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Some platforms support using a doorbell to communicate. Export
this feature for other drivers to utilize as well.
Link: https://lore.kernel.org/linux-i2c/[email protected]/
Suggested-by: Jan Dabros <[email protected]>
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
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Some of the bits and fields used for mailboxes communicating with the
PSP are common across all mailbox implementations (SEV, TEE, etc).
Move these bits into the common `linux/psp.h` so they don't need to
be re-defined for each implementation.
Acked-by: Rijo Thomas <[email protected]>
Acked-by: Tom Lendacky <[email protected]>
Signed-off-by: Mario Limonciello <[email protected]>
Acked-by: Jarkko Nikula <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
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The TEE subdriver for CCP, the amdtee driver and the i2c-designware-amdpsp
drivers all include `psp-sev.h` even though they don't use SEV
functionality.
Move the definition of `__psp_pa` into a common header to be included
by all of these drivers.
Reviewed-by: Jan Dabros <[email protected]>
Acked-by: Jarkko Nikula <[email protected]> # For the drivers/i2c/busses/i2c-designware-amdpsp.c
Acked-by: Sumit Garg <[email protected]> # For TEE subsystem bits
Acked-by: Tom Lendacky <[email protected]>
Acked-by: Sean Christopherson <[email protected]> # KVM
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
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