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3c9ac2bcc3
linux/arch/powerpc/mm
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Michael Ellerman 3c9ac2bcc3 powerpc/mm/radix: Drop support for CPUs without lockless tlbie 
Currently the radix TLB code includes support for CPUs that do *not*
have MMU_FTR_LOCKLESS_TLBIE. On those CPUs we are required to take a
global spinlock before issuing a tlbie.

Radix can only be built for 64-bit Book3s CPUs, and of those, only
POWER4, 970, Cell and PA6T do not have MMU_FTR_LOCKLESS_TLBIE. Although
it's possible to build a kernel with Radix support that can also boot on
those CPUs, we happen to know that in reality none of those CPUs support
the Radix MMU, so the code can never actually run on those CPUs.

So remove the native_tlbie_lock in the Radix TLB code.

Note that there is another lock of the same name in the hash code, which
is unaffected by this patch.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-05-03 20:45:45 +10:00
..
8xx_mmu.c powerpc/8xx: add CONFIG_PIN_TLB_IMMR 2016-07-09 02:02:48 -05:00
40x_mmu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
44x_mmu.c
copro_fault.c powerpc/mm: Update PROTFAULT handling in the page fault path 2017-02-15 20:02:39 +11:00
dma-noncoherent.c powerpc: Simplify test in __dma_sync() 2016-03-11 17:20:12 -06:00
dump_hashpagetable.c powerpc/mm: Fix hash table dump when memory is not contiguous 2017-04-12 23:03:32 +10:00
dump_linuxpagetables.c powerpc/mm: Rename table dump file name 2017-04-27 22:20:28 +10:00
fault.c powerpc: Avoid taking a data miss on every userspace instruction miss 2017-04-03 23:33:05 +10:00
fsl_booke_mmu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
hash64_4k.c powerpc/mm: Fix lazy icache flush on pre-POWER5 2016-11-29 23:59:40 +11:00
hash64_64k.c powerpc/mm: Fix lazy icache flush on pre-POWER5 2016-11-29 23:59:40 +11:00
hash_low_32.S powerpc/32: Remove Mac-on-Linux/rtlinux hooks 2017-03-21 22:09:26 +11:00
hash_native_64.c Merge branch 'topic/ppc-kvm' into next 2016-11-24 22:14:52 +11:00
hash_utils_64.c powerpc: Create asm/debugfs.h and move powerpc_debugfs_root there 2017-04-11 07:46:03 +10:00
highmem.c
hugepage-hash64.c powerpc/mm: Move hash table ops to a separate structure 2016-07-21 18:59:09 +10:00
hugetlbpage-book3e.c powerpc/mm/nohash: MM_SLICE is only used by book3s 64 2017-03-31 23:09:47 +11:00
hugetlbpage-hash64.c powerpc/mm: Remove the debug hugepd_ok check 2017-01-23 19:19:28 +11:00
hugetlbpage-radix.c powerpc/mm/radix: Use mm->task_size for boundary checking instead of addr_limit 2017-04-19 20:00:18 +10:00
hugetlbpage.c powerpc/mm/hugetlb: Filter out hugepage size not supported by page table layout 2017-03-31 23:09:50 +11:00
icswx_pid.c
icswx.c
icswx.h
init_32.c powerpc/32: Add missing \n and switch to pr_warn() 2016-09-13 17:37:11 +10:00
init_64.c powerpc/mm: Remove checks that TASK_SIZE_USER64 is too small 2017-03-31 23:09:55 +11:00
init-common.c Merge branch 'topic/ppc-kvm' into next 2017-02-14 17:18:29 +11:00
Makefile Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next 2016-12-16 15:05:38 +11:00
mem.c powerpc/pseries: Automatically resize HPT for memory hot add/remove 2017-02-10 13:28:02 +11:00
mmap.c powerpc/mm: Fix possible out-of-bounds shift in arch_mmap_rnd() 2017-04-26 15:35:01 +10:00
mmu_context_book3s64.c powerpc/powernv: Introduce address translation services for Nvlink2 2017-04-04 13:27:26 +10:00
mmu_context_hash32.c
mmu_context_iommu.c Merge branch 'topic/ppc-kvm' into next 2017-04-28 20:19:37 +10:00
mmu_context_nohash.c powerpc/mm/nohash: MM_SLICE is only used by book3s 64 2017-03-31 23:09:47 +11:00
mmu_decl.h powerpc/8xx: Map IMMR area with 512k page at a fixed address 2016-07-09 02:02:48 -05:00
numa.c powerpc/mm: Remove reduntant initmem information from log 2017-04-11 07:46:05 +10:00
pgtable_32.c powerpc: port 64 bits pgtable_cache to 32 bits 2016-12-09 22:48:01 -06:00
pgtable_64.c Merge branch 'topic/ppc-kvm' into next 2017-02-14 17:18:29 +11:00
pgtable-book3e.c powerpc/mm: Make page table size a variable 2016-05-01 18:32:48 +10:00
pgtable-book3s64.c sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h> 2017-03-02 08:42:37 +01:00
pgtable-hash64.c sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h> 2017-03-02 08:42:37 +01:00
pgtable-radix.c powerpc fixes for 4.11 #3 2017-03-07 10:46:10 -08:00
pgtable.c powerpc/mm: Fix typo in set_pte_at() 2017-02-17 22:16:25 +11:00
ppc_mmu_32.c powerpc32: refactor x_mapped_by_bats() and x_mapped_by_tlbcam() together 2016-03-11 17:18:02 -06:00
slb_low.S powerpc/mm/hash: Store addr_limit in PACA 2017-04-01 21:12:27 +11:00
slb.c powerpc/mm/hash: Don't open code VMALLOC_INDEX 2017-04-13 23:34:31 +10:00
slice.c powerpc/mmap: Any hint > 128TB searches the full VA space 2017-04-19 20:00:19 +10:00
subpage-prot.c powerpc/mm/radix: Use mm->task_size for boundary checking instead of addr_limit 2017-04-19 20:00:18 +10:00
tlb_hash32.c powerpc/mm: remove flush_tlb_page_nohash 2016-08-01 11:15:13 +10:00
tlb_hash64.c powerpc/mm: Hash abstraction for tlbflush routines 2016-05-01 18:33:08 +10:00
tlb_low_64e.S powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
tlb_nohash_low.S powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
tlb_nohash.c powerpc/nohash: Fix use of mmu_has_feature() in setup_initial_memory_limit() 2017-04-11 07:46:04 +10:00
tlb-radix.c powerpc/mm/radix: Drop support for CPUs without lockless tlbie 2017-05-03 20:45:45 +10:00
vphn.c
vphn.h