summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorScott Wood <scottwood@freescale.com>2014-09-18 14:05:02 -0500
committerScott Wood <scottwood@freescale.com>2014-09-19 15:01:05 -0500
commit6db35ad2373eed5deb3b105ae7c1e9de3e34ae94 (patch)
tree4e38615811beda954fb12fbec69367a80a79d63e
parent94105a762016aea3284c07c813017b90a6325f10 (diff)
downloadop-kernel-dev-6db35ad2373eed5deb3b105ae7c1e9de3e34ae94.zip
op-kernel-dev-6db35ad2373eed5deb3b105ae7c1e9de3e34ae94.tar.gz
powerpc/mm: Use common paging_init() for NUMA
Commit 1c98025c6c95bc057a25e2c6596de23288c68160 "powerpc: Dynamic DMA zone limits" updated how zones are created in paging_init(), but missed the NUMA version of paging_init(). This was noticed via a linker error, since dma_pfn_limit_to_zone() was, like the non-NUMA paging_init(), limited by #ifndef CONFIG_NEED_MULTIPLE_NODES. It turns out that the NUMA paging_init() was not actually doing anything different from the standard paging_init(), other than a couple debug prints, a couple 32-bit-only ifdef sections, and a call to mark_nonram_nosave(). It's not clear whether mark_nonram_nosave() is inherently wrong to do for NUMA, or just not useful on targets that have NUMA, but for now I'm preserving the existing behavior. Fixes: 1c98025c6c9 "powerpc: Dynamic DMA zone limits" Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Scott Wood <scottwood@freescale.com>
-rw-r--r--arch/powerpc/mm/mem.c7
-rw-r--r--arch/powerpc/mm/numa.c8
2 files changed, 6 insertions, 9 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 687e7f7..420dfff 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -259,6 +259,12 @@ static int __init mark_nonram_nosave(void)
}
return 0;
}
+#else /* CONFIG_NEED_MULTIPLE_NODES */
+static int __init mark_nonram_nosave(void)
+{
+ return 0;
+}
+#endif
static bool zone_limits_final;
@@ -351,7 +357,6 @@ void __init paging_init(void)
mark_nonram_nosave();
}
-#endif /* ! CONFIG_NEED_MULTIPLE_NODES */
static void __init register_page_bootmem_info(void)
{
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 3b181b2..5eb07f3 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1126,14 +1126,6 @@ void __init do_init_bootmem(void)
(void *)(unsigned long)boot_cpuid);
}
-void __init paging_init(void)
-{
- unsigned long max_zone_pfns[MAX_NR_ZONES];
- memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
- max_zone_pfns[ZONE_DMA] = memblock_end_of_DRAM() >> PAGE_SHIFT;
- free_area_init_nodes(max_zone_pfns);
-}
-
static int __init early_numa(char *p)
{
if (!p)
OpenPOWER on IntegriCloud