diff options
| author | Xianzhong <b07117@freescale.com> | 2012-04-28 06:44:30 +0800 |
|---|---|---|
| committer | Xianzhong <b07117@freescale.com> | 2012-04-29 00:47:58 +0800 |
| commit | 5f5288b61bc0596dbe1436a65f0bdf52b8d855cb (patch) | |
| tree | 41a54e7957d9417c03bc0591722f2bdf0ae99433 /drivers | |
| parent | 15294851a2b934b5babb8a9c678f4afd357b7606 (diff) | |
ENGR00181165 gpu-viv: use high precision method for delay
Reduce gpu kernel delay to improve driver performance
Signed-off-by: Xianzhong <b07117@freescale.com>
Acked-by: Lily Zhang
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_options.h | 9 | ||||
| -rw-r--r-- | drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c | 12 |
2 files changed, 18 insertions, 3 deletions
diff --git a/drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_options.h b/drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_options.h index c96ece999b1a..73b666a37570 100644 --- a/drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_options.h +++ b/drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_options.h @@ -769,4 +769,13 @@ # define gcdALPHA_KILL_IN_SHADER 1 #endif +/* gcdHIGH_PRECISION_DELAY_ENABLE + * + * Enable high precision schedule delay with 1ms unit. otherwise schedule delay up to 10ms. + * Browser app performance will have obvious drop without this enablement + */ +#ifndef gcdHIGH_PRECISION_DELAY_ENABLE +# define gcdHIGH_PRECISION_DELAY_ENABLE 1 +#endif + #endif /* __gc_hal_options_h_ */ diff --git a/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c b/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c index 510b0300e3c4..cf0ccc2d4e2b 100644 --- a/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c +++ b/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c @@ -3761,13 +3761,18 @@ gckOS_Delay( IN gctUINT32 Delay ) { - struct timeval now; - unsigned long jiffies; - gcmkHEADER_ARG("Os=0x%X Delay=%u", Os, Delay); if (Delay > 0) { +#if gcdHIGH_PRECISION_DELAY_ENABLE + ktime_t wait = ns_to_ktime(Delay * 1000 * 1000); + set_current_state(TASK_INTERRUPTIBLE); + schedule_hrtimeout(&wait, HRTIMER_MODE_REL); +#else + struct timeval now; + unsigned long jiffies; + /* Convert milliseconds into seconds and microseconds. */ now.tv_sec = Delay / 1000; now.tv_usec = (Delay % 1000) * 1000; @@ -3777,6 +3782,7 @@ gckOS_Delay( /* Schedule timeout. */ schedule_timeout_interruptible(jiffies); +#endif } /* Success. */ |