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| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-11-13 23:57:32 +0100 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2018-12-11 11:37:13 +0100 |
| commit | 830920e065e90db318a0da98bf13a02b641eae7f (patch) | |
| tree | e86e65c8c848e45a72f75bd863a4bb7b253b3c0c /firmware/.gitignore | |
| parent | Linux 4.20-rc1 (diff) | |
| download | linux-830920e065e90db318a0da98bf13a02b641eae7f.tar.xz linux-830920e065e90db318a0da98bf13a02b641eae7f.zip | |
PCI: dwc: Use interrupt masking instead of disabling
The dwc driver is showing an interesting level of brokeness, as it
insists on using the enable/disable set of registers to mask/unmask
MSIs, meaning that an MSIs being generated while the interrupt is in
that "disabled" state will simply be lost.
Let's move to the mask/unmask set of registers, which offers the
expected semantics.
Fixes: 7c5925afbc58 ("PCI: dwc: Move MSI IRQs allocation to IRQ domains
hierarchical API")
Link: https://lore.kernel.org/linux-pci/20181113225734.8026-1-marc.zyngier@arm.com/
Tested-by: Niklas Cassel <niklas.cassel@linaro.org>
Tested-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Tested-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'firmware/.gitignore')
0 files changed, 0 insertions, 0 deletions