[PATCH] tpm: factor out TPM 1.x duration calculation to tpm1-cmd.c
Jarkko Sakkinen
jarkko.sakkinen at linux.intel.com
Fri Aug 24 10:35:10 UTC 2018
From: Tomas Winkler <tomas.winkler at intel.com>
Factor out TPM 1.x commands calculation into tpm1-cmd.c file and change
the prefix from "tpm_" to "tpm1_". No functional changes are done here.
Signed-off-by: Tomas Winkler <tomas.winkler at intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen at linux.intel.com>
---
Applied Tomas' patch with "patch -p1 -u", added SPDIX header and fixed
some minor typos in the commit message. Better to apply this first
before backporting rest of the patches. Other than those updates, the
commit should be unchanged from the original.
The associated patch sets:
* https://lkml.org/lkml/2018/3/6/147
* https://lkml.org/lkml/2018/3/10/45
drivers/char/tpm/Makefile | 2 +-
drivers/char/tpm/st33zp24/st33zp24.c | 2 +-
drivers/char/tpm/tpm-interface.c | 284 +-------------------------
drivers/char/tpm/tpm.h | 2 +-
drivers/char/tpm/tpm1-cmd.c | 294 +++++++++++++++++++++++++++
drivers/char/tpm/tpm_i2c_nuvoton.c | 10 +-
drivers/char/tpm/tpm_tis_core.c | 2 +-
drivers/char/tpm/xen-tpmfront.c | 2 +-
8 files changed, 306 insertions(+), 292 deletions(-)
create mode 100644 drivers/char/tpm/tpm1-cmd.c
diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile
index 4e9c33ca1f8f..fd3f12847e86 100644
--- a/drivers/char/tpm/Makefile
+++ b/drivers/char/tpm/Makefile
@@ -3,7 +3,7 @@
# Makefile for the kernel tpm device drivers.
#
obj-$(CONFIG_TCG_TPM) += tpm.o
-tpm-y := tpm-interface.o tpm-dev.o tpm-sysfs.o tpm-chip.o tpm2-cmd.o \
+tpm-y := tpm-interface.o tpm-dev.o tpm-sysfs.o tpm-chip.o tpm1-cmd.o tpm2-cmd.o \
tpm-dev-common.o tpmrm-dev.o eventlog/common.o eventlog/tpm1.o \
eventlog/tpm2.o tpm2-space.o
tpm-$(CONFIG_ACPI) += tpm_ppi.o eventlog/acpi.o
diff --git a/drivers/char/tpm/st33zp24/st33zp24.c b/drivers/char/tpm/st33zp24/st33zp24.c
index abd675bec88c..16be974955ea 100644
--- a/drivers/char/tpm/st33zp24/st33zp24.c
+++ b/drivers/char/tpm/st33zp24/st33zp24.c
@@ -430,7 +430,7 @@ static int st33zp24_send(struct tpm_chip *chip, unsigned char *buf,
ordinal = be32_to_cpu(*((__be32 *) (buf + 6)));
ret = wait_for_stat(chip, TPM_STS_DATA_AVAIL | TPM_STS_VALID,
- tpm_calc_ordinal_duration(chip, ordinal),
+ tpm1_calc_ordinal_duration(chip, ordinal),
&tpm_dev->read_queue, false);
if (ret < 0)
goto out_err;
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index 1a803b0cf980..7c37bda68cab 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -33,7 +33,6 @@
#include "tpm.h"
-#define TPM_MAX_ORDINAL 243
#define TSC_MAX_ORDINAL 12
#define TPM_PROTECTED_COMMAND 0x00
#define TPM_CONNECTION_COMMAND 0x40
@@ -48,285 +47,6 @@ module_param_named(suspend_pcr, tpm_suspend_pcr, uint, 0644);
MODULE_PARM_DESC(suspend_pcr,
"PCR to use for dummy writes to facilitate flush on suspend.");
-/*
- * Array with one entry per ordinal defining the maximum amount
- * of time the chip could take to return the result. The ordinal
- * designation of short, medium or long is defined in a table in
- * TCG Specification TPM Main Part 2 TPM Structures Section 17. The
- * values of the SHORT, MEDIUM, and LONG durations are retrieved
- * from the chip during initialization with a call to tpm_get_timeouts.
