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linux-brain/arch/powerpc/mm
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Laurentiu Tudor 87279a3576 powerpc/fsl_booke: Avoid creating duplicate tlb1 entry 
[ Upstream commit aa4113340ae6c2811e046f08c2bc21011d20a072 ]

In the current implementation, the call to loadcam_multi() is wrapped
between switch_to_as1() and restore_to_as0() calls so, when it tries
to create its own temporary AS=1 TLB1 entry, it ends up duplicating
the existing one created by switch_to_as1(). Add a check to skip
creating the temporary entry if already running in AS=1.

Fixes: d9e1831a42 ("powerpc/85xx: Load all early TLB entries at once")
Cc: stable@vger.kernel.org # v4.4+
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Scott Wood <oss@buserror.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200123111914.2565-1-laurentiu.tudor@nxp.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-17 10:48:55 +02:00
..
8xx_mmu.c Revert "powerpc/8xx: Use L1 entry APG to handle _PAGE_ACCESSED for CONFIG_SWAP" 2018-11-21 09:19:18 +01:00
40x_mmu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
44x_mmu.c powerpc/44x: Mark mmu_init_secondary() as __init 2018-07-30 22:48:22 +10:00
copro_fault.c mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
dma-noncoherent.c powerpc/mm: Rename map_page() to map_kernel_page() on 32-bit 2017-06-05 19:59:03 +10:00
drmem.c powerpc/mm/drmem: Fix unexpected flag value in ibm,dynamic-memory-v2 2018-02-23 16:45:51 +11:00
dump_hashpagetable.c powerpc/mm: Check secondary hash page table 2020-01-27 14:50:30 +01:00
dump_linuxpagetables.c powerpc/mm: Fix linux page tables build with some configs 2019-01-13 09:50:55 +01:00
fault.c powerpc/mm: Make NULL pointer deferences explicit on bad page faults. 2019-12-05 09:20:42 +01:00
fsl_booke_mmu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
hash_low_32.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
hash_native_64.c powerpc/mm: Fixup tlbie vs mtpidr/mtlpidr ordering issue on POWER9 2019-11-10 11:27:55 +01:00
hash_utils_64.c powerpc/book3s64/hash: Add cond_resched to avoid soft lockup warning 2020-01-04 19:12:46 +01:00
hash64_4k.c powerpc/mm/hash: Remove the superfluous bitwise operation when find hpte group 2018-07-24 22:03:17 +10:00
hash64_64k.c powerpc/mm/hash: Remove the superfluous bitwise operation when find hpte group 2018-07-24 22:03:17 +10:00
highmem.c powerpc/mm: remove warning about ‘type’ being set 2018-08-10 22:12:38 +10:00
hugepage-hash64.c powerpc/mm/hash: Remove the superfluous bitwise operation when find hpte group 2018-07-24 22:03:17 +10:00
hugetlbpage-book3e.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hugetlbpage-hash64.c powerpc/mm/hash64: Store the slot information at the right offset for hugetlb 2018-02-13 22:37:48 +11:00
hugetlbpage-radix.c powerpc/hugetlb: Handle mmap_min_addr correctly in get_unmapped_area callback 2019-04-05 22:33:02 +02:00
hugetlbpage.c powerpc/mm: Handle page table allocation failures 2019-07-31 07:27:05 +02:00
init_32.c powerpc/mm/32: Remove the reserved memory hack 2018-04-01 00:47:44 +11:00
init_64.c powerpc/mm: Fallback to RAM if the altmap is unusable 2019-01-13 09:50:57 +01:00
init-common.c powerpc/mm: Fix crashes with 16G huge pages 2018-02-13 22:37:47 +11:00
Makefile powerpc/Makefiles: Convert ifeq to ifdef where possible 2018-08-08 00:32:36 +10:00
mem.c mm/memory_hotplug: shrink zones when offlining memory 2020-01-29 16:43:27 +01:00
mmap.c exec: pass stack rlimit into mm layout functions 2018-04-11 10:28:37 -07:00
mmu_context_book3s64.c powerpc/mm/64s/hash: Reallocate context ids on fork 2019-06-25 11:36:02 +08:00
mmu_context_hash32.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
mmu_context_iommu.c KVM: PPC: Avoid marking DMA-mapped pages dirty in real mode 2018-09-12 08:49:54 +10:00
mmu_context_nohash.c powerpc/mm: Remove stale_map[] handling on non SMP processors 2018-06-04 00:39:16 +10:00
mmu_context.c powerpc/64s/radix: optimise pte_update 2018-06-03 20:40:36 +10:00
mmu_decl.h powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
numa.c powerpc/numa: improve control of topology updates 2019-05-31 06:46:18 -07:00
pgtable_32.c powerpc/mm/32: Remove the reserved memory hack 2018-04-01 00:47:44 +11:00
pgtable_64.c powerpc/mm: Use page fragments for allocation page table at PMD level 2018-05-15 22:29:12 +10:00
pgtable-book3e.c powerpc/mm: Make page table size a variable 2016-05-01 18:32:48 +10:00
pgtable-book3s64.c powerpc/radix: Fix kernel crash with mremap() 2019-02-15 08:10:12 +01:00
pgtable-hash64.c powerpc/mm: Use pmd_lockptr instead of opencoding it 2018-05-15 22:29:09 +10:00
pgtable-radix.c powerpc/64s/radix: Fix memory hot-unplug page table split 2020-01-27 14:51:05 +01:00
pgtable.c powerpc/mm/hugetlb: Update hugetlb related locks 2018-06-03 20:40:37 +10:00
pkeys.c powerpc/pkeys: Fix handling of pkey state across fork() 2019-09-16 08:22:01 +02:00
ppc_mmu_32.c powerpc/book3s/32: fix number of bats in p/v_block_mapped() 2019-12-05 09:20:38 +01:00
slb_low.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
slb.c powerpc/64s/hash: Fix stab_rr off by one initialization 2019-11-20 18:46:58 +01:00
slice.c powerpc/mm/hash: Handle mmap_min_addr correctly in get_unmapped_area topdown search 2019-05-08 07:21:54 +02:00
subpage-prot.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
tlb_hash32.c powerpc/sparse: Fix plain integer as NULL pointer warning 2018-05-25 12:04:38 +10:00
tlb_hash64.c powerpc/mm: Add support for handling > 512TB address in SLB miss 2018-03-31 00:10:38 +11:00
tlb_low_64e.S powerpc/fsl: Flush the branch predictor at each kernel entry (64bit) 2019-04-03 06:26:20 +02:00
tlb_nohash_low.S powerpc/fsl_booke: Avoid creating duplicate tlb1 entry 2020-04-17 10:48:55 +02:00
tlb_nohash.c powerpc/nohash: fix undefined behaviour when testing page size support 2018-11-21 09:19:09 +01:00
tlb-radix.c powerpc/64s/radix: Fix radix__flush_tlb_collapsed_pmd double flushing pmd 2019-12-01 09:16:46 +01:00
vphn.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vphn.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00