diff options
| author | Sandor Bodo-Merle | 2021-06-22 17:26:30 +0200 |
|---|---|---|
| committer | Lorenzo Pieralisi | 2021-06-22 16:43:42 +0100 |
| commit | 2dc0a201d0f59e6818ef443609f0850a32910844 (patch) | |
| tree | 0c656222fbe4bbe90f70c1accda5828d7c850554 /Documentation | |
| parent | e673d697b9a234fc3544ac240e173cef8c82b349 (diff) | |
PCI: iproc: Support multi-MSI only on uniprocessor kernel
The interrupt affinity scheme used by this driver is incompatible with
multi-MSI as it implies moving the doorbell address to that of another MSI
group. This isn't possible for multi-MSI, as all the MSIs must have the
same doorbell address. As such it is restricted to systems with a single
CPU.
Link: https://lore.kernel.org/r/20210622152630.40842-2-sbodomerle@gmail.com
Fixes: fc54bae28818 ("PCI: iproc: Allow allocation of multiple MSIs")
Reported-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Sandor Bodo-Merle <sbodomerle@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Pali Rohár <pali@kernel.org>
Acked-by: Ray Jui <ray.jui@broadcom.com>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions