drm/xe/cri: Add new performance limit reasons bits

Crescent Island has some additional and different bits for performance
limit reasons. Add the new definitions and use them for CRI.

Signed-off-by: Sk Anirban <sk.anirban@intel.com>
Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Link: https://patch.msgid.link/20251029-gt-throttle-cri-v3-1-d1f5abbb8114@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
This commit is contained in:
Sk Anirban 2025-10-29 16:45:03 -07:00 committed by Lucas De Marchi
parent d24f7d1f62
commit 59ab71d3db
2 changed files with 261 additions and 3 deletions

View File

@ -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)

View File

@ -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;