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| author | Thierry Reding <treding@nvidia.com> | 2016-08-19 20:05:04 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2016-11-18 16:33:42 +0300 |
| commit | ca791d7f425635b63706e00896a141f85f7de463 (patch) | |
| tree | ebb76fa51c8e19d74fdb0e480032687203921f72 /drivers/firmware/tegra/Kconfig | |
| parent | d55865608fe0191935665acc6bb6d36bc8bb4b2e (diff) | |
| download | linux-ca791d7f425635b63706e00896a141f85f7de463.tar.xz | |
firmware: tegra: Add IVC library
The Inter-VM communication (IVC) is a communication protocol which is
designed for interprocessor communication (IPC) or the communication
between the hypervisor and the virtual machine with a guest OS.
Message channels are used to communicate between processors. They are
backed by DRAM or SRAM, so care must be taken to maintain coherence of
data.
The IVC library maintains memory-based descriptors for the transmission
and reception channels as well as the data coherence of the counter and
payload. Clients, such as the driver for the BPMP firmware, can use the
library to exchange messages with remote processors.
Based on work by Peter Newman <pnewman@nvidia.com> and Joseph Lo
<josephl@nvidia.com>.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/firmware/tegra/Kconfig')
| -rw-r--r-- | drivers/firmware/tegra/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/firmware/tegra/Kconfig b/drivers/firmware/tegra/Kconfig new file mode 100644 index 000000000000..1fa3e4e136a5 --- /dev/null +++ b/drivers/firmware/tegra/Kconfig @@ -0,0 +1,13 @@ +menu "Tegra firmware driver" + +config TEGRA_IVC + bool "Tegra IVC protocol" + depends on ARCH_TEGRA + help + IVC (Inter-VM Communication) protocol is part of the IPC + (Inter Processor Communication) framework on Tegra. It maintains the + data and the different commuication channels in SysRAM or RAM and + keeps the content is synchronization between host CPU and remote + processors. + +endmenu |