| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| 184 | 71.04% | 4 | 44.44% | |
| 48 | 18.53% | 2 | 22.22% | |
| 24 | 9.27% | 2 | 22.22% | |
| 3 | 1.16% | 1 | 11.11% | |
| Total | 259 | 9 |
| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Dan J Williams | 184 | 71.04% | 4 | 44.44% |
| Ben Widawsky | 48 | 18.53% | 2 | 22.22% |
| Ira Weiny | 24 | 9.27% | 2 | 22.22% |
| Vishal Verma | 3 | 1.16% | 1 | 11.11% |
| Total | 259 | 9 |
/* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright(c) 2020-2021 Intel Corporation. */ #ifndef __CXL_MEM_H__ #define __CXL_MEM_H__ #include <linux/cdev.h> #include "cxl.h" /* CXL 2.0 8.2.8.5.1.1 Memory Device Status Register */ #define CXLMDEV_STATUS_OFFSET 0x0 #define CXLMDEV_DEV_FATAL BIT(0) #define CXLMDEV_FW_HALT BIT(1) #define CXLMDEV_STATUS_MEDIA_STATUS_MASK GENMASK(3, 2) #define CXLMDEV_MS_NOT_READY 0 #define CXLMDEV_MS_READY 1 #define CXLMDEV_MS_ERROR 2 #define CXLMDEV_MS_DISABLED 3 #define CXLMDEV_READY(status) \ (FIELD_GET(CXLMDEV_STATUS_MEDIA_STATUS_MASK, status) == \ CXLMDEV_MS_READY) #define CXLMDEV_MBOX_IF_READY BIT(4) #define CXLMDEV_RESET_NEEDED_MASK GENMASK(7, 5) #define CXLMDEV_RESET_NEEDED_NOT 0 #define CXLMDEV_RESET_NEEDED_COLD 1 #define CXLMDEV_RESET_NEEDED_WARM 2 #define CXLMDEV_RESET_NEEDED_HOT 3 #define CXLMDEV_RESET_NEEDED_CXL 4 #define CXLMDEV_RESET_NEEDED(status) \ (FIELD_GET(CXLMDEV_RESET_NEEDED_MASK, status) != \ CXLMDEV_RESET_NEEDED_NOT) /** * struct cdevm_file_operations - devm coordinated cdev file operations * @fops: file operations that are synchronized against @shutdown * @shutdown: disconnect driver data * * @shutdown is invoked in the devres release path to disconnect any * driver instance data from @dev. It assumes synchronization with any * fops operation that requires driver data. After @shutdown an * operation may only reference @device data. */ struct cdevm_file_operations { struct file_operations fops; void (*shutdown)(struct device *dev); }; /** * struct cxl_memdev - CXL bus object representing a Type-3 Memory Device * @dev: driver core device object * @cdev: char dev core object for ioctl operations * @cxlm: pointer to the parent device driver data * @id: id number of this memdev instance. */ struct cxl_memdev { struct device dev; struct cdev cdev; struct cxl_mem *cxlm; int id; }; static inline struct cxl_memdev *to_cxl_memdev(struct device *dev) { return container_of(dev, struct cxl_memdev, dev); } struct cxl_memdev * devm_cxl_add_memdev(struct device *host, struct cxl_mem *cxlm, const struct cdevm_file_operations *cdevm_fops); /** * struct cxl_mem - A CXL memory device * @pdev: The PCI device associated with this CXL device. * @cxlmd: Logical memory device chardev / interface * @regs: Parsed register blocks * @payload_size: Size of space for payload * (CXL 2.0 8.2.8.4.3 Mailbox Capabilities Register) * @lsa_size: Size of Label Storage Area * (CXL 2.0 8.2.9.5.1.1 Identify Memory Device) * @mbox_mutex: Mutex to synchronize mailbox access. * @firmware_version: Firmware version for the memory device. * @enabled_cmds: Hardware commands found enabled in CEL. * @pmem_range: Persistent memory capacity information. * @ram_range: Volatile memory capacity information. */ struct cxl_mem { struct pci_dev *pdev; struct cxl_memdev *cxlmd; struct cxl_regs regs; size_t payload_size; size_t lsa_size; struct mutex mbox_mutex; /* Protects device mailbox and firmware */ char firmware_version[0x10]; unsigned long *enabled_cmds; struct range pmem_range; struct range ram_range; u64 total_bytes; u64 volatile_only_bytes; u64 persistent_only_bytes; u64 partition_align_bytes; u64 active_volatile_bytes; u64 active_persistent_bytes; u64 next_volatile_bytes; u64 next_persistent_bytes; }; #endif /* __CXL_MEM_H__ */