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| author | Rob Clark <robdclark@chromium.org> | 2025-06-29 13:13:18 -0700 |
|---|---|---|
| committer | Rob Clark <robin.clark@oss.qualcomm.com> | 2025-07-04 17:48:38 -0700 |
| commit | 2e6a8a1fe2b262a6dfd0a65041fcd830ee1e7143 (patch) | |
| tree | ba40db3ea2c3502f6cb0b13e6d54005cca5d774a /drivers/gpu/drm/msm/msm_gem_submit.c | |
| parent | drm/msm: Split out map/unmap ops (diff) | |
| download | linux-2e6a8a1fe2b262a6dfd0a65041fcd830ee1e7143.tar.gz linux-2e6a8a1fe2b262a6dfd0a65041fcd830ee1e7143.zip | |
drm/msm: Add VM_BIND ioctl
Add a VM_BIND ioctl for binding/unbinding buffers into a VM. This is
only supported if userspace has opted in to MSM_PARAM_EN_VM_BIND.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Tested-by: Antonino Maniscalco <antomani103@gmail.com>
Reviewed-by: Antonino Maniscalco <antomani103@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/661524/
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem_submit.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 108f3372ba93..5f8e939a5906 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -194,6 +194,7 @@ out: static int submit_lookup_cmds(struct msm_gem_submit *submit, struct drm_msm_gem_submit *args, struct drm_file *file) { + struct msm_context *ctx = file->driver_priv; unsigned i; size_t sz; int ret = 0; @@ -225,6 +226,20 @@ static int submit_lookup_cmds(struct msm_gem_submit *submit, goto out; } + if (msm_context_is_vmbind(ctx)) { + if (submit_cmd.nr_relocs) { + ret = SUBMIT_ERROR(EINVAL, submit, "nr_relocs must be zero"); + goto out; + } + + if (submit_cmd.submit_idx || submit_cmd.submit_offset) { + ret = SUBMIT_ERROR(EINVAL, submit, "submit_idx/offset must be zero"); + goto out; + } + + submit->cmd[i].iova = submit_cmd.iova; + } + submit->cmd[i].type = submit_cmd.type; submit->cmd[i].size = submit_cmd.size / 4; submit->cmd[i].offset = submit_cmd.submit_offset / 4; @@ -537,6 +552,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, struct msm_syncobj_post_dep *post_deps = NULL; struct drm_syncobj **syncobjs_to_reset = NULL; struct sync_file *sync_file = NULL; + unsigned cmds_to_parse; int out_fence_fd = -1; unsigned i; int ret; @@ -661,7 +677,9 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, if (ret) goto out; - for (i = 0; i < args->nr_cmds; i++) { + cmds_to_parse = msm_context_is_vmbind(ctx) ? 0 : args->nr_cmds; + + for (i = 0; i < cmds_to_parse; i++) { struct drm_gem_object *obj; uint64_t iova; @@ -692,7 +710,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, goto out; } - submit->nr_cmds = i; + submit->nr_cmds = args->nr_cmds; idr_preload(GFP_KERNEL); |