From: Sushmita Susheelendra <ssusheel@xxxxxxxxxxxxxx> Map command buffers to the kernel address space only if relocs are specified for the submission. This reduces some overhead on the submission path. Signed-off-by: Sushmita Susheelendra <ssusheel@xxxxxxxxxxxxxx> Signed-off-by: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx> --- drivers/gpu/drm/msm/msm_gem_submit.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 2708d3a..2d2aa65 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -320,6 +320,9 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob return -EINVAL; } + if (nr_relocs == 0) + return 0; + /* For now, just map the entire thing. Eventually we probably * to do it page-by-page, w/ kmap() if not vmap()d.. */ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
