radeonsi: SDMA v4 size field is size - 1
After cross-checking with kernel and the old buffer copy code, it seems
that the size field should be size - 1 instead.
Fixes: 46c95047bd7 ("radeonsi: implement si_sdma_copy_image for gfx7+")
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21585>
(cherry picked from commit 4f50497a96808e08243a38ff34e78a2186168425)
2 files changed
