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-rw-r--r--drivers/gpu/drm/xe/regs/xe_gt_regs.h13
-rw-r--r--drivers/gpu/drm/xe/xe_gt_throttle.c251
2 files changed, 261 insertions, 3 deletions
diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
index a895a8e801a9..2088256ad381 100644
--- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h
+++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
@@ -590,6 +590,7 @@
#define GT_GFX_RC6 XE_REG(0x138108)
#define GT0_PERF_LIMIT_REASONS XE_REG(0x1381a8)
+/* Common performance limit reason bits - available on all platforms */
#define GT0_PERF_LIMIT_REASONS_MASK 0xde3
#define PROCHOT_MASK REG_BIT(0)
#define THERMAL_LIMIT_MASK REG_BIT(1)
@@ -599,6 +600,18 @@
#define POWER_LIMIT_4_MASK REG_BIT(8)
#define POWER_LIMIT_1_MASK REG_BIT(10)
#define POWER_LIMIT_2_MASK REG_BIT(11)
+/* Platform-specific performance limit reason bits - for Crescent Island */
+#define CRI_PERF_LIMIT_REASONS_MASK 0xfdff
+#define SOC_THERMAL_LIMIT_MASK REG_BIT(1)
+#define MEM_THERMAL_MASK REG_BIT(2)
+#define VR_THERMAL_MASK REG_BIT(3)
+#define ICCMAX_MASK REG_BIT(4)
+#define SOC_AVG_THERMAL_MASK REG_BIT(6)
+#define FASTVMODE_MASK REG_BIT(7)
+#define PSYS_PL1_MASK REG_BIT(12)
+#define PSYS_PL2_MASK REG_BIT(13)
+#define P0_FREQ_MASK REG_BIT(14)
+#define PSYS_CRIT_MASK REG_BIT(15)
#define GT_PERF_STATUS XE_REG(0x1381b4)
#define VOLTAGE_MASK REG_GENMASK(10, 0)
diff --git a/drivers/gpu/drm/xe/xe_gt_throttle.c b/drivers/gpu/drm/xe/xe_gt_throttle.c
index aa962c783cdf..a4fe43f4663d 100644
--- a/drivers/gpu/drm/xe/xe_gt_throttle.c
+++ b/drivers/gpu/drm/xe/xe_gt_throttle.c
@@ -12,6 +12,7 @@
#include "xe_gt_sysfs.h"
#include "xe_gt_throttle.h"
#include "xe_mmio.h"
+#include "xe_platform_types.h"
#include "xe_pm.h"
/**
@@ -28,6 +29,24 @@
* device/gt#/freq0/throttle/reason_ratl - Frequency throttle due to RATL
* device/gt#/freq0/throttle/reason_vr_thermalert - Frequency throttle due to VR THERMALERT
* device/gt#/freq0/throttle/reason_vr_tdc - Frequency throttle due to VR TDC
+ *
+ * The following attributes are available on Crescent Island platform:
+ * device/gt#/freq0/throttle/status - Overall throttle status
+ * device/gt#/freq0/throttle/reason_pl1 - Frequency throttle due to package PL1
+ * device/gt#/freq0/throttle/reason_pl2 - Frequency throttle due to package PL2
+ * device/gt#/freq0/throttle/reason_pl4 - Frequency throttle due to PL4
+ * device/gt#/freq0/throttle/reason_prochot - Frequency throttle due to prochot
+ * device/gt#/freq0/throttle/reason_soc_thermal - Frequency throttle due to SoC thermal
+ * device/gt#/freq0/throttle/reason_mem_thermal - Frequency throttle due to memory thermal
+ * device/gt#/freq0/throttle/reason_vr_thermal - Frequency throttle due to VR thermal
+ * device/gt#/freq0/throttle/reason_iccmax - Frequency throttle due to ICCMAX
+ * device/gt#/freq0/throttle/reason_ratl - Frequency throttle due to RATL thermal algorithm
