From: Lucas De Marchi <lucas.demarchi@intel.com>
To: intel-xe@lists.freedesktop.org
Cc: Lucas De Marchi <lucas.demarchi@intel.com>,
Raag Jadav <raag.jadav@intel.com>
Subject: [PATCH v2 2/8] drm/xe/gt_throttle: Tidy up perf reasons reading
Date: Sun, 26 Oct 2025 22:57:14 -0700 [thread overview]
Message-ID: <20251026-gt-throttle-cri-v2-2-41f8288a71a7@intel.com> (raw)
In-Reply-To: <20251026-gt-throttle-cri-v2-0-41f8288a71a7@intel.com>
There's no need to be so verbose with two functions per bit:
read_reason_xxxxx() and reason_xxxxx_show(). Drop the former and just
use a new is_throttled_by() that receives the mask as parameter.
Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
drivers/gpu/drm/xe/xe_gt_throttle.c | 182 +++++-------------------------------
1 file changed, 21 insertions(+), 161 deletions(-)
diff --git a/drivers/gpu/drm/xe/xe_gt_throttle.c b/drivers/gpu/drm/xe/xe_gt_throttle.c
index a4fe43f4663dd..c69710f2dbeb5 100644
--- a/drivers/gpu/drm/xe/xe_gt_throttle.c
+++ b/drivers/gpu/drm/xe/xe_gt_throttle.c
@@ -85,130 +85,9 @@ static u32 read_status(struct xe_gt *gt)
return status;
}
-static u32 read_reason_pl1(struct xe_gt *gt)
+static bool is_throttled_by(struct xe_gt *gt, u32 mask)
{
- u32 pl1 = xe_gt_throttle_get_limit_reasons(gt) & POWER_LIMIT_1_MASK;
-
- return pl1;
-}
-
-static u32 read_reason_pl2(struct xe_gt *gt)
-{
- u32 pl2 = xe_gt_throttle_get_limit_reasons(gt) & POWER_LIMIT_2_MASK;
-
- return pl2;
-}
-
-static u32 read_reason_pl4(struct xe_gt *gt)
-{
- u32 pl4 = xe_gt_throttle_get_limit_reasons(gt) & POWER_LIMIT_4_MASK;
-
- return pl4;
-}
-
-static u32 read_reason_thermal(struct xe_gt *gt)
-{
- u32 thermal = xe_gt_throttle_get_limit_reasons(gt) & THERMAL_LIMIT_MASK;
-
- 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;
-
- return prochot;
-}
-
-static u32 read_reason_ratl(struct xe_gt *gt)
-{
- u32 ratl = xe_gt_throttle_get_limit_reasons(gt) & RATL_MASK;
-
- return ratl;
-}
-
-static u32 read_reason_vr_thermalert(struct xe_gt *gt)
-{
- u32 thermalert = xe_gt_throttle_get_limit_reasons(gt) & VR_THERMALERT_MASK;
-
- 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;
-
- 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;
+ return xe_gt_throttle_get_limit_reasons(gt) & mask;
}
static ssize_t status_show(struct kobject *kobj,
@@ -216,9 +95,8 @@ static ssize_t status_show(struct kobject *kobj,
{
struct device *dev = kobj_to_dev(kobj);
struct xe_gt *gt = dev_to_gt(dev);
- bool status = !!read_status(gt);
- return sysfs_emit(buff, "%u\n", status);
+ return sysfs_emit(buff, "%u\n", !!read_status(gt));
}
static struct kobj_attribute attr_status = __ATTR_RO(status);
@@ -227,9 +105,8 @@ static ssize_t reason_pl1_show(struct kobject *kobj,
{
struct device *dev = kobj_to_dev(kobj);
struct xe_gt *gt = dev_to_gt(dev);
- bool pl1 = !!read_reason_pl1(gt);
- return sysfs_emit(buff, "%u\n", pl1);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, POWER_LIMIT_1_MASK));
}
static struct kobj_attribute attr_reason_pl1 = __ATTR_RO(reason_pl1);
@@ -238,9 +115,8 @@ static ssize_t reason_pl2_show(struct kobject *kobj,
{
struct device *dev = kobj_to_dev(kobj);
struct xe_gt *gt = dev_to_gt(dev);
- bool pl2 = !!read_reason_pl2(gt);
- return sysfs_emit(buff, "%u\n", pl2);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, POWER_LIMIT_2_MASK));
}
static struct kobj_attribute attr_reason_pl2 = __ATTR_RO(reason_pl2);
@@ -249,9 +125,8 @@ static ssize_t reason_pl4_show(struct kobject *kobj,
