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/linux/include/linux/
H A Dhuge_mm.h75 * Mask of all large folio orders supported for anonymous THP; all orders up to
82 * Mask of all large folio orders supported for file THP. Folios in a DAX
92 * Mask of all large folio orders supported for THP.
198 static inline int highest_order(unsigned long orders) in highest_order() argument
200 return fls_long(orders) - 1; in highest_order()
203 static inline int next_order(unsigned long *orders, int prev) in next_order() argument
205 *orders &= ~BIT(prev); in next_order()
206 return highest_order(*orders); in next_order()
241 * Filter the bitfield of input orders to the ones suitable for use in the vma.
243 * All orders that pass the checks are returned as a bitfield.
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H A Dihex.h4 * firmware loaded in strange orders rather than a single big blob, but
/linux/tools/testing/selftests/mm/
H A Dthp_settings.c203 unsigned long orders = thp_supported_orders(); in thp_read_settings() local
230 if (!((1 << i) & orders)) { in thp_read_settings()
255 unsigned long orders = thp_supported_orders(); in thp_write_settings() local
281 if (!((1 << i) & orders)) in thp_write_settings()
352 unsigned long orders = 0; in __thp_supported_orders() local
369 orders |= 1UL << i; in __thp_supported_orders()
372 return orders; in __thp_supported_orders()
H A Dsplit_huge_page_test.c125 * folio orders
131 * @orders: output folio order array
135 * all folios within the range and record their orders. All order-0 pages will
138 * NOTE: the function is used to check folio orders after a split is performed,
145 int pagemap_fd, int kpageflags_fd, int orders[], int nr_orders) in gather_after_split_folio_orders() argument
153 if (!orders) in gather_after_split_folio_orders()
175 orders[0]++; in gather_after_split_folio_orders()
210 orders[cur_order]++; in gather_after_split_folio_orders()
225 orders[cur_order]++; in gather_after_split_folio_orders()
230 int pagemap_fd, int kpageflags_fd, int orders[], in in check_after_split_folio_orders() argument
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H A Duffd-wp-mremap.c25 unsigned long orders; in detect_thp_sizes() local
33 orders = thp_supported_orders(); in detect_thp_sizes()
35 for (i = 0; orders && count < max; i++) { in detect_thp_sizes()
36 if (!(orders & (1UL << i))) in detect_thp_sizes()
38 orders &= ~(1UL << i); in detect_thp_sizes()
/linux/drivers/dma-buf/heaps/
H A Dsystem_heap.c47 * The selection of the orders used for allocation (1MB, 64K, 4K) is designed
52 static const unsigned int orders[] = {8, 4, 0}; variable
53 #define NUM_ORDERS ARRAY_SIZE(orders)
326 if (size < (PAGE_SIZE << orders[i])) in alloc_largest_available()
328 if (max_order < orders[i]) in alloc_largest_available()
333 page = alloc_pages(flags, orders[i]); in alloc_largest_available()
349 unsigned int max_order = orders[0]; in system_heap_allocate()
/linux/tools/memory-model/Documentation/
H A Dglossary.txt29 a special operation that includes a load and which orders that
117 Fully Ordered: An operation such as smp_mb() that orders all of
120 that orders all of its CPU's prior accesses, itself, and
167 a special operation that includes a store and which orders that
H A Dcheatsheet.txt34 SELF: Orders self, as opposed to accesses before and/or after
35 SV: Orders later accesses to the same variable
H A Drecipes.txt236 The smp_store_release() macro orders any prior accesses against the
237 store, while the smp_load_acquire macro orders the load against any
277 smp_store_release(), but the rcu_dereference() macro orders the load only
314 The smp_wmb() macro orders prior stores against later stores, and the
315 smp_rmb() macro orders prior loads against later loads. Therefore, if
/linux/arch/s390/kvm/
H A Dsigp.c266 /* handle unknown orders in user space */ in __prepare_sigp_unknown()
280 * SIGP RESTART, SIGP STOP, and SIGP STOP AND STORE STATUS orders in handle_sigp_dst()
283 * interrupt, we need to return any new non-reset orders "busy". in handle_sigp_dst()
298 * their orders, while the guest cannot observe a in handle_sigp_dst()
299 * difference when issuing other orders from two in handle_sigp_dst()
/linux/arch/powerpc/mm/
H A Dmmu_context.c56 * This full barrier orders the store to the cpumask above vs in switch_mm_irqs_off()
69 * radix which orders earlier stores to clear the PTEs before in switch_mm_irqs_off()
/linux/arch/arm64/boot/dts/renesas/
H A Dwhite-hawk-csi-dsi.dtsi24 line-orders = <MEDIA_BUS_CSI2_CPHY_LINE_ORDER_ABC
47 line-orders = <MEDIA_BUS_CSI2_CPHY_LINE_ORDER_ABC
/linux/Documentation/
