sparc: join the remaining header files
With this commit all sparc64 header files are moved to asm-sparc.
The remaining files (71 files) were too different to be trivially
merged so divide them up in a _32.h and a _64.h file which
are both included from the file with no bit size.
The following script were used:
cd include
FILES=`wc -l asm-sparc64/*h | grep -v '^ 1' | cut -b 20-`
for FILE in ${FILES}; do
echo $FILE:
BASE=`echo $FILE | cut -d '.' -f 1`
FN32=${BASE}_32.h
FN64=${BASE}_64.h
GUARD=___ASM_SPARC_`echo $BASE | tr '-' '_' | tr [:lower:] [:upper:]`_H
git mv asm-sparc/$FILE asm-sparc/$FN32
git mv asm-sparc64/$FILE asm-sparc/$FN64
echo git mv done
printf "#ifndef %s\n" $GUARD > asm-sparc/$FILE
printf "#define %s\n" $GUARD >> asm-sparc/$FILE
printf "#if defined(__sparc__) && defined(__arch64__)\n" >> asm-sparc/$FILE
printf "#include <asm-sparc/%s>\n" $FN64 >> asm-sparc/$FILE
printf "#else\n" >> asm-sparc/$FILE
printf "#include <asm-sparc/%s>\n" $FN32 >> asm-sparc/$FILE
printf "#endif\n" >> asm-sparc/$FILE
printf "#endif\n" >> asm-sparc/$FILE
git add asm-sparc/$FILE
echo new file done
printf "#include <asm-sparc/%s>\n" $FILE > asm-sparc64/$FILE
git add asm-sparc64/$FILE
echo sparc64 file done
done
The guard contains three '_' to avoid conflict with existing guards.
In additing the two Kbuild files are emptied to avoid breaking
headers_* targets.
We will reintroduce the exported header files when the necessary
kbuild changes are merged.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc/tlb_64.h b/include/asm-sparc/tlb_64.h
new file mode 100644
index 0000000..ec81cde
--- /dev/null
+++ b/include/asm-sparc/tlb_64.h
@@ -0,0 +1,111 @@
+#ifndef _SPARC64_TLB_H
+#define _SPARC64_TLB_H
+
+#include <linux/swap.h>
+#include <linux/pagemap.h>
+#include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
+#include <asm/mmu_context.h>
+
+#define TLB_BATCH_NR 192
+
+/*
+ * For UP we don't need to worry about TLB flush
+ * and page free order so much..
+ */
+#ifdef CONFIG_SMP
+ #define FREE_PTE_NR 506
+ #define tlb_fast_mode(bp) ((bp)->pages_nr == ~0U)
+#else
+ #define FREE_PTE_NR 1
+ #define tlb_fast_mode(bp) 1
+#endif
+
+struct mmu_gather {
+ struct mm_struct *mm;
+ unsigned int pages_nr;
+ unsigned int need_flush;
+ unsigned int fullmm;
+ unsigned int tlb_nr;
+ unsigned long vaddrs[TLB_BATCH_NR];
+ struct page *pages[FREE_PTE_NR];
+};
+
+DECLARE_PER_CPU(struct mmu_gather, mmu_gathers);
+
+#ifdef CONFIG_SMP
+extern void smp_flush_tlb_pending(struct mm_struct *,
+ unsigned long, unsigned long *);
+#endif
+
+extern void __flush_tlb_pending(unsigned long, unsigned long, unsigned long *);
+extern void flush_tlb_pending(void);
+
+static inline struct mmu_gather *tlb_gather_mmu(struct mm_struct *mm, unsigned int full_mm_flush)
+{
+ struct mmu_gather *mp = &get_cpu_var(mmu_gathers);
+
+ BUG_ON(mp->tlb_nr);
+
+ mp->mm = mm;
+ mp->pages_nr = num_online_cpus() > 1 ? 0U : ~0U;
+ mp->fullmm = full_mm_flush;
+
+ return mp;
+}
+
+
+static inline void tlb_flush_mmu(struct mmu_gather *mp)
+{
+ if (mp->need_flush) {
+ free_pages_and_swap_cache(mp->pages, mp->pages_nr);
+ mp->pages_nr = 0;
+ mp->need_flush = 0;
+ }
+
+}
+
+#ifdef CONFIG_SMP
+extern void smp_flush_tlb_mm(struct mm_struct *mm);
+#define do_flush_tlb_mm(mm) smp_flush_tlb_mm(mm)
+#else
+#define do_flush_tlb_mm(mm) __flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT)
+#endif
+
+static inline void tlb_finish_mmu(struct mmu_gather *mp, unsigned long start, unsigned long end)
+{
+ tlb_flush_mmu(mp);
+
+ if (mp->fullmm)
+ mp->fullmm = 0;
+ else
+ flush_tlb_pending();
+
+ /* keep the page table cache within bounds */
+ check_pgt_cache();
+
+ put_cpu_var(mmu_gathers);
+}
+
+static inline void tlb_remove_page(struct mmu_gather *mp, struct page *page)
+{
+ if (tlb_fast_mode(mp)) {
+ free_page_and_swap_cache(page);
+ return;
+ }
+ mp->need_flush = 1;
+ mp->pages[mp->pages_nr++] = page;
+ if (mp->pages_nr >= FREE_PTE_NR)
+ tlb_flush_mmu(mp);
+}
+
+#define tlb_remove_tlb_entry(mp,ptep,addr) do { } while (0)
+#define pte_free_tlb(mp, ptepage) pte_free((mp)->mm, ptepage)
+#define pmd_free_tlb(mp, pmdp) pmd_free((mp)->mm, pmdp)
+#define pud_free_tlb(tlb,pudp) __pud_free_tlb(tlb,pudp)
+
+#define tlb_migrate_finish(mm) do { } while (0)
+#define tlb_start_vma(tlb, vma) do { } while (0)
+#define tlb_end_vma(tlb, vma) do { } while (0)
+
+#endif /* _SPARC64_TLB_H */