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After software has authenticated a dynamic boost control request,
it can fetch and set supported parameters using a selection of messages.
Add support for these messages and export the ability to do this to
userspace.
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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As part of the authentication flow for Dynamic Boost Control, the calling
software will need to send a uid used in all of its future
communications.
Add support for another IOCTL call to let userspace software set this up.
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Dynamic Boost Control is a feature offered on AMD client platforms that
allows software to request and set power or frequency limits.
Only software that has authenticated with the PSP can retrieve or set
these limits.
Create a character device and ioctl for fetching the nonce. This ioctl
supports optionally passing authentication information which will influence
how many calls the nonce is valid for.
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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