#include <asm/turbosparc.h>
#include <asm/leon.h>
-#include <asm/btfixup.h>
-
enum mbus_module srmmu_modtype;
static unsigned int hwbug_bitmask;
int vac_cache_size;
int vac_line_size;
+struct ctx_list *ctx_list_pool;
+struct ctx_list ctx_free;
+struct ctx_list ctx_used;
+
extern struct resource sparc_iomap;
extern unsigned long last_valid_pfn;
-extern unsigned long page_kernel;
-
static pgd_t *srmmu_swapper_pg_dir;
+const struct sparc32_cachetlb_ops *sparc32_cachetlb_ops;
+
#ifdef CONFIG_SMP
+const struct sparc32_cachetlb_ops *local_ops;
+
#define FLUSH_BEGIN(mm)
#define FLUSH_END
#else
-#define FLUSH_BEGIN(mm) if((mm)->context != NO_CONTEXT) {
+#define FLUSH_BEGIN(mm) if ((mm)->context != NO_CONTEXT) {
#define FLUSH_END }
#endif
-BTFIXUPDEF_CALL(void, flush_page_for_dma, unsigned long)
-#define flush_page_for_dma(page) BTFIXUP_CALL(flush_page_for_dma)(page)
-
int flush_page_for_dma_global = 1;
-#ifdef CONFIG_SMP
-BTFIXUPDEF_CALL(void, local_flush_page_for_dma, unsigned long)
-#define local_flush_page_for_dma(page) BTFIXUP_CALL(local_flush_page_for_dma)(page)
-#endif
-
char *srmmu_name;
ctxd_t *srmmu_ctx_table_phys;
static int is_hypersparc;
-/*
- * In general all page table modifications should use the V8 atomic
- * swap instruction. This insures the mmu and the cpu are in sync
- * with respect to ref/mod bits in the page tables.
- */
-static inline unsigned long srmmu_swap(unsigned long *addr, unsigned long value)
-{
- __asm__ __volatile__("swap [%2], %0" : "=&r" (value) : "0" (value), "r" (addr));
- return value;
-}
-
-static inline void srmmu_set_pte(pte_t *ptep, pte_t pteval)
-{
- srmmu_swap((unsigned long *)ptep, pte_val(pteval));
-}
-
-/* The very generic SRMMU page table operations. */
-static inline int srmmu_device_memory(unsigned long x)
-{
- return ((x & 0xF0000000) != 0);
-}
-
static int srmmu_cache_pagetables;
/* these will be initialized in srmmu_nocache_calcsize() */
void *srmmu_nocache_bitmap;
static struct bit_map srmmu_nocache_map;
-static unsigned long srmmu_pte_pfn(pte_t pte)
-{
- if (srmmu_device_memory(pte_val(pte))) {
- /* Just return something that will cause
- * pfn_valid() to return false. This makes
- * copy_one_pte() to just directly copy to
- * PTE over.
- */
- return ~0UL;
- }
- return (pte_val(pte) & SRMMU_PTE_PMASK) >> (PAGE_SHIFT-4);
-}
-
-static struct page *srmmu_pmd_page(pmd_t pmd)
-{
-
- if (srmmu_device_memory(pmd_val(pmd)))
- BUG();
- return pfn_to_page((pmd_val(pmd) & SRMMU_PTD_PMASK) >> (PAGE_SHIFT-4));
-}
-
-static inline unsigned long srmmu_pgd_page(pgd_t pgd)
-{ return srmmu_device_memory(pgd_val(pgd))?~0:(unsigned long)__nocache_va((pgd_val(pgd) & SRMMU_PTD_PMASK) << 4); }
-
-
static inline int srmmu_pte_none(pte_t pte)
{ return !(pte_val(pte) & 0xFFFFFFF); }
-static inline int srmmu_pte_present(pte_t pte)
-{ return ((pte_val(pte) & SRMMU_ET_MASK) == SRMMU_ET_PTE); }
-
-static inline void srmmu_pte_clear(pte_t *ptep)
-{ srmmu_set_pte(ptep, __pte(0)); }
-
static inline int srmmu_pmd_none(pmd_t pmd)
{ return !(pmd_val(pmd) & 0xFFFFFFF); }
-static inline int srmmu_pmd_bad(pmd_t pmd)
-{ return (pmd_val(pmd) & SRMMU_ET_MASK) != SRMMU_ET_PTD; }
-
-static inline int srmmu_pmd_present(pmd_t pmd)
-{ return ((pmd_val(pmd) & SRMMU_ET_MASK) == SRMMU_ET_PTD); }
-
-static inline void srmmu_pmd_clear(pmd_t *pmdp) {
- int i;
- for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++)
- srmmu_set_pte((pte_t *)&pmdp->pmdv[i], __pte(0));
-}
-
-static inline int srmmu_pgd_none(pgd_t pgd)
-{ return !(pgd_val(pgd) & 0xFFFFFFF); }
-
-static inline int srmmu_pgd_bad(pgd_t pgd)
-{ return (pgd_val(pgd) & SRMMU_ET_MASK) != SRMMU_ET_PTD; }
-
-static inline int srmmu_pgd_present(pgd_t pgd)
-{ return ((pgd_val(pgd) & SRMMU_ET_MASK) == SRMMU_ET_PTD); }
-
-static inline void srmmu_pgd_clear(pgd_t * pgdp)
-{ srmmu_set_pte((pte_t *)pgdp, __pte(0)); }
-
static inline pte_t srmmu_pte_wrprotect(pte_t pte)
{ return __pte(pte_val(pte) & ~SRMMU_WRITE);}
static inline pte_t srmmu_pte_mkold(pte_t pte)
{ return __pte(pte_val(pte) & ~SRMMU_REF);}
-static inline pte_t srmmu_pte_mkwrite(pte_t pte)
-{ return __pte(pte_val(pte) | SRMMU_WRITE);}
-
-static inline pte_t srmmu_pte_mkdirty(pte_t pte)
-{ return __pte(pte_val(pte) | SRMMU_DIRTY);}
-
-static inline pte_t srmmu_pte_mkyoung(pte_t pte)
-{ return __pte(pte_val(pte) | SRMMU_REF);}
-
-/*
- * Conversion functions: convert a page and protection to a page entry,
- * and a page entry and page directory to the page they refer to.
- */
-static pte_t srmmu_mk_pte(struct page *page, pgprot_t pgprot)
-{ return __pte((page_to_pfn(page) << (PAGE_SHIFT-4)) | pgprot_val(pgprot)); }
-
-static pte_t srmmu_mk_pte_phys(unsigned long page, pgprot_t pgprot)
-{ return __pte(((page) >> 4) | pgprot_val(pgprot)); }
-
-static pte_t srmmu_mk_pte_io(unsigned long page, pgprot_t pgprot, int space)
-{ return __pte(((page) >> 4) | (space << 28) | pgprot_val(pgprot)); }
-
/* XXX should we hyper_flush_whole_icache here - Anton */
static inline void srmmu_ctxd_set(ctxd_t *ctxp, pgd_t *pgdp)
-{ srmmu_set_pte((pte_t *)ctxp, (SRMMU_ET_PTD | (__nocache_pa((unsigned long) pgdp) >> 4))); }
-
-static inline void srmmu_pgd_set(pgd_t * pgdp, pmd_t * pmdp)
-{ srmmu_set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (__nocache_pa((unsigned long) pmdp) >> 4))); }
+{ set_pte((pte_t *)ctxp, (SRMMU_ET_PTD | (__nocache_pa((unsigned long) pgdp) >> 4))); }
-static void srmmu_pmd_set(pmd_t *pmdp, pte_t *ptep)
+void pmd_set(pmd_t *pmdp, pte_t *ptep)
{
unsigned long ptp; /* Physical address, shifted right by 4 */
int i;
ptp = __nocache_pa((unsigned long) ptep) >> 4;
for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++) {
- srmmu_set_pte((pte_t *)&pmdp->pmdv[i], SRMMU_ET_PTD | ptp);
+ set_pte((pte_t *)&pmdp->pmdv[i], SRMMU_ET_PTD | ptp);
ptp += (SRMMU_REAL_PTRS_PER_PTE*sizeof(pte_t) >> 4);
}
}
-static void srmmu_pmd_populate(pmd_t *pmdp, struct page *ptep)
+void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep)
{
unsigned long ptp; /* Physical address, shifted right by 4 */
int i;
ptp = page_to_pfn(ptep) << (PAGE_SHIFT-4); /* watch for overflow */
for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++) {
- srmmu_set_pte((pte_t *)&pmdp->pmdv[i], SRMMU_ET_PTD | ptp);
+ set_pte((pte_t *)&pmdp->pmdv[i], SRMMU_ET_PTD | ptp);
ptp += (SRMMU_REAL_PTRS_PER_PTE*sizeof(pte_t) >> 4);
}
}
static inline pgd_t *srmmu_pgd_offset(struct mm_struct * mm, unsigned long address)
{ return mm->pgd + (address >> SRMMU_PGDIR_SHIFT); }
-/* Find an entry in the second-level page table.. */
-static inline pmd_t *srmmu_pmd_offset(pgd_t * dir, unsigned long address)
-{
- return (pmd_t *) srmmu_pgd_page(*dir) +
- ((address >> PMD_SHIFT) & (PTRS_PER_PMD - 1));
-}
-
/* Find an entry in the third-level page table.. */
-static inline pte_t *srmmu_pte_offset(pmd_t * dir, unsigned long address)
+pte_t *pte_offset_kernel(pmd_t * dir, unsigned long address)
{
void *pte;
((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1));
}
-static unsigned long srmmu_swp_type(swp_entry_t entry)
-{
- return (entry.val >> SRMMU_SWP_TYPE_SHIFT) & SRMMU_SWP_TYPE_MASK;
-}
-
-static unsigned long srmmu_swp_offset(swp_entry_t entry)
-{
- return (entry.val >> SRMMU_SWP_OFF_SHIFT) & SRMMU_SWP_OFF_MASK;
-}
-
-static swp_entry_t srmmu_swp_entry(unsigned long type, unsigned long offset)
-{
- return (swp_entry_t) {
- (type & SRMMU_SWP_TYPE_MASK) << SRMMU_SWP_TYPE_SHIFT
- | (offset & SRMMU_SWP_OFF_MASK) << SRMMU_SWP_OFF_SHIFT };
-}
-
/*
* size: bytes to allocate in the nocache area.
