diff mbox series

[v2,1/3] drm/msm/dpu: clean up references of DPU custom bus scaling

Message ID 20181010092434.853-2-skolluku@codeaurora.org (mailing list archive)
State New, archived
Headers show
Series Use interconnect API in MDSS on SDM845 | expand

Commit Message

Sravanthi Kollukuduru Oct. 10, 2018, 9:24 a.m. UTC
Since the upstream interconnect bus framework has landed
upstream, the existing references of custom bus scaling
needs to be cleaned up.

Changes in v2:
	- Fixed build error due to partial clean up

Signed-off-by: Sravanthi Kollukuduru <skolluku@codeaurora.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c    | 157 ++++++++++-------------
 drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h    |   4 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c         |  13 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c |  47 ++-----
 drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h |  68 ----------
 drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h        |  21 +--
 6 files changed, 86 insertions(+), 224 deletions(-)

Comments

Sean Paul Nov. 14, 2018, 3:49 p.m. UTC | #1
On Wed, Oct 10, 2018 at 02:54:32PM +0530, Sravanthi Kollukuduru wrote:
> Since the upstream interconnect bus framework has landed
> upstream, the existing references of custom bus scaling
> needs to be cleaned up.

Just a few nits below.

> 
> Changes in v2:
> 	- Fixed build error due to partial clean up
> 
> Signed-off-by: Sravanthi Kollukuduru <skolluku@codeaurora.org>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c    | 157 ++++++++++-------------
>  drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h    |   4 +-
>  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c         |  13 +-
>  drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c |  47 ++-----
>  drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h |  68 ----------
>  drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h        |  21 +--
>  6 files changed, 86 insertions(+), 224 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> index 41c5191f9056..4ee6f0dd14f7 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> @@ -90,7 +90,6 @@ static void _dpu_core_perf_calc_crtc(struct dpu_kms *kms,
>  		struct dpu_core_perf_params *perf)
>  {
>  	struct dpu_crtc_state *dpu_cstate;
> -	int i;
>  
>  	if (!kms || !kms->catalog || !crtc || !state || !perf) {
>  		DPU_ERROR("invalid parameters\n");
> @@ -101,35 +100,24 @@ static void _dpu_core_perf_calc_crtc(struct dpu_kms *kms,
>  	memset(perf, 0, sizeof(struct dpu_core_perf_params));
>  
>  	if (!dpu_cstate->bw_control) {
> -		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
> -			perf->bw_ctl[i] = kms->catalog->perf.max_bw_high *
> +		perf->bw_ctl = kms->catalog->perf.max_bw_high *
>  					1000ULL;
> -			perf->max_per_pipe_ib[i] = perf->bw_ctl[i];
> -		}
> +		perf->max_per_pipe_ib = perf->bw_ctl;
>  		perf->core_clk_rate = kms->perf.max_core_clk_rate;
>  	} else if (kms->perf.perf_tune.mode == DPU_PERF_MODE_MINIMUM) {
> -		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
> -			perf->bw_ctl[i] = 0;
> -			perf->max_per_pipe_ib[i] = 0;
> -		}
> +		perf->bw_ctl = 0;
> +		perf->max_per_pipe_ib = 0;
>  		perf->core_clk_rate = 0;
>  	} else if (kms->perf.perf_tune.mode == DPU_PERF_MODE_FIXED) {
> -		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
> -			perf->bw_ctl[i] = kms->perf.fix_core_ab_vote;
> -			perf->max_per_pipe_ib[i] = kms->perf.fix_core_ib_vote;
> -		}
> +		perf->bw_ctl = kms->perf.fix_core_ab_vote;
> +		perf->max_per_pipe_ib = kms->perf.fix_core_ib_vote;
>  		perf->core_clk_rate = kms->perf.fix_core_clk_rate;
>  	}
>  
>  	DPU_DEBUG(
> -		"crtc=%d clk_rate=%llu core_ib=%llu core_ab=%llu llcc_ib=%llu llcc_ab=%llu mem_ib=%llu mem_ab=%llu\n",
> +		"crtc=%d clk_rate=%llu core_ib=%llu core_ab=%llu\n",
>  			crtc->base.id, perf->core_clk_rate,
> -			perf->max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_MNOC],
> -			perf->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_MNOC],
> -			perf->max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_LLCC],
> -			perf->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_LLCC],
> -			perf->max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_EBI],
> -			perf->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_EBI]);
> +			perf->max_per_pipe_ib, perf->bw_ctl);
>  }
>  
>  int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
> @@ -142,7 +130,6 @@ int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
>  	struct dpu_crtc_state *dpu_cstate;
>  	struct drm_crtc *tmp_crtc;
>  	struct dpu_kms *kms;
> -	int i;
>  
>  	if (!crtc || !state) {
>  		DPU_ERROR("invalid crtc\n");
> @@ -164,31 +151,28 @@ int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
>  	/* obtain new values */
>  	_dpu_core_perf_calc_crtc(kms, crtc, state, &dpu_cstate->new_perf);
>  
> -	for (i = DPU_POWER_HANDLE_DBUS_ID_MNOC;
> -			i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
> -		bw_sum_of_intfs = dpu_cstate->new_perf.bw_ctl[i];
> -		curr_client_type = dpu_crtc_get_client_type(crtc);
> +	bw_sum_of_intfs = dpu_cstate->new_perf.bw_ctl;
> +	curr_client_type = dpu_crtc_get_client_type(crtc);
>  
> -		drm_for_each_crtc(tmp_crtc, crtc->dev) {
> -			if (_dpu_core_perf_crtc_is_power_on(tmp_crtc) &&
> -			    (dpu_crtc_get_client_type(tmp_crtc) ==
> -					    curr_client_type) &&
> -			    (tmp_crtc != crtc)) {
> -				struct dpu_crtc_state *tmp_cstate =
> -					to_dpu_crtc_state(tmp_crtc->state);
> -
> -				DPU_DEBUG("crtc:%d bw:%llu ctrl:%d\n",
> -					tmp_crtc->base.id,
> -					tmp_cstate->new_perf.bw_ctl[i],
> -					tmp_cstate->bw_control);
> -				/*
> -				 * For bw check only use the bw if the
> -				 * atomic property has been already set
> -				 */
> -				if (tmp_cstate->bw_control)
> -					bw_sum_of_intfs +=
> -						tmp_cstate->new_perf.bw_ctl[i];
> -			}
> +	drm_for_each_crtc(tmp_crtc, crtc->dev) {
> +		if (_dpu_core_perf_crtc_is_power_on(tmp_crtc) &&
> +		    (dpu_crtc_get_client_type(tmp_crtc) ==
> +				    curr_client_type) &&

Can go on one line now

> +		    (tmp_crtc != crtc)) {
> +			struct dpu_crtc_state *tmp_cstate =
> +				to_dpu_crtc_state(tmp_crtc->state);
> +
> +			DPU_DEBUG("crtc:%d bw:%llu ctrl:%d\n",
> +				tmp_crtc->base.id,
> +				tmp_cstate->new_perf.bw_ctl,
> +				tmp_cstate->bw_control);
> +			/*
> +			 * For bw check only use the bw if the
> +			 * atomic property has been already set
> +			 */
> +			if (tmp_cstate->bw_control)
> +				bw_sum_of_intfs +=
> +					tmp_cstate->new_perf.bw_ctl;

Also fits on a line now

>  		}
>  
>  		/* convert bandwidth to kb */
> @@ -219,9 +203,9 @@ int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
>  }
>  
>  static int _dpu_core_perf_crtc_update_bus(struct dpu_kms *kms,
> -		struct drm_crtc *crtc, u32 bus_id)
> +		struct drm_crtc *crtc)
>  {
> -	struct dpu_core_perf_params perf = { { 0 } };
> +	struct dpu_core_perf_params perf = { 0 };
>  	enum dpu_crtc_client_type curr_client_type
>  					= dpu_crtc_get_client_type(crtc);
>  	struct drm_crtc *tmp_crtc;
> @@ -234,13 +218,12 @@ static int _dpu_core_perf_crtc_update_bus(struct dpu_kms *kms,
>  				dpu_crtc_get_client_type(tmp_crtc)) {
>  			dpu_cstate = to_dpu_crtc_state(tmp_crtc->state);
>  
> -			perf.max_per_pipe_ib[bus_id] =
> -				max(perf.max_per_pipe_ib[bus_id],
> -				dpu_cstate->new_perf.max_per_pipe_ib[bus_id]);
> +			perf.max_per_pipe_ib =
> +				max(perf.max_per_pipe_ib,
> +				dpu_cstate->new_perf.max_per_pipe_ib);
>  
> -			DPU_DEBUG("crtc=%d bus_id=%d bw=%llu\n",
> -				tmp_crtc->base.id, bus_id,
> -				dpu_cstate->new_perf.bw_ctl[bus_id]);
> +			DPU_DEBUG("crtc=%d bw=%llu\n",
> +				tmp_crtc->base.id, dpu_cstate->new_perf.bw_ctl);
>  		}
>  	}
>  	return ret;
> @@ -260,7 +243,6 @@ void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc)
>  	struct dpu_crtc *dpu_crtc;
>  	struct dpu_crtc_state *dpu_cstate;
>  	struct dpu_kms *kms;
> -	int i;
>  
>  	if (!crtc) {
>  		DPU_ERROR("invalid crtc\n");
> @@ -296,10 +278,8 @@ void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc)
>  	if (kms->perf.enable_bw_release) {
>  		trace_dpu_cmd_release_bw(crtc->base.id);
>  		DPU_DEBUG("Release BW crtc=%d\n", crtc->base.id);
> -		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
> -			dpu_crtc->cur_perf.bw_ctl[i] = 0;
> -			_dpu_core_perf_crtc_update_bus(kms, crtc, i);
> -		}
> +		dpu_crtc->cur_perf.bw_ctl = 0;
> +		_dpu_core_perf_crtc_update_bus(kms, crtc);
>  	}
>  }
>  
> @@ -342,11 +322,10 @@ int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
>  		int params_changed, bool stop_req)
>  {
>  	struct dpu_core_perf_params *new, *old;
> -	int update_bus = 0, update_clk = 0;
> +	bool update_bus = false, update_clk = false;
>  	u64 clk_rate = 0;
>  	struct dpu_crtc *dpu_crtc;
>  	struct dpu_crtc_state *dpu_cstate;
> -	int i;
>  	struct msm_drm_private *priv;
>  	struct dpu_kms *kms;
>  	int ret;
> @@ -373,7 +352,6 @@ int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
>  	new = &dpu_cstate->new_perf;
>  
>  	if (_dpu_core_perf_crtc_is_power_on(crtc) && !stop_req) {
> -		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
>  			/*
>  			 * cases for bus bandwidth update.
>  			 * 1. new bandwidth vote - "ab or ib vote" is higher
> @@ -381,23 +359,22 @@ int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
>  			 * 2. new bandwidth vote - "ab or ib vote" is lower
>  			 *    than current vote at end of commit or stop.
>  			 */
> -			if ((params_changed && ((new->bw_ctl[i] >
> -						old->bw_ctl[i]) ||
> -				  (new->max_per_pipe_ib[i] >
> -						old->max_per_pipe_ib[i]))) ||
> -			    (!params_changed && ((new->bw_ctl[i] <
> -						old->bw_ctl[i]) ||
> -				  (new->max_per_pipe_ib[i] <
> -						old->max_per_pipe_ib[i])))) {
> +			if ((params_changed && ((new->bw_ctl >
> +						old->bw_ctl) ||
> +				  (new->max_per_pipe_ib >
> +						old->max_per_pipe_ib))) ||
> +			    (!params_changed && ((new->bw_ctl <
> +						old->bw_ctl) ||
> +				  (new->max_per_pipe_ib <
> +						old->max_per_pipe_ib)))) {

