From 28b4af729fc4f7ee748c4bccb50ba5a6066418eb Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Mon, 14 Sep 2015 18:43:42 -0700 Subject: [PATCH] ARC: mm: PAE40: switch to using phys_addr_t for physical addresses That way a single flip of phys_addr_t to 64 bit ensures all places dealing with physical addresses get correct data Signed-off-by: Vineet Gupta --- arch/arc/include/asm/cacheflush.h | 8 ++++---- arch/arc/mm/cache.c | 26 +++++++++++++------------- arch/arc/mm/tlb.c | 10 +++++----- 3 files changed, 22 insertions(+), 22 deletions(-) diff --git a/arch/arc/include/asm/cacheflush.h b/arch/arc/include/asm/cacheflush.h index 0992d3dbcc65..fbe3587c4f36 100644 --- a/arch/arc/include/asm/cacheflush.h +++ b/arch/arc/include/asm/cacheflush.h @@ -31,10 +31,10 @@ void flush_cache_all(void); -void flush_icache_range(unsigned long start, unsigned long end); -void __sync_icache_dcache(unsigned long paddr, unsigned long vaddr, int len); -void __inv_icache_page(unsigned long paddr, unsigned long vaddr); -void __flush_dcache_page(unsigned long paddr, unsigned long vaddr); +void flush_icache_range(unsigned long kstart, unsigned long kend); +void __sync_icache_dcache(phys_addr_t paddr, unsigned long vaddr, int len); +void __inv_icache_page(phys_addr_t paddr, unsigned long vaddr); +void __flush_dcache_page(phys_addr_t paddr, unsigned long vaddr); #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c index 521fb2bf90bd..91e28d791d56 100644 --- a/arch/arc/mm/cache.c +++ b/arch/arc/mm/cache.c @@ -25,7 +25,7 @@ static int l2_line_sz; int ioc_exists; volatile int slc_enable = 1, ioc_enable = 1; -void (*_cache_line_loop_ic_fn)(unsigned long paddr, unsigned long vaddr, +void (*_cache_line_loop_ic_fn)(phys_addr_t paddr, unsigned long vaddr, unsigned long sz, const int cacheop); void (*__dma_cache_wback_inv)(unsigned long start, unsigned long sz); @@ -216,7 +216,7 @@ void read_decode_cache_bcr(void) */ static inline -void __cache_line_loop_v2(unsigned long paddr, unsigned long vaddr, +void __cache_line_loop_v2(phys_addr_t paddr, unsigned long vaddr, unsigned long sz, const int op) { unsigned int aux_cmd; @@ -254,7 +254,7 @@ void __cache_line_loop_v2(unsigned long paddr, unsigned long vaddr, } static inline -void __cache_line_loop_v3(unsigned long paddr, unsigned long vaddr, +void __cache_line_loop_v3(phys_addr_t paddr, unsigned long vaddr, unsigned long sz, const int op) { unsigned int aux_cmd, aux_tag; @@ -308,7 +308,7 @@ void __cache_line_loop_v3(unsigned long paddr, unsigned long vaddr, * specified in PTAG (similar to MMU v3) */ static inline -void __cache_line_loop_v4(unsigned long paddr, unsigned long vaddr, +void __cache_line_loop_v4(phys_addr_t paddr, unsigned long vaddr, unsigned long sz, const int cacheop) { unsigned int aux_cmd; @@ -412,7 +412,7 @@ static inline void __dc_entire_op(const int op) /* * D-Cache Line ops: Per Line INV (discard or wback+discard) or FLUSH (wback) */ -static inline void __dc_line_op(unsigned long paddr, unsigned long vaddr, +static inline void __dc_line_op(phys_addr_t paddr, unsigned long vaddr, unsigned long sz, const int op) { unsigned long flags; @@ -445,7 +445,7 @@ static inline void __ic_entire_inv(void) } static inline void -__ic_line_inv_vaddr_local(unsigned long paddr, unsigned long vaddr, +__ic_line_inv_vaddr_local(phys_addr_t paddr, unsigned long vaddr, unsigned long sz) { unsigned long flags; @@ -462,7 +462,7 @@ __ic_line_inv_vaddr_local(unsigned long paddr, unsigned long vaddr, #else struct ic_inv_args { - unsigned long paddr, vaddr; + phys_addr_t paddr, vaddr; int sz; }; @@ -473,7 +473,7 @@ static void __ic_line_inv_vaddr_helper(void *info) __ic_line_inv_vaddr_local(ic_inv->paddr, ic_inv->vaddr, ic_inv->sz); } -static void __ic_line_inv_vaddr(unsigned long paddr, unsigned long vaddr, +static void __ic_line_inv_vaddr(phys_addr_t paddr, unsigned long vaddr, unsigned long sz) { struct ic_inv_args ic_inv = { @@ -494,7 +494,7 @@ static void __ic_line_inv_vaddr(unsigned long paddr, unsigned long vaddr, #endif /* CONFIG_ARC_HAS_ICACHE */ -noinline void slc_op(unsigned long paddr, unsigned long sz, const int op) +noinline void slc_op(phys_addr_t paddr, unsigned long sz, const int op) { #ifdef CONFIG_ISA_ARCV2 /* @@ -584,7 +584,7 @@ void flush_dcache_page(struct page *page) } else if (page_mapped(page)) { /* kernel reading from page with U-mapping */ - unsigned long paddr = (unsigned long)page_address(page); + phys_addr_t paddr = (unsigned long)page_address(page); unsigned long vaddr = page->index << PAGE_CACHE_SHIFT; if (addr_not_cache_congruent(paddr, vaddr)) @@ -732,14 +732,14 @@ EXPORT_SYMBOL(flush_icache_range); * builtin kernel page will not have any virtual mappings. * kprobe on loadable module will be kernel vaddr. */ -void __sync_icache_dcache(unsigned long paddr, unsigned long vaddr, int len) +void __sync_icache_dcache(phys_addr_t paddr, unsigned long vaddr, int len) { __dc_line_op(paddr, vaddr, len, OP_FLUSH_N_INV); __ic_line_inv_vaddr(paddr, vaddr, len); } /* wrapper to compile time eliminate alignment checks in flush loop */ -void __inv_icache_page(unsigned long paddr, unsigned long vaddr) +void __inv_icache_page(phys_addr_t paddr, unsigned long vaddr) { __ic_line_inv_vaddr(paddr, vaddr, PAGE_SIZE); } @@ -748,7 +748,7 @@ void __inv_icache_page(unsigned long paddr, unsigned long vaddr) * wrapper to clearout kernel or userspace mappings of a page * For kernel mappings @vaddr == @paddr */ -void __flush_dcache_page(unsigned long paddr, unsigned long vaddr) +void __flush_dcache_page(phys_addr_t paddr, unsigned long vaddr) { __dc_line_op(paddr, vaddr & PAGE_MASK, PAGE_SIZE, OP_FLUSH_N_INV); } diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c index 5dcae21dd8dc..b5f28dc0f924 100644 --- a/arch/arc/mm/tlb.c +++ b/arch/arc/mm/tlb.c @@ -499,7 +499,7 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end) /* * Routine to create a TLB entry */ -void create_tlb(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) +void create_tlb(struct vm_area_struct *vma, unsigned long vaddr, pte_t *ptep) { unsigned long flags; unsigned int asid_or_sasid, rwx; @@ -535,9 +535,9 @@ void create_tlb(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) local_irq_save(flags); - tlb_paranoid_check(asid_mm(vma->vm_mm, smp_processor_id()), address); + tlb_paranoid_check(asid_mm(vma->vm_mm, smp_processor_id()), vaddr); - address &= PAGE_MASK; + vaddr &= PAGE_MASK; /* update this PTE credentials */ pte_val(*ptep) |= (_PAGE_PRESENT | _PAGE_ACCESSED); @@ -547,7 +547,7 @@ void create_tlb(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) /* ASID for this task */ asid_or_sasid = read_aux_reg(ARC_REG_PID) & 0xff; - pd0 = address | asid_or_sasid | (pte_val(*ptep) & PTE_BITS_IN_PD0); + pd0 = vaddr | asid_or_sasid | (pte_val(*ptep) & PTE_BITS_IN_PD0); /* * ARC MMU provides fully orthogonal access bits for K/U mode, @@ -583,7 +583,7 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long vaddr_unaligned, pte_t *ptep) { unsigned long vaddr = vaddr_unaligned & PAGE_MASK; - unsigned long paddr = pte_val(*ptep) & PAGE_MASK; + phys_addr_t paddr = pte_val(*ptep) & PAGE_MASK; struct page *page = pfn_to_page(pte_pfn(*ptep)); create_tlb(vma, vaddr, ptep); -- GitLab