* align: bytes, number to align at.
return (SRMMU_NOCACHE_VADDR + (offset << SRMMU_NOCACHE_BITMAP_SHIFT));
}
-static unsigned long srmmu_get_nocache(int size, int align)
+unsigned long srmmu_get_nocache(int size, int align)
{
unsigned long tmp;
return tmp;
}
-static void srmmu_free_nocache(unsigned long vaddr, int size)
+void srmmu_free_nocache(unsigned long vaddr, int size)
{
int offset;
while (vaddr < srmmu_nocache_end) {
pgd = pgd_offset_k(vaddr);
- pmd = srmmu_pmd_offset(__nocache_fix(pgd), vaddr);
- pte = srmmu_pte_offset(__nocache_fix(pmd), vaddr);
+ pmd = pmd_offset(__nocache_fix(pgd), vaddr);
+ pte = pte_offset_kernel(__nocache_fix(pmd), vaddr);
pteval = ((paddr >> 4) | SRMMU_ET_PTE | SRMMU_PRIV);
if (srmmu_cache_pagetables)
pteval |= SRMMU_CACHE;
- srmmu_set_pte(__nocache_fix(pte), __pte(pteval));
+ set_pte(__nocache_fix(pte), __pte(pteval));
vaddr += PAGE_SIZE;
paddr += PAGE_SIZE;
flush_tlb_all();
}
-static inline pgd_t *srmmu_get_pgd_fast(void)
+pgd_t *get_pgd_fast(void)
{
pgd_t *pgd = NULL;
return pgd;
}
-static void srmmu_free_pgd_fast(pgd_t *pgd)
-{
- srmmu_free_nocache((unsigned long)pgd, SRMMU_PGD_TABLE_SIZE);
-}
-
-static pmd_t *srmmu_pmd_alloc_one(struct mm_struct *mm, unsigned long address)
-{
- return (pmd_t *)srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE);
-}
-
-static void srmmu_pmd_free(pmd_t * pmd)
-{
- srmmu_free_nocache((unsigned long)pmd, SRMMU_PMD_TABLE_SIZE);
-}
-
/*
* Hardware needs alignment to 256 only, but we align to whole page size
* to reduce fragmentation problems due to the buddy principle.
* Alignments up to the page size are the same for physical and virtual
* addresses of the nocache area.
*/
-static pte_t *
-srmmu_pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
-{
- return (pte_t *)srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
-}
-
-static pgtable_t
-srmmu_pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
unsigned long pte;
struct page *page;
- if ((pte = (unsigned long)srmmu_pte_alloc_one_kernel(mm, address)) == 0)
+ if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0)
return NULL;
page = pfn_to_page( __nocache_pa(pte) >> PAGE_SHIFT );
pgtable_page_ctor(page);
return page;
}
-static void srmmu_free_pte_fast(pte_t *pte)
-{
- srmmu_free_nocache((unsigned long)pte, PTE_SIZE);
-}
-
-static void srmmu_pte_free(pgtable_t pte)
+void pte_free(struct mm_struct *mm, pgtable_t pte)
{
unsigned long p;
}
-static void srmmu_switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
- struct task_struct *tsk, int cpu)
+void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
+ struct task_struct *tsk)
{
if(mm->context == NO_CONTEXT) {
spin_lock(&srmmu_context_spinlock);
physaddr &= PAGE_MASK;
pgdp = pgd_offset_k(virt_addr);
- pmdp = srmmu_pmd_offset(pgdp, virt_addr);
- ptep = srmmu_pte_offset(pmdp, virt_addr);
+ pmdp = pmd_offset(pgdp, virt_addr);
+ ptep = pte_offset_kernel(pmdp, virt_addr);
tmp = (physaddr >> 4) | SRMMU_ET_PTE;
/*
tmp |= (bus_type << 28);
tmp |= SRMMU_PRIV;
__flush_page_to_ram(virt_addr);
- srmmu_set_pte(ptep, __pte(tmp));
+ set_pte(ptep, __pte(tmp));
}
-static void srmmu_mapiorange(unsigned int bus, unsigned long xpa,
- unsigned long xva, unsigned int len)
+void srmmu_mapiorange(unsigned int bus, unsigned long xpa,
+ unsigned long xva, unsigned int len)
{
while (len != 0) {
len -= PAGE_SIZE;
pte_t *ptep;
pgdp = pgd_offset_k(virt_addr);
- pmdp = srmmu_pmd_offset(pgdp, virt_addr);
- ptep = srmmu_pte_offset(pmdp, virt_addr);
+ pmdp = pmd_offset(pgdp, virt_addr);
+ ptep = pte_offset_kernel(pmdp, virt_addr);
/* No need to flush uncacheable page. */
- srmmu_pte_clear(ptep);
+ __pte_clear(ptep);
}
-static void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len)
+void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len)
{
while (len != 0) {
len -= PAGE_SIZE;
* pool. As a side effect we are putting a little too much pressure
* on the gfp() subsystem. This setup also makes the logic of the
* iommu mapping code a lot easier as we can transparently handle
- * mappings on the kernel stack without any special code as we did
- * need on the sun4c.
+ * mappings on the kernel stack without any special code.
*/
-static struct thread_info *srmmu_alloc_thread_info_node(int node)
+struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node)
{
struct thread_info *ret;
return ret;
}
-static void srmmu_free_thread_info(struct thread_info *ti)
+void free_thread_info(struct thread_info *ti)
{
free_pages((unsigned long)ti, THREAD_INFO_ORDER);
}
extern void tsunami_flush_tlb_page(struct vm_area_struct *vma, unsigned long page);
extern void tsunami_setup_blockops(void);
-/*
- * Workaround, until we find what's going on with Swift. When low on memory,
- * it sometimes loops in fault/handle_mm_fault incl. flush_tlb_page to find
- * out it is already in page tables/ fault again on the same instruction.
- * I really don't understand it, have checked it and contexts
- * are right, flush_tlb_all is done as well, and it faults again...
- * Strange. -jj
- *
- * The following code is a deadwood that may be necessary when
- * we start to make precise page flushes again. --zaitcev
- */
-static void swift_update_mmu_cache(struct vm_area_struct * vma, unsigned long address, pte_t *ptep)
-{
-#if 0
- static unsigned long last;
- unsigned int val;
- /* unsigned int n; */
-
- if (address == last) {
- val = srmmu_hwprobe(address);
- if (val != 0 && pte_val(*ptep) != val) {
- printk("swift_update_mmu_cache: "
- "addr %lx put %08x probed %08x from %p\n",
- address, pte_val(*ptep), val,
- __builtin_return_address(0));
- srmmu_flush_whole_tlb();
- }
- }
- last = address;
-#endif
-}
-
/* swift.S */
extern void swift_flush_cache_all(void);
extern void swift_flush_cache_mm(struct mm_struct *mm);
* with respect to cache coherency.
