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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-14 21:31:09 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-14 21:31:09 +0100
commit64e7003c6b85626a533a67c1ba938b75a3db24e6 (patch)
tree5e3e776d23a9520f51251b4838d4aa66d920dbff /drivers/char
parentMerge tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff)
parentcrypto: ux500/cryp - delete driver (diff)
downloadlinux-64e7003c6b85626a533a67c1ba938b75a3db24e6.tar.xz
linux-64e7003c6b85626a533a67c1ba938b75a3db24e6.zip
Merge tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - Optimise away self-test overhead when they are disabled - Support symmetric encryption via keyring keys in af_alg - Flip hwrng default_quality, the default is now maximum entropy Algorithms: - Add library version of aesgcm - CFI fixes for assembly code - Add arm/arm64 accelerated versions of sm3/sm4 Drivers: - Remove assumption on arm64 that kmalloc is DMA-aligned - Fix selftest failures in rockchip - Add support for RK3328/RK3399 in rockchip - Add deflate support in qat - Merge ux500 into stm32 - Add support for TEE for PCI ID 0x14CA in ccp - Add mt7986 support in mtk - Add MaxLinear platform support in inside-secure - Add NPCM8XX support in npcm" * tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (184 commits) crypto: ux500/cryp - delete driver crypto: stm32/cryp - enable for use with Ux500 crypto: stm32 - enable drivers to be used on Ux500 dt-bindings: crypto: Let STM32 define Ux500 CRYP hwrng: geode - Fix PCI device refcount leak hwrng: amd - Fix PCI device refcount leak crypto: qce - Set DMA alignment explicitly crypto: octeontx2 - Set DMA alignment explicitly crypto: octeontx - Set DMA alignment explicitly crypto: keembay - Set DMA alignment explicitly crypto: safexcel - Set DMA alignment explicitly crypto: hisilicon/hpre - Set DMA alignment explicitly crypto: chelsio - Set DMA alignment explicitly crypto: ccree - Set DMA alignment explicitly crypto: ccp - Set DMA alignment explicitly crypto: cavium - Set DMA alignment explicitly crypto: img-hash - Fix variable dereferenced before check 'hdev->req' crypto: arm64/ghash-ce - use frame_push/pop macros consistently crypto: arm64/crct10dif - use frame_push/pop macros consistently crypto: arm64/aes-modes - use frame_push/pop macros consistently ...
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/hw_random/amd-rng.c18
-rw-r--r--drivers/char/hw_random/cavium-rng-vf.c1
-rw-r--r--drivers/char/hw_random/cn10k-rng.c1
-rw-r--r--drivers/char/hw_random/core.c9
-rw-r--r--drivers/char/hw_random/geode-rng.c36
-rw-r--r--drivers/char/hw_random/mpfs-rng.c1
-rw-r--r--drivers/char/hw_random/mtk-rng.c5
-rw-r--r--drivers/char/hw_random/npcm-rng.c15
-rw-r--r--drivers/char/hw_random/s390-trng.c1
-rw-r--r--drivers/char/hw_random/stm32-rng.c8
-rw-r--r--drivers/char/hw_random/timeriomem-rng.c2
-rw-r--r--drivers/char/hw_random/virtio-rng.c1
12 files changed, 62 insertions, 36 deletions
diff --git a/drivers/char/hw_random/amd-rng.c b/drivers/char/hw_random/amd-rng.c
index c22d4184bb61..0555e3838bce 100644
--- a/drivers/char/hw_random/amd-rng.c
+++ b/drivers/char/hw_random/amd-rng.c
@@ -143,15 +143,19 @@ static int __init amd_rng_mod_init(void)
found:
err = pci_read_config_dword(pdev, 0x58, &pmbase);
if (err)
- return err;
