diff mbox series

[5/5] media: venus: Update core selection

Message ID 1560233130-27264-6-git-send-email-amasule@codeaurora.org (mailing list archive)
State Superseded, archived
Headers show
Series media: venus: Update clock scaling and core selection | expand

Commit Message

Aniket Masule June 11, 2019, 6:05 a.m. UTC 
Present core assignment is static. Introduced load balancing
across the cores. Load on earch core is calculated and core
with minimum load is assigned to given instance.

Signed-off-by: Aniket Masule <amasule@codeaurora.org>
---
 drivers/media/platform/qcom/venus/helpers.c | 50 +++++++++++++++++++++++++----
 drivers/media/platform/qcom/venus/helpers.h |  2 +-
 drivers/media/platform/qcom/venus/vdec.c    |  5 +--
 drivers/media/platform/qcom/venus/venc.c    |  4 ++-
 4 files changed, 51 insertions(+), 10 deletions(-)

Comments

Stanimir Varbanov June 17, 2019, 9:07 a.m. UTC | #1 
Hi Aniket,

On 6/11/19 9:05 AM, Aniket Masule wrote:
> Present core assignment is static. Introduced load balancing
> across the cores. Load on earch core is calculated and core
> with minimum load is assigned to given instance.
> 
> Signed-off-by: Aniket Masule <amasule@codeaurora.org>
> ---
>  drivers/media/platform/qcom/venus/helpers.c | 50 +++++++++++++++++++++++++----
>  drivers/media/platform/qcom/venus/helpers.h |  2 +-
>  drivers/media/platform/qcom/venus/vdec.c    |  5 +--
>  drivers/media/platform/qcom/venus/venc.c    |  4 ++-
>  4 files changed, 51 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
> index edb653e..38d617b 100644
> --- a/drivers/media/platform/qcom/venus/helpers.c
> +++ b/drivers/media/platform/qcom/venus/helpers.c
> @@ -497,6 +497,16 @@ static int load_scale_clocks(struct venus_inst *inst)
>  		return scale_clocks_vpu4(inst);
>  }
>  
> +int set_core_usage(struct venus_inst *inst, u32 usage)
> +{
> +	const u32 ptype = HFI_PROPERTY_CONFIG_VIDEOCORES_USAGE;
> +	struct hfi_videocores_usage_type cu;
> +
> +	cu.video_core_enable_mask = usage;
> +
> +	return hfi_session_set_property(inst, ptype, &cu);
> +}
> +
>  static void fill_buffer_desc(const struct venus_buffer *buf,
>  			     struct hfi_buffer_desc *bd, bool response)
>  {
> @@ -800,19 +810,47 @@ int venus_helper_set_work_mode(struct venus_inst *inst, u32 mode)
>  }
>  EXPORT_SYMBOL_GPL(venus_helper_set_work_mode);
>  
> -int venus_helper_set_core_usage(struct venus_inst *inst, u32 usage)
> +int venus_helper_decide_core(struct venus_inst *inst, u32 cores_max)

I think venus_helper_set_core is better?

>  {
> -	const u32 ptype = HFI_PROPERTY_CONFIG_VIDEOCORES_USAGE;
> -	struct hfi_videocores_usage_type cu;
> +	struct venus_core *core = inst->core;
> +	u32 min_core_id = 0, core0_load = 0, core1_load = 0;
> +	unsigned long min_load, max_freq, cur_inst_load;
> +	int ret;
>  
>  	if (!IS_V4(inst->core))
>  		return 0;
>  
> -	cu.video_core_enable_mask = usage;
> +	core0_load = load_per_core(core, VIDC_CORE_ID_1);
> +	core1_load = load_per_core(core, VIDC_CORE_ID_2);
>  
> -	return hfi_session_set_property(inst, ptype, &cu);
> +	min_core_id = core0_load < core1_load ? VIDC_CORE_ID_1 : VIDC_CORE_ID_2;
> +	min_load = min(core0_load, core1_load);
> +
> +	if (cores_max < VIDC_CORE_ID_1) {
> +		min_core_id = VIDC_CORE_ID_1;
> +		min_load = core0_load;
> +	}

could you please move that fragment just after IS_V4 check and return an
error if cores_max < VIDC_CORE_ID_1.

