On Fri Feb 7 13:25:04 2025 +0530, Vedang Nagar wrote:
> Based on the hardware capabilities, add a check during start_streaming
> and queue_setup, whether the video session is supported by the hardware.
>
> Signed-off-by: Vedang Nagar <quic_vna...@quicinc.com>
> Tested-by: Stefan Schmidt <stefan.schm...@linaro.org> # x1e80100 (Dell XPS 13
> 9345)
> Reviewed-by: Stefan Schmidt <stefan.schm...@linaro.org>
> Tested-by: Neil Armstrong <neil.armstr...@linaro.org> # on SM8550-QRD
> Tested-by: Neil Armstrong <neil.armstr...@linaro.org> # on SM8550-HDK
> Signed-off-by: Dikshita Agarwal <quic_diksh...@quicinc.com>
> Signed-off-by: Hans Verkuil <hverk...@xs4all.nl>
Patch committed.
Thanks,
Hans Verkuil
.../platform/qcom/iris/iris_platform_common.h | 1 +
.../platform/qcom/iris/iris_platform_sm8550.c | 1 +
drivers/media/platform/qcom/iris/iris_vb2.c | 96 ++++++++++++++++++++++
3 files changed, 98 insertions(+)
---
diff --git a/drivers/media/platform/qcom/iris/iris_platform_common.h
b/drivers/media/platform/qcom/iris/iris_platform_common.h
index de0388a100c3..a5a7d6838d16 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_common.h
+++ b/drivers/media/platform/qcom/iris/iris_platform_common.h
@@ -144,6 +144,7 @@ struct iris_platform_data {
struct ubwc_config_data *ubwc_config;
u32 num_vpp_pipe;
u32 max_session_count;
+ u32 max_core_mbpf;
const u32 *input_config_params;
unsigned int input_config_params_size;
const u32 *output_config_params;
diff --git a/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
b/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
index dc51df71c377..8d23978f5cee 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
+++ b/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
@@ -233,6 +233,7 @@ struct iris_platform_data sm8550_data = {
.ubwc_config = &ubwc_config_sm8550,
.num_vpp_pipe = 4,
.max_session_count = 16,
+ .max_core_mbpf = ((8192 * 4352) / 256) * 2,
.input_config_params =
sm8550_vdec_input_config_params,
.input_config_params_size =
diff --git a/drivers/media/platform/qcom/iris/iris_vb2.c
b/drivers/media/platform/qcom/iris/iris_vb2.c
index 59fc133c9f98..712d37723ec3 100644
--- a/drivers/media/platform/qcom/iris/iris_vb2.c
+++ b/drivers/media/platform/qcom/iris/iris_vb2.c
@@ -11,6 +11,94 @@
#include "iris_vb2.h"
#include "iris_vdec.h"
+static int iris_check_core_mbpf(struct iris_inst *inst)
+{
+ struct iris_core *core = inst->core;
+ struct iris_inst *instance;
+ u32 total_mbpf = 0;
+
+ mutex_lock(&core->lock);
+ list_for_each_entry(instance, &core->instances, list)
+ total_mbpf += iris_get_mbpf(instance);
+ mutex_unlock(&core->lock);
+
+ if (total_mbpf > core->iris_platform_data->max_core_mbpf)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int iris_check_inst_mbpf(struct iris_inst *inst)
+{
+ struct platform_inst_caps *caps;
+ u32 mbpf, max_mbpf;
+
+ caps = inst->core->iris_platform_data->inst_caps;
+ max_mbpf = caps->max_mbpf;
+ mbpf = iris_get_mbpf(inst);
+ if (mbpf > max_mbpf)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int iris_check_resolution_supported(struct iris_inst *inst)
+{
+ u32 width, height, min_width, min_height, max_width, max_height;
+ struct platform_inst_caps *caps;
+
+ caps = inst->core->iris_platform_data->inst_caps;
+ width = inst->fmt_src->fmt.pix_mp.width;
+ height = inst->fmt_src->fmt.pix_mp.height;
+
+ min_width = caps->min_frame_width;
+ max_width = caps->max_frame_width;
+ min_height = caps->min_frame_height;
+ max_height = caps->max_frame_height;
+
+ if (!(min_width <= width && width <= max_width) ||
+ !(min_height <= height && height <= max_height))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int iris_check_session_supported(struct iris_inst *inst)
+{
+ struct iris_core *core = inst->core;
+ struct iris_inst *instance = NULL;
+ bool found = false;
+ int ret;
+
+ list_for_each_entry(instance, &core->instances, list) {
+ if (instance == inst)
+ found = true;
+ }
+
+ if (!found) {
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ ret = iris_check_core_mbpf(inst);
+ if (ret)
+ goto exit;
+
+ ret = iris_check_inst_mbpf(inst);
+ if (ret)
+ goto exit;
+
+ ret = iris_check_resolution_supported(inst);
+ if (ret)
+ goto exit;
+
+ return 0;
+exit:
+ dev_err(inst->core->dev, "current session not supported(%d)\n", ret);
+
+ return ret;
+}
+
int iris_vb2_buf_init(struct vb2_buffer *vb2)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
@@ -48,6 +136,10 @@ int iris_vb2_queue_setup(struct vb2_queue *q,
goto unlock;
}
+ ret = iris_check_session_supported(inst);
+ if (ret)
+ goto unlock;
+
if (!inst->once_per_session_set) {
inst->once_per_session_set = true;
@@ -95,6 +187,10 @@ int iris_vb2_start_streaming(struct vb2_queue *q, unsigned
int count)
goto error;
}
+ ret = iris_check_session_supported(inst);
+ if (ret)
+ goto error;
+
if (V4L2_TYPE_IS_OUTPUT(q->type))
ret = iris_vdec_streamon_input(inst);
else if (V4L2_TYPE_IS_CAPTURE(q->type))
