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Message-ID:
<SE1P216MB13033E2A6C2BD397CA76D8D0ED692@SE1P216MB1303.KORP216.PROD.OUTLOOK.COM>
Date: Wed, 25 Sep 2024 01:22:04 +0000
From: jackson.lee <jackson.lee@...psnmedia.com>
To: "sebastian.fricke@...labora.com" <sebastian.fricke@...labora.com>
CC: Nicolas Dufresne <nicolas@...fresne.ca>, "mchehab@...nel.org"
<mchehab@...nel.org>, "linux-media@...r.kernel.org"
<linux-media@...r.kernel.org>, "linux-kernel@...r.kernel.org"
<linux-kernel@...r.kernel.org>, "hverkuil@...all.nl" <hverkuil@...all.nl>,
Nas Chung <nas.chung@...psnmedia.com>, lafley.kim
<lafley.kim@...psnmedia.com>, "b-brnich@...com" <b-brnich@...com>
Subject: RE: [RESEND PATCH v7 2/4] media: chips-media: wave5: Support runtime
suspend/resume
Hi Sebastian and Nicolas
Can you please pull our patch?
Thanks
Jackson
> -----Original Message-----
> From: jackson.lee
> Sent: Monday, September 9, 2024 4:56 PM
> To: sebastian.fricke@...labora.com
> Cc: Nicolas Dufresne <nicolas@...fresne.ca>; mchehab@...nel.org; linux-
> media@...r.kernel.org; linux-kernel@...r.kernel.org; hverkuil@...all.nl;
> Nas Chung <nas.chung@...psnmedia.com>; lafley.kim
> <lafley.kim@...psnmedia.com>; b-brnich@...com
> Subject: RE: [RESEND PATCH v7 2/4] media: chips-media: wave5: Support
> runtime suspend/resume
>
> Hi Sebastian
>
> Many thanks
>
> Jackson
>
> > -----Original Message-----
> > From: sebastian.fricke@...labora.com <sebastian.fricke@...labora.com>
> > Sent: Monday, September 9, 2024 2:47 PM
> > To: jackson.lee <jackson.lee@...psnmedia.com>
> > Cc: Nicolas Dufresne <nicolas@...fresne.ca>; mchehab@...nel.org;
> > linux- media@...r.kernel.org; linux-kernel@...r.kernel.org;
> > hverkuil@...all.nl; Nas Chung <nas.chung@...psnmedia.com>; lafley.kim
> > <lafley.kim@...psnmedia.com>; b-brnich@...com
> > Subject: Re: [RESEND PATCH v7 2/4] media: chips-media: wave5: Support
> > runtime suspend/resume
> >
> > Hey Jackson,
> >
> > On 09.09.2024 01:21, jackson.lee wrote:
> > >Hi Nicolas
> > >
> > >> -----Original Message-----
> > >> From: Nicolas Dufresne <nicolas@...fresne.ca>
> > >> Sent: Saturday, September 7, 2024 4:27 AM
> > >> To: jackson.lee <jackson.lee@...psnmedia.com>; mchehab@...nel.org;
> > >> sebastian.fricke@...labora.com
> > >> Cc: linux-media@...r.kernel.org; linux-kernel@...r.kernel.org;
> > >> hverkuil@...all.nl; Nas Chung <nas.chung@...psnmedia.com>;
> > >> lafley.kim <lafley.kim@...psnmedia.com>; b-brnich@...com
> > >> Subject: Re: [RESEND PATCH v7 2/4] media: chips-media: wave5:
> > >> Support runtime suspend/resume
> > >>
> > >> Hi Again,
> > >>
> > >> Le vendredi 06 septembre 2024 à 13:08 -0400, Nicolas Dufresne a
> écrit :
> > >> > Hi,
> > >> >
> > >> > Le lundi 12 août 2024 à 16:08 +0900, Jackson.lee a écrit :
> > >> > > Add support for runtime suspend/resume in the encoder and decoder.
> > >> > > This is achieved by saving the VPU state and powering it off
> > >> > > while the
> > >> VPU idle.
> > >> >
> > >> > If you don't, I'll edit to "while the VPU *is* idle".
