Quicklist support for sparc64
I ported this to sparc64 as per the patch below, tested on UP SunBlade1500 and 24 cpu Niagara T1000. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Andi Kleen <ak@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: William Lee Irwin III <wli@holomorphy.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -34,6 +34,10 @@ config MMU
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bool
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default y
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config QUICKLIST
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bool
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default y
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config STACKTRACE_SUPPORT
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bool
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default y
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@ -164,30 +164,6 @@ unsigned long sparc64_kern_sec_context __read_mostly;
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int bigkernel = 0;
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struct kmem_cache *pgtable_cache __read_mostly;
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static void zero_ctor(void *addr, struct kmem_cache *cache, unsigned long flags)
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{
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clear_page(addr);
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}
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extern void tsb_cache_init(void);
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void pgtable_cache_init(void)
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{
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pgtable_cache = kmem_cache_create("pgtable_cache",
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PAGE_SIZE, PAGE_SIZE,
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SLAB_HWCACHE_ALIGN |
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SLAB_MUST_HWCACHE_ALIGN,
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zero_ctor,
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NULL);
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if (!pgtable_cache) {
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prom_printf("Could not create pgtable_cache\n");
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prom_halt();
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}
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tsb_cache_init();
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}
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#ifdef CONFIG_DEBUG_DCFLUSH
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atomic_t dcpage_flushes = ATOMIC_INIT(0);
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#ifdef CONFIG_SMP
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@ -252,7 +252,7 @@ static const char *tsb_cache_names[8] = {
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"tsb_1MB",
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};
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void __init tsb_cache_init(void)
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void __init pgtable_cache_init(void)
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{
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unsigned long i;
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@ -6,6 +6,7 @@
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#include <linux/sched.h>
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#include <linux/mm.h>
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#include <linux/slab.h>
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#include <linux/quicklist.h>
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#include <asm/spitfire.h>
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#include <asm/cpudata.h>
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@ -13,52 +14,50 @@
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#include <asm/page.h>
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/* Page table allocation/freeing. */
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extern struct kmem_cache *pgtable_cache;
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static inline pgd_t *pgd_alloc(struct mm_struct *mm)
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{
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return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
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return quicklist_alloc(0, GFP_KERNEL, NULL);
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}
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static inline void pgd_free(pgd_t *pgd)
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{
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kmem_cache_free(pgtable_cache, pgd);
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quicklist_free(0, NULL, pgd);
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}
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#define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD)
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static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
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{
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return kmem_cache_alloc(pgtable_cache,
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GFP_KERNEL|__GFP_REPEAT);
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return quicklist_alloc(0, GFP_KERNEL, NULL);
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}
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static inline void pmd_free(pmd_t *pmd)
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{
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kmem_cache_free(pgtable_cache, pmd);
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quicklist_free(0, NULL, pmd);
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}
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static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
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unsigned long address)
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{
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return kmem_cache_alloc(pgtable_cache,
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GFP_KERNEL|__GFP_REPEAT);
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return quicklist_alloc(0, GFP_KERNEL, NULL);
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}
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static inline struct page *pte_alloc_one(struct mm_struct *mm,
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unsigned long address)
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{
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return virt_to_page(pte_alloc_one_kernel(mm, address));
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void *pg = quicklist_alloc(0, GFP_KERNEL, NULL);
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return pg ? virt_to_page(pg) : NULL;
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}
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static inline void pte_free_kernel(pte_t *pte)
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{
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kmem_cache_free(pgtable_cache, pte);
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quicklist_free(0, NULL, pte);
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}
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static inline void pte_free(struct page *ptepage)
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{
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pte_free_kernel(page_address(ptepage));
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quicklist_free_page(0, NULL, ptepage);
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}
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@ -66,6 +65,9 @@ static inline void pte_free(struct page *ptepage)
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#define pmd_populate(MM,PMD,PTE_PAGE) \
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pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE))
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#define check_pgt_cache() do { } while (0)
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static inline void check_pgt_cache(void)
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{
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quicklist_trim(0, NULL, 25, 16);
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}
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#endif /* _SPARC64_PGALLOC_H */
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