tpm: move tpm_eventlog.h outside of drivers folder

The generic definitions of data structures in tpm_eventlog.h are
required by other part of the kernel (namely, the EFI stub).

Signed-off-by: Thiebaud Weksteen <tweek@google.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Javier Martinez Canillas <javierm@redhat.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>

drivers/char/tpm/tpm-chip.c

@@ -26,8 +26,9 @@
 #include <linux/spinlock.h>
 #include <linux/freezer.h>
 #include <linux/major.h>
+#include <linux/tpm_eventlog.h>
+
 #include "tpm.h"
-#include "tpm_eventlog.h"
 
 DEFINE_IDR(dev_nums_idr);
 static DEFINE_MUTEX(idr_lock);

drivers/char/tpm/tpm-interface.c

@@ -30,9 +30,9 @@
 #include <linux/spinlock.h>
 #include <linux/freezer.h>
 #include <linux/pm_runtime.h>
+#include <linux/tpm_eventlog.h>
 
 #include "tpm.h"
-#include "tpm_eventlog.h"
 
 #define TPM_MAX_ORDINAL 243
 #define TSC_MAX_ORDINAL 12

drivers/char/tpm/tpm.h

@@ -34,6 +34,7 @@
 #include <linux/acpi.h>
 #include <linux/cdev.h>
 #include <linux/highmem.h>
+#include <linux/tpm_eventlog.h>
 #include <crypto/hash_info.h>
 
 #ifdef CONFIG_X86
@@ -385,10 +386,6 @@ struct tpm_cmd_t {
 	tpm_cmd_params	params;
 } __packed;
 
-struct tpm2_digest {
-	u16 alg_id;
-	u8 digest[SHA512_DIGEST_SIZE];
-} __packed;
 
 /* A string buffer type for constructing TPM commands. This is based on the
  * ideas of string buffer code in security/keys/trusted.h but is heap based
@@ -573,4 +570,26 @@ int tpm2_prepare_space(struct tpm_chip *chip, struct tpm_space *space, u32 cc,
 		       u8 *cmd);
 int tpm2_commit_space(struct tpm_chip *chip, struct tpm_space *space,
 		      u32 cc, u8 *buf, size_t *bufsiz);
+
+extern const struct seq_operations tpm2_binary_b_measurements_seqops;
+
+#if defined(CONFIG_ACPI)
+int tpm_read_log_acpi(struct tpm_chip *chip);
+#else
+static inline int tpm_read_log_acpi(struct tpm_chip *chip)
+{
+	return -ENODEV;
+}
+#endif
+#if defined(CONFIG_OF)
+int tpm_read_log_of(struct tpm_chip *chip);
+#else
+static inline int tpm_read_log_of(struct tpm_chip *chip)
+{
+	return -ENODEV;
+}
+#endif
+
+int tpm_bios_log_setup(struct tpm_chip *chip);
+void tpm_bios_log_teardown(struct tpm_chip *chip);
 #endif

drivers/char/tpm/tpm1_eventlog.c

@@ -25,9 +25,9 @@
 #include <linux/security.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/tpm_eventlog.h>
 
 #include "tpm.h"
-#include "tpm_eventlog.h"
 
 
 static const char* tcpa_event_type_strings[] = {

drivers/char/tpm/tpm2_eventlog.c

@@ -21,9 +21,9 @@
 #include <linux/security.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/tpm_eventlog.h>
 
 #include "tpm.h"
-#include "tpm_eventlog.h"
 
 /*
  * calc_tpm2_event_size() - calculate the event size, where event

drivers/char/tpm/tpm_acpi.c

@@ -25,9 +25,9 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/acpi.h>
+#include <linux/tpm_eventlog.h>
 
 #include "tpm.h"
-#include "tpm_eventlog.h"
 
 struct acpi_tcpa {
 	struct acpi_table_header hdr;

drivers/char/tpm/tpm_of.c

@@ -17,9 +17,9 @@
 
 #include <linux/slab.h>
 #include <linux/of.h>
+#include <linux/tpm_eventlog.h>
 
 #include "tpm.h"
-#include "tpm_eventlog.h"
 
 int tpm_read_log_of(struct tpm_chip *chip)
 {

drivers/char/tpm/tpm_eventlog.h → include/linux/tpm_eventlog.h

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 
-#ifndef __TPM_EVENTLOG_H__
-#define __TPM_EVENTLOG_H__
+#ifndef __LINUX_TPM_EVENTLOG_H__
+#define __LINUX_TPM_EVENTLOG_H__
 
 #include <crypto/hash_info.h>
 
@@ -105,6 +105,11 @@ struct tcg_event_field {
 	u8 event[0];
 } __packed;
 
+struct tpm2_digest {
+	u16 alg_id;
+	u8 digest[SHA512_DIGEST_SIZE];
+} __packed;
+
 struct tcg_pcr_event2 {
 	u32 pcr_idx;
 	u32 event_type;
@@ -113,26 +118,4 @@ struct tcg_pcr_event2 {
 	struct tcg_event_field event;
 } __packed;
 
-extern const struct seq_operations tpm2_binary_b_measurements_seqops;
-
-#if defined(CONFIG_ACPI)
-int tpm_read_log_acpi(struct tpm_chip *chip);
-#else
-static inline int tpm_read_log_acpi(struct tpm_chip *chip)
-{
-	return -ENODEV;
-}
-#endif
-#if defined(CONFIG_OF)
-int tpm_read_log_of(struct tpm_chip *chip);
-#else
-static inline int tpm_read_log_of(struct tpm_chip *chip)
-{
-	return -ENODEV;
-}
-#endif
-
-int tpm_bios_log_setup(struct tpm_chip *chip);
-void tpm_bios_log_teardown(struct tpm_chip *chip);
-
 #endif