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| author | Davidlohr Bueso <dave@stgolabs.net> | 2023-08-29 08:20:14 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-12-07 12:44:19 -0800 |
| commit | cb46fca88d14939da2785567253d0a297f31be27 (patch) | |
| tree | b5af44d39b801b709708088acab03c95787fdda1 | |
| parent | 33cc938e65a98f1d29d0a18403dbbee050dcad9a (diff) | |
| download | linux-cb46fca88d14939da2785567253d0a297f31be27.tar.gz linux-cb46fca88d14939da2785567253d0a297f31be27.tar.bz2 linux-cb46fca88d14939da2785567253d0a297f31be27.zip | |
cxl: Add Support for Get Timestamp
Add the call to the UAPI such that userspace may corelate the
timestamps from the device log with system wall time, if, for
example there's any sort of inaccuracy or skew in the device.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20230829152014.15452-1-dave@stgolabs.net
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| -rw-r--r-- | drivers/cxl/core/mbox.c | 1 | ||||
| -rw-r--r-- | drivers/cxl/cxlmem.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/cxl_mem.h | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index 36270dcfb42e..b86dbd25740c 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -63,6 +63,7 @@ static struct cxl_mem_command cxl_mem_commands[CXL_MEM_COMMAND_ID_MAX] = { CXL_CMD(GET_SHUTDOWN_STATE, 0, 0x1, 0), CXL_CMD(SET_SHUTDOWN_STATE, 0x1, 0, 0), CXL_CMD(GET_SCAN_MEDIA_CAPS, 0x10, 0x4, 0), + CXL_CMD(GET_TIMESTAMP, 0, 0x8, 0), }; /* diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index a2fcbca253f3..6a6becee402b 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -503,6 +503,7 @@ enum cxl_opcode { CXL_MBOX_OP_GET_FW_INFO = 0x0200, CXL_MBOX_OP_TRANSFER_FW = 0x0201, CXL_MBOX_OP_ACTIVATE_FW = 0x0202, + CXL_MBOX_OP_GET_TIMESTAMP = 0x0300, CXL_MBOX_OP_SET_TIMESTAMP = 0x0301, CXL_MBOX_OP_GET_SUPPORTED_LOGS = 0x0400, CXL_MBOX_OP_GET_LOG = 0x0401, diff --git a/include/uapi/linux/cxl_mem.h b/include/uapi/linux/cxl_mem.h index 14bc6e742148..42066f4eb890 100644 --- a/include/uapi/linux/cxl_mem.h +++ b/include/uapi/linux/cxl_mem.h @@ -46,6 +46,7 @@ ___C(GET_SCAN_MEDIA_CAPS, "Get Scan Media Capabilities"), \ ___DEPRECATED(SCAN_MEDIA, "Scan Media"), \ ___DEPRECATED(GET_SCAN_MEDIA, "Get Scan Media Results"), \ + ___C(GET_TIMESTAMP, "Get Timestamp"), \ ___C(MAX, "invalid / last command") #define ___C(a, b) CXL_MEM_COMMAND_ID_##a |