d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Disable the use of the quantum cache in the GICv3 ITS

Browse Source 
This uses UMA to allocate space. It causes issues when there are multiple
ITS devices in the system where interrupts are not allocated from a low
address on some interrupt controllers. Disabling the quantum cache fixes
this on the Neoverse N1 SDP.

MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
This commit is contained in:
Andrew Turner 2020-02-03 13:47:41 +00:00
parent b0af1e20e6
commit a58fc7cb88
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/arm64/arm64/gicv3_its.c
View File

@ -800,7 +800,7 @@ gicv3_its_attach(device_t dev)
* system.
*/
sc->sc_irq_alloc = vmem_create("GICv3 ITS IRQs", 0,
gicv3_get_nirqs(dev), 1, 1, M_FIRSTFIT | M_WAITOK);
gicv3_get_nirqs(dev), 1, 0, M_FIRSTFIT | M_WAITOK);
sc->sc_irqs = malloc(sizeof(*sc->sc_irqs) * sc->sc_irq_length,
M_GICV3_ITS, M_WAITOK | M_ZERO);