| /linux/Documentation/admin-guide/hw-vuln/ |
| H A D | l1tf.rst | 148 'L1D vulnerable' L1D flushing is disabled
176 Flushing the L1D evicts not only the data which should not be accessed
178 data. Flushing the L1D has a performance impact as the processor has to
191 The conditional mode avoids L1D flushing after VMEXITs which execute
373 the hypervisors, i.e. unconditional L1D flushing
386 mitigation, i.e. conditional L1D flushing
395 i.e. conditional L1D flushing.
413 The default is 'flush'. For details about L1D flushing see :ref:`l1d_flush`.
421 The KVM hypervisor mitigation mechanism, flushing the L1D cache when
466 To avoid the overhead of the default L1D flushing on VMENTER the
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| H A D | l1d_flush.rst | 1 L1D Flushing
38 If the underlying CPU supports L1D flushing in hardware, the hardware
66 **NOTE** : The opt-in of a task for L1D flushing works only when the task's
68 requested L1D flushing is scheduled on a SMT-enabled core the kernel sends
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| /linux/Documentation/core-api/ |
| H A D | cachetlb.rst | 2 Cache and TLB Flushing Under Linux
7 This document describes the cache/tlb flushing interfaces called
17 thinking SMP cache/tlb flushing must be so inefficient, this is in
23 First, the TLB flushing interfaces, since they are the simplest. The
56 Here we are flushing a specific range of (user) virtual
108 Next, we have the cache flushing interfaces. In general, when Linux
130 The cache flushing routines below need only deal with cache flushing
165 Here we are flushing a specific range of (user) virtual
215 Here in these two interfaces we are flushing a specific range
343 Any necessary cache flushing or other coherency operations
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| /linux/fs/btrfs/ |
| H A D | space-info.c | 65 * MAKING RESERVATIONS, FLUSHING NORMALLY (non-priority)
94 * MAKING RESERVATIONS, FLUSHING HIGH PRIORITY
101 * THE FLUSHING STATES
426 * If we aren't flushing all things, let us overcommit up to in calc_available_free_space()
654 * flushing loops and hope for the best. Delalloc will expand in shrink_delalloc()
686 * marked clean. We don't use filemap_fwrite for flushing in shrink_delalloc()
732 * flushing so we can stop flushing if we decide we don't need in shrink_delalloc()
871 * We may be flushing because suddenly we have less space than we had in btrfs_calc_reclaim_metadata_size()
874 * appropriate pressure on the flushing state machine. in btrfs_calc_reclaim_metadata_size()
907 * that devoted to other reservations then there's no sense in flushing, in need_preemptive_reclaim()
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| /linux/arch/riscv/mm/ |
| H A D | cacheflush.c | 181 * riscv_set_icache_flush_ctx() - Enable/disable icache flushing instructions in
183 * @ctx: Set the type of icache flushing instructions permitted/prohibited in
195 * @scope: Set scope of where icache flushing instructions are allowed to be
209 * permitted to emit icache flushing instructions. Whenever any thread in the
213 * may attempt to execute, the other thread must still emit an icache flushing
218 * thread calling this function is permitted to emit icache flushing
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| /linux/arch/parisc/include/asm/ |
| H A D | tlbflush.h | 5 /* TLB flushing routines.... */
33 * and not flushing the whole tlb.
41 /* Except for very small threads, flushing the whole TLB is in flush_tlb_mm()
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| /linux/Documentation/arch/x86/ |
| H A D | pti.rst | 94 allows us to skip flushing the entire TLB when switching page
117 h. INVPCID is a TLB-flushing instruction which allows flushing
121 flushing a kernel address, we need to flush all PCIDs, so a
122 single kernel address flush will require a TLB-flushing CR3
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| /linux/arch/openrisc/include/asm/ |
| H A D | cacheflush.h | 20 * Helper function for flushing or invalidating entire pages from data
28 * Data cache flushing always happen on the local cpu. Instruction cache
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| /linux/arch/arm/mm/ |
| H A D | mm.h | 15 * is reserved for VIPT aliasing flushing by generic code.
22 /* PFN alias flushing, for VIPT caches */
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| /linux/drivers/md/bcache/ |
| H A D | journal.h | 25 * moving gc we work around it by flushing the btree to disk before updating the
74 * If the journal fills up, we start flushing dirty btree nodes until we can
75 * allocate space for a journal write again - preferentially flushing btree
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| /linux/arch/powerpc/include/asm/nohash/ |
| H A D | tlbflush.h | 6 * TLB flushing:
19 * TLB flushing for software loaded TLB chips
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| /linux/arch/sh/mm/ |
| H A D | tlbflush_32.c | 2 * TLB flushing operations for SH with an MMU.
130 * This is the most destructive of the TLB flushing options, in __flush_tlb_global()
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| /linux/arch/powerpc/mm/book3s32/ |
| H A D | tlb.c | 3 * This file contains the routines for TLB flushing.
