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Diffstat (limited to 'drivers/fpga/dfl.h')
-rw-r--r--drivers/fpga/dfl.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl.h
index 06cfcd5e84bb..20eaddce6988 100644
--- a/drivers/fpga/dfl.h
+++ b/drivers/fpga/dfl.h
@@ -74,11 +74,47 @@
#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 */
#define DFH_TYPE_AFU 1
#define DFH_TYPE_PRIVATE 3
#define DFH_TYPE_FIU 4
+/*
+ * DFHv1 Register Offset definitons
+ * In DHFv1, DFH + GUID + CSR_START + CSR_SIZE_GROUP + PARAM_HDR + PARAM_DATA
+ * as common header registers
+ */
+#define DFHv1_CSR_ADDR 0x18 /* CSR Register start address */
+#define DFHv1_CSR_SIZE_GRP 0x20 /* Size of Reg Block and Group/tag */
+#define DFHv1_PARAM_HDR 0x28 /* Optional First Param header */
+
+/*
+ * 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_VER GENMASK_ULL(31, 16) /* Version Param */
+#define DFHv1_PARAM_HDR_NEXT_OFFSET GENMASK_ULL(63, 35) /* Offset of next Param */
+#define DFHv1_PARAM_HDR_NEXT_EOP BIT_ULL(32)
+#define DFHv1_PARAM_DATA 0x08 /* Offset of Param data from Param header */
+
+#define DFHv1_PARAM_ID_MSI_X 0x1
+#define DFHv1_PARAM_MSI_X_NUMV GENMASK_ULL(63, 32)
+#define DFHv1_PARAM_MSI_X_STARTV GENMASK_ULL(31, 0)
+
/* Next AFU Register Bitfield */
#define NEXT_AFU_NEXT_DFH_OFST GENMASK_ULL(23, 0) /* Offset to next AFU */
@@ -231,6 +267,7 @@ struct dfl_feature_irq_ctx {
*
* @dev: ptr to pdev of the feature device which has the sub feature.
* @id: sub feature id.
+ * @revision: revisition of the instance of a feature.
* @resource_index: each sub feature has one mmio resource for its registers.
* this index is used to find its mmio resource from the
* feature dev (platform device)'s resources.
@@ -240,6 +277,9 @@ struct dfl_feature_irq_ctx {
* @ops: ops of this sub feature.
* @ddev: ptr to the dfl device of this sub feature.
* @priv: priv data of this feature.
+ * @dfh_version: version of the DFH
+ * @param_size: size of dfh parameters
+ * @params: point to memory copy of dfh parameters
*/
struct dfl_feature {
struct platform_device *dev;
@@ -252,6 +292,9 @@ struct dfl_feature {
const struct dfl_feature_ops *ops;
struct dfl_device *ddev;
void *priv;
+ u8 dfh_version;
+ unsigned int param_size;
+ void *params;
};
#define FEATURE_DEV_ID_UNUSED (-1)