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From: Alexey Kardashevskiy <aik@amd.com>
To: <linux-pci@vger.kernel.org>
CC: <linux-kernel@vger.kernel.org>, Bjorn Helgaas <bhelgaas@google.com>,
Jonathan Cameron <jonathan.cameron@huawei.com>, Lukas Wunner
<lukas@wunner.de>, Alexey Kardashevskiy <aik@amd.com>
Subject: [PATCH kernel 3/4] pci: Define TEE-IO bit in PCIe device capabilities
Date: Thu, 1 Feb 2024 17:02:27 +1100
Message-ID: <20240201060228.3070928-4-aik@amd.com>
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pci/doe/ide: Capabilities, protocols
|
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Commit Message
Alexey Kardashevskiy
Feb. 1, 2024, 6:02 a.m. UTC
A new bit #30 from the PCI Express Device Capabilities Register is defined
in PCIe 6.1 as "TEE Device Interface Security Protocol (TDISP)".
Define the macro.
Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
---
include/uapi/linux/pci_regs.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index b9c681f14181..e60b4df1f7d9 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -498,6 +498,7 @@ #define PCI_EXP_DEVCAP_PWR_VAL 0x03fc0000 /* Slot Power Limit Value */ #define PCI_EXP_DEVCAP_PWR_SCL 0x0c000000 /* Slot Power Limit Scale */ #define PCI_EXP_DEVCAP_FLR 0x10000000 /* Function Level Reset */ +#define PCI_EXP_DEVCAP_TEE_IO 0x40000000 /* TEE-IO Supported (TDISP) */ #define PCI_EXP_DEVCTL 0x08 /* Device Control */ #define PCI_EXP_DEVCTL_CERE 0x0001 /* Correctable Error Reporting En. */ #define PCI_EXP_DEVCTL_NFERE 0x0002 /* Non-Fatal Error Reporting Enable */