*/
-/* Cypress flushes. */
-static void cypress_flush_cache_all(void)
-{
- volatile unsigned long cypress_sucks;
- unsigned long faddr, tagval;
-
- flush_user_windows();
- for(faddr = 0; faddr < 0x10000; faddr += 0x20) {
- __asm__ __volatile__("lda [%1 + %2] %3, %0\n\t" :
- "=r" (tagval) :
- "r" (faddr), "r" (0x40000),
- "i" (ASI_M_DATAC_TAG));
-
- /* If modified and valid, kick it. */
- if((tagval & 0x60) == 0x60)
- cypress_sucks = *(unsigned long *)(0xf0020000 + faddr);
- }
-}
-
-static void cypress_flush_cache_mm(struct mm_struct *mm)
-{
- register unsigned long a, b, c, d, e, f, g;
- unsigned long flags, faddr;
- int octx;
-
- FLUSH_BEGIN(mm)
- flush_user_windows();
- local_irq_save(flags);
- octx = srmmu_get_context();
- srmmu_set_context(mm->context);
- a = 0x20; b = 0x40; c = 0x60;
- d = 0x80; e = 0xa0; f = 0xc0; g = 0xe0;
-
- faddr = (0x10000 - 0x100);
- goto inside;
- do {
- faddr -= 0x100;
- inside:
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- "sta %%g0, [%0 + %2] %1\n\t"
- "sta %%g0, [%0 + %3] %1\n\t"
- "sta %%g0, [%0 + %4] %1\n\t"
- "sta %%g0, [%0 + %5] %1\n\t"
- "sta %%g0, [%0 + %6] %1\n\t"
- "sta %%g0, [%0 + %7] %1\n\t"
- "sta %%g0, [%0 + %8] %1\n\t" : :
- "r" (faddr), "i" (ASI_M_FLUSH_CTX),
- "r" (a), "r" (b), "r" (c), "r" (d),
- "r" (e), "r" (f), "r" (g));
- } while(faddr);
- srmmu_set_context(octx);
- local_irq_restore(flags);
- FLUSH_END
-}
-
-static void cypress_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
-{
- struct mm_struct *mm = vma->vm_mm;
- register unsigned long a, b, c, d, e, f, g;
- unsigned long flags, faddr;
- int octx;
-
- FLUSH_BEGIN(mm)
- flush_user_windows();
- local_irq_save(flags);
- octx = srmmu_get_context();
- srmmu_set_context(mm->context);
- a = 0x20; b = 0x40; c = 0x60;
- d = 0x80; e = 0xa0; f = 0xc0; g = 0xe0;
-
- start &= SRMMU_REAL_PMD_MASK;
- while(start < end) {
- faddr = (start + (0x10000 - 0x100));
- goto inside;
- do {
- faddr -= 0x100;
- inside:
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- "sta %%g0, [%0 + %2] %1\n\t"
- "sta %%g0, [%0 + %3] %1\n\t"
- "sta %%g0, [%0 + %4] %1\n\t"
- "sta %%g0, [%0 + %5] %1\n\t"
- "sta %%g0, [%0 + %6] %1\n\t"
- "sta %%g0, [%0 + %7] %1\n\t"
- "sta %%g0, [%0 + %8] %1\n\t" : :
- "r" (faddr),
- "i" (ASI_M_FLUSH_SEG),
- "r" (a), "r" (b), "r" (c), "r" (d),
- "r" (e), "r" (f), "r" (g));
- } while (faddr != start);
- start += SRMMU_REAL_PMD_SIZE;
- }
- srmmu_set_context(octx);
- local_irq_restore(flags);
- FLUSH_END
-}
-
-static void cypress_flush_cache_page(struct vm_area_struct *vma, unsigned long page)
-{
- register unsigned long a, b, c, d, e, f, g;
- struct mm_struct *mm = vma->vm_mm;
- unsigned long flags, line;
- int octx;
-
- FLUSH_BEGIN(mm)
- flush_user_windows();
- local_irq_save(flags);
- octx = srmmu_get_context();
- srmmu_set_context(mm->context);
- a = 0x20; b = 0x40; c = 0x60;
- d = 0x80; e = 0xa0; f = 0xc0; g = 0xe0;
-
- page &= PAGE_MASK;
- line = (page + PAGE_SIZE) - 0x100;
- goto inside;
- do {
- line -= 0x100;
- inside:
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- "sta %%g0, [%0 + %2] %1\n\t"
- "sta %%g0, [%0 + %3] %1\n\t"
- "sta %%g0, [%0 + %4] %1\n\t"
- "sta %%g0, [%0 + %5] %1\n\t"
- "sta %%g0, [%0 + %6] %1\n\t"
- "sta %%g0, [%0 + %7] %1\n\t"
- "sta %%g0, [%0 + %8] %1\n\t" : :
- "r" (line),
- "i" (ASI_M_FLUSH_PAGE),
- "r" (a), "r" (b), "r" (c), "r" (d),
- "r" (e), "r" (f), "r" (g));
- } while(line != page);
- srmmu_set_context(octx);
- local_irq_restore(flags);
- FLUSH_END
-}
-
-/* Cypress is copy-back, at least that is how we configure it. */
-static void cypress_flush_page_to_ram(unsigned long page)
-{
- register unsigned long a, b, c, d, e, f, g;
- unsigned long line;
-
- a = 0x20; b = 0x40; c = 0x60; d = 0x80; e = 0xa0; f = 0xc0; g = 0xe0;
- page &= PAGE_MASK;
- line = (page + PAGE_SIZE) - 0x100;
- goto inside;
- do {
- line -= 0x100;
- inside:
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- "sta %%g0, [%0 + %2] %1\n\t"
- "sta %%g0, [%0 + %3] %1\n\t"
- "sta %%g0, [%0 + %4] %1\n\t"
- "sta %%g0, [%0 + %5] %1\n\t"
- "sta %%g0, [%0 + %6] %1\n\t"
- "sta %%g0, [%0 + %7] %1\n\t"
- "sta %%g0, [%0 + %8] %1\n\t" : :
- "r" (line),
- "i" (ASI_M_FLUSH_PAGE),
- "r" (a), "r" (b), "r" (c), "r" (d),
- "r" (e), "r" (f), "r" (g));
- } while(line != page);
-}
-
-/* Cypress is also IO cache coherent. */
-static void cypress_flush_page_for_dma(unsigned long page)
-{
-}
-
-/* Cypress has unified L2 VIPT, from which both instructions and data
- * are stored. It does not have an onboard icache of any sort, therefore
- * no flush is necessary.
