LinuxTV Patchwork [07/10] venus: helpers: add three more helper functions

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Submitter Stanimir Varbanov
Date Jan. 17, 2019, 4:20 p.m.
Message ID <20190117162008.25217-8-stanimir.varbanov@linaro.org>
Download mbox | patch
Permalink /patch/53982/
State New
Headers show

Comments

Stanimir Varbanov - Jan. 17, 2019, 4:20 p.m.
This adds three more helper functions:
 * for internal buffers reallocation, applicable when we are doing
dynamic resolution change
 * for initial buffer processing of capture and output queue buffer
types

All of them will be needed for stateful Codec API support.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
---
 drivers/media/platform/qcom/venus/helpers.c | 82 +++++++++++++++++++++
 drivers/media/platform/qcom/venus/helpers.h |  2 +
 2 files changed, 84 insertions(+)
Alexandre Courbot - Jan. 24, 2019, 8:43 a.m.
On Fri, Jan 18, 2019 at 1:21 AM Stanimir Varbanov
<stanimir.varbanov@linaro.org> wrote:
>
> This adds three more helper functions:
>  * for internal buffers reallocation, applicable when we are doing
> dynamic resolution change
>  * for initial buffer processing of capture and output queue buffer
> types
>
> All of them will be needed for stateful Codec API support.
>
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/helpers.c | 82 +++++++++++++++++++++
>  drivers/media/platform/qcom/venus/helpers.h |  2 +
>  2 files changed, 84 insertions(+)
>
> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
> index f33bbfea3576..637ce7b82d94 100644
> --- a/drivers/media/platform/qcom/venus/helpers.c
> +++ b/drivers/media/platform/qcom/venus/helpers.c
> @@ -322,6 +322,52 @@ int venus_helper_intbufs_free(struct venus_inst *inst)
>  }
>  EXPORT_SYMBOL_GPL(venus_helper_intbufs_free);
>
> +int venus_helper_intbufs_realloc(struct venus_inst *inst)

Does this function actually reallocate buffers? It seems to just free
what we had previously.