+ goto put_dev;
pmbase &= 0x0000FF00;
- if (pmbase == 0)
- return -EIO;
+ if (pmbase == 0) {
+ err = -EIO;
+ goto put_dev;
+ }
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
+ if (!priv) {
+ err = -ENOMEM;
+ goto put_dev;
+ }
if (!request_region(pmbase + PMBASE_OFFSET, PMBASE_SIZE, DRV_NAME)) {
dev_err(&pdev->dev, DRV_NAME " region 0x%x already in use!\n",
@@ -185,6 +189,8 @@ err_iomap:
release_region(pmbase + PMBASE_OFFSET, PMBASE_SIZE);
out:
kfree(priv);
+put_dev:
+ pci_dev_put(pdev);
return err;
}
@@ -200,6 +206,8 @@ static void __exit amd_rng_mod_exit(void)
release_region(priv->pmbase + PMBASE_OFFSET, PMBASE_SIZE);
+ pci_dev_put(priv->pcidev);
+
kfree(priv);
}
diff --git a/drivers/char/hw_random/cavium-rng-vf.c b/drivers/char/hw_random/cavium-rng-vf.c
index 7c55f4cf4a8b..c99c54cd99c6 100644
--- a/drivers/char/hw_random/cavium-rng-vf.c
+++ b/drivers/char/hw_random/cavium-rng-vf.c
@@ -225,7 +225,6 @@ static int cavium_rng_probe_vf(struct pci_dev *pdev,
return -ENOMEM;
rng->ops.read = cavium_rng_read;
- rng->ops.quality = 1000;
pci_set_drvdata(pdev, rng);
diff --git a/drivers/char/hw_random/cn10k-rng.c b/drivers/char/hw_random/cn10k-rng.c
index a01e9307737c..c1193f85982c 100644
--- a/drivers/char/hw_random/cn10k-rng.c
+++ b/drivers/char/hw_random/cn10k-rng.c
@@ -145,7 +145,6 @@ static int cn10k_rng_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return -ENOMEM;
rng->ops.read = cn10k_rng_read;
- rng->ops.quality = 1000;
rng->ops.priv = (unsigned long)rng;
reset_rng_health_state(rng);
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 63a0a8e4505d..f34d356fe2c0 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -41,14 +41,14 @@ static DEFINE_MUTEX(reading_mutex);
static int data_avail;
static u8 *rng_buffer, *rng_fillbuf;
static unsigned short current_quality;
-static unsigned short default_quality; /* = 0; default to "off" */
+static unsigned short default_quality = 1024; /* default to maximum */
module_param(current_quality, ushort, 0644);
MODULE_PARM_DESC(current_quality,
"current hwrng entropy estimation per 1024 bits of input -- obsolete, use rng_quality instead");
module_param(default_quality, ushort, 0644);
MODULE_PARM_DESC(default_quality,
- "default entropy content of hwrng per 1024 bits of input");
+ "default maximum entropy content of hwrng per 1024 bits of input");
static void drop_current_rng(void);
static int hwrng_init(struct hwrng *rng);
@@ -172,10 +172,7 @@ static int hwrng_init(struct hwrng *rng)
reinit_completion(&rng->cleanup_done);
skip_init:
- if (!rng->quality)
- rng->quality = default_quality;
- if (rng->quality > 1024)
- rng->quality = 1024;
+ rng->quality = min_t(u16, min_t(u16, default_quality, 1024), rng->quality ?: 1024);
current_quality = rng->quality; /* obsolete */
return 0;
diff --git a/drivers/char/hw_random/geode-rng.c b/drivers/char/hw_random/geode-rng.c
index 138ce434f86b..12fbe8091831 100644
--- a/drivers/char/hw_random/geode-rng.c
+++ b/drivers/char/hw_random/geode-rng.c
@@ -51,6 +51,10 @@ static const struct pci_device_id pci_tbl[] = {
};
MODULE_DEVICE_TABLE(pci, pci_tbl);
+struct amd_geode_priv {
+ struct pci_dev *pcidev;
+ void __iomem *membase;
+};
static int geode_rng_data_read(struct hwrng *rng, u32 *data)
{
@@ -90,6 +94,7 @@ static int __init geode_rng_init(void)
