| Robert Mustacchi | 047043c | 2020-04-08 21:35:09 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file and its contents are supplied under the terms of the |
| 3 | * Common Development and Distribution License ("CDDL"), version 1.0. |
| 4 | * You may only use this file in accordance with the terms of version |
| 5 | * 1.0 of the CDDL. |
| 6 | * |
| 7 | * A full copy of the text of the CDDL should have accompanied this |
| 8 | * source. A copy of the CDDL is also available via the Internet at |
| 9 | * http://www.illumos.org/license/CDDL. |
| 10 | */ |
| 11 | |
| 12 | /* |
| Robert Mustacchi | 71815ce | 2022-02-28 09:46:53 +0000 | [diff] [blame] | 13 | * Copyright 2022 Oxide Computer Company |
| Robert Mustacchi | 047043c | 2020-04-08 21:35:09 -0700 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | #ifndef _AMDZEN_CLIENT_H |
| 17 | #define _AMDZEN_CLIENT_H |
| 18 | |
| 19 | /* |
| 20 | * This header provides client routines to clients of the amdzen nexus driver. |
| 21 | */ |
| 22 | |
| 23 | #include <sys/types.h> |
| Robert Mustacchi | 71815ce | 2022-02-28 09:46:53 +0000 | [diff] [blame] | 24 | #include <sys/amdzen/df.h> |
| Keith M Wesolowski | ba215ef | 2022-07-21 06:57:54 -0700 | [diff] [blame] | 25 | #include <sys/amdzen/smn.h> |
| Robert Mustacchi | 047043c | 2020-04-08 21:35:09 -0700 | [diff] [blame] | 26 | |
| 27 | #ifdef __cplusplus |
| 28 | extern "C" { |
| 29 | #endif |
| 30 | |
| Robert Mustacchi | 71815ce | 2022-02-28 09:46:53 +0000 | [diff] [blame] | 31 | /* |
| Robert Mustacchi | 71815ce | 2022-02-28 09:46:53 +0000 | [diff] [blame] | 32 | * This struct encodes enough information to later be used to compose and |
| 33 | * decompose a fabric ID and component ID. A fabric ID is broken into its node |
| 34 | * and component IDs and then a node ID is further decomposed into a socket and |
| 35 | * die ID. |
| 36 | */ |
| 37 | typedef struct { |
| 38 | uint32_t dfd_sock_mask; |
| 39 | uint32_t dfd_die_mask; |
| 40 | uint32_t dfd_node_mask; |
| 41 | uint32_t dfd_comp_mask; |
| 42 | uint8_t dfd_sock_shift; |
| 43 | uint8_t dfd_die_shift; |
| 44 | uint8_t dfd_node_shift; |
| 45 | uint8_t dfd_comp_shift; |
| 46 | } df_fabric_decomp_t; |
| 47 | |
| Robert Mustacchi | 71815ce | 2022-02-28 09:46:53 +0000 | [diff] [blame] | 48 | extern uint_t amdzen_c_df_count(void); |
| 49 | extern df_rev_t amdzen_c_df_rev(void); |
| 50 | extern int amdzen_c_df_fabric_decomp(df_fabric_decomp_t *); |
| 51 | |
| 52 | /* |
| 53 | * SMN and DF access routines. |
| 54 | */ |
| Keith M Wesolowski | 4adf43b | 2022-11-09 07:00:30 +0000 | [diff] [blame^] | 55 | extern int amdzen_c_smn_read(uint_t, const smn_reg_t, uint32_t *); |
| 56 | extern int amdzen_c_smn_write(uint_t, const smn_reg_t, const uint32_t); |
| Robert Mustacchi | 71815ce | 2022-02-28 09:46:53 +0000 | [diff] [blame] | 57 | extern int amdzen_c_df_read32(uint_t, uint8_t, const df_reg_def_t, uint32_t *); |
| 58 | extern int amdzen_c_df_read64(uint_t, uint8_t, const df_reg_def_t, uint64_t *); |
| 59 | |
| 60 | /* |
| 61 | * The following are logical types that we can iterate over. Note, that these |
| 62 | * are a combination of a DF type and subtype. This is used to smooth over the |
| 63 | * differences between different DF revisions and how they indicate these types. |
| 64 | */ |
| 65 | typedef enum { |
| 66 | /* |
| 67 | * Iterate over only DDR memory controllers. |
| 68 | */ |
| 69 | ZEN_DF_TYPE_CS_UMC, |
| 70 | /* |
| 71 | * Iterate only over CPU based CCMs. |
| 72 | */ |
| 73 | ZEN_DF_TYPE_CCM_CPU |
| 74 | } zen_df_type_t; |
| 75 | |
| 76 | typedef int (*amdzen_c_iter_f)(uint_t, uint32_t, uint32_t, void *); |
| 77 | extern int amdzen_c_df_iter(uint_t, zen_df_type_t, amdzen_c_iter_f, void *); |
| Robert Mustacchi | 047043c | 2020-04-08 21:35:09 -0700 | [diff] [blame] | 78 | |
| 79 | #ifdef __cplusplus |
| 80 | } |
| 81 | #endif |
| 82 | |
| 83 | #endif /* _AMDZEN_CLIENT_H */ |