You can condense this by joining some lines together. Bonus points if you can
simplify it further.

>  				DPU_DEBUG(
>  					"crtc=%d p=%d new_bw=%llu,old_bw=%llu\n",
>  					crtc->base.id, params_changed,
> -					new->bw_ctl[i], old->bw_ctl[i]);
> -				old->bw_ctl[i] = new->bw_ctl[i];
> -				old->max_per_pipe_ib[i] =
> -						new->max_per_pipe_ib[i];
> -				update_bus |= BIT(i);
> -			}
> +					new->bw_ctl, old->bw_ctl);
> +				old->bw_ctl = new->bw_ctl;
> +				old->max_per_pipe_ib =
> +						new->max_per_pipe_ib;

Fits on one line now

> +				update_bus = true;
>  		}
>  
>  		if ((params_changed &&
> @@ -405,30 +382,26 @@ int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
>  				(!params_changed &&
>  				(new->core_clk_rate < old->core_clk_rate))) {
>  			old->core_clk_rate = new->core_clk_rate;
> -			update_clk = 1;
> +			update_clk = true;
>  		}
>  	} else {
>  		DPU_DEBUG("crtc=%d disable\n", crtc->base.id);
>  		memset(old, 0, sizeof(*old));
>  		memset(new, 0, sizeof(*new));
> -		update_bus = ~0;
> -		update_clk = 1;
> +		update_bus = true;
> +		update_clk = true;
>  	}
> +
>  	trace_dpu_perf_crtc_update(crtc->base.id,
> -				new->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_MNOC],
> -				new->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_LLCC],
> -				new->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_EBI],
> -				new->core_clk_rate, stop_req,
> -				update_bus, update_clk);
> -
> -	for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
> -		if (update_bus & BIT(i)) {
> -			ret = _dpu_core_perf_crtc_update_bus(kms, crtc, i);
> -			if (ret) {
> -				DPU_ERROR("crtc-%d: failed to update bw vote for bus-%d\n",
> -					  crtc->base.id, i);
> -				return ret;
> -			}
> +				new->bw_ctl, new->core_clk_rate,
> +				stop_req, update_bus, update_clk);
> +
> +	if (update_bus) {
> +		ret = _dpu_core_perf_crtc_update_bus(kms, crtc);
> +		if (ret) {
> +			DPU_ERROR("crtc-%d: failed to update bus bw vote\n",
> +				  crtc->base.id);
> +			return ret;
>  		}
>  	}
>  
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
> index fbcbe0c7527a..0fb276929dc5 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
> @@ -30,8 +30,8 @@
>   * @core_clk_rate: core clock rate request
>   */
>  struct dpu_core_perf_params {
> -	u64 max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_MAX];
> -	u64 bw_ctl[DPU_POWER_HANDLE_DBUS_ID_MAX];
> +	u64 max_per_pipe_ib;
> +	u64 bw_ctl;
>  	u64 core_clk_rate;
>  };
>  
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index c5ba753d441c..841476d77f5c 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -1373,21 +1373,14 @@ static int dpu_crtc_debugfs_state_show(struct seq_file *s, void *v)
>  {
>  	struct drm_crtc *crtc = (struct drm_crtc *) s->private;
>  	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
> -	int i;
>  
>  	seq_printf(s, "client type: %d\n", dpu_crtc_get_client_type(crtc));
>  	seq_printf(s, "intf_mode: %d\n", dpu_crtc_get_intf_mode(crtc));
>  	seq_printf(s, "core_clk_rate: %llu\n",
>  			dpu_crtc->cur_perf.core_clk_rate);
> -	for (i = DPU_POWER_HANDLE_DBUS_ID_MNOC;
> -			i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
> -		seq_printf(s, "bw_ctl[%s]: %llu\n",
> -				dpu_power_handle_get_dbus_name(i),
> -				dpu_crtc->cur_perf.bw_ctl[i]);
> -		seq_printf(s, "max_per_pipe_ib[%s]: %llu\n",
> -				dpu_power_handle_get_dbus_name(i),
> -				dpu_crtc->cur_perf.max_per_pipe_ib[i]);
> -	}
> +	seq_printf(s, "bw_ctl: %llu\n", dpu_crtc->cur_perf.bw_ctl);
> +	seq_printf(s, "max_per_pipe_ib: %llu\n",
> +				dpu_crtc->cur_perf.max_per_pipe_ib);
>  
>  	return 0;
>  }
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c
> index fc14116789f2..d58d01544731 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c
> @@ -24,20 +24,6 @@
>  #include "dpu_power_handle.h"
>  #include "dpu_trace.h"
>  
> -static const char *data_bus_name[DPU_POWER_HANDLE_DBUS_ID_MAX] = {
> -	[DPU_POWER_HANDLE_DBUS_ID_MNOC] = "qcom,dpu-data-bus",
> -	[DPU_POWER_HANDLE_DBUS_ID_LLCC] = "qcom,dpu-llcc-bus",
> -	[DPU_POWER_HANDLE_DBUS_ID_EBI] = "qcom,dpu-ebi-bus",
> -};
> -
> -const char *dpu_power_handle_get_dbus_name(u32 bus_id)
> -{
> -	if (bus_id < DPU_POWER_HANDLE_DBUS_ID_MAX)
> -		return data_bus_name[bus_id];
> -
> -	return NULL;
> -}
> -
>  static void dpu_power_event_trigger_locked(struct dpu_power_handle *phandle,
>  		u32 event_type)
>  {
> @@ -66,7 +52,6 @@ struct dpu_power_client *dpu_power_client_create(
>  
>  	mutex_lock(&phandle->phandle_lock);
>  	strlcpy(client->name, client_name, MAX_CLIENT_NAME_LEN);
> -	client->usecase_ndx = VOTE_INDEX_DISABLE;
>  	client->id = id;
>  	client->active = true;
>  	pr_debug("client %s created:%pK id :%d\n", client_name,
> @@ -143,8 +128,6 @@ int dpu_power_resource_enable(struct dpu_power_handle *phandle,
>  	struct dpu_power_client *pclient, bool enable)
>  {
>  	bool changed = false;
> -	u32 max_usecase_ndx = VOTE_INDEX_DISABLE, prev_usecase_ndx;
> -	struct dpu_power_client *client;
>  	u32 event_type;
>  
>  	if (!phandle || !pclient) {
> @@ -153,31 +136,19 @@ int dpu_power_resource_enable(struct dpu_power_handle *phandle,
>  	}
>  
>  	mutex_lock(&phandle->phandle_lock);
> -	if (enable)
> +	if (enable) {
>  		pclient->refcount++;
> -	else if (pclient->refcount)
> +		if (pclient->refcount == 1)
> +			changed = true;
> +	} else if (pclient->refcount) {
>  		pclient->refcount--;
> -
> -	if (pclient->refcount)
> -		pclient->usecase_ndx = VOTE_INDEX_LOW;
> -	else
> -		pclient->usecase_ndx = VOTE_INDEX_DISABLE;
> -
> -	list_for_each_entry(client, &phandle->power_client_clist, list) {
> -		if (client->usecase_ndx < VOTE_INDEX_MAX &&
> -		    client->usecase_ndx > max_usecase_ndx)
> -			max_usecase_ndx = client->usecase_ndx;
> -	}
> -
> -	if (phandle->current_usecase_ndx != max_usecase_ndx) {
> -		changed = true;
> -		prev_usecase_ndx = phandle->current_usecase_ndx;
> -		phandle->current_usecase_ndx = max_usecase_ndx;
> +		if (!pclient->refcount)
> +			changed = true;
>  	}
>  
> -	pr_debug("%pS: changed=%d current idx=%d request client %s id:%u enable:%d refcount:%d\n",
> -		__builtin_return_address(0), changed, max_usecase_ndx,
> -		pclient->name, pclient->id, enable, pclient->refcount);
> +	pr_debug("%pS:changed=%d client %s id:%u enable:%d refcount:%d\n",
> +		__builtin_return_address(0), changed, pclient->name,
> +		pclient->id, enable, pclient->refcount);
>  
>  	if (!changed)
>  		goto end;
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h
> index a65b7a297f21..b1a5ae4d6f4e 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h
> @@ -16,76 +16,28 @@
>  
>  #define MAX_CLIENT_NAME_LEN 128
>  
> -#define DPU_POWER_HANDLE_ENABLE_BUS_AB_QUOTA	0
> -#define DPU_POWER_HANDLE_DISABLE_BUS_AB_QUOTA	0
> -#define DPU_POWER_HANDLE_ENABLE_BUS_IB_QUOTA	1600000000
> -#define DPU_POWER_HANDLE_DISABLE_BUS_IB_QUOTA	0
> -
>  #include "dpu_io_util.h"
>  
>  /* events will be triggered on power handler enable/disable */
>  #define DPU_POWER_EVENT_DISABLE	BIT(0)
>  #define DPU_POWER_EVENT_ENABLE	BIT(1)
>  
> -/**
> - * mdss_bus_vote_type: register bus vote type
> - * VOTE_INDEX_DISABLE: removes the client vote
> - * VOTE_INDEX_LOW: keeps the lowest vote for register bus
> - * VOTE_INDEX_MAX: invalid
> - */
> -enum mdss_bus_vote_type {
> -	VOTE_INDEX_DISABLE,
> -	VOTE_INDEX_LOW,
> -	VOTE_INDEX_MAX,
> -};
> -
> -/**
> - * enum dpu_power_handle_data_bus_client - type of axi bus clients
> - * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_RT: core real-time bus client
> - * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_NRT: core non-real-time bus client
> - * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX: maximum number of bus client type
> - */
> -enum dpu_power_handle_data_bus_client {
> -	DPU_POWER_HANDLE_DATA_BUS_CLIENT_RT,
> -	DPU_POWER_HANDLE_DATA_BUS_CLIENT_NRT,
> -	DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX
> -};
> -
> -/**
> - * enum DPU_POWER_HANDLE_DBUS_ID - data bus identifier
> - * @DPU_POWER_HANDLE_DBUS_ID_MNOC: DPU/MNOC data bus
> - * @DPU_POWER_HANDLE_DBUS_ID_LLCC: MNOC/LLCC data bus
> - * @DPU_POWER_HANDLE_DBUS_ID_EBI: LLCC/EBI data bus
> - */
> -enum DPU_POWER_HANDLE_DBUS_ID {
> -	DPU_POWER_HANDLE_DBUS_ID_MNOC,
> -	DPU_POWER_HANDLE_DBUS_ID_LLCC,
> -	DPU_POWER_HANDLE_DBUS_ID_EBI,
> -	DPU_POWER_HANDLE_DBUS_ID_MAX,
> -};
> -
>  /**
>   * struct dpu_power_client: stores the power client for dpu driver
>   * @name:	name of the client
> - * @usecase_ndx: current regs bus vote type
>   * @refcount:	current refcount if multiple modules are using same
>   *              same client for enable/disable. Power module will
>   *              aggregate the refcount and vote accordingly for this
>   *              client.
>   * @id:		assigned during create. helps for debugging.
>   * @list:	list to attach power handle master list
> - * @ab:         arbitrated bandwidth for each bus client
> - * @ib:         instantaneous bandwidth for each bus client
>   * @active:	inidcates the state of dpu power handle
>   */
>  struct dpu_power_client {
