diff options
Diffstat (limited to 'arch/mips/mm')
-rw-r--r-- | arch/mips/mm/Makefile | 2 | ||||
-rw-r--r-- | arch/mips/mm/c-tx39.c | 18 | ||||
-rw-r--r-- | arch/mips/mm/cerr-sb1.c | 124 | ||||
-rw-r--r-- | arch/mips/mm/dma-default.c | 8 | ||||
-rw-r--r-- | arch/mips/mm/ioremap.c | 96 |
5 files changed, 160 insertions, 88 deletions
diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile index de5727385bc..293697b1560 100644 --- a/arch/mips/mm/Makefile +++ b/arch/mips/mm/Makefile @@ -31,5 +31,3 @@ obj-$(CONFIG_IP22_CPU_SCACHE) += sc-ip22.o obj-$(CONFIG_R5000_CPU_SCACHE) += sc-r5k.o obj-$(CONFIG_RM7000_CPU_SCACHE) += sc-rm7k.o obj-$(CONFIG_MIPS_CPU_SCACHE) += sc-mips.o - -EXTRA_AFLAGS := $(CFLAGS) diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c index f32ebde30cc..560a6de9655 100644 --- a/arch/mips/mm/c-tx39.c +++ b/arch/mips/mm/c-tx39.c @@ -128,7 +128,6 @@ static inline void tx39_flush_cache_all(void) return; tx39_blast_dcache(); - tx39_blast_icache(); } static inline void tx39___flush_cache_all(void) @@ -142,24 +141,19 @@ static void tx39_flush_cache_mm(struct mm_struct *mm) if (!cpu_has_dc_aliases) return; - if (cpu_context(smp_processor_id(), mm) != 0) { - tx39_flush_cache_all(); - } + if (cpu_context(smp_processor_id(), mm) != 0) + tx39_blast_dcache(); } static void tx39_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - int exec; - + if (!cpu_has_dc_aliases) + return; if (!(cpu_context(smp_processor_id(), vma->vm_mm))) return; - exec = vma->vm_flags & VM_EXEC; - if (cpu_has_dc_aliases || exec) - tx39_blast_dcache(); - if (exec) - tx39_blast_icache(); + tx39_blast_dcache(); } static void tx39_flush_cache_page(struct vm_area_struct *vma, unsigned long page, unsigned long pfn) @@ -218,7 +212,7 @@ static void tx39_flush_cache_page(struct vm_area_struct *vma, unsigned long page static void local_tx39_flush_data_cache_page(void * addr) { - tx39_blast_dcache_page(addr); + tx39_blast_dcache_page((unsigned long)addr); } static void tx39_flush_data_cache_page(unsigned long addr) diff --git a/arch/mips/mm/cerr-sb1.c b/arch/mips/mm/cerr-sb1.c index e19fbb9ee47..11a916629d3 100644 --- a/arch/mips/mm/cerr-sb1.c +++ b/arch/mips/mm/cerr-sb1.c @@ -77,66 +77,66 @@ static uint32_t extract_dc(unsigned short addr, int data); static inline void breakout_errctl(unsigned int val) { if (val & CP0_ERRCTL_RECOVERABLE) - prom_printf(" recoverable"); + printk(" recoverable"); if (val & CP0_ERRCTL_DCACHE) - prom_printf(" dcache"); + printk(" dcache"); if (val & CP0_ERRCTL_ICACHE) - prom_printf(" icache"); + printk(" icache"); if (val & CP0_ERRCTL_MULTIBUS) - prom_printf(" multiple-buserr"); - prom_printf("\n"); + printk(" multiple-buserr"); + printk("\n"); } static inline void breakout_cerri(unsigned int val) { if (val & CP0_CERRI_TAG_PARITY) - prom_printf(" tag-parity"); + printk(" tag-parity"); if (val & CP0_CERRI_DATA_PARITY) - prom_printf(" data-parity"); + printk(" data-parity"); if (val & CP0_CERRI_EXTERNAL) - prom_printf(" external"); - prom_printf("\n"); + printk(" external"); + printk("\n"); } static inline void breakout_cerrd(unsigned int val) { switch (val & CP0_CERRD_CAUSES) { case CP0_CERRD_LOAD: - prom_printf(" load,"); + printk(" load,"); break; case CP0_CERRD_STORE: - prom_printf(" store,"); + printk(" store,"); break; case CP0_CERRD_FILLWB: - prom_printf(" fill/wb,"); + printk(" fill/wb,"); break; case CP0_CERRD_COHERENCY: - prom_printf(" coherency,"); + printk(" coherency,"); break; case CP0_CERRD_DUPTAG: - prom_printf(" duptags,"); + printk(" duptags,"); break; default: - prom_printf(" NO CAUSE,"); + printk(" NO CAUSE,"); break; } if (!