sparc32: fix coding-style in srmmu.c

Fix the most annoying issues that distracts me:
- whitespace
- missing space after "if" and "while"
- spaces around operators
and similar simple things.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 533143b..4b00f69 100644 (file)
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -136,8 +136,8 @@ void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep)
        }
 }
 
-/* Find an entry in the third-level page table.. */ 
-pte_t *pte_offset_kernel(pmd_t * dir, unsigned long address)
+/* Find an entry in the third-level page table.. */
+pte_t *pte_offset_kernel(pmd_t *dir, unsigned long address)
 {
        void *pte;
 
@@ -166,7 +166,7 @@ static unsigned long __srmmu_get_nocache(int size, int align)
        BUG_ON(align > SRMMU_NOCACHE_ALIGN_MAX);
 
        offset = bit_map_string_get(&srmmu_nocache_map,
-                                       size >> SRMMU_NOCACHE_BITMAP_SHIFT,
+                                       size >> SRMMU_NOCACHE_BITMAP_SHIFT,
                                        align >> SRMMU_NOCACHE_BITMAP_SHIFT);
        if (offset == -1) {
                printk("srmmu: out of nocache %d: %d/%d\n",
@@ -199,7 +199,7 @@ void srmmu_free_nocache(unsigned long vaddr, int size)
                    vaddr, (unsigned long)SRMMU_NOCACHE_VADDR);
                BUG();
        }
-       if (vaddr+size > srmmu_nocache_end) {
+       if (vaddr + size > srmmu_nocache_end) {
                printk("Vaddr %lx is bigger than nocache end 0x%lx\n",
                    vaddr, srmmu_nocache_end);
                BUG();
@@ -212,7 +212,7 @@ void srmmu_free_nocache(unsigned long vaddr, int size)
                printk("Size 0x%x is too small\n", size);
                BUG();
        }
-       if (vaddr & (size-1)) {
+       if (vaddr & (size - 1)) {
                printk("Vaddr %lx is not aligned to size 0x%x\n", vaddr, size);
                BUG();
        }
@@ -330,7 +330,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 
        if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0)
                return NULL;
-       page = pfn_to_page( __nocache_pa(pte) >> PAGE_SHIFT );
+       page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
        pgtable_page_ctor(page);
        return page;
 }
@@ -355,7 +355,7 @@ static inline void alloc_context(struct mm_struct *old_mm, struct mm_struct *mm)
        struct ctx_list *ctxp;
 
        ctxp = ctx_free.next;
-       if(ctxp != &ctx_free) {
+       if (ctxp != &ctx_free) {
                remove_from_ctx_list(ctxp);
                add_to_used_ctxlist(ctxp);
                mm->context = ctxp->ctx_number;
@@ -363,9 +363,9 @@ static inline void alloc_context(struct mm_struct *old_mm, struct mm_struct *mm)
                return;
        }
        ctxp = ctx_used.next;
-       if(ctxp->ctx_mm == old_mm)
+       if (ctxp->ctx_mm == old_mm)
                ctxp = ctxp->next;
-       if(ctxp == &ctx_used)
+       if (ctxp == &ctx_used)
                panic("out of mmu contexts");
        flush_cache_mm(ctxp->ctx_mm);
        flush_tlb_mm(ctxp->ctx_mm);
@@ -389,7 +389,7 @@ static inline void free_context(int context)
 void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
               struct task_struct *tsk)
 {
-       if(mm->context == NO_CONTEXT) {
+       if (mm->context == NO_CONTEXT) {
                spin_lock(&srmmu_context_spinlock);
                alloc_context(old_mm, mm);
                spin_unlock(&srmmu_context_spinlock);
@@ -407,7 +407,7 @@ void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
 
 /* Low level IO area allocation on the SRMMU. */
 static inline void srmmu_mapioaddr(unsigned long physaddr,
-    unsigned long virt_addr, int bus_type)
+                                  unsigned long virt_addr, int bus_type)
 {
        pgd_t *pgdp;
        pmd_t *pmdp;
@@ -420,8 +420,7 @@ static inline void srmmu_mapioaddr(unsigned long physaddr,
        ptep = pte_offset_kernel(pmdp, virt_addr);
        tmp = (physaddr >> 4) | SRMMU_ET_PTE;
 
-       /*
-        * I need to test whether this is consistent over all
+       /* I need to test whether this is consistent over all
         * sun4m's.  The bus_type represents the upper 4 bits of
         * 36-bit physical address on the I/O space lines...
         */
@@ -591,7 +590,7 @@ static void __init srmmu_early_allocate_ptable_skeleton(unsigned long start,
        pmd_t *pmdp;
        pte_t *ptep;
 
