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Message-ID: <366b8fc6f5d77c01f9e0e2ad25627df583729017.1707466888.git.shravankr@nvidia.com>
Date: Fri, 9 Feb 2024 03:39:55 -0500
From: Shravan Kumar Ramani <shravankr@...dia.com>
To: Hans de Goede <hdegoede@...hat.com>, Ilpo Jarvinen
<ilpo.jarvinen@...ux.intel.com>, Vadim Pasternak <vadimp@...dia.com>, "David
Thompson" <davthompson@...dia.com>
CC: Shravan Kumar Ramani <shravankr@...dia.com>,
<platform-driver-x86@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 2/4] platform/mellanox: mlxbf-pmc: Fix signed/unsigned mix-up
Signed-off-by: Shravan Kumar Ramani <shravankr@...dia.com>
---
drivers/platform/mellanox/mlxbf-pmc.c | 110 ++++++++++++++------------
1 file changed, 58 insertions(+), 52 deletions(-)
diff --git a/drivers/platform/mellanox/mlxbf-pmc.c b/drivers/platform/mellanox/mlxbf-pmc.c
index 71d919832e2a..e3f1ae772e43 100644
--- a/drivers/platform/mellanox/mlxbf-pmc.c
+++ b/drivers/platform/mellanox/mlxbf-pmc.c
@@ -99,8 +99,8 @@
*/
struct mlxbf_pmc_attribute {
struct device_attribute dev_attr;
- int index;
- int nr;
+ unsigned int index;
+ unsigned int nr;
};
/**
@@ -121,7 +121,7 @@ struct mlxbf_pmc_block_info {
void __iomem *mmio_base;
size_t blk_size;
size_t counters;
- int type;
+ unsigned int type;
struct mlxbf_pmc_attribute *attr_counter;
struct mlxbf_pmc_attribute *attr_event;
struct mlxbf_pmc_attribute attr_event_list;
@@ -169,7 +169,7 @@ struct mlxbf_pmc_context {
* @evt_name: Name of the event
*/
struct mlxbf_pmc_events {
- int evt_num;
+ u32 evt_num;
char *evt_name;
};
@@ -959,7 +959,7 @@ static int mlxbf_pmc_write(void __iomem *addr, int command, u64 value)
}
/* Check if the register offset is within the mapped region for the block */
-static bool mlxbf_pmc_valid_range(int blk_num, u32 offset)
+static bool mlxbf_pmc_valid_range(unsigned int blk_num, u32 offset)
{
if ((offset >= 0) && !(offset % MLXBF_PMC_REG_SIZE) &&
(offset + MLXBF_PMC_REG_SIZE <= pmc->block[blk_num].blk_size))
@@ -970,7 +970,7 @@ static bool mlxbf_pmc_valid_range(int blk_num, u32 offset)
/* Get the event list corresponding to a certain block */
static const struct mlxbf_pmc_events *mlxbf_pmc_event_list(const char *blk,
- int *size)
+ unsigned int *size)
{
const struct mlxbf_pmc_events *events;
@@ -1047,7 +1047,7 @@ static const struct mlxbf_pmc_events *mlxbf_pmc_event_list(const char *blk,
static int mlxbf_pmc_get_event_num(const char *blk, const char *evt)
{
const struct mlxbf_pmc_events *events;
- int i, size;
+ unsigned int size, i;
events = mlxbf_pmc_event_list(blk, &size);
if (!events)
@@ -1062,10 +1062,10 @@ static int mlxbf_pmc_get_event_num(const char *blk, const char *evt)
}
/* Get the event number given the name */
-static char *mlxbf_pmc_get_event_name(const char *blk, int evt)
+static char *mlxbf_pmc_get_event_name(const char *blk, u32 evt)
{
const struct mlxbf_pmc_events *events;
- int i, size;
+ unsigned int size, i;