- */
-static void cypress_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr)
-{
-}
-
-static void cypress_flush_tlb_all(void)
-{
- srmmu_flush_whole_tlb();
-}
-
-static void cypress_flush_tlb_mm(struct mm_struct *mm)
-{
- FLUSH_BEGIN(mm)
- __asm__ __volatile__(
- "lda [%0] %3, %%g5\n\t"
- "sta %2, [%0] %3\n\t"
- "sta %%g0, [%1] %4\n\t"
- "sta %%g5, [%0] %3\n"
- : /* no outputs */
- : "r" (SRMMU_CTX_REG), "r" (0x300), "r" (mm->context),
- "i" (ASI_M_MMUREGS), "i" (ASI_M_FLUSH_PROBE)
- : "g5");
- FLUSH_END
-}
-
-static void cypress_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
-{
- struct mm_struct *mm = vma->vm_mm;
- unsigned long size;
-
- FLUSH_BEGIN(mm)
- start &= SRMMU_PGDIR_MASK;
- size = SRMMU_PGDIR_ALIGN(end) - start;
- __asm__ __volatile__(
- "lda [%0] %5, %%g5\n\t"
- "sta %1, [%0] %5\n"
- "1:\n\t"
- "subcc %3, %4, %3\n\t"
- "bne 1b\n\t"
- " sta %%g0, [%2 + %3] %6\n\t"
- "sta %%g5, [%0] %5\n"
- : /* no outputs */
- : "r" (SRMMU_CTX_REG), "r" (mm->context), "r" (start | 0x200),
- "r" (size), "r" (SRMMU_PGDIR_SIZE), "i" (ASI_M_MMUREGS),
- "i" (ASI_M_FLUSH_PROBE)
- : "g5", "cc");
- FLUSH_END
-}
-
-static void cypress_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
- struct mm_struct *mm = vma->vm_mm;
-
- FLUSH_BEGIN(mm)
- __asm__ __volatile__(
- "lda [%0] %3, %%g5\n\t"
- "sta %1, [%0] %3\n\t"
- "sta %%g0, [%2] %4\n\t"
- "sta %%g5, [%0] %3\n"
- : /* no outputs */
- : "r" (SRMMU_CTX_REG), "r" (mm->context), "r" (page & PAGE_MASK),
- "i" (ASI_M_MMUREGS), "i" (ASI_M_FLUSH_PROBE)
- : "g5");
- FLUSH_END
-}
-
/* viking.S */
extern void viking_flush_cache_all(void);
extern void viking_flush_cache_mm(struct mm_struct *mm);
while(start < end) {
pgdp = pgd_offset_k(start);
- if(srmmu_pgd_none(*(pgd_t *)__nocache_fix(pgdp))) {
+ if (pgd_none(*(pgd_t *)__nocache_fix(pgdp))) {
pmdp = (pmd_t *) __srmmu_get_nocache(
SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE);
if (pmdp == NULL)
early_pgtable_allocfail("pmd");
memset(__nocache_fix(pmdp), 0, SRMMU_PMD_TABLE_SIZE);
- srmmu_pgd_set(__nocache_fix(pgdp), pmdp);
+ pgd_set(__nocache_fix(pgdp), pmdp);
}
- pmdp = srmmu_pmd_offset(__nocache_fix(pgdp), start);
+ pmdp = pmd_offset(__nocache_fix(pgdp), start);
if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) {
ptep = (pte_t *)__srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
if (ptep == NULL)
early_pgtable_allocfail("pte");
memset(__nocache_fix(ptep), 0, PTE_SIZE);
- srmmu_pmd_set(__nocache_fix(pmdp), ptep);
+ pmd_set(__nocache_fix(pmdp), ptep);
}
if (start > (0xffffffffUL - PMD_SIZE))
break;
while(start < end) {
pgdp = pgd_offset_k(start);
- if(srmmu_pgd_none(*pgdp)) {
+ if (pgd_none(*pgdp)) {
pmdp = (pmd_t *)__srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE);
if (pmdp == NULL)
early_pgtable_allocfail("pmd");
memset(pmdp, 0, SRMMU_PMD_TABLE_SIZE);
- srmmu_pgd_set(pgdp, pmdp);
+ pgd_set(pgdp, pmdp);
}
- pmdp = srmmu_pmd_offset(pgdp, start);
+ pmdp = pmd_offset(pgdp, start);
if(srmmu_pmd_none(*pmdp)) {
ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE,
PTE_SIZE);
if (ptep == NULL)
early_pgtable_allocfail("pte");
memset(ptep, 0, PTE_SIZE);
- srmmu_pmd_set(pmdp, ptep);
+ pmd_set(pmdp, ptep);
}
if (start > (0xffffffffUL - PMD_SIZE))
break;
start += SRMMU_PGDIR_SIZE;
continue;
}
- if(srmmu_pgd_none(*(pgd_t *)__nocache_fix(pgdp))) {
+ if (pgd_none(*(pgd_t *)__nocache_fix(pgdp))) {
pmdp = (pmd_t *)__srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE);
if (pmdp == NULL)
early_pgtable_allocfail("pmd");
memset(__nocache_fix(pmdp), 0, SRMMU_PMD_TABLE_SIZE);
- srmmu_pgd_set(__nocache_fix(pgdp), pmdp);
+ pgd_set(__nocache_fix(pgdp), pmdp);
}
- pmdp = srmmu_pmd_offset(__nocache_fix(pgdp), start);
+ pmdp = pmd_offset(__nocache_fix(pgdp), start);
if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) {
ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE,
PTE_SIZE);
if (ptep == NULL)
early_pgtable_allocfail("pte");
memset(__nocache_fix(ptep), 0, PTE_SIZE);
- srmmu_pmd_set(__nocache_fix(pmdp), ptep);
+ pmd_set(__nocache_fix(pmdp), ptep);
}
if(what == 1) {
/*
start += SRMMU_REAL_PMD_SIZE;
continue;
}
- ptep = srmmu_pte_offset(__nocache_fix(pmdp), start);
+ ptep = pte_offset_kernel(__nocache_fix(pmdp), start);
*(pte_t *)__nocache_fix(ptep) = __pte(prompte);
start += PAGE_SIZE;
}
for (i = 0; sp_banks[i].num_bytes != 0; i++) {
map_spbank((unsigned long)__va(sp_banks[i].base_addr), i);
}
-
- BTFIXUPSET_SIMM13(user_ptrs_per_pgd, PAGE_OFFSET / SRMMU_PGDIR_SIZE);
}
/* Paging initialization on the Sparc Reference MMU. */
srmmu_set_ctable_ptr((unsigned long)srmmu_ctx_table_phys);
#ifdef CONFIG_SMP
/* Stop from hanging here... */
- local_flush_tlb_all();
+ local_ops->tlb_all();
#else
flush_tlb_all();
#endif
srmmu_allocate_ptable_skeleton(PKMAP_BASE, PKMAP_END);
pgd = pgd_offset_k(PKMAP_BASE);
- pmd = srmmu_pmd_offset(pgd, PKMAP_BASE);
- pte = srmmu_pte_offset(pmd, PKMAP_BASE);
+ pmd = pmd_offset(pgd, PKMAP_BASE);
+ pte = pte_offset_kernel(pmd, PKMAP_BASE);
pkmap_page_table = pte;
flush_cache_all();
}
}
-static void srmmu_mmu_info(struct seq_file *m)
+void mmu_info(struct seq_file *m)
{
seq_printf(m,
"MMU type\t: %s\n"
srmmu_nocache_map.used << SRMMU_NOCACHE_BITMAP_SHIFT);
}
-static void srmmu_update_mmu_cache(struct vm_area_struct * vma, unsigned long address, pte_t pte)
-{
-}
-
-static void srmmu_destroy_context(struct mm_struct *mm)
+void destroy_context(struct mm_struct *mm)
{
if(mm->context != NO_CONTEXT) {
clear = srmmu_get_fstatus();
}
+static const struct sparc32_cachetlb_ops hypersparc_ops = {
+ .cache_all = hypersparc_flush_cache_all,
+ .cache_mm = hypersparc_flush_cache_mm,
+ .cache_page = hypersparc_flush_cache_page,
+ .cache_range = hypersparc_flush_cache_range,
+ .tlb_all = hypersparc_flush_tlb_all,
+ .tlb_mm = hypersparc_flush_tlb_mm,
+ .tlb_page = hypersparc_flush_tlb_page,
+ .tlb_range = hypersparc_flush_tlb_range,
+ .page_to_ram = hypersparc_flush_page_to_ram,
+ .sig_insns = hypersparc_flush_sig_insns,
+ .page_for_dma = hypersparc_flush_page_for_dma,
+};
+
static void __init init_hypersparc(void)
{
srmmu_name = "ROSS HyperSparc";
init_vac_layout();
is_hypersparc = 1;
-
- BTFIXUPSET_CALL(pte_clear, srmmu_pte_clear, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pmd_clear, srmmu_pmd_clear, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pgd_clear, srmmu_pgd_clear, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_all, hypersparc_flush_cache_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_mm, hypersparc_flush_cache_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_range, hypersparc_flush_cache_range, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_page, hypersparc_flush_cache_page, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(flush_tlb_all, hypersparc_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_mm, hypersparc_flush_tlb_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_range, hypersparc_flush_tlb_range, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_page, hypersparc_flush_tlb_page, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(__flush_page_to_ram, hypersparc_flush_page_to_ram, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_sig_insns, hypersparc_flush_sig_insns, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_page_for_dma, hypersparc_flush_page_for_dma, BTFIXUPCALL_NOP);
-
+ sparc32_cachetlb_ops = &hypersparc_ops;
poke_srmmu = poke_hypersparc;
hypersparc_setup_blockops();
}
-static void __cpuinit poke_cypress(void)
-{
- unsigned long mreg = srmmu_get_mmureg();
- unsigned long faddr, tagval;
- volatile unsigned long cypress_sucks;
- volatile unsigned long clear;
-
- clear = srmmu_get_faddr();
- clear = srmmu_get_fstatus();
-
- if (!(mreg & CYPRESS_CENABLE)) {
- for(faddr = 0x0; faddr < 0x10000; faddr += 20) {
- __asm__ __volatile__("sta %%g0, [%0 + %1] %2\n\t"
- "sta %%g0, [%0] %2\n\t" : :
- "r" (faddr), "r" (0x40000),
- "i" (ASI_M_DATAC_TAG));
- }
- } else {
- for(faddr = 0; faddr < 0x10000; faddr += 0x20) {
- __asm__ __volatile__("lda [%1 + %2] %3, %0\n\t" :
- "=r" (tagval) :
- "r" (faddr), "r" (0x40000),
