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authorAlexey Kardashevskiy <aik@amd.com>2026-05-21 17:43:01 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2026-05-29 14:05:29 +0800
commit50e506201bab875545c7a9443bd7e1c71804e553 (patch)
tree7af93738dd56b34b8fb30e188ebba3dff6e287c3 /include/linux
parent90fe909ed6956a8bcc627cbefe6e225ad4cbcd4b (diff)
crypto: ccp/tsm - Enable the root port after the endpoint
The PCIe r7.0, chapter "6.33.8 Other IDE Rules" mandates if selective IDE is enabled for config requersts, a stream must be enabled on the endpoint before enabling it on the rootport: === For Selective IDE, the Stream must not be used until it has been enabled in both Partner Ports. For cases where one of the Partner Ports is a Root Port and Selective IDE for Configuration Requests is enabled, the other Partner Port must be enabled prior to the Root Port. For other scenarios, the mechanisms to satisfy this requirement are implementation-specific. === Do what the spec says. Fixes: 4be423572da1 ("crypto/ccp: Implement SEV-TIO PCIe IDE (phase1)") Signed-off-by: Alexey Kardashevskiy <aik@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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