drm/msm/gpu: Don't map command buffers with nr_relocs equal to 0
If a command buffer doesn't have any relocs assigned to it there then is no need to map it in the kernel address space. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org>
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@ -317,6 +317,9 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob
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uint32_t *ptr;
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int ret = 0;
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if (!nr_relocs)
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return 0;
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if (offset % 4) {
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DRM_ERROR("non-aligned cmdstream buffer: %u\n", offset);
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return -EINVAL;
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