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| author | Julien Grall <[email protected]> | 2019-05-01 13:58:23 +0000 |
|---|---|---|
| committer | Marc Zyngier <[email protected]> | 2019-05-03 14:30:03 +0000 |
| commit | 73103975425786ebdb6c4d2868ecf26f391fb77e (patch) | |
| tree | 38988ca2b22ef18a68ce28d56e2ee288b978d43e /drivers/fpga/fpga-bridge.c | |
| parent | irqchip/ls-scfg-msi: Don't map the MSI page in ls_scfg_msi_compose_msg() (diff) | |
| download | kernel-73103975425786ebdb6c4d2868ecf26f391fb77e.tar.gz kernel-73103975425786ebdb6c4d2868ecf26f391fb77e.zip | |
irqchip/gic-v3-mbi: Don't map the MSI page in mbi_compose_m{b, s}i_msg()
The functions mbi_compose_m{b, s}i_msg may be called from non-preemptible
context. However, on RT, iommu_dma_map_msi_msg() requires to be called
from a preemptible context.
A recent patch split iommu_dma_map_msi_msg in two new functions:
one that should be called in preemptible context, the other does
not have any requirement.
The GICv3 MSI driver is reworked to avoid executing preemptible code in
non-preemptible context. This can be achieved by preparing the MSI
mapping when allocating the MSI interrupt.
Signed-off-by: Julien Grall <[email protected]>
[maz: only call iommu_dma_prepare_msi once, fix commit log accordingly]
Signed-off-by: Marc Zyngier <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-bridge.c')
0 files changed, 0 insertions, 0 deletions