%02x-%s"
+
 static DEFINE_IDA(scmi_id);
 
 static DEFINE_XARRAY(scmi_protocols);
@@ -276,6 +279,44 @@ scmi_vendor_protocol_lookup(int protocol_id, char *vendor_id,
 }
 
 static const struct scmi_protocol *
+scmi_vendor_protocol_get(int protocol_id, struct scmi_revision_info *version)
+{
+	const struct scmi_protocol *proto;
+
+	proto = scmi_vendor_protocol_lookup(protocol_id, version->vendor_id,
+					    version->sub_vendor_id,
+					    version->impl_ver);
+	if (!proto) {
+		int ret;
+
+		pr_debug("Looking for '" SCMI_VENDOR_MODULE_ALIAS_FMT "'\n",
+			 protocol_id, version->vendor_id);
+
+		/* Note that vendor_id is mandatory for vendor protocols */
+		ret = request_module(SCMI_VENDOR_MODULE_ALIAS_FMT,
+				     protocol_id, version->vendor_id);
+		if (ret) {
+			pr_warn("Problem loading module for protocol 0x%x\n",
+				protocol_id);
+			return NULL;
+		}
+
+		/* Lookup again, once modules loaded */
+		proto = scmi_vendor_protocol_lookup(protocol_id,
+						    version->vendor_id,
+						    version->sub_vendor_id,
+						    version->impl_ver);
+	}
+
+	if (proto)
+		pr_info("Loaded SCMI Vendor Protocol 0x%x - %s %s %X\n",
+			protocol_id, proto->vendor_id ?: "",
+			proto->sub_vendor_id ?: "", proto->impl_ver);
+
+	return proto;
+}
+
+static const struct scmi_protocol *
 scmi_protocol_get(int protocol_id, struct scmi_revision_info *version)
 {
 	const struct scmi_protocol *proto = NULL;
@@ -283,10 +324,8 @@ scmi_protocol_get(int protocol_id, struct scmi_revision_info *version)
 	if (protocol_id < SCMI_PROTOCOL_VENDOR_BASE)
 		proto = xa_load(&scmi_protocols, protocol_id);
 	else
-		proto = scmi_vendor_protocol_lookup(protocol_id,
-						    version->vendor_id,
-						    version->sub_vendor_id,
-						    version->impl_ver);
+		proto = scmi_vendor_protocol_get(protocol_id, version);
+
 	if (!proto || !try_module_get(proto->owner)) {
 		pr_warn("SCMI Protocol 0x%x not found!\n", protocol_id);
 		return NULL;
@@ -294,11 +333,6 @@ scmi_protocol_get(int protocol_id, struct scmi_revision_info *version)
 
 	pr_debug("Found SCMI Protocol 0x%x\n", protocol_id);
 
-	if (protocol_id >= SCMI_PROTOCOL_VENDOR_BASE)
-		pr_info("Loaded SCMI Vendor Protocol 0x%x - %s %s %X\n",
-			protocol_id, proto->vendor_id ?: "",
-			proto->sub_vendor_id ?: "", proto->impl_ver);
-
 	return proto;
 }
 
@@ -366,7 +400,9 @@ int scmi_protocol_register(const struct scmi_protocol *proto)
 		return ret;
 	}
 
-	pr_debug("Registered SCMI Protocol 0x%x\n", proto->id);
+	pr_debug("Registered SCMI Protocol 0x%x - %s  %s  0x%08X\n",
+		 proto->id, proto->vendor_id, proto->sub_vendor_id,
+		 proto->impl_ver);
 
 	return 0;
 }
@@ -3028,7 +3064,7 @@ static const struct scmi_desc *scmi_transport_setup(struct device *dev)
 	int ret;
 
 	trans = dev_get_platdata(dev);
-	if (!trans || !trans->desc || !trans->supplier || !trans->core_ops)
+	if (!trans || !trans->supplier || !trans->core_ops)
 		return NULL;
 
 	if (!device_link_add(dev, trans->supplier, DL_FLAG_AUTOREMOVE_CONSUMER)) {
@@ -3043,33 +3079,33 @@ static const struct scmi_desc *scmi_transport_setup(struct device *dev)
 	dev_info(dev, "Using %s\n", dev_driver_string(trans->supplier));
 
