From: Thomas Richter <tmricht@linux.ibm.com>
Date: Thu, 20 Oct 2022 08:52:24 +0000 (+0200)
Subject: s390/pai: move enum definition to header file
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4c78796301700bb9de82fce34c33adb1699b0ed9;p=linux.git

s390/pai: move enum definition to header file

Move enum definition to header file. This is done in preparation
for a follow on patch where this enum will be used in another source
file.
Also change the enum name from paiext_mode to paievt_mode
to indicate this enum is now used for several events.
Make naming consistent and rename PAI_MODE_COUNTER to PAI_MODE_COUNTING.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
---

diff --git a/arch/s390/include/asm/pai.h b/arch/s390/include/asm/pai.h
index 1a8a6b15d1213..7d1888e3dee6a 100644
--- a/arch/s390/include/asm/pai.h
+++ b/arch/s390/include/asm/pai.h
@@ -75,4 +75,10 @@ static __always_inline void pai_kernel_exit(struct pt_regs *regs)
 	WRITE_ONCE(S390_lowcore.ccd, S390_lowcore.ccd & ~PAI_CRYPTO_KERNEL_OFFSET);
 }
 
+enum paievt_mode {
+	PAI_MODE_NONE,
+	PAI_MODE_SAMPLING,
+	PAI_MODE_COUNTING,
+};
+
 #endif
diff --git a/arch/s390/kernel/perf_pai_ext.c b/arch/s390/kernel/perf_pai_ext.c
index d5c7c1e30c179..2da586936d958 100644
--- a/arch/s390/kernel/perf_pai_ext.c
+++ b/arch/s390/kernel/perf_pai_ext.c
@@ -28,12 +28,6 @@
 static debug_info_t *paiext_dbg;
 static unsigned int paiext_cnt;	/* Extracted with QPACI instruction */
 
-enum paiext_mode {
-	PAI_MODE_NONE,
-	PAI_MODE_SAMPLING,
-	PAI_MODE_COUNTER,
-};
-
 struct pai_userdata {
 	u16 num;
 	u64 value;
@@ -54,7 +48,7 @@ struct paiext_cb {		/* PAI extension 1 control block */
 struct paiext_map {
 	unsigned long *area;		/* Area for CPU to store counters */
 	struct pai_userdata *save;	/* Area to store non-zero counters */
-	enum paiext_mode mode;		/* Type of event */
+	enum paievt_mode mode;		/* Type of event */
 	unsigned int active_events;	/* # of PAI Extension users */
 	unsigned int refcnt;
 	struct perf_event *event;	/* Perf event for sampling */
@@ -192,14 +186,14 @@ static int paiext_alloc(struct perf_event_attr *a, struct perf_event *event)
 			goto unlock;
 		}
 		cpump->mode = a->sample_period ? PAI_MODE_SAMPLING
-					       : PAI_MODE_COUNTER;
+					       : PAI_MODE_COUNTING;
 	} else {
 		/* Multiple invocation, check whats active.
 		 * Supported are multiple counter events or only one sampling
 		 * event concurrently at any one time.
 		 */
 		if (cpump->mode == PAI_MODE_SAMPLING ||
-		    (cpump->mode == PAI_MODE_COUNTER && a->sample_period)) {
+		    (cpump->mode == PAI_MODE_COUNTING && a->sample_period)) {
 			rc = -EBUSY;
 			goto unlock;
 		}