[PATCH v4 1/2] drm/xe: Make read_perf_limit_reasons globally accessible
John.C.Harrison at Intel.com
John.C.Harrison at Intel.com
Wed Feb 28 01:09:55 UTC 2024
From: John Harrison <John.C.Harrison at Intel.com>
Other driver code beyond the sysfs interface wants to know about
throttling. So make the query function globally accessible.
v2: Revert include order change (review feedback from Lucas)
v3: Remove '_sysfs' from throttle file names and keep limit query in
the same file rather than moving elsewhere (review feedback from
Rodrigo).
Signed-off-by: John Harrison <John.C.Harrison at Intel.com>
---
drivers/gpu/drm/xe/Makefile | 2 +-
drivers/gpu/drm/xe/xe_gt_freq.c | 4 +--
...e_gt_throttle_sysfs.c => xe_gt_throttle.c} | 26 +++++++++----------
drivers/gpu/drm/xe/xe_gt_throttle.h | 17 ++++++++++++
drivers/gpu/drm/xe/xe_gt_throttle_sysfs.h | 16 ------------
5 files changed, 33 insertions(+), 32 deletions(-)
rename drivers/gpu/drm/xe/{xe_gt_throttle_sysfs.c => xe_gt_throttle.c} (86%)
create mode 100644 drivers/gpu/drm/xe/xe_gt_throttle.h
delete mode 100644 drivers/gpu/drm/xe/xe_gt_throttle_sysfs.h
diff --git a/drivers/gpu/drm/xe/Makefile b/drivers/gpu/drm/xe/Makefile
index c531210695db..82b6a3a6a987 100644
--- a/drivers/gpu/drm/xe/Makefile
+++ b/drivers/gpu/drm/xe/Makefile
@@ -87,7 +87,7 @@ xe-y += xe_bb.o \
xe_gt_mcr.o \
xe_gt_pagefault.o \
xe_gt_sysfs.o \
- xe_gt_throttle_sysfs.o \
+ xe_gt_throttle.o \
xe_gt_tlb_invalidation.o \
xe_gt_topology.o \
xe_guc.o \
diff --git a/drivers/gpu/drm/xe/xe_gt_freq.c b/drivers/gpu/drm/xe/xe_gt_freq.c
index 32b9a743629c..d2e035671820 100644
--- a/drivers/gpu/drm/xe/xe_gt_freq.c
+++ b/drivers/gpu/drm/xe/xe_gt_freq.c
@@ -13,7 +13,7 @@
#include "xe_device_types.h"
#include "xe_gt_sysfs.h"
-#include "xe_gt_throttle_sysfs.h"
+#include "xe_gt_throttle.h"
#include "xe_guc_pc.h"
#include "xe_pm.h"
@@ -250,5 +250,5 @@ void xe_gt_freq_init(struct xe_gt *gt)
drm_warn(&xe->drm, "failed to add freq attrs to %s, err: %d\n",
kobject_name(gt->freq), err);
- xe_gt_throttle_sysfs_init(gt);
+ xe_gt_throttle_init(gt);
}
diff --git a/drivers/gpu/drm/xe/xe_gt_throttle_sysfs.c b/drivers/gpu/drm/xe/xe_gt_throttle.c
similarity index 86%
rename from drivers/gpu/drm/xe/xe_gt_throttle_sysfs.c
rename to drivers/gpu/drm/xe/xe_gt_throttle.c
index 9c33045ff1ef..e5113cca41f2 100644
--- a/drivers/gpu/drm/xe/xe_gt_throttle_sysfs.c
+++ b/drivers/gpu/drm/xe/xe_gt_throttle.c
@@ -9,14 +9,14 @@
#include "xe_device.h"
#include "xe_gt.h"
#include "xe_gt_sysfs.h"
-#include "xe_gt_throttle_sysfs.h"
+#include "xe_gt_throttle.h"
#include "xe_mmio.h"
#include "xe_pm.h"
/**
* DOC: Xe GT Throttle
*
- * Provides sysfs entries for frequency throttle reasons in GT
+ * Provides sysfs entries and other helpers for frequency throttle reasons in GT
*
* device/gt#/freq0/throttle/status - Overall status
* device/gt#/freq0/throttle/reason_pl1 - Frequency throttle due to PL1
@@ -35,7 +35,7 @@ dev_to_gt(struct device *dev)
return kobj_to_gt(dev->kobj.parent);
}