H A Datomic_t.txt194 smp_mb__before_atomic() orders all earlier accesses against the RMW op
195 itself and all accesses following it, and smp_mb__after_atomic() orders all
226 a RELEASE because it orders preceding instructions against both the read
/linux/drivers/media/v4l2-core/
H A Dv4l2-fwnode.c200 rval = fwnode_property_count_u32(fwnode, "line-orders"); in v4l2_fwnode_endpoint_parse_csi2_bus()
203 pr_warn("invalid number of line-orders entries (need %u, got %u)\n", in v4l2_fwnode_endpoint_parse_csi2_bus()
267 "line-orders", array, in v4l2_fwnode_endpoint_parse_csi2_bus()
271 static const char * const orders[] = { in v4l2_fwnode_endpoint_parse_csi2_bus() local
275 if (array[i] >= ARRAY_SIZE(orders)) { in v4l2_fwnode_endpoint_parse_csi2_bus()
285 orders[array[i]]); in v4l2_fwnode_endpoint_parse_csi2_bus()
292 pr_debug("no line orders defined, assuming ABC\n"); in v4l2_fwnode_endpoint_parse_csi2_bus()
/linux/Documentation/userspace-api/media/v4l/
H A Dfield-order.rst81 If multiple field orders are possible the
82 driver must choose one of the possible field orders during
H A Dpixfmt-bayer.rst16 orders. See also `the Wikipedia article on Bayer filter
/linux/mm/
H A Dhuge_memory.c106 unsigned long orders) in __thp_vma_allowable_orders() argument
113 /* Check the intersection of requested and supported orders. */ in __thp_vma_allowable_orders()
121 orders &= supported_orders; in __thp_vma_allowable_orders()
122 if (!orders) in __thp_vma_allowable_orders()
133 return in_pf ? orders : 0; in __thp_vma_allowable_orders()
145 * filtering out the unsuitable orders. in __thp_vma_allowable_orders()
151 int order = highest_order(orders); in __thp_vma_allowable_orders()
154 while (orders) { in __thp_vma_allowable_orders()
158 order = next_order(&orders, order); in __thp_vma_allowable_orders()
161 if (!orders) in __thp_vma_allowable_orders()
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H A Dmemory.c4580 unsigned long orders) in thp_swap_suitable_orders() argument
4584 order = highest_order(orders); in thp_swap_suitable_orders()
4591 while (orders) { in thp_swap_suitable_orders()
4595 order = next_order(&orders, order); in thp_swap_suitable_orders()
4598 return orders; in thp_swap_suitable_orders()
4604 unsigned long orders; in alloc_swap_folio() local
4630 * Get a list of all the (large) orders below PMD_ORDER that are enabled in alloc_swap_folio()
4633 orders = thp_vma_allowable_orders(vma, vma->vm_flags, TVA_PAGEFAULT, in alloc_swap_folio()
4635 orders = thp_vma_suitable_orders(vma, vmf->address, orders); in alloc_swap_folio()
4636 orders = thp_swap_suitable_orders(swp_offset(entry), in alloc_swap_folio()
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/linux/drivers/gpu/drm/ttm/
H A Dttm_pool.c154 * Do not add latency to the allocation path for allocations orders in ttm_pool_alloc_page()
352 return &pool->caching[caching].orders[order]; in ttm_pool_select_type()
358 return &pool->caching[caching].orders[order]; in ttm_pool_select_type()
366 return &pool->caching[caching].orders[order]; in ttm_pool_select_type()
1093 if (pt != &pool->caching[i].orders[j]) in ttm_pool_init()
1131 if (pt != &pool->caching[i].orders[j]) in ttm_pool_fini()
1277 ttm_pool_debugfs_orders(pool->caching[i].orders, m); in ttm_pool_debugfs()
/linux/kernel/liveupdate/
H A Dkexec_handover.c100 struct xarray orders; member
117 .orders = XARRAY_INIT(kho_out.track.orders, 0),
153 physxa = xa_load(&track->orders, order); in __kho_unpreserve_order()
186 physxa = xa_load(&track->orders, order); in __kho_preserve_order()
195 physxa = xa_cmpxchg(&track->orders, order, NULL, new_physxa, in __kho_preserve_order()
419 xa_for_each(&kho_out->track.orders, order, physxa) { in kho_mem_serialize()
/linux/Documentation/admin-guide/mm/
H A Dtranshuge.rst635 lower orders or small pages.
639 instead falls back to using huge pages with lower orders or
652 and instead falls back to using huge pages with lower orders or
657 falls back to using huge pages with lower orders or small pages
684 smaller orders. This can happen for a variety of reasons but a
/linux/samples/bpf/
H A Dtc_l2_redirect_user.c59 /* bpf_tunnel_key.remote_ipv4 expects host byte orders */ in main()
/linux/drivers/s390/block/
H A Ddasd_eckd.h56 /* Define Subsystem Function / Orders */
60 * Perform Subsystem Function / Orders
67 * Perform Subsystem Function / Sub-Orders
/linux/arch/s390/include/uapi/asm/
H A Draw3270.h13 /* Buffer Control Orders */
/linux/include/rv/
H A Dda_monitor.h108 * able to handle various orders.
148 * able to handle various orders.

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