drm/vram: add vram-mm debugfs file

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Wire up drm_mm_print() for vram helpers, using a new
debugfs file, so one can see how vram is used:

   # cat /sys/kernel/debug/dri/0/vram-mm
   0x0000000000000000-0x0000000000000300: 768: used
   0x0000000000000300-0x0000000000000600: 768: used
   0x0000000000000600-0x0000000000000900: 768: used
   0x0000000000000900-0x0000000000000c00: 768: used
   0x0000000000000c00-0x0000000000004000: 13312: free
   total: 16384, used 3072 free 13312

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190904054740.20817-5-kraxel@redhat.com

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This commit is contained in:

Gerd Hoffmann 2019-09-04 07:47:37 +02:00

parent 527f6d91f8

commit 9286766ba6

3 changed files with 46 additions and 0 deletions

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44

drivers/gpu/drm/drm_vram_mm_helper.c

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1

include/drm/drm_gem_vram_helper.h

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1

include/drm/drm_vram_mm_helper.h

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