diff options
| author | Rob Clark <robdclark@gmail.com> | 2018-10-23 14:42:37 -0400 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2018-12-11 13:07:04 -0500 |
| commit | 7a93d5c38e5ee68376ca88d9e3f9841451b9efb1 (patch) | |
| tree | dec195a4e38bb5466523f89219a98814a714fd74 /drivers/gpu/drm/msm/msm_gem_submit.c | |
| parent | 1df4289d5b23178a8a2c38ca766feb3d9c40d9fb (diff) | |
drm/msm/gpu: add submit flag to hint which buffers should be dumped
To lower CPU overhead, future userspace will be switching to pinning
iova and avoiding the use of relocs, and only include cmds table entries
for IB1 level cmdstream (but not IB2 or state-groups).
This leaves the kernel unsure what to dump for rd/hangrd cmdstream
dumping. So add a MSM_SUBMIT_BO_DUMP flag so userspace can indicate
buffers that contain cmdstream (or are otherwise important to dump).
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem_submit.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index a43e91e70bd9..3cbed4acb0f4 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -114,8 +114,11 @@ static int submit_lookup_objects(struct msm_gem_submit *submit, pagefault_disable(); } +/* at least one of READ and/or WRITE flags should be set: */ +#define MANDATORY_FLAGS (MSM_SUBMIT_BO_READ | MSM_SUBMIT_BO_WRITE) + if ((submit_bo.flags & ~MSM_SUBMIT_BO_FLAGS) || - !(submit_bo.flags & MSM_SUBMIT_BO_FLAGS)) { + !(submit_bo.flags & MANDATORY_FLAGS)) { DRM_ERROR("invalid flags: %x\n", submit_bo.flags); ret = -EINVAL; goto out_unlock; |