Commit 0fe88461 authored by Thierry Reding's avatar Thierry Reding

mailbox: Add Tegra HSP driver

This driver exposes a mailbox interface for interprocessor communication
using the Hardware Synchronization Primitives (HSP) module's doorbell
mechanism. There are multiple HSP instances and they provide additional
features such as shared mailboxes, shared and arbitrated semaphores.

A driver for a remote processor can use the mailbox client provided by
the HSP driver and build an IPC protocol on top of this synchronization

Based on work by Joseph Lo <>.
Acked-by: default avatarJassi Brar <>
Signed-off-by: default avatarThierry Reding <>
parent e9839402
......@@ -124,6 +124,15 @@ config MAILBOX_TEST
Test client to help with testing new Controller driver
bool "Tegra HSP (Hardware Synchronization Primitives) Driver"
depends on ARCH_TEGRA_186_SOC
The Tegra HSP driver is used for the interprocessor communication
between different remote processors and host processors on Tegra186
and later SoCs. Say Y here if you want to have this support.
If unsure say N.
tristate "APM SoC X-Gene SLIMpro Mailbox Controller"
depends on ARCH_XGENE
......@@ -29,3 +29,5 @@ obj-$(CONFIG_XGENE_SLIMPRO_MBOX) += mailbox-xgene-slimpro.o
obj-$(CONFIG_HI6220_MBOX) += hi6220-mailbox.o
obj-$(CONFIG_BCM_PDC_MBOX) += bcm-pdc-mailbox.o
obj-$(CONFIG_TEGRA_HSP_MBOX) += tegra-hsp.o
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