diff options
| author | Dan Willemsen <dwillemsen@nvidia.com> | 2010-08-11 10:55:17 +0300 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-01-25 15:26:37 -0800 |
| commit | c2aece97469747851ab911591b549721a37c194f (patch) | |
| tree | 782621673fddd6a66ff7c3def52dc3a4c145abcc /arch/arm/mach-tegra/include | |
| parent | f32916a170d98f56172ab2896b290a4fa955d1ef (diff) | |
nvhost: Reimplement null kickoff functionality.
For each channel submit where null kickoff is requested, we don't
place the user's commands in the pushbuffer. All necessary context
switches, syncpoint increments and waitbase increments do happen
though.
Update: Add NULL_KICKOFF ioctl to use instead of FLIP, this prevents
kernel ABI breakage.
Bug 717235
Previous Id: I51c323729ea57993a5b52fb395ab90cb8608ee6b
Previously Reviewed: http://git-master/r/5091
Change-Id: I4f92db457aff6e1c3a8d454255c4b051c4663360
Reviewed-on: http://git-master/r/15882
Reviewed-by: Daniel Willemsen <dwillemsen@nvidia.com>
Tested-by: Daniel Willemsen <dwillemsen@nvidia.com>
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/include')
| -rw-r--r-- | arch/arm/mach-tegra/include/mach/nvhost.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/include/mach/nvhost.h b/arch/arm/mach-tegra/include/mach/nvhost.h index c72666ae0d37..fc0336a42b50 100644 --- a/arch/arm/mach-tegra/include/mach/nvhost.h +++ b/arch/arm/mach-tegra/include/mach/nvhost.h @@ -114,8 +114,10 @@ struct nvhost_set_nvmap_fd_args { _IOR(NVHOST_IOCTL_MAGIC, 4, struct nvhost_get_param_args) #define NVHOST_IOCTL_CHANNEL_SET_NVMAP_FD \ _IOW(NVHOST_IOCTL_MAGIC, 5, struct nvhost_set_nvmap_fd_args) +#define NVHOST_IOCTL_CHANNEL_NULL_KICKOFF \ + _IOR(NVHOST_IOCTL_MAGIC, 6, struct nvhost_get_param_args) #define NVHOST_IOCTL_CHANNEL_LAST \ - _IOC_NR(NVHOST_IOCTL_CHANNEL_SET_NVMAP_FD) + _IOC_NR(NVHOST_IOCTL_CHANNEL_NULL_KICKOFF) #define NVHOST_IOCTL_CHANNEL_MAX_ARG_SIZE sizeof(struct nvhost_get_param_args) struct nvhost_ctrl_syncpt_read_args { |