- */
-static const u8 tpm_ordinal_duration[TPM_MAX_ORDINAL] = {
- TPM_UNDEFINED, /* 0 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 5 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 10 */
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_LONG,
- TPM_LONG,
- TPM_MEDIUM, /* 15 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_LONG,
- TPM_SHORT, /* 20 */
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_SHORT, /* 25 */
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_SHORT,
- TPM_SHORT,
- TPM_MEDIUM, /* 30 */
- TPM_LONG,
- TPM_MEDIUM,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT, /* 35 */
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_MEDIUM, /* 40 */
- TPM_LONG,
- TPM_MEDIUM,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT, /* 45 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_LONG,
- TPM_MEDIUM, /* 50 */
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 55 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_MEDIUM, /* 60 */
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_SHORT,
- TPM_SHORT,
- TPM_MEDIUM, /* 65 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 70 */
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 75 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_LONG, /* 80 */
- TPM_UNDEFINED,
- TPM_MEDIUM,
- TPM_LONG,
- TPM_SHORT,
- TPM_UNDEFINED, /* 85 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 90 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED, /* 95 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_MEDIUM, /* 100 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 105 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 110 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT, /* 115 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_LONG, /* 120 */
- TPM_LONG,
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_SHORT,
- TPM_SHORT, /* 125 */
- TPM_SHORT,
- TPM_LONG,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT, /* 130 */
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_UNDEFINED, /* 135 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 140 */
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 145 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 150 */
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED, /* 155 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 160 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 165 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_LONG, /* 170 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 175 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_MEDIUM, /* 180 */
- TPM_SHORT,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_MEDIUM, /* 185 */
- TPM_SHORT,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 190 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 195 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 200 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT,
- TPM_SHORT, /* 205 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_MEDIUM, /* 210 */
- TPM_UNDEFINED,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_MEDIUM,
- TPM_UNDEFINED, /* 215 */
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT,
- TPM_SHORT, /* 220 */
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_SHORT,
- TPM_UNDEFINED, /* 225 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 230 */
- TPM_LONG,
- TPM_MEDIUM,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED, /* 235 */
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_UNDEFINED,
- TPM_SHORT, /* 240 */
- TPM_UNDEFINED,
- TPM_MEDIUM,
-};
-
-/*
- * Returns max number of jiffies to wait
- */
-unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip,
- u32 ordinal)
-{
- int duration_idx = TPM_UNDEFINED;
- int duration = 0;
-
- /*
- * We only have a duration table for protected commands, where the upper
- * 16 bits are 0. For the few other ordinals the fallback will be used.
- */
- if (ordinal < TPM_MAX_ORDINAL)
- duration_idx = tpm_ordinal_duration[ordinal];
-
- if (duration_idx != TPM_UNDEFINED)
- duration = chip->duration[duration_idx];
- if (duration <= 0)
- return 2 * 60 * HZ;
- else
- return duration;
-}
-EXPORT_SYMBOL_GPL(tpm_calc_ordinal_duration);
-
static int tpm_validate_command(struct tpm_chip *chip,
struct tpm_space *space,
const u8 *cmd,
@@ -503,7 +223,7 @@ static ssize_t tpm_try_transmit(struct tpm_chip *chip,
if (chip->flags & TPM_CHIP_FLAG_TPM2)
stop = jiffies + tpm2_calc_ordinal_duration(chip, ordinal);
else
- stop = jiffies + tpm_calc_ordinal_duration(chip, ordinal);
+ stop = jiffies + tpm1_calc_ordinal_duration(chip, ordinal);
do {
u8 status = chip->ops->status(chip);
if ((status & chip->ops->req_complete_mask) ==
@@ -1085,7 +805,7 @@ int tpm_do_selftest(struct tpm_chip *chip)
unsigned long duration;
u8 dummy[TPM_DIGEST_SIZE];
- duration = tpm_calc_ordinal_duration(chip, TPM_ORD_CONTINUE_SELFTEST);
+ duration = tpm1_calc_ordinal_duration(chip, TPM_ORD_CONTINUE_SELFTEST);
loops = jiffies_to_msecs(duration) / delay_msec;
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index f3501d05264f..a0b9e784bc3b 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -537,7 +537,7 @@ ssize_t tpm_getcap(struct tpm_chip *chip, u32 subcap_id, cap_t *cap,
int tpm_get_timeouts(struct tpm_chip *);
int tpm1_auto_startup(struct tpm_chip *chip);
