On Wed, Sep 04, 2019 at 01:56:42PM +0200, Thomas Zimmermann wrote: > The kmap and kunmap operations of GEM VRAM buffers can now be called > in interleaving pairs. The first call to drm_gem_vram_kmap() maps the > buffer's memory to kernel address space and the final call to > drm_gem_vram_kunmap() unmaps the memory. Intermediate calls to these > functions increment or decrement a reference counter. > > This change allows for keeping buffer memory mapped for longer and > minimizes the amount of changes to TLB, page tables, etc. > > Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx> > Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx> Reviewed-by: Gerd Hoffmann <kraxel@xxxxxxxxxx> _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
