From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/m32r/include/asm/mmzone.h | 53 +++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 kernel/arch/m32r/include/asm/mmzone.h (limited to 'kernel/arch/m32r/include/asm/mmzone.h') diff --git a/kernel/arch/m32r/include/asm/mmzone.h b/kernel/arch/m32r/include/asm/mmzone.h new file mode 100644 index 000000000..115ced33f --- /dev/null +++ b/kernel/arch/m32r/include/asm/mmzone.h @@ -0,0 +1,53 @@ +/* + * Written by Pat Gaughen (gone@us.ibm.com) Mar 2002 + * + */ + +#ifndef _ASM_MMZONE_H_ +#define _ASM_MMZONE_H_ + +#include + +#ifdef CONFIG_DISCONTIGMEM + +extern struct pglist_data *node_data[]; +#define NODE_DATA(nid) (node_data[nid]) + +#define node_localnr(pfn, nid) ((pfn) - NODE_DATA(nid)->node_start_pfn) + +#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)) +/* + * pfn_valid should be made as fast as possible, and the current definition + * is valid for machines that are NUMA, but still contiguous, which is what + * is currently supported. A more generalised, but slower definition would + * be something like this - mbligh: + * ( pfn_to_pgdat(pfn) && ((pfn) < node_end_pfn(pfn_to_nid(pfn))) ) + */ +#if 1 /* M32R_FIXME */ +#define pfn_valid(pfn) (1) +#else +#define pfn_valid(pfn) ((pfn) < num_physpages) +#endif + +/* + * generic node memory support, the following assumptions apply: + */ + +static __inline__ int pfn_to_nid(unsigned long pfn) +{ + int node; + + for (node = 0 ; node < MAX_NUMNODES ; node++) + if (pfn >= node_start_pfn(node) && pfn < node_end_pfn(node)) + break; + + return node; +} + +static __inline__ struct pglist_data *pfn_to_pgdat(unsigned long pfn) +{ + return(NODE_DATA(pfn_to_nid(pfn))); +} + +#endif /* CONFIG_DISCONTIGMEM */ +#endif /* _ASM_MMZONE_H_ */ -- cgit 1.2.3-korg