>  	char name[MAX_CLIENT_NAME_LEN];
> -	short usecase_ndx;
>  	short refcount;
>  	u32 id;
>  	struct list_head list;
> -	u64 ab[DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX];
> -	u64 ib[DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX];
>  	bool active;
>  };
>  
> @@ -112,14 +64,12 @@ struct dpu_power_event {
>   * @client_clist: master list to store all clients
>   * @phandle_lock: lock to synchronize the enable/disable
>   * @dev: pointer to device structure
> - * @usecase_ndx: current usecase index
>   * @event_list: current power handle event list
>   */
>  struct dpu_power_handle {
>  	struct list_head power_client_clist;
>  	struct mutex phandle_lock;
>  	struct device *dev;
> -	u32 current_usecase_ndx;
>  	struct list_head event_list;
>  };
>  
> @@ -172,17 +122,6 @@ void dpu_power_client_destroy(struct dpu_power_handle *phandle,
>  int dpu_power_resource_enable(struct dpu_power_handle *pdata,
>  	struct dpu_power_client *pclient, bool enable);
>  
> -/**
> - * dpu_power_data_bus_bandwidth_ctrl() - control data bus bandwidth enable
> - * @phandle:  power handle containing the resources
> - * @client: client information to bandwidth control
> - * @enable: true to enable bandwidth for data base
> - *
> - * Return: none
> - */
> -void dpu_power_data_bus_bandwidth_ctrl(struct dpu_power_handle *phandle,
> -		struct dpu_power_client *pclient, int enable);
> -
>  /**
>   * dpu_power_handle_register_event - register a callback function for an event.
>   *	Clients can register for multiple events with a single register.
> @@ -207,11 +146,4 @@ struct dpu_power_event *dpu_power_handle_register_event(
>  void dpu_power_handle_unregister_event(struct dpu_power_handle *phandle,
>  		struct dpu_power_event *event);
>  
> -/**
> - * dpu_power_handle_get_dbus_name - get name of given data bus identifier
> - * @bus_id:	data bus identifier
> - * Return:	Pointer to name string if success; NULL otherwise
> - */
> -const char *dpu_power_handle_get_dbus_name(u32 bus_id);
> -
>  #endif /* _DPU_POWER_HANDLE_H_ */
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> index 0c122e173892..f5ed47a1556a 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> @@ -167,16 +167,13 @@ TRACE_EVENT(dpu_trace_counter,
>  )
>  
>  TRACE_EVENT(dpu_perf_crtc_update,
> -	TP_PROTO(u32 crtc, u64 bw_ctl_mnoc, u64 bw_ctl_llcc,
> -			u64 bw_ctl_ebi, u32 core_clk_rate,
> -			bool stop_req, u32 update_bus, u32 update_clk),
> -	TP_ARGS(crtc, bw_ctl_mnoc, bw_ctl_llcc, bw_ctl_ebi, core_clk_rate,
> +	TP_PROTO(u32 crtc, u64 bw_ctl, u32 core_clk_rate,
> +			bool stop_req, bool update_bus, bool update_clk),
> +	TP_ARGS(crtc, bw_ctl, core_clk_rate,
>  		stop_req, update_bus, update_clk),
>  	TP_STRUCT__entry(
>  			__field(u32, crtc)
> -			__field(u64, bw_ctl_mnoc)
> -			__field(u64, bw_ctl_llcc)
> -			__field(u64, bw_ctl_ebi)
> +			__field(u64, bw_ctl)
>  			__field(u32, core_clk_rate)
>  			__field(bool, stop_req)
>  			__field(u32, update_bus)
> @@ -184,20 +181,16 @@ TRACE_EVENT(dpu_perf_crtc_update,
>  	),
>  	TP_fast_assign(
>  			__entry->crtc = crtc;
> -			__entry->bw_ctl_mnoc = bw_ctl_mnoc;
> -			__entry->bw_ctl_llcc = bw_ctl_llcc;
> -			__entry->bw_ctl_ebi = bw_ctl_ebi;
> +			__entry->bw_ctl = bw_ctl;
>  			__entry->core_clk_rate = core_clk_rate;
>  			__entry->stop_req = stop_req;
>  			__entry->update_bus = update_bus;
>  			__entry->update_clk = update_clk;
>  	),
>  	 TP_printk(
> -		"crtc=%d bw_mnoc=%llu bw_llcc=%llu bw_ebi=%llu clk_rate=%u stop_req=%d u_bus=%d u_clk=%d",
> +		"crtc=%d bw_ctl=%llu clk_rate=%u stop_req=%d u_bus=%d u_clk=%d",
>  			__entry->crtc,
> -			__entry->bw_ctl_mnoc,
> -			__entry->bw_ctl_llcc,
> -			__entry->bw_ctl_ebi,
> +			__entry->bw_ctl,
>  			__entry->core_clk_rate,
>  			__entry->stop_req,
>  			__entry->update_bus,
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
Sravanthi Kollukuduru Nov. 15, 2018, 12:22 p.m. UTC | #2
On 2018-11-14 21:19, Sean Paul wrote:
> On Wed, Oct 10, 2018 at 02:54:32PM +0530, Sravanthi Kollukuduru wrote:
>> Since the upstream interconnect bus framework has landed
>> upstream, the existing references of custom bus scaling
>> needs to be cleaned up.
> 
> Just a few nits below.
Sure, will make the changes.
> 
>> 
>> Changes in v2:
>> 	- Fixed build error due to partial clean up
>> 
>> Signed-off-by: Sravanthi Kollukuduru <skolluku@codeaurora.org>
>> ---
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c    | 157 
>> ++++++++++-------------
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h    |   4 +-
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c         |  13 +-
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c |  47 ++-----
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h |  68 ----------
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h        |  21 +--
>>  6 files changed, 86 insertions(+), 224 deletions(-)
>> 
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c 
>> b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
>> index 41c5191f9056..4ee6f0dd14f7 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
>> @@ -90,7 +90,6 @@ static void _dpu_core_perf_calc_crtc(struct dpu_kms 
>> *kms,
>>  		struct dpu_core_perf_params *perf)
>>  {
>>  	struct dpu_crtc_state *dpu_cstate;
>> -	int i;
>> 
>>  	if (!kms || !kms->catalog || !crtc || !state || !perf) {
>>  		DPU_ERROR("invalid parameters\n");
>> @@ -101,35 +100,24 @@ static void _dpu_core_perf_calc_crtc(struct 
>> dpu_kms *kms,
>>  	memset(perf, 0, sizeof(struct dpu_core_perf_params));
>> 
>>  	if (!dpu_cstate->bw_control) {
>> -		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
>> -			perf->bw_ctl[i] = kms->catalog->perf.max_bw_high *
>> +		perf->bw_ctl = kms->catalog->perf.max_bw_high *
>>  					1000ULL;
>> -			perf->max_per_pipe_ib[i] = perf->bw_ctl[i];
>> -		}
>> +		perf->max_per_pipe_ib = perf->bw_ctl;
>>  		perf->core_clk_rate = kms->perf.max_core_clk_rate;
>>  	} else if (kms->perf.perf_tune.mode == DPU_PERF_MODE_MINIMUM) {
>> -		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
>> -			perf->bw_ctl[i] = 0;
>> -			perf->max_per_pipe_ib[i] = 0;
>> -		}
>> +		perf->bw_ctl = 0;
>> +		perf->max_per_pipe_ib = 0;
>>  		perf->core_clk_rate = 0;
>>  	} else if (kms->perf.perf_tune.mode == DPU_PERF_MODE_FIXED) {
>> -		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
>> -			perf->bw_ctl[i] = kms->perf.fix_core_ab_vote;
>> -			perf->max_per_pipe_ib[i] = kms->perf.fix_core_ib_vote;
>> -		}
>> +		perf->bw_ctl = kms->perf.fix_core_ab_vote;
>> +		perf->max_per_pipe_ib = kms->perf.fix_core_ib_vote;
>>  		perf->core_clk_rate = kms->perf.fix_core_clk_rate;
>>  	}
>> 
>>  	DPU_DEBUG(
>> -		"crtc=%d clk_rate=%llu core_ib=%llu core_ab=%llu llcc_ib=%llu 
>> llcc_ab=%llu mem_ib=%llu mem_ab=%llu\n",
>> +		"crtc=%d clk_rate=%llu core_ib=%llu core_ab=%llu\n",
>>  			crtc->base.id, perf->core_clk_rate,
>> -			perf->max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_MNOC],
>> -			perf->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_MNOC],
>> -			perf->max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_LLCC],
>> -			perf->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_LLCC],
>> -			perf->max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_EBI],
>> -			perf->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_EBI]);
>> +			perf->max_per_pipe_ib, perf->bw_ctl);
>>  }
>> 
>>  int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
>> @@ -142,7 +130,6 @@ int dpu_core_perf_crtc_check(struct drm_crtc 
>> *crtc,
>>  	struct dpu_crtc_state *dpu_cstate;
>>  	struct drm_crtc *tmp_crtc;
>>  	struct dpu_kms *kms;
>> -	int i;
>> 
>>  	if (!crtc || !state) {
>>  		DPU_ERROR("invalid crtc\n");
>> @@ -164,31 +151,28 @@ int dpu_core_perf_crtc_check(struct drm_crtc 
>> *crtc,
>>  	/* obtain new values */
>>  	_dpu_core_perf_calc_crtc(kms, crtc, state, &dpu_cstate->new_perf);
>> 
>> -	for (i = DPU_POWER_HANDLE_DBUS_ID_MNOC;
>> -			i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
>> -		bw_sum_of_intfs = dpu_cstate->new_perf.bw_ctl[i];
>> -		curr_client_type = dpu_crtc_get_client_type(crtc);
>> +	bw_sum_of_intfs = dpu_cstate->new_perf.bw_ctl;
>> +	curr_client_type = dpu_crtc_get_client_type(crtc);
>> 
>> -		drm_for_each_crtc(tmp_crtc, crtc->dev) {
>> -			if (_dpu_core_perf_crtc_is_power_on(tmp_crtc) &&
>> -			    (dpu_crtc_get_client_type(tmp_crtc) ==
>> -					    curr_client_type) &&
>> -			    (tmp_crtc != crtc)) {
>> -				struct dpu_crtc_state *tmp_cstate =
>> -					to_dpu_crtc_state(tmp_crtc->state);
>> -
>> -				DPU_DEBUG("crtc:%d bw:%llu ctrl:%d\n",
>> -					tmp_crtc->base.id,
>> -					tmp_cstate->new_perf.bw_ctl[i],
>> -					tmp_cstate->bw_control);
>> -				/*
>> -				 * For bw check only use the bw if the
>> -				 * atomic property has been already set
>> -				 */
>> -				if (tmp_cstate->bw_control)
>> -					bw_sum_of_intfs +=
>> -						tmp_cstate->new_perf.bw_ctl[i];
>> -			}
>> +	drm_for_each_crtc(tmp_crtc, crtc->dev) {
>> +		if (_dpu_core_perf_crtc_is_power_on(tmp_crtc) &&
>> +		    (dpu_crtc_get_client_type(tmp_crtc) ==
>> +				    curr_client_type) &&
