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path: root/drivers/platform/mellanox/mlxbf-pmc.c
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Diffstat (limited to 'drivers/platform/mellanox/mlxbf-pmc.c')
-rw-r--r--drivers/platform/mellanox/mlxbf-pmc.c383
1 files changed, 249 insertions, 134 deletions
diff --git a/drivers/platform/mellanox/mlxbf-pmc.c b/drivers/platform/mellanox/mlxbf-pmc.c
index b1995ac268d7..36a00692347d 100644
--- a/drivers/platform/mellanox/mlxbf-pmc.c
+++ b/drivers/platform/mellanox/mlxbf-pmc.c
@@ -88,6 +88,7 @@
#define MLXBF_PMC_CRSPACE_PERFMON_CTL(n) (n * MLXBF_PMC_CRSPACE_PERFMON_REG0_SZ)
#define MLXBF_PMC_CRSPACE_PERFMON_EN BIT(30)
#define MLXBF_PMC_CRSPACE_PERFMON_CLR BIT(28)
+#define MLXBF_PMC_CRSPACE_PERFMON_COUNT_CLOCK(n) (MLXBF_PMC_CRSPACE_PERFMON_CTL(n) + 0x4)
#define MLXBF_PMC_CRSPACE_PERFMON_VAL0(n) (MLXBF_PMC_CRSPACE_PERFMON_CTL(n) + 0xc)
/**
@@ -99,8 +100,8 @@
*/
struct mlxbf_pmc_attribute {
struct device_attribute dev_attr;
- int index;
- int nr;
+ unsigned int index;
+ unsigned int nr;
};
/**
@@ -114,6 +115,7 @@ struct mlxbf_pmc_attribute {
* @attr_event: Attributes for "event" sysfs files
* @attr_event_list: Attributes for "event_list" sysfs files
* @attr_enable: Attributes for "enable" sysfs files
+ * @attr_count_clock: Attributes for "count_clock" sysfs files
* @block_attr: All attributes needed for the block
* @block_attr_grp: Attribute group for the block
*/
@@ -121,11 +123,12 @@ 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;
struct mlxbf_pmc_attribute attr_enable;
+ struct mlxbf_pmc_attribute attr_count_clock;
struct attribute *block_attr[MLXBF_PMC_MAX_ATTRS];
struct attribute_group block_attr_grp;
};
@@ -149,17 +152,17 @@ struct mlxbf_pmc_block_info {
*/
struct mlxbf_pmc_context {
struct platform_device *pdev;
- uint32_t total_blocks;
- uint32_t tile_count;
- uint8_t llt_enable;
- uint8_t mss_enable;
- uint32_t group_num;
+ u32 total_blocks;
+ u32 tile_count;
+ u8 llt_enable;
+ u8 mss_enable;
+ u32 group_num;
struct device *hwmon_dev;
const char *block_name[MLXBF_PMC_MAX_BLOCKS];
struct mlxbf_pmc_block_info block[MLXBF_PMC_MAX_BLOCKS];
const struct attribute_group *groups[MLXBF_PMC_MAX_BLOCKS];
bool svc_sreg_support;
- uint32_t sreg_tbl_perf;
+ u32 sreg_tbl_perf;
unsigned int event_set;
};
@@ -169,7 +172,7 @@ struct mlxbf_pmc_context {
* @evt_name: Name of the event
*/
struct mlxbf_pmc_events {
- int evt_num;
+ u32 evt_num;
char *evt_name;
};
@@ -859,14 +862,44 @@ static const struct mlxbf_pmc_events mlxbf_pmc_llt_miss_events[] = {
{75, "HISTOGRAM_HISTOGRAM_BIN9"},
};
+static const struct mlxbf_pmc_events mlxbf_pmc_clock_events[] = {
+ { 0x0, "FMON_CLK_LAST_COUNT_PLL_D1_INST0" },
+ { 0x4, "REFERENCE_WINDOW_WIDTH_PLL_D1_INST0" },
+ { 0x8, "FMON_CLK_LAST_COUNT_PLL_D1_INST1" },
+ { 0xc, "REFERENCE_WINDOW_WIDTH_PLL_D1_INST1" },
+ { 0x10, "FMON_CLK_LAST_COUNT_PLL_G1" },
+ { 0x14, "REFERENCE_WINDOW_WIDTH_PLL_G1" },
+ { 0x18, "FMON_CLK_LAST_COUNT_PLL_W1" },
+ { 0x1c, "REFERENCE_WINDOW_WIDTH_PLL_W1" },
+ { 0x20, "FMON_CLK_LAST_COUNT_PLL_T1" },
+ { 0x24, "REFERENCE_WINDOW_WIDTH_PLL_T1" },
+ { 0x28, "FMON_CLK_LAST_COUNT_PLL_A0" },
+ { 0x2c, "REFERENCE_WINDOW_WIDTH_PLL_A0" },
+ { 0x30, "FMON_CLK_LAST_COUNT_PLL_C0" },
+ { 0x34, "REFERENCE_WINDOW_WIDTH_PLL_C0" },
+ { 0x38, "FMON_CLK_LAST_COUNT_PLL_N1" },
+ { 0x3c, "REFERENCE_WINDOW_WIDTH_PLL_N1" },
+ { 0x40, "FMON_CLK_LAST_COUNT_PLL_I1" },
+ { 0x44, "REFERENCE_WINDOW_WIDTH_PLL_I1" },
+ { 0x48, "FMON_CLK_LAST_COUNT_PLL_R1" },
+ { 0x4c, "REFERENCE_WINDOW_WIDTH_PLL_R1" },
+ { 0x50, "FMON_CLK_LAST_COUNT_PLL_P1" },
+ { 0x54, "REFERENCE_WINDOW_WIDTH_PLL_P1" },
+ { 0x58, "FMON_CLK_LAST_COUNT_REF_100_INST0" },
+ { 0x5c, "REFERENCE_WINDOW_WIDTH_REF_100_INST0" },
+ { 0x60, "FMON_CLK_LAST_COUNT_REF_100_INST1" },
+ { 0x64, "REFERENCE_WINDOW_WIDTH_REF_100_INST1" },
+ { 0x68, "FMON_CLK_LAST_COUNT_REF_156" },
+ { 0x6c, "REFERENCE_WINDOW_WIDTH_REF_156" },
+};
+
static struct mlxbf_pmc_context *pmc;
/* UUID used to probe ATF service. */
static const char *mlxbf_pmc_svc_uuid_str = "89c036b4-e7d7-11e6-8797-001aca00bfc4";
/* Calls an SMC to access a performance register */
-static int mlxbf_pmc_secure_read(void __iomem *addr, uint32_t command,
- uint64_t *result)
+static int mlxbf_pmc_secure_read(void __iomem *addr, u32 command, u64 *result)
{
struct arm_smccc_res res;
int status, err = 0;
@@ -892,8 +925,7 @@ static int mlxbf_pmc_secure_read(void __iomem *addr, uint32_t command,
}
/* Read from a performance counter */
-static int mlxbf_pmc_read(void __iomem *addr, uint32_t command,
- uint64_t *result)
+static int mlxbf_pmc_read(void __iomem *addr, u32 command, u64 *result)
{
if (pmc->svc_sreg_support)
return mlxbf_pmc_secure_read(addr, command, result);
@@ -907,22 +939,21 @@ static int mlxbf_pmc_read(void __iomem *addr, uint32_t command,
}
/* Convenience function for 32-bit reads */
-static int mlxbf_pmc_readl(void __iomem *addr, uint32_t *result)
+static int mlxbf_pmc_readl(void __iomem *addr, u32 *result)
{
- uint64_t read_out;
+ u64 read_out;
int status;
status = mlxbf_pmc_read(addr, MLXBF_PMC_READ_REG_32, &read_out);
if (status)
return status;
- *result = (uint32_t)read_out;
+ *result = (u32)read_out;
return 0;
}
/* Calls an SMC to access a performance register */
-static int mlxbf_pmc_secure_write(void __iomem *addr, uint32_t command,
- uint64_t value)
+static int mlxbf_pmc_secure_write(void __iomem *addr, u32 command, u64 value)
{
struct arm_smccc_res res;
int status, err = 0;
@@ -945,7 +976,7 @@ static int mlxbf_pmc_secure_write(void __iomem *addr, uint32_t command,
}
/* Write to a performance counter */
-static int mlxbf_pmc_write(void __iomem *addr, int command, uint64_t value)
+static int mlxbf_pmc_write(void __iomem *addr, int command, u64 value)
{
if (pmc->svc_sreg_support)
return mlxbf_pmc_secure_write(addr, command, value);
@@ -959,7 +990,7 @@ static int mlxbf_pmc_write(void __iomem *addr, int command, uint64_t value)
}
