RADEON_GEM_WAIT_IDLE is declared DRM_IOW but libdrm uses it with drmCommandWriteRead instead of drmCommandWrite which leads to the ioctl being unmatched and returning an error on at least OpenBSD.
Problem noticed by and patch from Mark Kettenis.
Signed-off-by: Jonathan Gray jsg@jsg.id.au --- radeon/radeon_bo_gem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git radeon/radeon_bo_gem.c radeon/radeon_bo_gem.c index fca0aaf..4ea405f 100644 --- radeon/radeon_bo_gem.c +++ radeon/radeon_bo_gem.c @@ -211,8 +211,8 @@ static int bo_wait(struct radeon_bo_int *boi) memset(&args, 0, sizeof(args)); args.handle = boi->handle; do { - ret = drmCommandWriteRead(boi->bom->fd, DRM_RADEON_GEM_WAIT_IDLE, - &args, sizeof(args)); + ret = drmCommandWrite(boi->bom->fd, DRM_RADEON_GEM_WAIT_IDLE, + &args, sizeof(args)); } while (ret == -EBUSY); return ret; }