[PATCH 2/5 V2] tpm: factor out tpm 1.2 duration calculation to tpm1-cmd.c
Tomas Winkler
tomas.winkler at intel.com
Tue Mar 6 09:25:00 UTC 2018
Factor out tpm1.2 commands calculation into tpm1-cmd.c file.
and change the prefix from tpm_ to tpm1_.
No functional change is done here.
Signed-off-by: Tomas Winkler <tomas.winkler at intel.com>
---
V2: Rebase.
drivers/char/tpm/Makefile | 1 +
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 | 309 +++++++++++++++++++++++++++++++++++
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, 321 insertions(+), 291 deletions(-)
create mode 100644 drivers/char/tpm/tpm1-cmd.c
diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile
index b2d6ca9e62e4..87f77dfa7fc9 100644
--- a/drivers/char/tpm/Makefile
+++ b/drivers/char/tpm/Makefile
@@ -9,6 +9,7 @@ tpm-y += tpm-dev-common.o
tpm-y += tpm-interface.o
tpm-y += tpmrm-dev.o
tpm-y += tpm-sysfs.o
+tpm-y += tpm1-cmd.o
tpm-y += tpm1_eventlog.o
tpm-y += tpm2-cmd.o
tpm-y += tpm2_eventlog.o
diff --git a/drivers/char/tpm/st33zp24/st33zp24.c b/drivers/char/tpm/st33zp24/st33zp24.c
index f95b9c75175b..ad03c99899fa 100644
--- a/drivers/char/tpm/st33zp24/st33zp24.c
+++ b/drivers/char/tpm/st33zp24/st33zp24.c
@@ -432,7 +432,7 @@ 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 ddf7d937c77c..402e54252b22 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,
@@ -489,7 +209,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space,
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) ==
@@ -999,7 +719,7 @@ 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 b0ee61e5d414..38197a30ad7b 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -515,7 +515,7 @@ 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..70adcea681cd
--- /dev/null
+++ b/drivers/char/tpm/tpm1-cmd.c
@@ -0,0 +1,309 @@
+/*
+ * Copyright (C) 2004 IBM Corporation
+ * Copyright (C) 2014 Intel Corporation
+ *
+ * Authors:
+ * Leendert van Doorn <leendert at watson.ibm.com>
+ * Dave Safford <safford at watson.ibm.com>
+ * Reiner Sailer <sailer at watson.ibm.com>
+ * Kylene Hall <kjhall at us.ibm.com>
+ *
+ * Device driver for TCG/TCPA TPM (trusted platform module).
+ * Specifications at www.trustedcomputinggroup.org
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ */
+
+#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 5a1f47b43947..222e45a5a762 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -436,7 +436,7 @@ 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) {
--
2.14.3
--
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