/* Check if the register offset is within the mapped region for the block */
-static bool mlxbf_pmc_valid_range(int blk_num, uint32_t 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))
@@ -969,33 +1000,33 @@ static bool mlxbf_pmc_valid_range(int blk_num, uint32_t 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)
+static const struct mlxbf_pmc_events *mlxbf_pmc_event_list(const char *blk, size_t *psize)
{
const struct mlxbf_pmc_events *events;
+ size_t size;
if (strstr(blk, "tilenet")) {
events = mlxbf_pmc_hnfnet_events;
- *size = ARRAY_SIZE(mlxbf_pmc_hnfnet_events);
+ size = ARRAY_SIZE(mlxbf_pmc_hnfnet_events);
} else if (strstr(blk, "tile")) {
events = mlxbf_pmc_hnf_events;
- *size = ARRAY_SIZE(mlxbf_pmc_hnf_events);
+ size = ARRAY_SIZE(mlxbf_pmc_hnf_events);
} else if (strstr(blk, "triogen")) {
events = mlxbf_pmc_smgen_events;
- *size = ARRAY_SIZE(mlxbf_pmc_smgen_events);
+ size = ARRAY_SIZE(mlxbf_pmc_smgen_events);
} else if (strstr(blk, "trio")) {
switch (pmc->event_set) {
case MLXBF_PMC_EVENT_SET_BF1:
events = mlxbf_pmc_trio_events_1;
- *size = ARRAY_SIZE(mlxbf_pmc_trio_events_1);
+ size = ARRAY_SIZE(mlxbf_pmc_trio_events_1);
break;
case MLXBF_PMC_EVENT_SET_BF2:
events = mlxbf_pmc_trio_events_2;
- *size = ARRAY_SIZE(mlxbf_pmc_trio_events_2);
+ size = ARRAY_SIZE(mlxbf_pmc_trio_events_2);
break;
default:
events = NULL;
- *size = 0;
+ size = 0;
break;
}
} else if (strstr(blk, "mss")) {
@@ -1003,51 +1034,63 @@ static const struct mlxbf_pmc_events *mlxbf_pmc_event_list(const char *blk,
case MLXBF_PMC_EVENT_SET_BF1:
case MLXBF_PMC_EVENT_SET_BF2:
events = mlxbf_pmc_mss_events_1;
- *size = ARRAY_SIZE(mlxbf_pmc_mss_events_1);
+ size = ARRAY_SIZE(mlxbf_pmc_mss_events_1);
break;
case MLXBF_PMC_EVENT_SET_BF3:
events = mlxbf_pmc_mss_events_3;
- *size = ARRAY_SIZE(mlxbf_pmc_mss_events_3);
+ size = ARRAY_SIZE(mlxbf_pmc_mss_events_3);
break;
default:
events = NULL;
- *size = 0;
+ size = 0;
break;
}
} else if (strstr(blk, "ecc")) {
events = mlxbf_pmc_ecc_events;
- *size = ARRAY_SIZE(mlxbf_pmc_ecc_events);
+ size = ARRAY_SIZE(mlxbf_pmc_ecc_events);
} else if (strstr(blk, "pcie")) {
events = mlxbf_pmc_pcie_events;
- *size = ARRAY_SIZE(mlxbf_pmc_pcie_events);
+ size = ARRAY_SIZE(mlxbf_pmc_pcie_events);
} else if (strstr(blk, "l3cache")) {
events = mlxbf_pmc_l3c_events;
- *size = ARRAY_SIZE(mlxbf_pmc_l3c_events);
+ size = ARRAY_SIZE(mlxbf_pmc_l3c_events);
} else if (strstr(blk, "gic")) {
events = mlxbf_pmc_smgen_events;
- *size = ARRAY_SIZE(mlxbf_pmc_smgen_events);
+ size = ARRAY_SIZE(mlxbf_pmc_smgen_events);
} else if (strstr(blk, "smmu")) {
events = mlxbf_pmc_smgen_events;
- *size = ARRAY_SIZE(mlxbf_pmc_smgen_events);
+ size = ARRAY_SIZE(mlxbf_pmc_smgen_events);
} else if (strstr(blk, "llt_miss")) {
events = mlxbf_pmc_llt_miss_events;
- *size = ARRAY_SIZE(mlxbf_pmc_llt_miss_events);
+ size = ARRAY_SIZE(mlxbf_pmc_llt_miss_events);
} else if (strstr(blk, "llt")) {
events = mlxbf_pmc_llt_events;
- *size = ARRAY_SIZE(mlxbf_pmc_llt_events);