events = mlxbf_pmc_event_list(blk, &size);
if (!events)
@@ -1080,7 +1080,7 @@ static char *mlxbf_pmc_get_event_name(const char *blk, int evt)
}
/* Method to enable/disable/reset l3cache counters */
-static int mlxbf_pmc_config_l3_counters(int blk_num, bool enable, bool reset)
+static int mlxbf_pmc_config_l3_counters(unsigned int blk_num, bool enable, bool reset)
{
u32 perfcnt_cfg = 0;
@@ -1095,7 +1095,7 @@ static int mlxbf_pmc_config_l3_counters(int blk_num, bool enable, bool reset)
}
/* Method to handle l3cache counter programming */
-static int mlxbf_pmc_program_l3_counter(int blk_num, u32 cnt_num,
+static int mlxbf_pmc_program_l3_counter(unsigned int blk_num, u32 cnt_num,
u32 evt)
{
u32 perfcnt_sel_1 = 0, perfcnt_sel = 0, *wordaddr;
@@ -1160,7 +1160,7 @@ static int mlxbf_pmc_program_l3_counter(int blk_num, u32 cnt_num,
}
/* Method to handle crspace counter programming */
-static int mlxbf_pmc_program_crspace_counter(int blk_num, u32 cnt_num,
+static int mlxbf_pmc_program_crspace_counter(unsigned int blk_num, u32 cnt_num,
u32 evt)
{
void *addr;
@@ -1185,7 +1185,7 @@ static int mlxbf_pmc_program_crspace_counter(int blk_num, u32 cnt_num,
}
/* Method to clear crspace counter value */
-static int mlxbf_pmc_clear_crspace_counter(int blk_num, u32 cnt_num)
+static int mlxbf_pmc_clear_crspace_counter(unsigned int blk_num, u32 cnt_num)
{
void *addr;
@@ -1197,7 +1197,7 @@ static int mlxbf_pmc_clear_crspace_counter(int blk_num, u32 cnt_num)
}
/* Method to program a counter to monitor an event */
-static int mlxbf_pmc_program_counter(int blk_num, u32 cnt_num,
+static int mlxbf_pmc_program_counter(unsigned int blk_num, u32 cnt_num,
u32 evt, bool is_l3)
{
u64 perfctl, perfevt, perfmon_cfg;
@@ -1261,7 +1261,7 @@ static int mlxbf_pmc_program_counter(int blk_num, u32 cnt_num,
}
/* Method to handle l3 counter reads */
-static int mlxbf_pmc_read_l3_counter(int blk_num, u32 cnt_num,
+static int mlxbf_pmc_read_l3_counter(unsigned int blk_num, u32 cnt_num,
u64 *result)
{
u32 perfcnt_low = 0, perfcnt_high = 0;
@@ -1293,7 +1293,7 @@ static int mlxbf_pmc_read_l3_counter(int blk_num, u32 cnt_num,
}
/* Method to handle crspace counter reads */
-static int mlxbf_pmc_read_crspace_counter(int blk_num, u32 cnt_num,
+static int mlxbf_pmc_read_crspace_counter(unsigned int blk_num, u32 cnt_num,
u64 *result)
{
int status = 0;
@@ -1311,7 +1311,7 @@ static int mlxbf_pmc_read_crspace_counter(int blk_num, u32 cnt_num,
}
/* Method to read the counter value */
-static int mlxbf_pmc_read_counter(int blk_num, u32 cnt_num, bool is_l3,
+static int mlxbf_pmc_read_counter(unsigned int blk_num, u32 cnt_num, bool is_l3,
u64 *result)
{
u32 perfcfg_offset, perfval_offset;
@@ -1349,7 +1349,7 @@ static int mlxbf_pmc_read_counter(int blk_num, u32 cnt_num, bool is_l3,
}
/* Method to read L3 block event */
-static int mlxbf_pmc_read_l3_event(int blk_num, u32 cnt_num,
+static int mlxbf_pmc_read_l3_event(unsigned int blk_num, u32 cnt_num,
u64 *result)
