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authorChristophe Leroy <christophe.leroy@csgroup.eu>2023-09-25 20:31:20 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2023-10-19 17:12:44 +1100
commitda9554e0fe3c7b46912a361a803b50f2655ff30f (patch)
treeaf25724a05e90df6fff859521faaf1c92b61a61f /arch/powerpc/include/asm/book3s
parent93f81f6eea10f497e892c52998a2194b4e16c91d (diff)
powerpc: Refactor update_mmu_cache_range()
On nohash, this function voids except for E500 with hugepages. On book3s, this function is for hash MMUs only. Combine those tests and rename E500 update_mmu_cache_range() as __update_mmu_cache() which gets called by update_mmu_cache_range(). Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/b029842cb6783cbeb43d202e69a90341d65295a4.1695659959.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/book3s')
-rw-r--r--arch/powerpc/include/asm/book3s/pgtable.h24
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/powerpc/include/asm/book3s/pgtable.h b/arch/powerpc/include/asm/book3s/pgtable.h
index 6f4578daea6c..f42d68c6b314 100644
--- a/arch/powerpc/include/asm/book3s/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/pgtable.h
@@ -8,28 +8,4 @@
#include <asm/book3s/32/pgtable.h>
#endif
-#ifndef __ASSEMBLY__
-void __update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep);
-
-/*
- * This gets called at the end of handling a page fault, when
- * the kernel has put a new PTE into the page table for the process.
- * We use it to ensure coherency between the i-cache and d-cache
- * for the page which has just been mapped in.
- * On machines which use an MMU hash table, we use this to put a
- * corresponding HPTE into the hash table ahead of time, instead of
- * waiting for the inevitable extra hash-table miss exception.
- */
-static inline void update_mmu_cache_range(struct vm_fault *vmf,
- struct vm_area_struct *vma, unsigned long address,
- pte_t *ptep, unsigned int nr)
-{
- if (IS_ENABLED(CONFIG_PPC32) && !mmu_has_feature(MMU_FTR_HPTE_TABLE))
- return;
- if (radix_enabled())
- return;
- __update_mmu_cache(vma, address, ptep);
-}
-
-#endif /* __ASSEMBLY__ */
#endif