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82a1b8ed56
linux/arch/powerpc/mm
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Nicholas Piggin 82a1b8ed56 powerpc/64s/hash: Add stress_slb kernel boot option to increase SLB faults 
This option increases the number of SLB misses by limiting the number
of kernel SLB entries, and increased flushing of cached lookaside
information. This helps stress test difficult to hit paths in the
kernel.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Relocate the code into arch/powerpc/mm, s/torture/stress/]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200511125825.3081305-1-mpe@ellerman.id.au
2020-05-20 23:39:58 +10:00
..
book3s32 powerpc/32s: reorder Linux PTE bits to better match Hash PTE bits. 2020-03-25 12:09:27 +11:00
book3s64 powerpc/64s/hash: Add stress_slb kernel boot option to increase SLB faults 2020-05-20 23:39:58 +10:00
kasan powerpc updates for 5.7 2020-04-05 11:12:59 -07:00
nohash powerpc: Use a macro for creating instructions from u32s 2020-05-19 00:10:36 +10:00
ptdump powerpc/mm: ptdump: no need to check return value of debugfs_create functions 2020-03-04 22:44:25 +11:00
copro_fault.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153 2019-05-30 11:26:32 -07:00
dma-noncoherent.c dma-mapping: drop the dev argument to arch_sync_dma_for_* 2019-11-20 20:31:38 +01:00
drmem.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fault.c powerpc: Add a probe_user_read_inst() function 2020-05-19 00:10:37 +10:00
highmem.c powerpc/highmem: Change BUG_ON() to WARN_ON() 2019-04-20 22:02:11 +10:00
hugetlbpage.c powerpc/mm: Replace zero-length array with flexible-array 2020-05-15 11:58:54 +10:00
init_32.c powerpc: move memstart_addr and kernstart_addr to init-common.c 2019-11-13 19:27:28 +11:00
init_64.c powerpc: Replace _ALIGN_DOWN() by ALIGN_DOWN() 2020-05-11 23:15:15 +10:00
init-common.c powerpc: introduce kernstart_virt_addr to store the kernel base 2019-11-13 19:27:32 +11:00
ioremap_32.c powerpc/ioremap: warn on early use of ioremap() 2019-11-19 19:38:38 +11:00
ioremap_64.c powerpc/ioremap: warn on early use of ioremap() 2019-11-19 19:38:38 +11:00
ioremap.c mm/memremap_pages: Introduce memremap_compat_align() 2020-02-20 16:58:55 -08:00
Makefile powerpc/mm: Move ioremap functions out of pgtable_32/64.c 2019-08-27 13:03:35 +10:00
mem.c mm/memory_hotplug: add pgprot_t to mhp_params 2020-04-10 15:36:21 -07:00
mmap.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
mmu_context.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mmu_decl.h powerpc/ptdump: don't entirely rebuild kernel when selecting CONFIG_PPC_DEBUG_WX 2020-01-23 21:31:11 +11:00
numa.c powerpc/numa: Remove late request for home node associativity 2020-03-04 22:44:31 +11:00
pgtable_32.c powerpc/32: drop get_pteptr() 2020-02-26 10:34:41 +11:00
pgtable_64.c powerpc/mm: Move ioremap functions out of pgtable_32/64.c 2019-08-27 13:03:35 +10:00
pgtable-frag.c mm: treewide: clarify pgtable_page_{ctor,dtor}() naming 2019-09-26 10:10:44 -07:00
pgtable.c powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
slice.c powerpc: Replace _ALIGN_UP() by ALIGN() 2020-05-11 23:15:15 +10:00