A first version of this work had been sent by Tomi Valkeinen in may 2017 (https://www.spinics.net/lists/dri-devel/msg140663.html).
This series adds a few new OMAP_BO flags to help the userspace manage situations where it needs to use lots of buffers, and would currently run out of TILER space. The TILER space is limited to mapping 128MB at any given time and some applications might need more.
This seres is also the opportunity to do some cleanup in the flags and improve the comments describing them.
The user-space patches for libdrm, although ready, haven't been posted yet. It will be be done when this series have been discussed and hopefully in the process of getting merged.
JJ
changes in v4: - fixed incremental build issue introduced by patch #1 and later fixed by patch #2. - Added my reviewed-by to Tomis's patch
changes in v3: - rebase on top of v5.4-rc2 - Document omap_gem_new() and the new flags using the kernel-doc format
changes in v2: - fixed build error that crept in during rebase before sending (sorry about that) - rework the refcount part a bit.
Jean-Jacques Hiblot (1): drm/omap: use refcount API to track the number of users of dma_addr
Tomi Valkeinen (7): drm/omap: add omap_gem_unpin_locked() drm/omap: accept NULL for dma_addr in omap_gem_pin drm/omap: cleanup OMAP_BO flags drm/omap: remove OMAP_BO_TILED define drm/omap: cleanup OMAP_BO_SCANOUT use drm/omap: add omap_gem_validate_flags() drm/omap: add OMAP_BO flags to affect buffer allocation
drivers/gpu/drm/omapdrm/omap_dmm_tiler.h | 2 +- drivers/gpu/drm/omapdrm/omap_fb.c | 6 +- drivers/gpu/drm/omapdrm/omap_gem.c | 191 ++++++++++++++++------ drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | 2 +- include/uapi/drm/omap_drm.h | 27 ++- 5 files changed, 164 insertions(+), 64 deletions(-)