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Subject[PATCH 1/5] drm/msm/dpu: clean up references of DPU custom bus scaling
Date
From: Jayant Shekhar <jshekhar@codeaurora.org>

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

Changes in v3:
- Condense multiple lines into a single line (Sean Paul)

Changes in v4-v7:
- None

Signed-off-by: Sravanthi Kollukuduru <skolluku@codeaurora.org>
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c | 174 +++++++-----------
drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h | 4 +-
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 11 +-
drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h | 22 +--
4 files changed, 80 insertions(+), 131 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 9f20f397f77d..e231c37a9dbb 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
@@ -77,7 +77,6 @@ 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");
@@ -88,35 +87,24 @@ 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_CORE_PERF_DATA_BUS_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_CORE_PERF_DATA_BUS_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_CORE_PERF_DATA_BUS_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_CORE_PERF_DATA_BUS_ID_MNOC],
- perf->bw_ctl[DPU_CORE_PERF_DATA_BUS_ID_MNOC],
- perf->max_per_pipe_ib[DPU_CORE_PERF_DATA_BUS_ID_LLCC],
- perf->bw_ctl[DPU_CORE_PERF_DATA_BUS_ID_LLCC],
- perf->max_per_pipe_ib[DPU_CORE_PERF_DATA_BUS_ID_EBI],
- perf->bw_ctl[DPU_CORE_PERF_DATA_BUS_ID_EBI]);
+ perf->max_per_pipe_ib, perf->bw_ctl);
}

int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
@@ -129,7 +117,6 @@ 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");
@@ -151,31 +138,25 @@ 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_CORE_PERF_DATA_BUS_ID_MNOC;
- i < DPU_CORE_PERF_DATA_BUS_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 (tmp_crtc->enabled &&
- (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 (tmp_crtc->enabled &&
+ (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 */
@@ -206,9 +187,9 @@ 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;
@@ -221,13 +202,11 @@ 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;
@@ -247,7 +226,6 @@ 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");
@@ -283,10 +261,8 @@ 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_CORE_PERF_DATA_BUS_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);
}
}

@@ -329,11 +305,10 @@ 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;
@@ -360,62 +335,49 @@ int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
new = &dpu_cstate->new_perf;

if (crtc->enabled && !stop_req) {
- for (i = 0; i < DPU_CORE_PERF_DATA_BUS_ID_MAX; i++) {
- /*
- * cases for bus bandwidth update.
- * 1. new bandwidth vote - "ab or ib vote" is higher
- * than current vote for update request.
- * 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])))) {
- 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);
- }
+ /*
+ * cases for bus bandwidth update.
+ * 1. new bandwidth vote - "ab or ib vote" is higher
+ * than current vote for update request.
+ * 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)))) {
+ DPU_DEBUG("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;
}

if ((params_changed &&
- (new->core_clk_rate > old->core_clk_rate)) ||
- (!params_changed &&
- (new->core_clk_rate < old->core_clk_rate))) {
+ (new->core_clk_rate > old->core_clk_rate)) ||
+ (!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_CORE_PERF_DATA_BUS_ID_MNOC],
- new->bw_ctl[DPU_CORE_PERF_DATA_BUS_ID_LLCC],
- new->bw_ctl[DPU_CORE_PERF_DATA_BUS_ID_EBI],
- new->core_clk_rate, stop_req,
- update_bus, update_clk);
-
- for (i = 0; i < DPU_CORE_PERF_DATA_BUS_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;
- }
+
+ trace_dpu_perf_crtc_update(crtc->base.id, 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 37f518815eb7..d2097ef3d716 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
@@ -42,8 +42,8 @@ enum dpu_core_perf_data_bus_id {
* @core_clk_rate: core clock rate request
*/
struct dpu_core_perf_params {
- u64 max_per_pipe_ib[DPU_CORE_PERF_DATA_BUS_ID_MAX];
- u64 bw_ctl[DPU_CORE_PERF_DATA_BUS_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 dfdfa766da8f..c4db60a8672d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -1235,19 +1235,14 @@ 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_CORE_PERF_DATA_BUS_ID_MNOC;
- i < DPU_CORE_PERF_DATA_BUS_ID_MAX; i++) {
- seq_printf(s, "bw_ctl[%d]: %llu\n", i,
- dpu_crtc->cur_perf.bw_ctl[i]);
- seq_printf(s, "max_per_pipe_ib[%d]: %llu\n", 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_trace.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
index 8bb46090bd16..1d68e214795e 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
@@ -146,16 +146,12 @@ 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,
- stop_req, update_bus, update_clk),
+ 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)
@@ -163,20 +159,16 @@ 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,
--
2.20.1
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