- "i" (ASI_M_DATAC_TAG));
-
- /* If modified and valid, kick it. */
- if((tagval & 0x60) == 0x60)
- cypress_sucks = *(unsigned long *)
- (0xf0020000 + faddr);
- }
- }
-
- /* And one more, for our good neighbor, Mr. Broken Cypress. */
- clear = srmmu_get_faddr();
- clear = srmmu_get_fstatus();
-
- mreg |= (CYPRESS_CENABLE | CYPRESS_CMODE);
- srmmu_set_mmureg(mreg);
-}
-
-static void __init init_cypress_common(void)
-{
- init_vac_layout();
-
- BTFIXUPSET_CALL(pte_clear, srmmu_pte_clear, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pmd_clear, srmmu_pmd_clear, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pgd_clear, srmmu_pgd_clear, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_all, cypress_flush_cache_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_mm, cypress_flush_cache_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_range, cypress_flush_cache_range, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_page, cypress_flush_cache_page, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(flush_tlb_all, cypress_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_mm, cypress_flush_tlb_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_page, cypress_flush_tlb_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_range, cypress_flush_tlb_range, BTFIXUPCALL_NORM);
-
-
- BTFIXUPSET_CALL(__flush_page_to_ram, cypress_flush_page_to_ram, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_sig_insns, cypress_flush_sig_insns, BTFIXUPCALL_NOP);
- BTFIXUPSET_CALL(flush_page_for_dma, cypress_flush_page_for_dma, BTFIXUPCALL_NOP);
-
- poke_srmmu = poke_cypress;
-}
-
-static void __init init_cypress_604(void)
-{
- srmmu_name = "ROSS Cypress-604(UP)";
- srmmu_modtype = Cypress;
- init_cypress_common();
-}
-
-static void __init init_cypress_605(unsigned long mrev)
-{
- srmmu_name = "ROSS Cypress-605(MP)";
- if(mrev == 0xe) {
- srmmu_modtype = Cypress_vE;
- hwbug_bitmask |= HWBUG_COPYBACK_BROKEN;
- } else {
- if(mrev == 0xd) {
- srmmu_modtype = Cypress_vD;
- hwbug_bitmask |= HWBUG_ASIFLUSH_BROKEN;
- } else {
- srmmu_modtype = Cypress;
- }
- }
- init_cypress_common();
-}
-
static void __cpuinit poke_swift(void)
{
unsigned long mreg;
srmmu_set_mmureg(mreg);
}
+static const struct sparc32_cachetlb_ops swift_ops = {
+ .cache_all = swift_flush_cache_all,
+ .cache_mm = swift_flush_cache_mm,
+ .cache_page = swift_flush_cache_page,
+ .cache_range = swift_flush_cache_range,
+ .tlb_all = swift_flush_tlb_all,
+ .tlb_mm = swift_flush_tlb_mm,
+ .tlb_page = swift_flush_tlb_page,
+ .tlb_range = swift_flush_tlb_range,
+ .page_to_ram = swift_flush_page_to_ram,
+ .sig_insns = swift_flush_sig_insns,
+ .page_for_dma = swift_flush_page_for_dma,
+};
+
#define SWIFT_MASKID_ADDR 0x10003018
static void __init init_swift(void)
{
break;
}
- BTFIXUPSET_CALL(flush_cache_all, swift_flush_cache_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_mm, swift_flush_cache_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_page, swift_flush_cache_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_range, swift_flush_cache_range, BTFIXUPCALL_NORM);
-
-
- BTFIXUPSET_CALL(flush_tlb_all, swift_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_mm, swift_flush_tlb_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_page, swift_flush_tlb_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_range, swift_flush_tlb_range, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(__flush_page_to_ram, swift_flush_page_to_ram, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_sig_insns, swift_flush_sig_insns, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_page_for_dma, swift_flush_page_for_dma, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(update_mmu_cache, swift_update_mmu_cache, BTFIXUPCALL_NORM);
-
+ sparc32_cachetlb_ops = &swift_ops;
flush_page_for_dma_global = 0;
/*
srmmu_set_mmureg(mreg);
}
+static const struct sparc32_cachetlb_ops turbosparc_ops = {
+ .cache_all = turbosparc_flush_cache_all,
+ .cache_mm = turbosparc_flush_cache_mm,
+ .cache_page = turbosparc_flush_cache_page,
+ .cache_range = turbosparc_flush_cache_range,
+ .tlb_all = turbosparc_flush_tlb_all,
+ .tlb_mm = turbosparc_flush_tlb_mm,
+ .tlb_page = turbosparc_flush_tlb_page,
+ .tlb_range = turbosparc_flush_tlb_range,
+ .page_to_ram = turbosparc_flush_page_to_ram,
+ .sig_insns = turbosparc_flush_sig_insns,
+ .page_for_dma = turbosparc_flush_page_for_dma,
+};
+
static void __init init_turbosparc(void)
{
srmmu_name = "Fujitsu TurboSparc";
srmmu_modtype = TurboSparc;
-
- BTFIXUPSET_CALL(flush_cache_all, turbosparc_flush_cache_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_mm, turbosparc_flush_cache_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_page, turbosparc_flush_cache_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_range, turbosparc_flush_cache_range, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(flush_tlb_all, turbosparc_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_mm, turbosparc_flush_tlb_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_page, turbosparc_flush_tlb_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_range, turbosparc_flush_tlb_range, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(__flush_page_to_ram, turbosparc_flush_page_to_ram, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(flush_sig_insns, turbosparc_flush_sig_insns, BTFIXUPCALL_NOP);
- BTFIXUPSET_CALL(flush_page_for_dma, turbosparc_flush_page_for_dma, BTFIXUPCALL_NORM);
-
+ sparc32_cachetlb_ops = &turbosparc_ops;
poke_srmmu = poke_turbosparc;
}
srmmu_set_mmureg(mreg);
}
+static const struct sparc32_cachetlb_ops tsunami_ops = {
+ .cache_all = tsunami_flush_cache_all,
+ .cache_mm = tsunami_flush_cache_mm,
+ .cache_page = tsunami_flush_cache_page,
+ .cache_range = tsunami_flush_cache_range,
+ .tlb_all = tsunami_flush_tlb_all,
+ .tlb_mm = tsunami_flush_tlb_mm,
+ .tlb_page = tsunami_flush_tlb_page,
+ .tlb_range = tsunami_flush_tlb_range,
+ .page_to_ram = tsunami_flush_page_to_ram,
+ .sig_insns = tsunami_flush_sig_insns,
+ .page_for_dma = tsunami_flush_page_for_dma,
+};
+
static void __init init_tsunami(void)
{
/*
srmmu_name = "TI Tsunami";
srmmu_modtype = Tsunami;
-
- BTFIXUPSET_CALL(flush_cache_all, tsunami_flush_cache_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_mm, tsunami_flush_cache_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_page, tsunami_flush_cache_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_range, tsunami_flush_cache_range, BTFIXUPCALL_NORM);
-
-
- BTFIXUPSET_CALL(flush_tlb_all, tsunami_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_mm, tsunami_flush_tlb_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_page, tsunami_flush_tlb_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_range, tsunami_flush_tlb_range, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(__flush_page_to_ram, tsunami_flush_page_to_ram, BTFIXUPCALL_NOP);
- BTFIXUPSET_CALL(flush_sig_insns, tsunami_flush_sig_insns, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_page_for_dma, tsunami_flush_page_for_dma, BTFIXUPCALL_NORM);
-
+ sparc32_cachetlb_ops = &tsunami_ops;
poke_srmmu = poke_tsunami;
tsunami_setup_blockops();
unsigned long mreg = srmmu_get_mmureg();
static int smp_catch;
- if(viking_mxcc_present) {
+ if (viking_mxcc_present) {
unsigned long mxcc_control = mxcc_get_creg();
mxcc_control |= (MXCC_CTL_ECE | MXCC_CTL_PRE | MXCC_CTL_MCE);
srmmu_set_mmureg(mreg);
}
+static struct sparc32_cachetlb_ops viking_ops = {
+ .cache_all = viking_flush_cache_all,
+ .cache_mm = viking_flush_cache_mm,
+ .cache_page = viking_flush_cache_page,
+ .cache_range = viking_flush_cache_range,
+ .tlb_all = viking_flush_tlb_all,
+ .tlb_mm = viking_flush_tlb_mm,
+ .tlb_page = viking_flush_tlb_page,
+ .tlb_range = viking_flush_tlb_range,
+ .page_to_ram = viking_flush_page_to_ram,
+ .sig_insns = viking_flush_sig_insns,
+ .page_for_dma = viking_flush_page_for_dma,
+};
+
+#ifdef CONFIG_SMP
+/* On sun4d the cpu broadcasts local TLB flushes, so we can just
+ * perform the local TLB flush and all the other cpus will see it.
