On Wed, Jul 17, 2024 at 03:55:03PM -0500, Wei Huang wrote: > Linux has some basic, but incomplete, definition for the TPH Requester > capability registers. Also the control registers of TPH Requester and > the TPH Completer are missing. Add all required definitions to support > TPH without changing the existing uapi. > +#define PCI_TPH_CAP_NO_ST 0x00000001 /* no ST mode supported */ > +#define PCI_TPH_CAP_INT_VEC 0x00000002 /* interrupt vector mode supported */ > +#define PCI_TPH_CAP_DS 0x00000004 /* device specific mode supported */ Capitalize to match spec usage. Also below. > +#define PCI_TPH_CAP_EXT_TPH 0x00000100 /* extended TPH requestor supported */ s/requestor/requester/ > +#define PCI_TPH_CAP_LOC_MASK 0x00000600 /* location mask */ > +#define PCI_TPH_LOC_NONE 0x00000000 /* no location */ > +#define PCI_TPH_LOC_CAP 0x00000200 /* in capability */ > +#define PCI_TPH_LOC_MSIX 0x00000400 /* in MSI-X */ > #define PCI_TPH_CAP_ST_MASK 0x07FF0000 /* ST table mask */ > #define PCI_TPH_CAP_ST_SHIFT 16 /* ST table shift */ > #define PCI_TPH_BASE_SIZEOF 0xc /* size with no ST table */ > > +#define PCI_TPH_CTRL 8 /* control register */ > +#define PCI_TPH_CTRL_MODE_SEL_MASK 0x00000007 /* ST mode select mask */ > +#define PCI_TPH_NO_ST_MODE 0x0 /* no ST mode */ > +#define PCI_TPH_INT_VEC_MODE 0x1 /* interrupt vector mode */ > +#define PCI_TPH_DEV_SPEC_MODE 0x2 /* device specific mode */ > +#define PCI_TPH_CTRL_REQ_EN_MASK 0x00000300 /* TPH requester mask */ > +#define PCI_TPH_REQ_DISABLE 0x0 /* no TPH request allowed */ > +#define PCI_TPH_REQ_TPH_ONLY 0x1 /* 8-bit TPH tags allowed */ > +#define PCI_TPH_REQ_EXT_TPH 0x3 /* 16-bit TPH tags allowed */ > + > /* Downstream Port Containment */ > #define PCI_EXP_DPC_CAP 0x04 /* DPC Capability */ > #define PCI_EXP_DPC_IRQ 0x001F /* Interrupt Message Number */ > -- > 2.45.1 >