int tpm_do_selftest(struct tpm_chip *chip);
-unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal);
+unsigned long tpm1_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal);
int tpm_pm_suspend(struct device *dev);
int tpm_pm_resume(struct device *dev);
diff --git a/drivers/char/tpm/tpm1-cmd.c b/drivers/char/tpm/tpm1-cmd.c
new file mode 100644
index 000000000000..18ae79dc0445
--- /dev/null
+++ b/drivers/char/tpm/tpm1-cmd.c
@@ -0,0 +1,294 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2004 IBM Corporation
+// Copyright (C) 2014 Intel Corporation
+
+#include <linux/poll.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/freezer.h>
+#include <linux/tpm_eventlog.h>
+
+#include "tpm.h"
+
+#define TPM_MAX_ORDINAL 243
+
+/*
+ * Array with one entry per ordinal defining the maximum amount
+ * of time the chip could take to return the result. The ordinal
+ * designation of short, medium or long is defined in a table in
+ * TCG Specification TPM Main Part 2 TPM Structures Section 17. The
+ * values of the SHORT, MEDIUM, and LONG durations are retrieved
+ * from the chip during initialization with a call to tpm_get_timeouts.
+ */
+static const u8 tpm1_ordinal_duration[TPM_MAX_ORDINAL] = {
+ TPM_UNDEFINED, /* 0 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED, /* 5 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT, /* 10 */
+ TPM_SHORT,
+ TPM_MEDIUM,
+ TPM_LONG,
+ TPM_LONG,
+ TPM_MEDIUM, /* 15 */
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_MEDIUM,
+ TPM_LONG,
+ TPM_SHORT, /* 20 */
+ TPM_SHORT,
+ TPM_MEDIUM,
+ TPM_MEDIUM,
+ TPM_MEDIUM,
+ TPM_SHORT, /* 25 */
+ TPM_SHORT,
+ TPM_MEDIUM,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_MEDIUM, /* 30 */
+ TPM_LONG,
+ TPM_MEDIUM,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT, /* 35 */
+ TPM_MEDIUM,
+ TPM_MEDIUM,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_MEDIUM, /* 40 */
+ TPM_LONG,
+ TPM_MEDIUM,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT, /* 45 */
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_LONG,
+ TPM_MEDIUM, /* 50 */
+ TPM_MEDIUM,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED, /* 55 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_MEDIUM, /* 60 */
+ TPM_MEDIUM,
+ TPM_MEDIUM,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_MEDIUM, /* 65 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT, /* 70 */
+ TPM_SHORT,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED, /* 75 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_LONG, /* 80 */
+ TPM_UNDEFINED,
+ TPM_MEDIUM,
+ TPM_LONG,
+ TPM_SHORT,
+ TPM_UNDEFINED, /* 85 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT, /* 90 */
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_UNDEFINED, /* 95 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_MEDIUM, /* 100 */
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED, /* 105 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT, /* 110 */
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT, /* 115 */
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_LONG, /* 120 */
+ TPM_LONG,
+ TPM_MEDIUM,
+ TPM_UNDEFINED,
+ TPM_SHORT,
+ TPM_SHORT, /* 125 */
+ TPM_SHORT,
+ TPM_LONG,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT, /* 130 */
+ TPM_MEDIUM,
+ TPM_UNDEFINED,
+ TPM_SHORT,
+ TPM_MEDIUM,
+ TPM_UNDEFINED, /* 135 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT, /* 140 */
+ TPM_SHORT,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED, /* 145 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT, /* 150 */
+ TPM_MEDIUM,
+ TPM_MEDIUM,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_UNDEFINED, /* 155 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT, /* 160 */
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED, /* 165 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_LONG, /* 170 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED, /* 175 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_MEDIUM, /* 180 */
+ TPM_SHORT,
+ TPM_MEDIUM,
+ TPM_MEDIUM,
+ TPM_MEDIUM,
+ TPM_MEDIUM, /* 185 */
+ TPM_SHORT,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED, /* 190 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED, /* 195 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT, /* 200 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT,
+ TPM_SHORT, /* 205 */
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_MEDIUM, /* 210 */
+ TPM_UNDEFINED,
+ TPM_MEDIUM,
+ TPM_MEDIUM,
+ TPM_MEDIUM,
+ TPM_UNDEFINED, /* 215 */
+ TPM_MEDIUM,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT,
+ TPM_SHORT, /* 220 */
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_SHORT,
+ TPM_UNDEFINED, /* 225 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT, /* 230 */
+ TPM_LONG,
+ TPM_MEDIUM,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED, /* 235 */
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_UNDEFINED,
+ TPM_SHORT, /* 240 */
+ TPM_UNDEFINED,
+ TPM_MEDIUM,
+};
+
+/*
+ * Returns max number of jiffies to wait
+ */
+unsigned long tpm1_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal)
+{
+ int duration_idx = TPM_UNDEFINED;
+ int duration = 0;
+
+ /*
+ * We only have a duration table for protected commands, where the upper
+ * 16 bits are 0. For the few other ordinals the fallback will be used.