> > >> >
> > >> > regards,
> > >> > Nicolas
> > >> >
> > >> > >
> > >> > > Signed-off-by: Jackson.lee <jackson.lee@...psnmedia.com>
> > >> > > Signed-off-by: Nas Chung <nas.chung@...psnmedia.com>
> > >> > > Reviewed-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>
> > >> > > ---
> > >> > > .../platform/chips-media/wave5/wave5-helper.c | 13 -----
> > >> > > .../platform/chips-media/wave5/wave5-hw.c | 4 +-
> > >> > > .../chips-media/wave5/wave5-vpu-dec.c | 21 ++++++--
> > >> > > .../chips-media/wave5/wave5-vpu-enc.c | 20 ++++++--
> > >> > > .../platform/chips-media/wave5/wave5-vpu.c | 50
> > +++++++++++++++++++
> > >> > > .../platform/chips-media/wave5/wave5-vpuapi.c | 33
> > >> > > ++++++++++-- .../media/platform/chips-media/wave5/wave5.h | 3
> > >> > > ++
> > >> > > 7 files changed, 118 insertions(+), 26 deletions(-)
> > >> > >
> > >> > > diff --git
> > >> > > a/drivers/media/platform/chips-media/wave5/wave5-helper.c
> > >> > > b/drivers/media/platform/chips-media/wave5/wave5-helper.c
> > >> > > index d60841c54a80..a20d84dbe3aa 100644
> > >> > > --- a/drivers/media/platform/chips-media/wave5/wave5-helper.c
> > >> > > +++ b/drivers/media/platform/chips-media/wave5/wave5-helper.c
> > >> > > @@ -58,7 +58,6 @@ int wave5_vpu_release_device(struct file *filp,
> > >> > > char *name)
> > >> > > {
> > >> > > struct vpu_instance *inst = wave5_to_vpu_inst(filp-
> > >private_data);
> > >> > > - struct vpu_device *dev = inst->dev;
> > >> > > int ret = 0;
> > >> > >
> > >> > > v4l2_m2m_ctx_release(inst->v4l2_fh.m2m_ctx);
> > >> > > @@ -78,18 +77,6 @@ int wave5_vpu_release_device(struct file *filp,
> > >> > > }
> > >> > >
> > >> > > wave5_cleanup_instance(inst);
> > >> > > - if (dev->irq < 0) {
> > >> > > - ret = mutex_lock_interruptible(&dev->dev_lock);
> > >> > > - if (ret)
> > >> > > - return ret;
> > >> > > -
> > >> > > - if (list_empty(&dev->instances)) {
> > >> > > - dev_dbg(dev->dev, "Disabling the hrtimer\n");
> > >> > > - hrtimer_cancel(&dev->hrtimer);
> > >> > > - }
> > >> > > -
> > >> > > - mutex_unlock(&dev->dev_lock);
> > >> > > - }
> > >> > >
> > >> > > return ret;
> > >> > > }
> > >> > > diff --git
> > >> > > a/drivers/media/platform/chips-media/wave5/wave5-hw.c
> > >> > > b/drivers/media/platform/chips-media/wave5/wave5-hw.c
> > >> > > index 2a98bab446d0..c8a905994109 100644
> > >> > > --- a/drivers/media/platform/chips-media/wave5/wave5-hw.c
> > >> > > +++ b/drivers/media/platform/chips-media/wave5/wave5-hw.c
> > >> > > @@ -1228,8 +1228,8 @@ int wave5_vpu_re_init(struct device *dev,
> > >> > > u8 *fw,
> > >> size_t size)
> > >> > > return setup_wave5_properties(dev); }
> > >> > >
> > >> > > -static int wave5_vpu_sleep_wake(struct device *dev, bool
> > >> > > i_sleep_wake,
> > >> const uint16_t *code,
> > >> > > - size_t size)
> > >> > > +int wave5_vpu_sleep_wake(struct device *dev, bool
> > >> > > +i_sleep_wake, const
> > >> uint16_t *code,
> > >> > > + size_t size)
> > >> > > {
> > >> > > u32 reg_val;
> > >> > > struct vpu_buf *common_vb;
> > >> > > diff --git
> > >> > > a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
> > >> > > b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
> > >> > > index 0c5c9a8de91f..698c83e3082e 100644
> > >> > > --- a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
> > >> > > +++ b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
> > >> > > @@ -5,6 +5,7 @@
> > >> > > * Copyright (C) 2021-2023 CHIPS&MEDIA INC
> > >> > > */
> > >> > >
> > >> > > +#include <linux/pm_runtime.h>
> > >> > > #include "wave5-helper.h"
> > >> > >
