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Diffstat (limited to 'target/linux/layerscape/patches-5.4/804-crypto-0033-LFV-26-crypto-caam-fix-Secure-Memory-driver-init.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/804-crypto-0033-LFV-26-crypto-caam-fix-Secure-Memory-driver-init.patch274
1 files changed, 0 insertions, 274 deletions
diff --git a/target/linux/layerscape/patches-5.4/804-crypto-0033-LFV-26-crypto-caam-fix-Secure-Memory-driver-init.patch b/target/linux/layerscape/patches-5.4/804-crypto-0033-LFV-26-crypto-caam-fix-Secure-Memory-driver-init.patch
deleted file mode 100644
index 53de880d75..0000000000
--- a/target/linux/layerscape/patches-5.4/804-crypto-0033-LFV-26-crypto-caam-fix-Secure-Memory-driver-init.patch
+++ /dev/null
@@ -1,274 +0,0 @@
-From 1286c9b10f76b122ad1b328cc1bec17ac4d5908e Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Horia=20Geant=C4=83?= <horia.geanta@nxp.com>
-Date: Wed, 13 Nov 2019 09:42:34 +0200
-Subject: [PATCH] LFV-26 crypto: caam - fix Secure Memory driver init
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-SM driver is buggy, since it runs irrespective of the presence of
-the caam-sm DT node.
-This causes issues on SoCs that have caam HW, but without support
-for secure memory.
-
-Let's transform the module in a library, in the same way (and for
-the same reasons) we did for the other job ring-dependent drivers
-(caamalg, caamhash etc.) in
-commit 1b46c90c8e00 ("crypto: caam - convert top level drivers to libraries")
-
-SM test module is also updated, to run only when needed.
-
-Fixes: 54e3fcf89f97 ("MLKU-25-3 crypto: caam - add Secure Memory support")
-Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
-Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
----
- drivers/crypto/caam/Kconfig | 2 +-
- drivers/crypto/caam/ctrl.c | 2 ++
- drivers/crypto/caam/intern.h | 19 ++++++++++
- drivers/crypto/caam/jr.c | 6 ++--
- drivers/crypto/caam/sm.h | 1 -
- drivers/crypto/caam/sm_store.c | 80 +++++-------------------------------------
- drivers/crypto/caam/sm_test.c | 7 ++++
- 7 files changed, 42 insertions(+), 75 deletions(-)
-
---- a/drivers/crypto/caam/Kconfig
-+++ b/drivers/crypto/caam/Kconfig
-@@ -167,7 +167,7 @@ config CRYPTO_DEV_FSL_CAAM_RNG_TEST
- just before the RNG is registered with the hw_random API.
-
- config CRYPTO_DEV_FSL_CAAM_SM
-- tristate "CAAM Secure Memory / Keystore API (EXPERIMENTAL)"
-+ bool "CAAM Secure Memory / Keystore API (EXPERIMENTAL)"
- help
- Enables use of a prototype kernel-level Keystore API with CAAM
- Secure Memory for insertion/extraction of bus-protected secrets.
---- a/drivers/crypto/caam/ctrl.c
-+++ b/drivers/crypto/caam/ctrl.c
-@@ -763,6 +763,8 @@ iomap_ctrl:
- ctrlpriv->sm_size = resource_size(&res_regs);
- else
- ctrlpriv->sm_size = PG_SIZE_64K;
-+
-+ ctrlpriv->sm_present = 1;
- of_node_put(np);
-
- if (!reg_access)
---- a/drivers/crypto/caam/intern.h
-+++ b/drivers/crypto/caam/intern.h
-@@ -86,6 +86,7 @@ struct caam_drv_private {
- */
- u8 total_jobrs; /* Total Job Rings in device */
- u8 qi_present; /* Nonzero if QI present in device */
-+ u8 sm_present; /* Nonzero if Secure Memory is supported */
- u8 mc_en; /* Nonzero if MC f/w is active */
- u8 scu_en; /* Nonzero if SCU f/w is active */
- u8 optee_en; /* Nonzero if OP-TEE f/w is active */
-@@ -200,6 +201,24 @@ static inline void caam_qi_algapi_exit(v
-
- #endif /* CONFIG_CAAM_QI */
-
-+#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_SM
-+
-+int caam_sm_startup(struct device *dev);
-+void caam_sm_shutdown(struct device *dev);
-+
-+#else
-+
-+static inline int caam_sm_startup(struct device *dev)
-+{
-+ return 0;
-+}
-+
-+static inline void caam_sm_shutdown(struct device *dev)
-+{
-+}
-+
-+#endif /* CONFIG_CRYPTO_DEV_FSL_CAAM_SM */
-+
- #ifdef CONFIG_DEBUG_FS
- static int caam_debugfs_u64_get(void *data, u64 *val)
- {
---- a/drivers/crypto/caam/jr.c
-+++ b/drivers/crypto/caam/jr.c
-@@ -34,6 +34,7 @@ static void register_algs(struct device
- if (++active_devs != 1)
- goto algs_unlock;
-
-+ caam_sm_startup(dev);
- caam_algapi_init(dev);
- caam_algapi_hash_init(dev);
- caam_pkc_init(dev);
-@@ -44,7 +45,7 @@ algs_unlock:
- mutex_unlock(&algs_lock);
- }
-
--static void unregister_algs(void)
-+static void unregister_algs(struct device *dev)
- {
- mutex_lock(&algs_lock);
-
-@@ -57,6 +58,7 @@ static void unregister_algs(void)
