mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-20 14:13:16 +00:00
b4c02c9998
Removed upstreamed patches:
generic/pending-5.4
445-mtd-spinand-gigadevice-Only-one-dummy-byte-in-QUA.patch
446-mtd-spinand-gigadevice-Add-QE-Bit.patch
pistachio/patches-5.4
150-pwm-img-Fix-null-pointer-access-in-probe.patch
Manually rebased:
layerscape/patches-5.4
801-audio-0011-Revert-ASoC-fsl_sai-add-of_match-data.patch
801-audio-0039-MLK-16224-6-ASoC-fsl_sai-fix-DSD-suspend-resume.patch
801-audio-0073-MLK-21957-3-ASoC-fsl_sai-add-bitcount-and-timestamp-.patch
820-usb-0009-usb-dwc3-Add-workaround-for-host-mode-VBUS-glitch-wh.patch
All modifications made by update_kernel.sh
Build system: x86_64
Build-tested: ipq806x/R7800, ath79/generic, bcm27xx/bcm2711,
mvebu (mamba, rango), x86_64, ramips/mt7621
Run-tested: ipq806x/R7800, mvebu (mamba, rango), x86_64, ramips (RT-AC57U)
No dmesg regressions, everything functional
Signed-off-by: John Audia <graysky@archlinux.us>
[alter 820-usb-0009-usb-dwc3-Add-workaround-for-host-mode-VBUS-glitch-wh]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
275 lines
7.6 KiB
Diff
275 lines
7.6 KiB
Diff
From 1286c9b10f76b122ad1b328cc1bec17ac4d5908e Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Horia=20Geant=C4=83?= <horia.geanta@nxp.com>
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Date: Wed, 13 Nov 2019 09:42:34 +0200
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Subject: [PATCH] LFV-26 crypto: caam - fix Secure Memory driver init
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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SM driver is buggy, since it runs irrespective of the presence of
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the caam-sm DT node.
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This causes issues on SoCs that have caam HW, but without support
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for secure memory.
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Let's transform the module in a library, in the same way (and for
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the same reasons) we did for the other job ring-dependent drivers
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(caamalg, caamhash etc.) in
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commit 1b46c90c8e00 ("crypto: caam - convert top level drivers to libraries")
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SM test module is also updated, to run only when needed.
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Fixes: 54e3fcf89f97 ("MLKU-25-3 crypto: caam - add Secure Memory support")
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Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
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Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
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---
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drivers/crypto/caam/Kconfig | 2 +-
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drivers/crypto/caam/ctrl.c | 2 ++
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drivers/crypto/caam/intern.h | 19 ++++++++++
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drivers/crypto/caam/jr.c | 6 ++--
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drivers/crypto/caam/sm.h | 1 -
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drivers/crypto/caam/sm_store.c | 80 +++++-------------------------------------
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drivers/crypto/caam/sm_test.c | 7 ++++
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7 files changed, 42 insertions(+), 75 deletions(-)
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--- a/drivers/crypto/caam/Kconfig
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+++ b/drivers/crypto/caam/Kconfig
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@@ -167,7 +167,7 @@ config CRYPTO_DEV_FSL_CAAM_RNG_TEST
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just before the RNG is registered with the hw_random API.
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config CRYPTO_DEV_FSL_CAAM_SM
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- tristate "CAAM Secure Memory / Keystore API (EXPERIMENTAL)"
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+ bool "CAAM Secure Memory / Keystore API (EXPERIMENTAL)"
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help
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Enables use of a prototype kernel-level Keystore API with CAAM
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Secure Memory for insertion/extraction of bus-protected secrets.
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--- a/drivers/crypto/caam/ctrl.c
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+++ b/drivers/crypto/caam/ctrl.c
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@@ -763,6 +763,8 @@ iomap_ctrl:
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ctrlpriv->sm_size = resource_size(&res_regs);
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else
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ctrlpriv->sm_size = PG_SIZE_64K;
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+
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+ ctrlpriv->sm_present = 1;
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of_node_put(np);
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if (!reg_access)
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--- a/drivers/crypto/caam/intern.h
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+++ b/drivers/crypto/caam/intern.h
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@@ -86,6 +86,7 @@ struct caam_drv_private {
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*/
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u8 total_jobrs; /* Total Job Rings in device */
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u8 qi_present; /* Nonzero if QI present in device */
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+ u8 sm_present; /* Nonzero if Secure Memory is supported */
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u8 mc_en; /* Nonzero if MC f/w is active */
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u8 scu_en; /* Nonzero if SCU f/w is active */
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u8 optee_en; /* Nonzero if OP-TEE f/w is active */
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@@ -200,6 +201,24 @@ static inline void caam_qi_algapi_exit(v
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#endif /* CONFIG_CAAM_QI */
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+#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_SM
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+
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+int caam_sm_startup(struct device *dev);
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+void caam_sm_shutdown(struct device *dev);
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+
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+#else
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+
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+static inline int caam_sm_startup(struct device *dev)
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+{
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+ return 0;
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+}
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+
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+static inline void caam_sm_shutdown(struct device *dev)
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+{
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+}
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+
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+#endif /* CONFIG_CRYPTO_DEV_FSL_CAAM_SM */
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+
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#ifdef CONFIG_DEBUG_FS
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static int caam_debugfs_u64_get(void *data, u64 *val)
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{
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--- a/drivers/crypto/caam/jr.c
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+++ b/drivers/crypto/caam/jr.c
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@@ -34,6 +34,7 @@ static void register_algs(struct device
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if (++active_devs != 1)
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goto algs_unlock;
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+ caam_sm_startup(dev);
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caam_algapi_init(dev);
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caam_algapi_hash_init(dev);
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caam_pkc_init(dev);
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@@ -44,7 +45,7 @@ algs_unlock:
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mutex_unlock(&algs_lock);
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}
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-static void unregister_algs(void)
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+static void unregister_algs(struct device *dev)
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{
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mutex_lock(&algs_lock);
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@@ -57,6 +58,7 @@ static void unregister_algs(void)
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caam_pkc_exit();
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caam_algapi_hash_exit();
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caam_algapi_exit();
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+ caam_sm_shutdown(dev);
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algs_unlock:
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mutex_unlock(&algs_lock);
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@@ -143,7 +145,7 @@ static int caam_jr_remove(struct platfor
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}
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/* Unregister JR-based RNG & crypto algorithms */
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- unregister_algs();
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+ unregister_algs(jrdev->parent);
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/* Remove the node from Physical JobR list maintained by driver */
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spin_lock(&driver_data.jr_alloc_lock);
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--- a/drivers/crypto/caam/sm.h
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+++ b/drivers/crypto/caam/sm.h
