The intention of this patchset is to correct clock enable and disable
order and vote for venus-ebi and cpucfg paths with average bandwidth
instad of peak bandwidth since with current implementation we are seeing
clock related warning during XO-SD and suspend device while video playback
---
Resending v3 patches by correcting fixes tag
Mansur Alisha Shaik (4):
venus: core: change clk enable and disable order in resume and suspend
venus: core: vote for video-mem path
venus: core: vote with average bandwidth and peak bandwidth as zero
venus: put dummy vote on video-mem path after last session release
drivers/media/platform/qcom/venus/core.c | 32 ++++++++++++++++++++------
drivers/media/platform/qcom/venus/pm_helpers.c | 10 ++++++++
2 files changed, 35 insertions(+), 7 deletions(-)
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
As per bandwidth table video driver is voting with average bandwidth
for "video-mem" and "cpu-cfg" paths as peak bandwidth is zero
in bandwidth table.
Fixes: 7482a983d ("media: venus: redesign clocks and pm domains control")
Signed-off-by: Mansur Alisha Shaik <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
---
drivers/media/platform/qcom/venus/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index fa363b8..d5bfd6f 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -385,11 +385,11 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
const struct venus_pm_ops *pm_ops = core->pm_ops;
int ret;
- ret = icc_set_bw(core->video_path, 0, kbps_to_icc(1000));
+ ret = icc_set_bw(core->video_path, kbps_to_icc(20000), 0);
if (ret)
return ret;
- ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
+ ret = icc_set_bw(core->cpucfg_path, kbps_to_icc(1000), 0);
if (ret)
return ret;
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
As per current implementation, video driver is unvoting "videom-mem" path
for last video session during vdec_session_release().
While video playback when we try to suspend device, we see video clock
warnings since votes are already removed during vdec_session_release().
corrected this by putting dummy vote on "video-mem" after last video
session release and unvoting it during suspend.
Fixes: 7482a983d ("media: venus: redesign clocks and pm domains control")
Signed-off-by: Mansur Alisha Shaik <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
---
drivers/media/platform/qcom/venus/pm_helpers.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 57877ea..0ebba8e 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -212,6 +212,16 @@ static int load_scale_bw(struct venus_core *core)
}
mutex_unlock(&core->lock);
+ /*
+ * keep minimum bandwidth vote for "video-mem" path,
+ * so that clks can be disabled during vdec_session_release().
+ * Actual bandwidth drop will be done during device supend
+ * so that device can power down without any warnings.
+ */
+
+ if (!total_avg && !total_peak)
+ total_avg = kbps_to_icc(1000);
+
dev_dbg(core->dev, VDBGL "total: avg_bw: %u, peak_bw: %u\n",
total_avg, total_peak);
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
Currently video driver is voting after clk enable and un voting
before clk disable. This is incorrect, video driver should vote
before clk enable and unvote after clk disable.
Corrected this by changing the order of clk enable and clk disable.
Fixes: 07f8f22a33a9e ("media: venus: core: remove CNOC voting while device
suspend")
Signed-off-by: Mansur Alisha Shaik <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
---
- Resending by corecting fixes tag
drivers/media/platform/qcom/venus/core.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 6103aaf..52a3886 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -355,13 +355,16 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
if (ret)
return ret;
+ if (pm_ops->core_power) {
+ ret = pm_ops->core_power(dev, POWER_OFF);
+ if (ret)
+ return ret;
+ }
+
ret = icc_set_bw(core->cpucfg_path, 0, 0);
if (ret)
return ret;
- if (pm_ops->core_power)
- ret = pm_ops->core_power(dev, POWER_OFF);
-
return ret;
}
@@ -371,16 +374,16 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
const struct venus_pm_ops *pm_ops = core->pm_ops;
int ret;
+ ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
+ if (ret)
+ return ret;
+
if (pm_ops->core_power) {
ret = pm_ops->core_power(dev, POWER_ON);
if (ret)
return ret;
}
- ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
- if (ret)
- return ret;
-
return hfi_core_resume(core, false);
}
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation