OpenCloudOS-Kernel/drivers/cxl/core
Dave Jiang ce17ad0d54 cxl: Wait Memory_Info_Valid before access memory related info
The Memory_Info_Valid bit (CXL 3.0 8.1.3.8.2) indicates that the CXL
Range Size High and Size Low registers are valid. The bit must be set
within 1 second of reset deassertion to the device. Check valid bit
before we check the Memory_Active bit when waiting for
cxl_await_media_ready() to ensure that the memory info is valid for
consumption. Also ensures both DVSEC ranges 1 and 2 are ready if DVSEC
Capability indicates they are both supported.

Fixes: 523e594d9c ("cxl/pci: Implement wait for media active")
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/168444687469.3134781.11033518965387297327.stgit@djiang5-mobl3
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-05-18 16:42:41 -07:00
..
Makefile cxl/pci: Move tracepoint definitions to drivers/cxl/core/ 2023-01-04 17:11:11 -08:00
core.h cxl/memdev: Trace inject and clear poison as cxl_poison events 2023-04-23 12:08:39 -07:00
hdm.c cxl/hdm: Add more HDM decoder debug messages at startup 2023-04-18 10:32:47 -07:00
mbox.c Merge branch 'for-6.3/cxl-autodetect-fixes' into for-6.4/cxl 2023-04-23 12:10:13 -07:00
memdev.c cxl/memdev: Trace inject and clear poison as cxl_poison events 2023-04-23 12:08:39 -07:00
pci.c cxl: Wait Memory_Info_Valid before access memory related info 2023-05-18 16:42:41 -07:00
pmem.c cxl/port: Fix find_cxl_root() for RCDs and simplify it 2023-04-04 15:34:34 -07:00
port.c cxl for v6.4 2023-04-30 11:51:51 -07:00
region.c cxl/region: Provide region info to the cxl_poison trace event 2023-04-23 11:46:06 -07:00
regs.c cxl/regs: Fix sparse warning 2022-12-05 12:33:20 -08:00
suspend.c PM: CXL: Disable suspend 2022-04-22 16:09:42 -07:00
trace.c cxl/trace: Add an HPA to cxl_poison trace events 2023-04-23 11:46:13 -07:00
trace.h cxl/memdev: Trace inject and clear poison as cxl_poison events 2023-04-23 12:08:39 -07:00