From 27a8b944fe91503ba15241d9a8504a34af0009fa Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" <willy@infradead.org> Date: Wed, 2 Aug 2023 16:13:44 +0100 Subject: microblaze: implement the new page table range API Rename PFN_SHIFT_OFFSET to PTE_PFN_SHIFT. Change the calling convention for set_pte() to be the same as other architectures. Add update_mmu_cache_range(), flush_icache_pages() and flush_dcache_folio(). [arnd@arndb.de: mark flush_dcache_folio() inline] Link: https://lkml.kernel.org/r/20230810141947.1236730-9-arnd@kernel.org Link: https://lkml.kernel.org/r/20230802151406.3735276-17-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> Cc: Michal Simek <monstr@monstr.eu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> --- arch/microblaze/include/asm/cacheflush.h | 8 ++++++++ arch/microblaze/include/asm/pgtable.h | 15 ++++----------- arch/microblaze/include/asm/tlbflush.h | 4 +++- 3 files changed, 15 insertions(+), 12 deletions(-) (limited to 'arch/microblaze') diff --git a/arch/microblaze/include/asm/cacheflush.h b/arch/microblaze/include/asm/cacheflush.h index 39f8fb6768d8..ffa2cf3893e4 100644 --- a/arch/microblaze/include/asm/cacheflush.h +++ b/arch/microblaze/include/asm/cacheflush.h @@ -74,6 +74,14 @@ do { \ flush_dcache_range((unsigned) (addr), (unsigned) (addr) + PAGE_SIZE); \ } while (0); +static inline void flush_dcache_folio(struct folio *folio) +{ + unsigned long addr = folio_pfn(folio) << PAGE_SHIFT; + + flush_dcache_range(addr, addr + folio_size(folio)); +} +#define flush_dcache_folio flush_dcache_folio + #define flush_cache_page(vma, vmaddr, pfn) \ flush_dcache_range(pfn << PAGE_SHIFT, (pfn << PAGE_SHIFT) + PAGE_SIZE); diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h index d1b8272abcd9..6f9b99082518 100644 --- a/arch/microblaze/include/asm/pgtable.h +++ b/arch/microblaze/include/asm/pgtable.h @@ -230,12 +230,12 @@ extern unsigned long empty_zero_page[1024]; #define pte_page(x) (mem_map + (unsigned long) \ ((pte_val(x) - memory_start) >> PAGE_SHIFT)) -#define PFN_SHIFT_OFFSET (PAGE_SHIFT) +#define PFN_PTE_SHIFT PAGE_SHIFT -#define pte_pfn(x) (pte_val(x) >> PFN_SHIFT_OFFSET) +#define pte_pfn(x) (pte_val(x) >> PFN_PTE_SHIFT) #define pfn_pte(pfn, prot) \ - __pte(((pte_basic_t)(pfn) << PFN_SHIFT_OFFSET) | pgprot_val(prot)) + __pte(((pte_basic_t)(pfn) << PFN_PTE_SHIFT) | pgprot_val(prot)) #ifndef __ASSEMBLY__ /* @@ -330,14 +330,7 @@ static inline unsigned long pte_update(pte_t *p, unsigned long clr, /* * set_pte stores a linux PTE into the linux page table. */ -static inline void set_pte(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pte) -{ - *ptep = pte; -} - -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pte) +static inline void set_pte(pte_t *ptep, pte_t pte) { *ptep = pte; } diff --git a/arch/microblaze/include/asm/tlbflush.h b/arch/microblaze/include/asm/tlbflush.h index 2038168ed128..a31ae9d44083 100644 --- a/arch/microblaze/include/asm/tlbflush.h +++ b/arch/microblaze/include/asm/tlbflush.h @@ -33,7 +33,9 @@ static inline void local_flush_tlb_range(struct vm_area_struct *vma, #define flush_tlb_kernel_range(start, end) do { } while (0) -#define update_mmu_cache(vma, addr, ptep) do { } while (0) +#define update_mmu_cache_range(vmf, vma, addr, ptep, nr) do { } while (0) +#define update_mmu_cache(vma, addr, pte) \ + update_mmu_cache_range(NULL, vma, addr, ptep, 1) #define flush_tlb_all local_flush_tlb_all #define flush_tlb_mm local_flush_tlb_mm -- cgit v1.2.3