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cd5bbb2532
User space can get the EU stall data record size, EU stall capabilities,
EU stall sampling rates, and per XeCore buffer size with query IOCTL
DRM_IOCTL_XE_DEVICE_QUERY with .query set to DRM_XE_DEVICE_QUERY_EU_STALL.
A struct drm_xe_query_eu_stall will be returned to the user space along
with an array of supported sampling rates sorted in the fastest sampling
rate first order. sampling_rates in struct drm_xe_query_eu_stall will
point to the array of sampling rates.
Any capabilities in EU stall sampling as of this patch are considered
as base capabilities. New capability bits will be added for any new
functionality added later.
v12: Rename has_eu_stall_sampling_support() to
xe_eu_stall_supported_on_platform() and move it to header file.
v11: Check if EU stall sampling is supported on the platform.
v10: Change comments and variable names as per feedback
v9: Move reserved fields above num_sampling_rates in
struct drm_xe_query_eu_stall.
v7: Change sampling_rates from a pointer to flexible array.
v6: Include EU stall sampling rates information and
per XeCore buffer size in the query information.
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/67ba42796a5a99d648239c315694cd222812a49b.1740533885.git.harish.chegondi@intel.com
25 lines
635 B
C
25 lines
635 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2025 Intel Corporation
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*/
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#ifndef __XE_EU_STALL_H__
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#define __XE_EU_STALL_H__
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#include "xe_gt_types.h"
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size_t xe_eu_stall_get_per_xecore_buf_size(void);
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size_t xe_eu_stall_data_record_size(struct xe_device *xe);
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size_t xe_eu_stall_get_sampling_rates(u32 *num_rates, const u64 **rates);
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int xe_eu_stall_init(struct xe_gt *gt);
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int xe_eu_stall_stream_open(struct drm_device *dev,
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u64 data,
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struct drm_file *file);
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static inline bool xe_eu_stall_supported_on_platform(struct xe_device *xe)
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{
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return xe->info.platform == XE_PVC || GRAPHICS_VER(xe) >= 20;
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}
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#endif
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