> 
> Can go on one line now
> 
>> +		    (tmp_crtc != crtc)) {
>> +			struct dpu_crtc_state *tmp_cstate =
>> +				to_dpu_crtc_state(tmp_crtc->state);
>> +
>> +			DPU_DEBUG("crtc:%d bw:%llu ctrl:%d\n",
>> +				tmp_crtc->base.id,
>> +				tmp_cstate->new_perf.bw_ctl,
>> +				tmp_cstate->bw_control);
>> +			/*
>> +			 * For bw check only use the bw if the
>> +			 * atomic property has been already set
>> +			 */
>> +			if (tmp_cstate->bw_control)
>> +				bw_sum_of_intfs +=
>> +					tmp_cstate->new_perf.bw_ctl;
> 
> Also fits on a line now
> 
>>  		}
>> 
>>  		/* convert bandwidth to kb */
>> @@ -219,9 +203,9 @@ int dpu_core_perf_crtc_check(struct drm_crtc 
>> *crtc,
>>  }
>> 
>>  static int _dpu_core_perf_crtc_update_bus(struct dpu_kms *kms,
>> -		struct drm_crtc *crtc, u32 bus_id)
>> +		struct drm_crtc *crtc)
>>  {
>> -	struct dpu_core_perf_params perf = { { 0 } };
>> +	struct dpu_core_perf_params perf = { 0 };
>>  	enum dpu_crtc_client_type curr_client_type
>>  					= dpu_crtc_get_client_type(crtc);
>>  	struct drm_crtc *tmp_crtc;
>> @@ -234,13 +218,12 @@ static int _dpu_core_perf_crtc_update_bus(struct 
>> dpu_kms *kms,
>>  				dpu_crtc_get_client_type(tmp_crtc)) {
>>  			dpu_cstate = to_dpu_crtc_state(tmp_crtc->state);
>> 
>> -			perf.max_per_pipe_ib[bus_id] =
>> -				max(perf.max_per_pipe_ib[bus_id],
>> -				dpu_cstate->new_perf.max_per_pipe_ib[bus_id]);
>> +			perf.max_per_pipe_ib =
>> +				max(perf.max_per_pipe_ib,
>> +				dpu_cstate->new_perf.max_per_pipe_ib);
>> 
>> -			DPU_DEBUG("crtc=%d bus_id=%d bw=%llu\n",
>> -				tmp_crtc->base.id, bus_id,
>> -				dpu_cstate->new_perf.bw_ctl[bus_id]);
>> +			DPU_DEBUG("crtc=%d bw=%llu\n",
>> +				tmp_crtc->base.id, dpu_cstate->new_perf.bw_ctl);
>>  		}
>>  	}
>>  	return ret;
>> @@ -260,7 +243,6 @@ void dpu_core_perf_crtc_release_bw(struct drm_crtc 
>> *crtc)
>>  	struct dpu_crtc *dpu_crtc;
>>  	struct dpu_crtc_state *dpu_cstate;
>>  	struct dpu_kms *kms;
>> -	int i;
>> 
>>  	if (!crtc) {
>>  		DPU_ERROR("invalid crtc\n");
>> @@ -296,10 +278,8 @@ void dpu_core_perf_crtc_release_bw(struct 
>> drm_crtc *crtc)
>>  	if (kms->perf.enable_bw_release) {
>>  		trace_dpu_cmd_release_bw(crtc->base.id);
>>  		DPU_DEBUG("Release BW crtc=%d\n", crtc->base.id);
>> -		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
>> -			dpu_crtc->cur_perf.bw_ctl[i] = 0;
>> -			_dpu_core_perf_crtc_update_bus(kms, crtc, i);
>> -		}
>> +		dpu_crtc->cur_perf.bw_ctl = 0;
>> +		_dpu_core_perf_crtc_update_bus(kms, crtc);
>>  	}
>>  }
>> 
>> @@ -342,11 +322,10 @@ int dpu_core_perf_crtc_update(struct drm_crtc 
>> *crtc,
>>  		int params_changed, bool stop_req)
>>  {
>>  	struct dpu_core_perf_params *new, *old;
>> -	int update_bus = 0, update_clk = 0;
>> +	bool update_bus = false, update_clk = false;
>>  	u64 clk_rate = 0;
>>  	struct dpu_crtc *dpu_crtc;
>>  	struct dpu_crtc_state *dpu_cstate;
>> -	int i;
>>  	struct msm_drm_private *priv;
>>  	struct dpu_kms *kms;
>>  	int ret;
>> @@ -373,7 +352,6 @@ int dpu_core_perf_crtc_update(struct drm_crtc 
>> *crtc,
>>  	new = &dpu_cstate->new_perf;
>> 
>>  	if (_dpu_core_perf_crtc_is_power_on(crtc) && !stop_req) {
>> -		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
>>  			/*
>>  			 * cases for bus bandwidth update.
>>  			 * 1. new bandwidth vote - "ab or ib vote" is higher
>> @@ -381,23 +359,22 @@ int dpu_core_perf_crtc_update(struct drm_crtc 
>> *crtc,
>>  			 * 2. new bandwidth vote - "ab or ib vote" is lower
>>  			 *    than current vote at end of commit or stop.
>>  			 */
>> -			if ((params_changed && ((new->bw_ctl[i] >
>> -						old->bw_ctl[i]) ||
>> -				  (new->max_per_pipe_ib[i] >
>> -						old->max_per_pipe_ib[i]))) ||
>> -			    (!params_changed && ((new->bw_ctl[i] <
>> -						old->bw_ctl[i]) ||
>> -				  (new->max_per_pipe_ib[i] <
>> -						old->max_per_pipe_ib[i])))) {
>> +			if ((params_changed && ((new->bw_ctl >
>> +						old->bw_ctl) ||
>> +				  (new->max_per_pipe_ib >
>> +						old->max_per_pipe_ib))) ||
>> +			    (!params_changed && ((new->bw_ctl <
>> +						old->bw_ctl) ||
>> +				  (new->max_per_pipe_ib <
>> +						old->max_per_pipe_ib)))) {
> 
> You can condense this by joining some lines together. Bonus points if 
> you can
> simplify it further.
> 
>>  				DPU_DEBUG(
>>  					"crtc=%d p=%d new_bw=%llu,old_bw=%llu\n",
>>  					crtc->base.id, params_changed,
>> -					new->bw_ctl[i], old->bw_ctl[i]);
>> -				old->bw_ctl[i] = new->bw_ctl[i];
>> -				old->max_per_pipe_ib[i] =
>> -						new->max_per_pipe_ib[i];
>> -				update_bus |= BIT(i);
>> -			}
>> +					new->bw_ctl, old->bw_ctl);
>> +				old->bw_ctl = new->bw_ctl;
>> +				old->max_per_pipe_ib =
>> +						new->max_per_pipe_ib;
> 
> Fits on one line now
> 
>> +				update_bus = true;
>>  		}
>> 
>>  		if ((params_changed &&
>> @@ -405,30 +382,26 @@ int dpu_core_perf_crtc_update(struct drm_crtc 
>> *crtc,
>>  				(!params_changed &&
>>  				(new->core_clk_rate < old->core_clk_rate))) {
>>  			old->core_clk_rate = new->core_clk_rate;
>> -			update_clk = 1;
>> +			update_clk = true;
>>  		}
>>  	} else {
>>  		DPU_DEBUG("crtc=%d disable\n", crtc->base.id);
>>  		memset(old, 0, sizeof(*old));
>>  		memset(new, 0, sizeof(*new));
>> -		update_bus = ~0;
>> -		update_clk = 1;
>> +		update_bus = true;
>> +		update_clk = true;
>>  	}
>> +
>>  	trace_dpu_perf_crtc_update(crtc->base.id,
>> -				new->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_MNOC],
>> -				new->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_LLCC],
>> -				new->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_EBI],
>> -				new->core_clk_rate, stop_req,
>> -				update_bus, update_clk);
>> -
>> -	for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
>> -		if (update_bus & BIT(i)) {
>> -			ret = _dpu_core_perf_crtc_update_bus(kms, crtc, i);
>> -			if (ret) {
>> -				DPU_ERROR("crtc-%d: failed to update bw vote for bus-%d\n",
>> -					  crtc->base.id, i);
>> -				return ret;
>> -			}
>> +				new->bw_ctl, new->core_clk_rate,
>> +				stop_req, update_bus, update_clk);
>> +
>> +	if (update_bus) {
>> +		ret = _dpu_core_perf_crtc_update_bus(kms, crtc);
>> +		if (ret) {
>> +			DPU_ERROR("crtc-%d: failed to update bus bw vote\n",
>> +				  crtc->base.id);
>> +			return ret;
>>  		}
>>  	}
>> 
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h 
>> b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
>> index fbcbe0c7527a..0fb276929dc5 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
>> @@ -30,8 +30,8 @@
>>   * @core_clk_rate: core clock rate request
>>   */
>>  struct dpu_core_perf_params {
>> -	u64 max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_MAX];
>> -	u64 bw_ctl[DPU_POWER_HANDLE_DBUS_ID_MAX];
>> +	u64 max_per_pipe_ib;
>> +	u64 bw_ctl;
>>  	u64 core_clk_rate;
>>  };
>> 
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c 
>> b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
>> index c5ba753d441c..841476d77f5c 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
>> @@ -1373,21 +1373,14 @@ static int dpu_crtc_debugfs_state_show(struct 
>> seq_file *s, void *v)
>>  {
>>  	struct drm_crtc *crtc = (struct drm_crtc *) s->private;
>>  	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
>> -	int i;
>> 
>>  	seq_printf(s, "client type: %d\n", dpu_crtc_get_client_type(crtc));
>>  	seq_printf(s, "intf_mode: %d\n", dpu_crtc_get_intf_mode(crtc));
>>  	seq_printf(s, "core_clk_rate: %llu\n",
>>  			dpu_crtc->cur_perf.core_clk_rate);
>> -	for (i = DPU_POWER_HANDLE_DBUS_ID_MNOC;
>> -			i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
>> -		seq_printf(s, "bw_ctl[%s]: %llu\n",
>> -				dpu_power_handle_get_dbus_name(i),
>> -				dpu_crtc->cur_perf.bw_ctl[i]);
>> -		seq_printf(s, "max_per_pipe_ib[%s]: %llu\n",
>> -				dpu_power_handle_get_dbus_name(i),
>> -				dpu_crtc->cur_perf.max_per_pipe_ib[i]);
>> -	}
>> +	seq_printf(s, "bw_ctl: %llu\n", dpu_crtc->cur_perf.bw_ctl);
>> +	seq_printf(s, "max_per_pipe_ib: %llu\n",
>> +				dpu_crtc->cur_perf.max_per_pipe_ib);
>> 
>>  	return 0;
>>  }
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c 
>> b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c
>> index fc14116789f2..d58d01544731 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c
>> @@ -24,20 +24,6 @@
>>  #include "dpu_power_handle.h"
>>  #include "dpu_trace.h"
>> 
>> -static const char *data_bus_name[DPU_POWER_HANDLE_DBUS_ID_MAX] = {
>> -	[DPU_POWER_HANDLE_DBUS_ID_MNOC] = "qcom,dpu-data-bus",
>> -	[DPU_POWER_HANDLE_DBUS_ID_LLCC] = "qcom,dpu-llcc-bus",
>> -	[DPU_POWER_HANDLE_DBUS_ID_EBI] = "qcom,dpu-ebi-bus",
>> -};
>> -
>> -const char *dpu_power_handle_get_dbus_name(u32 bus_id)
>> -{
>> -	if (bus_id < DPU_POWER_HANDLE_DBUS_ID_MAX)
>> -		return data_bus_name[bus_id];
>> -
>> -	return NULL;
>> -}
>> -
>>  static void dpu_power_event_trigger_locked(struct dpu_power_handle 
>> *phandle,
>>  		u32 event_type)
>>  {
>> @@ -66,7 +52,6 @@ struct dpu_power_client *dpu_power_client_create(
>> 
>>  	mutex_lock(&phandle->phandle_lock);
>>  	strlcpy(client->name, client_name, MAX_CLIENT_NAME_LEN);
>> -	client->usecase_ndx = VOTE_INDEX_DISABLE;
