diff options
| author |   James Morse <james.morse@arm.com> | 2025-05-15 16:58:39 +0000 |
|---|---|---|
| committer |   Borislav Petkov (AMD) <bp@alien8.de> | 2025-05-15 21:06:02 +0200 |
| commit | bc740420d7ae7878696d5ad9f3dbcb11e2599b2e (patch) | |
| tree | a37cecc5c3d51e5f855c2360b5237eed7a088d2a /scripts/lib/kdoc/kdoc_files.py | |
| parent | x86/resctrl: Resctrl_exit() teardown resctrl but leave the mount point (diff) | |
| download | linux-rng-bc740420d7ae7878696d5ad9f3dbcb11e2599b2e.tar.xz linux-rng-bc740420d7ae7878696d5ad9f3dbcb11e2599b2e.zip | |
x86/resctrl: Drop __init/__exit on assorted symbols
Because ARM's MPAM controls are probed using MMIO, resctrl can't be
initialised until enough CPUs are online to have determined the system-wide
supported num_closid. Arm64 also supports 'late onlined secondaries', where
only a subset of CPUs are online during boot.
These two combine to mean the MPAM driver may not be able to initialise
resctrl until user-space has brought 'enough' CPUs online.
To allow MPAM to initialise resctrl after __init text has been free'd, remove
all the __init markings from resctrl.
The existing __exit markings cause these functions to be removed by the linker
as it has never been possible to build resctrl as a module. MPAM has an error
interrupt which causes the driver to reset and disable itself. Remove the
__exit markings to allow the MPAM driver to tear down resctrl when an error
occurs.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghuay@nvidia.com>
Tested-by: Fenghua Yu <fenghuay@nvidia.com>
Tested-by: Carl Worth <carl@os.amperecomputing.com> # arm64
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Tested-by: Peter Newman <peternewman@google.com>
Tested-by: Amit Singh Tomar <amitsinght@marvell.com> # arm64
Tested-by: Shanker Donthineni <sdonthineni@nvidia.com> # arm64
Tested-by: Babu Moger <babu.moger@amd.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/20250515165855.31452-10-james.morse@arm.com
Diffstat (limited to 'scripts/lib/kdoc/kdoc_files.py')
0 files changed, 0 insertions, 0 deletions