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-rw-r--r--drivers/soc/qcom/qcom_stats.c187
1 files changed, 1 insertions, 186 deletions
diff --git a/drivers/soc/qcom/qcom_stats.c b/drivers/soc/qcom/qcom_stats.c
index 5ec8a754b22b..0216fc24f2ca 100644
--- a/drivers/soc/qcom/qcom_stats.c
+++ b/drivers/soc/qcom/qcom_stats.c
@@ -3,7 +3,6 @@
* Copyright (c) 2011-2021, The Linux Foundation. All rights reserved.
*/
-#include <linux/bitfield.h>
#include <linux/debugfs.h>
#include <linux/device.h>
#include <linux/io.h>
@@ -12,7 +11,6 @@
#include <linux/platform_device.h>
#include <linux/seq_file.h>
-#include <linux/soc/qcom/qcom_aoss.h>
#include <linux/soc/qcom/smem.h>
#include <clocksource/arm_arch_timer.h>
@@ -24,20 +22,8 @@
#define LAST_ENTERED_AT_OFFSET 0x8
#define LAST_EXITED_AT_OFFSET 0x10
#define ACCUMULATED_OFFSET 0x18
-#define DDR_DYNAMIC_OFFSET 0x1c
- #define DDR_OFFSET_MASK GENMASK(9, 0)
#define CLIENT_VOTES_OFFSET 0x20
-#define ARCH_TIMER_FREQ 19200000
-#define DDR_MAGIC_KEY1 0xA1157A75 /* leetspeak "ALLSTATS" */
-#define DDR_MAX_NUM_ENTRIES 20
-
-#define DDR_VOTE_DRV_MAX 18
-#define DDR_VOTE_DRV_ABSENT 0xdeaddead
-#define DDR_VOTE_DRV_INVALID 0xffffdead
-#define DDR_VOTE_X GENMASK(27, 14)
-#define DDR_VOTE_Y GENMASK(13, 0)
-
struct subsystem_data {
const char *name;
u32 smem_item;
@@ -62,7 +48,6 @@ struct stats_config {
bool appended_stats_avail;
bool dynamic_offset;
bool subsystem_stats_in_smem;
- bool ddr_stats;
};
struct stats_data {
@@ -83,25 +68,6 @@ struct appended_stats {
u32 reserved[3];
};
-struct ddr_stats_entry {
- u32 name;
- u32 count;
- u64 dur;
-} __packed;
-
-struct ddr_stats {
- u32 key;
- u32 entry_count;
-#define MAX_DDR_STAT_ENTRIES 20
- struct ddr_stats_entry entry[MAX_DDR_STAT_ENTRIES];
-} __packed;
-
-struct ddr_stats_data {
- struct device *dev;
- void __iomem *base;
- struct qmp *qmp;
-};
-
static void qcom_print_stats(struct seq_file *s, const struct sleep_stats *stat)
{
u64 accumulated = stat->accumulated;
@@ -152,108 +118,6 @@ static int qcom_soc_sleep_stats_show(struct seq_file *s, void *unused)
return 0;
}
-#define DDR_NAME_TYPE GENMASK(15, 8)
- #define DDR_NAME_TYPE_LPM 0
- #define DDR_NAME_TYPE_FREQ 1
-
-#define DDR_NAME_LPM_NAME GENMASK(7, 0)
-
-#define DDR_NAME_FREQ_MHZ GENMASK(31, 16)
-#define DDR_NAME_FREQ_CP_IDX GENMASK(4, 0)
-static void qcom_ddr_stats_print(struct seq_file *s, struct ddr_stats_entry *entry)
-{
- u32 cp_idx, name;
- u8 type;
-
- type = FIELD_GET(DDR_NAME_TYPE, entry->name);
-
- switch (type) {
- case DDR_NAME_TYPE_LPM:
- name = FIELD_GET(DDR_NAME_LPM_NAME, entry->name);
-
- seq_printf(s, "LPM | Type 0x%2x\tcount: %u\ttime: %llums\n",
- name, entry->count, entry->dur);
- break;
- case DDR_NAME_TYPE_FREQ:
- cp_idx = FIELD_GET(DDR_NAME_FREQ_CP_IDX, entry->name);
- name = FIELD_GET(DDR_NAME_FREQ_MHZ, entry->name);
-
- /* Neither 0Mhz nor 0 votes is very interesting */
- if (!name || !entry->count)
- return;
-
- seq_printf(s, "Freq | %dMHz (idx %u)\tcount: %u\ttime: %llums\n",
- name, cp_idx, entry->count, entry->dur);
- break;
- default:
- seq_printf(s, "Unknown data chunk (type = 0x%x count = 0x%x dur = 0x%llx)\n",
- type, entry->count, entry->dur);
- }
-}
-
-static int qcom_ddr_stats_show(struct seq_file *s, void *unused)
-{
- struct ddr_stats_data *ddrd = s->private;
- struct ddr_stats ddr;
- struct ddr_stats_entry *entry = ddr.entry;
- u32 entry_count, stats_size;
- u32 votes[DDR_VOTE_DRV_MAX];
- int i, ret;
-
- /* Request a stats sync, it may take some time to update though.. */
- ret = qmp_send(ddrd->qmp, "{class: ddr, action: freqsync}");
- if (ret) {