+ * But, unfortunately, there is a bug in the sun4d XBUS backplane
+ * that requires that we add some synchronization to these flushes.
+ *
+ * The bug is that the fifo which keeps track of all the pending TLB
+ * broadcasts in the system is an entry or two too small, so if we
+ * have too many going at once we'll overflow that fifo and lose a TLB
+ * flush resulting in corruption.
+ *
+ * Our workaround is to take a global spinlock around the TLB flushes,
+ * which guarentees we won't ever have too many pending. It's a big
+ * hammer, but a semaphore like system to make sure we only have N TLB
+ * flushes going at once will require SMP locking anyways so there's
+ * no real value in trying any harder than this.
+ */
+static struct sparc32_cachetlb_ops viking_sun4d_smp_ops = {
+ .cache_all = viking_flush_cache_all,
+ .cache_mm = viking_flush_cache_mm,
+ .cache_page = viking_flush_cache_page,
+ .cache_range = viking_flush_cache_range,
+ .tlb_all = sun4dsmp_flush_tlb_all,
+ .tlb_mm = sun4dsmp_flush_tlb_mm,
+ .tlb_page = sun4dsmp_flush_tlb_page,
+ .tlb_range = sun4dsmp_flush_tlb_range,
+ .page_to_ram = viking_flush_page_to_ram,
+ .sig_insns = viking_flush_sig_insns,
+ .page_for_dma = viking_flush_page_for_dma,
+};
+#endif
+
static void __init init_viking(void)
{
unsigned long mreg = srmmu_get_mmureg();
viking_mxcc_present = 0;
msi_set_sync();
- BTFIXUPSET_CALL(pte_clear, srmmu_pte_clear, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pmd_clear, srmmu_pmd_clear, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pgd_clear, srmmu_pgd_clear, BTFIXUPCALL_NORM);
-
/*
* We need this to make sure old viking takes no hits
* on it's cache for dma snoops to workaround the
* This is only necessary because of the new way in
* which we use the IOMMU.
*/
- BTFIXUPSET_CALL(flush_page_for_dma, viking_flush_page, BTFIXUPCALL_NORM);
-
+ viking_ops.page_for_dma = viking_flush_page;
+#ifdef CONFIG_SMP
+ viking_sun4d_smp_ops.page_for_dma = viking_flush_page;
+#endif
flush_page_for_dma_global = 0;
} else {
srmmu_name = "TI Viking/MXCC";
viking_mxcc_present = 1;
-
srmmu_cache_pagetables = 1;
-
- /* MXCC vikings lack the DMA snooping bug. */
- BTFIXUPSET_CALL(flush_page_for_dma, viking_flush_page_for_dma, BTFIXUPCALL_NOP);
}
- BTFIXUPSET_CALL(flush_cache_all, viking_flush_cache_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_mm, viking_flush_cache_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_page, viking_flush_cache_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_range, viking_flush_cache_range, BTFIXUPCALL_NORM);
-
+ sparc32_cachetlb_ops = (const struct sparc32_cachetlb_ops *)
+ &viking_ops;
#ifdef CONFIG_SMP
- if (sparc_cpu_model == sun4d) {
- BTFIXUPSET_CALL(flush_tlb_all, sun4dsmp_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_mm, sun4dsmp_flush_tlb_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_page, sun4dsmp_flush_tlb_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_range, sun4dsmp_flush_tlb_range, BTFIXUPCALL_NORM);
- } else
+ if (sparc_cpu_model == sun4d)
+ sparc32_cachetlb_ops = (const struct sparc32_cachetlb_ops *)
+ &viking_sun4d_smp_ops;
#endif
- {
- BTFIXUPSET_CALL(flush_tlb_all, viking_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_mm, viking_flush_tlb_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_page, viking_flush_tlb_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_range, viking_flush_tlb_range, BTFIXUPCALL_NORM);
- }
-
- BTFIXUPSET_CALL(__flush_page_to_ram, viking_flush_page_to_ram, BTFIXUPCALL_NOP);
- BTFIXUPSET_CALL(flush_sig_insns, viking_flush_sig_insns, BTFIXUPCALL_NOP);
poke_srmmu = poke_viking;
}
#ifdef CONFIG_SPARC_LEON
+static void leon_flush_cache_mm(struct mm_struct *mm)
+{
+ leon_flush_cache_all();
+}
-void __init poke_leonsparc(void)
+static void leon_flush_cache_page(struct vm_area_struct *vma, unsigned long page)
{
+ leon_flush_pcache_all(vma, page);
}
-void __init init_leon(void)
+static void leon_flush_cache_range(struct vm_area_struct *vma,
+ unsigned long start,
+ unsigned long end)
{
+ leon_flush_cache_all();
+}
- srmmu_name = "LEON";
+static void leon_flush_tlb_mm(struct mm_struct *mm)
+{
+ leon_flush_tlb_all();
+}
+
+static void leon_flush_tlb_page(struct vm_area_struct *vma,
+ unsigned long page)
+{
+ leon_flush_tlb_all();
+}
+
+static void leon_flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start,
+ unsigned long end)
+{
+ leon_flush_tlb_all();
+}
+
+static void leon_flush_page_to_ram(unsigned long page)
+{
+ leon_flush_cache_all();
+}
+
+static void leon_flush_sig_insns(struct mm_struct *mm, unsigned long page)
+{
+ leon_flush_cache_all();
+}
+
+static void leon_flush_page_for_dma(unsigned long page)
+{
+ leon_flush_dcache_all();
+}
+
+void __init poke_leonsparc(void)
+{
+}
- BTFIXUPSET_CALL(flush_cache_all, leon_flush_cache_all,
- BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_mm, leon_flush_cache_all,
- BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_page, leon_flush_pcache_all,
- BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_range, leon_flush_cache_all,
- BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_page_for_dma, leon_flush_dcache_all,
- BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(flush_tlb_all, leon_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_mm, leon_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_page, leon_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_range, leon_flush_tlb_all, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(__flush_page_to_ram, leon_flush_cache_all,
- BTFIXUPCALL_NOP);
- BTFIXUPSET_CALL(flush_sig_insns, leon_flush_cache_all, BTFIXUPCALL_NOP);
+static const struct sparc32_cachetlb_ops leon_ops = {
+ .cache_all = leon_flush_cache_all,
+ .cache_mm = leon_flush_cache_mm,
+ .cache_page = leon_flush_cache_page,
+ .cache_range = leon_flush_cache_range,
+ .tlb_all = leon_flush_tlb_all,
+ .tlb_mm = leon_flush_tlb_mm,
+ .tlb_page = leon_flush_tlb_page,
+ .tlb_range = leon_flush_tlb_range,
+ .page_to_ram = leon_flush_page_to_ram,
+ .sig_insns = leon_flush_sig_insns,
+ .page_for_dma = leon_flush_page_for_dma,
+};
+void __init init_leon(void)
+{
+ srmmu_name = "LEON";
+ sparc32_cachetlb_ops = &leon_ops;
poke_srmmu = poke_leonsparc;
srmmu_cache_pagetables = 0;
break;
case 0:
case 2:
- /* Uniprocessor Cypress */
- init_cypress_604();
- break;
case 10:
case 11:
case 12:
- /* _REALLY OLD_ Cypress MP chips... */
case 13:
case 14:
case 15:
- /* MP Cypress mmu/cache-controller */
- init_cypress_605(mod_rev);
- break;
default:
- /* Some other Cypress revision, assume a 605. */
- init_cypress_605(mod_rev);
+ prom_printf("Sparc-Linux Cypress support does not longer exit.\n");
+ prom_halt();
break;
}
return;
srmmu_is_bad();
}
-/* don't laugh, static pagetables */
-static void srmmu_check_pgt_cache(int low, int high)