(val & CP0_CERRD_TYPES)) - prom_printf(" NO TYPE"); + printk(" NO TYPE"); else { if (val & CP0_CERRD_MULTIPLE) - prom_printf(" multi-err"); + printk(" multi-err"); if (val & CP0_CERRD_TAG_STATE) - prom_printf(" tag-state"); + printk(" tag-state"); if (val & CP0_CERRD_TAG_ADDRESS) - prom_printf(" tag-address"); + printk(" tag-address"); if (val & CP0_CERRD_DATA_SBE) - prom_printf(" data-SBE"); + printk(" data-SBE"); if (val & CP0_CERRD_DATA_DBE) - prom_printf(" data-DBE"); + printk(" data-DBE"); if (val & CP0_CERRD_EXTERNAL) - prom_printf(" external"); + printk(" external"); } - prom_printf("\n"); + printk("\n"); } #ifndef CONFIG_SIBYTE_BUS_WATCHER @@ -157,18 +157,18 @@ static void check_bus_watcher(void) l2_tag = in64(IO_SPACE_BASE | A_L2_ECC_TAG); #endif memio_err = csr_in32(IOADDR(A_BUS_MEM_IO_ERRORS)); - prom_printf("Bus watcher error counters: %08x %08x\n", l2_err, memio_err); - prom_printf("\nLast recorded signature:\n"); - prom_printf("Request %02x from %d, answered by %d with Dcode %d\n", + printk("Bus watcher error counters: %08x %08x\n", l2_err, memio_err); + printk("\nLast recorded signature:\n"); + printk("Request %02x from %d, answered by %d with Dcode %d\n", (unsigned int)(G_SCD_BERR_TID(status) & 0x3f), (int)(G_SCD_BERR_TID(status) >> 6), (int)G_SCD_BERR_RID(status), (int)G_SCD_BERR_DCODE(status)); #ifdef DUMP_L2_ECC_TAG_ON_ERROR - prom_printf("Last L2 tag w/ bad ECC: %016llx\n", l2_tag); + printk("Last L2 tag w/ bad ECC: %016llx\n", l2_tag); #endif } else { - prom_printf("Bus watcher indicates no error\n"); + printk("Bus watcher indicates no error\n"); } } #else @@ -187,11 +187,11 @@ asmlinkage void sb1_cache_error(void) #else csr_out32(M_SCD_TRACE_CFG_FREEZE, IO_SPACE_BASE | A_SCD_TRACE_CFG); #endif - prom_printf("Trace buffer frozen\n"); + printk("Trace buffer frozen\n"); #endif - prom_printf("Cache error exception on CPU %x:\n", - (read_c0_prid() >> 25) & 0x7); + printk("Cache error exception on CPU %x:\n", + (read_c0_prid() >> 25) & 0x7); __asm__ __volatile__ ( " .set push\n\t" @@ -209,43 +209,43 @@ asmlinkage void sb1_cache_error(void) "=r" (dpahi), "=r" (dpalo), "=r" (eepc)); cerr_dpa = (((uint64_t)dpahi) << 32) | dpalo; - prom_printf(" c0_errorepc == %08x\n", eepc); - prom_printf(" c0_errctl == %08x", errctl); + printk(" c0_errorepc == %08x\n", eepc); + printk(" c0_errctl == %08x", errctl); breakout_errctl(errctl); if (errctl & CP0_ERRCTL_ICACHE) { - prom_printf(" c0_cerr_i == %08x", cerr_i); + printk(" c0_cerr_i == %08x", cerr_i); breakout_cerri(cerr_i); if (CP0_CERRI_IDX_VALID(cerr_i)) { /* Check index of EPC, allowing for delay slot */ if (((eepc & SB1_CACHE_INDEX_MASK) != (cerr_i & SB1_CACHE_INDEX_MASK)) && ((eepc & SB1_CACHE_INDEX_MASK) != ((cerr_i & SB1_CACHE_INDEX_MASK) - 4))) - prom_printf(" cerr_i idx doesn't match eepc\n"); + printk(" cerr_i idx doesn't match eepc\n"); else { res = extract_ic(cerr_i & SB1_CACHE_INDEX_MASK, (cerr_i & CP0_CERRI_DATA) != 0); if (!