+ size = ARRAY_SIZE(mlxbf_pmc_llt_events);
+ } else if (strstr(blk, "clock_measure")) {
+ events = mlxbf_pmc_clock_events;
+ size = ARRAY_SIZE(mlxbf_pmc_clock_events);
} else {
events = NULL;
- *size = 0;
+ size = 0;
}
+ if (psize)
+ *psize = size;
+
return events;
}
+static bool mlxbf_pmc_event_supported(const char *blk)
+{
+ return !!mlxbf_pmc_event_list(blk, NULL);
+}
+
/* Get the event number given the name */
static int mlxbf_pmc_get_event_num(const char *blk, const char *evt)
{
const struct mlxbf_pmc_events *events;
- int i, size;
+ unsigned int i;
+ size_t size;
events = mlxbf_pmc_event_list(blk, &size);
if (!events)
@@ -1062,10 +1105,11 @@ 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 i;
+ size_t size;
events = mlxbf_pmc_event_list(blk, &size);
if (!events)
@@ -1080,9 +1124,9 @@ 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)
{
- uint32_t perfcnt_cfg = 0;
+ u32 perfcnt_cfg = 0;
if (enable)
perfcnt_cfg |= MLXBF_PMC_L3C_PERF_CNT_CFG_EN;
@@ -1095,12 +1139,9 @@ 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, uint32_t cnt_num,
- uint32_t evt)
+static int mlxbf_pmc_program_l3_counter(unsigned int blk_num, u32 cnt_num, u32 evt)
{
- uint32_t perfcnt_sel_1 = 0;
- uint32_t perfcnt_sel = 0;
- uint32_t *wordaddr;
+ u32 perfcnt_sel_1 = 0, perfcnt_sel = 0, *wordaddr;
void __iomem *pmcaddr;
int ret;
@@ -1162,11 +1203,10 @@ static int mlxbf_pmc_program_l3_counter(int blk_num, uint32_t cnt_num,
}
/* Method to handle crspace counter programming */
-static int mlxbf_pmc_program_crspace_counter(int blk_num, uint32_t cnt_num,
- uint32_t evt)
+static int mlxbf_pmc_program_crspace_counter(unsigned int blk_num, u32 cnt_num, u32 evt)
{
- uint32_t word;
- void *addr;
+ void __iomem *addr;
+ u32 word;
int ret;
addr = pmc->block[blk_num].mmio_base +
@@ -1187,9 +1227,9 @@ static int mlxbf_pmc_program_crspace_counter(int blk_num, uint32_t cnt_num,
}
/* Method to clear crspace counter value */
-static int mlxbf_pmc_clear_crspace_counter(int blk_num, uint32_t cnt_num)
+static int mlxbf_pmc_clear_crspace_counter(unsigned int blk_num, u32 cnt_num)
{
- void *addr;
+ void __iomem *addr;
addr = pmc->block[blk_num].mmio_base +
MLXBF_PMC_CRSPACE_PERFMON_VAL0(pmc->block[blk_num].counters) +
@@ -1199,10 +1239,9 @@ static int mlxbf_pmc_clear_crspace_counter(int blk_num, uint32_t cnt_num)
}
/* Method to program a counter to monitor an event */
-static int mlxbf_pmc_program_counter(int blk_num, uint32_t cnt_num,
- uint32_t evt, bool is_l3)
+static int mlxbf_pmc_program_counter(unsigned int blk_num, u32 cnt_num, u32 evt, bool is_l3)
{
- uint64_t perfctl, perfevt, perfmon_cfg;
+ u64 perfctl, perfevt, perfmon_cfg;
if (cnt_num >= pmc->block[blk_num].counters)
return -ENODEV;
@@ -1263,12 +1302,11 @@ static int mlxbf_pmc_program_counter(int blk_num, uint32_t cnt_num,
}
/* Method to handle l3 counter reads */
-static int mlxbf_pmc_read_l3_counter(int blk_num, uint32_t cnt_num,
- uint64_t *result)
+static int mlxbf_pmc_read_l3_counter(unsigned int blk_num, u32 cnt_num, u64 *result)
