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| author | Jonathan Neuschäfer <j.neuschaefer@gmx.net> | 2018-03-28 02:25:44 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-31 15:47:44 +0200 |
| commit | 7e1405917c145edbb7d4cd520e890e44161dd7be (patch) | |
| tree | cef969c99729d5ddb4b5d54d3b6bbb9c1ad815cf | |
| parent | powerpc/wii: Don't rely on the reserved memory hack (diff) | |
| download | linux-7e1405917c145edbb7d4cd520e890e44161dd7be.tar.xz linux-7e1405917c145edbb7d4cd520e890e44161dd7be.zip | |
powerpc/mm/32: Remove the reserved memory hack
This hack, introduced in commit c5df7f775148 ("powerpc: allow ioremap
within reserved memory regions") is now unnecessary.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/mm/init_32.c | 5 | ||||
| -rw-r--r-- | arch/powerpc/mm/mmu_decl.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/mm/pgtable_32.c | 3 |
3 files changed, 1 insertions, 8 deletions
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c index a2bf6965d04f..3e59e5d64b01 100644 --- a/arch/powerpc/mm/init_32.c +++ b/arch/powerpc/mm/init_32.c @@ -88,11 +88,6 @@ void MMU_init(void); int __map_without_bats; int __map_without_ltlbs; -/* - * This tells the system to allow ioremapping memory marked as reserved. - */ -int __allow_ioremap_reserved; - /* max amount of low RAM to map in */ unsigned long __max_low_memory = MAX_LOW_MEM; diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h index 57fbc554c785..c4c0a09a7775 100644 --- a/arch/powerpc/mm/mmu_decl.h +++ b/arch/powerpc/mm/mmu_decl.h @@ -98,7 +98,6 @@ extern void setbat(int index, unsigned long virt, phys_addr_t phys, unsigned int size, pgprot_t prot); extern int __map_without_bats; -extern int __allow_ioremap_reserved; extern unsigned int rtas_data, rtas_size; struct hash_pte; diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index 6668ecc041ad..120a49bfb9c6 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c @@ -148,8 +148,7 @@ __ioremap_caller(phys_addr_t addr, unsigned long size, unsigned long flags, * mem_init() sets high_memory so only do the check after that. */ if (slab_is_available() && (p < virt_to_phys(high_memory)) && - page_is_ram(__phys_to_pfn(p)) && - !(__allow_ioremap_reserved && memblock_is_region_reserved(p, size))) { + page_is_ram(__phys_to_pfn(p))) { printk("__ioremap(): phys addr 0x%llx is RAM lr %ps\n", (unsigned long long)p, __builtin_return_address(0)); return NULL; |