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The main and only new addition this time around is the support for unidirectional mailbox channels. SCMI communicates between the agent and the platform using one bidirectional 'a2p' channel used by the agent to send SCMI commands and synchronously receive the related replies, and an optional 'p2a' unidirectional channel used to asynchronously receive delayed responses and notifications emitted from the platform. In order to support platforms that support only unidirectional mailbox hardware channels, the existing bindings are extended to support the same. Both bidirectional and unidirectional channels support for the SCMI mailbox can coexist. The correct and effective combination of defined 'mboxes' and 'shmem' descriptors determines the type of the mailbox channel. This also contains a fix for the transfers allocation on Rx channel especially when the base protocol doesn't use Rx channel while some of the protocols can have dedicated Rx channels. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEunHlEgbzHrJD3ZPhAEG6vDF+4pgFAmQ9QqkACgkQAEG6vDF+ 4piUTxAAoScfTHbLJXvPIYiWwtDAn2huYZulwEgyP7IkllcF6s1DO2vFpUnYDg82 Ew+j+mAfylN5NvXIDI73kfltQJWL0+CKHEtIG3UTeqn9SDJOLDC2P6+HGAoRftdz n77ctYyKGL8vgL9gjPh/SVTs74hHbiMLOx7RJJ4udjptEpqT7DriGQneMN8J4F4u utgnJiV/21kqDLw1TUA/Z0pJCDXepMHeg6hBZfBw3bW59MN4rlkMk9bUqF2qk8Q3 vq4stuHZ/USv6Gpv3NLuN3By/+fSJtYrTSTP8jN4NUzjS+trko8CjyPZ19gvUXM8 dPuQyjyQ5eCWczDLy1mXZWG5ZVDbI1QLcGw70b5fro6/TBiky1zx63khrCTPSVIo oy1YajZE4HPmn53AtZ53Ef6fAvlJg35GAXMTd17dvfu0pGTI8qpLPDuEBNVZELbV YpMxm4Xk/yfM8p33Vyq7kYrzesHAfXbdkfFWAWchnpwsqW7YxFYiW9ysOM5zeFTa KiOyGFD1B6IeiLAMGfnShPkl1RsOY0yiD4KvUFUvoT0WVj0kNMNUK5jJv/g92SHG 6D4/25ko1Hb4y+W3lwLceY5G7dnxGxh+SXOnEna+vidwcnz10EcvO/u3/S/ufaBq xQs43loaN72vivzF4cMpJXpVfXWux3Wr6llosQ5ybJSMflEdq+0= =8/Bb -----END PGP SIGNATURE----- gpgsig -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEiK/NIGsWEZVxh/FrYKtH/8kJUicFAmQ9aAIACgkQYKtH/8kJ UifrxA/9HZmzS1B5G0hR8JkENHNrCb6eNfygQo0Xbyrz0240k1cM5GK3APo/oDM8 RDTIcjh0o2nm4WJ9xvd0SmNQw9+EsrKi19weWVwoXKfYkniKPA+ULArJDXqy7rVT +m6s4tOJT2KaWVHZUDhSWRjeWIdv8olhXPxrcVvBpXEBRBrt4bO2UZLvJPXxkiSw r8Fih3Wo0QVCOBvxL6PMAQ1IKjqDdQCc1YqnQ+8kOSSfIeE0mVVtxhGAk21Ss8OU GCDJ4bSnReENi0KtKTBFTImfF6S2hxAHCTG8KZaR123I3csslRQHhVp+RnVqO61T buoFdqmN8Rf9/3pHdzw1rc7+LKX22YFn1n5kKGt1yRXgusJw4hw+EYadSSw0K7g+ kFplZqfb84Ps5+43xHZZ8jbc5Ifch/xQs2S3X0ysvqgBrZTZbwsEqn/yLOT6TL1/ g5ykA8lzApBMbk5y/6B7bXUcLtpt60HwXIzFHk0rxmhE9smcjntZ8MvrcbkZjPAY 136L42P2zn3eBd8kKDzUOU1Q/+YGuwpOQ51ZjEGCOcw8+XanDjUAxCec30L2qThx hGrkRY1d2at0pK+xOIQwL/mnyJ52nRzaGXlDBaANhPO/ITAVxgTAPp3MYc6k1hz1 WRG+t1JE2TChm5t881yUhex87w1pL4MgficgPq1BChExk3fJAPM= =maaU -----END PGP SIGNATURE----- Merge tag 'scmi-updates-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers Arm SCMI updates for v6.4 The main and only new addition this time around is the support for unidirectional mailbox channels. SCMI communicates between the agent and the platform using one bidirectional 'a2p' channel used by the agent to send SCMI commands and synchronously receive the related replies, and an optional 'p2a' unidirectional channel used to asynchronously receive delayed responses and notifications emitted from the platform. In order to support platforms that support only unidirectional mailbox hardware channels, the existing bindings are extended to support the same. Both bidirectional and unidirectional channels support for the SCMI mailbox can coexist. The correct and effective combination of defined 'mboxes' and 'shmem' descriptors determines the type of the mailbox channel. This also contains a fix for the transfers allocation on Rx channel especially when the base protocol doesn't use Rx channel while some of the protocols can have dedicated Rx channels. * tag 'scmi-updates-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: firmware: arm_scmi: Add support for unidirectional mailbox channels dt-bindings: firmware: arm,scmi: Support mailboxes unidirectional channels firmware: arm_scmi: Fix xfers allocation on Rx channel firmware: arm_scmi: Use the bitmap API to allocate bitmaps firmware: arm_scmi: Fix device node validation for mailbox transport firmware: arm_scmi: Fix raw coexistence mode behaviour on failure path firmware: arm_scmi: Remove duplicate include header inclusion firmware: arm_scmi: Return a literal instead of a variable firmware: arm_scmi: Clean up a return statement in scmi_probe Link: https://lore.kernel.org/r/20230417145743.1904318-1-sudeep.holla@arm.com Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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|---|---|---|
| .. | ||
| base.c | ||
| bus.c | ||
| clock.c | ||
| common.h | ||
| driver.c | ||
| Kconfig | ||
| mailbox.c | ||
| Makefile | ||
| msg.c | ||
| notify.c | ||
| notify.h | ||
| optee.c | ||
| perf.c | ||
| power.c | ||
| powercap.c | ||
| protocols.h | ||
| raw_mode.c | ||
| raw_mode.h | ||
| reset.c | ||
| scmi_pm_domain.c | ||
| scmi_power_control.c | ||
| sensors.c | ||
| shmem.c | ||
| smc.c | ||
| system.c | ||
| virtio.c | ||
| voltage.c | ||