>>  	client->id = id;
>>  	client->active = true;
>>  	pr_debug("client %s created:%pK id :%d\n", client_name,
>> @@ -143,8 +128,6 @@ int dpu_power_resource_enable(struct 
>> dpu_power_handle *phandle,
>>  	struct dpu_power_client *pclient, bool enable)
>>  {
>>  	bool changed = false;
>> -	u32 max_usecase_ndx = VOTE_INDEX_DISABLE, prev_usecase_ndx;
>> -	struct dpu_power_client *client;
>>  	u32 event_type;
>> 
>>  	if (!phandle || !pclient) {
>> @@ -153,31 +136,19 @@ int dpu_power_resource_enable(struct 
>> dpu_power_handle *phandle,
>>  	}
>> 
>>  	mutex_lock(&phandle->phandle_lock);
>> -	if (enable)
>> +	if (enable) {
>>  		pclient->refcount++;
>> -	else if (pclient->refcount)
>> +		if (pclient->refcount == 1)
>> +			changed = true;
>> +	} else if (pclient->refcount) {
>>  		pclient->refcount--;
>> -
>> -	if (pclient->refcount)
>> -		pclient->usecase_ndx = VOTE_INDEX_LOW;
>> -	else
>> -		pclient->usecase_ndx = VOTE_INDEX_DISABLE;
>> -
>> -	list_for_each_entry(client, &phandle->power_client_clist, list) {
>> -		if (client->usecase_ndx < VOTE_INDEX_MAX &&
>> -		    client->usecase_ndx > max_usecase_ndx)
>> -			max_usecase_ndx = client->usecase_ndx;
>> -	}
>> -
>> -	if (phandle->current_usecase_ndx != max_usecase_ndx) {
>> -		changed = true;
>> -		prev_usecase_ndx = phandle->current_usecase_ndx;
>> -		phandle->current_usecase_ndx = max_usecase_ndx;
>> +		if (!pclient->refcount)
>> +			changed = true;
>>  	}
>> 
>> -	pr_debug("%pS: changed=%d current idx=%d request client %s id:%u 
>> enable:%d refcount:%d\n",
>> -		__builtin_return_address(0), changed, max_usecase_ndx,
>> -		pclient->name, pclient->id, enable, pclient->refcount);
>> +	pr_debug("%pS:changed=%d client %s id:%u enable:%d refcount:%d\n",
>> +		__builtin_return_address(0), changed, pclient->name,
>> +		pclient->id, enable, pclient->refcount);
>> 
>>  	if (!changed)
>>  		goto end;
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h 
>> b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h
>> index a65b7a297f21..b1a5ae4d6f4e 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h
>> @@ -16,76 +16,28 @@
>> 
>>  #define MAX_CLIENT_NAME_LEN 128
>> 
>> -#define DPU_POWER_HANDLE_ENABLE_BUS_AB_QUOTA	0
>> -#define DPU_POWER_HANDLE_DISABLE_BUS_AB_QUOTA	0
>> -#define DPU_POWER_HANDLE_ENABLE_BUS_IB_QUOTA	1600000000
>> -#define DPU_POWER_HANDLE_DISABLE_BUS_IB_QUOTA	0
>> -
>>  #include "dpu_io_util.h"
>> 
>>  /* events will be triggered on power handler enable/disable */
>>  #define DPU_POWER_EVENT_DISABLE	BIT(0)
>>  #define DPU_POWER_EVENT_ENABLE	BIT(1)
>> 
>> -/**
>> - * mdss_bus_vote_type: register bus vote type
>> - * VOTE_INDEX_DISABLE: removes the client vote
>> - * VOTE_INDEX_LOW: keeps the lowest vote for register bus
>> - * VOTE_INDEX_MAX: invalid
>> - */
>> -enum mdss_bus_vote_type {
>> -	VOTE_INDEX_DISABLE,
>> -	VOTE_INDEX_LOW,
>> -	VOTE_INDEX_MAX,
>> -};
>> -
>> -/**
>> - * enum dpu_power_handle_data_bus_client - type of axi bus clients
>> - * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_RT: core real-time bus client
>> - * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_NRT: core non-real-time bus 
>> client
>> - * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX: maximum number of bus 
>> client type
>> - */
>> -enum dpu_power_handle_data_bus_client {
>> -	DPU_POWER_HANDLE_DATA_BUS_CLIENT_RT,
>> -	DPU_POWER_HANDLE_DATA_BUS_CLIENT_NRT,
>> -	DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX
>> -};
>> -
>> -/**
>> - * enum DPU_POWER_HANDLE_DBUS_ID - data bus identifier
>> - * @DPU_POWER_HANDLE_DBUS_ID_MNOC: DPU/MNOC data bus
>> - * @DPU_POWER_HANDLE_DBUS_ID_LLCC: MNOC/LLCC data bus
>> - * @DPU_POWER_HANDLE_DBUS_ID_EBI: LLCC/EBI data bus
>> - */
>> -enum DPU_POWER_HANDLE_DBUS_ID {
>> -	DPU_POWER_HANDLE_DBUS_ID_MNOC,
>> -	DPU_POWER_HANDLE_DBUS_ID_LLCC,
>> -	DPU_POWER_HANDLE_DBUS_ID_EBI,
>> -	DPU_POWER_HANDLE_DBUS_ID_MAX,
>> -};
>> -
>>  /**
>>   * struct dpu_power_client: stores the power client for dpu driver
>>   * @name:	name of the client
>> - * @usecase_ndx: current regs bus vote type
>>   * @refcount:	current refcount if multiple modules are using same
>>   *              same client for enable/disable. Power module will
>>   *              aggregate the refcount and vote accordingly for this
>>   *              client.
>>   * @id:		assigned during create. helps for debugging.
>>   * @list:	list to attach power handle master list
>> - * @ab:         arbitrated bandwidth for each bus client
>> - * @ib:         instantaneous bandwidth for each bus client
>>   * @active:	inidcates the state of dpu power handle
>>   */
>>  struct dpu_power_client {
>>  	char name[MAX_CLIENT_NAME_LEN];
>> -	short usecase_ndx;
>>  	short refcount;
>>  	u32 id;
>>  	struct list_head list;
>> -	u64 ab[DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX];
>> -	u64 ib[DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX];
>>  	bool active;
>>  };
>> 
>> @@ -112,14 +64,12 @@ struct dpu_power_event {
>>   * @client_clist: master list to store all clients
>>   * @phandle_lock: lock to synchronize the enable/disable
>>   * @dev: pointer to device structure
>> - * @usecase_ndx: current usecase index
>>   * @event_list: current power handle event list
>>   */
>>  struct dpu_power_handle {
>>  	struct list_head power_client_clist;
>>  	struct mutex phandle_lock;
>>  	struct device *dev;
>> -	u32 current_usecase_ndx;
>>  	struct list_head event_list;
>>  };
>> 
>> @@ -172,17 +122,6 @@ void dpu_power_client_destroy(struct 
>> dpu_power_handle *phandle,
>>  int dpu_power_resource_enable(struct dpu_power_handle *pdata,
>>  	struct dpu_power_client *pclient, bool enable);
>> 
>> -/**
>> - * dpu_power_data_bus_bandwidth_ctrl() - control data bus bandwidth 
>> enable
>> - * @phandle:  power handle containing the resources
>> - * @client: client information to bandwidth control
>> - * @enable: true to enable bandwidth for data base
>> - *
>> - * Return: none
>> - */
>> -void dpu_power_data_bus_bandwidth_ctrl(struct dpu_power_handle 
>> *phandle,
>> -		struct dpu_power_client *pclient, int enable);
>> -
>>  /**
>>   * dpu_power_handle_register_event - register a callback function for 
>> an event.
>>   *	Clients can register for multiple events with a single register.
>> @@ -207,11 +146,4 @@ struct dpu_power_event 
>> *dpu_power_handle_register_event(
>>  void dpu_power_handle_unregister_event(struct dpu_power_handle 
>> *phandle,
>>  		struct dpu_power_event *event);
>> 
>> -/**
>> - * dpu_power_handle_get_dbus_name - get name of given data bus 
>> identifier
>> - * @bus_id:	data bus identifier
>> - * Return:	Pointer to name string if success; NULL otherwise
>> - */
>> -const char *dpu_power_handle_get_dbus_name(u32 bus_id);
>> -
>>  #endif /* _DPU_POWER_HANDLE_H_ */
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h 
>> b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
>> index 0c122e173892..f5ed47a1556a 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
>> @@ -167,16 +167,13 @@ TRACE_EVENT(dpu_trace_counter,
>>  )
>> 
>>  TRACE_EVENT(dpu_perf_crtc_update,
>> -	TP_PROTO(u32 crtc, u64 bw_ctl_mnoc, u64 bw_ctl_llcc,
>> -			u64 bw_ctl_ebi, u32 core_clk_rate,
>> -			bool stop_req, u32 update_bus, u32 update_clk),
>> -	TP_ARGS(crtc, bw_ctl_mnoc, bw_ctl_llcc, bw_ctl_ebi, core_clk_rate,
>> +	TP_PROTO(u32 crtc, u64 bw_ctl, u32 core_clk_rate,
>> +			bool stop_req, bool update_bus, bool update_clk),
>> +	TP_ARGS(crtc, bw_ctl, core_clk_rate,
>>  		stop_req, update_bus, update_clk),
>>  	TP_STRUCT__entry(
>>  			__field(u32, crtc)
>> -			__field(u64, bw_ctl_mnoc)
>> -			__field(u64, bw_ctl_llcc)
>> -			__field(u64, bw_ctl_ebi)
>> +			__field(u64, bw_ctl)
>>  			__field(u32, core_clk_rate)
>>  			__field(bool, stop_req)
>>  			__field(u32, update_bus)
>> @@ -184,20 +181,16 @@ TRACE_EVENT(dpu_perf_crtc_update,
>>  	),
>>  	TP_fast_assign(
>>  			__entry->crtc = crtc;
>> -			__entry->bw_ctl_mnoc = bw_ctl_mnoc;
>> -			__entry->bw_ctl_llcc = bw_ctl_llcc;
>> -			__entry->bw_ctl_ebi = bw_ctl_ebi;
>> +			__entry->bw_ctl = bw_ctl;
>>  			__entry->core_clk_rate = core_clk_rate;
>>  			__entry->stop_req = stop_req;
>>  			__entry->update_bus = update_bus;
>>  			__entry->update_clk = update_clk;
>>  	),
>>  	 TP_printk(
>> -		"crtc=%d bw_mnoc=%llu bw_llcc=%llu bw_ebi=%llu clk_rate=%u 
>> stop_req=%d u_bus=%d u_clk=%d",
>> +		"crtc=%d bw_ctl=%llu clk_rate=%u stop_req=%d u_bus=%d u_clk=%d",
>>  			__entry->crtc,
>> -			__entry->bw_ctl_mnoc,
>> -			__entry->bw_ctl_llcc,
>> -			__entry->bw_ctl_ebi,
>> +			__entry->bw_ctl,
>>  			__entry->core_clk_rate,
>>  			__entry->stop_req,
>>  			__entry->update_bus,
>> --
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora 
>> Forum,
>> a Linux Foundation Collaborative Project
>>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
index 41c5191f9056..4ee6f0dd14f7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
@@ -90,7 +90,6 @@  static void _dpu_core_perf_calc_crtc(struct dpu_kms *kms,
 		struct dpu_core_perf_params *perf)
 {
 	struct dpu_crtc_state *dpu_cstate;
-	int i;
 