- dev_err(ddrd->dev, "failed to send QMP message\n");
- return ret;
- }
-
- entry_count = readl(ddrd->base + offsetof(struct ddr_stats, entry_count));
- if (entry_count > DDR_MAX_NUM_ENTRIES)
- return -EINVAL;
-
- /* We're not guaranteed to have DDR_MAX_NUM_ENTRIES */
- stats_size = sizeof(ddr);
- stats_size -= DDR_MAX_NUM_ENTRIES * sizeof(*entry);
- stats_size += entry_count * sizeof(*entry);
-
- /* Copy and process the stats */
- memcpy_fromio(&ddr, ddrd->base, stats_size);
-
- for (i = 0; i < ddr.entry_count; i++) {
- /* Convert the period to ms */
- entry[i].dur = div_u64(entry[i].dur, ARCH_TIMER_FREQ / MSEC_PER_SEC);
- }
-
- for (i = 0; i < ddr.entry_count; i++)
- qcom_ddr_stats_print(s, &entry[i]);
-
- /* Ask AOSS to dump DDR votes */
- ret = qmp_send(ddrd->qmp, "{class: ddr, res: drvs_ddr_votes}");
- if (ret) {
- dev_err(ddrd->dev, "failed to send QMP message\n");
- return ret;
- }
-
- /* Subsystem votes */
- memcpy_fromio(votes, ddrd->base + stats_size, sizeof(u32) * DDR_VOTE_DRV_MAX);
-
- for (i = 0; i < DDR_VOTE_DRV_MAX; i++) {
- u32 ab, ib;
-
- if (votes[i] == DDR_VOTE_DRV_ABSENT || votes[i] == DDR_VOTE_DRV_INVALID)
- ab = ib = votes[i];
- else {
- ab = FIELD_GET(DDR_VOTE_X, votes[i]);
- ib = FIELD_GET(DDR_VOTE_Y, votes[i]);
- }
-
- seq_printf(s, "Vote | AB = %5u\tIB = %5u\n", ab, ib);
- }
-
- return 0;
-}
-
-DEFINE_SHOW_ATTRIBUTE(qcom_ddr_stats);
DEFINE_SHOW_ATTRIBUTE(qcom_soc_sleep_stats);
DEFINE_SHOW_ATTRIBUTE(qcom_subsystem_sleep_stats);
@@ -316,56 +180,13 @@ static void qcom_create_subsystem_stat_files(struct dentry *root,
&qcom_subsystem_sleep_stats_fops);
}
-static int qcom_create_ddr_stats_files(struct device *dev,
- struct dentry *root,
- void __iomem *reg,
- const struct stats_config *config)
-{
- struct ddr_stats_data *ddrd;
- u32 key, stats_offset;
- struct dentry *dent;
-
- /* Nothing to do */
- if (!config->ddr_stats)
- return 0;
-
- ddrd = devm_kzalloc(dev, sizeof(*ddrd), GFP_KERNEL);
- if (!ddrd)
- return dev_err_probe(dev, -ENOMEM, "Couldn't allocate DDR stats data\n");
-
- ddrd->dev = dev;
-
- /* Get the offset of DDR stats */
- stats_offset = readl(reg + DDR_DYNAMIC_OFFSET) & DDR_OFFSET_MASK;
- ddrd->base = reg + stats_offset;
-
- /* Check if DDR stats are present */
- key = readl(ddrd->base);
- if (key != DDR_MAGIC_KEY1)
- return 0;
-
- dent = debugfs_create_file("ddr_sleep_stats", 0400, root, ddrd, &qcom_ddr_stats_fops);
- if (IS_ERR(dent))
- return PTR_ERR(dent);
-
- /* QMP is only necessary for DDR votes */
- ddrd->qmp = qmp_get(dev);
- if (IS_ERR(ddrd->qmp)) {
- dev_err(dev, "Couldn't get QMP mailbox: %ld. DDR votes won't be available.\n",
- PTR_ERR(ddrd->qmp));
- debugfs_remove(dent);
- }
-
- return 0;
-}
-
static int qcom_stats_probe(struct platform_device *pdev)
{
void __iomem *reg;
struct dentry *root;
const struct stats_config *config;
struct stats_data *d;
- int i, ret;
+ int i;
config = device_get_match_data(&pdev->dev);
if (!config)
@@ -387,11 +208,6 @@ static int qcom_stats_probe(struct platform_device *pdev)
qcom_create_subsystem_stat_files(root, config);
qcom_create_soc_sleep_stat_files(root, reg, d, config);
- ret = qcom_create_ddr_stats_files(&pdev->dev, root, reg, config);
- if (ret) {
- debugfs_remove_recursive(root);
- return ret;
- };
platform_set_drvdata(pdev, root);
@@ -438,7 +254,6 @@ static const struct stats_config rpmh_data = {
.appended_stats_avail = false,
.dynamic_offset = false,
.subsystem_stats_in_smem = true,
- .ddr_stats = true,
};
static const struct of_device_id qcom_stats_table[] = {
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2025-01-13 05:51:57 +0000