{
- uint32_t perfcnt_low = 0, perfcnt_high = 0;
- uint64_t value;
+ u32 perfcnt_low = 0, perfcnt_high = 0;
int status;
+ u64 value;
status = mlxbf_pmc_readl(pmc->block[blk_num].mmio_base +
MLXBF_PMC_L3C_PERF_CNT_LOW +
@@ -1295,11 +1333,10 @@ static int mlxbf_pmc_read_l3_counter(int blk_num, uint32_t cnt_num,
}
/* Method to handle crspace counter reads */
-static int mlxbf_pmc_read_crspace_counter(int blk_num, uint32_t cnt_num,
- uint64_t *result)
+static int mlxbf_pmc_read_crspace_counter(unsigned int blk_num, u32 cnt_num, u64 *result)
{
- uint32_t value;
int status = 0;
+ u32 value;
status = mlxbf_pmc_readl(pmc->block[blk_num].mmio_base +
MLXBF_PMC_CRSPACE_PERFMON_VAL0(pmc->block[blk_num].counters) +
@@ -1313,11 +1350,10 @@ static int mlxbf_pmc_read_crspace_counter(int blk_num, uint32_t cnt_num,
}
/* Method to read the counter value */
-static int mlxbf_pmc_read_counter(int blk_num, uint32_t cnt_num, bool is_l3,
- uint64_t *result)
+static int mlxbf_pmc_read_counter(unsigned int blk_num, u32 cnt_num, bool is_l3, u64 *result)
{
- uint32_t perfcfg_offset, perfval_offset;
- uint64_t perfmon_cfg;
+ u32 perfcfg_offset, perfval_offset;
+ u64 perfmon_cfg;
int status;
if (cnt_num >= pmc->block[blk_num].counters)
@@ -1351,13 +1387,11 @@ static int mlxbf_pmc_read_counter(int blk_num, uint32_t cnt_num, bool is_l3,
}
/* Method to read L3 block event */
-static int mlxbf_pmc_read_l3_event(int blk_num, uint32_t cnt_num,
- uint64_t *result)
+static int mlxbf_pmc_read_l3_event(unsigned int blk_num, u32 cnt_num, u64 *result)
{
- uint32_t perfcnt_sel = 0, perfcnt_sel_1 = 0;
- uint32_t *wordaddr;
+ u32 perfcnt_sel = 0, perfcnt_sel_1 = 0, *wordaddr;
void __iomem *pmcaddr;
- uint64_t evt;
+ u64 evt;
/* Select appropriate register information */
switch (cnt_num) {
@@ -1405,11 +1439,10 @@ static int mlxbf_pmc_read_l3_event(int blk_num, uint32_t cnt_num,
}
/* Method to read crspace block event */
-static int mlxbf_pmc_read_crspace_event(int blk_num, uint32_t cnt_num,
- uint64_t *result)
+static int mlxbf_pmc_read_crspace_event(unsigned int blk_num, u32 cnt_num, u64 *result)
{
- uint32_t word, evt;
- void *addr;
+ u32 word, evt;
+ void __iomem *addr;
int ret;
addr = pmc->block[blk_num].mmio_base +
@@ -1429,11 +1462,10 @@ static int mlxbf_pmc_read_crspace_event(int blk_num, uint32_t cnt_num,
}
/* Method to find the event currently being monitored by a counter */
-static int mlxbf_pmc_read_event(int blk_num, uint32_t cnt_num, bool is_l3,
- uint64_t *result)
+static int mlxbf_pmc_read_event(unsigned int blk_num, u32 cnt_num, bool is_l3, u64 *result)
{
- uint32_t perfcfg_offset, perfval_offset;
- uint64_t perfmon_cfg, perfevt;
+ u32 perfcfg_offset, perfval_offset;
+ u64 perfmon_cfg, perfevt;
if (cnt_num >= pmc->block[blk_num].counters)
return -EINVAL;
@@ -1469,16 +1501,17 @@ static int mlxbf_pmc_read_event(int blk_num, uint32_t cnt_num, bool is_l3,
}
/* Method to read a register */
-static int mlxbf_pmc_read_reg(int blk_num, uint32_t offset, uint64_t *result)