+ * device/gt#/freq0/throttle/reason_soc_avg_thermal - Frequency throttle due to SoC average temp
+ * device/gt#/freq0/throttle/reason_fastvmode - Frequency throttle due to VR is hitting FastVMode
+ * device/gt#/freq0/throttle/reason_psys_pl1 - Frequency throttle due to PSYS PL1
+ * device/gt#/freq0/throttle/reason_psys_pl2 - Frequency throttle due to PSYS PL2
+ * device/gt#/freq0/throttle/reason_p0_freq - Frequency throttle due to P0 frequency
+ * device/gt#/freq0/throttle/reason_psys_crit - Frequency throttle due to PSYS critical
*/
static struct xe_gt *
@@ -52,9 +71,17 @@ u32 xe_gt_throttle_get_limit_reasons(struct xe_gt *gt)
static u32 read_status(struct xe_gt *gt)
{
- u32 status = xe_gt_throttle_get_limit_reasons(gt) & GT0_PERF_LIMIT_REASONS_MASK;
+ struct xe_device *xe = gt_to_xe(gt);
+ u32 status, mask;
+
+ if (xe->info.platform == XE_CRESCENTISLAND)
+ mask = CRI_PERF_LIMIT_REASONS_MASK;
+ else
+ mask = GT0_PERF_LIMIT_REASONS_MASK;
+ status = xe_gt_throttle_get_limit_reasons(gt) & mask;
xe_gt_dbg(gt, "throttle reasons: 0x%08x\n", status);
+
return status;
}
@@ -86,6 +113,13 @@ static u32 read_reason_thermal(struct xe_gt *gt)
return thermal;
}
+static u32 read_reason_soc_thermal(struct xe_gt *gt)
+{
+ u32 thermal = xe_gt_throttle_get_limit_reasons(gt) & SOC_THERMAL_LIMIT_MASK;
+
+ return thermal;
+}
+
static u32 read_reason_prochot(struct xe_gt *gt)
{
u32 prochot = xe_gt_throttle_get_limit_reasons(gt) & PROCHOT_MASK;
@@ -107,6 +141,13 @@ static u32 read_reason_vr_thermalert(struct xe_gt *gt)
return thermalert;
}
+static u32 read_reason_soc_avg_thermal(struct xe_gt *gt)
+{
+ u32 soc_avg_thermal = xe_gt_throttle_get_limit_reasons(gt) & SOC_AVG_THERMAL_MASK;
+
+ return soc_avg_thermal;
+}
+
static u32 read_reason_vr_tdc(struct xe_gt *gt)
{
u32 tdc = xe_gt_throttle_get_limit_reasons(gt) & VR_TDC_MASK;
@@ -114,6 +155,62 @@ static u32 read_reason_vr_tdc(struct xe_gt *gt)
return tdc;
}
+static u32 read_reason_fastvmode(struct xe_gt *gt)
+{
+ u32 fastvmode = xe_gt_throttle_get_limit_reasons(gt) & FASTVMODE_MASK;
+
+ return fastvmode;
+}
+
+static u32 read_reason_mem_thermal(struct xe_gt *gt)
+{
+ u32 mem_thermal = xe_gt_throttle_get_limit_reasons(gt) & MEM_THERMAL_MASK;
+
+ return mem_thermal;
+}
+
+static u32 read_reason_vr_thermal(struct xe_gt *gt)
+{
+ u32 vr_thermal = xe_gt_throttle_get_limit_reasons(gt) & VR_THERMAL_MASK;
+
+ return vr_thermal;
+}
+
+static u32 read_reason_iccmax(struct xe_gt *gt)
+{
+ u32 iccmax = xe_gt_throttle_get_limit_reasons(gt) & ICCMAX_MASK;
+
+ return iccmax;
+}
+
+static u32 read_reason_psys_pl1(struct xe_gt *gt)
+{
+ u32 psys_pl1 = xe_gt_throttle_get_limit_reasons(gt) & PSYS_PL1_MASK;
+
+ return psys_pl1;
+}
+
+static u32 read_reason_psys_pl2(struct xe_gt *gt)
+{
+ u32 psys_pl2 = xe_gt_throttle_get_limit_reasons(gt) & PSYS_PL2_MASK;
+
+ return psys_pl2;
+}
+
+static u32 read_reason_p0_freq(struct xe_gt *gt)
+{
