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From: Pierre Morel <pmorel@linux.ibm.com>
To: kvm@vger.kernel.org
Cc: linux-s390@vger.kernel.org, frankja@linux.ibm.com,
	david@redhat.com, thuth@redhat.com, cohuck@redhat.com
Subject: [kvm-unit-tests PATCH v7 05/12] s390x: export the clock get_clock_ms() utility
Date: Mon, 18 May 2020 18:07:24 +0200	[thread overview]
Message-ID: <1589818051-20549-6-git-send-email-pmorel@linux.ibm.com> (raw)
In-Reply-To: <1589818051-20549-1-git-send-email-pmorel@linux.ibm.com>

To serve multiple times, the function get_clock_ms() is moved
from intercept.c test to the new file asm/time.h.

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
 lib/s390x/asm/time.h | 26 ++++++++++++++++++++++++++
 s390x/intercept.c    | 11 +----------
 2 files changed, 27 insertions(+), 10 deletions(-)
 create mode 100644 lib/s390x/asm/time.h

diff --git a/lib/s390x/asm/time.h b/lib/s390x/asm/time.h
new file mode 100644
index 0000000..25c7a3c
--- /dev/null
+++ b/lib/s390x/asm/time.h
@@ -0,0 +1,26 @@
+/*
+ * Clock utilities for s390
+ *
+ * Authors:
+ *  Thomas Huth <thuth@redhat.com>
+ *
+ * Copied from the s390/intercept test by:
+ *  Pierre Morel <pmorel@linux.ibm.com>
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2.
+ */
+#ifndef _ASM_S390X_TIME_H_
+#define _ASM_S390X_TIME_H_
+
+static inline uint64_t get_clock_ms(void)
+{
+	uint64_t clk;
+
+	asm volatile(" stck %0 " : : "Q"(clk) : "memory");
+
+	/* Bit 51 is incrememented each microsecond */
+	return (clk >> (63 - 51)) / 1000;
+}
+
+#endif
diff --git a/s390x/intercept.c b/s390x/intercept.c
index 5f46b82..2e38257 100644
--- a/s390x/intercept.c
+++ b/s390x/intercept.c
@@ -14,6 +14,7 @@
 #include <asm/interrupt.h>
 #include <asm/page.h>
 #include <asm/facility.h>
+#include <asm/time.h>
 
 static uint8_t pagebuf[PAGE_SIZE * 2] __attribute__((aligned(PAGE_SIZE * 2)));
 
@@ -153,16 +154,6 @@ static void test_testblock(void)
 	check_pgm_int_code(PGM_INT_CODE_ADDRESSING);
 }
 
-static uint64_t get_clock_ms(void)
-{
-	uint64_t clk;
-
-	asm volatile(" stck %0 " : : "Q"(clk) : "memory");
-
-	/* Bit 51 is incrememented each microsecond */
-	return (clk >> (63 - 51)) / 1000;
-}
-
 struct {
 	const char *name;
 	void (*func)(void);
-- 
2.25.1


  parent reply	other threads:[~2020-05-18 16:07 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-18 16:07 [kvm-unit-tests PATCH v7 00/12] s390x: Testing the Channel Subsystem I/O Pierre Morel
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 01/12] s390x: saving regs for interrupts Pierre Morel
2020-05-26 10:30   ` Janosch Frank
2020-05-26 11:39     ` Pierre Morel
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 02/12] s390x: Use PSW bits definitions in cstart Pierre Morel
2020-05-26 10:17   ` Janosch Frank
2020-05-26 11:40     ` Pierre Morel
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 03/12] s390x: Move control register bit definitions and add AFP to them Pierre Morel
2020-05-25 18:57   ` Thomas Huth
2020-05-26 11:51     ` Pierre Morel
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 04/12] s390x: interrupt registration Pierre Morel
2020-05-26 18:08   ` Thomas Huth
2020-05-27 15:54     ` Pierre Morel
2020-05-18 16:07 ` Pierre Morel [this message]
2020-05-26 18:10   ` [kvm-unit-tests PATCH v7 05/12] s390x: export the clock get_clock_ms() utility Thomas Huth
2020-06-04  6:49     ` Pierre Morel
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 06/12] s390x: use get_clock_ms() to calculate a delay in ms Pierre Morel
2020-05-26 18:16   ` Thomas Huth
2020-06-04  7:21     ` Pierre Morel
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 07/12] s390x: Library resources for CSS tests Pierre Morel
2020-05-26 16:30   ` Cornelia Huck
2020-06-04  7:42     ` Pierre Morel
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 08/12] s390x: css: stsch, enumeration test Pierre Morel
2020-05-25 19:12   ` Thomas Huth
2020-05-26 10:41     ` Janosch Frank
2020-05-26 10:49       ` Thomas Huth
2020-05-26 11:38         ` Pierre Morel
2020-05-27  8:55   ` Cornelia Huck
2020-06-04 11:35     ` Pierre Morel
2020-06-04 11:45       ` Thomas Huth
2020-06-04 12:27         ` Pierre Morel
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 09/12] s390x: css: msch, enable test Pierre Morel
2020-05-27  9:42   ` Cornelia Huck
2020-06-04 12:46     ` Pierre Morel
2020-06-04 13:29       ` Cornelia Huck
2020-06-05  7:37         ` Pierre Morel
2020-06-05  8:24           ` Pierre Morel
2020-06-05  9:00             ` Cornelia Huck
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 10/12] s390x: define function to wait for interrupt Pierre Morel
2020-05-26 10:42   ` Janosch Frank
2020-05-26 11:40     ` Pierre Morel
2020-05-27  9:45   ` Cornelia Huck
2020-06-04 12:47     ` Pierre Morel
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 11/12] s390x: css: ssch/tsch with sense and interrupt Pierre Morel
2020-05-27 10:09   ` Cornelia Huck
2020-06-05  7:37     ` Pierre Morel
2020-06-05  9:02       ` Cornelia Huck
2020-05-18 16:07 ` [kvm-unit-tests PATCH v7 12/12] s390x: css: ping pong Pierre Morel

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