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drm: add drm_memory_stats_is_zero

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Add a helper to check if the memory stats is zero, this will be used to
check for memory accounting errors.

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241219151411.1150-2-Yunxiang.Li@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Yunxiang Li 2024-12-19 10:14:07 -05:00 • committed by Jianfeng Liu
parent 3d418acc44
commit 6b977939e0
2 changed files with 11 additions and 0 deletions
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10
drivers/gpu/drm/drm_file.c
View file

@ -887,6 +887,16 @@ static void print_size(struct drm_printer *p, const char *stat,
drm_printf(p, "drm-%s-%s:\t%llu%s\n", stat, region, sz, units[u]);
}
int drm_memory_stats_is_zero(const struct drm_memory_stats *stats)
{
return (stats->shared == 0 &&
stats->private == 0 &&
stats->resident == 0 &&
stats->purgeable == 0 &&
stats->active == 0);
}
EXPORT_SYMBOL(drm_memory_stats_is_zero);
/**
* drm_print_memory_stats - A helper to print memory stats
* @p: The printer to print output to

1
include/drm/drm_file.h
View file

@ -443,6 +443,7 @@ struct drm_memory_stats {
enum drm_gem_object_status;
int drm_memory_stats_is_zero(const struct drm_memory_stats *stats);
void drm_print_memory_stats(struct drm_printer *p,
const struct drm_memory_stats *stats,
enum drm_gem_object_status supported_status,