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PCI/DPC: Add and use DPC Status register field definitions

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Add definitions for DPC Status register fields and use them in the code.
No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
This commit is contained in:
Bjorn Helgaas 2018-01-16 17:37:50 -06:00 • committed by Bjorn Helgaas
parent 716f0f732f
commit 01060e3d4e
2 changed files with 4 additions and 2 deletions
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2
include/uapi/linux/pci_regs.h
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@ -979,8 +979,10 @@
#define PCI_EXP_DPC_STATUS 8 /* DPC Status */
#define PCI_EXP_DPC_STATUS_TRIGGER 0x01 /* Trigger Status */
#define PCI_EXP_DPC_STATUS_TRIGGER_RSN 0x06 /* Trigger Reason */
#define PCI_EXP_DPC_STATUS_INTERRUPT 0x08 /* Interrupt Status */
#define PCI_EXP_DPC_RP_BUSY 0x10 /* Root Port Busy */
#define PCI_EXP_DPC_STATUS_TRIGGER_RSN_EXT 0x60 /* Trig Reason Extension */
#define PCI_EXP_DPC_SOURCE_ID 10 /* DPC Source Identifier */