Frederic Barrat 03b8abedf4 cxl: Enable global TLBIs for cxl contexts ... The PSL and nMMU need to see all TLB invalidations for the memory contexts used on the adapter. For the hash memory model, it is done by making all TLBIs global as soon as the cxl driver is in use. For radix, we need something similar, but we can refine and only convert to global the invalidations for contexts actually used by the device. The new mm_context_add_copro() API increments the 'active_cpus' count for the contexts attached to the cxl adapter. As soon as there's more than 1 active cpu, the TLBIs for the context become global. Active cpu count must be decremented when detaching to restore locality if possible and to avoid overflowing the counter. The hash memory model support is somewhat limited, as we can't decrement the active cpus count when mm_context_remove_copro() is called, because we can't flush the TLB for a mm on hash. So TLBIs remain global on hash. Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Fixes: f24be42aab ("cxl: Add psl9 specific code") Tested-by: Alistair Popple <alistair@popple.id.au> [mpe: Fold in updated comment on the barrier from Fred] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2017-09-28 17:09:16 +10:00
..
8xx_mmu.c	powerpc/8xx: mark init functions with __init	2017-08-15 22:55:54 +10:00
40x_mmu.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
44x_mmu.c	powerpc: Delete __cpuinit usage from all users	2013-07-01 11:10:36 +10:00
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/mm: Rename map_page() to map_kernel_page() on 32-bit	2017-06-05 19:59:03 +10:00
dump_hashpagetable.c	powerpc/mm: Use seq_putc() in two functions	2017-09-01 16:42:52 +10:00
dump_linuxpagetables.c	powerpc/mm: Use seq_putc() in two functions	2017-09-01 16:42:52 +10:00
fault.c	powerpc/8xx: Use symbolic names for DSISR bits in DSI	2017-08-10 23:32:20 +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: fix location of two EXPORT_SYMBOL	2017-09-01 16:42:45 +10:00
hash_native_64.c	powerpc/mm: Wire up hpte_removebolted for powernv	2017-07-02 20:40:28 +10:00
hash_utils_64.c	powerpc/mm: Use mm_is_thread_local() instread of open-coding	2017-08-23 22:27:45 +10:00
highmem.c	sched/preempt, mm/kmap: Explicitly disable/enable preemption in kmap_atomic_*	2015-05-19 08:39:14 +02:00
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	mm: larger stack guard gap, between vmas	2017-06-19 21:50:20 +08:00
hugetlbpage.c	powerpc/mm: Use mm_is_thread_local() instread of open-coding	2017-08-23 22:27:45 +10:00
init_32.c	powerpc/mm/hugetlb: Add support for reserving gigantic huge pages via kernel command line	2017-08-16 14:56:12 +10:00
init_64.c	powerpc/mm: Fix section mismatch warning in early_check_vec5()	2017-08-10 23:40:51 +10:00
init-common.c	Merge branch 'topic/ppc-kvm' into next	2017-02-14 17:18:29 +11:00
Makefile	powerpc/mm: Make switch_mm_irqs_off() out of line	2017-08-23 22:48:51 +10:00
mem.c	powerpc/8xx: Getting rid of remaining use of CONFIG_8xx	2017-08-10 23:32:12 +10:00
mmap.c	powerpc,mmap: properly account for stack randomization in mmap_base	2017-07-12 16:26:03 -07:00
mmu_context_book3s64.c	powerpc/mm: Optimize detection of thread local mm's	2017-08-23 22:28:38 +10:00
mmu_context_hash32.c	powerpc: Remove power3 from comments	2014-07-28 14:10:26 +10:00
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_context.c	cxl: Enable global TLBIs for cxl contexts	2017-09-28 17:09:16 +10:00
mmu_decl.h	powerpc/8xx: Getting rid of remaining use of CONFIG_8xx	2017-08-10 23:32:12 +10:00
numa.c	powerpc: Only obtain cpu_hotplug_lock if called by rtasd	2017-06-23 09:32:11 +02:00
pgtable_32.c	powerpc/mm: Simplify __set_fixmap()	2017-08-15 22:55:58 +10:00
pgtable_64.c	powerpc/mm/book3s64: Make KERN_IO_START a variable	2017-08-08 19:37:04 +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/mm/cxl: Add the fault handling cpu to mm cpumask	2017-08-17 23:31:52 +10:00
pgtable-hash64.c	powerpc/mm: Use mm_is_thread_local() instread of open-coding	2017-08-23 22:27:45 +10:00
pgtable-radix.c	powerpc/mm/radix: Prettify mapped memory range print out	2017-08-31 14:26:42 +10:00
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/hash64: Make vmalloc 56T on hash	2017-08-08 19:37:05 +10:00
slb.c	powerpc/64s: Rename slb_allocate_realmode() to slb_allocate()	2017-06-21 16:18:33 +10:00
slice.c	mm: larger stack guard gap, between vmas	2017-06-19 21:50:20 +08:00
subpage-prot.c	powerpc/mm/hash: Free the subpage_prot_table correctly	2017-07-27 13:05:50 +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: Use mm_is_thread_local() instread of open-coding	2017-08-23 22:27:45 +10:00
tlb_low_64e.S	powerpc: Fix misspellings in comments.	2016-03-01 19:27:20 +11:00
tlb_nohash_low.S	powerpc/8xx: Getting rid of remaining use of CONFIG_8xx	2017-08-10 23:32:12 +10:00
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: Export flush_all_mm()	2017-09-28 16:28:22 +10:00
vphn.c	powerpc/vphn: parsing code rewrite	2015-03-18 10:48:59 +11:00
vphn.h	powerpc/vphn: parsing code rewrite	2015-03-18 10:48:59 +11:00