const struct pci_device_id *ent;
void __iomem *mem;
unsigned long rng_base;
+ struct amd_geode_priv *priv;
for_each_pci_dev(pdev) {
ent = pci_match_id(pci_tbl, pdev);
@@ -97,17 +102,26 @@ static int __init geode_rng_init(void)
goto found;
}
/* Device not found. */
- goto out;
+ return err;
found:
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ err = -ENOMEM;
+ goto put_dev;
+ }
+
rng_base = pci_resource_start(pdev, 0);
if (rng_base == 0)
- goto out;
+ goto free_priv;
err = -ENOMEM;
mem = ioremap(rng_base, 0x58);
if (!mem)
- goto out;
- geode_rng.priv = (unsigned long)mem;
+ goto free_priv;
+
+ geode_rng.priv = (unsigned long)priv;
+ priv->membase = mem;
+ priv->pcidev = pdev;
pr_info("AMD Geode RNG detected\n");
err = hwrng_register(&geode_rng);
@@ -116,20 +130,26 @@ found:
err);
goto err_unmap;
}
-out:
return err;
err_unmap:
iounmap(mem);
- goto out;
+free_priv:
+ kfree(priv);
+put_dev:
+ pci_dev_put(pdev);
+ return err;
}
static void __exit geode_rng_exit(void)
{
- void __iomem *mem = (void __iomem *)geode_rng.priv;
+ struct amd_geode_priv *priv;
+ priv = (struct amd_geode_priv *)geode_rng.priv;
hwrng_unregister(&geode_rng);
- iounmap(mem);
+ iounmap(priv->membase);
+ pci_dev_put(priv->pcidev);
+ kfree(priv);
}
module_init(geode_rng_init);
diff --git a/drivers/char/hw_random/mpfs-rng.c b/drivers/char/hw_random/mpfs-rng.c
index 5813da617a48..c6972734ae62 100644
--- a/drivers/char/hw_random/mpfs-rng.c
+++ b/drivers/char/hw_random/mpfs-rng.c
@@ -78,7 +78,6 @@ static int mpfs_rng_probe(struct platform_device *pdev)
rng_priv->rng.read = mpfs_rng_read;
rng_priv->rng.name = pdev->name;
- rng_priv->rng.quality = 1024;
platform_set_drvdata(pdev, rng_priv);
diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c
index 6c00ea008555..aa993753ab12 100644
--- a/drivers/char/hw_random/mtk-rng.c
+++ b/drivers/char/hw_random/mtk-rng.c
@@ -22,7 +22,7 @@
#define RNG_AUTOSUSPEND_TIMEOUT 100
#define USEC_POLL 2
-#define TIMEOUT_POLL 20
+#define TIMEOUT_POLL 60
#define RNG_CTRL 0x00
#define RNG_EN BIT(0)
@@ -77,7 +77,7 @@ static bool mtk_rng_wait_ready(struct hwrng *rng, bool wait)
readl_poll_timeout_atomic(priv->base + RNG_CTRL, ready,
ready & RNG_READY, USEC_POLL,
TIMEOUT_POLL);
- return !!ready;
+ return !!(ready & RNG_READY);
}
static int mtk_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
@@ -179,6 +179,7 @@ static const struct dev_pm_ops mtk_rng_pm_ops = {
#endif /* CONFIG_PM */
static const struct of_device_id mtk_rng_match[] = {
+ { .compatible = "mediatek,mt7986-rng" },
{ .compatible = "mediatek,mt7623-rng" },
{},
};
diff --git a/drivers/char/hw_random/npcm-rng.c b/drivers/char/hw_random/npcm-rng.c
index 1ec5f267a656..9903d0357e06 100644
--- a/drivers/char/hw_random/npcm-rng.c
+++ b/drivers/char/hw_random/npcm-rng.c
@@ -13,11 +13,13 @@
#include <linux/delay.h>
#include <linux/of_irq.h>
#include <linux/pm_runtime.h>
+#include <linux/of_device.h>
#define NPCM_RNGCS_REG 0x00 /* Control and status register */
#define NPCM_RNGD_REG 0x04 /* Data register */
#define NPCM_RNGMODE_REG 0x08 /* Mode register */
+#define NPCM_RNG_CLK_SET_62_5MHZ BIT(2) /* 60-80 MHz */
#define NPCM_RNG_CLK_SET_25MHZ GENMASK(4, 3) /* 20-25 MHz */
#define NPCM_RNG_DATA_VALID BIT(1)
#define NPCM_RNG_ENABLE BIT(0)
@@ -31,14 +33,14 @@
struct npcm_rng {
void __iomem *base;
