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SubjectRe: [PATCH v2 27/29] venus: implementing multi-stream support
On Mon, Jul 2, 2018 at 9:43 PM Stanimir Varbanov
<stanimir.varbanov@linaro.org> wrote:
>
> Hi Tomasz,
>
> On 05/31/2018 12:51 PM, Tomasz Figa wrote:
> > On Tue, May 15, 2018 at 5:00 PM Stanimir Varbanov
> > <stanimir.varbanov@linaro.org> wrote:
> >>
> >> This is implementing a multi-stream decoder support. The multi
> >> stream gives an option to use the secondary decoder output
> >> with different raw format (or the same in case of crop).
> >>
> >> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
> >> ---
> >> drivers/media/platform/qcom/venus/core.h | 1 +
> >> drivers/media/platform/qcom/venus/helpers.c | 204 +++++++++++++++++++++++++++-
> >> drivers/media/platform/qcom/venus/helpers.h | 6 +
> >> drivers/media/platform/qcom/venus/vdec.c | 91 ++++++++++++-
> >> drivers/media/platform/qcom/venus/venc.c | 1 +
> >> 5 files changed, 299 insertions(+), 4 deletions(-)
> >>
> >> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> >> index 4d6c05f156c4..85e66e2dd672 100644
> >> --- a/drivers/media/platform/qcom/venus/core.h
> >> +++ b/drivers/media/platform/qcom/venus/core.h
> >> @@ -259,6 +259,7 @@ struct venus_inst {
> >> struct list_head list;
> >> struct mutex lock;
> >> struct venus_core *core;
> >> + struct list_head dpbbufs;
> >> struct list_head internalbufs;
> >> struct list_head registeredbufs;
> >> struct list_head delayed_process;
> >> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
> >> index ed569705ecac..87dcf9973e6f 100644
> >> --- a/drivers/media/platform/qcom/venus/helpers.c
> >> +++ b/drivers/media/platform/qcom/venus/helpers.c
> >> @@ -85,6 +85,112 @@ bool venus_helper_check_codec(struct venus_inst *inst, u32 v4l2_pixfmt)
> >> }
> >> EXPORT_SYMBOL_GPL(venus_helper_check_codec);
> >>
> >> +static int venus_helper_queue_dpb_bufs(struct venus_inst *inst)
> >> +{
> >> + struct intbuf *buf;
> >> + int ret = 0;
> >> +
> >> + if (list_empty(&inst->dpbbufs))
> >> + return 0;
> >
> > Does this special case give us anything other than few more source lines?
>
> yes, thanks for spotting, will drop above lines here and below.
>
> >
> >> +
> >> + list_for_each_entry(buf, &inst->dpbbufs, list) {
> >> + struct hfi_frame_data fdata;
> >> +
> >> + memset(&fdata, 0, sizeof(fdata));
> >> + fdata.alloc_len = buf->size;
> >> + fdata.device_addr = buf->da;
> >> + fdata.buffer_type = buf->type;
> >> +
> >> + ret = hfi_session_process_buf(inst, &fdata);
> >> + if (ret)
> >> + goto fail;
> >> + }
> >> +
> >> +fail:
> >> + return ret;
> >> +}
> >> +
> >> +int venus_helper_free_dpb_bufs(struct venus_inst *inst)
> >> +{
> >> + struct intbuf *buf, *n;
> >> +
> >> + if (list_empty(&inst->dpbbufs))
> >> + return 0;
> >
> > Ditto.
> >
> >> +
> >> + list_for_each_entry_safe(buf, n, &inst->dpbbufs, list) {
> >> + list_del_init(&buf->list);
> >> + dma_free_attrs(inst->core->dev, buf->size, buf->va, buf->da,
> >> + buf->attrs);
> >> + kfree(buf);
> >> + }
> >> +
> >> + INIT_LIST_HEAD(&inst->dpbbufs);
> >> +
> >> + return 0;
> >> +}
> >> +EXPORT_SYMBOL_GPL(venus_helper_free_dpb_bufs);
> > [snip]
> >> +int venus_helper_get_out_fmts(struct venus_inst *inst, u32 v4l2_fmt,
> >> + u32 *out_fmt, u32 *out2_fmt, bool ubwc)
> >> +{
> >> + struct venus_core *core = inst->core;
> >> + struct venus_caps *caps;
> >> + u32 ubwc_fmt, fmt = to_hfi_raw_fmt(v4l2_fmt);
> >> + bool found, found_ubwc;
> >> +
> >> + *out_fmt = *out2_fmt = 0;
> >> +
> >> + if (!fmt)
> >> + return -EINVAL;
> >> +
> >> + caps = venus_caps_by_codec(core, inst->hfi_codec, inst->session_type);
> >> + if (!caps)
> >> + return -EINVAL;
> >> +
> >> + if (ubwc) {
> >> + ubwc_fmt = fmt | HFI_COLOR_FORMAT_UBWC_BASE;
> >
> > Does the UBWC base format have to be the same as fmt? Looking at
> > HFI_COLOR_FORMAT_* macros, UBWC variants seem to exist only for few
> > selected raw formats, for example there is none for NV21.
>
> I think any raw format can have its UBWC variant. And yes we have only
> one macro but we are checking against parsed capabilities from firmware
> where the supported formats are stored.

Okay, thanks.

Best regards,
Tomasz

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