From: Thierry Reding treding@nvidia.com
Add helpers to export and import buffer objects via flink names.
Signed-off-by: Thierry Reding treding@nvidia.com --- Changes in v3: - add drm_public annotations --- tegra/tegra-symbols.txt | 2 ++ tegra/tegra.c | 50 +++++++++++++++++++++++++++++++++++++++++ tegra/tegra.h | 3 +++ 3 files changed, 55 insertions(+)
diff --git a/tegra/tegra-symbols.txt b/tegra/tegra-symbols.txt index 9422696c1416..630e075fa5d7 100644 --- a/tegra/tegra-symbols.txt +++ b/tegra/tegra-symbols.txt @@ -1,6 +1,8 @@ drm_tegra_bo_get_handle +drm_tegra_bo_get_name drm_tegra_bo_map drm_tegra_bo_new +drm_tegra_bo_open drm_tegra_bo_ref drm_tegra_bo_unmap drm_tegra_bo_unref diff --git a/tegra/tegra.c b/tegra/tegra.c index 5225ad052fb3..5eb8518104ef 100644 --- a/tegra/tegra.c +++ b/tegra/tegra.c @@ -244,3 +244,53 @@ drm_public int drm_tegra_bo_unmap(struct drm_tegra_bo *bo)
return 0; } + +drm_public int drm_tegra_bo_get_name(struct drm_tegra_bo *bo, uint32_t *name) +{ + struct drm_tegra *drm = bo->drm; + struct drm_gem_flink args; + int err; + + memset(&args, 0, sizeof(args)); + args.handle = bo->handle; + + err = drmIoctl(drm->fd, DRM_IOCTL_GEM_FLINK, &args); + if (err < 0) + return err; + + if (name) + *name = args.name; + + return 0; +} + +drm_public int +drm_tegra_bo_open(struct drm_tegra *drm, uint32_t name, uint32_t flags, + struct drm_tegra_bo **bop) +{ + struct drm_gem_open args; + struct drm_tegra_bo *bo; + int err; + + bo = drm_tegra_bo_alloc(drm, 0, flags, 0); + if (!bo) + return -ENOMEM; + + memset(&args, 0, sizeof(args)); + args.name = name; + + err = drmIoctl(drm->fd, DRM_IOCTL_GEM_OPEN, &args); + if (err < 0) + goto free; + + bo->handle = args.handle; + bo->size = args.size; + + *bop = bo; + + return 0; + +free: + free(bo); + return err; +} diff --git a/tegra/tegra.h b/tegra/tegra.h index c6b4f984de45..333690f23118 100644 --- a/tegra/tegra.h +++ b/tegra/tegra.h @@ -44,5 +44,8 @@ int drm_tegra_bo_get_handle(struct drm_tegra_bo *bo, uint32_t *handle); int drm_tegra_bo_map(struct drm_tegra_bo *bo, void **ptr); int drm_tegra_bo_unmap(struct drm_tegra_bo *bo);
+int drm_tegra_bo_get_name(struct drm_tegra_bo *bo, uint32_t *name); +int drm_tegra_bo_open(struct drm_tegra *drm, uint32_t name, uint32_t flags, + struct drm_tegra_bo **bop);
#endif /* __DRM_TEGRA_H__ */