Alison Schofield 0468ac5624 cxl/region: Allow out of order assembly of autodiscovered regions ... [ Upstream commit cb66b1d60c ] Autodiscovered regions can fail to assemble if they are not discovered in HPA decode order. The user will see failure messages like: [] cxl region0: endpoint5: HPA order violation region1 [] cxl region0: endpoint5: failed to allocate region reference The check that is causing the failure helps the CXL driver enforce a CXL spec mandate that decoders be committed in HPA order. The check is needless for autodiscovered regions since their decoders are already programmed. Trying to enforce order in the assembly of these regions is useless because they are assembled once all their member endpoints arrive, and there is no guarantee on the order in which endpoints are discovered during probe. Keep the existing check, but for autodiscovered regions, allow the out of order assembly after a sanity check that the lesser numbered decoder has the lesser HPA starting address. Signed-off-by: Alison Schofield <alison.schofield@intel.com> Tested-by: Wonjae Lee <wj28.lee@samsung.com> Link: https://lore.kernel.org/r/3dec69ee97524ab229a20c6739272c3000b18408.1706736863.git.alison.schofield@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-03-26 18:19:12 -04:00
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core	cxl/region: Allow out of order assembly of autodiscovered regions	2024-03-26 18:19:12 -04:00
acpi.c	cxl/acpi: Fix load failures due to single window creation failure	2024-03-01 13:34:59 +01:00
cxl.h	cxl/port: Fix missing target list lock	2024-01-25 15:35:55 -08:00
cxlmem.h	cxl/memdev: Fix sanitize vs decoder setup locking	2023-11-20 11:59:30 +01:00
cxlpci.h	cxl/pci: Find and register CXL PMU devices	2023-05-30 11:20:35 -07:00
Kconfig	cxl: fix CONFIG_FW_LOADER dependency	2023-07-14 14:32:22 -06:00
Makefile	cxl/pmem: Introduce nvdimm_security_ops with ->get_flags() operation	2022-11-30 16:30:47 -08:00
mem.c	Merge branch 'for-6.5/cxl-rch-eh' into for-6.5/cxl	2023-06-25 18:56:13 -07:00
pci.c	cxl/core/regs: Rename @dev to @host in struct cxl_register_map	2023-11-20 11:59:31 +01:00
pmem.c	cxl/mbox: Move mailbox related driver state to its own data structure	2023-06-25 14:31:08 -07:00
pmu.h	cxl/pci: Find and register CXL PMU devices	2023-05-30 11:20:35 -07:00
port.c	Merge branch 'for-6.5/cxl-rch-eh' into for-6.5/cxl	2023-06-25 18:56:13 -07:00
security.c	Merge branch 'for-6.5/cxl-type-2' into for-6.5/cxl	2023-06-25 17:16:51 -07:00