{
u32 perfcnt_sel = 0, perfcnt_sel_1 = 0, *wordaddr;
@@ -1402,7 +1402,7 @@ static int mlxbf_pmc_read_l3_event(int blk_num, u32 cnt_num,
}
/* Method to read crspace block event */
-static int mlxbf_pmc_read_crspace_event(int blk_num, u32 cnt_num,
+static int mlxbf_pmc_read_crspace_event(unsigned int blk_num, u32 cnt_num,
u64 *result)
{
u32 word, evt;
@@ -1426,7 +1426,7 @@ static int mlxbf_pmc_read_crspace_event(int blk_num, u32 cnt_num,
}
/* Method to find the event currently being monitored by a counter */
-static int mlxbf_pmc_read_event(int blk_num, u32 cnt_num, bool is_l3,
+static int mlxbf_pmc_read_event(unsigned int blk_num, u32 cnt_num, bool is_l3,
u64 *result)
{
u32 perfcfg_offset, perfval_offset;
@@ -1466,7 +1466,7 @@ static int mlxbf_pmc_read_event(int blk_num, u32 cnt_num, bool is_l3,
}
/* Method to read a register */
-static int mlxbf_pmc_read_reg(int blk_num, u32 offset, u64 *result)
+static int mlxbf_pmc_read_reg(unsigned int blk_num, u32 offset, u64 *result)
{
u32 ecc_out;
@@ -1487,7 +1487,7 @@ static int mlxbf_pmc_read_reg(int blk_num, u32 offset, u64 *result)
}
/* Method to write to a register */
-static int mlxbf_pmc_write_reg(int blk_num, u32 offset, u64 data)
+static int mlxbf_pmc_write_reg(unsigned int blk_num, u32 offset, u64 data)
{
if (strstr(pmc->block_name[blk_num], "ecc")) {
return mlxbf_pmc_write(pmc->block[blk_num].mmio_base + offset,
@@ -1507,7 +1507,7 @@ static ssize_t mlxbf_pmc_counter_show(struct device *dev,
{
struct mlxbf_pmc_attribute *attr_counter = container_of(
attr, struct mlxbf_pmc_attribute, dev_attr);
- int blk_num, cnt_num, offset;
+ unsigned int blk_num, cnt_num, offset;
bool is_l3 = false;
u64 value;
@@ -1541,14 +1541,15 @@ static ssize_t mlxbf_pmc_counter_store(struct device *dev,
{
struct mlxbf_pmc_attribute *attr_counter = container_of(
attr, struct mlxbf_pmc_attribute, dev_attr);
- int blk_num, cnt_num, offset, err, data;
+ unsigned int blk_num, cnt_num, offset, data;
bool is_l3 = false;
u64 evt_num;
+ int err;
blk_num = attr_counter->nr;
cnt_num = attr_counter->index;
- err = kstrtoint(buf, 0, &data);
+ err = kstrtouint(buf, 0, &data);
if (err < 0)
return err;
@@ -1577,7 +1578,7 @@ static ssize_t mlxbf_pmc_counter_store(struct device *dev,
if (err)
return err;
} else if (pmc->block[blk_num].type == MLXBF_PMC_TYPE_CRSPACE) {
- if (sscanf(attr->attr.name, "counter%d", &cnt_num) != 1)
+ if (sscanf(attr->attr.name, "counter%u", &cnt_num) != 1)
return -EINVAL;
err = mlxbf_pmc_clear_crspace_counter(blk_num, cnt_num);
} else
@@ -1592,10 +1593,11 @@ static ssize_t mlxbf_pmc_event_show(struct device *dev,
{
struct mlxbf_pmc_attribute *attr_event = container_of(
attr, struct mlxbf_pmc_attribute, dev_attr);
- int blk_num, cnt_num, err;
+ unsigned int blk_num, cnt_num;
bool is_l3 = false;
- u64 evt_num;
char *evt_name;
+ u64 evt_num;
+ int err;
blk_num = attr_event->nr;
cnt_num = attr_event->index;
@@ -1621,8 +1623,9 @@ static ssize_t mlxbf_pmc_event_store(struct device *dev,
