diff options
Diffstat (limited to 'intel')
| -rw-r--r-- | intel/intel_bufmgr_gem.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c index f98f7a72..278f5c87 100644 --- a/intel/intel_bufmgr_gem.c +++ b/intel/intel_bufmgr_gem.c @@ -2452,7 +2452,17 @@ drm_intel_bo_gem_create_from_prime(drm_intel_bufmgr *bufmgr, int prime_fd, int s if (!bo_gem) return NULL; - bo_gem->bo.size = size; + /* Determine size of bo. The fd-to-handle ioctl really should + * return the size, but it doesn't. If we have kernel 3.12 or + * later, we can lseek on the prime fd to get the size. Older + * kernels will just fail, in which case we fall back to the + * provided (estimated or guess size). */ + ret = lseek(prime_fd, 0, SEEK_END); + if (ret != -1) + bo_gem->bo.size = ret; + else + bo_gem->bo.size = size; + bo_gem->bo.handle = handle; bo_gem->bo.bufmgr = bufmgr; |