diff options
| author | Oleg Perelet <operelet@codeaurora.org> | 2016-05-18 15:33:02 -0700 |
|---|---|---|
| committer | Kyle Yan <kyan@codeaurora.org> | 2016-05-24 17:57:35 -0700 |
| commit | 0909f0a311daecf99c178dd39f928d659a5a53d9 (patch) | |
| tree | aac0072fb704b060631f735bf2d65d1f8c5cac26 /drivers/gpu/msm/kgsl_pwrctrl.c | |
| parent | f9c4cdc99c718a8c029fd55d070ef9c4d2dbfbfd (diff) | |
msm: kgsl: Create sysfs entry to control GPU NAP state
Create sysfs entry to have option to disable software clockgating
NAP state.
CRs-Fixed: 973565
Change-Id: I2376f10161040dbf426887ce146ac597f401153f
Signed-off-by: Oleg Perelet <operelet@codeaurora.org>
Diffstat (limited to 'drivers/gpu/msm/kgsl_pwrctrl.c')
| -rw-r--r-- | drivers/gpu/msm/kgsl_pwrctrl.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/gpu/msm/kgsl_pwrctrl.c b/drivers/gpu/msm/kgsl_pwrctrl.c index 08f7b29fe96a..15c10ad073e6 100644 --- a/drivers/gpu/msm/kgsl_pwrctrl.c +++ b/drivers/gpu/msm/kgsl_pwrctrl.c @@ -32,6 +32,7 @@ #define KGSL_PWRFLAGS_AXI_ON 2 #define KGSL_PWRFLAGS_IRQ_ON 3 #define KGSL_PWRFLAGS_RETENTION_ON 4 +#define KGSL_PWRFLAGS_NAP_OFF 5 #define UPDATE_BUSY_VAL 1000000 @@ -1053,6 +1054,21 @@ static ssize_t kgsl_pwrctrl_force_non_retention_on_store(struct device *dev, KGSL_PWRFLAGS_RETENTION_ON); } +static ssize_t kgsl_pwrctrl_force_no_nap_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return __force_on_show(dev, attr, buf, KGSL_PWRFLAGS_NAP_OFF); +} + +static ssize_t kgsl_pwrctrl_force_no_nap_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + return __force_on_store(dev, attr, buf, count, + KGSL_PWRFLAGS_NAP_OFF); +} + static ssize_t kgsl_pwrctrl_bus_split_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -1217,6 +1233,9 @@ static DEVICE_ATTR(popp, 0644, kgsl_popp_show, kgsl_popp_store); static DEVICE_ATTR(force_non_retention_on, 0644, kgsl_pwrctrl_force_non_retention_on_show, kgsl_pwrctrl_force_non_retention_on_store); +static DEVICE_ATTR(force_no_nap, 0644, + kgsl_pwrctrl_force_no_nap_show, + kgsl_pwrctrl_force_no_nap_store); static const struct device_attribute *pwrctrl_attr_list[] = { &dev_attr_gpuclk, @@ -1235,6 +1254,7 @@ static const struct device_attribute *pwrctrl_attr_list[] = { &dev_attr_force_bus_on, &dev_attr_force_rail_on, &dev_attr_force_non_retention_on, + &dev_attr_force_no_nap, &dev_attr_bus_split, &dev_attr_default_pwrlevel, &dev_attr_popp, @@ -2549,7 +2569,9 @@ void kgsl_active_count_put(struct kgsl_device *device) BUG_ON(atomic_read(&device->active_cnt) == 0); if (atomic_dec_and_test(&device->active_cnt)) { - if (device->state == KGSL_STATE_ACTIVE && + bool nap_on = !(device->pwrctrl.ctrl_flags & + BIT(KGSL_PWRFLAGS_NAP_OFF)); + if (nap_on && device->state == KGSL_STATE_ACTIVE && device->requested_state == KGSL_STATE_NONE) { kgsl_pwrctrl_request_state(device, KGSL_STATE_NAP); kgsl_schedule_work(&device->idle_check_ws); |