Hi, Alexandre:
On Mon, 2019-07-29 at 14:33 +0900, Alexandre Courbot wrote:
The default DMA segment size was used when importing PRIME buffers, which resulted in a chance of them not being contiguous in the virtual IO space of the device and mtk_gem_prime_import_sg_table() complaining that the SG table was not contiguous as it expects.
This series fixes this issue by
- Using the correct DMA device when importing PRIME buffers,
- Setting a more suitable DMA segment size on the DMA device than the
default 64KB.
For the series, applied to mediatek-drm-fixes-5.3 [1], thanks.
[1] https://github.com/ckhu-mediatek/linux.git-tags/commits/mediatek-drm-fixes-5...
Changes since v1:
- Split into two patches,
- Fixed an error path that would have returned 0.
Alexandre Courbot (2): drm/mediatek: use correct device to import PRIME buffers drm/mediatek: set DMA max segment size
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 49 ++++++++++++++++++++++++-- drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 ++ 2 files changed, 48 insertions(+), 3 deletions(-)