33 * TLB flushing:
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| /linux/mm/ |
| H A D | percpu-vm.c | 122 * unmapped. Flush cache. As each flushing trial can be very
180 * returned to vmalloc as vmalloc will handle TLB flushing lazily.
182 * As with pcpu_pre_unmap_flush(), TLB flushing also is done at once
252 * As with pcpu_pre_unmap_flush(), TLB flushing also is done at once
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| /linux/include/trace/events/ |
| H A D | jbd2.h | 261 __field( unsigned long, flushing )
275 __entry->flushing = stats->rs_flushing;
283 "locked %u flushing %u logging %u handle_count %u "
290 jiffies_to_msecs(__entry->flushing),
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| /linux/drivers/ssb/ |
| H A D | driver_gige.c | 212 /* Write flushing is controlled by the Flush Status Control register. in ssb_gige_probe()
214 * to disable the IRQ mask while flushing to avoid concurrency. in ssb_gige_probe()
215 * Note that automatic write flushing does _not_ work from in ssb_gige_probe()
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| /linux/drivers/gpu/drm/i915/gem/ |
| H A D | i915_gem_object_types.h | 144 * up over-flushing in some places.
436 * engine we only need to care about flushing any writes through the CPU
449 * flushing the surface just before doing the scanout. This does mean
507 * flushing might be needed at various points.
509 * Another part of @cache_dirty is managing flushing when first
516 * whether we actually need apply the big sledgehammer of flushing all
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| /linux/arch/sh/include/asm/ |
| H A D | cacheflush.h | 8 * Cache flushing:
12 * - flush_cache_dup mm(mm) handles cache flushing when forking
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| /linux/Documentation/block/ |
| H A D | writeback_cache_control.rst | 45 worry if the underlying devices need any explicit cache flushing and how
58 that it supports flushing caches by setting the
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| /linux/fs/ceph/ |
| H A D | caps.c | 1392 int flushing, u64 flush_tid, u64 oldest_flush_tid) in __prep_cap() argument
1426 arg->follows = flushing ? ci->i_head_snapc->seq : 0; in __prep_cap()
1439 if (flushing & CEPH_CAP_XATTR_EXCL) { in __prep_cap()
1457 arg->dirty = flushing; in __prep_cap()
1531 " flushing %s tid %llu, requeuing cap.\n", in __send_cap()
1869 * Remove cap_flush from the mdsc's or inode's flushing cap list.
1903 * Add dirty inode to the flushing list. Assigned a seq number so we
1916 int flushing; in __mark_caps_flushing() local
1923 flushing = ci->i_dirty_caps; in __mark_caps_flushing()
1924 doutc(cl, "flushing %s, flushing_caps %s -> %s\n", in __mark_caps_flushing()
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| /linux/arch/mips/include/asm/ |
| H A D | cacheflush.h | 16 /* Cache flushing:
20 * - flush_cache_dup mm(mm) handles cache flushing when forking
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| /linux/kernel/printk/ |
| H A D | nbcon.c | 1077 * pending records. The caller might want to continue flushing.
1407 * pending records. The caller might want to continue flushing.
1471 * If flushing up to @stop_seq was not successful, it only makes sense for the
1520 * This will stop flushing before @stop_seq if another context has ownership.
1521 * That context is then responsible for the flushing. Likewise, if new records
1522 * are added while this context was flushing and there is no other context
1534 * Atomic flushing does not use console driver synchronization (i.e. in nbcon_atomic_flush_pending_con()
1557 * If flushing was successful but more records are available, this in nbcon_atomic_flush_pending_con()
1603 * records added while flushing will not be flushed if there is another
1604 * context available to handle the flushing. This is to avoid one CPU
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| /linux/drivers/accessibility/speakup/ |
| H A D | speakup_soft.c | 240 if (!synth_buffer_empty() || speakup_info.flushing) in softsynthx_read()
264 if (speakup_info.flushing) { in softsynthx_read()
265 speakup_info.flushing = 0; in softsynthx_read()
361 (!synth_buffer_empty() || speakup_info.flushing)) in softsynth_poll()
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| /linux/fs/xfs/ |
| H A D | xfs_trans_ail.c | 471 int flushing = 0; in xfsaild_push() local
480 * needs flushing will hard stop the transaction subsystem when log in xfsaild_push()
534 * We do not want to stop flushing just because lots in xfsaild_push()
536 * re-try the flushing relatively soon if most of the in xfsaild_push()
542 flushing++; in xfsaild_push()
607 } else if (((stuck + flushing) * 100) / count > 90) { in xfsaild_push()
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| /linux/arch/m68k/mm/ |
| H A D | memory.c | 177 * flushing the icache is appropriate; flushing the dcache shouldn't in cache_push()
|