From: Basheer Ahmed Muddebihal <basheer.ahmed.muddebihal@xxxxxxxxxxxxxxx> This patch adds the definitions for DFHv1 header and related register bitfields. Signed-off-by: Basheer Ahmed Muddebihal <basheer.ahmed.muddebihal@xxxxxxxxxxxxxxx> Signed-off-by: Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx> --- v2: clean up whitespace and one line comments --- include/linux/dfl.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/include/linux/dfl.h b/include/linux/dfl.h index 33d167c53b09..1e53468ba8d8 100644 --- a/include/linux/dfl.h +++ b/include/linux/dfl.h @@ -40,8 +40,29 @@ #define DFH_REVISION GENMASK_ULL(15, 12) /* Feature revision */ #define DFH_NEXT_HDR_OFST GENMASK_ULL(39, 16) /* Offset to next DFH */ #define DFH_EOL BIT_ULL(40) /* End of list */ +#define DFH_VERSION GENMASK_ULL(59, 52) /* DFH version */ #define DFH_TYPE GENMASK_ULL(63, 60) /* Feature type */ +/* + * CSR Rel Bit, 1'b0 = relative (offset from feature DFH start), + * 1'b1 = absolute (ARM or other non-PCIe use) + */ +#define DFHv1_CSR_ADDR_REL BIT_ULL(0) + +/* CSR Header Register Bit Definitions */ +#define DFHv1_CSR_ADDR_MASK GENMASK_ULL(63, 1) /* 63:1 of CSR address */ + +/* CSR SIZE Goup Register Bit Definitions */ +#define DFHv1_CSR_SIZE_GRP_INSTANCE_ID GENMASK_ULL(15, 0) /* Enumeration instantiated IP */ +#define DFHv1_CSR_SIZE_GRP_GROUPING_ID GENMASK_ULL(30, 16) /* Group Features/interfaces */ +#define DFHv1_CSR_SIZE_GRP_HAS_PARAMS BIT_ULL(31) /* Presence of Parameters */ +#define DFHv1_CSR_SIZE_GRP_SIZE GENMASK_ULL(63, 32) /* Size of CSR Block in bytes */ + +/* PARAM Header Register Bit Definitions */ +#define DFHv1_PARAM_HDR_ID GENMASK_ULL(15, 0) /* Id of this Param */ +#define DFHv1_PARAM_HDR_VERSION GENMASK_ULL(31, 16) /* Version Param */ +#define DFHv1_PARAM_HDR_NEXT_OFFSET GENMASK_ULL(63, 32) /* Offset of next Param */ + /** * enum dfl_id_type - define the DFL FIU types */ -- 2.25.1