> +
> +	cur_inst_load = load_per_instance(inst) *
> +		inst->clk_data.codec_data->vpp_cycles;
> +	max_freq = core->res->freq_tbl[0].freq;
> +
> +	if ((cur_inst_load + min_load)	> max_freq) {
> +		dev_warn(core->dev, "HW is overloaded, needed: %lu max: %lu\n",
> +			 cur_inst_load, max_freq);
> +		return -EINVAL;
> +	}
> +
> +	ret = set_core_usage(inst, min_core_id);
> +
> +	if (ret)
> +		return ret;
> +
> +	inst->clk_data.core_id = min_core_id;
> +
> +	return 0;
>  }
> -EXPORT_SYMBOL_GPL(venus_helper_set_core_usage);
> +EXPORT_SYMBOL_GPL(venus_helper_decide_core);
>  
>  int venus_helper_init_codec_data(struct venus_inst *inst)
>  {
> diff --git a/drivers/media/platform/qcom/venus/helpers.h b/drivers/media/platform/qcom/venus/helpers.h
> index f9360a8..c41ceb3 100644
> --- a/drivers/media/platform/qcom/venus/helpers.h
> +++ b/drivers/media/platform/qcom/venus/helpers.h
> @@ -42,7 +42,7 @@ int venus_helper_set_output_resolution(struct venus_inst *inst,
>  				       u32 buftype);
>  int venus_helper_set_work_mode(struct venus_inst *inst, u32 mode);
>  int venus_helper_init_codec_data(struct venus_inst *inst);
> -int venus_helper_set_core_usage(struct venus_inst *inst, u32 usage);
> +int venus_helper_decide_core(struct venus_inst *inst, u32 cores_max);
>  int venus_helper_set_num_bufs(struct venus_inst *inst, unsigned int input_bufs,
>  			      unsigned int output_bufs,
>  			      unsigned int output2_bufs);
> diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
> index 51795fd..9f988ba 100644
> --- a/drivers/media/platform/qcom/venus/vdec.c
> +++ b/drivers/media/platform/qcom/venus/vdec.c
> @@ -544,14 +544,15 @@ static int vdec_output_conf(struct venus_inst *inst)
>  	u32 height = inst->out_height;
>  	u32 out_fmt, out2_fmt;
>  	bool ubwc = false;
> -	u32 ptype;
> +	u32 ptype, cores_max;
>  	int ret;
>  
>  	ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
>  	if (ret)
>  		return ret;
>  
> -	ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_1);
> +	cores_max = core_num_max(inst);

please move core_max calculation in the venus_helper_decide_core() here
and below.