{
struct mlxbf_pmc_attribute *attr_event = container_of(
attr, struct mlxbf_pmc_attribute, dev_attr);
- int blk_num, cnt_num, evt_num, err;
+ unsigned int blk_num, cnt_num, evt_num;
bool is_l3 = false;
+ int err;
blk_num = attr_event->nr;
cnt_num = attr_event->index;
@@ -1633,7 +1636,7 @@ static ssize_t mlxbf_pmc_event_store(struct device *dev,
if (evt_num < 0)
return -EINVAL;
} else {
- err = kstrtoint(buf, 0, &evt_num);
+ err = kstrtouint(buf, 0, &evt_num);
if (err < 0)
return err;
}
@@ -1655,9 +1658,10 @@ static ssize_t mlxbf_pmc_event_list_show(struct device *dev,
{
struct mlxbf_pmc_attribute *attr_event_list = container_of(
attr, struct mlxbf_pmc_attribute, dev_attr);
- int blk_num, i, size, len = 0, ret = 0;
+ unsigned int blk_num, i, size, len = 0;
const struct mlxbf_pmc_events *events;
char e_info[MLXBF_PMC_EVENT_INFO_LEN];
+ int ret = 0;
blk_num = attr_event_list->nr;
@@ -1683,8 +1687,8 @@ static ssize_t mlxbf_pmc_enable_show(struct device *dev,
{
struct mlxbf_pmc_attribute *attr_enable = container_of(
attr, struct mlxbf_pmc_attribute, dev_attr);
+ unsigned int blk_num, value;
u32 perfcnt_cfg, word;
- int blk_num, value;
blk_num = attr_enable->nr;
@@ -1704,7 +1708,7 @@ static ssize_t mlxbf_pmc_enable_show(struct device *dev,
value = FIELD_GET(MLXBF_PMC_L3C_PERF_CNT_CFG_EN, perfcnt_cfg);
}
- return sysfs_emit(buf, "%d\n", value);
+ return sysfs_emit(buf, "%u\n", value);
}
/* Store function for "enable" sysfs files - only for l3cache & crspace */
@@ -1714,12 +1718,13 @@ static ssize_t mlxbf_pmc_enable_store(struct device *dev,
{
struct mlxbf_pmc_attribute *attr_enable = container_of(
attr, struct mlxbf_pmc_attribute, dev_attr);
- int err, en, blk_num;
+ unsigned int en, blk_num;
u32 word;
+ int err;
blk_num = attr_enable->nr;
- err = kstrtoint(buf, 0, &en);
+ err = kstrtouint(buf, 0, &en);
if (err < 0)
return err;
@@ -1757,10 +1762,10 @@ static ssize_t mlxbf_pmc_enable_store(struct device *dev,
}
/* Populate attributes for blocks with counters to monitor performance */
-static int mlxbf_pmc_init_perftype_counter(struct device *dev, int blk_num)
+static int mlxbf_pmc_init_perftype_counter(struct device *dev, unsigned int blk_num)
{
struct mlxbf_pmc_attribute *attr;
- int i = 0, j = 0;
+ unsigned int i = 0, j = 0;
/* "event_list" sysfs to list events supported by the block */
attr = &pmc->block[blk_num].attr_event_list;
@@ -1810,7 +1815,7 @@ static int mlxbf_pmc_init_perftype_counter(struct device *dev, int blk_num)
attr->index = j;
attr->nr = blk_num;
attr->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
- "counter%d", j);
+ "counter%u", j);
if (!attr->dev_attr.attr.name)
return -ENOMEM;
pmc->block[blk_num].block_attr[++i] = &attr->dev_attr.attr;
@@ -1823,7 +1828,7 @@ static int mlxbf_pmc_init_perftype_counter(struct device *dev, int blk_num)
attr->index = j;
attr->nr = blk_num;
attr->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
