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Message-Id: <20210518154509.602137-2-stanimir.varbanov@linaro.org>
Date: Tue, 18 May 2021 18:45:05 +0300
From: Stanimir Varbanov <stanimir.varbanov@...aro.org>
To: linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Vikash Garodia <vgarodia@...eaurora.org>,
Mansur Alisha Shaik <mansur@...eaurora.org>,
Stanimir Varbanov <stanimir.varbanov@...aro.org>
Subject: [PATCH 1/5] venus: venc: Use pmruntime autosuspend
Migrate encoder to use pm-runtime autosuspend APIs.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
---
drivers/media/platform/qcom/venus/venc.c | 104 +++++++++++++++++++++--
1 file changed, 96 insertions(+), 8 deletions(-)
diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
index 4a7291f934b6..a7a858f03ba3 100644
--- a/drivers/media/platform/qcom/venus/venc.c
+++ b/drivers/media/platform/qcom/venus/venc.c
@@ -536,6 +536,64 @@ static const struct v4l2_ioctl_ops venc_ioctl_ops = {
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
+static int venc_pm_get(struct venus_inst *inst)
+{
+ struct venus_core *core = inst->core;
+ struct device *dev = core->dev_enc;
+ int ret;
+
+ mutex_lock(&core->pm_lock);
+ ret = pm_runtime_get_sync(dev);
+ mutex_unlock(&core->pm_lock);
+
+ return ret < 0 ? ret : 0;
+}
+
+static int venc_pm_put(struct venus_inst *inst, bool autosuspend)
+{
+ struct venus_core *core = inst->core;
+ struct device *dev = core->dev_enc;
+ int ret;
+
+ mutex_lock(&core->pm_lock);
+
+ if (autosuspend)
+ ret = pm_runtime_put_autosuspend(dev);
+ else
+ ret = pm_runtime_put_sync(dev);
+
+ mutex_unlock(&core->pm_lock);
+
+ return ret < 0 ? ret : 0;
+}
+
+static int venc_pm_get_put(struct venus_inst *inst)
+{
+ struct venus_core *core = inst->core;
+ struct device *dev = core->dev_enc;
+ int ret = 0;
+
+ mutex_lock(&core->pm_lock);
+
+ if (pm_runtime_suspended(dev)) {
+ ret = pm_runtime_get_sync(dev);
+ if (ret < 0)
+ goto error;
+
+ ret = pm_runtime_put_autosuspend(dev);
+ }
+
+error:
+ mutex_unlock(&core->pm_lock);
+
+ return ret < 0 ? ret : 0;
+}
+
+static void venc_pm_touch(struct venus_inst *inst)
+{
+ pm_runtime_mark_last_busy(inst->core->dev_enc);
+}
+
static int venc_set_properties(struct venus_inst *inst)
{
struct venc_controls *ctr = &inst->controls.enc;
@@ -891,10 +949,18 @@ static int venc_queue_setup(struct vb2_queue *q,
return 0;
}
+ ret = venc_pm_get(inst);
+ if (ret)
+ return ret;
+
mutex_lock(&inst->lock);
ret = venc_init_session(inst);
mutex_unlock(&inst->lock);
+ if (ret)
+ goto put_power;
+
+ ret = venc_pm_put(inst, false);
if (ret)
return ret;
@@ -930,6 +996,9 @@ static int venc_queue_setup(struct vb2_queue *q,
break;
}
+ return ret;
+put_power:
+ venc_pm_put(inst, false);
return ret;
}
@@ -946,6 +1015,8 @@ static void venc_release_session(struct venus_inst *inst)
{
int ret;
+ venc_pm_get(inst);
+
mutex_lock(&inst->lock);
ret = hfi_session_deinit(inst);
@@ -957,6 +1028,8 @@ static void venc_release_session(struct venus_inst *inst)
venus_pm_load_scale(inst);
INIT_LIST_HEAD(&inst->registeredbufs);
venus_pm_release_core(inst);
+
+ venc_pm_put(inst, false);
}
static void venc_buf_cleanup(struct vb2_buffer *vb)
@@ -1026,7 +1099,15 @@ static int venc_start_streaming(struct vb2_queue *q, unsigned int count)
inst->sequence_cap = 0;
inst->sequence_out = 0;
+ ret = venc_pm_get(inst);
+ if (ret)
+ goto error;
+
ret = venus_pm_acquire_core(inst);
+ if (ret)
+ goto put_power;
+
+ ret = venc_pm_put(inst, true);
if (ret)
goto error;
@@ -1051,6 +1132,8 @@ static int venc_start_streaming(struct vb2_queue *q, unsigned int count)
return 0;
+put_power:
+ venc_pm_put(inst, false);
error:
venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
@@ -1065,6 +1148,8 @@ static void venc_vb2_buf_queue(struct vb2_buffer *vb)
{
struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
+ venc_pm_get_put(inst);
+
mutex_lock(&inst->lock);
venus_helper_vb2_buf_queue(vb);
mutex_unlock(&inst->lock);
@@ -1088,6 +1173,8 @@ static void venc_buf_done(struct venus_inst *inst, unsigned int buf_type,
struct vb2_buffer *vb;
unsigned int type;
+ venc_pm_touch(inst);
+
if (buf_type == HFI_BUFFER_INPUT)
type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
else
@@ -1117,6 +1204,8 @@ static void venc_event_notify(struct venus_inst *inst, u32 event,
{
struct device *dev = inst->core->dev_enc;
+ venc_pm_touch(inst);
+
if (event == EVT_SESSION_ERROR) {
inst->session_error = true;
dev_err(dev, "enc: event session error %x\n", inst->error);
@@ -1205,13 +1294,9 @@ static int venc_open(struct file *file)
venus_helper_init_instance(inst);
- ret = pm_runtime_get_sync(core->dev_enc);
- if (ret < 0)
- goto err_put_sync;
-
ret = venc_ctrl_init(inst);
if (ret)
- goto err_put_sync;
+ goto err_free;
ret = hfi_session_create(inst, &venc_hfi_ops);
if (ret)
@@ -1250,8 +1335,7 @@ static int venc_open(struct file *file)
hfi_session_destroy(inst);
err_ctrl_deinit:
venc_ctrl_deinit(inst);
-err_put_sync:
- pm_runtime_put_sync(core->dev_enc);
+err_free:
kfree(inst);
return ret;
}
@@ -1260,6 +1344,8 @@ static int venc_close(struct file *file)
{
struct venus_inst *inst = to_inst(file);
+ venc_pm_get(inst);
+
v4l2_m2m_ctx_release(inst->m2m_ctx);
v4l2_m2m_release(inst->m2m_dev);
venc_ctrl_deinit(inst);
@@ -1268,7 +1354,7 @@ static int venc_close(struct file *file)
v4l2_fh_del(&inst->fh);
v4l2_fh_exit(&inst->fh);
- pm_runtime_put_sync(inst->core->dev_enc);
+ venc_pm_put(inst, false);
kfree(inst);
return 0;
@@ -1325,6 +1411,8 @@ static int venc_probe(struct platform_device *pdev)
core->dev_enc = dev;
video_set_drvdata(vdev, core);
+ pm_runtime_set_autosuspend_delay(dev, 2000);
+ pm_runtime_use_autosuspend(dev);
pm_runtime_enable(dev);
return 0;
--
2.25.1
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