> +{
> +       enum hfi_version ver = inst->core->res->hfi_version;
> +       struct hfi_buffer_desc bd;
> +       struct intbuf *buf, *n;
> +       int ret;
> +
> +       list_for_each_entry_safe(buf, n, &inst->internalbufs, list) {
> +               if (buf->type == HFI_BUFFER_INTERNAL_PERSIST ||
> +                   buf->type == HFI_BUFFER_INTERNAL_PERSIST_1)
> +                       continue;
> +
> +               memset(&bd, 0, sizeof(bd));
> +               bd.buffer_size = buf->size;
> +               bd.buffer_type = buf->type;
> +               bd.num_buffers = 1;
> +               bd.device_addr = buf->da;
> +               bd.response_required = true;
> +
> +               ret = hfi_session_unset_buffers(inst, &bd);
> +
> +               dma_free_attrs(inst->core->dev, buf->size, buf->va, buf->da,
> +                              buf->attrs);
> +
> +               list_del_init(&buf->list);
> +               kfree(buf);
> +       }
> +
> +       ret = intbufs_set_buffer(inst, HFI_BUFFER_INTERNAL_SCRATCH(ver));
> +       if (ret)
> +               goto err;
> +
> +       ret = intbufs_set_buffer(inst, HFI_BUFFER_INTERNAL_SCRATCH_1(ver));
> +       if (ret)
> +               goto err;
> +
> +       ret = intbufs_set_buffer(inst, HFI_BUFFER_INTERNAL_SCRATCH_2(ver));
> +       if (ret)
> +               goto err;
> +
> +       return 0;
> +err:
> +       return ret;
> +}
> +EXPORT_SYMBOL_GPL(venus_helper_intbufs_realloc);
> +
>  static u32 load_per_instance(struct venus_inst *inst)
>  {
>         u32 mbs;
> @@ -1050,6 +1096,42 @@ void venus_helper_vb2_stop_streaming(struct vb2_queue *q)
>  }
>  EXPORT_SYMBOL_GPL(venus_helper_vb2_stop_streaming);
>
> +int venus_helper_process_initial_cap_bufs(struct venus_inst *inst)
> +{
> +       struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
> +       struct v4l2_m2m_buffer *buf, *n;
> +       int ret;
> +
> +       v4l2_m2m_for_each_dst_buf_safe(m2m_ctx, buf, n) {
> +               ret = session_process_buf(inst, &buf->vb);
> +               if (ret) {
> +                       return_buf_error(inst, &buf->vb);
> +                       return ret;
> +               }
> +       }
> +
> +       return 0;
> +}
> +EXPORT_SYMBOL_GPL(venus_helper_process_initial_cap_bufs);
> +
> +int venus_helper_process_initial_out_bufs(struct venus_inst *inst)
> +{
> +       struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
> +       struct v4l2_m2m_buffer *buf, *n;
> +       int ret;
> +
> +       v4l2_m2m_for_each_src_buf_safe(m2m_ctx, buf, n) {
> +               ret = session_process_buf(inst, &buf->vb);
> +               if (ret) {
> +                       return_buf_error(inst, &buf->vb);
> +                       return ret;
> +               }
> +       }
> +
> +       return 0;
> +}
> +EXPORT_SYMBOL_GPL(venus_helper_process_initial_out_bufs);
> +
>  int venus_helper_vb2_start_streaming(struct venus_inst *inst)
>  {
>         struct venus_core *core = inst->core;
> diff --git a/drivers/media/platform/qcom/venus/helpers.h b/drivers/media/platform/qcom/venus/helpers.h
> index 24faae5abd93..2ec1c1a8b416 100644
> --- a/drivers/media/platform/qcom/venus/helpers.h
> +++ b/drivers/media/platform/qcom/venus/helpers.h
> @@ -69,4 +69,6 @@ int venus_helper_intbufs_realloc(struct venus_inst *inst);
>  int venus_helper_queue_dpb_bufs(struct venus_inst *inst);
>  int venus_helper_unregister_bufs(struct venus_inst *inst);
>  int venus_helper_load_scale_clocks(struct venus_core *core);
> +int venus_helper_process_initial_cap_bufs(struct venus_inst *inst);
> +int venus_helper_process_initial_out_bufs(struct venus_inst *inst);
>  #endif
> --
> 2.17.1
>
Stanimir Varbanov - Jan. 24, 2019, 8:54 a.m.
Hi Alex,

Thanks for the review!

On 1/24/19 10:43 AM, Alexandre Courbot wrote:
> On Fri, Jan 18, 2019 at 1:21 AM Stanimir Varbanov
> <stanimir.varbanov@linaro.org> wrote:
>>
>> This adds three more helper functions:
>>  * for internal buffers reallocation, applicable when we are doing
>> dynamic resolution change
>>  * for initial buffer processing of capture and output queue buffer
>> types
>>
>> All of them will be needed for stateful Codec API support.
>>
>> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
>> ---
>>  drivers/media/platform/qcom/venus/helpers.c | 82 +++++++++++++++++++++
>>  drivers/media/platform/qcom/venus/helpers.h |  2 +
>>  2 files changed, 84 insertions(+)
>>
>> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
>> index f33bbfea3576..637ce7b82d94 100644
>> --- a/drivers/media/platform/qcom/venus/helpers.c
>> +++ b/drivers/media/platform/qcom/venus/helpers.c
>> @@ -322,6 +322,52 @@ int venus_helper_intbufs_free(struct venus_inst *inst)
>>  }
>>  EXPORT_SYMBOL_GPL(venus_helper_intbufs_free);
>>
>> +int venus_helper_intbufs_realloc(struct venus_inst *inst)
> 
> Does this function actually reallocate buffers? It seems to just free
> what we had previously.

