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From: Andy Lutomirski <luto@kernel.org>
To: x86@kernel.org
Cc: Borislav Petkov <bp@suse.de>,
	Peter Zijlstra <peterz@infradead.org>,
	John Stultz <john.stultz@linaro.org>,
	linux-kernel@vger.kernel.org, Len Brown <lenb@kernel.org>,
	Huang Rui <ray.huang@amd.com>,
	Denys Vlasenko <dvlasenk@redhat.com>,
	Andy Lutomirski <luto@kernel.org>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	linux-input@vger.kernel.org
Subject: [PATCH v2 11/17] drivers/input/gameport: Replace rdtscl() with native_read_tsc()
Date: Fri, 12 Jun 2015 16:44:51 -0700	[thread overview]
Message-ID: <1937af4905bc041d07d05bc51bca983a60df2c6c.1434152603.git.luto@kernel.org> (raw)
In-Reply-To: <cover.1434152603.git.luto@kernel.org>
In-Reply-To: <cover.1434152603.git.luto@kernel.org>

It's unclear to me why this code exists in the first place.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 drivers/input/gameport/gameport.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index e853a2134680..abc0cb22e750 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -149,9 +149,9 @@ static int old_gameport_measure_speed(struct gameport *gameport)
 
 	for(i = 0; i < 50; i++) {
 		local_irq_save(flags);
-		rdtscl(t1);
+		t1 = native_read_tsc();
 		for (t = 0; t < 50; t++) gameport_read(gameport);
-		rdtscl(t2);
+		t2 = native_read_tsc();
 		local_irq_restore(flags);
 		udelay(i * 10);
 		if (t2 - t1 < tx) tx = t2 - t1;
-- 
2.4.2


  parent reply	other threads:[~2015-06-12 23:45 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-12 23:44 [PATCH v2 00/17] x86/tsc: Clean up rdtsc helpers Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 01/17] x86/tsc: Inline native_read_tsc and remove __native_read_tsc Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 02/17] x86/msr/kvm: Remove vget_cycles() Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 03/17] x86/tsc/paravirt: Remove the read_tsc and read_tscp paravirt hooks Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 04/17] x86/tsc: Replace rdtscll with native_read_tsc Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 05/17] x86/tsc: Remove the rdtscp and rdtscpll macros Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 06/17] x86/tsc: Use the full 64-bit tsc in tsc_delay Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 07/17] x86/cpu/amd: Use the full 64-bit TSC to detect the 2.6.2 bug Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 08/17] baycom_epp: Replace rdtscl() with native_read_tsc() Andy Lutomirski
2015-06-13 10:45   ` walter harms
2015-06-15 23:15     ` Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 09/17] staging/lirc_serial: Remove TSC-based timing Andy Lutomirski
2015-06-19 13:02   ` Dan Carpenter
2015-06-19 16:15   ` Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 10/17] input/joystick/analog: Switch from rdtscl() to native_read_tsc() Andy Lutomirski
2015-06-16 23:03   ` Dmitry Torokhov
2015-06-16 23:09     ` Andy Lutomirski
2015-06-16 23:15       ` Dmitry Torokhov
2015-06-12 23:44 ` Andy Lutomirski [this message]
2015-06-16 23:04   ` [PATCH v2 11/17] drivers/input/gameport: Replace rdtscl() with native_read_tsc() Dmitry Torokhov
2015-06-12 23:44 ` [PATCH v2 12/17] x86/tsc: Remove rdtscl() Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 13/17] x86/tsc: Rename native_read_tsc() to rdtsc_unordered() Andy Lutomirski
2015-06-13  8:57   ` Borislav Petkov
2015-06-13 18:25     ` Andy Lutomirski
2015-06-14 11:54       ` Borislav Petkov
2015-06-12 23:44 ` [PATCH v2 14/17] x86/tsc: Move rdtsc_barrier() and rename it to barrier_before_rdtsc() Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 15/17] x86: Add rdtsc_ordered() and use it in trivial call sites Andy Lutomirski
2015-06-13  9:02   ` Borislav Petkov
2015-06-13 18:25     ` Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 16/17] x86/tsc: Use rdtsc_ordered() in check_tsc_warp() and drop extra barriers Andy Lutomirski
2015-06-12 23:44 ` [PATCH v2 17/17] x86/tsc: In read_tsc, use rdtsc_ordered() instead of get_cycles() Andy Lutomirski

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