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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2022 Oxide Computer Company
*/
#ifndef _AMDZEN_H
#define _AMDZEN_H
#include <sys/ddi.h>
#include <sys/sunddi.h>
#include <sys/list.h>
#include <sys/pci.h>
#include <sys/taskq.h>
#include <sys/bitmap.h>
#include <sys/amdzen/df.h>
#include "amdzen_client.h"
/*
* This header describes properties of the data fabric and our internal state
* for the Zen Nexus driver.
*/
#ifdef __cplusplus
extern "C" {
#endif
/*
* The data fabric devices are always defined to be on PCI bus zero starting at
* device 0x18.
*/
#define AMDZEN_DF_BUSNO 0x00
#define AMDZEN_DF_FIRST_DEVICE 0x18
/*
* The maximum amount of Data Fabric node's we can see. In Zen 1 there were up
* to four per package.
*/
#define AMDZEN_MAX_DFS 0x8
/*
* The maximum number of PCI functions we expect to encounter on the data
* fabric.
*/
#define AMDZEN_MAX_DF_FUNCS 0x8
/*
* Northbridge registers that are relevant for the nexus, mostly for SMN.
*/
#define AMDZEN_NB_SMN_ADDR 0x60
#define AMDZEN_NB_SMN_DATA 0x64
/*
* AMD PCI ID for reference
*/
#define AMDZEN_PCI_VID_AMD 0x1022
/*
* Hygon PCI ID for reference
*/
#define AMDZEN_PCI_VID_HYGON 0x1d94
typedef enum {
AMDZEN_STUB_TYPE_DF,
AMDZEN_STUB_TYPE_NB
} amdzen_stub_type_t;
typedef struct {
list_node_t azns_link;
dev_info_t *azns_dip;
uint16_t azns_vid;
uint16_t azns_did;
uint16_t azns_bus;
uint16_t azns_dev;
uint16_t azns_func;
ddi_acc_handle_t azns_cfgspace;
} amdzen_stub_t;
typedef enum {
AMDZEN_DFE_F_MCA = 1 << 0,
AMDZEN_DFE_F_ENABLED = 1 << 1
} amdzen_df_ent_flags_t;
typedef struct {
uint8_t adfe_drvid;
amdzen_df_ent_flags_t adfe_flags;
df_type_t adfe_type;
uint8_t adfe_subtype;
uint8_t adfe_fabric_id;
uint8_t adfe_inst_id;
uint32_t adfe_info0;
uint32_t adfe_info1;
uint32_t adfe_info2;
uint32_t adfe_info3;
} amdzen_df_ent_t;
typedef enum {
AMDZEN_DF_F_VALID = 1 << 0,
AMDZEN_DF_F_FOUND_NB = 1 << 1,
} amdzen_df_flags_t;
typedef struct {
amdzen_df_flags_t adf_flags;
uint_t adf_nb_busno;
amdzen_stub_t *adf_funcs[AMDZEN_MAX_DF_FUNCS];
amdzen_stub_t *adf_nb;
uint8_t adf_major;
uint8_t adf_minor;
uint_t adf_nents;
df_rev_t adf_rev;
amdzen_df_ent_t *adf_ents;
uint32_t adf_nodeid;
uint32_t adf_syscfg;
uint32_t adf_mask0;
uint32_t adf_mask1;
uint32_t adf_mask2;
df_fabric_decomp_t adf_decomp;
} amdzen_df_t;
typedef enum {
AMDZEN_F_UNSUPPORTED = 1 << 0,
AMDZEN_F_DEVICE_ERROR = 1 << 1,
AMDZEN_F_MAP_ERROR = 1 << 2,
AMDZEN_F_SCAN_DISPATCHED = 1 << 3,
AMDZEN_F_SCAN_COMPLETE = 1 << 4,
AMDZEN_F_ATTACH_DISPATCHED = 1 << 5,
AMDZEN_F_ATTACH_COMPLETE = 1 << 6
} amdzen_flags_t;
#define AMDZEN_F_TASKQ_MASK (AMDZEN_F_SCAN_DISPATCHED | \
AMDZEN_F_SCAN_COMPLETE | AMDZEN_F_ATTACH_DISPATCHED | \
AMDZEN_F_ATTACH_COMPLETE)
typedef struct amdzen {
kmutex_t azn_mutex;
kcondvar_t azn_cv;
amdzen_flags_t azn_flags;
dev_info_t *azn_dip;
taskqid_t azn_taskqid;
uint_t azn_nscanned;
uint_t azn_npresent;
list_t azn_df_stubs;
list_t azn_nb_stubs;
uint_t azn_ndfs;
amdzen_df_t azn_dfs[AMDZEN_MAX_DFS];
} amdzen_t;
typedef enum {
AMDZEN_C_SMNTEMP = 1,
AMDZEN_C_USMN,
AMDZEN_C_ZEN_UDF,
AMDZEN_C_ZEN_UMC
} amdzen_child_t;
/*
* Functions for stubs.
*/
extern int amdzen_attach_stub(dev_info_t *, ddi_attach_cmd_t);
extern int amdzen_detach_stub(dev_info_t *, ddi_detach_cmd_t);
#ifdef __cplusplus
}
#endif
#endif /* _AMDZEN_H */
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