shmem helpers seem a bit sloppy here by automatically rounding up when actually creating the buffer, which results in under-reporting of what we actually have. Caught by igt/vgem_basic tests.
Signed-off-by: Daniel Vetter daniel.vetter@intel.com --- drivers/gpu/drm/drm_gem_shmem_helper.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index 6d625cee7a6a..d5e6d4568f99 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -505,13 +505,13 @@ int drm_gem_shmem_dumb_create(struct drm_file *file, struct drm_device *dev,
if (!args->pitch || !args->size) { args->pitch = min_pitch; - args->size = args->pitch * args->height; + args->size = PAGE_ALIGN(args->pitch * args->height); } else { /* ensure sane minimum values */ if (args->pitch < min_pitch) args->pitch = min_pitch; if (args->size < args->pitch * args->height) - args->size = args->pitch * args->height; + args->size = PAGE_ALIGN(args->pitch * args->height); }
shmem = drm_gem_shmem_create_with_handle(file, dev, args->size, &args->handle);