 	if (!kms || !kms->catalog || !crtc || !state || !perf) {
 		DPU_ERROR("invalid parameters\n");
@@ -101,35 +100,24 @@  static void _dpu_core_perf_calc_crtc(struct dpu_kms *kms,
 	memset(perf, 0, sizeof(struct dpu_core_perf_params));
 
 	if (!dpu_cstate->bw_control) {
-		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
-			perf->bw_ctl[i] = kms->catalog->perf.max_bw_high *
+		perf->bw_ctl = kms->catalog->perf.max_bw_high *
 					1000ULL;
-			perf->max_per_pipe_ib[i] = perf->bw_ctl[i];
-		}
+		perf->max_per_pipe_ib = perf->bw_ctl;
 		perf->core_clk_rate = kms->perf.max_core_clk_rate;
 	} else if (kms->perf.perf_tune.mode == DPU_PERF_MODE_MINIMUM) {
-		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
-			perf->bw_ctl[i] = 0;
-			perf->max_per_pipe_ib[i] = 0;
-		}
+		perf->bw_ctl = 0;
+		perf->max_per_pipe_ib = 0;
 		perf->core_clk_rate = 0;
 	} else if (kms->perf.perf_tune.mode == DPU_PERF_MODE_FIXED) {
-		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
-			perf->bw_ctl[i] = kms->perf.fix_core_ab_vote;
-			perf->max_per_pipe_ib[i] = kms->perf.fix_core_ib_vote;
-		}
+		perf->bw_ctl = kms->perf.fix_core_ab_vote;
+		perf->max_per_pipe_ib = kms->perf.fix_core_ib_vote;
 		perf->core_clk_rate = kms->perf.fix_core_clk_rate;
 	}
 
 	DPU_DEBUG(
-		"crtc=%d clk_rate=%llu core_ib=%llu core_ab=%llu llcc_ib=%llu llcc_ab=%llu mem_ib=%llu mem_ab=%llu\n",
+		"crtc=%d clk_rate=%llu core_ib=%llu core_ab=%llu\n",
 			crtc->base.id, perf->core_clk_rate,
-			perf->max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_MNOC],
-			perf->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_MNOC],
-			perf->max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_LLCC],
-			perf->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_LLCC],
-			perf->max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_EBI],
-			perf->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_EBI]);
+			perf->max_per_pipe_ib, perf->bw_ctl);
 }
 
 int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
@@ -142,7 +130,6 @@  int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
 	struct dpu_crtc_state *dpu_cstate;
 	struct drm_crtc *tmp_crtc;
 	struct dpu_kms *kms;
-	int i;
 
 	if (!crtc || !state) {
 		DPU_ERROR("invalid crtc\n");
@@ -164,31 +151,28 @@  int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
 	/* obtain new values */
 	_dpu_core_perf_calc_crtc(kms, crtc, state, &dpu_cstate->new_perf);
 
-	for (i = DPU_POWER_HANDLE_DBUS_ID_MNOC;
-			i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
-		bw_sum_of_intfs = dpu_cstate->new_perf.bw_ctl[i];
-		curr_client_type = dpu_crtc_get_client_type(crtc);
+	bw_sum_of_intfs = dpu_cstate->new_perf.bw_ctl;
+	curr_client_type = dpu_crtc_get_client_type(crtc);
 