+#ifdef CONFIG_SMP
+/* Local cross-calls. */
+static void smp_flush_page_for_dma(unsigned long page)
{
+ xc1((smpfunc_t) local_ops->page_for_dma, page);
+ local_ops->page_for_dma(page);
}
-extern unsigned long spwin_mmu_patchme, fwin_mmu_patchme,
- tsetup_mmu_patchme, rtrap_mmu_patchme;
-
-extern unsigned long spwin_srmmu_stackchk, srmmu_fwin_stackchk,
- tsetup_srmmu_stackchk, srmmu_rett_stackchk;
-
-extern unsigned long srmmu_fault;
-
-#define PATCH_BRANCH(insn, dest) do { \
- iaddr = &(insn); \
- daddr = &(dest); \
- *iaddr = SPARC_BRANCH((unsigned long) daddr, (unsigned long) iaddr); \
- } while(0)
-
-static void __init patch_window_trap_handlers(void)
+static void smp_flush_cache_all(void)
{
- unsigned long *iaddr, *daddr;
-
- PATCH_BRANCH(spwin_mmu_patchme, spwin_srmmu_stackchk);
- PATCH_BRANCH(fwin_mmu_patchme, srmmu_fwin_stackchk);
- PATCH_BRANCH(tsetup_mmu_patchme, tsetup_srmmu_stackchk);
- PATCH_BRANCH(rtrap_mmu_patchme, srmmu_rett_stackchk);
- PATCH_BRANCH(sparc_ttable[SP_TRAP_TFLT].inst_three, srmmu_fault);
- PATCH_BRANCH(sparc_ttable[SP_TRAP_DFLT].inst_three, srmmu_fault);
- PATCH_BRANCH(sparc_ttable[SP_TRAP_DACC].inst_three, srmmu_fault);
+ xc0((smpfunc_t) local_ops->cache_all);
+ local_ops->cache_all();
}
-#ifdef CONFIG_SMP
-/* Local cross-calls. */
-static void smp_flush_page_for_dma(unsigned long page)
+static void smp_flush_tlb_all(void)
{
- xc1((smpfunc_t) BTFIXUP_CALL(local_flush_page_for_dma), page);
- local_flush_page_for_dma(page);
+ xc0((smpfunc_t) local_ops->tlb_all);
+ local_ops->tlb_all();
}
-#endif
-
-static pte_t srmmu_pgoff_to_pte(unsigned long pgoff)
+static void smp_flush_cache_mm(struct mm_struct *mm)
{
- return __pte((pgoff << SRMMU_PTE_FILE_SHIFT) | SRMMU_FILE);
+ if (mm->context != NO_CONTEXT) {
+ cpumask_t cpu_mask;
+ cpumask_copy(&cpu_mask, mm_cpumask(mm));
+ cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
+ if (!cpumask_empty(&cpu_mask))
+ xc1((smpfunc_t) local_ops->cache_mm, (unsigned long) mm);
+ local_ops->cache_mm(mm);
+ }
}
-static unsigned long srmmu_pte_to_pgoff(pte_t pte)
+static void smp_flush_tlb_mm(struct mm_struct *mm)
{
- return pte_val(pte) >> SRMMU_PTE_FILE_SHIFT;
+ if (mm->context != NO_CONTEXT) {
+ cpumask_t cpu_mask;
+ cpumask_copy(&cpu_mask, mm_cpumask(mm));
+ cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
+ if (!cpumask_empty(&cpu_mask)) {
+ xc1((smpfunc_t) local_ops->tlb_mm, (unsigned long) mm);
+ if (atomic_read(&mm->mm_users) == 1 && current->active_mm == mm)
+ cpumask_copy(mm_cpumask(mm),
+ cpumask_of(smp_processor_id()));
+ }
+ local_ops->tlb_mm(mm);
+ }
}
-static pgprot_t srmmu_pgprot_noncached(pgprot_t prot)
+static void smp_flush_cache_range(struct vm_area_struct *vma,
+ unsigned long start,
+ unsigned long end)
{
- prot &= ~__pgprot(SRMMU_CACHE);
+ struct mm_struct *mm = vma->vm_mm;
- return prot;
+ if (mm->context != NO_CONTEXT) {
+ cpumask_t cpu_mask;
+ cpumask_copy(&cpu_mask, mm_cpumask(mm));
+ cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
+ if (!cpumask_empty(&cpu_mask))
+ xc3((smpfunc_t) local_ops->cache_range,
+ (unsigned long) vma, start, end);
+ local_ops->cache_range(vma, start, end);
+ }
}
-/* Load up routines and constants for sun4m and sun4d mmu */
-void __init ld_mmu_srmmu(void)
+static void smp_flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start,
+ unsigned long end)
{
- extern void ld_mmu_iommu(void);
- extern void ld_mmu_iounit(void);
- extern void ___xchg32_sun4md(void);
-
- BTFIXUPSET_SIMM13(pgdir_shift, SRMMU_PGDIR_SHIFT);
- BTFIXUPSET_SETHI(pgdir_size, SRMMU_PGDIR_SIZE);
- BTFIXUPSET_SETHI(pgdir_mask, SRMMU_PGDIR_MASK);
-
- BTFIXUPSET_SIMM13(ptrs_per_pmd, SRMMU_PTRS_PER_PMD);
- BTFIXUPSET_SIMM13(ptrs_per_pgd, SRMMU_PTRS_PER_PGD);
-
- BTFIXUPSET_INT(page_none, pgprot_val(SRMMU_PAGE_NONE));
- PAGE_SHARED = pgprot_val(SRMMU_PAGE_SHARED);
- BTFIXUPSET_INT(page_copy, pgprot_val(SRMMU_PAGE_COPY));
- BTFIXUPSET_INT(page_readonly, pgprot_val(SRMMU_PAGE_RDONLY));
- BTFIXUPSET_INT(page_kernel, pgprot_val(SRMMU_PAGE_KERNEL));
- page_kernel = pgprot_val(SRMMU_PAGE_KERNEL);
+ struct mm_struct *mm = vma->vm_mm;
- /* Functions */
- BTFIXUPSET_CALL(pgprot_noncached, srmmu_pgprot_noncached, BTFIXUPCALL_NORM);
-#ifndef CONFIG_SMP
- BTFIXUPSET_CALL(___xchg32, ___xchg32_sun4md, BTFIXUPCALL_SWAPG1G2);
-#endif
- BTFIXUPSET_CALL(do_check_pgt_cache, srmmu_check_pgt_cache, BTFIXUPCALL_NOP);
+ if (mm->context != NO_CONTEXT) {
+ cpumask_t cpu_mask;
+ cpumask_copy(&cpu_mask, mm_cpumask(mm));
+ cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
+ if (!cpumask_empty(&cpu_mask))
+ xc3((smpfunc_t) local_ops->tlb_range,
+ (unsigned long) vma, start, end);
+ local_ops->tlb_range(vma, start, end);
+ }
+}
- BTFIXUPSET_CALL(set_pte, srmmu_set_pte, BTFIXUPCALL_SWAPO0O1);
- BTFIXUPSET_CALL(switch_mm, srmmu_switch_mm, BTFIXUPCALL_NORM);
+static void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page)
+{
+ struct mm_struct *mm = vma->vm_mm;
- BTFIXUPSET_CALL(pte_pfn, srmmu_pte_pfn, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pmd_page, srmmu_pmd_page, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pgd_page_vaddr, srmmu_pgd_page, BTFIXUPCALL_NORM);
+ if (mm->context != NO_CONTEXT) {
+ cpumask_t cpu_mask;
+ cpumask_copy(&cpu_mask, mm_cpumask(mm));
+ cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
+ if (!cpumask_empty(&cpu_mask))
+ xc2((smpfunc_t) local_ops->cache_page,
+ (unsigned long) vma, page);
+ local_ops->cache_page(vma, page);
+ }
+}
- BTFIXUPSET_CALL(pte_present, srmmu_pte_present, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pte_clear, srmmu_pte_clear, BTFIXUPCALL_SWAPO0G0);
+static void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
+{
+ struct mm_struct *mm = vma->vm_mm;
- BTFIXUPSET_CALL(pmd_bad, srmmu_pmd_bad, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pmd_present, srmmu_pmd_present, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pmd_clear, srmmu_pmd_clear, BTFIXUPCALL_SWAPO0G0);
+ if (mm->context != NO_CONTEXT) {
+ cpumask_t cpu_mask;
+ cpumask_copy(&cpu_mask, mm_cpumask(mm));
+ cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
+ if (!cpumask_empty(&cpu_mask))
+ xc2((smpfunc_t) local_ops->tlb_page,
+ (unsigned long) vma, page);
+ local_ops->tlb_page(vma, page);
+ }
+}
- BTFIXUPSET_CALL(pgd_none, srmmu_pgd_none, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pgd_bad, srmmu_pgd_bad, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pgd_present, srmmu_pgd_present, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pgd_clear, srmmu_pgd_clear, BTFIXUPCALL_SWAPO0G0);
+static void smp_flush_page_to_ram(unsigned long page)
+{
+ /* Current theory is that those who call this are the one's
+ * who have just dirtied their cache with the pages contents
+ * in kernel space, therefore we only run this on local cpu.