+static int mlxbf_pmc_read_reg(unsigned int blk_num, u32 offset, u64 *result)
{
- uint32_t ecc_out;
+ u32 reg;
- if (strstr(pmc->block_name[blk_num], "ecc")) {
+ if ((strstr(pmc->block_name[blk_num], "ecc")) ||
+ (strstr(pmc->block_name[blk_num], "clock_measure"))) {
if (mlxbf_pmc_readl(pmc->block[blk_num].mmio_base + offset,
- &ecc_out))
+ &reg))
return -EFAULT;
- *result = ecc_out;
+ *result = reg;
return 0;
}
@@ -1490,8 +1523,11 @@ static int mlxbf_pmc_read_reg(int blk_num, uint32_t offset, uint64_t *result)
}
/* Method to write to a register */
-static int mlxbf_pmc_write_reg(int blk_num, uint32_t offset, uint64_t data)
+static int mlxbf_pmc_write_reg(unsigned int blk_num, u32 offset, u64 data)
{
+ if (strstr(pmc->block_name[blk_num], "clock_measure"))
+ return -EINVAL;
+
if (strstr(pmc->block_name[blk_num], "ecc")) {
return mlxbf_pmc_write(pmc->block[blk_num].mmio_base + offset,
MLXBF_PMC_WRITE_REG_32, data);
@@ -1510,9 +1546,10 @@ 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;
bool is_l3 = false;
- uint64_t value;
+ int offset;
+ u64 value;
blk_num = attr_counter->nr;
cnt_num = attr_counter->index;
@@ -1544,14 +1581,16 @@ 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, data;
bool is_l3 = false;
- uint64_t evt_num;
+ u64 evt_num;
+ int offset;
+ 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;
@@ -1580,7 +1619,7 @@ 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
@@ -1595,10 +1634,11 @@ 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;
- uint64_t evt_num;
char *evt_name;
+ u64 evt_num;
+ int err;
blk_num = attr_event->nr;
cnt_num = attr_event->index;
@@ -1624,8 +1664,10 @@ 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;
bool is_l3 = false;
+ int evt_num;
+ int err;
blk_num = attr_event->nr;
cnt_num = attr_event->index;
@@ -1636,7 +1678,7 @@ 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;
}
@@ -1658,9 +1700,11 @@ 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;
const struct mlxbf_pmc_events *events;
char e_info[MLXBF_PMC_EVENT_INFO_LEN];
+ unsigned int blk_num, i, len = 0;
+ size_t size;
+ int ret = 0;
blk_num = attr_event_list->nr;
@@ -1686,8 +1730,8 @@ 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);
- uint32_t perfcnt_cfg, word;
- int blk_num, value;
+ unsigned int blk_num, value;
+ u32 perfcnt_cfg, word;
blk_num = attr_enable->nr;
@@ -1707,7 +1751,7 @@ 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 */
@@ -1717,12 +1761,13 @@ 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;
- uint32_t word;
+ 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;
@@ -1759,14 +1804,61 @@ static ssize_t mlxbf_pmc_enable_store(struct device *dev,
return count;
}
+/* Show function for "count_clock" sysfs files - only for crspace */
+static ssize_t mlxbf_pmc_count_clock_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct mlxbf_pmc_attribute *attr_count_clock = container_of(
+ attr, struct mlxbf_pmc_attribute, dev_attr);
+ unsigned int blk_num;
