diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/dax.h | 7 | ||||
| -rw-r--r-- | include/linux/libnvdimm.h | 3 | ||||
| -rw-r--r-- | include/linux/memregion.h | 2 | ||||
| -rw-r--r-- | include/linux/pci.h | 1 | ||||
| -rw-r--r-- | include/linux/range.h | 5 | ||||
| -rw-r--r-- | include/trace/events/cxl.h | 112 | ||||
| -rw-r--r-- | include/uapi/linux/cxl_mem.h | 30 | ||||
| -rw-r--r-- | include/uapi/linux/pci_regs.h | 1 |
8 files changed, 42 insertions, 119 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h index 2b5ecb591059..bf6258472e49 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -262,11 +262,14 @@ static inline bool dax_mapping(struct address_space *mapping) } #ifdef CONFIG_DEV_DAX_HMEM_DEVICES -void hmem_register_device(int target_nid, struct resource *r); +void hmem_register_resource(int target_nid, struct resource *r); #else -static inline void hmem_register_device(int target_nid, struct resource *r) +static inline void hmem_register_resource(int target_nid, struct resource *r) { } #endif +typedef int (*walk_hmem_fn)(struct device *dev, int target_nid, + const struct resource *res); +int walk_hmem_resources(struct device *dev, walk_hmem_fn fn); #endif diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h index af38252ad704..e772aae71843 100644 --- a/include/linux/libnvdimm.h +++ b/include/linux/libnvdimm.h @@ -41,6 +41,9 @@ enum { */ NDD_INCOHERENT = 7, + /* dimm provider wants synchronous registration by __nvdimm_create() */ + NDD_REGISTER_SYNC = 8, + /* need to set a limit somewhere, but yes, this is likely overkill */ ND_IOCTL_MAX_BUFLEN = SZ_4M, ND_CMD_MAX_ELEM = 5, diff --git a/include/linux/memregion.h b/include/linux/memregion.h index bf83363807ac..c01321467789 100644 --- a/include/linux/memregion.h +++ b/include/linux/memregion.h @@ -3,10 +3,12 @@ #define _MEMREGION_H_ #include <linux/types.h> #include <linux/errno.h> +#include <linux/range.h> #include <linux/bug.h> struct memregion_info { int target_node; + struct range range; }; #ifdef CONFIG_MEMREGION diff --git a/include/linux/pci.h b/include/linux/pci.h index 5f6fc5358b3c..fafd8020c6d7 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -579,6 +579,7 @@ struct pci_host_bridge { unsigned int native_pme:1; /* OS may use PCIe PME */ unsigned int native_ltr:1; /* OS may use PCIe LTR */ unsigned int native_dpc:1; /* OS may use PCIe DPC */ + unsigned int native_cxl_error:1; /* OS may use CXL RAS/Events */ unsigned int preserve_config:1; /* Preserve FW resource setup */ unsigned int size_windows:1; /* Enable root bus sizing */ unsigned int msi_domain:1; /* Bridge wants MSI domain */ diff --git a/include/linux/range.h b/include/linux/range.h index 274681cc3154..7efb6a9b069b 100644 --- a/include/linux/range.h +++ b/include/linux/range.h @@ -13,6 +13,11 @@ static inline u64 range_len(const struct range *range) return range->end - range->start + 1; } +static inline bool range_contains(struct range *r1, struct range *r2) +{ + return r1->start <= r2->start && r1->end >= r2->end; +} + int add_range(struct range *range, int az, int nr_range, u64 start, u64 end); diff --git a/include/trace/events/cxl.h b/include/trace/events/cxl.h deleted file mode 100644 index ad085a2534ef..000000000000 --- a/include/trace/events/cxl.h +++ /dev/null @@ -1,112 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#undef TRACE_SYSTEM -#define TRACE_SYSTEM cxl - -#if !defined(_CXL_EVENTS_H) || defined(TRACE_HEADER_MULTI_READ) -#define _CXL_EVENTS_H - -#include <linux/tracepoint.h> - -#define CXL_HEADERLOG_SIZE SZ_512 -#define CXL_HEADERLOG_SIZE_U32 SZ_512 / sizeof(u32) - -#define CXL_RAS_UC_CACHE_DATA_PARITY BIT(0) -#define CXL_RAS_UC_CACHE_ADDR_PARITY BIT(1) -#define CXL_RAS_UC_CACHE_BE_PARITY BIT(2) -#define CXL_RAS_UC_CACHE_DATA_ECC BIT(3) -#define CXL_RAS_UC_MEM_DATA_PARITY BIT(4) -#define CXL_RAS_UC_MEM_ADDR_PARITY BIT(5) -#define CXL_RAS_UC_MEM_BE_PARITY BIT(6) -#define CXL_RAS_UC_MEM_DATA_ECC BIT(7) -#define CXL_RAS_UC_REINIT_THRESH BIT(8) -#define CXL_RAS_UC_RSVD_ENCODE BIT(9) -#define CXL_RAS_UC_POISON BIT(10) -#define CXL_RAS_UC_RECV_OVERFLOW BIT(11) -#define CXL_RAS_UC_INTERNAL_ERR BIT(14) -#define CXL_RAS_UC_IDE_TX_ERR BIT(15) -#define CXL_RAS_UC_IDE_RX_ERR BIT(16) - -#define show_uc_errs(status) __print_flags(status, " | ", \ - { CXL_RAS_UC_CACHE_DATA_PARITY, "Cache Data Parity Error" }, \ - { CXL_RAS_UC_CACHE_ADDR_PARITY, "Cache Address Parity Error" }, \ - { CXL_RAS_UC_CACHE_BE_PARITY, "Cache Byte Enable Parity Error" }, \ - { CXL_RAS_UC_CACHE_DATA_ECC, "Cache Data ECC Error" }, \ - { CXL_RAS_UC_MEM_DATA_PARITY, "Memory Data Parity Error" }, \ - { CXL_RAS_UC_MEM_ADDR_PARITY, "Memory Address Parity Error" }, \ - { CXL_RAS_UC_MEM_BE_PARITY, "Memory Byte Enable Parity Error" }, \ - { CXL_RAS_UC_MEM_DATA_ECC, "Memory Data ECC Error" }, \ - { CXL_RAS_UC_REINIT_THRESH, "REINIT Threshold Hit" }, \ - { CXL_RAS_UC_RSVD_ENCODE, "Received Unrecognized Encoding" }, \ - { CXL_RAS_UC_POISON, "Received Poison From Peer" }, \ - { CXL_RAS_UC_RECV_OVERFLOW, "Receiver Overflow" }, \ - { CXL_RAS_UC_INTERNAL_ERR, "Component Specific Error" }, \ - { CXL_RAS_UC_IDE_TX_ERR, "IDE Tx Error" }, \ - { CXL_RAS_UC_IDE_RX_ERR, "IDE Rx Error" } \ -) - -TRACE_EVENT(cxl_aer_uncorrectable_error, - TP_PROTO(const struct device *dev, u32 status, u32 fe, u32 *hl), - TP_ARGS(dev, status, fe, hl), - TP_STRUCT__entry( - __string(dev_name, dev_name(dev)) - __field(u32, status) - __field(u32, first_error) - __array(u32, header_log, CXL_HEADERLOG_SIZE_U32) - ), - TP_fast_assign( - __assign_str(dev_name, dev_name(dev)); - __entry->status = status; - __entry->first_error = fe; - /* - * Embed the 512B headerlog data for user app retrieval and - * parsing, but no need to print this in the trace buffer. - */ - memcpy(__entry->header_log, hl, CXL_HEADERLOG_SIZE); - ), - TP_printk("%s: status: '%s' first_error: '%s'", - __get_str(dev_name), - show_uc_errs(__entry->status), - show_uc_errs(__entry->first_error) - ) -); - -#define CXL_RAS_CE_CACHE_DATA_ECC BIT(0) -#define CXL_RAS_CE_MEM_DATA_ECC BIT(1) -#define CXL_RAS_CE_CRC_THRESH BIT(2) -#define CLX_RAS_CE_RETRY_THRESH BIT(3) -#define CXL_RAS_CE_CACHE_POISON BIT(4) -#define CXL_RAS_CE_MEM_POISON BIT(5) -#define CXL_RAS_CE_PHYS_LAYER_ERR BIT(6) - -#define show_ce_errs(status) __print_flags(status, " | ", \ - { CXL_RAS_CE_CACHE_DATA_ECC, "Cache Data ECC Error" }, \ - { CXL_RAS_CE_MEM_DATA_ECC, "Memory Data ECC Error" }, \ - { CXL_RAS_CE_CRC_THRESH, "CRC Threshold Hit" }, \ - { CLX_RAS_CE_RETRY_THRESH, "Retry Threshold" }, \ - { CXL_RAS_CE_CACHE_POISON, "Received Cache Poison From Peer" }, \ - { CXL_RAS_CE_MEM_POISON, "Received Memory Poison From Peer" }, \ - { CXL_RAS_CE_PHYS_LAYER_ERR, "Received Error From Physical Layer" } \ -) - -TRACE_EVENT(cxl_aer_correctable_error, - TP_PROTO(const struct device *dev, u32 status), - TP_ARGS(dev, status), - TP_STRUCT__entry( - __string(dev_name, dev_name(dev)) - __field(u32, status) - ), - TP_fast_assign( - __assign_str(dev_name, dev_name(dev)); - __entry->status = status; - ), - TP_printk("%s: status: '%s'", - __get_str(dev_name), show_ce_errs(__entry->status) - ) -); - -#endif /* _CXL_EVENTS_H */ - -/* This part must be outside protection */ -#undef TRACE_INCLUDE_FILE -#define TRACE_INCLUDE_FILE cxl -#include <trace/define_trace.h> diff --git a/include/uapi/linux/cxl_mem.h b/include/uapi/linux/cxl_mem.h index c71021a2a9ed..86bbacf2a315 100644 --- a/include/uapi/linux/cxl_mem.h +++ b/include/uapi/linux/cxl_mem.h @@ -11,14 +11,19 @@ /** * DOC: UAPI * - * Not all of all commands that the driver supports are always available for use - * by userspace. Userspace must check the results from the QUERY command in - * order to determine the live set of commands. + * Not all of the commands that the driver supports are available for use by + * userspace at all times. Userspace can check the result of the QUERY command + * to determine the live set of commands. Alternatively, it can issue the + * command and check for failure. */ #define CXL_MEM_QUERY_COMMANDS _IOR(0xCE, 1, struct cxl_mem_query_commands) #define CXL_MEM_SEND_COMMAND _IOWR(0xCE, 2, struct cxl_send_command) +/* + * NOTE: New defines must be added to the end of the list to preserve + * compatibility because this enum is exported to user space. + */ #define CXL_CMDS \ ___C(INVALID, "Invalid Command"), \ ___C(IDENTIFY, "Identify Command"), \ @@ -68,6 +73,19 @@ static const struct { * struct cxl_command_info - Command information returned from a query. * @id: ID number for the command. * @flags: Flags that specify command behavior. + * + * CXL_MEM_COMMAND_FLAG_USER_ENABLED + * + * The given command id is supported by the driver and is supported by + * a related opcode on the device. + * + * CXL_MEM_COMMAND_FLAG_EXCLUSIVE + * + * Requests with the given command id will terminate with EBUSY as the + * kernel actively owns management of the given resource. For example, + * the label-storage-area can not be written while the kernel is + * actively managing that space. + * * @size_in: Expected input size, or ~0 if variable length. * @size_out: Expected output size, or ~0 if variable length. * @@ -77,7 +95,7 @@ static const struct { * bytes of output. * * - @id = 10 - * - @flags = 0 + * - @flags = CXL_MEM_COMMAND_FLAG_ENABLED * - @size_in = ~0 * - @size_out = 0 * @@ -87,7 +105,9 @@ struct cxl_command_info { __u32 id; __u32 flags; -#define CXL_MEM_COMMAND_FLAG_MASK GENMASK(0, 0) +#define CXL_MEM_COMMAND_FLAG_MASK GENMASK(1, 0) +#define CXL_MEM_COMMAND_FLAG_ENABLED BIT(0) +#define CXL_MEM_COMMAND_FLAG_EXCLUSIVE BIT(1) __u32 size_in; __u32 size_out; diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 85ab1278811e..dc2000e0fe3a 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -693,6 +693,7 @@ #define PCI_EXP_LNKCTL2_TX_MARGIN 0x0380 /* Transmit Margin */ #define PCI_EXP_LNKCTL2_HASD 0x0020 /* HW Autonomous Speed Disable */ #define PCI_EXP_LNKSTA2 0x32 /* Link Status 2 */ +#define PCI_EXP_LNKSTA2_FLIT 0x0400 /* Flit Mode Status */ #define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 0x32 /* end of v2 EPs w/ link */ #define PCI_EXP_SLTCAP2 0x34 /* Slot Capabilities 2 */ #define PCI_EXP_SLTCAP2_IBPD 0x00000001 /* In-band PD Disable Supported */ |