drm/gem-vram: Support pinning buffers to current location

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Pinning a buffer prevents it from being moved to a different memory
location. For some operations, such as buffer updates, it is not
important where the buffer is located. Setting the pin function's
pl_flag argument to 0 will pin the buffer to whereever it is stored.

v2:
	* document pin flags in PRIME pin helper

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613073041.29350-2-tzimmermann@suse.de

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Thomas Zimmermann 2019-06-13 09:30:33 +02:00

parent bb5ce9a017

commit a6c3464f69

1 changed files with 16 additions and 4 deletions

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drivers/gpu/drm/drm_gem_vram_helper.c

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