-		drm_for_each_crtc(tmp_crtc, crtc->dev) {
-			if (_dpu_core_perf_crtc_is_power_on(tmp_crtc) &&
-			    (dpu_crtc_get_client_type(tmp_crtc) ==
-					    curr_client_type) &&
-			    (tmp_crtc != crtc)) {
-				struct dpu_crtc_state *tmp_cstate =
-					to_dpu_crtc_state(tmp_crtc->state);
-
-				DPU_DEBUG("crtc:%d bw:%llu ctrl:%d\n",
-					tmp_crtc->base.id,
-					tmp_cstate->new_perf.bw_ctl[i],
-					tmp_cstate->bw_control);
-				/*
-				 * For bw check only use the bw if the
-				 * atomic property has been already set
-				 */
-				if (tmp_cstate->bw_control)
-					bw_sum_of_intfs +=
-						tmp_cstate->new_perf.bw_ctl[i];
-			}
+	drm_for_each_crtc(tmp_crtc, crtc->dev) {
+		if (_dpu_core_perf_crtc_is_power_on(tmp_crtc) &&
+		    (dpu_crtc_get_client_type(tmp_crtc) ==
+				    curr_client_type) &&
+		    (tmp_crtc != crtc)) {
+			struct dpu_crtc_state *tmp_cstate =
+				to_dpu_crtc_state(tmp_crtc->state);
+
+			DPU_DEBUG("crtc:%d bw:%llu ctrl:%d\n",
+				tmp_crtc->base.id,
+				tmp_cstate->new_perf.bw_ctl,
+				tmp_cstate->bw_control);
+			/*
+			 * For bw check only use the bw if the
+			 * atomic property has been already set
+			 */
+			if (tmp_cstate->bw_control)
+				bw_sum_of_intfs +=
+					tmp_cstate->new_perf.bw_ctl;
 		}
 
 		/* convert bandwidth to kb */
@@ -219,9 +203,9 @@  int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
 }
 
 static int _dpu_core_perf_crtc_update_bus(struct dpu_kms *kms,
-		struct drm_crtc *crtc, u32 bus_id)
+		struct drm_crtc *crtc)
 {
-	struct dpu_core_perf_params perf = { { 0 } };
+	struct dpu_core_perf_params perf = { 0 };
 	enum dpu_crtc_client_type curr_client_type
 					= dpu_crtc_get_client_type(crtc);
 	struct drm_crtc *tmp_crtc;
@@ -234,13 +218,12 @@  static int _dpu_core_perf_crtc_update_bus(struct dpu_kms *kms,
 				dpu_crtc_get_client_type(tmp_crtc)) {
 			dpu_cstate = to_dpu_crtc_state(tmp_crtc->state);
 
-			perf.max_per_pipe_ib[bus_id] =
-				max(perf.max_per_pipe_ib[bus_id],
-				dpu_cstate->new_perf.max_per_pipe_ib[bus_id]);
+			perf.max_per_pipe_ib =
+				max(perf.max_per_pipe_ib,
+				dpu_cstate->new_perf.max_per_pipe_ib);
 
-			DPU_DEBUG("crtc=%d bus_id=%d bw=%llu\n",
-				tmp_crtc->base.id, bus_id,
-				dpu_cstate->new_perf.bw_ctl[bus_id]);
+			DPU_DEBUG("crtc=%d bw=%llu\n",
+				tmp_crtc->base.id, dpu_cstate->new_perf.bw_ctl);
 		}
 	}
 	return ret;
@@ -260,7 +243,6 @@  void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc)
 	struct dpu_crtc *dpu_crtc;
 	struct dpu_crtc_state *dpu_cstate;
 	struct dpu_kms *kms;
-	int i;
 
 	if (!crtc) {
 		DPU_ERROR("invalid crtc\n");
@@ -296,10 +278,8 @@  void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc)
 	if (kms->perf.enable_bw_release) {
 		trace_dpu_cmd_release_bw(crtc->base.id);
 		DPU_DEBUG("Release BW crtc=%d\n", crtc->base.id);
-		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
-			dpu_crtc->cur_perf.bw_ctl[i] = 0;
-			_dpu_core_perf_crtc_update_bus(kms, crtc, i);
-		}
+		dpu_crtc->cur_perf.bw_ctl = 0;
+		_dpu_core_perf_crtc_update_bus(kms, crtc);
 	}
 }
 
@@ -342,11 +322,10 @@  int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
 		int params_changed, bool stop_req)
 {
 	struct dpu_core_perf_params *new, *old;
-	int update_bus = 0, update_clk = 0;
+	bool update_bus = false, update_clk = false;
 	u64 clk_rate = 0;
 	struct dpu_crtc *dpu_crtc;
 	struct dpu_crtc_state *dpu_cstate;
-	int i;
 	struct msm_drm_private *priv;
 	struct dpu_kms *kms;
 	int ret;
@@ -373,7 +352,6 @@  int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
 	new = &dpu_cstate->new_perf;
 
 	if (_dpu_core_perf_crtc_is_power_on(crtc) && !stop_req) {
-		for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
 			/*
 			 * cases for bus bandwidth update.
 			 * 1. new bandwidth vote - "ab or ib vote" is higher
@@ -381,23 +359,22 @@  int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
 			 * 2. new bandwidth vote - "ab or ib vote" is lower
 			 *    than current vote at end of commit or stop.
 			 */
-			if ((params_changed && ((new->bw_ctl[i] >
-						old->bw_ctl[i]) ||
-				  (new->max_per_pipe_ib[i] >
-						old->max_per_pipe_ib[i]))) ||
-			    (!params_changed && ((new->bw_ctl[i] <
-						old->bw_ctl[i]) ||
-				  (new->max_per_pipe_ib[i] <
-						old->max_per_pipe_ib[i])))) {
+			if ((params_changed && ((new->bw_ctl >
+						old->bw_ctl) ||
+				  (new->max_per_pipe_ib >
+						old->max_per_pipe_ib))) ||
+			    (!params_changed && ((new->bw_ctl <
+						old->bw_ctl) ||
+				  (new->max_per_pipe_ib <
+						old->max_per_pipe_ib)))) {
 				DPU_DEBUG(
 					"crtc=%d p=%d new_bw=%llu,old_bw=%llu\n",
 					crtc->base.id, params_changed,
-					new->bw_ctl[i], old->bw_ctl[i]);
-				old->bw_ctl[i] = new->bw_ctl[i];
-				old->max_per_pipe_ib[i] =
-						new->max_per_pipe_ib[i];
-				update_bus |= BIT(i);
-			}
+					new->bw_ctl, old->bw_ctl);
+				old->bw_ctl = new->bw_ctl;
+				old->max_per_pipe_ib =
+						new->max_per_pipe_ib;
+				update_bus = true;
 		}
 
 		if ((params_changed &&
@@ -405,30 +382,26 @@  int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
 				(!params_changed &&
 				(new->core_clk_rate < old->core_clk_rate))) {
 			old->core_clk_rate = new->core_clk_rate;
-			update_clk = 1;
+			update_clk = true;
 		}
 	} else {
 		DPU_DEBUG("crtc=%d disable\n", crtc->base.id);
 		memset(old, 0, sizeof(*old));
 		memset(new, 0, sizeof(*new));
-		update_bus = ~0;
-		update_clk = 1;
+		update_bus = true;
+		update_clk = true;
 	}
+
 	trace_dpu_perf_crtc_update(crtc->base.id,
-				new->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_MNOC],
-				new->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_LLCC],
-				new->bw_ctl[DPU_POWER_HANDLE_DBUS_ID_EBI],
-				new->core_clk_rate, stop_req,
-				update_bus, update_clk);
-
-	for (i = 0; i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
-		if (update_bus & BIT(i)) {
-			ret = _dpu_core_perf_crtc_update_bus(kms, crtc, i);
-			if (ret) {
-				DPU_ERROR("crtc-%d: failed to update bw vote for bus-%d\n",
-					  crtc->base.id, i);
-				return ret;
-			}
+				new->bw_ctl, new->core_clk_rate,
+				stop_req, update_bus, update_clk);
+
+	if (update_bus) {
+		ret = _dpu_core_perf_crtc_update_bus(kms, crtc);
+		if (ret) {
+			DPU_ERROR("crtc-%d: failed to update bus bw vote\n",
+				  crtc->base.id);
+			return ret;
 		}
 	}
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
index fbcbe0c7527a..0fb276929dc5 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
@@ -30,8 +30,8 @@ 
  * @core_clk_rate: core clock rate request
  */
 struct dpu_core_perf_params {
-	u64 max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_MAX];
-	u64 bw_ctl[DPU_POWER_HANDLE_DBUS_ID_MAX];
+	u64 max_per_pipe_ib;
+	u64 bw_ctl;
 	u64 core_clk_rate;
 };
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index c5ba753d441c..841476d77f5c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -1373,21 +1373,14 @@  static int dpu_crtc_debugfs_state_show(struct seq_file *s, void *v)
 {
 	struct drm_crtc *crtc = (struct drm_crtc *) s->private;
 	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
-	int i;
 
 	seq_printf(s, "client type: %d\n", dpu_crtc_get_client_type(crtc));
 	seq_printf(s, "intf_mode: %d\n", dpu_crtc_get_intf_mode(crtc));
 	seq_printf(s, "core_clk_rate: %llu\n",
 			dpu_crtc->cur_perf.core_clk_rate);
-	for (i = DPU_POWER_HANDLE_DBUS_ID_MNOC;
-			i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
-		seq_printf(s, "bw_ctl[%s]: %llu\n",
-				dpu_power_handle_get_dbus_name(i),
-				dpu_crtc->cur_perf.bw_ctl[i]);
-		seq_printf(s, "max_per_pipe_ib[%s]: %llu\n",
-				dpu_power_handle_get_dbus_name(i),
-				dpu_crtc->cur_perf.max_per_pipe_ib[i]);
-	}
+	seq_printf(s, "bw_ctl: %llu\n", dpu_crtc->cur_perf.bw_ctl);
+	seq_printf(s, "max_per_pipe_ib: %llu\n",
+				dpu_crtc->cur_perf.max_per_pipe_ib);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c
index fc14116789f2..d58d01544731 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c
@@ -24,20 +24,6 @@ 
 #include "dpu_power_handle.h"
 #include "dpu_trace.h"
 
