| From | Andy Lutomirski <> | Subject | [PATCH v3 10/18] input/joystick/analog: Switch from rdtscl() to native_read_tsc() | Date | Tue, 16 Jun 2015 17:35:58 -0700 |
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This timing code is hideous, and this doesn't help. It gets rid of one of the last users of rdtscl, though.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: linux-input@vger.kernel.org Signed-off-by: Andy Lutomirski <luto@kernel.org> --- drivers/input/joystick/analog.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c index 4284080e481d..f871b4f00056 100644 --- a/drivers/input/joystick/analog.c +++ b/drivers/input/joystick/analog.c @@ -143,7 +143,7 @@ struct analog_port { #include <linux/i8253.h> -#define GET_TIME(x) do { if (cpu_has_tsc) rdtscl(x); else x = get_time_pit(); } while (0) +#define GET_TIME(x) do { if (cpu_has_tsc) x = (unsigned int)native_read_tsc(); else x = get_time_pit(); } while (0) #define DELTA(x,y) (cpu_has_tsc ? ((y) - (x)) : ((x) - (y) + ((x) < (y) ? PIT_TICK_RATE / HZ : 0))) #define TIME_NAME (cpu_has_tsc?"TSC":"PIT") static unsigned int get_time_pit(void) @@ -160,7 +160,7 @@ static unsigned int get_time_pit(void) return count; } #elif defined(__x86_64__) -#define GET_TIME(x) rdtscl(x) +#define GET_TIME(x) do { x = (unsigned int)native_read_tsc(); } while (0) #define DELTA(x,y) ((y)-(x)) #define TIME_NAME "TSC" #elif defined(__alpha__) || defined(CONFIG_MN10300) || defined(CONFIG_ARM) || defined(CONFIG_ARM64) || defined(CONFIG_TILE) -- 2.4.2
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