drm/xe: Make read_perf_limit_reasons globally accessible

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).
v4: Correct #include while renaming header file (review feedback
from Lucas).

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240518043700.3264362-2-John.C.Harrison@Intel.com
This commit is contained in:
John Harrison 2024-05-17 21:36:58 -07:00
parent 83ee002df0
commit fcc8f80517
5 changed files with 33 additions and 29 deletions

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@ -89,7 +89,7 @@ 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 \

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@ -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"
@ -245,5 +245,5 @@ int xe_gt_freq_init(struct xe_gt *gt)
if (err)
return err;
return xe_gt_throttle_sysfs_init(gt);
return xe_gt_throttle_init(gt);
}

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@ -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(void *arg)
sysfs_remove_group(gt->freq, &throttle_group_attrs);
}
int xe_gt_throttle_sysfs_init(struct xe_gt *gt)
int xe_gt_throttle_init(struct xe_gt *gt)
{
struct xe_device *xe = gt_to_xe(gt);
int err;

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@ -0,0 +1,17 @@
/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2023 Intel Corporation
*/
#ifndef _XE_GT_THROTTLE_H_
#define _XE_GT_THROTTLE_H_
#include <linux/types.h>
struct xe_gt;
int xe_gt_throttle_init(struct xe_gt *gt);
u32 xe_gt_throttle_get_limit_reasons(struct xe_gt *gt);
#endif /* _XE_GT_THROTTLE_H_ */

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@ -1,13 +0,0 @@
/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2023 Intel Corporation
*/
#ifndef _XE_GT_THROTTLE_SYSFS_H_
#define _XE_GT_THROTTLE_SYSFS_H_
struct xe_gt;
int xe_gt_throttle_sysfs_init(struct xe_gt *gt);
#endif