> > >> > > #define VPU_DEC_DEV_NAME "C&M Wave5 VPU decoder"
> > >> > > @@ -518,6 +519,8 @@ static void
> > >> > > wave5_vpu_dec_finish_decode(struct
> > >> vpu_instance *inst)
> > >> > > if (q_status.report_queue_count == 0 &&
> > >> > > (q_status.instance_queue_count == 0 ||
> > >> dec_info.sequence_changed)) {
> > >> > > dev_dbg(inst->dev->dev, "%s: finishing job.\n",
> > __func__);
> > >> > > + pm_runtime_mark_last_busy(inst->dev->dev);
> > >> > > + pm_runtime_put_autosuspend(inst->dev->dev);
> > >> > > v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
> > >> > > }
> > >> > > }
> > >> > > @@ -1398,6 +1401,7 @@ static int
> > >> > > wave5_vpu_dec_start_streaming(struct
> > >> vb2_queue *q, unsigned int count
> > >> > > int ret = 0;
> > >> > >
> > >> > > dev_dbg(inst->dev->dev, "%s: type: %u\n", __func__, q->type);
> > >> > > + pm_runtime_resume_and_get(inst->dev->dev);
> > >> > >
> > >> > > v4l2_m2m_update_start_streaming_state(m2m_ctx, q);
> > >> > >
> > >> > > @@ -1429,13 +1433,15 @@ static int
> > >> wave5_vpu_dec_start_streaming(struct vb2_queue *q, unsigned int
> > >> count
> > >> > > if (ret)
> > >> > > goto return_buffers;
> > >> > > }
> > >> > > -
> > >> > > + pm_runtime_mark_last_busy(inst->dev->dev);
> > >> > > + pm_runtime_put_autosuspend(inst->dev->dev);
> > >> > > return ret;
> > >> > >
> > >> > > free_bitstream_vbuf:
> > >> > > wave5_vdi_free_dma_memory(inst->dev, &inst->bitstream_vbuf);
> > >> > > return_buffers:
> > >> > > wave5_return_bufs(q, VB2_BUF_STATE_QUEUED);
> > >> > > + pm_runtime_put_autosuspend(inst->dev->dev);
> > >> > > return ret;
> > >> > > }
> > >> > >
> > >> > > @@ -1521,6 +1527,7 @@ static void
> > >> > > wave5_vpu_dec_stop_streaming(struct
> > >> vb2_queue *q)
> > >> > > bool check_cmd = TRUE;
> > >> > >
> > >> > > dev_dbg(inst->dev->dev, "%s: type: %u\n", __func__, q->type);
> > >> > > + pm_runtime_resume_and_get(inst->dev->dev);
> > >> > >
> > >> > > while (check_cmd) {
> > >> > > struct queue_status_info q_status; @@ -1544,6 +1551,9
> > @@
> > >> static
> > >> > > void wave5_vpu_dec_stop_streaming(struct vb2_queue *q)
> > >> > > streamoff_output(q);
> > >> > > else
> > >> > > streamoff_capture(q);
> > >> > > +
> > >> > > + pm_runtime_mark_last_busy(inst->dev->dev);
> > >> > > + pm_runtime_put_autosuspend(inst->dev->dev);
> > >> > > }
> > >> > >
> > >> > > static const struct vb2_ops wave5_vpu_dec_vb2_ops = { @@
> > >> > > -1630,7
> > >> > > +1640,7 @@ static void wave5_vpu_dec_device_run(void *priv)
> > >> > > int ret = 0;
> > >> > >
> > >> > > dev_dbg(inst->dev->dev, "%s: Fill the ring buffer with new
> > >> > > bitstream data", __func__);
> > >> > > -
> > >> > > + pm_runtime_resume_and_get(inst->dev->dev);
> > >> > > ret = fill_ringbuffer(inst);
> > >> > > if (ret) {
> > >> > > dev_warn(inst->dev->dev, "Filling ring buffer
> > failed\n"); @@
> > >> > > -1713,6 +1723,8 @@ static void wave5_vpu_dec_device_run(void
> > >> > > *priv)
> > >> > >
> > >> > > finish_job_and_return:
> > >> > > dev_dbg(inst->dev->dev, "%s: leave and finish job",
> > __func__);
> > >> > > + pm_runtime_mark_last_busy(inst->dev->dev);
> > >> > > + pm_runtime_put_autosuspend(inst->dev->dev);
> > >> > > v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx); }
> > >> > >
> > >> > > @@ -1879,9 +1891,8 @@ static int wave5_vpu_open_dec(struct file
> > *filp)
> > >> > > if (ret)
> > >> > > goto cleanup_inst;
> > >> > >
> > >> > > - if (dev->irq < 0 && !hrtimer_active(&dev->hrtimer) &&
> > >> list_empty(&dev->instances))
> > >> > > - hrtimer_start(&dev->hrtimer, ns_to_ktime(dev-