+ u32 p0_freq = xe_gt_throttle_get_limit_reasons(gt) & P0_FREQ_MASK;
+
+ return p0_freq;
+}
+
+static u32 read_reason_psys_crit(struct xe_gt *gt)
+{
+ u32 psys_crit = xe_gt_throttle_get_limit_reasons(gt) & PSYS_CRIT_MASK;
+
+ return psys_crit;
+}
+
static ssize_t status_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buff)
{
@@ -169,6 +266,17 @@ static ssize_t reason_thermal_show(struct kobject *kobj,
}
static struct kobj_attribute attr_reason_thermal = __ATTR_RO(reason_thermal);
+static ssize_t reason_soc_thermal_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct xe_gt *gt = dev_to_gt(dev);
+ bool thermal = !!read_reason_soc_thermal(gt);
+
+ return sysfs_emit(buff, "%u\n", thermal);
+}
+static struct kobj_attribute attr_reason_soc_thermal = __ATTR_RO(reason_soc_thermal);
+
static ssize_t reason_prochot_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buff)
{
@@ -202,6 +310,17 @@ static ssize_t reason_vr_thermalert_show(struct kobject *kobj,
}
static struct kobj_attribute attr_reason_vr_thermalert = __ATTR_RO(reason_vr_thermalert);
+static ssize_t reason_soc_avg_thermal_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct xe_gt *gt = dev_to_gt(dev);
+ bool avg_thermalert = !!read_reason_soc_avg_thermal(gt);
+
+ return sysfs_emit(buff, "%u\n", avg_thermalert);
+}
+static struct kobj_attribute attr_reason_soc_avg_thermal = __ATTR_RO(reason_soc_avg_thermal);
+
static ssize_t reason_vr_tdc_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buff)
{
@@ -213,6 +332,94 @@ static ssize_t reason_vr_tdc_show(struct kobject *kobj,
}
static struct kobj_attribute attr_reason_vr_tdc = __ATTR_RO(reason_vr_tdc);
+static ssize_t reason_fastvmode_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct xe_gt *gt = dev_to_gt(dev);
+ bool fastvmode = !!read_reason_fastvmode(gt);
+
+ return sysfs_emit(buff, "%u\n", fastvmode);
+}
+static struct kobj_attribute attr_reason_fastvmode = __ATTR_RO(reason_fastvmode);
+
+static ssize_t reason_mem_thermal_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct xe_gt *gt = dev_to_gt(dev);
+ bool mem_thermal = !!read_reason_mem_thermal(gt);
+
+ return sysfs_emit(buff, "%u\n", mem_thermal);
+}
+static struct kobj_attribute attr_reason_mem_thermal = __ATTR_RO(reason_mem_thermal);
+
+static ssize_t reason_vr_thermal_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct xe_gt *gt = dev_to_gt(dev);
+ bool vr_thermal = !!read_reason_vr_thermal(gt);
+
+ return sysfs_emit(buff, "%u\n", vr_thermal);
+}
+static struct kobj_attribute attr_reason_vr_thermal = __ATTR_RO(reason_vr_thermal);
+
+static ssize_t reason_iccmax_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct xe_gt *gt = dev_to_gt(dev);
+ bool iccmax = !!read_reason_iccmax(gt);
+
+ return sysfs_emit(buff, "%u\n", iccmax);
+}
+static struct kobj_attribute attr_reason_iccmax = __ATTR_RO(reason_iccmax);
+
+static ssize_t reason_psys_pl1_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct xe_gt *gt = dev_to_gt(dev);