-       while(start < end) {
+       while (start < end) {
                pgdp = pgd_offset_k(start);
                if (pgd_none(*(pgd_t *)__nocache_fix(pgdp))) {
                        pmdp = (pmd_t *) __srmmu_get_nocache(
@@ -602,7 +601,7 @@ static void __init srmmu_early_allocate_ptable_skeleton(unsigned long start,
                        pgd_set(__nocache_fix(pgdp), pmdp);
                }
                pmdp = pmd_offset(__nocache_fix(pgdp), start);
-               if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) {
+               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");
@@ -622,7 +621,7 @@ static void __init srmmu_allocate_ptable_skeleton(unsigned long start,
        pmd_t *pmdp;
        pte_t *ptep;
 
-       while(start < end) {
+       while (start < end) {
                pgdp = pgd_offset_k(start);
                if (pgd_none(*pgdp)) {
                        pmdp = (pmd_t *)__srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE);
@@ -632,7 +631,7 @@ static void __init srmmu_allocate_ptable_skeleton(unsigned long start,
                        pgd_set(pgdp, pmdp);
                }
                pmdp = pmd_offset(pgdp, start);
-               if(srmmu_pmd_none(*pmdp)) {
+               if (srmmu_pmd_none(*pmdp)) {
                        ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE,
                                                             PTE_SIZE);
                        if (ptep == NULL)
@@ -677,32 +676,32 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start,
        int what = 0; /* 0 = normal-pte, 1 = pmd-level pte, 2 = pgd-level pte */
        unsigned long prompte;
 
-       while(start <= end) {
+       while (start <= end) {
                if (start == 0)
                        break; /* probably wrap around */
-               if(start == 0xfef00000)
+               if (start == 0xfef00000)
                        start = KADB_DEBUGGER_BEGVM;
-               if(!(prompte = srmmu_probe(start))) {
+               if (!(prompte = srmmu_probe(start))) {
                        start += PAGE_SIZE;
                        continue;
                }
-    
+
                /* A red snapper, see what it really is. */
                what = 0;
-    
-               if(!(start & ~(SRMMU_REAL_PMD_MASK))) {
-                       if(srmmu_probe((start-PAGE_SIZE) + SRMMU_REAL_PMD_SIZE) == prompte)
+
+               if (!(start & ~(SRMMU_REAL_PMD_MASK))) {
+                       if (srmmu_probe((start - PAGE_SIZE) + SRMMU_REAL_PMD_SIZE) == prompte)
                                what = 1;
                }
-    
-               if(!(start & ~(SRMMU_PGDIR_MASK))) {
-                       if(srmmu_probe((start-PAGE_SIZE) + SRMMU_PGDIR_SIZE) ==
+
+               if (!(start & ~(SRMMU_PGDIR_MASK))) {
+                       if (srmmu_probe((start-PAGE_SIZE) + SRMMU_PGDIR_SIZE) ==
                           prompte)
                                what = 2;
                }
-    
+
                pgdp = pgd_offset_k(start);
-               if(what == 2) {
+               if (what == 2) {
                        *(pgd_t *)__nocache_fix(pgdp) = __pgd(prompte);
                        start += SRMMU_PGDIR_SIZE;
                        continue;
@@ -715,17 +714,15 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start,
                        pgd_set(__nocache_fix(pgdp), pmdp);
                }
                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 (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);
                        pmd_set(__nocache_fix(pmdp), ptep);
                }
-               if(what == 1) {
-                       /*
-                        * We bend the rule where all 16 PTPs in a pmd_t point
+               if (what == 1) {
+                       /* We bend the rule where all 16 PTPs in a pmd_t point
                         * inside the same PTE page, and we leak a perfectly
                         * good hardware PTE piece. Alternatives seem worse.
                         */
@@ -765,11 +762,11 @@ static unsigned long __init map_spbank(unsigned long vbase, int sp_entry)
 
        if (vstart < min_vaddr || vstart >= max_vaddr)
                return vstart;
-       
+
        if (vend > max_vaddr || vend < min_vaddr)
                vend = max_vaddr;
 
