3 Commits

Author	SHA1	Message	Date
Sven Peter	5acf07ff25	soc: apple: rtkit: Stop casting function pointer signatures ... Fixes: 9bd1d9a0d8bb ("soc: apple: Add RTKit IPC library") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Sven Peter <sven@svenpeter.dev> Signed-off-by: Hector Martin <marcan@marcan.st>	2022-11-28 20:34:09 +09:00
Hector Martin	f5a5e83379	soc: apple: rtkit: Add apple_rtkit_poll ... This allows a client to receive messages in atomic context, by polling. Signed-off-by: Hector Martin <marcan@marcan.st> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Sven Peter <sven@svenpeter.dev> Reviewed-by: Eric Curtin <ecurtin@redhat.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>	2022-09-17 19:53:29 +02:00
Sven Peter	9bd1d9a0d8	soc: apple: Add RTKit IPC library ... Apple SoCs such as the M1 come with multiple embedded co-processors running proprietary firmware. Communication with those is established over a simple mailbox using the RTKit IPC protocol. This cannot be implemented inside the mailbox subsystem since on top of communication over channels we also need support for starting, hibernating and resetting these co-processors. We also need to handle shared memory allocations differently depending on the co-processor and don't want to split that across multiple drivers. Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sven Peter <sven@svenpeter.dev>	2022-05-01 16:55:06 +02:00