 	ret = of_property_read_u32(dev->of_node, "arm,max-rx-timeout-ms",
-				   &trans->desc->max_rx_timeout_ms);
+				   &trans->desc.max_rx_timeout_ms);
 	if (ret && ret != -EINVAL)
 		dev_err(dev, "Malformed arm,max-rx-timeout-ms DT property.\n");
 
 	ret = of_property_read_u32(dev->of_node, "arm,max-msg-size",
-				   &trans->desc->max_msg_size);
+				   &trans->desc.max_msg_size);
 	if (ret && ret != -EINVAL)
 		dev_err(dev, "Malformed arm,max-msg-size DT property.\n");
 
 	ret = of_property_read_u32(dev->of_node, "arm,max-msg",
-				   &trans->desc->max_msg);
+				   &trans->desc.max_msg);
 	if (ret && ret != -EINVAL)
 		dev_err(dev, "Malformed arm,max-msg DT property.\n");
 
 	dev_info(dev,
 		 "SCMI max-rx-timeout: %dms / max-msg-size: %dbytes / max-msg: %d\n",
-		 trans->desc->max_rx_timeout_ms, trans->desc->max_msg_size,
-		 trans->desc->max_msg);
+		 trans->desc.max_rx_timeout_ms, trans->desc.max_msg_size,
+		 trans->desc.max_msg);
 
 	/* System wide atomic threshold for atomic ops .. if any */
 	if (!of_property_read_u32(dev->of_node, "atomic-threshold-us",
-				  &trans->desc->atomic_threshold))
+				  &trans->desc.atomic_threshold))
 		dev_info(dev,
 			 "SCMI System wide atomic threshold set to %u us\n",
-			 trans->desc->atomic_threshold);
+			 trans->desc.atomic_threshold);
 
-	return trans->desc;
+	return &trans->desc;
 }
 
 static int scmi_probe(struct platform_device *pdev)

drivers/firmware/arm_scmi/transports/mailbox.c

View file

diff --git a/drivers/firmware/arm_scmi/transports/mailbox.c b/drivers/firmware/arm_scmi/transports/mailbox.c
index b66df29..bd041c9 100644
--- a/drivers/firmware/arm_scmi/transports/mailbox.c
+++ b/drivers/firmware/arm_scmi/transports/mailbox.c
@@ -378,6 +378,7 @@ static const struct of_device_id scmi_of_match[] = {
 	{ .compatible = "arm,scmi" },
 	{ /* Sentinel */ },
 };
+MODULE_DEVICE_TABLE(of, scmi_of_match);
 
 DEFINE_SCMI_TRANSPORT_DRIVER(scmi_mailbox, scmi_mailbox_driver,
 			     scmi_mailbox_desc, scmi_of_match, core);

drivers/firmware/arm_scmi/transports/smc.c

View file

diff --git a/drivers/firmware/arm_scmi/transports/smc.c b/drivers/firmware/arm_scmi/transports/smc.c
index f632a62..21abb57 100644
--- a/drivers/firmware/arm_scmi/transports/smc.c
+++ b/drivers/firmware/arm_scmi/transports/smc.c
@@ -301,6 +301,7 @@ static const struct of_device_id scmi_of_match[] = {
 	{ .compatible = "qcom,scmi-smc" },
 	{ /* Sentinel */ },
 };
+MODULE_DEVICE_TABLE(of, scmi_of_match);
 
 DEFINE_SCMI_TRANSPORT_DRIVER(scmi_smc, scmi_smc_driver, scmi_smc_desc,
 			     scmi_of_match, core);

drivers/firmware/arm_scmi/transports/virtio.c

View file

diff --git a/drivers/firmware/arm_scmi/transports/virtio.c b/drivers/firmware/arm_scmi/transports/virtio.c
index 41aea33..cb934db 100644
--- a/drivers/firmware/arm_scmi/transports/virtio.c
+++ b/drivers/firmware/arm_scmi/transports/virtio.c
@@ -921,6 +921,7 @@ static const struct virtio_device_id id_table[] = {
 	{ VIRTIO_ID_SCMI, VIRTIO_DEV_ANY_ID },
 	{ 0 }
 };
+MODULE_DEVICE_TABLE(virtio, id_table);
 