> +	ret = venus_helper_decide_core(inst, cores_max);
>  	if (ret)
>  		return ret;
>  
> diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
> index 792cdce..ed39efd 100644
> --- a/drivers/media/platform/qcom/venus/venc.c
> +++ b/drivers/media/platform/qcom/venus/venc.c
> @@ -654,13 +654,15 @@ static int venc_set_properties(struct venus_inst *inst)
>  	struct hfi_quantization quant;
>  	struct hfi_quantization_range quant_range;
>  	u32 ptype, rate_control, bitrate, profile = 0, level = 0;
> +	u32 cores_max;
>  	int ret;
>  
>  	ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
>  	if (ret)
>  		return ret;
>  
> -	ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_2);
> +	cores_max = core_num_max(inst);
> +	ret = venus_helper_decide_core(inst, cores_max);
>  	if (ret)
>  		return ret;
>  
>
Aniket Masule June 20, 2019, 10:59 a.m. UTC | #2 
On 2019-06-17 14:37, Stanimir Varbanov wrote:
> Hi Aniket,
> 
> On 6/11/19 9:05 AM, Aniket Masule wrote:
>> Present core assignment is static. Introduced load balancing
>> across the cores. Load on earch core is calculated and core
>> with minimum load is assigned to given instance.
>> 
>> Signed-off-by: Aniket Masule <amasule@codeaurora.org>
>> ---
>>  drivers/media/platform/qcom/venus/helpers.c | 50 
>> +++++++++++++++++++++++++----
>>  drivers/media/platform/qcom/venus/helpers.h |  2 +-
>>  drivers/media/platform/qcom/venus/vdec.c    |  5 +--
>>  drivers/media/platform/qcom/venus/venc.c    |  4 ++-
>>  4 files changed, 51 insertions(+), 10 deletions(-)
>> 
>> diff --git a/drivers/media/platform/qcom/venus/helpers.c 
>> b/drivers/media/platform/qcom/venus/helpers.c
>> index edb653e..38d617b 100644
>> --- a/drivers/media/platform/qcom/venus/helpers.c
>> +++ b/drivers/media/platform/qcom/venus/helpers.c
>> @@ -497,6 +497,16 @@ static int load_scale_clocks(struct venus_inst 
>> *inst)
>>  		return scale_clocks_vpu4(inst);
>>  }
>> 
>> +int set_core_usage(struct venus_inst *inst, u32 usage)
>> +{
>> +	const u32 ptype = HFI_PROPERTY_CONFIG_VIDEOCORES_USAGE;
>> +	struct hfi_videocores_usage_type cu;
>> +
>> +	cu.video_core_enable_mask = usage;
>> +
>> +	return hfi_session_set_property(inst, ptype, &cu);
>> +}
>> +
>>  static void fill_buffer_desc(const struct venus_buffer *buf,
>>  			     struct hfi_buffer_desc *bd, bool response)
>>  {
>> @@ -800,19 +810,47 @@ int venus_helper_set_work_mode(struct venus_inst 
>> *inst, u32 mode)
>>  }
>>  EXPORT_SYMBOL_GPL(venus_helper_set_work_mode);
>> 
>> -int venus_helper_set_core_usage(struct venus_inst *inst, u32 usage)
>> +int venus_helper_decide_core(struct venus_inst *inst, u32 cores_max)
> 
> I think venus_helper_set_core is better?
> 
Sure Stan.
>>  {
>> -	const u32 ptype = HFI_PROPERTY_CONFIG_VIDEOCORES_USAGE;
>> -	struct hfi_videocores_usage_type cu;
>> +	struct venus_core *core = inst->core;
>> +	u32 min_core_id = 0, core0_load = 0, core1_load = 0;
>> +	unsigned long min_load, max_freq, cur_inst_load;
>> +	int ret;
>> 
>>  	if (!IS_V4(inst->core))
>>  		return 0;
>> 
>> -	cu.video_core_enable_mask = usage;
>> +	core0_load = load_per_core(core, VIDC_CORE_ID_1);
>> +	core1_load = load_per_core(core, VIDC_CORE_ID_2);
>> 
>> -	return hfi_session_set_property(inst, ptype, &cu);
>> +	min_core_id = core0_load < core1_load ? VIDC_CORE_ID_1 : 
>> VIDC_CORE_ID_2;
>> +	min_load = min(core0_load, core1_load);
>> +
>> +	if (cores_max < VIDC_CORE_ID_1) {
>> +		min_core_id = VIDC_CORE_ID_1;
>> +		min_load = core0_load;
>> +	}
> 
