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authorMatthew Wilcox (Oracle) <willy@infradead.org>2023-08-02 18:13:44 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-08-25 02:20:21 +0300
commit27a8b944fe91503ba15241d9a8504a34af0009fa (patch)
treef0d98a7d2c1c547b8ec73aab30438bb23c473ed9
parent5553b15a4bbba8039e1f31b63642048286f540dc (diff)
downloadlinux-27a8b944fe91503ba15241d9a8504a34af0009fa.tar.xz
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>
-rw-r--r--arch/microblaze/include/asm/cacheflush.h8
-rw-r--r--arch/microblaze/include/asm/pgtable.h15
-rw-r--r--arch/microblaze/include/asm/tlbflush.h4
3 files changed, 15 insertions, 12 deletions
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