diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-21 18:46:08 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-21 18:46:08 +0300 |
commit | cd6a22310ec2a70092e136d0cd65bb77c1502521 (patch) | |
tree | c01fa788b27b240c7b426d7f329d92bd58c7b8f5 /arch/powerpc/mm/init_64.c | |
parent | 1e12a521d6917004f8b95a3b5864b92edc2694c8 (diff) | |
parent | 177c459b08a34dcf004aa9a4c1f1d8be682ff3af (diff) | |
download | linux-cd6a22310ec2a70092e136d0cd65bb77c1502521.tar.xz |
Merge USB 4.20-rc8 mergepoint into usb-next
We need the USB changes in here for additional patches to be able to
apply cleanly.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/powerpc/mm/init_64.c')
-rw-r--r-- | arch/powerpc/mm/init_64.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index 7a9886f98b0c..a5091c034747 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -188,15 +188,20 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node, pr_debug("vmemmap_populate %lx..%lx, node %d\n", start, end, node); for (; start < end; start += page_size) { - void *p; + void *p = NULL; int rc; if (vmemmap_populated(start, page_size)) continue; + /* + * Allocate from the altmap first if we have one. This may + * fail due to alignment issues when using 16MB hugepages, so + * fall back to system memory if the altmap allocation fail. + */ if (altmap) p = altmap_alloc_block_buf(page_size, altmap); - else + if (!p) p = vmemmap_alloc_block_buf(page_size, node); if (!p) return -ENOMEM; @@ -255,8 +260,15 @@ void __ref vmemmap_free(unsigned long start, unsigned long end, { unsigned long page_size = 1 << mmu_psize_defs[mmu_vmemmap_psize].shift; unsigned long page_order = get_order(page_size); + unsigned long alt_start = ~0, alt_end = ~0; + unsigned long base_pfn; start = _ALIGN_DOWN(start, page_size); + if (altmap) { + alt_start = altmap->base_pfn; + alt_end = altmap->base_pfn + altmap->reserve + + altmap->free + altmap->alloc + altmap->align; + } pr_debug("vmemmap_free %lx...%lx\n", start, end); @@ -280,8 +292,9 @@ void __ref vmemmap_free(unsigned long start, unsigned long end, page = pfn_to_page(addr >> PAGE_SHIFT); section_base = pfn_to_page(vmemmap_section_start(start)); nr_pages = 1 << page_order; + base_pfn = PHYS_PFN(addr); - if (altmap) { + if (base_pfn >= alt_start && base_pfn < alt_end) { vmem_altmap_free(altmap, nr_pages); } else if (PageReserved(page)) { /* allocated from bootmem */ |