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msm: gsi: add gsi profiling stats and fw version to debugfs

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Add GSI profiling stats data and the GSI FW version to debug fs.

Change-Id: I5749339f5ec9656e636a512668025bb09a97a3ec
Acked-by: Nadav Levintov <nadavl@qti.qualcomm.com>
Signed-off-by: Sivan Reinstein <sivanr@codeaurora.org>
This commit is contained in:
Sivan Reinstein
2021-04-29 09:39:20 +03:00
parent e0364fbb38
commit d1dfec34da
5 changed files with 284 additions and 2 deletions
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103
drivers/platform/msm/gsi/gsi_dbg.c
View File

@@ -12,6 +12,8 @@
#include "gsi.h"
#include "gsihal.h"
#define GSI_MAX_MSG_LEN 4096
#define TERR(fmt, args...) \
pr_err("%s:%d " fmt, __func__, __LINE__, ## args)
#define TDBG(fmt, args...) \
@@ -20,7 +22,7 @@
pr_err(fmt, ## args)
static struct dentry *dent;
static char dbg_buff[4096];
static char dbg_buff[GSI_MAX_MSG_LEN];
static void *gsi_ipc_logbuf_low;
static void gsi_wq_print_dp_stats(struct work_struct *work);
@@ -584,6 +586,80 @@ static ssize_t gsi_enable_ipc_low(struct file *file,
return count;
}
static ssize_t gsi_read_gsi_hw_profiling_stats(struct file *file,
char __user *buf, size_t count, loff_t *ppos)
{
struct gsi_hw_profiling_data stats;
int nbytes, cnt = 0;
u64 totalCycles = 0, util = 0;
if (gsi_ctx->per.ver < GSI_VER_2_9) {
nbytes = scnprintf(dbg_buff, GSI_MAX_MSG_LEN,
"This feature only support on GSI2.9+\n");
cnt += nbytes;
goto done;
}
if (!gsi_get_hw_profiling_stats(&stats)) {
totalCycles = stats.mcs_busy_cnt + stats.mcs_idle_cnt +
stats.bp_and_pending_cnt;
if (totalCycles != 0)
util = div_u64(
100 * (stats.mcs_busy_cnt + stats.bp_and_pending_cnt),
totalCycles);
else
util = 0;
nbytes = scnprintf(dbg_buff, GSI_MAX_MSG_LEN,
"bp_count=0x%llx\n"
"bp_and_pending_count=0x%llx\n"
"mcs_busy=0x%llx\n"
"mcs_idle=0x%llx\n"
"total_cycle_count=0x%llx\n"
"utilization_percentage=%llu%%\n",
stats.bp_cnt,
stats.bp_and_pending_cnt,
stats.mcs_busy_cnt,
stats.mcs_idle_cnt,
totalCycles,
util);
cnt += nbytes;
} else {
nbytes = scnprintf(dbg_buff, GSI_MAX_MSG_LEN,
"Fail to read GSI HW Profiling stats\n");
cnt += nbytes;
}
done:
return simple_read_from_buffer(buf, count, ppos, dbg_buff, cnt);
}
static ssize_t gsi_read_gsi_fw_version(struct file *file,
char __user *buf, size_t count, loff_t *ppos)
{
struct gsi_fw_version ver;
int nbytes, cnt = 0;
if (gsi_ctx->per.ver < GSI_VER_2_9) {
nbytes = scnprintf(dbg_buff, GSI_MAX_MSG_LEN,
"This feature only support on GSI2.9+\n");
cnt += nbytes;
goto done;
}
if (!gsi_get_fw_version(&ver)) {
nbytes = scnprintf(dbg_buff, GSI_MAX_MSG_LEN,
"hw=%d\nflavor=%d\nfw=%d\n",
ver.hw,
ver.flavor,
ver.fw);
cnt += nbytes;
} else {
nbytes = scnprintf(dbg_buff, GSI_MAX_MSG_LEN,
"Fail to read GSI FW version\n");
cnt += nbytes;
}
done:
return simple_read_from_buffer(buf, count, ppos, dbg_buff, cnt);
}
static const struct file_operations gsi_ev_dump_ops = {
.write = gsi_dump_evt,
};
@@ -616,10 +692,19 @@ static const struct file_operations gsi_ipc_low_ops = {
.write = gsi_enable_ipc_low,
};
static const struct file_operations gsi_hw_profiling_ops = {
.read = gsi_read_gsi_hw_profiling_stats,
};
static const struct file_operations gsi_ver_ops = {
.read = gsi_read_gsi_fw_version,
};
void gsi_debugfs_init(void)
{
static struct dentry *dfile;
const mode_t write_only_mode = 0220;
const mode_t read_only_mode = 0440;
dent = debugfs_create_dir("gsi", 0);
if (IS_ERR(dent)) {
@@ -683,8 +768,22 @@ void gsi_debugfs_init(void)
goto fail;
}
dfile = debugfs_create_file("gsi_hw_profiling_stats", read_only_mode,
dent, 0, &gsi_hw_profiling_ops);
if (!dfile || IS_ERR(dfile)) {
TERR("could not create gsi_hw_profiling_stats\n");
goto fail;
}
dfile = debugfs_create_file("gsi_fw_version", read_only_mode, dent, 0,
&gsi_ver_ops);
if (!dfile || IS_ERR(dfile)) {
TERR("could not create gsi_fw_version\n");
goto fail;
}
return;
fail:
debugfs_remove_recursive(dent);
}