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msm: vidc: add active session check for clk and bus vote calculation

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After couple of buffer transaction, sometimes session will be idle,
So do not consider inactive sessions for clk scaling and bus vote
calculation.

Change-Id: Ib4cc7606da6c828ce1d9108528a2cbbad4e5f6e4
Signed-off-by: Govindaraj Rajagopal <grajagop@codeaurora.org>
This commit is contained in:
Govindaraj Rajagopal 2020-04-05 16:33:43 +05:30
commit 8eaf9d9bc8
3 changed files with 43 additions and 0 deletions
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3
msm/vidc/msm_vidc.c
View file

@ -387,6 +387,8 @@ int msm_vidc_qbuf(void *instance, struct media_device *mdev,
return -EINVAL;
}
inst->last_qbuf_time_ns = ktime_get_ns();
for (i = 0; i < b->length; i++) {
b->m.planes[i].m.fd =
b->m.planes[i].reserved[MSM_VIDC_BUFFER_FD];
@ -1510,6 +1512,7 @@ void *msm_vidc_open(int core_id, int session_type)
inst->full_range = COLOR_RANGE_UNSPECIFIED;
inst->bse_vpp_delay = DEFAULT_BSE_VPP_DELAY;
inst->first_reconfig = 0;
inst->active = true;
for (i = SESSION_MSG_INDEX(SESSION_MSG_START);
i <= SESSION_MSG_INDEX(SESSION_MSG_END); i++) {

38
msm/vidc/msm_vidc_clocks.c
View file

@ -17,6 +17,8 @@
#define MSM_VIDC_MIN_UBWC_COMPRESSION_RATIO (1 << 16)
#define MSM_VIDC_MAX_UBWC_COMPRESSION_RATIO (5 << 16)
#define MSM_VIDC_SESSION_INACTIVE_THRESHOLD_MS 1000
static int msm_vidc_decide_work_mode_ar50_lt(struct msm_vidc_inst *inst);
static unsigned long msm_vidc_calc_freq_ar50_lt(struct msm_vidc_inst *inst,
u32 filled_len);
@ -155,6 +157,19 @@ int msm_vidc_get_fps(struct msm_vidc_inst *inst)
return fps;
}
static inline bool is_active_session(u64 prev, u64 curr)
{
u64 ts_delta;
if (!prev || !curr)
return true;
ts_delta = (prev < curr) ? curr - prev : prev - curr;
return ((ts_delta / NSEC_PER_MSEC) <=
MSM_VIDC_SESSION_INACTIVE_THRESHOLD_MS);
}
void update_recon_stats(struct msm_vidc_inst *inst,
struct recon_stats_type *recon_stats)
{
@ -263,12 +278,14 @@ int msm_comm_set_buses(struct msm_vidc_core *core, u32 sid)
struct msm_vidc_inst *inst = NULL;
struct hfi_device *hdev;
unsigned long total_bw_ddr = 0, total_bw_llcc = 0;
u64 curr_time_ns;
if (!core || !core->device) {
s_vpr_e(sid, "%s: Invalid args: %pK\n", __func__, core);
return -EINVAL;
}
hdev = core->device;
curr_time_ns = ktime_get_ns();
mutex_lock(&core->lock);
list_for_each_entry(inst, &core->instances, list) {
@ -292,6 +309,12 @@ int msm_comm_set_buses(struct msm_vidc_core *core, u32 sid)
continue;
}
/* skip inactive session bus bandwidth */
if (!is_active_session(inst->last_qbuf_time_ns, curr_time_ns)) {
inst->active = false;
continue;
}
if (inst->bus_data.power_mode == VIDC_POWER_TURBO) {
total_bw_ddr = total_bw_llcc = INT_MAX;
break;
@ -766,8 +789,10 @@ int msm_vidc_set_clocks(struct msm_vidc_core *core, u32 sid)
int rc = 0, i = 0;
struct allowed_clock_rates_table *allowed_clks_tbl = NULL;
bool increment, decrement;
u64 curr_time_ns;
hdev = core->device;
curr_time_ns = ktime_get_ns();
allowed_clks_tbl = core->resources.allowed_clks_tbl;
if (!allowed_clks_tbl) {
s_vpr_e(sid, "%s: Invalid parameters\n", __func__);
@ -796,6 +821,12 @@ int msm_vidc_set_clocks(struct msm_vidc_core *core, u32 sid)
continue;
}
/* skip inactive session clock rate */
if (!is_active_session(inst->last_qbuf_time_ns, curr_time_ns)) {
inst->active = false;
continue;
}
if (inst->clk_data.core_id == VIDC_CORE_ID_1)
freq_core_1 += inst->clk_data.min_freq;
else if (inst->clk_data.core_id == VIDC_CORE_ID_2)
@ -919,6 +950,12 @@ int msm_comm_scale_clocks_and_bus(struct msm_vidc_inst *inst, bool do_bw_calc)
core = inst->core;
hdev = core->device;
if (!inst->active) {
/* do not skip bw voting for inactive -> active session */
do_bw_calc = true;
inst->active = true;
}
if (msm_comm_scale_clocks(inst)) {
s_vpr_e(inst->sid,
"Failed to scale clocks. May impact performance\n");
@ -930,6 +967,7 @@ int msm_comm_scale_clocks_and_bus(struct msm_vidc_inst *inst, bool do_bw_calc)
"Failed to scale DDR bus. May impact perf\n");
}
}
return 0;
}

2
msm/vidc/msm_vidc_internal.h
View file

@ -569,6 +569,8 @@ struct msm_vidc_inst {
struct msm_vidc_ubwc_stats ubwc_stats;
u32 bse_vpp_delay;
u32 first_reconfig;
u64 last_qbuf_time_ns;
bool active;
};
extern struct msm_vidc_drv *vidc_driver;