> > >> >vpu_poll_interval * NSEC_PER_MSEC),
> > >> > > - HRTIMER_MODE_REL_PINNED);
> > >> > > + if (list_empty(&dev->instances))
> > >> > > + pm_runtime_use_autosuspend(inst->dev->dev);
> > >> > >
> > >> > > list_add_tail(&inst->list, &dev->instances);
> > >> > >
> > >> > > diff --git
> > >> > > a/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
> > >> > > b/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
> > >> > > index b731decbfda6..985de0c293e2 100644
> > >> > > --- a/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
> > >> > > +++ b/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
> > >> > > @@ -5,6 +5,7 @@
> > >> > > * Copyright (C) 2021-2023 CHIPS&MEDIA INC
> > >> > > */
> > >> > >
> > >> > > +#include <linux/pm_runtime.h>
> > >> > > #include "wave5-helper.h"
> > >> > >
> > >> > > #define VPU_ENC_DEV_NAME "C&M Wave5 VPU encoder"
> > >> > > @@ -1310,6 +1311,7 @@ static int
> > >> > > wave5_vpu_enc_start_streaming(struct
> > >> vb2_queue *q, unsigned int count
> > >> > > struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
> > >> > > int ret = 0;
> > >> > >
> > >> > > + pm_runtime_resume_and_get(inst->dev->dev);
> > >> > > v4l2_m2m_update_start_streaming_state(m2m_ctx, q);
> > >> > >
> > >> > > if (inst->state == VPU_INST_STATE_NONE && q->type ==
> > >> > > V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { @@ -1364,9 +1366,13 @@
> > >> > > static int
> > >> wave5_vpu_enc_start_streaming(struct vb2_queue *q, unsigned int
> > >> count
> > >> > > if (ret)
> > >> > > goto return_buffers;
> > >> > >
> > >> > > + pm_runtime_mark_last_busy(inst->dev->dev);
> > >> > > + pm_runtime_put_autosuspend(inst->dev->dev);
> > >> > > return 0;
> > >> > > return_buffers:
> > >> > > wave5_return_bufs(q, VB2_BUF_STATE_QUEUED);
> > >> > > + pm_runtime_mark_last_busy(inst->dev->dev);
> > >> > > + pm_runtime_put_autosuspend(inst->dev->dev);
> > >> > > return ret;
> > >> > > }
> > >> > >
> > >> > > @@ -1408,6 +1414,7 @@ static void
> > >> > > wave5_vpu_enc_stop_streaming(struct
> > >> vb2_queue *q)
> > >> > > */
> > >> > >
> > >> > > dev_dbg(inst->dev->dev, "%s: type: %u\n", __func__, q->type);
> > >> > > + pm_runtime_resume_and_get(inst->dev->dev);
> > >> > >
> > >> > > if (wave5_vpu_both_queues_are_streaming(inst))
> > >> > > switch_state(inst, VPU_INST_STATE_STOP); @@ -1432,6
> > +1439,9
> > >> @@
> > >> > > static void wave5_vpu_enc_stop_streaming(struct vb2_queue *q)
> > >> > > streamoff_output(inst, q);
> > >> > > else
> > >> > > streamoff_capture(inst, q);
> > >> > > +
> > >> > > + pm_runtime_mark_last_busy(inst->dev->dev);
> > >> > > + pm_runtime_put_autosuspend(inst->dev->dev);
> > >> > > }
> > >> > >
> > >> > > static const struct vb2_ops wave5_vpu_enc_vb2_ops = { @@
> > >> > > -1478,6
> > >> > > +1488,7 @@ static void wave5_vpu_enc_device_run(void *priv)
> > >> > > u32 fail_res = 0;
> > >> > > int ret = 0;
> > >> > >
> > >> > > + pm_runtime_resume_and_get(inst->dev->dev);
> > >> > > switch (inst->state) {
> > >> > > case VPU_INST_STATE_PIC_RUN:
> > >> > > ret = start_encode(inst, &fail_res); @@ -1491,6
> > +1502,8 @@
> > >> static
> > >> > > void wave5_vpu_enc_device_run(void *priv)
> > >> > > break;
> > >> > > }
> > >> > > dev_dbg(inst->dev->dev, "%s: leave with active job",
> > >> __func__);
> > >> > > + pm_runtime_mark_last_busy(inst->dev->dev);
> > >> > > + pm_runtime_put_autosuspend(inst->dev->dev);
> > >> > > return;
> > >> > > default:
> > >> > > WARN(1, "Execution of a job in state %s is invalid.\n",
> > @@
> > >> > > -1498,6 +1511,8 @@ static void wave5_vpu_enc_device_run(void