-static u32 read_perf_limit_reasons(struct xe_gt *gt)
+u32 xe_gt_throttle_get_limit_reasons(struct xe_gt *gt)
{
u32 reg;
@@ -51,63 +51,63 @@ static u32 read_perf_limit_reasons(struct xe_gt *gt)
static u32 read_status(struct xe_gt *gt)
{
- u32 status = read_perf_limit_reasons(gt) & GT0_PERF_LIMIT_REASONS_MASK;
+ u32 status = xe_gt_throttle_get_limit_reasons(gt) & GT0_PERF_LIMIT_REASONS_MASK;
return status;
}
static u32 read_reason_pl1(struct xe_gt *gt)
{
- u32 pl1 = read_perf_limit_reasons(gt) & POWER_LIMIT_1_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 = read_perf_limit_reasons(gt) & POWER_LIMIT_2_MASK;
+ 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 = read_perf_limit_reasons(gt) & POWER_LIMIT_4_MASK;
+ 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 = read_perf_limit_reasons(gt) & THERMAL_LIMIT_MASK;
+ u32 thermal = xe_gt_throttle_get_limit_reasons(gt) & THERMAL_LIMIT_MASK;
return thermal;
}
static u32 read_reason_prochot(struct xe_gt *gt)
{
- u32 prochot = read_perf_limit_reasons(gt) & PROCHOT_MASK;
+ u32 prochot = xe_gt_throttle_get_limit_reasons(gt) & PROCHOT_MASK;
return prochot;
}
static u32 read_reason_ratl(struct xe_gt *gt)
{
- u32 ratl = read_perf_limit_reasons(gt) & RATL_MASK;
+ 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 = read_perf_limit_reasons(gt) & VR_THERMALERT_MASK;
+ u32 thermalert = xe_gt_throttle_get_limit_reasons(gt) & VR_THERMALERT_MASK;
return thermalert;
}
static u32 read_reason_vr_tdc(struct xe_gt *gt)
{
- u32 tdc = read_perf_limit_reasons(gt) & VR_TDC_MASK;
+ u32 tdc = xe_gt_throttle_get_limit_reasons(gt) & VR_TDC_MASK;
return tdc;
}
@@ -236,7 +236,7 @@ static void gt_throttle_sysfs_fini(struct drm_device *drm, void *arg)
sysfs_remove_group(gt->freq, &throttle_group_attrs);
}
-void xe_gt_throttle_sysfs_init(struct xe_gt *gt)
+void xe_gt_throttle_init(struct xe_gt *gt)
{
struct xe_device *xe = gt_to_xe(gt);
int err;
diff --git a/drivers/gpu/drm/xe/xe_gt_throttle.h b/drivers/gpu/drm/xe/xe_gt_throttle.h
new file mode 100644
index 000000000000..03c20c837e67
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_gt_throttle.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef _XE_GT_THROTTLE_H_
+#define _XE_GT_THROTTLE_H_
+
+#include <drm/drm_managed.h>
+
+struct xe_gt;
+
+void xe_gt_throttle_init(struct xe_gt *gt);
+
+u32 xe_gt_throttle_get_limit_reasons(struct xe_gt *gt);
+
+#endif /* _XE_GT_THROTTLE_H_ */
diff --git a/drivers/gpu/drm/xe/xe_gt_throttle_sysfs.h b/drivers/gpu/drm/xe/xe_gt_throttle_sysfs.h
deleted file mode 100644
index 3ecfd4beffe1..000000000000
--- a/drivers/gpu/drm/xe/xe_gt_throttle_sysfs.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: MIT */
-/*
- * Copyright © 2023 Intel Corporation
- */
-
-#ifndef _XE_GT_THROTTLE_SYSFS_H_
-#define _XE_GT_THROTTLE_SYSFS_H_
-
-#include <drm/drm_managed.h>
-
-struct xe_gt;
-
-void xe_gt_throttle_sysfs_init(struct xe_gt *gt);
-
-#endif /* _XE_GT_THROTTLE_SYSFS_H_ */
-
--
2.43.0
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