- caam_pkc_exit();
- caam_algapi_hash_exit();
- caam_algapi_exit();
-+ caam_sm_shutdown(dev);
-
- algs_unlock:
- mutex_unlock(&algs_lock);
-@@ -143,7 +145,7 @@ static int caam_jr_remove(struct platfor
- }
-
- /* Unregister JR-based RNG & crypto algorithms */
-- unregister_algs();
-+ unregister_algs(jrdev->parent);
-
- /* Remove the node from Physical JobR list maintained by driver */
- spin_lock(&driver_data.jr_alloc_lock);
---- a/drivers/crypto/caam/sm.h
-+++ b/drivers/crypto/caam/sm.h
-@@ -41,7 +41,6 @@ void sm_init_keystore(struct device *dev
- u32 sm_detect_keystore_units(struct device *dev);
- int sm_establish_keystore(struct device *dev, u32 unit);
- void sm_release_keystore(struct device *dev, u32 unit);
--void caam_sm_shutdown(struct platform_device *pdev);
- int caam_sm_example_init(struct platform_device *pdev);
-
- /* Keystore accessor functions */
---- a/drivers/crypto/caam/sm_store.c
-+++ b/drivers/crypto/caam/sm_store.c
-@@ -1053,9 +1053,9 @@ EXPORT_SYMBOL(sm_keystore_slot_import);
- * Also, simply uses ring 0 for execution at the present
- */
-
--int caam_sm_startup(struct platform_device *pdev)
-+int caam_sm_startup(struct device *ctrldev)
- {
-- struct device *ctrldev, *smdev;
-+ struct device *smdev;
- struct caam_drv_private *ctrlpriv;
- struct caam_drv_private_sm *smpriv;
- struct caam_drv_private_jr *jrpriv; /* need this for reg page */
-@@ -1065,17 +1065,10 @@ int caam_sm_startup(struct platform_devi
- int ret = 0;
-
- struct device_node *np;
-- ctrldev = &pdev->dev;
- ctrlpriv = dev_get_drvdata(ctrldev);
-
-- /*
-- * If ctrlpriv is NULL, it's probably because the caam driver wasn't
-- * properly initialized (e.g. RNG4 init failed). Thus, bail out here.
-- */
-- if (!ctrlpriv) {
-- ret = -ENODEV;
-- goto exit;
-- }
-+ if (!ctrlpriv->sm_present)
-+ return 0;
-
- /*
- * Set up the private block for secure memory
-@@ -1248,14 +1241,16 @@ exit:
- return ret;
- }
-
--void caam_sm_shutdown(struct platform_device *pdev)
-+void caam_sm_shutdown(struct device *ctrldev)
- {
-- struct device *ctrldev, *smdev;
-+ struct device *smdev;
- struct caam_drv_private *priv;
- struct caam_drv_private_sm *smpriv;
-
-- ctrldev = &pdev->dev;
- priv = dev_get_drvdata(ctrldev);
-+ if (!priv->sm_present)
-+ return;
-+
- smdev = priv->smdev;
-
- /* Return if resource not initialized by startup */
-@@ -1273,60 +1268,3 @@ void caam_sm_shutdown(struct platform_de
- kfree(smpriv);
- }
- EXPORT_SYMBOL(caam_sm_shutdown);
--
--static void __exit caam_sm_exit(void)
--{
-- struct device_node *dev_node;
-- struct platform_device *pdev;
--
-- dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
-- if (!dev_node) {
-- dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
-- if (!dev_node)
-- return;
-- }
--
-- pdev = of_find_device_by_node(dev_node);
-- if (!pdev)
-- return;
--
-- of_node_put(dev_node);
--
-- caam_sm_shutdown(pdev);
--
-- return;
--}
--
--static int __init caam_sm_init(void)
--{
-- struct device_node *dev_node;
-- struct platform_device *pdev;
--
-- /*
-- * Do of_find_compatible_node() then of_find_device_by_node()
-- * once a functional device tree is available
-- */
-- dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
-- if (!dev_node) {
-- dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
-- if (!dev_node)
-- return -ENODEV;
-- }
--
-- pdev = of_find_device_by_node(dev_node);
-- if (!pdev)
-- return -ENODEV;
--
-- of_node_get(dev_node);
--
-- caam_sm_startup(pdev);
--
-- return 0;
--}
--
--module_init(caam_sm_init);
--module_exit(caam_sm_exit);
--
--MODULE_LICENSE("Dual BSD/GPL");
--MODULE_DESCRIPTION("FSL CAAM Secure Memory / Keystore");
--MODULE_AUTHOR("Freescale Semiconductor - NMSG/MAD");
---- a/drivers/crypto/caam/sm_test.c
-+++ b/drivers/crypto/caam/sm_test.c
-@@ -531,6 +531,7 @@ static int __init caam_sm_test_init(void
- {
- struct device_node *dev_node;
- struct platform_device *pdev;
-+ struct caam_drv_private *priv;
- int ret;
-
- /*
-@@ -550,6 +551,12 @@ static int __init caam_sm_test_init(void
-
- of_node_put(dev_node);
-
-+ priv = dev_get_drvdata(&pdev->dev);
-+ if (!priv->sm_present) {
-+ dev_info(&pdev->dev, "No SM support, skipping tests\n");
-+ return -ENODEV;
-+ }
-+
- ret = caam_sm_example_init(pdev);
- if (ret)
- dev_err(&pdev->dev, "SM test failed: %d\n", ret);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 23:24:34 +0000