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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-08-20 16:07:18 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-08-27 05:03:35 +0200 |
| commit | 191e42063a7241e5c3a1d1f36896a20b147517e9 (patch) | |
| tree | c24c31be3b9304daa91f7399ef622f2adcdc7d91 /arch/powerpc/mm/book3s64 | |
| parent | powerpc/mm: Move ioremap functions out of pgtable_32/64.c (diff) | |
| download | linux-191e42063a7241e5c3a1d1f36896a20b147517e9.tar.xz linux-191e42063a7241e5c3a1d1f36896a20b147517e9.zip | |
powerpc/mm: refactor ioremap_range() and use ioremap_page_range()
book3s64's ioremap_range() is almost same as fallback ioremap_range(),
except that it calls radix__ioremap_range() when radix is enabled.
radix__ioremap_range() is also very similar to the other ones, expect
that it calls ioremap_page_range when slab is available.
PPC32 __ioremap_caller() have a loop doing the same thing as
ioremap_range() so use it on PPC32 as well.
Lets keep only one version of ioremap_range() which calls
ioremap_page_range() on all platforms when slab is available.
At the same time, drop the nid parameter which is not used.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/4b1dca7096b01823b101be7338983578641547f1.1566309263.git.christophe.leroy@c-s.fr
Diffstat (limited to 'arch/powerpc/mm/book3s64')
| -rw-r--r-- | arch/powerpc/mm/book3s64/pgtable.c | 21 | ||||
| -rw-r--r-- | arch/powerpc/mm/book3s64/radix_pgtable.c | 20 |
2 files changed, 0 insertions, 41 deletions
diff --git a/arch/powerpc/mm/book3s64/pgtable.c b/arch/powerpc/mm/book3s64/pgtable.c index 7d0e0d0d22c4..4c8bed856533 100644 --- a/arch/powerpc/mm/book3s64/pgtable.c +++ b/arch/powerpc/mm/book3s64/pgtable.c @@ -446,24 +446,3 @@ int pmd_move_must_withdraw(struct spinlock *new_pmd_ptl, return true; } - -int ioremap_range(unsigned long ea, phys_addr_t pa, unsigned long size, pgprot_t prot, int nid) -{ - unsigned long i; - - if (radix_enabled()) - return radix__ioremap_range(ea, pa, size, prot, nid); - - for (i = 0; i < size; i += PAGE_SIZE) { - int err = map_kernel_page(ea + i, pa + i, prot); - if (err) { - if (slab_is_available()) - unmap_kernel_range(ea, size); - else - WARN_ON_ONCE(1); /* Should clean up */ - return err; - } - } - - return 0; -} diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c index 2204d8eeb784..5bab67fe96e0 100644 --- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -1218,26 +1218,6 @@ int pmd_free_pte_page(pmd_t *pmd, unsigned long addr) return 1; } -int radix__ioremap_range(unsigned long ea, phys_addr_t pa, unsigned long size, - pgprot_t prot, int nid) -{ - if (likely(slab_is_available())) { - int err = ioremap_page_range(ea, ea + size, pa, prot); - if (err) - unmap_kernel_range(ea, size); - return err; - } else { - unsigned long i; - - for (i = 0; i < size; i += PAGE_SIZE) { - int err = map_kernel_page(ea + i, pa + i, prot); - if (WARN_ON_ONCE(err)) /* Should clean up */ - return err; - } - return 0; - } -} - int __init arch_ioremap_p4d_supported(void) { return 0; |