(res & cerr_i)) - prom_printf("...didn't see indicated icache problem\n"); + printk("...didn't see indicated icache problem\n"); } } } if (errctl & CP0_ERRCTL_DCACHE) { - prom_printf(" c0_cerr_d == %08x", cerr_d); + printk(" c0_cerr_d == %08x", cerr_d); breakout_cerrd(cerr_d); if (CP0_CERRD_DPA_VALID(cerr_d)) { - prom_printf(" c0_cerr_dpa == %010llx\n", cerr_dpa); + printk(" c0_cerr_dpa == %010llx\n", cerr_dpa); if (!CP0_CERRD_IDX_VALID(cerr_d)) { res = extract_dc(cerr_dpa & SB1_CACHE_INDEX_MASK, (cerr_d & CP0_CERRD_DATA) != 0); if (!(res & cerr_d)) - prom_printf("...didn't see indicated dcache problem\n"); + printk("...didn't see indicated dcache problem\n"); } else { if ((cerr_dpa & SB1_CACHE_INDEX_MASK) != (cerr_d & SB1_CACHE_INDEX_MASK)) - prom_printf(" cerr_d idx doesn't match cerr_dpa\n"); + printk(" cerr_d idx doesn't match cerr_dpa\n"); else { res = extract_dc(cerr_d & SB1_CACHE_INDEX_MASK, (cerr_d & CP0_CERRD_DATA) != 0); if (!(res & cerr_d)) - prom_printf("...didn't see indicated problem\n"); + printk("...didn't see indicated problem\n"); } } } @@ -334,7 +334,7 @@ static uint32_t extract_ic(unsigned short addr, int data) uint8_t lru; int res = 0; - prom_printf("Icache index 0x%04x ", addr); + printk("Icache index 0x%04x ", addr); for (way = 0; way < 4; way++) { /* Index-load-tag-I */ __asm__ __volatile__ ( @@ -354,7 +354,7 @@ static uint32_t extract_ic(unsigned short addr, int data) taglo = ((unsigned long long)taglohi << 32) | taglolo; if (way == 0) { lru = (taghi >> 14) & 0xff; - prom_printf("[Bank %d Set 0x%02x] LRU > %d %d %d %d > MRU\n", + printk("[Bank %d Set 0x%02x] LRU > %d %d %d %d > MRU\n", ((addr >> 5) & 0x3), /* bank */ ((addr >> 7) & 0x3f), /* index */ (lru & 0x3), @@ -369,19 +369,19 @@ static uint32_t extract_ic(unsigned short addr, int data) if (valid) { tlo_tmp = taglo & 0xfff3ff; if (((taglo >> 10) & 1) ^ range_parity(tlo_tmp, 23, 0)) { - prom_printf(" ** bad parity in VTag0/G/ASID\n"); + printk(" ** bad parity in VTag0/G/ASID\n"); res |= CP0_CERRI_TAG_PARITY; } if (((taglo >> 11) & 1) ^ range_parity(taglo, 63, 24)) { - prom_printf(" ** bad parity in R/VTag1\n"); + printk(" ** bad parity in R/VTag1\n"); res |= CP0_CERRI_TAG_PARITY; } } if (valid ^ ((taghi >> 27) & 1)) { - prom_printf(" ** bad parity for valid bit\n"); + printk(" ** bad parity for valid bit\n"); res |= CP0_CERRI_TAG_PARITY; } - prom_printf(" %d [VA %016llx] [Vld? %d] raw tags: %08X-%016llX\n", + printk(" %d [VA %016llx] [Vld? %d] raw tags: %08X-%016llX\n", way, va, valid, taghi, taglo); if (data) { @@ -407,21 +407,21 @@ static uint32_t extract_ic(unsigned short addr, int data) : "r" ((way << 13) | addr | (offset << 3))); predecode = (datahi >> 8) & 0xff; if (((datahi >> 16) & 1) != (uint32_t)range_parity(predecode, 7, 0)) { - prom_printf(" ** bad parity in predecode\n"); + printk(" ** bad parity in predecode\n"); res |= CP0_CERRI_DATA_PARITY; } /* XXXKW should/could check predecode bits themselves */ if (((datahi >> 4) & 0xf) ^ inst_parity(insta)) { - prom_printf(" ** bad parity in instruction a\n"); + printk(" ** bad parity in instruction a\n"); res |= CP0_CERRI_DATA_PARITY; } if ((datahi & 0xf) ^ inst_parity(instb)) { - prom_printf(" ** bad parity in instruction b\n"); + printk(" ** bad