-       while(vstart < vend) {
+       while (vstart < vend) {
                do_large_mapping(vstart, pstart);
                vstart += SRMMU_PGDIR_SIZE; pstart += SRMMU_PGDIR_SIZE;
        }
@@ -814,9 +811,9 @@ void __init srmmu_paging_init(void)
                /* Find the number of contexts on the srmmu. */
                cpunode = prom_getchild(prom_root_node);
                num_contexts = 0;
-               while(cpunode != 0) {
+               while (cpunode != 0) {
                        prom_getstring(cpunode, "device_type", node_str, sizeof(node_str));
-                       if(!strcmp(node_str, "cpu")) {
+                       if (!strcmp(node_str, "cpu")) {
                                num_contexts = prom_getintdefault(cpunode, "mmu-nctx", 0x8);
                                break;
                        }
@@ -824,7 +821,7 @@ void __init srmmu_paging_init(void)
                }
        }
 
-       if(!num_contexts) {
+       if (!num_contexts) {
                prom_printf("Something wrong, can't find cpu node in paging_init.\n");
                prom_halt();
        }
@@ -834,14 +831,14 @@ void __init srmmu_paging_init(void)
 
        srmmu_nocache_calcsize();
        srmmu_nocache_init();
-        srmmu_inherit_prom_mappings(0xfe400000,(LINUX_OPPROM_ENDVM-PAGE_SIZE));
+       srmmu_inherit_prom_mappings(0xfe400000, (LINUX_OPPROM_ENDVM-PAGE_SIZE));
        map_kernel();
 
        /* ctx table has to be physically aligned to its size */
        srmmu_context_table = (ctxd_t *)__srmmu_get_nocache(num_contexts*sizeof(ctxd_t), num_contexts*sizeof(ctxd_t));
        srmmu_ctx_table_phys = (ctxd_t *)__nocache_pa((unsigned long)srmmu_context_table);
 
-       for(i = 0; i < num_contexts; i++)
+       for (i = 0; i < num_contexts; i++)
                srmmu_ctxd_set((ctxd_t *)__nocache_fix(&srmmu_context_table[i]), srmmu_swapper_pg_dir);
 
        flush_cache_all();
@@ -897,7 +894,7 @@ void __init srmmu_paging_init(void)
 
 void mmu_info(struct seq_file *m)
 {
-       seq_printf(m, 
+       seq_printf(m,
                   "MMU type\t: %s\n"
                   "contexts\t: %d\n"
                   "nocache total\t: %ld\n"
@@ -911,7 +908,7 @@ void mmu_info(struct seq_file *m)
 void destroy_context(struct mm_struct *mm)
 {
 
-       if(mm->context != NO_CONTEXT) {
+       if (mm->context != NO_CONTEXT) {
                flush_cache_mm(mm);
                srmmu_ctxd_set(&srmmu_context_table[mm->context], srmmu_swapper_pg_dir);
                flush_tlb_mm(mm);
@@ -941,13 +938,12 @@ static void __init init_vac_layout(void)
 #endif
 
        nd = prom_getchild(prom_root_node);
-       while((nd = prom_getsibling(nd)) != 0) {
+       while ((nd = prom_getsibling(nd)) != 0) {
                prom_getstring(nd, "device_type", node_str, sizeof(node_str));
-               if(!strcmp(node_str, "cpu")) {
+               if (!strcmp(node_str, "cpu")) {
                        vac_line_size = prom_getint(nd, "cache-line-size");
                        if (vac_line_size == -1) {
-                               prom_printf("can't determine cache-line-size, "
-                                           "halting.\n");
+                               prom_printf("can't determine cache-line-size, halting.\n");
                                prom_halt();
                        }
                        cache_lines = prom_getint(nd, "cache-nlines");
@@ -958,9 +954,9 @@ static void __init init_vac_layout(void)
 
                        vac_cache_size = cache_lines * vac_line_size;
 #ifdef CONFIG_SMP
-                       if(vac_cache_size > max_size)
+                       if (vac_cache_size > max_size)
                                max_size = vac_cache_size;
-                       if(vac_line_size < min_line_size)
+                       if (vac_line_size < min_line_size)
                                min_line_size = vac_line_size;
                        //FIXME: cpus not contiguous!!
                        cpu++;
@@ -971,7 +967,7 @@ static void __init init_vac_layout(void)
 #endif
                }
        }
-       if(nd == 0) {
+       if (nd == 0) {
                prom_printf("No CPU nodes found, halting.\n");
                prom_halt();
        }
@@ -1082,7 +1078,7 @@ static void __init init_swift(void)
                             "=r" (swift_rev) :
                             "r" (SWIFT_MASKID_ADDR), "i" (ASI_M_BYPASS));
        srmmu_name = "Fujitsu Swift";
-       switch(swift_rev) {
+       switch (swift_rev) {
        case 0x11:
        case 0x20:
        case 0x23:
@@ -1222,10 +1218,11 @@ static void __cpuinit poke_turbosparc(void)
 