-static const char *data_bus_name[DPU_POWER_HANDLE_DBUS_ID_MAX] = {
-	[DPU_POWER_HANDLE_DBUS_ID_MNOC] = "qcom,dpu-data-bus",
-	[DPU_POWER_HANDLE_DBUS_ID_LLCC] = "qcom,dpu-llcc-bus",
-	[DPU_POWER_HANDLE_DBUS_ID_EBI] = "qcom,dpu-ebi-bus",
-};
-
-const char *dpu_power_handle_get_dbus_name(u32 bus_id)
-{
-	if (bus_id < DPU_POWER_HANDLE_DBUS_ID_MAX)
-		return data_bus_name[bus_id];
-
-	return NULL;
-}
-
 static void dpu_power_event_trigger_locked(struct dpu_power_handle *phandle,
 		u32 event_type)
 {
@@ -66,7 +52,6 @@  struct dpu_power_client *dpu_power_client_create(
 
 	mutex_lock(&phandle->phandle_lock);
 	strlcpy(client->name, client_name, MAX_CLIENT_NAME_LEN);
-	client->usecase_ndx = VOTE_INDEX_DISABLE;
 	client->id = id;
 	client->active = true;
 	pr_debug("client %s created:%pK id :%d\n", client_name,
@@ -143,8 +128,6 @@  int dpu_power_resource_enable(struct dpu_power_handle *phandle,
 	struct dpu_power_client *pclient, bool enable)
 {
 	bool changed = false;
-	u32 max_usecase_ndx = VOTE_INDEX_DISABLE, prev_usecase_ndx;
-	struct dpu_power_client *client;
 	u32 event_type;
 
 	if (!phandle || !pclient) {
@@ -153,31 +136,19 @@  int dpu_power_resource_enable(struct dpu_power_handle *phandle,
 	}
 
 	mutex_lock(&phandle->phandle_lock);
-	if (enable)
+	if (enable) {
 		pclient->refcount++;
-	else if (pclient->refcount)
+		if (pclient->refcount == 1)
+			changed = true;
+	} else if (pclient->refcount) {
 		pclient->refcount--;
-
-	if (pclient->refcount)
-		pclient->usecase_ndx = VOTE_INDEX_LOW;
-	else
-		pclient->usecase_ndx = VOTE_INDEX_DISABLE;
-
-	list_for_each_entry(client, &phandle->power_client_clist, list) {
-		if (client->usecase_ndx < VOTE_INDEX_MAX &&
-		    client->usecase_ndx > max_usecase_ndx)
-			max_usecase_ndx = client->usecase_ndx;
-	}
-
-	if (phandle->current_usecase_ndx != max_usecase_ndx) {
-		changed = true;
-		prev_usecase_ndx = phandle->current_usecase_ndx;
-		phandle->current_usecase_ndx = max_usecase_ndx;
+		if (!pclient->refcount)
+			changed = true;
 	}
 
-	pr_debug("%pS: changed=%d current idx=%d request client %s id:%u enable:%d refcount:%d\n",
-		__builtin_return_address(0), changed, max_usecase_ndx,
-		pclient->name, pclient->id, enable, pclient->refcount);
+	pr_debug("%pS:changed=%d client %s id:%u enable:%d refcount:%d\n",
+		__builtin_return_address(0), changed, pclient->name,
+		pclient->id, enable, pclient->refcount);
 
 	if (!changed)
 		goto end;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h
index a65b7a297f21..b1a5ae4d6f4e 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h
@@ -16,76 +16,28 @@ 
 
 #define MAX_CLIENT_NAME_LEN 128
 
-#define DPU_POWER_HANDLE_ENABLE_BUS_AB_QUOTA	0
-#define DPU_POWER_HANDLE_DISABLE_BUS_AB_QUOTA	0
-#define DPU_POWER_HANDLE_ENABLE_BUS_IB_QUOTA	1600000000
-#define DPU_POWER_HANDLE_DISABLE_BUS_IB_QUOTA	0
-
 #include "dpu_io_util.h"
 
 /* events will be triggered on power handler enable/disable */
 #define DPU_POWER_EVENT_DISABLE	BIT(0)
 #define DPU_POWER_EVENT_ENABLE	BIT(1)
 
-/**
- * mdss_bus_vote_type: register bus vote type
- * VOTE_INDEX_DISABLE: removes the client vote
- * VOTE_INDEX_LOW: keeps the lowest vote for register bus
- * VOTE_INDEX_MAX: invalid
- */
-enum mdss_bus_vote_type {
-	VOTE_INDEX_DISABLE,
-	VOTE_INDEX_LOW,
-	VOTE_INDEX_MAX,
-};
-
-/**
- * enum dpu_power_handle_data_bus_client - type of axi bus clients
- * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_RT: core real-time bus client
- * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_NRT: core non-real-time bus client
- * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX: maximum number of bus client type
- */
-enum dpu_power_handle_data_bus_client {
-	DPU_POWER_HANDLE_DATA_BUS_CLIENT_RT,
-	DPU_POWER_HANDLE_DATA_BUS_CLIENT_NRT,
-	DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX
-};
-
-/**
- * enum DPU_POWER_HANDLE_DBUS_ID - data bus identifier
- * @DPU_POWER_HANDLE_DBUS_ID_MNOC: DPU/MNOC data bus
- * @DPU_POWER_HANDLE_DBUS_ID_LLCC: MNOC/LLCC data bus
- * @DPU_POWER_HANDLE_DBUS_ID_EBI: LLCC/EBI data bus
- */
-enum DPU_POWER_HANDLE_DBUS_ID {
-	DPU_POWER_HANDLE_DBUS_ID_MNOC,
-	DPU_POWER_HANDLE_DBUS_ID_LLCC,
-	DPU_POWER_HANDLE_DBUS_ID_EBI,
-	DPU_POWER_HANDLE_DBUS_ID_MAX,
-};
-
 /**
  * struct dpu_power_client: stores the power client for dpu driver
  * @name:	name of the client
- * @usecase_ndx: current regs bus vote type
  * @refcount:	current refcount if multiple modules are using same
  *              same client for enable/disable. Power module will
  *              aggregate the refcount and vote accordingly for this
  *              client.
  * @id:		assigned during create. helps for debugging.
  * @list:	list to attach power handle master list
- * @ab:         arbitrated bandwidth for each bus client
- * @ib:         instantaneous bandwidth for each bus client
  * @active:	inidcates the state of dpu power handle
  */
 struct dpu_power_client {
 	char name[MAX_CLIENT_NAME_LEN];
-	short usecase_ndx;
 	short refcount;
 	u32 id;
 	struct list_head list;
-	u64 ab[DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX];
-	u64 ib[DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX];
 	bool active;
 };
 
@@ -112,14 +64,12 @@  struct dpu_power_event {
  * @client_clist: master list to store all clients
  * @phandle_lock: lock to synchronize the enable/disable
  * @dev: pointer to device structure
- * @usecase_ndx: current usecase index
  * @event_list: current power handle event list
  */
 struct dpu_power_handle {
 	struct list_head power_client_clist;
 	struct mutex phandle_lock;
 	struct device *dev;
-	u32 current_usecase_ndx;
 	struct list_head event_list;
 };
 
@@ -172,17 +122,6 @@  void dpu_power_client_destroy(struct dpu_power_handle *phandle,
 int dpu_power_resource_enable(struct dpu_power_handle *pdata,
 	struct dpu_power_client *pclient, bool enable);
 
-/**
- * dpu_power_data_bus_bandwidth_ctrl() - control data bus bandwidth enable
- * @phandle:  power handle containing the resources
- * @client: client information to bandwidth control
- * @enable: true to enable bandwidth for data base
- *
- * Return: none
- */
-void dpu_power_data_bus_bandwidth_ctrl(struct dpu_power_handle *phandle,
-		struct dpu_power_client *pclient, int enable);
-
 /**
  * dpu_power_handle_register_event - register a callback function for an event.
  *	Clients can register for multiple events with a single register.
@@ -207,11 +146,4 @@  struct dpu_power_event *dpu_power_handle_register_event(
 void dpu_power_handle_unregister_event(struct dpu_power_handle *phandle,
 		struct dpu_power_event *event);
 
-/**
- * dpu_power_handle_get_dbus_name - get name of given data bus identifier
- * @bus_id:	data bus identifier
- * Return:	Pointer to name string if success; NULL otherwise
- */
-const char *dpu_power_handle_get_dbus_name(u32 bus_id);
-
 #endif /* _DPU_POWER_HANDLE_H_ */
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
index 0c122e173892..f5ed47a1556a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
@@ -167,16 +167,13 @@  TRACE_EVENT(dpu_trace_counter,
 )
 
 TRACE_EVENT(dpu_perf_crtc_update,
-	TP_PROTO(u32 crtc, u64 bw_ctl_mnoc, u64 bw_ctl_llcc,
-			u64 bw_ctl_ebi, u32 core_clk_rate,
-			bool stop_req, u32 update_bus, u32 update_clk),
-	TP_ARGS(crtc, bw_ctl_mnoc, bw_ctl_llcc, bw_ctl_ebi, core_clk_rate,
+	TP_PROTO(u32 crtc, u64 bw_ctl, u32 core_clk_rate,
+			bool stop_req, bool update_bus, bool update_clk),
+	TP_ARGS(crtc, bw_ctl, core_clk_rate,
 		stop_req, update_bus, update_clk),
 	TP_STRUCT__entry(
 			__field(u32, crtc)
-			__field(u64, bw_ctl_mnoc)
-			__field(u64, bw_ctl_llcc)
-			__field(u64, bw_ctl_ebi)
+			__field(u64, bw_ctl)
 			__field(u32, core_clk_rate)
 			__field(bool, stop_req)
 			__field(u32, update_bus)
@@ -184,20 +181,16 @@  TRACE_EVENT(dpu_perf_crtc_update,
 	),
 	TP_fast_assign(
 			__entry->crtc = crtc;
-			__entry->bw_ctl_mnoc = bw_ctl_mnoc;
-			__entry->bw_ctl_llcc = bw_ctl_llcc;
-			__entry->bw_ctl_ebi = bw_ctl_ebi;
+			__entry->bw_ctl = bw_ctl;
 			__entry->core_clk_rate = core_clk_rate;
 			__entry->stop_req = stop_req;
 			__entry->update_bus = update_bus;
 			__entry->update_clk = update_clk;
 	),
 	 TP_printk(
-		"crtc=%d bw_mnoc=%llu bw_llcc=%llu bw_ebi=%llu clk_rate=%u stop_req=%d u_bus=%d u_clk=%d",
+		"crtc=%d bw_ctl=%llu clk_rate=%u stop_req=%d u_bus=%d u_clk=%d",
 			__entry->crtc,
-			__entry->bw_ctl_mnoc,
-			__entry->bw_ctl_llcc,
-			__entry->bw_ctl_ebi,
+			__entry->bw_ctl,
 			__entry->core_clk_rate,
 			__entry->stop_req,
 			__entry->update_bus,