> could you please move that fragment just after IS_V4 check and return 
> an
> error if cores_max < VIDC_CORE_ID_1.
> 
Instead of "if cores_max < VIDC_CORE_ID_1", we need to check if 
cores_max < VIDC_CORE_ID_2
and set core the single core as minimum load core. I can't return after 
this check immidiately
as it needs to be checked whether load can be accommodated or not.
>> +
>> +	cur_inst_load = load_per_instance(inst) *
>> +		inst->clk_data.codec_data->vpp_cycles;
>> +	max_freq = core->res->freq_tbl[0].freq;
>> +
>> +	if ((cur_inst_load + min_load)	> max_freq) {
>> +		dev_warn(core->dev, "HW is overloaded, needed: %lu max: %lu\n",
>> +			 cur_inst_load, max_freq);
>> +		return -EINVAL;
>> +	}
>> +
>> +	ret = set_core_usage(inst, min_core_id);
>> +
>> +	if (ret)
>> +		return ret;
>> +
>> +	inst->clk_data.core_id = min_core_id;
>> +
>> +	return 0;
>>  }
>> -EXPORT_SYMBOL_GPL(venus_helper_set_core_usage);
>> +EXPORT_SYMBOL_GPL(venus_helper_decide_core);
>> 
>>  int venus_helper_init_codec_data(struct venus_inst *inst)
>>  {
>> diff --git a/drivers/media/platform/qcom/venus/helpers.h 
>> b/drivers/media/platform/qcom/venus/helpers.h
>> index f9360a8..c41ceb3 100644
>> --- a/drivers/media/platform/qcom/venus/helpers.h
>> +++ b/drivers/media/platform/qcom/venus/helpers.h
>> @@ -42,7 +42,7 @@ int venus_helper_set_output_resolution(struct 
>> venus_inst *inst,
>>  				       u32 buftype);
>>  int venus_helper_set_work_mode(struct venus_inst *inst, u32 mode);
>>  int venus_helper_init_codec_data(struct venus_inst *inst);
>> -int venus_helper_set_core_usage(struct venus_inst *inst, u32 usage);
>> +int venus_helper_decide_core(struct venus_inst *inst, u32 cores_max);
>>  int venus_helper_set_num_bufs(struct venus_inst *inst, unsigned int 
>> input_bufs,
>>  			      unsigned int output_bufs,
>>  			      unsigned int output2_bufs);
>> diff --git a/drivers/media/platform/qcom/venus/vdec.c 
>> b/drivers/media/platform/qcom/venus/vdec.c
>> index 51795fd..9f988ba 100644
>> --- a/drivers/media/platform/qcom/venus/vdec.c
>> +++ b/drivers/media/platform/qcom/venus/vdec.c
>> @@ -544,14 +544,15 @@ static int vdec_output_conf(struct venus_inst 
>> *inst)
>>  	u32 height = inst->out_height;
>>  	u32 out_fmt, out2_fmt;
>>  	bool ubwc = false;
>> -	u32 ptype;
>> +	u32 ptype, cores_max;
>>  	int ret;
>> 
>>  	ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
>>  	if (ret)
>>  		return ret;
>> 
>> -	ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_1);
>> +	cores_max = core_num_max(inst);
> 
> please move core_max calculation in the venus_helper_decide_core() here
> and below.
> 
Yes Stan.
>> +	ret = venus_helper_decide_core(inst, cores_max);
>>  	if (ret)
>>  		return ret;
>> 
>> diff --git a/drivers/media/platform/qcom/venus/venc.c 
>> b/drivers/media/platform/qcom/venus/venc.c
>> index 792cdce..ed39efd 100644
>> --- a/drivers/media/platform/qcom/venus/venc.c
>> +++ b/drivers/media/platform/qcom/venus/venc.c
>> @@ -654,13 +654,15 @@ static int venc_set_properties(struct venus_inst 
>> *inst)
>>  	struct hfi_quantization quant;
>>  	struct hfi_quantization_range quant_range;
>>  	u32 ptype, rate_control, bitrate, profile = 0, level = 0;
>> +	u32 cores_max;
>>  	int ret;
>> 
>>  	ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
>>  	if (ret)
>>  		return ret;
>> 
>> -	ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_2);
>> +	cores_max = core_num_max(inst);
>> +	ret = venus_helper_decide_core(inst, cores_max);
>>  	if (ret)
>>  		return ret;
>> 
>>
diff mbox series

