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 <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

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 <yunhong.jiang@intel.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/kernel/arch/sparc/include/asm/pgalloc_32.h b/kernel/arch/sparc/include/asm/pgalloc_32.h
new file mode 100644
index 000000000..a3890da94
--- /dev/null
+++ b/kernel/arch/sparc/include/asm/pgalloc_32.h
@@ -0,0 +1,79 @@
+#ifndef _SPARC_PGALLOC_H
+#define _SPARC_PGALLOC_H
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+
+#include <asm/pgtsrmmu.h>
+#include <asm/pgtable.h>
+#include <asm/vaddrs.h>
+#include <asm/page.h>
+
+struct page;
+
+void *srmmu_get_nocache(int size, int align);
+void srmmu_free_nocache(void *addr, int size);
+
+extern struct resource sparc_iomap;
+
+#define check_pgt_cache()	do { } while (0)
+
+pgd_t *get_pgd_fast(void);
+static inline void free_pgd_fast(pgd_t *pgd)
+{
+	srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE);
+}
+
+#define pgd_free(mm, pgd)	free_pgd_fast(pgd)
+#define pgd_alloc(mm)	get_pgd_fast()
+
+static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
+{
+	unsigned long pa = __nocache_pa((unsigned long)pmdp);
+
+	set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (pa >> 4)));
+}
+
+#define pgd_populate(MM, PGD, PMD)      pgd_set(PGD, PMD)
+
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
+				   unsigned long address)
+{
+	return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
+				 SRMMU_PMD_TABLE_SIZE);
+}
+
+static inline void free_pmd_fast(pmd_t * pmd)
+{
+	srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE);
+}
+
+#define pmd_free(mm, pmd)		free_pmd_fast(pmd)
+#define __pmd_free_tlb(tlb, pmd, addr)	pmd_free((tlb)->mm, pmd)
+
+void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
+#define pmd_pgtable(pmd) pmd_page(pmd)
+
+void pmd_set(pmd_t *pmdp, pte_t *ptep);
+#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
+
+pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
+
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
+					  unsigned long address)
+{
+	return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
+}
+
+
+static inline void free_pte_fast(pte_t *pte)
+{
+	srmmu_free_nocache(pte, PTE_SIZE);
+}
+
+#define pte_free_kernel(mm, pte)	free_pte_fast(pte)
+
+void pte_free(struct mm_struct * mm, pgtable_t pte);
+#define __pte_free_tlb(tlb, pte, addr)	pte_free((tlb)->mm, pte)
+
+#endif /* _SPARC_PGALLOC_H */