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Merge "usb: dwc3: msm: add debug entries to check interrupt count for perf mode"

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qctecmdr 2023-06-14 21:36:31 -07:00 committed by Gerrit - the friendly Code Review server
commit 7371cc0cd7
1 changed files with 60 additions and 8 deletions
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68
drivers/usb/dwc3/dwc3-msm-core.c
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@ -625,6 +625,16 @@ struct dwc3_msm {
bool wcd_usbss;
bool dynamic_disable;
struct dentry *dbg_dir;
#define PM_QOS_REQ_DYNAMIC 0
#define PM_QOS_REQ_PERF 1
#define PM_QOS_REQ_DEFAULT 2
u8 qos_req_state;
#define PM_QOS_REC_MAX_RECORD 50
bool qos_rec_start;
u8 qos_rec_index;
u32 qos_rec_irq[PM_QOS_REC_MAX_RECORD];
};
#define USB_HSPHY_3P3_VOL_MIN 3050000 /* uV */
@ -5551,7 +5561,31 @@ int dwc3_msm_release_ss_lane(struct device *dev)
}
EXPORT_SYMBOL(dwc3_msm_release_ss_lane);
static int dwc3_msm_debug_init(struct dwc3_msm *mdwc)
static int qos_rec_irq_read(struct seq_file *s, void *p)
{
struct dwc3_msm *mdwc = s->private;
int i;
for (i = 0; i < PM_QOS_REC_MAX_RECORD; i++)
seq_printf(s, "%d ", mdwc->qos_rec_irq[i]);
seq_puts(s, "\n");
return 0;
}
static int qos_rec_irq_open(struct inode *inode,
struct file *file)
{
return single_open(file, qos_rec_irq_read, inode->i_private);
}
static const struct file_operations qos_rec_irq_ops = {
.open = qos_rec_irq_open,
.read = seq_read,
};
static void dwc3_msm_debug_init(struct dwc3_msm *mdwc)
{
char ipc_log_ctx_name[40];
@ -5574,7 +5608,20 @@ static int dwc3_msm_debug_init(struct dwc3_msm *mdwc)
if (!dwc_trace_ipc_log_ctxt)
dev_err(mdwc->dev, "Error getting trace_ipc_log_ctxt for ep_events\n");
return 0;
mdwc->dbg_dir = debugfs_create_dir(dev_name(mdwc->dev), NULL);
if (!mdwc->dbg_dir)
return;
debugfs_create_u8("qos_req_state", 0644, mdwc->dbg_dir, &mdwc->qos_req_state);
debugfs_create_bool("qos_rec_start", 0644, mdwc->dbg_dir, &mdwc->qos_rec_start);
debugfs_create_u8("qos_rec_index", 0644, mdwc->dbg_dir, &mdwc->qos_rec_index);
debugfs_create_file("qos_rec_irq", 0444, mdwc->dbg_dir, mdwc, &qos_rec_irq_ops);
}
static void dwc3_msm_debug_exit(struct dwc3_msm *mdwc)
{
ipc_log_context_destroy(mdwc->dwc_ipc_log_ctxt);
ipc_log_context_destroy(mdwc->dwc_dma_ipc_log_ctxt);
debugfs_remove_recursive(mdwc->dbg_dir);
}
static void dwc3_host_complete(struct device *dev);
@ -6280,10 +6327,7 @@ static int dwc3_msm_remove(struct platform_device *pdev)
destroy_workqueue(mdwc->sm_usb_wq);
destroy_workqueue(mdwc->dwc3_wq);
ipc_log_context_destroy(mdwc->dwc_ipc_log_ctxt);
mdwc->dwc_ipc_log_ctxt = NULL;
ipc_log_context_destroy(mdwc->dwc_dma_ipc_log_ctxt);
mdwc->dwc_dma_ipc_log_ctxt = NULL;
dwc3_msm_debug_exit(mdwc);
kfree(mdwc->xhci_pm_ops);
kfree(mdwc->dwc3_pm_ops);
@ -6437,10 +6481,14 @@ static void msm_dwc3_perf_vote_work(struct work_struct *w)
unsigned long delay = PM_QOS_DEFAULT_SAMPLE_MS;
bool in_perf_mode = false;
if (mdwc->qos_rec_start && mdwc->qos_rec_index < PM_QOS_REC_MAX_RECORD)
mdwc->qos_rec_irq[mdwc->qos_rec_index++] = count;
if (mdwc->perf_mode)
threshold = PM_QOS_PERF_SAMPLE_THRESHOLD;
if (count >= threshold)
if (mdwc->qos_req_state == PM_QOS_REQ_PERF ||
(mdwc->qos_req_state == PM_QOS_REQ_DYNAMIC && count >= threshold))
in_perf_mode = true;
pr_debug("%s: in_perf_mode:%u, interrupts in last sample:%u\n",
@ -6449,7 +6497,11 @@ static void msm_dwc3_perf_vote_work(struct work_struct *w)
mdwc->irq_cnt = new;
msm_dwc3_perf_vote_update(mdwc, in_perf_mode);
if (in_perf_mode)
/*
* in PM_QOS_REQ_DEFAULT and PM_QOS_REQ_PERF, both delay is 100ms,
* it will compare irq differences.
*/
if (mdwc->qos_req_state == PM_QOS_REQ_DYNAMIC && in_perf_mode)
delay = PM_QOS_PERF_SAMPLE_MS;
schedule_delayed_work(&mdwc->perf_vote_work, msecs_to_jiffies(delay));