+ *
+ * XXX This experiment failed, research further... -DaveM
+ */
+#if 1
+ xc1((smpfunc_t) local_ops->page_to_ram, page);
+#endif
+ local_ops->page_to_ram(page);
+}
+
+static void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr)
+{
+ cpumask_t cpu_mask;
+ cpumask_copy(&cpu_mask, mm_cpumask(mm));
+ cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
+ if (!cpumask_empty(&cpu_mask))
+ xc2((smpfunc_t) local_ops->sig_insns,
+ (unsigned long) mm, insn_addr);
+ local_ops->sig_insns(mm, insn_addr);
+}
+
+static struct sparc32_cachetlb_ops smp_cachetlb_ops = {
+ .cache_all = smp_flush_cache_all,
+ .cache_mm = smp_flush_cache_mm,
+ .cache_page = smp_flush_cache_page,
+ .cache_range = smp_flush_cache_range,
+ .tlb_all = smp_flush_tlb_all,
+ .tlb_mm = smp_flush_tlb_mm,
+ .tlb_page = smp_flush_tlb_page,
+ .tlb_range = smp_flush_tlb_range,
+ .page_to_ram = smp_flush_page_to_ram,
+ .sig_insns = smp_flush_sig_insns,
+ .page_for_dma = smp_flush_page_for_dma,
+};
+#endif
- BTFIXUPSET_CALL(mk_pte, srmmu_mk_pte, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(mk_pte_phys, srmmu_mk_pte_phys, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(mk_pte_io, srmmu_mk_pte_io, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pgd_set, srmmu_pgd_set, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pmd_set, srmmu_pmd_set, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pmd_populate, srmmu_pmd_populate, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_INT(pte_modify_mask, SRMMU_CHG_MASK);
- BTFIXUPSET_CALL(pmd_offset, srmmu_pmd_offset, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pte_offset_kernel, srmmu_pte_offset, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(free_pte_fast, srmmu_free_pte_fast, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pte_free, srmmu_pte_free, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pte_alloc_one_kernel, srmmu_pte_alloc_one_kernel, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pte_alloc_one, srmmu_pte_alloc_one, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(free_pmd_fast, srmmu_pmd_free, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pmd_alloc_one, srmmu_pmd_alloc_one, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(free_pgd_fast, srmmu_free_pgd_fast, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(get_pgd_fast, srmmu_get_pgd_fast, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_HALF(pte_writei, SRMMU_WRITE);
- BTFIXUPSET_HALF(pte_dirtyi, SRMMU_DIRTY);
- BTFIXUPSET_HALF(pte_youngi, SRMMU_REF);
- BTFIXUPSET_HALF(pte_filei, SRMMU_FILE);
- BTFIXUPSET_HALF(pte_wrprotecti, SRMMU_WRITE);
- BTFIXUPSET_HALF(pte_mkcleani, SRMMU_DIRTY);
- BTFIXUPSET_HALF(pte_mkoldi, SRMMU_REF);
- BTFIXUPSET_CALL(pte_mkwrite, srmmu_pte_mkwrite, BTFIXUPCALL_ORINT(SRMMU_WRITE));
- BTFIXUPSET_CALL(pte_mkdirty, srmmu_pte_mkdirty, BTFIXUPCALL_ORINT(SRMMU_DIRTY));
- BTFIXUPSET_CALL(pte_mkyoung, srmmu_pte_mkyoung, BTFIXUPCALL_ORINT(SRMMU_REF));
- BTFIXUPSET_CALL(update_mmu_cache, srmmu_update_mmu_cache, BTFIXUPCALL_NOP);
- BTFIXUPSET_CALL(destroy_context, srmmu_destroy_context, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(sparc_mapiorange, srmmu_mapiorange, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(sparc_unmapiorange, srmmu_unmapiorange, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(__swp_type, srmmu_swp_type, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(__swp_offset, srmmu_swp_offset, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(__swp_entry, srmmu_swp_entry, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(mmu_info, srmmu_mmu_info, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(alloc_thread_info_node, srmmu_alloc_thread_info_node, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(free_thread_info, srmmu_free_thread_info, BTFIXUPCALL_NORM);
-
- BTFIXUPSET_CALL(pte_to_pgoff, srmmu_pte_to_pgoff, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(pgoff_to_pte, srmmu_pgoff_to_pte, BTFIXUPCALL_NORM);
+/* Load up routines and constants for sun4m and sun4d mmu */
+void __init load_mmu(void)
+{
+ extern void ld_mmu_iommu(void);
+ extern void ld_mmu_iounit(void);
+ /* Functions */
get_srmmu_type();
- patch_window_trap_handlers();
#ifdef CONFIG_SMP
/* El switcheroo... */
+ local_ops = sparc32_cachetlb_ops;
- BTFIXUPCOPY_CALL(local_flush_cache_all, flush_cache_all);
- BTFIXUPCOPY_CALL(local_flush_cache_mm, flush_cache_mm);
- BTFIXUPCOPY_CALL(local_flush_cache_range, flush_cache_range);
- BTFIXUPCOPY_CALL(local_flush_cache_page, flush_cache_page);
- BTFIXUPCOPY_CALL(local_flush_tlb_all, flush_tlb_all);
- BTFIXUPCOPY_CALL(local_flush_tlb_mm, flush_tlb_mm);
- BTFIXUPCOPY_CALL(local_flush_tlb_range, flush_tlb_range);
- BTFIXUPCOPY_CALL(local_flush_tlb_page, flush_tlb_page);
- BTFIXUPCOPY_CALL(local_flush_page_to_ram, __flush_page_to_ram);
- BTFIXUPCOPY_CALL(local_flush_sig_insns, flush_sig_insns);
- BTFIXUPCOPY_CALL(local_flush_page_for_dma, flush_page_for_dma);
-
- BTFIXUPSET_CALL(flush_cache_all, smp_flush_cache_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_mm, smp_flush_cache_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_range, smp_flush_cache_range, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_cache_page, smp_flush_cache_page, BTFIXUPCALL_NORM);
- if (sparc_cpu_model != sun4d &&
- sparc_cpu_model != sparc_leon) {
- BTFIXUPSET_CALL(flush_tlb_all, smp_flush_tlb_all, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_mm, smp_flush_tlb_mm, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_range, smp_flush_tlb_range, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_tlb_page, smp_flush_tlb_page, BTFIXUPCALL_NORM);
+ if (sparc_cpu_model == sun4d || sparc_cpu_model == sparc_leon) {
+ smp_cachetlb_ops.tlb_all = local_ops->tlb_all;
+ smp_cachetlb_ops.tlb_mm = local_ops->tlb_mm;
+ smp_cachetlb_ops.tlb_range = local_ops->tlb_range;
+ smp_cachetlb_ops.tlb_page = local_ops->tlb_page;
}
- BTFIXUPSET_CALL(__flush_page_to_ram, smp_flush_page_to_ram, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_sig_insns, smp_flush_sig_insns, BTFIXUPCALL_NORM);
- BTFIXUPSET_CALL(flush_page_for_dma, smp_flush_page_for_dma, BTFIXUPCALL_NORM);
if (poke_srmmu == poke_viking) {
/* Avoid unnecessary cross calls. */
- BTFIXUPCOPY_CALL(flush_cache_all, local_flush_cache_all);
- BTFIXUPCOPY_CALL(flush_cache_mm, local_flush_cache_mm);
- BTFIXUPCOPY_CALL(flush_cache_range, local_flush_cache_range);
- BTFIXUPCOPY_CALL(flush_cache_page, local_flush_cache_page);
- BTFIXUPCOPY_CALL(__flush_page_to_ram, local_flush_page_to_ram);
- BTFIXUPCOPY_CALL(flush_sig_insns, local_flush_sig_insns);
- BTFIXUPCOPY_CALL(flush_page_for_dma, local_flush_page_for_dma);
+ smp_cachetlb_ops.cache_all = local_ops->cache_all;
+ smp_cachetlb_ops.cache_mm = local_ops->cache_mm;
+ smp_cachetlb_ops.cache_range = local_ops->cache_range;
+ smp_cachetlb_ops.cache_page = local_ops->cache_page;
+
+ smp_cachetlb_ops.page_to_ram = local_ops->page_to_ram;
+ smp_cachetlb_ops.sig_insns = local_ops->sig_insns;
+ smp_cachetlb_ops.page_for_dma = local_ops->page_for_dma;
}
+
+ /* It really is const after this point. */
+ sparc32_cachetlb_ops = (const struct sparc32_cachetlb_ops *)
+ &smp_cachetlb_ops;
#endif
if (sparc_cpu_model == sun4d)
projects / linux-block.git / blobdiff