tpm: factor out tpm 1.x duration calculation to tpm1-cmd.c

Factor out TPM 1.x 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@intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

1 files changed, 2 insertions, 282 deletions

diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index 129f640424b7..bb3eed907c72 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) ==
@@ -1086,7 +806,7 @@ 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;