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powerpc/eeh: Move EEH initialization around

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Currently, we have 3 phases for EEH initialization on pSeries platform.
All of them are done through builtin functions: platform initialization,
EEH device creation, and EEH subsystem enablement. All of them are done
no later than ppc_md.setup_arch. That means that the slab/slub isn't ready
yet, so we have to allocate memory chunks on basis of PAGE_SIZE for those
dynamically created EEH devices. That's pretty expensive.

In order to utilize slab/slub for memory allocation, we have to move the EEH
initialization functions around, but all of them should be called after slab
is ready.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Gavin Shan 2012-09-07 22:44:02 +00:00 • committed by Benjamin Herrenschmidt
parent 407821a34f
commit 35e5cfe27e
6 changed files with 15 additions and 26 deletions
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3
arch/powerpc/kernel/rtas_pci.c
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@ -275,9 +275,6 @@ void __init find_and_init_phbs(void)
of_node_put(root);
pci_devs_phb_init();
/* Create EEH devices for all PHBs */
eeh_dev_phb_init();
/*
* PCI_PROBE_ONLY and PCI_REASSIGN_ALL_BUS can be set via properties
* in chosen.