The function free all internal buffers except PERSIST. After that the
buffers are allocated in intbufs_set_buffer function (I know that the
function name is misleading).

> 
> 
>> +{
>> +       enum hfi_version ver = inst->core->res->hfi_version;
>> +       struct hfi_buffer_desc bd;
>> +       struct intbuf *buf, *n;
>> +       int ret;
>> +
>> +       list_for_each_entry_safe(buf, n, &inst->internalbufs, list) {
>> +               if (buf->type == HFI_BUFFER_INTERNAL_PERSIST ||
>> +                   buf->type == HFI_BUFFER_INTERNAL_PERSIST_1)
>> +                       continue;
>> +
>> +               memset(&bd, 0, sizeof(bd));
>> +               bd.buffer_size = buf->size;
>> +               bd.buffer_type = buf->type;
>> +               bd.num_buffers = 1;
>> +               bd.device_addr = buf->da;
>> +               bd.response_required = true;
>> +
>> +               ret = hfi_session_unset_buffers(inst, &bd);
>> +
>> +               dma_free_attrs(inst->core->dev, buf->size, buf->va, buf->da,
>> +                              buf->attrs);
>> +
>> +               list_del_init(&buf->list);
>> +               kfree(buf);
>> +       }
>> +
>> +       ret = intbufs_set_buffer(inst, HFI_BUFFER_INTERNAL_SCRATCH(ver));
>> +       if (ret)
>> +               goto err;
>> +
>> +       ret = intbufs_set_buffer(inst, HFI_BUFFER_INTERNAL_SCRATCH_1(ver));
>> +       if (ret)
>> +               goto err;
>> +
>> +       ret = intbufs_set_buffer(inst, HFI_BUFFER_INTERNAL_SCRATCH_2(ver));
>> +       if (ret)
>> +               goto err;
>> +
>> +       return 0;
>> +err:
>> +       return ret;
>> +}
>> +EXPORT_SYMBOL_GPL(venus_helper_intbufs_realloc);
>> +
Alexandre Courbot - Jan. 25, 2019, 5:47 a.m.
On Thu, Jan 24, 2019 at 5:54 PM Stanimir Varbanov
<stanimir.varbanov@linaro.org> wrote:
>
> Hi Alex,
>
> Thanks for the review!
>
> On 1/24/19 10:43 AM, Alexandre Courbot wrote:
> > On Fri, Jan 18, 2019 at 1:21 AM Stanimir Varbanov
> > <stanimir.varbanov@linaro.org> wrote:
> >>
> >> This adds three more helper functions:
> >>  * for internal buffers reallocation, applicable when we are doing
> >> dynamic resolution change
> >>  * for initial buffer processing of capture and output queue buffer
> >> types
> >>
> >> All of them will be needed for stateful Codec API support.
> >>
> >> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
> >> ---
> >>  drivers/media/platform/qcom/venus/helpers.c | 82 +++++++++++++++++++++
> >>  drivers/media/platform/qcom/venus/helpers.h |  2 +
> >>  2 files changed, 84 insertions(+)
> >>
> >> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
> >> index f33bbfea3576..637ce7b82d94 100644
> >> --- a/drivers/media/platform/qcom/venus/helpers.c
> >> +++ b/drivers/media/platform/qcom/venus/helpers.c
> >> @@ -322,6 +322,52 @@ int venus_helper_intbufs_free(struct venus_inst *inst)
> >>  }
> >>  EXPORT_SYMBOL_GPL(venus_helper_intbufs_free);
> >>
> >> +int venus_helper_intbufs_realloc(struct venus_inst *inst)
> >
> > Does this function actually reallocate buffers? It seems to just free
> > what we had previously.
>
> The function free all internal buffers except PERSIST. After that the
> buffers are allocated in intbufs_set_buffer function (I know that the
> function name is misleading).

Yeah, that's what I felt - do you think you can fix this for clarity?

