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authorJordan Crouse <jcrouse@codeaurora.org>2018-10-15 15:31:54 -0600
committerSean Paul <seanpaul@chromium.org>2018-12-03 08:46:13 -0500
commitd52900437e95e2799953af21971a54fe5f8e33ff (patch)
tree320db0e824a7291bcc31a980f791379647848a7b /drivers
parentee4456359640defe3f51cc6b728bfce4bc444c9e (diff)
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/msm/msm_gem_submit.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 7a7923e6220d..66673ea9bf6f 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -317,6 +317,9 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob
uint32_t *ptr;
int ret = 0;
+ if (!nr_relocs)
+ return 0;
+
if (offset % 4) {
DRM_ERROR("non-aligned cmdstream buffer: %u\n", offset);
return -EINVAL;