+ u32 reg;
+
+ blk_num = attr_count_clock->nr;
+
+ if (mlxbf_pmc_readl(pmc->block[blk_num].mmio_base +
+ MLXBF_PMC_CRSPACE_PERFMON_COUNT_CLOCK(pmc->block[blk_num].counters),
+ &reg))
+ return -EINVAL;
+
+ return sysfs_emit(buf, "%u\n", reg);
+}
+
+/* Store function for "count_clock" sysfs files - only for crspace */
+static ssize_t mlxbf_pmc_count_clock_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct mlxbf_pmc_attribute *attr_count_clock = container_of(
+ attr, struct mlxbf_pmc_attribute, dev_attr);
+ unsigned int blk_num;
+ u32 reg;
+ int err;
+
+ blk_num = attr_count_clock->nr;
+
+ err = kstrtouint(buf, 0, &reg);
+ if (err < 0)
+ return err;
+
+ mlxbf_pmc_write(pmc->block[blk_num].mmio_base +
+ MLXBF_PMC_CRSPACE_PERFMON_COUNT_CLOCK(pmc->block[blk_num].counters),
+ MLXBF_PMC_WRITE_REG_32, reg);
+
+ return count;
+}
+
/* 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;
+
+ if (!mlxbf_pmc_event_supported(pmc->block_name[blk_num]))
+ return -ENOENT;
/* "event_list" sysfs to list events supported by the block */
attr = &pmc->block[blk_num].attr_event_list;
+ sysfs_attr_init(&attr->dev_attr.attr);
attr->dev_attr.attr.mode = 0444;
attr->dev_attr.show = mlxbf_pmc_event_list_show;
attr->nr = blk_num;
@@ -1780,6 +1872,7 @@ static int mlxbf_pmc_init_perftype_counter(struct device *dev, int blk_num)
if (strstr(pmc->block_name[blk_num], "l3cache") ||
((pmc->block[blk_num].type == MLXBF_PMC_TYPE_CRSPACE))) {
attr = &pmc->block[blk_num].attr_enable;
+ sysfs_attr_init(&attr->dev_attr.attr);
attr->dev_attr.attr.mode = 0644;
attr->dev_attr.show = mlxbf_pmc_enable_show;
attr->dev_attr.store = mlxbf_pmc_enable_store;
@@ -1792,6 +1885,21 @@ static int mlxbf_pmc_init_perftype_counter(struct device *dev, int blk_num)
attr = NULL;
}
+ if (pmc->block[blk_num].type == MLXBF_PMC_TYPE_CRSPACE) {
+ /* Program crspace counters to count clock cycles using "count_clock" sysfs */
+ attr = &pmc->block[blk_num].attr_count_clock;
+ attr->dev_attr.attr.mode = 0644;
+ attr->dev_attr.show = mlxbf_pmc_count_clock_show;
+ attr->dev_attr.store = mlxbf_pmc_count_clock_store;
+ attr->nr = blk_num;
+ attr->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
+ "count_clock");
+ if (!attr->dev_attr.attr.name)
+ return -ENOMEM;
+ pmc->block[blk_num].block_attr[++i] = &attr->dev_attr.attr;
+ attr = NULL;
+ }
+
pmc->block[blk_num].attr_counter = devm_kcalloc(
dev, pmc->block[blk_num].counters,
sizeof(struct mlxbf_pmc_attribute), GFP_KERNEL);
@@ -1807,26 +1915,26 @@ static int mlxbf_pmc_init_perftype_counter(struct device *dev, int blk_num)
/* "eventX" and "counterX" sysfs to program and read counter values */
for (j = 0; j < pmc->block[blk_num].counters; ++j) {
attr = &pmc->block[blk_num].attr_counter[j];
+ sysfs_attr_init(&attr->dev_attr.attr);
attr->dev_attr.attr.mode = 0644;
attr->dev_attr.show = mlxbf_pmc_counter_show;
attr->dev_attr.store = mlxbf_pmc_counter_store;
attr->index = j;
attr->nr = blk_num;
- attr->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