Patch

diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
index f33bbfea3576..637ce7b82d94 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -322,6 +322,52 @@  int venus_helper_intbufs_free(struct venus_inst *inst)
 }
 EXPORT_SYMBOL_GPL(venus_helper_intbufs_free);
 
+int venus_helper_intbufs_realloc(struct venus_inst *inst)
+{
+	enum hfi_version ver = inst->core->res->hfi_version;
+	struct hfi_buffer_desc bd;
+	struct intbuf *buf, *n;
+	int ret;
+
+	list_for_each_entry_safe(buf, n, &inst->internalbufs, list) {
+		if (buf->type == HFI_BUFFER_INTERNAL_PERSIST ||
+		    buf->type == HFI_BUFFER_INTERNAL_PERSIST_1)
+			continue;
+
+		memset(&bd, 0, sizeof(bd));
+		bd.buffer_size = buf->size;
+		bd.buffer_type = buf->type;
+		bd.num_buffers = 1;
+		bd.device_addr = buf->da;
+		bd.response_required = true;
+
+		ret = hfi_session_unset_buffers(inst, &bd);
+
+		dma_free_attrs(inst->core->dev, buf->size, buf->va, buf->da,
+			       buf->attrs);
+
+		list_del_init(&buf->list);
+		kfree(buf);
+	}
+
+	ret = intbufs_set_buffer(inst, HFI_BUFFER_INTERNAL_SCRATCH(ver));
+	if (ret)
+		goto err;
+
+	ret = intbufs_set_buffer(inst, HFI_BUFFER_INTERNAL_SCRATCH_1(ver));
+	if (ret)
+		goto err;
+
+	ret = intbufs_set_buffer(inst, HFI_BUFFER_INTERNAL_SCRATCH_2(ver));
+	if (ret)
+		goto err;
+
+	return 0;
+err:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(venus_helper_intbufs_realloc);
+
 static u32 load_per_instance(struct venus_inst *inst)
 {
 	u32 mbs;
@@ -1050,6 +1096,42 @@  void venus_helper_vb2_stop_streaming(struct vb2_queue *q)
 }
 EXPORT_SYMBOL_GPL(venus_helper_vb2_stop_streaming);
 
+int venus_helper_process_initial_cap_bufs(struct venus_inst *inst)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
+	struct v4l2_m2m_buffer *buf, *n;
+	int ret;
+
+	v4l2_m2m_for_each_dst_buf_safe(m2m_ctx, buf, n) {
+		ret = session_process_buf(inst, &buf->vb);
+		if (ret) {
+			return_buf_error(inst, &buf->vb);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(venus_helper_process_initial_cap_bufs);
+
+int venus_helper_process_initial_out_bufs(struct venus_inst *inst)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
+	struct v4l2_m2m_buffer *buf, *n;
+	int ret;
+
+	v4l2_m2m_for_each_src_buf_safe(m2m_ctx, buf, n) {
+		ret = session_process_buf(inst, &buf->vb);
+		if (ret) {
+			return_buf_error(inst, &buf->vb);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(venus_helper_process_initial_out_bufs);
+
 int venus_helper_vb2_start_streaming(struct venus_inst *inst)
 {
 	struct venus_core *core = inst->core;
diff --git a/drivers/media/platform/qcom/venus/helpers.h b/drivers/media/platform/qcom/venus/helpers.h
index 24faae5abd93..2ec1c1a8b416 100644
--- a/drivers/media/platform/qcom/venus/helpers.h
+++ b/drivers/media/platform/qcom/venus/helpers.h
@@ -69,4 +69,6 @@  int venus_helper_intbufs_realloc(struct venus_inst *inst);
 int venus_helper_queue_dpb_bufs(struct venus_inst *inst);
 int venus_helper_unregister_bufs(struct venus_inst *inst);
 int venus_helper_load_scale_clocks(struct venus_core *core);
+int venus_helper_process_initial_cap_bufs(struct venus_inst *inst);
+int venus_helper_process_initial_out_bufs(struct venus_inst *inst);
 #endif

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