 static struct virtio_driver virtio_scmi_driver = {
 	.driver.name = "scmi-virtio",

drivers/firmware/arm_scmi/vendors/imx/imx-sm-bbm.c

View file

diff --git a/drivers/firmware/arm_scmi/vendors/imx/imx-sm-bbm.c b/drivers/firmware/arm_scmi/vendors/imx/imx-sm-bbm.c
index 17799ea..aa176c1 100644
--- a/drivers/firmware/arm_scmi/vendors/imx/imx-sm-bbm.c
+++ b/drivers/firmware/arm_scmi/vendors/imx/imx-sm-bbm.c
@@ -374,10 +374,11 @@ static const struct scmi_protocol scmi_imx_bbm = {
 	.ops = &scmi_imx_bbm_proto_ops,
 	.events = &scmi_imx_bbm_protocol_events,
 	.supported_version = SCMI_PROTOCOL_SUPPORTED_VERSION,
-	.vendor_id = "NXP",
-	.sub_vendor_id = "IMX",
+	.vendor_id = SCMI_IMX_VENDOR,
+	.sub_vendor_id = SCMI_IMX_SUBVENDOR,
 };
 module_scmi_protocol(scmi_imx_bbm);
 
+MODULE_ALIAS("scmi-protocol-" __stringify(SCMI_PROTOCOL_IMX_BBM) "-" SCMI_IMX_VENDOR);
 MODULE_DESCRIPTION("i.MX SCMI BBM driver");
 MODULE_LICENSE("GPL");

drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c

View file

diff --git a/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c b/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c
index a86ab9b..83b69fc 100644
--- a/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c
+++ b/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c
@@ -309,10 +309,11 @@ static const struct scmi_protocol scmi_imx_misc = {
 	.ops = &scmi_imx_misc_proto_ops,
 	.events = &scmi_imx_misc_protocol_events,
 	.supported_version = SCMI_PROTOCOL_SUPPORTED_VERSION,
-	.vendor_id = "NXP",
-	.sub_vendor_id = "IMX",
+	.vendor_id = SCMI_IMX_VENDOR,
+	.sub_vendor_id = SCMI_IMX_SUBVENDOR,
 };
 module_scmi_protocol(scmi_imx_misc);
 
+MODULE_ALIAS("scmi-protocol-" __stringify(SCMI_PROTOCOL_IMX_MISC) "-" SCMI_IMX_VENDOR);
 MODULE_DESCRIPTION("i.MX SCMI MISC driver");
 MODULE_LICENSE("GPL");

drivers/firmware/qcom/qcom_scm-smc.c

View file

diff --git a/drivers/firmware/qcom/qcom_scm-smc.c b/drivers/firmware/qcom/qcom_scm-smc.c
index 2b4c282..5749307 100644
--- a/drivers/firmware/qcom/qcom_scm-smc.c
+++ b/drivers/firmware/qcom/qcom_scm-smc.c
@@ -152,7 +152,6 @@ int __scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc,
 		   enum qcom_scm_convention qcom_convention,
 		   struct qcom_scm_res *res, bool atomic)
 {
-	struct qcom_tzmem_pool *mempool = qcom_scm_get_tzmem_pool();
 	int arglen = desc->arginfo & 0xf;
 	int i, ret;
 	void *args_virt __free(qcom_tzmem) = NULL;
@@ -173,6 +172,11 @@ int __scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc,
 		smc.args[i + SCM_SMC_FIRST_REG_IDX] = desc->args[i];
 
 	if (unlikely(arglen > SCM_SMC_N_REG_ARGS)) {
+		struct qcom_tzmem_pool *mempool = qcom_scm_get_tzmem_pool();
+
+		if (!mempool)
+			return -EINVAL;
+
 		args_virt = qcom_tzmem_alloc(mempool,
 					     SCM_SMC_N_EXT_ARGS * sizeof(u64),
 					     flag);