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@@ -41,7 +41,6 @@ void sm_init_keystore(struct device *dev
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u32 sm_detect_keystore_units(struct device *dev);
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int sm_establish_keystore(struct device *dev, u32 unit);
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void sm_release_keystore(struct device *dev, u32 unit);
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-void caam_sm_shutdown(struct platform_device *pdev);
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int caam_sm_example_init(struct platform_device *pdev);
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/* Keystore accessor functions */
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--- a/drivers/crypto/caam/sm_store.c
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+++ b/drivers/crypto/caam/sm_store.c
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@@ -1053,9 +1053,9 @@ EXPORT_SYMBOL(sm_keystore_slot_import);
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* Also, simply uses ring 0 for execution at the present
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*/
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-int caam_sm_startup(struct platform_device *pdev)
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+int caam_sm_startup(struct device *ctrldev)
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{
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- struct device *ctrldev, *smdev;
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+ struct device *smdev;
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struct caam_drv_private *ctrlpriv;
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struct caam_drv_private_sm *smpriv;
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struct caam_drv_private_jr *jrpriv; /* need this for reg page */
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@@ -1065,17 +1065,10 @@ int caam_sm_startup(struct platform_devi
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int ret = 0;
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struct device_node *np;
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- ctrldev = &pdev->dev;
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ctrlpriv = dev_get_drvdata(ctrldev);
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- /*
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- * If ctrlpriv is NULL, it's probably because the caam driver wasn't
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- * properly initialized (e.g. RNG4 init failed). Thus, bail out here.
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- */
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- if (!ctrlpriv) {
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- ret = -ENODEV;
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- goto exit;
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- }
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+ if (!ctrlpriv->sm_present)
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+ return 0;
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/*
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* Set up the private block for secure memory
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@@ -1248,14 +1241,16 @@ exit:
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return ret;
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}
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-void caam_sm_shutdown(struct platform_device *pdev)
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+void caam_sm_shutdown(struct device *ctrldev)
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{
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- struct device *ctrldev, *smdev;
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+ struct device *smdev;
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struct caam_drv_private *priv;
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struct caam_drv_private_sm *smpriv;
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- ctrldev = &pdev->dev;
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priv = dev_get_drvdata(ctrldev);
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+ if (!priv->sm_present)
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+ return;
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+
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smdev = priv->smdev;
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/* Return if resource not initialized by startup */
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@@ -1273,60 +1268,3 @@ void caam_sm_shutdown(struct platform_de
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kfree(smpriv);
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}
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EXPORT_SYMBOL(caam_sm_shutdown);
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-
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-static void __exit caam_sm_exit(void)
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-{
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- struct device_node *dev_node;
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- struct platform_device *pdev;
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-
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- dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
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- if (!dev_node) {
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- dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
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- if (!dev_node)
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- return;
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- }
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-
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- pdev = of_find_device_by_node(dev_node);
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- if (!pdev)
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- return;
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-
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- of_node_put(dev_node);
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-
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- caam_sm_shutdown(pdev);
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-
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- return;
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-}
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-
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-static int __init caam_sm_init(void)
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-{
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- struct device_node *dev_node;
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- struct platform_device *pdev;
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-
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- /*
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- * Do of_find_compatible_node() then of_find_device_by_node()
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- * once a functional device tree is available
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- */
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- dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
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- if (!dev_node) {
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- dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
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- if (!dev_node)
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- return -ENODEV;
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- }
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-
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- pdev = of_find_device_by_node(dev_node);
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- if (!pdev)
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- return -ENODEV;
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-
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- of_node_get(dev_node);
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-
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- caam_sm_startup(pdev);
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-
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- return 0;
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-}
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-
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-module_init(caam_sm_init);
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-module_exit(caam_sm_exit);
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-
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-MODULE_LICENSE("Dual BSD/GPL");
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-MODULE_DESCRIPTION("FSL CAAM Secure Memory / Keystore");
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-MODULE_AUTHOR("Freescale Semiconductor - NMSG/MAD");
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--- a/drivers/crypto/caam/sm_test.c
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+++ b/drivers/crypto/caam/sm_test.c
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@@ -531,6 +531,7 @@ static int __init caam_sm_test_init(void
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{
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struct device_node *dev_node;
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struct platform_device *pdev;
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+ struct caam_drv_private *priv;
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int ret;
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/*
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@@ -550,6 +551,12 @@ static int __init caam_sm_test_init(void
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of_node_put(dev_node);
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+ priv = dev_get_drvdata(&pdev->dev);
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+ if (!priv->sm_present) {
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+ dev_info(&pdev->dev, "No SM support, skipping tests\n");
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+ return -ENODEV;
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+ }
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+
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ret = caam_sm_example_init(pdev);
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if (ret)
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dev_err(&pdev->dev, "SM test failed: %d\n", ret);
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