On 3/13/2024 6:10 PM, Dmitry Baryshkov wrote:
The max_per_pipe_ib is a constant across all CRTCs and is read from the
catalog. Drop corresponding calculations and read the value directly at
icc_set_bw() time.
Suggested-by: Konrad Dybcio <konrad.dyb...@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c | 17 +++++------------
drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h | 2 --
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 --
3 files changed, 5 insertions(+), 16 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 2e78e57665fc..2fc05665dc7a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
@@ -105,13 +105,12 @@ static void _dpu_core_perf_calc_crtc(const struct
dpu_core_perf *core_perf,
}
perf->bw_ctl = _dpu_core_perf_calc_bw(perf_cfg, crtc);
- perf->max_per_pipe_ib = perf_cfg->min_dram_ib;
perf->core_clk_rate = _dpu_core_perf_calc_clk(perf_cfg, crtc, state);
DRM_DEBUG_ATOMIC(
- "crtc=%d clk_rate=%llu core_ib=%llu core_ab=%llu\n",
+ "crtc=%d clk_rate=%llu core_ab=%llu\n",
crtc->base.id, perf->core_clk_rate,
- perf->max_per_pipe_ib, perf->bw_ctl);
+ perf->bw_ctl);
}
int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
@@ -190,9 +189,6 @@ static void dpu_core_perf_aggregate(struct drm_device *ddev,
curr_client_type == dpu_crtc_get_client_type(tmp_crtc)) {
dpu_cstate = to_dpu_crtc_state(tmp_crtc->state);
- perf->max_per_pipe_ib = max(perf->max_per_pipe_ib,
-
dpu_cstate->new_perf.max_per_pipe_ib);
during the override case
perf->max_per_pipe_ib = core_perf->fix_core_ib_vote
So this is one case where max_per_pipe_ib can actually be changed right?
Now, fix_core_ib_vote will not be used then?
-
perf->bw_ctl += dpu_cstate->new_perf.bw_ctl;
DRM_DEBUG_ATOMIC("crtc=%d bw=%llu\n",
@@ -216,7 +212,7 @@ static int _dpu_core_perf_crtc_update_bus(struct dpu_kms
*kms,
dpu_core_perf_aggregate(crtc->dev, dpu_crtc_get_client_type(crtc),
&perf);
avg_bw = div_u64(perf.bw_ctl, 1000); /*Bps_to_icc*/
- peak_bw = perf.max_per_pipe_ib;
+ peak_bw = kms->catalog->perf->min_dram_ib;
if (kms->perf.fix_core_ab_vote)
avg_bw = kms->perf.fix_core_ab_vote;
@@ -321,15 +317,12 @@ 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 > 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)))) {
+ if ((params_changed && new->bw_ctl > old->bw_ctl) ||
+ (!params_changed && new->bw_ctl < old->bw_ctl)) {
DRM_DEBUG_ATOMIC("crtc=%d p=%d
new_bw=%llu,old_bw=%llu\n",
crtc->base.id, params_changed,
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;
}
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 5a3d18ca9555..a5a9c3389718 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
@@ -14,12 +14,10 @@
/**
* struct dpu_core_perf_params - definition of performance parameters
- * @max_per_pipe_ib: maximum instantaneous bandwidth request
* @bw_ctl: arbitrated bandwidth request
* @core_clk_rate: core clock rate request
*/
struct dpu_core_perf_params {
- 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 88c2e51ab166..771c04c1a5ea 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -1389,8 +1389,6 @@ static int dpu_crtc_debugfs_state_show(struct seq_file
*s, void *v)
seq_printf(s, "core_clk_rate: %llu\n",
dpu_crtc->cur_perf.core_clk_rate);
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;
}