+ */
+ if (ordinal < TPM_MAX_ORDINAL)
+ duration_idx = tpm1_ordinal_duration[ordinal];
+
+ if (duration_idx != TPM_UNDEFINED)
+ duration = chip->duration[duration_idx];
+ if (duration <= 0)
+ return 2 * 60 * HZ;
+ else
+ return duration;
+}
+EXPORT_SYMBOL_GPL(tpm1_calc_ordinal_duration);
+
diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c
index caa86b19c76d..5d20e98b844f 100644
--- a/drivers/char/tpm/tpm_i2c_nuvoton.c
+++ b/drivers/char/tpm/tpm_i2c_nuvoton.c
@@ -370,6 +370,7 @@ static int i2c_nuvoton_send(struct tpm_chip *chip, u8 *buf, size_t len)
struct i2c_client *client = to_i2c_client(dev);
u32 ordinal;
size_t count = 0;
+ unsigned long duration;
int burst_count, bytes2write, retries, rc = -EIO;
for (retries = 0; retries < TPM_RETRY; retries++) {
@@ -455,12 +456,11 @@ static int i2c_nuvoton_send(struct tpm_chip *chip, u8 *buf, size_t len)
return rc;
}
ordinal = be32_to_cpu(*((__be32 *) (buf + 6)));
- rc = i2c_nuvoton_wait_for_data_avail(chip,
- tpm_calc_ordinal_duration(chip,
- ordinal),
- &priv->read_queue);
+ duration = tpm1_calc_ordinal_duration(chip, ordinal);
+ rc = i2c_nuvoton_wait_for_data_avail(chip, duration, &priv->read_queue);
if (rc) {
- dev_err(dev, "%s() timeout command duration\n", __func__);
+ dev_err(dev, "%s() timeout command duration %ld\n",
+ __func__, duration);
i2c_nuvoton_ready(chip);
return rc;
}
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index d2345d9fd7b5..14c332104de4 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -476,7 +476,7 @@ static int tpm_tis_send_main(struct tpm_chip *chip, const u8 *buf, size_t len)
if (chip->flags & TPM_CHIP_FLAG_TPM2)
dur = tpm2_calc_ordinal_duration(chip, ordinal);
else
- dur = tpm_calc_ordinal_duration(chip, ordinal);
+ dur = tpm1_calc_ordinal_duration(chip, ordinal);
if (wait_for_tpm_stat
(chip, TPM_STS_DATA_AVAIL | TPM_STS_VALID, dur,
diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c
index 911475d36800..c7ded298617d 100644
--- a/drivers/char/tpm/xen-tpmfront.c
+++ b/drivers/char/tpm/xen-tpmfront.c
@@ -164,7 +164,7 @@ static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
notify_remote_via_evtchn(priv->evtchn);
ordinal = be32_to_cpu(((struct tpm_input_header*)buf)->ordinal);
- duration = tpm_calc_ordinal_duration(chip, ordinal);
+ duration = tpm1_calc_ordinal_duration(chip, ordinal);
if (wait_for_tpm_stat(chip, VTPM_STATUS_IDLE, duration,
&priv->read_queue, true) < 0) {
--
2.17.1
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