From fd265d9e0c3358e6b9fe244d8f5d2824fda1c0dc Mon Sep 17 00:00:00 2001 From: Yunxiang Li Date: Thu, 19 Dec 2024 10:14:07 -0500 Subject: [PATCH 1314/5403] drm: add drm_memory_stats_is_zero MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20241219151411.1150-2-Yunxiang.Li@amd.com Signed-off-by: Christian König --- drivers/gpu/drm/drm_file.c | 10 ++++++++++ include/drm/drm_file.h | 1 + 2 files changed, 11 insertions(+) diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c index cb5f22f5bbb6..f10b6938c577 100644 --- a/drivers/gpu/drm/drm_file.c +++ b/drivers/gpu/drm/drm_file.c @@ -845,6 +845,16 @@ 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 diff --git a/include/drm/drm_file.h b/include/drm/drm_file.h index f0ef32e9fa5e..ef817926cddd 100644 --- a/include/drm/drm_file.h +++ b/include/drm/drm_file.h @@ -494,6 +494,7 @@ 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, -- 2.54.0