diff options
| author | David Woodhouse <David.Woodhouse@intel.com> | 2009-06-08 12:21:27 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-06-08 12:21:27 +0100 |
| commit | e635a01ea0a16cf7cd31ecd2305870385dca9be6 (patch) | |
| tree | c7153e7dee5caf6ac90d85694ff27e4d0b606290 /arch/powerpc/platforms/cell/ras.c | |
| parent | 143070e74630b9557e1bb64d899ff2cc5a1dcb48 (diff) | |
| parent | 947391cfbaa3b08558844c0b187bcd0223c3f660 (diff) | |
Merge branch 'next-mtd' of git://aeryn.fluff.org.uk/bjdooks/linux
Diffstat (limited to 'arch/powerpc/platforms/cell/ras.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/ras.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c index 5f961c464cc4..296b5268754e 100644 --- a/arch/powerpc/platforms/cell/ras.c +++ b/arch/powerpc/platforms/cell/ras.c @@ -122,12 +122,23 @@ static int __init cbe_ptcal_enable_on_node(int nid, int order) area->nid = nid; area->order = order; - area->pages = alloc_pages_node(area->nid, GFP_KERNEL, area->order); + area->pages = alloc_pages_node(area->nid, GFP_KERNEL | GFP_THISNODE, + area->order); - if (!area->pages) + if (!area->pages) { + printk(KERN_WARNING "%s: no page on node %d\n", + __func__, area->nid); goto out_free_area; + } - addr = __pa(page_address(area->pages)); + /* + * We move the ptcal area to the middle of the allocated + * page, in order to avoid prefetches in memcpy and similar + * functions stepping on it. + */ + addr = __pa(page_address(area->pages)) + (PAGE_SIZE >> 1); + printk(KERN_DEBUG "%s: enabling PTCAL on node %d address=0x%016lx\n", + __func__, area->nid, addr); ret = -EIO; if (rtas_call(ptcal_start_tok, 3, 1, NULL, area->nid, |