drivers/firmware/qcom/qcom_scm.c

View file

diff --git a/drivers/firmware/qcom/qcom_scm.c b/drivers/firmware/qcom/qcom_scm.c
index 72bf87d..f0569bb 100644
--- a/drivers/firmware/qcom/qcom_scm.c
+++ b/drivers/firmware/qcom/qcom_scm.c
@@ -217,7 +217,10 @@ static DEFINE_SPINLOCK(scm_query_lock);
 
 struct qcom_tzmem_pool *qcom_scm_get_tzmem_pool(void)
 {
-	return __scm ? __scm->mempool : NULL;
+	if (!qcom_scm_is_available())
+		return NULL;
+
+	return __scm->mempool;
 }
 
 static enum qcom_scm_convention __get_convention(void)
@@ -1279,6 +1282,220 @@ int qcom_scm_ice_set_key(u32 index, const u8 *key, u32 key_size,
 }
 EXPORT_SYMBOL_GPL(qcom_scm_ice_set_key);
 
+bool qcom_scm_has_wrapped_key_support(void)
+{
+	return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_ES,
+					    QCOM_SCM_ES_DERIVE_SW_SECRET) &&
+	       __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_ES,
+					    QCOM_SCM_ES_GENERATE_ICE_KEY) &&
+	       __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_ES,
+					    QCOM_SCM_ES_PREPARE_ICE_KEY) &&
+	       __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_ES,
+					    QCOM_SCM_ES_IMPORT_ICE_KEY);
+}
+EXPORT_SYMBOL_GPL(qcom_scm_has_wrapped_key_support);
+
+/**
+ * qcom_scm_derive_sw_secret() - Derive software secret from wrapped key
+ * @eph_key: an ephemerally-wrapped key
+ * @eph_key_size: size of @eph_key in bytes
+ * @sw_secret: output buffer for the software secret
+ * @sw_secret_size: size of the software secret to derive in bytes
+ *
+ * Derive a software secret from an ephemerally-wrapped key for software crypto
+ * operations.  This is done by calling into the secure execution environment,
+ * which then calls into the hardware to unwrap and derive the secret.
+ *
+ * For more information on sw_secret, see the "Hardware-wrapped keys" section of
+ * Documentation/block/inline-encryption.rst.
+ *
+ * Return: 0 on success; -errno on failure.
+ */
+int qcom_scm_derive_sw_secret(const u8 *eph_key, size_t eph_key_size,
+			      u8 *sw_secret, size_t sw_secret_size)
+{
+	struct qcom_scm_desc desc = {
+		.svc = QCOM_SCM_SVC_ES,
+		.cmd = QCOM_SCM_ES_DERIVE_SW_SECRET,
+		.arginfo = QCOM_SCM_ARGS(4, QCOM_SCM_RW, QCOM_SCM_VAL,
+					 QCOM_SCM_RW, QCOM_SCM_VAL),
+		.owner = ARM_SMCCC_OWNER_SIP,
+	};
+	int ret;
+
+	void *eph_key_buf __free(qcom_tzmem) = qcom_tzmem_alloc(__scm->mempool,
+								eph_key_size,
+								GFP_KERNEL);
+	if (!eph_key_buf)
+		return -ENOMEM;
+
+	void *sw_secret_buf __free(qcom_tzmem) = qcom_tzmem_alloc(__scm->mempool,
+								  sw_secret_size,
+								  GFP_KERNEL);
+	if (!sw_secret_buf)
+		return -ENOMEM;
+
+	memcpy(eph_key_buf, eph_key, eph_key_size);
+	desc.args[0] = qcom_tzmem_to_phys(eph_key_buf);
+	desc.args[1] = eph_key_size;
+	desc.args[2] = qcom_tzmem_to_phys(sw_secret_buf);
+	desc.args[3] = sw_secret_size;
+
+	ret = qcom_scm_call(__scm->dev, &desc, NULL);
+	if (!ret)
+		memcpy(sw_secret, sw_secret_buf, sw_secret_size);
+
+	memzero_explicit(eph_key_buf, eph_key_size);
