| 1 |
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| 2 |
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| 3 | #ifndef __CXL_FEATURES_H__
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| 4 | #define __CXL_FEATURES_H__
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| 5 |
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| 6 | #include <linux/uuid.h>
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| 7 | #include <linux/fwctl.h>
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| 8 | #include <uapi/cxl/features.h>
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| 9 |
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| 10 |
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| 11 | #define CXL_FEAT_PATROL_SCRUB_UUID \
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| 12 | UUID_INIT(0x96dad7d6, 0xfde8, 0x482b, 0xa7, 0x33, 0x75, 0x77, 0x4e, \
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| 13 | 0x06, 0xdb, 0x8a)
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| 14 |
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| 15 | #define CXL_FEAT_ECS_UUID \
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| 16 | UUID_INIT(0xe5b13f22, 0x2328, 0x4a14, 0xb8, 0xba, 0xb9, 0x69, 0x1e, \
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| 17 | 0x89, 0x33, 0x86)
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| 18 |
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| 19 | #define CXL_FEAT_SPPR_UUID \
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| 20 | UUID_INIT(0x892ba475, 0xfad8, 0x474e, 0x9d, 0x3e, 0x69, 0x2c, 0x91, \
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| 21 | 0x75, 0x68, 0xbb)
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| 22 |
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| 23 | #define CXL_FEAT_HPPR_UUID \
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| 24 | UUID_INIT(0x80ea4521, 0x786f, 0x4127, 0xaf, 0xb1, 0xec, 0x74, 0x59, \
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| 25 | 0xfb, 0x0e, 0x24)
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| 26 |
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| 27 | #define CXL_FEAT_CACHELINE_SPARING_UUID \
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| 28 | UUID_INIT(0x96C33386, 0x91dd, 0x44c7, 0x9e, 0xcb, 0xfd, 0xaf, 0x65, \
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| 29 | 0x03, 0xba, 0xc4)
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| 30 |
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| 31 | #define CXL_FEAT_ROW_SPARING_UUID \
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| 32 | UUID_INIT(0x450ebf67, 0xb135, 0x4f97, 0xa4, 0x98, 0xc2, 0xd5, 0x7f, \
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| 33 | 0x27, 0x9b, 0xed)
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| 34 |
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| 35 | #define CXL_FEAT_BANK_SPARING_UUID \
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| 36 | UUID_INIT(0x78b79636, 0x90ac, 0x4b64, 0xa4, 0xef, 0xfa, 0xac, 0x5d, \
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| 37 | 0x18, 0xa8, 0x63)
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| 38 |
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| 39 | #define CXL_FEAT_RANK_SPARING_UUID \
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| 40 | UUID_INIT(0x34dbaff5, 0x0552, 0x4281, 0x8f, 0x76, 0xda, 0x0b, 0x5e, \
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| 41 | 0x7a, 0x76, 0xa7)
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| 42 |
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| 43 |
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| 44 | enum cxl_features_capability {
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| 45 | CXL_FEATURES_NONE = 0,
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| 46 | CXL_FEATURES_RO,
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| 47 | CXL_FEATURES_RW,
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| 48 | };
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| 49 |
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| 50 | |
| 51 | * struct cxl_features_state - The Features state for the device
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| 52 | * @cxlds: Pointer to CXL device state
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| 53 | * @entries: CXl feature entry context
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| 54 |
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| 55 | struct cxl_features_state {
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| 56 | struct cxl_dev_state *cxlds;
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| 57 | struct cxl_feat_entries {
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| 58 | int num_features;
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| 59 | int num_user_features;
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| 60 | struct cxl_feat_entry ent[] __counted_by(num_features);
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| 61 | } *entries;
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| 62 | };
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| 63 |
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| 64 | struct cxl_mailbox;
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| 65 | struct cxl_memdev;
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| 66 | #ifdef CONFIG_CXL_FEATURES
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| 67 | struct cxl_features_state *to_cxlfs(struct cxl_dev_state *cxlds);
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| 68 | int devm_cxl_setup_features(struct cxl_dev_state *cxlds);
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| 69 | int devm_cxl_setup_fwctl(struct device *host, struct cxl_memdev *cxlmd);
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| 70 | #else
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| 71 | static inline struct cxl_features_state *to_cxlfs(struct cxl_dev_state *cxlds)
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| 72 | {
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| 73 | return NULL;
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| 74 | }
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| 75 |
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| 76 | static inline int devm_cxl_setup_features(struct cxl_dev_state *cxlds)
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| 77 | {
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| 78 | return -EOPNOTSUPP;
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| 79 | }
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| 80 |
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| 81 | static inline int devm_cxl_setup_fwctl(struct device *host,
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| 82 | struct cxl_memdev *cxlmd)
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| 83 | {
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| 84 | return -EOPNOTSUPP;
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| 85 | }
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| 86 | #endif
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| 87 |
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| 88 | #endif
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