- "counter%d", j);
+ attr->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL, "counter%u", j);
if (!attr->dev_attr.attr.name)
return -ENOMEM;
pmc->block[blk_num].block_attr[++i] = &attr->dev_attr.attr;
attr = NULL;
attr = &pmc->block[blk_num].attr_event[j];
+ sysfs_attr_init(&attr->dev_attr.attr);
attr->dev_attr.attr.mode = 0644;
attr->dev_attr.show = mlxbf_pmc_event_show;
attr->dev_attr.store = mlxbf_pmc_event_store;
attr->index = j;
attr->nr = blk_num;
- attr->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
- "event%d", j);
+ attr->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL, "event%u", j);
if (!attr->dev_attr.attr.name)
return -ENOMEM;
pmc->block[blk_num].block_attr[++i] = &attr->dev_attr.attr;
@@ -1837,30 +1945,32 @@ 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;
+ size_t count = 0;
- events = mlxbf_pmc_event_list(pmc->block_name[blk_num], &j);
+ events = mlxbf_pmc_event_list(pmc->block_name[blk_num], &count);
if (!events)
- return -EINVAL;
+ return -ENOENT;
pmc->block[blk_num].attr_event = devm_kcalloc(
- dev, j, sizeof(struct mlxbf_pmc_attribute), GFP_KERNEL);
+ dev, count, sizeof(struct mlxbf_pmc_attribute), GFP_KERNEL);
if (!pmc->block[blk_num].attr_event)
return -ENOMEM;
- while (j > 0) {
- --j;
- attr = &pmc->block[blk_num].attr_event[j];
+ while (count > 0) {
+ --count;
+ attr = &pmc->block[blk_num].attr_event[count];
+ sysfs_attr_init(&attr->dev_attr.attr);
attr->dev_attr.attr.mode = 0644;
attr->dev_attr.show = mlxbf_pmc_counter_show;
attr->dev_attr.store = mlxbf_pmc_counter_store;
attr->nr = blk_num;
attr->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL,
- events[j].evt_name);
+ events[count].evt_name);
if (!attr->dev_attr.attr.name)
return -ENOMEM;
pmc->block[blk_num].block_attr[i] = &attr->dev_attr.attr;
@@ -1872,7 +1982,7 @@ 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;
@@ -1883,7 +1993,7 @@ static int mlxbf_pmc_create_groups(struct device *dev, int blk_num)
else if (pmc->block[blk_num].type == MLXBF_PMC_TYPE_REGISTER)
err = mlxbf_pmc_init_perftype_reg(dev, blk_num);
else
- err = -EINVAL;
+ err = -ENOENT;
if (err)
return err;
@@ -1914,19 +2024,20 @@ static bool mlxbf_pmc_guid_match(const guid_t *guid,
/* Helper to map the Performance Counters from the varios blocks */
static int mlxbf_pmc_map_counters(struct device *dev)
{
- uint64_t info[MLXBF_PMC_INFO_SZ];
- int i, tile_num, ret;
+ u64 info[MLXBF_PMC_INFO_SZ];
+ 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)
@@ -1936,9 +2047,9 @@ 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))
@@ -1947,17 +2058,17 @@ 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))
@@ -1987,6 +2098,10 @@ static int mlxbf_pmc_map_counters(struct device *dev)
return -ENOMEM;
ret = mlxbf_pmc_create_groups(dev, i);
+ if (ret == -ENOENT) {
+ dev_warn(dev, "ignoring unsupported block: '%s'\n", pmc->block_name[i]);
+ continue;
+ }
if (ret)
return ret;
}
generated by cgit (git 2.34.1) at 2025-07-25 20:47:01 +0000