Messages in this thread Patch in this message | | | From | Pali Rohár <> | Subject | [PATCH 2/6] PCI: Add PCI_EXP_SLTCAP_*_SHIFT macros | Date | Tue, 22 Feb 2022 17:31:54 +0100 |
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These macros allows to easily compose and extract Slot Power Limit and Physical Slot Number values from Slot Capability Register.
Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Marek Behún <kabel@kernel.org> --- include/uapi/linux/pci_regs.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 108f8523fa04..3fc9a4cac630 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -591,10 +591,13 @@ #define PCI_EXP_SLTCAP_HPS 0x00000020 /* Hot-Plug Surprise */ #define PCI_EXP_SLTCAP_HPC 0x00000040 /* Hot-Plug Capable */ #define PCI_EXP_SLTCAP_SPLV 0x00007f80 /* Slot Power Limit Value */ +#define PCI_EXP_SLTCAP_SPLV_SHIFT 7 /* Slot Power Limit Value shift */ #define PCI_EXP_SLTCAP_SPLS 0x00018000 /* Slot Power Limit Scale */ +#define PCI_EXP_SLTCAP_SPLS_SHIFT 15 /* Slot Power Limit Scale shift */ #define PCI_EXP_SLTCAP_EIP 0x00020000 /* Electromechanical Interlock Present */ #define PCI_EXP_SLTCAP_NCCS 0x00040000 /* No Command Completed Support */ #define PCI_EXP_SLTCAP_PSN 0xfff80000 /* Physical Slot Number */ +#define PCI_EXP_SLTCAP_PSN_SHIFT 19 /* Physical Slot Number shift */ #define PCI_EXP_SLTCTL 0x18 /* Slot Control */ #define PCI_EXP_SLTCTL_ABPE 0x0001 /* Attention Button Pressed Enable */ #define PCI_EXP_SLTCTL_PFDE 0x0002 /* Power Fault Detected Enable */ -- 2.20.1
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