diff options
Diffstat (limited to 'drivers/misc/cxl/cxl.h')
| -rw-r--r-- | drivers/misc/cxl/cxl.h | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 344a0ff8f8c7..a144073593fa 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -162,7 +162,10 @@ static const cxl_p2n_reg_t CXL_PSL_WED_An = {0x0A0}; #define CXL_PSL_SPAP_V 0x0000000000000001ULL /****** CXL_PSL_Control ****************************************************/ -#define CXL_PSL_Control_tb 0x0000000000000001ULL +#define CXL_PSL_Control_tb (0x1ull << (63-63)) +#define CXL_PSL_Control_Fr (0x1ull << (63-31)) +#define CXL_PSL_Control_Fs_MASK (0x3ull << (63-29)) +#define CXL_PSL_Control_Fs_Complete (0x3ull << (63-29)) /****** CXL_PSL_DLCNTL *****************************************************/ #define CXL_PSL_DLCNTL_D (0x1ull << (63-28)) @@ -615,6 +618,14 @@ struct cxl { bool perst_select_user; bool perst_same_image; bool psl_timebase_synced; + + /* + * number of contexts mapped on to this card. Possible values are: + * >0: Number of contexts mapped and new one can be mapped. + * 0: No active contexts and new ones can be mapped. + * -1: No contexts mapped and new ones cannot be mapped. + */ + atomic_t contexts_num; }; int cxl_pci_alloc_one_irq(struct cxl *adapter); @@ -854,6 +865,7 @@ int cxl_register_one_irq(struct cxl *adapter, irq_handler_t handler, int cxl_check_error(struct cxl_afu *afu); int cxl_afu_slbia(struct cxl_afu *afu); int cxl_tlb_slb_invalidate(struct cxl *adapter); +int cxl_data_cache_flush(struct cxl *adapter); int cxl_afu_disable(struct cxl_afu *afu); int cxl_psl_purge(struct cxl_afu *afu); @@ -940,4 +952,20 @@ bool cxl_pci_is_vphb_device(struct pci_dev *dev); /* decode AFU error bits in the PSL register PSL_SERR_An */ void cxl_afu_decode_psl_serr(struct cxl_afu *afu, u64 serr); + +/* + * Increments the number of attached contexts on an adapter. + * In case an adapter_context_lock is taken the return -EBUSY. + */ +int cxl_adapter_context_get(struct cxl *adapter); + +/* Decrements the number of attached contexts on an adapter */ +void cxl_adapter_context_put(struct cxl *adapter); + +/* If no active contexts then prevents contexts from being attached */ +int cxl_adapter_context_lock(struct cxl *adapter); + +/* Unlock the contexts-lock if taken. Warn and force unlock otherwise */ +void cxl_adapter_context_unlock(struct cxl *adapter); + #endif |