struct hwrng rng;
+ u32 clkp;
};
static int npcm_rng_init(struct hwrng *rng)
{
struct npcm_rng *priv = to_npcm_rng(rng);
- writel(NPCM_RNG_CLK_SET_25MHZ | NPCM_RNG_ENABLE,
- priv->base + NPCM_RNGCS_REG);
+ writel(priv->clkp | NPCM_RNG_ENABLE, priv->base + NPCM_RNGCS_REG);
return 0;
}
@@ -47,7 +49,7 @@ static void npcm_rng_cleanup(struct hwrng *rng)
{
struct npcm_rng *priv = to_npcm_rng(rng);
- writel(NPCM_RNG_CLK_SET_25MHZ, priv->base + NPCM_RNGCS_REG);
+ writel(priv->clkp, priv->base + NPCM_RNGCS_REG);
}
static int npcm_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
@@ -109,7 +111,7 @@ static int npcm_rng_probe(struct platform_device *pdev)
priv->rng.name = pdev->name;
priv->rng.read = npcm_rng_read;
priv->rng.priv = (unsigned long)&pdev->dev;
- priv->rng.quality = 1000;
+ priv->clkp = (u32)(uintptr_t)of_device_get_match_data(&pdev->dev);
writel(NPCM_RNG_M1ROSEL, priv->base + NPCM_RNGMODE_REG);
@@ -162,7 +164,10 @@ static const struct dev_pm_ops npcm_rng_pm_ops = {
};
static const struct of_device_id rng_dt_id[] __maybe_unused = {
- { .compatible = "nuvoton,npcm750-rng", },
+ { .compatible = "nuvoton,npcm750-rng",
+ .data = (void *)NPCM_RNG_CLK_SET_25MHZ },
+ { .compatible = "nuvoton,npcm845-rng",
+ .data = (void *)NPCM_RNG_CLK_SET_62_5MHZ },
{},
};
MODULE_DEVICE_TABLE(of, rng_dt_id);
diff --git a/drivers/char/hw_random/s390-trng.c b/drivers/char/hw_random/s390-trng.c
index 795853dfc46b..cffa326ddc8d 100644
--- a/drivers/char/hw_random/s390-trng.c
+++ b/drivers/char/hw_random/s390-trng.c
@@ -191,7 +191,6 @@ static struct hwrng trng_hwrng_dev = {
.name = "s390-trng",
.data_read = trng_hwrng_data_read,
.read = trng_hwrng_read,
- .quality = 1024,
};
diff --git a/drivers/char/hw_random/stm32-rng.c b/drivers/char/hw_random/stm32-rng.c
index bc22178f83e8..a6731cf0627a 100644
--- a/drivers/char/hw_random/stm32-rng.c
+++ b/drivers/char/hw_random/stm32-rng.c
@@ -44,16 +44,18 @@ static int stm32_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)
pm_runtime_get_sync((struct device *) priv->rng.priv);
- while (max > sizeof(u32)) {
+ while (max >= sizeof(u32)) {
sr = readl_relaxed(priv->base + RNG_SR);
/* Manage timeout which is based on timer and take */
/* care of initial delay time when enabling rng */
if (!sr && wait) {
- retval = readl_relaxed_poll_timeout_atomic(priv->base
+ int err;
+
+ err = readl_relaxed_poll_timeout_atomic(priv->base
+ RNG_SR,
sr, sr,
10, 50000);
- if (retval)
+ if (err)
dev_err((struct device *)priv->rng.priv,
"%s: timeout %x!\n", __func__, sr);
}
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c
index 8ea1fc831eb7..26f322d19a88 100644
--- a/drivers/char/hw_random/timeriomem-rng.c
+++ b/drivers/char/hw_random/timeriomem-rng.c
@@ -145,8 +145,6 @@ static int timeriomem_rng_probe(struct platform_device *pdev)
if (!of_property_read_u32(pdev->dev.of_node,
"quality", &i))
priv->rng_ops.quality = i;
- else
- priv->rng_ops.quality = 0;
} else {
period = pdata->period;
priv->rng_ops.quality = pdata->quality;
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index a6f3a8a2aca6..f7690e0f92ed 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -148,7 +148,6 @@ static int probe_common(struct virtio_device *vdev)
.cleanup = virtio_cleanup,
.priv = (unsigned long)vi,
.name = vi->name,
- .quality = 1000,
};
vdev->priv = vi;