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Merge "disp: msm: sde: add pm QoS vote on CPU receiving display IRQ"

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This commit is contained in:
qctecmdr
2020-04-12 23:31:30 -07:00
committed by Gerrit - the friendly Code Review server
parent 697315b082 e85a88ea01
commit d94c7aef02
2 changed files with 95 additions and 1 deletions
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92
msm/sde/sde_kms.c
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@@ -2945,6 +2945,86 @@ static int _sde_kms_active_override(struct sde_kms *sde_kms, bool enable)
return 0;
}
static void sde_kms_update_pm_qos_irq_request(struct sde_kms *sde_kms)
{
struct device *cpu_dev;
int cpu = 0;
if (cpumask_empty(&sde_kms->irq_cpu_mask)) {
SDE_DEBUG("%s: irq_cpu_mask is empty\n", __func__);
return;
}
for_each_cpu(cpu, &sde_kms->irq_cpu_mask) {
cpu_dev = get_cpu_device(cpu);
if (!cpu_dev) {
SDE_DEBUG("%s: failed to get cpu%d device\n", __func__,
cpu);
continue;
}
if (dev_pm_qos_request_active(&sde_kms->pm_qos_irq_req[cpu]))
dev_pm_qos_update_request(&sde_kms->pm_qos_irq_req[cpu],
sde_kms->catalog->perf.cpu_dma_latency);
else
dev_pm_qos_add_request(cpu_dev,
&sde_kms->pm_qos_irq_req[cpu],
DEV_PM_QOS_RESUME_LATENCY,
sde_kms->catalog->perf.cpu_dma_latency);
}
}
static void sde_kms_remove_pm_qos_irq_request(struct sde_kms *sde_kms)
{
struct device *cpu_dev;
int cpu = 0;
if (cpumask_empty(&sde_kms->irq_cpu_mask)) {
SDE_DEBUG("%s: irq_cpu_mask is empty\n", __func__);
return;
}
for_each_cpu(cpu, &sde_kms->irq_cpu_mask) {
cpu_dev = get_cpu_device(cpu);
if (!cpu_dev) {
SDE_DEBUG("%s: failed to get cpu%d device\n", __func__,
cpu);
continue;
}
if (dev_pm_qos_request_active(&sde_kms->pm_qos_irq_req[cpu]))
dev_pm_qos_remove_request(
&sde_kms->pm_qos_irq_req[cpu]);
}
}
static void sde_kms_irq_affinity_notify(
struct irq_affinity_notify *affinity_notify,
const cpumask_t *mask)
{
struct msm_drm_private *priv;
struct sde_kms *sde_kms = container_of(affinity_notify,
struct sde_kms, affinity_notify);
if (!sde_kms || !sde_kms->dev || !sde_kms->dev->dev_private)
return;
priv = sde_kms->dev->dev_private;
mutex_lock(&priv->phandle.phandle_lock);
// save irq cpu mask
sde_kms->irq_cpu_mask = *mask;
// request vote with updated irq cpu mask
if (sde_kms->irq_enabled)
sde_kms_update_pm_qos_irq_request(sde_kms);
mutex_unlock(&priv->phandle.phandle_lock);
}
static void sde_kms_irq_affinity_release(struct kref *ref) {}
static void sde_kms_handle_power_event(u32 event_type, void *usr)
{
struct sde_kms *sde_kms = usr;
@@ -2963,7 +3043,9 @@ static void sde_kms_handle_power_event(u32 event_type, void *usr)
sde_kms_init_shared_hw(sde_kms);
_sde_kms_set_lutdma_vbif_remap(sde_kms);
sde_kms->first_kickoff = true;
sde_kms_update_pm_qos_irq_request(sde_kms);
} else if (event_type == SDE_POWER_EVENT_PRE_DISABLE) {
sde_kms_remove_pm_qos_irq_request(sde_kms);
sde_irq_update(msm_kms, false);
sde_kms->first_kickoff = false;
_sde_kms_active_override(sde_kms, true);
@@ -3378,7 +3460,7 @@ static int sde_kms_hw_init(struct msm_kms *kms)
struct drm_device *dev;
struct msm_drm_private *priv;
struct platform_device *platformdev;
int i, rc = -EINVAL;
int i, irq_num, rc = -EINVAL;
if (!kms) {
SDE_ERROR("invalid kms\n");
@@ -3452,6 +3534,14 @@ static int sde_kms_hw_init(struct msm_kms *kms)
pm_runtime_put_sync(sde_kms->dev->dev);
}
sde_kms->affinity_notify.notify = sde_kms_irq_affinity_notify;
sde_kms->affinity_notify.release = sde_kms_irq_affinity_release;
irq_num = platform_get_irq(to_platform_device(sde_kms->dev->dev), 0);
SDE_DEBUG("Registering for notification of irq_num: %d\n", irq_num);
irq_set_affinity_notifier(irq_num, &sde_kms->affinity_notify);
return 0;
hw_init_err: