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drm/xe/uapi: restrict system wide accounting
Since this is considered an info leak (system wide accounting), rather hide behind perfmon_capable(). v2: - Without perfmon_capable() it likely makes more sense to report as zero, instead of reporting as used == total size. This should give similar behaviour as i915 which rather tracks free instead of used. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Filip Hazubski <filip.hazubski@intel.com> Cc: Carl Zhang <carl.zhang@intel.com> Cc: Effie Yu <effie.yu@intel.com> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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1 changed files with 9 additions and 3 deletions
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@ -128,7 +128,8 @@ static int query_memory_usage(struct xe_device *xe,
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usage->regions[0].min_page_size = PAGE_SIZE;
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usage->regions[0].max_page_size = PAGE_SIZE;
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usage->regions[0].total_size = man->size << PAGE_SHIFT;
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usage->regions[0].used = ttm_resource_manager_usage(man);
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if (perfmon_capable())
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usage->regions[0].used = ttm_resource_manager_usage(man);
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usage->num_regions = 1;
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for (i = XE_PL_VRAM0; i <= XE_PL_VRAM1; ++i) {
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@ -145,8 +146,13 @@ static int query_memory_usage(struct xe_device *xe,
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SZ_1G;
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usage->regions[usage->num_regions].total_size =
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man->size;
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usage->regions[usage->num_regions++].used =
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ttm_resource_manager_usage(man);
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if (perfmon_capable()) {
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usage->regions[usage->num_regions].used =
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ttm_resource_manager_usage(man);
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}
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usage->num_regions++;
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}
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}
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