Patch

diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
index edb653e..38d617b 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -497,6 +497,16 @@  static int load_scale_clocks(struct venus_inst *inst)
 		return scale_clocks_vpu4(inst);
 }
 
+int set_core_usage(struct venus_inst *inst, u32 usage)
+{
+	const u32 ptype = HFI_PROPERTY_CONFIG_VIDEOCORES_USAGE;
+	struct hfi_videocores_usage_type cu;
+
+	cu.video_core_enable_mask = usage;
+
+	return hfi_session_set_property(inst, ptype, &cu);
+}
+
 static void fill_buffer_desc(const struct venus_buffer *buf,
 			     struct hfi_buffer_desc *bd, bool response)
 {
@@ -800,19 +810,47 @@  int venus_helper_set_work_mode(struct venus_inst *inst, u32 mode)
 }
 EXPORT_SYMBOL_GPL(venus_helper_set_work_mode);
 
-int venus_helper_set_core_usage(struct venus_inst *inst, u32 usage)
+int venus_helper_decide_core(struct venus_inst *inst, u32 cores_max)
 {
-	const u32 ptype = HFI_PROPERTY_CONFIG_VIDEOCORES_USAGE;
-	struct hfi_videocores_usage_type cu;
+	struct venus_core *core = inst->core;
+	u32 min_core_id = 0, core0_load = 0, core1_load = 0;
+	unsigned long min_load, max_freq, cur_inst_load;
+	int ret;
 
 	if (!IS_V4(inst->core))
 		return 0;
 
-	cu.video_core_enable_mask = usage;
+	core0_load = load_per_core(core, VIDC_CORE_ID_1);
+	core1_load = load_per_core(core, VIDC_CORE_ID_2);
 
-	return hfi_session_set_property(inst, ptype, &cu);
+	min_core_id = core0_load < core1_load ? VIDC_CORE_ID_1 : VIDC_CORE_ID_2;
+	min_load = min(core0_load, core1_load);
+
+	if (cores_max < VIDC_CORE_ID_1) {
+		min_core_id = VIDC_CORE_ID_1;
+		min_load = core0_load;
+	}
+
+	cur_inst_load = load_per_instance(inst) *
+		inst->clk_data.codec_data->vpp_cycles;
+	max_freq = core->res->freq_tbl[0].freq;
+
+	if ((cur_inst_load + min_load)	> max_freq) {
+		dev_warn(core->dev, "HW is overloaded, needed: %lu max: %lu\n",
+			 cur_inst_load, max_freq);
+		return -EINVAL;
+	}
+
+	ret = set_core_usage(inst, min_core_id);
+
+	if (ret)
+		return ret;
+
+	inst->clk_data.core_id = min_core_id;
+
+	return 0;
 }
-EXPORT_SYMBOL_GPL(venus_helper_set_core_usage);
+EXPORT_SYMBOL_GPL(venus_helper_decide_core);
 
 int venus_helper_init_codec_data(struct venus_inst *inst)
 {
diff --git a/drivers/media/platform/qcom/venus/helpers.h b/drivers/media/platform/qcom/venus/helpers.h
index f9360a8..c41ceb3 100644
--- a/drivers/media/platform/qcom/venus/helpers.h
+++ b/drivers/media/platform/qcom/venus/helpers.h
@@ -42,7 +42,7 @@  int venus_helper_set_output_resolution(struct venus_inst *inst,
 				       u32 buftype);
 int venus_helper_set_work_mode(struct venus_inst *inst, u32 mode);
 int venus_helper_init_codec_data(struct venus_inst *inst);
-int venus_helper_set_core_usage(struct venus_inst *inst, u32 usage);
+int venus_helper_decide_core(struct venus_inst *inst, u32 cores_max);
 int venus_helper_set_num_bufs(struct venus_inst *inst, unsigned int input_bufs,
 			      unsigned int output_bufs,
 			      unsigned int output2_bufs);
diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index 51795fd..9f988ba 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -544,14 +544,15 @@  static int vdec_output_conf(struct venus_inst *inst)
 	u32 height = inst->out_height;
 	u32 out_fmt, out2_fmt;
 	bool ubwc = false;
-	u32 ptype;
+	u32 ptype, cores_max;
 	int ret;
 
 	ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
 	if (ret)
 		return ret;
 
-	ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_1);
+	cores_max = core_num_max(inst);
+	ret = venus_helper_decide_core(inst, cores_max);
 	if (ret)
 		return ret;
 
diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
index 792cdce..ed39efd 100644
--- a/drivers/media/platform/qcom/venus/venc.c
+++ b/drivers/media/platform/qcom/venus/venc.c
@@ -654,13 +654,15 @@  static int venc_set_properties(struct venus_inst *inst)
 	struct hfi_quantization quant;
 	struct hfi_quantization_range quant_range;
 	u32 ptype, rate_control, bitrate, profile = 0, level = 0;
+	u32 cores_max;
 	int ret;
 
 	ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
 	if (ret)
 		return ret;
 
-	ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_2);
+	cores_max = core_num_max(inst);
+	ret = venus_helper_decide_core(inst, cores_max);
 	if (ret)
 		return ret;