        /* Clear any crap from the cache or else... */
        turbosparc_flush_cache_all();
-       mreg &= ~(TURBOSPARC_ICENABLE | TURBOSPARC_DCENABLE); /* Temporarily disable I & D caches */
+       /* Temporarily disable I & D caches */
+       mreg &= ~(TURBOSPARC_ICENABLE | TURBOSPARC_DCENABLE);
        mreg &= ~(TURBOSPARC_PCENABLE);         /* Don't check parity */
        srmmu_set_mmureg(mreg);
-       
+
        ccreg = turbosparc_get_ccreg();
 
 #ifdef TURBOSPARC_WRITEBACK
@@ -1248,7 +1245,7 @@ static void __cpuinit poke_turbosparc(void)
        default:
                ccreg |= (TURBOSPARC_SCENABLE);
        }
-       turbosparc_set_ccreg (ccreg);
+       turbosparc_set_ccreg(ccreg);
 
        mreg |= (TURBOSPARC_ICENABLE | TURBOSPARC_DCENABLE); /* I & D caches on */
        mreg |= (TURBOSPARC_ICSNOOP);           /* Icache snooping on */
@@ -1342,7 +1339,7 @@ static void __cpuinit poke_viking(void)
                unsigned long bpreg;
 
                mreg &= ~(VIKING_TCENABLE);
-               if(smp_catch++) {
+               if (smp_catch++) {
                        /* Must disable mixed-cmd mode here for other cpu's. */
                        bpreg = viking_get_bpreg();
                        bpreg &= ~(VIKING_ACTION_MIX);
@@ -1411,7 +1408,7 @@ static void __init init_viking(void)
        unsigned long mreg = srmmu_get_mmureg();
 
        /* Ahhh, the viking.  SRMMU VLSI abortion number two... */
-       if(mreg & VIKING_MMODE) {
+       if (mreg & VIKING_MMODE) {
                srmmu_name = "TI Viking";
                viking_mxcc_present = 0;
                msi_set_sync();
@@ -1467,8 +1464,8 @@ static void __init get_srmmu_type(void)
        }
 
        /* Second, check for HyperSparc or Cypress. */
-       if(mod_typ == 1) {
-               switch(mod_rev) {
+       if (mod_typ == 1) {
+               switch (mod_rev) {
                case 7:
                        /* UP or MP Hypersparc */
                        init_hypersparc();
@@ -1488,9 +1485,8 @@ static void __init get_srmmu_type(void)
                }
                return;
        }
-       
-       /*
-        * Now Fujitsu TurboSparc. It might happen that it is
+
+       /* Now Fujitsu TurboSparc. It might happen that it is
         * in Swift emulation mode, so we will check later...
         */
        if (psr_typ == 0 && psr_vers == 5) {
@@ -1499,15 +1495,15 @@ static void __init get_srmmu_type(void)
        }
 
        /* Next check for Fujitsu Swift. */
-       if(psr_typ == 0 && psr_vers == 4) {
+       if (psr_typ == 0 && psr_vers == 4) {
                phandle cpunode;
                char node_str[128];
 
                /* Look if it is not a TurboSparc emulating Swift... */
                cpunode = prom_getchild(prom_root_node);
-               while((cpunode = prom_getsibling(cpunode)) != 0) {
+               while ((cpunode = prom_getsibling(cpunode)) != 0) {
                        prom_getstring(cpunode, "device_type", node_str, sizeof(node_str));
-                       if(!strcmp(node_str, "cpu")) {
+                       if (!strcmp(node_str, "cpu")) {
                                if (!prom_getintdefault(cpunode, "psr-implementation", 1) &&
                                    prom_getintdefault(cpunode, "psr-version", 1) == 5) {
                                        init_turbosparc();
@@ -1516,13 +1512,13 @@ static void __init get_srmmu_type(void)
                                break;
                        }
                }
-               
+
                init_swift();
                return;
        }
 
        /* Now the Viking family of srmmu. */
-       if(psr_typ == 4 &&
+       if (psr_typ == 4 &&
           ((psr_vers == 0) ||
            ((psr_vers == 1) && (mod_typ == 0) && (mod_rev == 0)))) {
                init_viking();
@@ -1530,7 +1526,7 @@ static void __init get_srmmu_type(void)
        }
 
        /* Finally the Tsunami. */
-       if(psr_typ == 4 && psr_vers == 1 && (mod_typ || mod_rev)) {
+       if (psr_typ == 4 && psr_vers == 1 && (mod_typ || mod_rev)) {
                init_tsunami();
                return;
        }