drm/hisilicon/hibmc: Export VRAM MM information to debugfs

This change makes information about VRAM consumption available on
debugfs. See

  /sys/kernel/debug/dri/0/vram-mm

for an overview of how VRAM is being used.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191203083819.6643-6-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
index 113d27b..11d1b07 100644 (file)
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -55,6 +55,7 @@ static struct drm_driver hibmc_driver = {
        .desc                   = "hibmc drm driver",
        .major                  = 1,
        .minor                  = 0,
+       .debugfs_init           = drm_vram_mm_debugfs_init,
        .dumb_create            = hibmc_dumb_create,
        .dumb_map_offset        = drm_gem_vram_driver_dumb_mmap_offset,
        .gem_prime_mmap         = drm_gem_prime_mmap,