+ bool psys_pl1 = !!read_reason_psys_pl1(gt);
+
+ return sysfs_emit(buff, "%u\n", psys_pl1);
+}
+static struct kobj_attribute attr_reason_psys_pl1 = __ATTR_RO(reason_psys_pl1);
+
+static ssize_t reason_psys_pl2_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct xe_gt *gt = dev_to_gt(dev);
+ bool psys_pl2 = !!read_reason_psys_pl2(gt);
+
+ return sysfs_emit(buff, "%u\n", psys_pl2);
+}
+static struct kobj_attribute attr_reason_psys_pl2 = __ATTR_RO(reason_psys_pl2);
+
+static ssize_t reason_p0_freq_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct xe_gt *gt = dev_to_gt(dev);
+ bool p0_freq = !!read_reason_p0_freq(gt);
+
+ return sysfs_emit(buff, "%u\n", p0_freq);
+}
+static struct kobj_attribute attr_reason_p0_freq = __ATTR_RO(reason_p0_freq);
+
+static ssize_t reason_psys_crit_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buff)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct xe_gt *gt = dev_to_gt(dev);
+ bool psys_crit = !!read_reason_psys_crit(gt);
+
+ return sysfs_emit(buff, "%u\n", psys_crit);
+}
+static struct kobj_attribute attr_reason_psys_crit = __ATTR_RO(reason_psys_crit);
+
static struct attribute *throttle_attrs[] = {
&attr_status.attr,
&attr_reason_pl1.attr,
@@ -226,24 +433,62 @@ static struct attribute *throttle_attrs[] = {
NULL
};
+static struct attribute *cri_throttle_attrs[] = {
+ &attr_status.attr,
+ &attr_reason_prochot.attr,
+ &attr_reason_soc_thermal.attr,
+ &attr_reason_mem_thermal.attr,
+ &attr_reason_vr_thermal.attr,
+ &attr_reason_iccmax.attr,
+ &attr_reason_ratl.attr,
+ &attr_reason_soc_avg_thermal.attr,
+ &attr_reason_fastvmode.attr,
+ &attr_reason_pl4.attr,
+ &attr_reason_pl1.attr,
+ &attr_reason_pl2.attr,
+ &attr_reason_psys_pl1.attr,
+ &attr_reason_psys_pl2.attr,
+ &attr_reason_p0_freq.attr,
+ &attr_reason_psys_crit.attr,
+ NULL
+};
+
static const struct attribute_group throttle_group_attrs = {
.name = "throttle",
.attrs = throttle_attrs,
};
+static const struct attribute_group cri_throttle_group_attrs = {
+ .name = "throttle",
+ .attrs = cri_throttle_attrs,
+};
+
+static const struct attribute_group *get_platform_throttle_group(struct xe_device *xe)
+{
+ switch (xe->info.platform) {
+ case XE_CRESCENTISLAND:
+ return &cri_throttle_group_attrs;
+ default:
+ return &throttle_group_attrs;
+ }
+}
+
static void gt_throttle_sysfs_fini(void *arg)
{
struct xe_gt *gt = arg;
+ struct xe_device *xe = gt_to_xe(gt);
+ const struct attribute_group *group = get_platform_throttle_group(xe);
- sysfs_remove_group(gt->freq, &throttle_group_attrs);
+ sysfs_remove_group(gt->freq, group);
}
int xe_gt_throttle_init(struct xe_gt *gt)
{
struct xe_device *xe = gt_to_xe(gt);
+ const struct attribute_group *group = get_platform_throttle_group(xe);
int err;
- err = sysfs_create_group(gt->freq, &throttle_group_attrs);
+ err = sysfs_create_group(gt->freq, group);
if (err)
return err;