- "event%d", j);
+ "event%u", j);
if (!attr->dev_attr.attr.name)
return -ENOMEM;
pmc->block[blk_num].block_attr[++i] = &attr->dev_attr.attr;
@@ -1834,11 +1839,11 @@ static int mlxbf_pmc_init_perftype_counter(struct device *dev, int blk_num)
}
/* Populate attributes for blocks with registers to monitor performance */
-static int mlxbf_pmc_init_perftype_reg(struct device *dev, int blk_num)
+static int mlxbf_pmc_init_perftype_reg(struct device *dev, unsigned int blk_num)
{
- struct mlxbf_pmc_attribute *attr;
const struct mlxbf_pmc_events *events;
- int i = 0, j = 0;
+ struct mlxbf_pmc_attribute *attr;
+ unsigned int i = 0, j = 0;
events = mlxbf_pmc_event_list(pmc->block_name[blk_num], &j);
if (!events)
@@ -1869,7 +1874,7 @@ static int mlxbf_pmc_init_perftype_reg(struct device *dev, int blk_num)
}
/* Helper to create the bfperf sysfs sub-directories and files */
-static int mlxbf_pmc_create_groups(struct device *dev, int blk_num)
+static int mlxbf_pmc_create_groups(struct device *dev, unsigned int blk_num)
{
int err;
@@ -1912,18 +1917,19 @@ static bool mlxbf_pmc_guid_match(const guid_t *guid,
static int mlxbf_pmc_map_counters(struct device *dev)
{
u64 info[MLXBF_PMC_INFO_SZ];
- int i, tile_num, ret;
+ unsigned int tile_num, i;
+ int ret;
for (i = 0; i < pmc->total_blocks; ++i) {
/* Create sysfs for tiles only if block number < tile_count */
if (strstr(pmc->block_name[i], "tilenet")) {
- if (sscanf(pmc->block_name[i], "tilenet%d", &tile_num) != 1)
+ if (sscanf(pmc->block_name[i], "tilenet%u", &tile_num) != 1)
continue;
if (tile_num >= pmc->tile_count)
continue;
} else if (strstr(pmc->block_name[i], "tile")) {
- if (sscanf(pmc->block_name[i], "tile%d", &tile_num) != 1)
+ if (sscanf(pmc->block_name[i], "tile%u", &tile_num) != 1)
continue;
if (tile_num >= pmc->tile_count)
@@ -1933,9 +1939,9 @@ static int mlxbf_pmc_map_counters(struct device *dev)
/* Create sysfs only for enabled MSS blocks */
if (strstr(pmc->block_name[i], "mss") &&
pmc->event_set == MLXBF_PMC_EVENT_SET_BF3) {
- int mss_num;
+ unsigned int mss_num;
- if (sscanf(pmc->block_name[i], "mss%d", &mss_num) != 1)
+ if (sscanf(pmc->block_name[i], "mss%u", &mss_num) != 1)
continue;
if (!((pmc->mss_enable >> mss_num) & 0x1))
@@ -1944,17 +1950,17 @@ static int mlxbf_pmc_map_counters(struct device *dev)
/* Create sysfs only for enabled LLT blocks */
if (strstr(pmc->block_name[i], "llt_miss")) {
- int llt_num;
+ unsigned int llt_num;
- if (sscanf(pmc->block_name[i], "llt_miss%d", &llt_num) != 1)
+ if (sscanf(pmc->block_name[i], "llt_miss%u", &llt_num) != 1)
continue;
if (!((pmc->llt_enable >> llt_num) & 0x1))
continue;
} else if (strstr(pmc->block_name[i], "llt")) {
- int llt_num;
+ unsigned int llt_num;
- if (sscanf(pmc->block_name[i], "llt%d", &llt_num) != 1)
+ if (sscanf(pmc->block_name[i], "llt%u", &llt_num) != 1)
continue;
if (!((pmc->llt_enable >> llt_num) & 0x1))
--
2.30.1
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