diff options
| author | Ilan Aelion <iaelion@nvidia.com> | 2012-06-27 18:58:11 -0600 |
|---|---|---|
| committer | Lokesh Pathak <lpathak@nvidia.com> | 2012-07-30 08:37:00 -0700 |
| commit | e402db9b3737209c9981aea5970328d7c1cb06ce (patch) | |
| tree | 245efed1639bfb099649c6d81263ea1a7e752cd9 /include | |
| parent | 8055acfa05c82997bdcfbce5093b9cd963251d2a (diff) | |
misc: tegra-throughput: adding throughput dev node
Creates a miscdev at /dev/tegra-throughput which gl will use to set a
target frame rate. In addition it receives notifications from dc on
flip events. On each notification the percentage ratio of the actual
frame time to the target frame time is calculated. In subsequent
changes this ratio will be reported to other modules as a throughput
hint.
Bug 991589
Change-Id: Ieaa2b2755b63d2d071de31e3ef819d4c3b51a956
Signed-off-by: Ilan Aelion <iaelion@nvidia.com>
Reviewed-on: http://git-master/r/116865
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/throughput_ioctl.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/throughput_ioctl.h b/include/linux/throughput_ioctl.h new file mode 100644 index 000000000000..96e57399b2e9 --- /dev/null +++ b/include/linux/throughput_ioctl.h @@ -0,0 +1,39 @@ +/* + * include/linux/throughput_ioctl.h + * + * ioctl declarations for throughput miscdev + * + * Copyright (c) 2012, NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __TEGRA_THROUGHPUT_IOCTL_H +#define __TEGRA_THROUGHPUT_IOCTL_H + +#include <linux/ioctl.h> + +#define TEGRA_THROUGHPUT_MAGIC 'g' + +struct tegra_throughput_target_fps_args { + __u32 target_fps; +}; + +#define TEGRA_THROUGHPUT_IOCTL_TARGET_FPS \ + _IOW(TEGRA_THROUGHPUT_MAGIC, 1, struct tegra_throughput_target_fps_args) +#define TEGRA_THROUGHPUT_IOCTL_MAXNR \ + (_IOC_NR(TEGRA_THROUGHPUT_IOCTL_TARGET_FPS)) + +#endif /* !defined(__TEGRA_THROUGHPUT_IOCTL_H) */ + |