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Commit cdcac9cd authored by Dave Airlie's avatar Dave Airlie
Browse files

pci_regs: define LNKSTA2 pcie cap + bits. 



We need these for detecting the max link speed for drm drivers.

Acked-by: default avatarBjorn Helgaas <bhelgass@google.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 440a7cd8

include/linux/pci_regs.h

+5 −0
Original line number Diff line number Diff line
@@ -521,6 +521,11 @@ 
#define  PCI_EXP_OBFF_MSGA_EN	0x2000	/* OBFF enable with Message type A */

#define  PCI_EXP_OBFF_MSGB_EN	0x4000	/* OBFF enable with Message type B */

#define  PCI_EXP_OBFF_WAKE_EN	0x6000	/* OBFF using WAKE# signaling */

#define PCI_EXP_LNKCAP2		44	/* Link Capability 2 */

#define  PCI_EXP_LNKCAP2_SLS_2_5GB 0x01	/* Current Link Speed 2.5GT/s */

#define  PCI_EXP_LNKCAP2_SLS_5_0GB 0x02	/* Current Link Speed 5.0GT/s */

#define  PCI_EXP_LNKCAP2_SLS_8_0GB 0x04	/* Current Link Speed 8.0GT/s */

#define  PCI_EXP_LNKCAP2_CROSSLINK 0x100 /* Crosslink supported */

#define PCI_EXP_LNKCTL2		48	/* Link Control 2 */

#define PCI_EXP_SLTCTL2		56	/* Slot Control 2 */