{
struct device *dev = kobj_to_dev(kobj);
struct xe_gt *gt = dev_to_gt(dev);
- bool pl4 = !!read_reason_pl4(gt);
- return sysfs_emit(buff, "%u\n", pl4);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, POWER_LIMIT_4_MASK));
}
static struct kobj_attribute attr_reason_pl4 = __ATTR_RO(reason_pl4);
@@ -260,9 +135,8 @@ static ssize_t reason_thermal_show(struct kobject *kobj,
{
struct device *dev = kobj_to_dev(kobj);
struct xe_gt *gt = dev_to_gt(dev);
- bool thermal = !!read_reason_thermal(gt);
- return sysfs_emit(buff, "%u\n", thermal);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, THERMAL_LIMIT_MASK));
}
static struct kobj_attribute attr_reason_thermal = __ATTR_RO(reason_thermal);
@@ -271,9 +145,8 @@ static ssize_t reason_soc_thermal_show(struct kobject *kobj,
{
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);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, SOC_THERMAL_LIMIT_MASK));
}
static struct kobj_attribute attr_reason_soc_thermal = __ATTR_RO(reason_soc_thermal);
@@ -282,9 +155,8 @@ static ssize_t reason_prochot_show(struct kobject *kobj,
{
struct device *dev = kobj_to_dev(kobj);
struct xe_gt *gt = dev_to_gt(dev);
- bool prochot = !!read_reason_prochot(gt);
- return sysfs_emit(buff, "%u\n", prochot);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, PROCHOT_MASK));
}
static struct kobj_attribute attr_reason_prochot = __ATTR_RO(reason_prochot);
@@ -293,9 +165,8 @@ static ssize_t reason_ratl_show(struct kobject *kobj,
{
struct device *dev = kobj_to_dev(kobj);
struct xe_gt *gt = dev_to_gt(dev);
- bool ratl = !!read_reason_ratl(gt);
- return sysfs_emit(buff, "%u\n", ratl);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, RATL_MASK));
}
static struct kobj_attribute attr_reason_ratl = __ATTR_RO(reason_ratl);
@@ -304,9 +175,8 @@ static ssize_t reason_vr_thermalert_show(struct kobject *kobj,
{
struct device *dev = kobj_to_dev(kobj);
struct xe_gt *gt = dev_to_gt(dev);
- bool thermalert = !!read_reason_vr_thermalert(gt);
- return sysfs_emit(buff, "%u\n", thermalert);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, VR_THERMALERT_MASK));
}
static struct kobj_attribute attr_reason_vr_thermalert = __ATTR_RO(reason_vr_thermalert);
@@ -315,9 +185,8 @@ static ssize_t reason_soc_avg_thermal_show(struct kobject *kobj,
{
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);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, SOC_AVG_THERMAL_MASK));
}
static struct kobj_attribute attr_reason_soc_avg_thermal = __ATTR_RO(reason_soc_avg_thermal);
@@ -326,9 +195,8 @@ static ssize_t reason_vr_tdc_show(struct kobject *kobj,
{
struct device *dev = kobj_to_dev(kobj);
struct xe_gt *gt = dev_to_gt(dev);
- bool tdc = !!read_reason_vr_tdc(gt);
- return sysfs_emit(buff, "%u\n", tdc);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, VR_TDC_MASK));
}
static struct kobj_attribute attr_reason_vr_tdc = __ATTR_RO(reason_vr_tdc);
@@ -337,9 +205,8 @@ static ssize_t reason_fastvmode_show(struct kobject *kobj,
{
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);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, FASTVMODE_MASK));
}
static struct kobj_attribute attr_reason_fastvmode = __ATTR_RO(reason_fastvmode);
@@ -348,9 +215,8 @@ static ssize_t reason_mem_thermal_show(struct kobject *kobj,
{
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);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, MEM_THERMAL_MASK));
}
