diff mbox series

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

Message ID 20190117162008.25217-8-stanimir.varbanov@linaro.org
State Superseded
Headers show
Series None | expand

Commit Message

Stanimir Varbanov Jan. 17, 2019, 4:20 p.m. UTC 
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(+)

-- 
2.17.1

Comments

Alexandre Courbot Jan. 25, 2019, 5:47 a.m. UTC | #1 
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?
diff mbox series

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