parity in instruction b\n"); res |= CP0_CERRI_DATA_PARITY; } - prom_printf(" %05X-%08X%08X", datahi, insta, instb); + printk(" %05X-%08X%08X", datahi, insta, instb); } - prom_printf("\n"); + printk("\n"); } } return res; @@ -489,7 +489,7 @@ static uint32_t extract_dc(unsigned short addr, int data) uint8_t ecc, lru; int res = 0; - prom_printf("Dcache index 0x%04x ", addr); + printk("Dcache index 0x%04x ", addr); for (way = 0; way < 4; way++) { __asm__ __volatile__ ( " .set push\n\t" @@ -509,7 +509,7 @@ static uint32_t extract_dc(unsigned short addr, int data) pa = (taglo & 0xFFFFFFE000ULL) | addr; if (way == 0) { lru = (taghi >> 14) & 0xff; - prom_printf("[Bank %d Set 0x%02x] LRU > %d %d %d %d > MRU\n", + printk("[Bank %d Set 0x%02x] LRU > %d %d %d %d > MRU\n", ((addr >> 11) & 0x2) | ((addr >> 5) & 1), /* bank */ ((addr >> 6) & 0x3f), /* index */ (lru & 0x3), @@ -519,15 +519,15 @@ static uint32_t extract_dc(unsigned short addr, int data) } state = (taghi >> 25) & 0x1f; valid = DC_TAG_VALID(state); - prom_printf(" %d [PA %010llx] [state %s (%02x)] raw tags: %08X-%016llX\n", + printk(" %d [PA %010llx] [state %s (%02x)] raw tags: %08X-%016llX\n", way, pa, dc_state_str(state), state, taghi, taglo); if (valid) { if (((taglo >> 11) & 1) ^ range_parity(taglo, 39, 26)) { - prom_printf(" ** bad parity in PTag1\n"); + printk(" ** bad parity in PTag1\n"); res |= CP0_CERRD_TAG_ADDRESS; } if (((taglo >> 10) & 1) ^ range_parity(taglo, 25, 13)) { - prom_printf(" ** bad parity in PTag0\n"); + printk(" ** bad parity in PTag0\n"); res |= CP0_CERRD_TAG_ADDRESS; } } else { @@ -567,13 +567,13 @@ static uint32_t extract_dc(unsigned short addr, int data) } res |= (bits == 1) ? CP0_CERRD_DATA_SBE : CP0_CERRD_DATA_DBE; } - prom_printf(" %02X-%016llX", datahi, datalo); + printk(" %02X-%016llX", datahi, datalo); } - prom_printf("\n"); + printk("\n"); if (bad_ecc) - prom_printf(" dwords w/ bad ECC: %d %d %d %d\n", - !!(bad_ecc & 8), !!(bad_ecc & 4), - !!(bad_ecc & 2), !!(bad_ecc & 1)); + printk(" dwords w/ bad ECC: %d %d %d %d\n", + !!(bad_ecc & 8), !!(bad_ecc & 4), + !!(bad_ecc & 2), !!(bad_ecc & 1)); } } return res; diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c index 4a32e939698..f503d02e403 100644 --- a/arch/mips/mm/dma-default.c +++ b/arch/mips/mm/dma-default.c @@ -246,10 +246,10 @@ void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, { BUG_ON(direction == DMA_NONE); - if (cpu_is_noncoherent_r10000(dev)) { + if (!plat_device_is_coherent(dev)) { unsigned long addr; - addr = plat_dma_addr_to_phys(dma_handle); + addr = PAGE_OFFSET + plat_dma_addr_to_phys(dma_handle); __dma_sync(addr, size, direction); } } @@ -276,7 +276,7 @@ void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle, { BUG_ON(direction == DMA_NONE); - if (cpu_is_noncoherent_r10000(dev)) { + if (!plat_device_is_coherent(dev)) { unsigned long addr; addr = PAGE_OFFSET + plat_dma_addr_to_phys(dma_handle); @@ -295,7 +295,7 @@ void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, /* Make sure that gcc doesn't leave the empty loop body. */ for (i = 0; i < nelems; i++, sg++) { - if (!plat_device_is_coherent(dev)) + if (cpu_is_noncoherent_r10000(dev)) __dma_sync((unsigned long)page_address(sg->page), sg->length, direction); plat_unmap_dma_mem(sg->dma_address); diff --git a/arch/mips/mm/ioremap.c b/arch/mips/mm/ioremap.c index fc2c96f0a1f..cea7d0ea36e 100644 --- a/arch/mips/mm/ioremap.c +++ b/arch/mips/mm/ioremap.c @@ -6,13 +6,98 @@ * (C) Copyright 1995 1996 Linus Torvalds * (C) Copyright 2001, 2002 Ralf Baechle */ -#include <linux/mm.h> #include <linux/module.h> #include <asm/addrspace.h> #include <asm/byteorder.h> #include <linux/vmalloc.h> -#include <linux/io.h> +#include <asm/cacheflush.h> +#include <asm/io.h> +#include <asm/tlbflush.h> + +static inline void remap_area_pte(pte_t * pte, unsigned long address, + phys_t size, phys_t phys_addr, unsigned long flags) +{ + phys_t end; + unsigned long pfn; + pgprot_t pgprot = __pgprot(_PAGE_GLOBAL | _PAGE_PRESENT | __READABLE + | __WRITEABLE | flags); + + address &= ~PMD_MASK; + end = address + size; + if (end > PMD_SIZE) + end = PMD_SIZE; + if (address >= end) + BUG(); + pfn = phys_addr >> PAGE_SHIFT; + do { + if (!pte_none(*pte)) { + printk("remap_area_pte: page already exists\n"); + BUG(); + } + set_pte(pte, pfn_pte(pfn, pgprot)); + address += PAGE_SIZE; + pfn++; + pte++; + } while (address && (address < end)); +} + +static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, + phys_t size, phys_t phys_addr, unsigned long flags) +{ + phys_t end; + + address &= ~PGDIR_MASK; + end = address + size; + if (end > PGDIR_SIZE) + end = PGDIR_SIZE; + phys_addr -= address; + if (address >= end) + BUG(); + do { + pte_t * pte = pte_alloc_kernel(pmd, address); + if (!pte) + return -ENOMEM; + remap_area_pte(pte, address, end - address, address + phys_addr, flags); + address = (address + PMD_SIZE) & PMD_MASK; + pmd++; + } while (address && (address < end)); + return 0; +} + +static int remap_area_pages(unsigned long address, phys_t phys_addr, + phys_t size, unsigned long flags) +{ + int error; + pgd_t * dir; + unsigned long end = address + size; + + phys_addr -= address; + dir = pgd_offset(&init_mm, address); + flush_cache_all(); + if (address >= end) + BUG(); + do { + pud_t *pud; + pmd_t *pmd; + + error = -ENOMEM; + pud = pud_alloc(&init_mm, dir, address); + if (!pud) + break; + pmd = pmd_alloc(&init_mm, pud, address); + if (!pmd) + break; + if (remap_area_pmd(pmd, address, end - address, + phys_addr + address, flags)) + break; + error = 0; + address = (address + PGDIR_SIZE) & PGDIR_MASK; + dir++; + } while (address && (address < end)); + flush_tlb_all(); + return error; +} /* * Generic mapping function (not visible outside): @@ -36,7 +121,6 @@ void __iomem * __ioremap(phys_t phys_addr, phys_t size, unsigned long flags) unsigned long offset; phys_t last_addr; void * addr; - pgprot_t pgprot; phys_addr = fixup_bigphys_addr(phys_addr, size); @@ -68,9 +152,6 @@ void __iomem * __ioremap(phys_t phys_addr, phys_t size, unsigned long flags) return NULL; } - pgprot = __pgprot(_PAGE_GLOBAL | _PAGE_PRESENT | __READABLE - | __WRITEABLE | flags); - /* * Mappings have to be page-aligned */ @@ -85,8 +166,7 @@ void __iomem * __ioremap(phys_t phys_addr, phys_t size, unsigned long flags) if (!area) return NULL; addr = area->addr; - if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size, - phys_addr, pgprot)) { + if (remap_area_pages((unsigned long) addr, phys_addr, size, flags)) { vunmap(addr); return NULL; } |