static struct kobj_attribute attr_reason_mem_thermal = __ATTR_RO(reason_mem_thermal);
@@ -359,9 +225,8 @@ static ssize_t reason_vr_thermal_show(struct kobject *kobj,
{
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);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, VR_THERMAL_MASK));
}
static struct kobj_attribute attr_reason_vr_thermal = __ATTR_RO(reason_vr_thermal);
@@ -370,9 +235,8 @@ static ssize_t reason_iccmax_show(struct kobject *kobj,
{
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);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, ICCMAX_MASK));
}
static struct kobj_attribute attr_reason_iccmax = __ATTR_RO(reason_iccmax);
@@ -381,9 +245,8 @@ static ssize_t reason_psys_pl1_show(struct kobject *kobj,
{
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);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, PSYS_PL1_MASK));
}
static struct kobj_attribute attr_reason_psys_pl1 = __ATTR_RO(reason_psys_pl1);
@@ -392,9 +255,8 @@ static ssize_t reason_psys_pl2_show(struct kobject *kobj,
{
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);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, PSYS_PL2_MASK));
}
static struct kobj_attribute attr_reason_psys_pl2 = __ATTR_RO(reason_psys_pl2);
@@ -403,9 +265,8 @@ static ssize_t reason_p0_freq_show(struct kobject *kobj,
{
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);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, P0_FREQ_MASK));
}
static struct kobj_attribute attr_reason_p0_freq = __ATTR_RO(reason_p0_freq);
@@ -414,9 +275,8 @@ static ssize_t reason_psys_crit_show(struct kobject *kobj,
{
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);
+ return sysfs_emit(buff, "%u\n", is_throttled_by(gt, PSYS_CRIT_MASK));
}
static struct kobj_attribute attr_reason_psys_crit = __ATTR_RO(reason_psys_crit);
--
2.51.0
next prev parent reply other threads:[~2025-10-27 5:58 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-27 5:57 [PATCH v2 0/8] drm/xe: CRI support in gt_throttle + refactors Lucas De Marchi
2025-10-27 5:57 ` [PATCH v2 1/8] drm/xe/cri: Add new performance limit reasons bits Lucas De Marchi
2025-10-27 5:57 ` Lucas De Marchi [this message]
2025-10-27 5:57 ` [PATCH v2 3/8] drm/xe/gt_throttle: Always read and mask Lucas De Marchi
2025-10-27 5:57 ` [PATCH v2 4/8] drm/xe/gt_throttle: Add throttle_to_gt() Lucas De Marchi
2025-10-27 5:57 ` [PATCH v2 5/8] drm/xe/gt_throttle: Tidy up attribute definition Lucas De Marchi
2025-10-27 11:38 ` Raag Jadav
2025-10-27 5:57 ` [PATCH v2 6/8] drm/xe: Improve freq and throttle documentation Lucas De Marchi
2025-10-27 11:43 ` Raag Jadav
2025-10-27 5:57 ` [PATCH v2 7/8] drm/xe/gt_throttle: Drop individual show functions Lucas De Marchi
2025-10-27 12:15 ` Raag Jadav
2025-10-27 5:57 ` [PATCH v2 8/8] drm/xe/gt_throttle: Avoid TOCTOU when monitoring reasons Lucas De Marchi
2025-10-27 11:50 ` Raag Jadav
2025-10-27 13:26 ` Lucas De Marchi
2025-10-28 5:24 ` Raag Jadav
2025-10-28 14:02 ` Rodrigo Vivi
2025-10-28 16:04 ` Lucas De Marchi
2025-10-29 20:24 ` Rodrigo Vivi
2025-10-27 6:04 ` ✗ CI.checkpatch: warning for drm/xe: CRI support in gt_throttle + refactors (rev2) Patchwork
2025-10-27 6:05 ` ✓ CI.KUnit: success " Patchwork
2025-10-27 6:51 ` ✓ Xe.CI.BAT: " Patchwork
2025-10-27 8:25 ` ✗ Xe.CI.Full: failure " Patchwork
2025-10-27 11:38 ` [PATCH v2 0/8] drm/xe: CRI support in gt_throttle + refactors Raag Jadav
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