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powerpc/powernv: Don't use the vmem quantum cache for OPAL PCI MSI allocations

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vmem quantum cache is only needed when doing a lot of concurrent allocations,
which doesn't happen when allocating MSIs.  This wastes memory for the cache
zones.  Avoid this waste and don't use the quantum cache.

Reported by:	markj
This commit is contained in:
Justin Hibbits 2020-06-10 04:08:16 +00:00
parent 76d5f5e22c
commit 46e8ab5aa1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=362003
1 changed files with 1 additions and 1 deletions
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2
sys/powerpc/powernv/opal_pci.c
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@ -427,7 +427,7 @@ opalpci_attach(device_t dev)
sc->msi_base = msi_ranges[0];
sc->msi_vmem = vmem_create("OPAL MSI", msi_ranges[0],
msi_ranges[1], 1, 16, M_BESTFIT | M_WAITOK);
msi_ranges[1], 1, 0, M_BESTFIT | M_WAITOK);
sc->base_msi_irq = powerpc_register_pic(dev,
OF_xref_from_node(node),