> *priv)
> > >> > > break;
> > >> > > }
> > >> > > dev_dbg(inst->dev->dev, "%s: leave and finish job",
> > __func__);
> > >> > > + pm_runtime_mark_last_busy(inst->dev->dev);
> > >> > > + pm_runtime_put_autosuspend(inst->dev->dev);
> > >> > > v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx); }
> > >> > >
> > >> > > @@ -1739,9 +1754,8 @@ static int wave5_vpu_open_enc(struct file
> > *filp)
> > >> > > if (ret)
> > >> > > goto cleanup_inst;
> > >> > >
> > >> > > - if (dev->irq < 0 && !hrtimer_active(&dev->hrtimer) &&
> > >> list_empty(&dev->instances))
> > >> > > - hrtimer_start(&dev->hrtimer, ns_to_ktime(dev-
> > >> >vpu_poll_interval * NSEC_PER_MSEC),
> > >> > > - HRTIMER_MODE_REL_PINNED);
> > >> > > + if (list_empty(&dev->instances))
> > >> > > + pm_runtime_use_autosuspend(inst->dev->dev);
> > >> > >
> > >> > > list_add_tail(&inst->list, &dev->instances);
> > >> > >
> > >> > > diff --git
> > >> > > a/drivers/media/platform/chips-media/wave5/wave5-vpu.c
> > >> > > b/drivers/media/platform/chips-media/wave5/wave5-vpu.c
> > >> > > index 7273254ecb03..41c4bf64f27d 100644
> > >> > > --- a/drivers/media/platform/chips-media/wave5/wave5-vpu.c
> > >> > > +++ b/drivers/media/platform/chips-media/wave5/wave5-vpu.c
> > >> > > @@ -10,6 +10,7 @@
> > >> > > #include <linux/clk.h>
> > >> > > #include <linux/firmware.h>
> > >> > > #include <linux/interrupt.h>
> > >> > > +#include <linux/pm_runtime.h>
> > >> > > #include <linux/reset.h>
> > >> > > #include "wave5-vpu.h"
> > >> > > #include "wave5-regdefine.h"
> > >> > > @@ -153,6 +154,45 @@ static int wave5_vpu_load_firmware(struct
> > >> > > device
> > >> *dev, const char *fw_name,
> > >> > > return 0;
> > >> > > }
> > >> > >
> > >> > > +static __maybe_unused int wave5_pm_suspend(struct device *dev) {
> > >> > > + struct vpu_device *vpu = dev_get_drvdata(dev);
> > >> > > +
> > >> > > + if (pm_runtime_suspended(dev))
> > >> > > + return 0;
> > >> > > +
> > >> > > + if (vpu->irq < 0)
> > >> > > + hrtimer_cancel(&vpu->hrtimer);
> > >> > > +
> > >> > > + wave5_vpu_sleep_wake(dev, true, NULL, 0);
> > >> > > + clk_bulk_disable_unprepare(vpu->num_clks, vpu->clks);
> > >> > > +
> > >> > > + return 0;
> > >> > > +}
> > >> > > +
> > >> > > +static __maybe_unused int wave5_pm_resume(struct device *dev) {
> > >> > > + struct vpu_device *vpu = dev_get_drvdata(dev);
> > >> > > + int ret = 0;
> > >> > > +
> > >> > > + wave5_vpu_sleep_wake(dev, false, NULL, 0);
> > >> > > + ret = clk_bulk_prepare_enable(vpu->num_clks, vpu->clks);
> > >> > > + if (ret) {
> > >> > > + dev_err(dev, "Enabling clocks, fail: %d\n", ret);
> > >> > > + return ret;
> > >> > > + }
> > >> > > +
> > >> > > + if (vpu->irq < 0 && !hrtimer_active(&vpu->hrtimer))
> > >> > > + hrtimer_start(&vpu->hrtimer, ns_to_ktime(vpu-
> > >> >vpu_poll_interval * NSEC_PER_MSEC),
> > >> > > + HRTIMER_MODE_REL_PINNED);
> > >>
> > >> I have fixed locally this style error. Alignment should match open
> > >> parenthesis.
> > >> Checkpatch caught that, it saves times if you run checkpatch before
> > >> your submissions.
> > >>
> > >> https://gitlab.freedesktop.org/ndufresne/media-staging/-/jobs/63283
> > >> 65
> > >> 4
> > >>
> > >
> > >
> > >Sorry for that, thanks for your feedback.
> > >Should I make v8 for that ?
> >
> > That is not required in this case, when he says "I have fixed
> > locally", that means that the required change is applied by the
> > maintainer before merging the changes upstream.
> >
> > Regards,
> > Sebastian
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