On Wed, Jan 02, 2013 at 06:37:23PM -0500, Alex Deucher wrote: > From: Alex Deucher <alexander.deuc...@amd.com> > Date: Wed, 2 Jan 2013 18:30:21 -0500 > Subject: [PATCH] drm/radeon/r6xx: fix DMA engine for ttm bo transfers > > count must be a multiple of 2. > > Cc: Borislav Petkov <b...@alien8.de> > Cc: Markus Trippelsdorf <mar...@trippelsdorf.de> > Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Thanks, will run it on the box in question next week when I have access. Btw, you could add the note about count needing to be a multiple of 2 as a comment in the code below, for future reference. > --- > drivers/gpu/drm/radeon/r600.c | 4 ++-- > 1 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c > index 2aaf147..9f4ce5e 100644 > --- a/drivers/gpu/drm/radeon/r600.c > +++ b/drivers/gpu/drm/radeon/r600.c > @@ -2636,8 +2636,8 @@ int r600_copy_dma(struct radeon_device *rdev, > > for (i = 0; i < num_loops; i++) { > cur_size_in_dw = size_in_dw; > - if (cur_size_in_dw > 0xFFFF) > - cur_size_in_dw = 0xFFFF; > + if (cur_size_in_dw > 0xFFFE) > + cur_size_in_dw = 0xFFFE; > size_in_dw -= cur_size_in_dw; > radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, 0, > cur_size_in_dw)); > radeon_ring_write(ring, dst_offset & 0xfffffffc); > -- > 1.7.7.5 -- Regards/Gruss, Boris. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/