+	memzero_explicit(sw_secret_buf, sw_secret_size);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(qcom_scm_derive_sw_secret);
+
+/**
+ * qcom_scm_generate_ice_key() - Generate a wrapped key for storage encryption
+ * @lt_key: output buffer for the long-term wrapped key
+ * @lt_key_size: size of @lt_key in bytes.  Must be the exact wrapped key size
+ *		 used by the SoC.
+ *
+ * Generate a key using the built-in HW module in the SoC.  The resulting key is
+ * returned wrapped with the platform-specific Key Encryption Key.
+ *
+ * Return: 0 on success; -errno on failure.
+ */
+int qcom_scm_generate_ice_key(u8 *lt_key, size_t lt_key_size)
+{
+	struct qcom_scm_desc desc = {
+		.svc = QCOM_SCM_SVC_ES,
+		.cmd =  QCOM_SCM_ES_GENERATE_ICE_KEY,
+		.arginfo = QCOM_SCM_ARGS(2, QCOM_SCM_RW, QCOM_SCM_VAL),
+		.owner = ARM_SMCCC_OWNER_SIP,
+	};
+	int ret;
+
+	void *lt_key_buf __free(qcom_tzmem) = qcom_tzmem_alloc(__scm->mempool,
+							       lt_key_size,
+							       GFP_KERNEL);
+	if (!lt_key_buf)
+		return -ENOMEM;
+
+	desc.args[0] = qcom_tzmem_to_phys(lt_key_buf);
+	desc.args[1] = lt_key_size;
+
+	ret = qcom_scm_call(__scm->dev, &desc, NULL);
+	if (!ret)
+		memcpy(lt_key, lt_key_buf, lt_key_size);
+
+	memzero_explicit(lt_key_buf, lt_key_size);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(qcom_scm_generate_ice_key);
+
+/**
+ * qcom_scm_prepare_ice_key() - Re-wrap a key with the per-boot ephemeral key
+ * @lt_key: a long-term wrapped key
+ * @lt_key_size: size of @lt_key in bytes
+ * @eph_key: output buffer for the ephemerally-wrapped key
+ * @eph_key_size: size of @eph_key in bytes.  Must be the exact wrapped key size
+ *		  used by the SoC.
+ *
+ * Given a long-term wrapped key, re-wrap it with the per-boot ephemeral key for
+ * added protection.  The resulting key will only be valid for the current boot.
+ *
+ * Return: 0 on success; -errno on failure.
+ */
+int qcom_scm_prepare_ice_key(const u8 *lt_key, size_t lt_key_size,
+			     u8 *eph_key, size_t eph_key_size)
+{
+	struct qcom_scm_desc desc = {
+		.svc = QCOM_SCM_SVC_ES,
+		.cmd =  QCOM_SCM_ES_PREPARE_ICE_KEY,
+		.arginfo = QCOM_SCM_ARGS(4, QCOM_SCM_RO, QCOM_SCM_VAL,
+					 QCOM_SCM_RW, QCOM_SCM_VAL),
+		.owner = ARM_SMCCC_OWNER_SIP,
+	};
+	int ret;
+
+	void *lt_key_buf __free(qcom_tzmem) = qcom_tzmem_alloc(__scm->mempool,
+							       lt_key_size,
+							       GFP_KERNEL);
+	if (!lt_key_buf)
+		return -ENOMEM;
+
+	void *eph_key_buf __free(qcom_tzmem) = qcom_tzmem_alloc(__scm->mempool,
+								eph_key_size,
+								GFP_KERNEL);
+	if (!eph_key_buf)
+		return -ENOMEM;
+
+	memcpy(lt_key_buf, lt_key, lt_key_size);
+	desc.args[0] = qcom_tzmem_to_phys(lt_key_buf);
+	desc.args[1] = lt_key_size;
+	desc.args[2] = qcom_tzmem_to_phys(eph_key_buf);
+	desc.args[3] = eph_key_size;
+
+	ret = qcom_scm_call(__scm->dev, &desc, NULL);
+	if (!ret)
+		memcpy(eph_key, eph_key_buf, eph_key_size);
+
+	memzero_explicit(lt_key_buf, lt_key_size);
+	memzero_explicit(eph_key_buf, eph_key_size);
+	return ret;
+}