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/linux/drivers/gpu/drm/tests/
H A Ddrm_buddy_test.c1 // SPDX-License-Identifier: MIT
31 struct drm_buddy mm; in drm_test_buddy_alloc_range_bias() local
37 mm_size = (SZ_8M-1) & ~(ps-1); /* Multiple roots */ in drm_test_buddy_alloc_range_bias()
41 KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, ps), in drm_test_buddy_alloc_range_bias()
55 for (i = 0; i < count; i++) { in drm_test_buddy_alloc_range_bias()
65 drm_buddy_alloc_blocks(&mm, bias_start, in drm_test_buddy_alloc_range_bias()
69 "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n", in drm_test_buddy_alloc_range_bias()
74 drm_buddy_alloc_blocks(&mm, bias_start, in drm_test_buddy_alloc_range_bias()
78 "buddy_alloc didn't fail with bias(%x-%x), size=%u, ps=%u\n", in drm_test_buddy_alloc_range_bias()
83 drm_buddy_alloc_blocks(&mm, bias_start + ps, in drm_test_buddy_alloc_range_bias()
[all …]
H A Ddrm_mm_test.c1 // SPDX-License-Identifier: GPL-2.0-only
32 [BOTTOMUP] = { "bottom-up", DRM_MM_INSERT_LOW },
33 [TOPDOWN] = { "top-down", DRM_MM_INSERT_HIGH },
38 static bool assert_no_holes(struct kunit *test, const struct drm_mm *mm) in assert_no_holes() argument
44 count = 0; in assert_no_holes()
45 drm_mm_for_each_hole(hole, mm, hole_start, hole_end) in assert_no_holes()
53 drm_mm_for_each_node(hole, mm) { in assert_no_holes()
63 static bool assert_one_hole(struct kunit *test, const struct drm_mm *mm, u64 start, u64 end) in assert_one_hole() argument
73 count = 0; in assert_one_hole()
74 drm_mm_for_each_hole(hole, mm, hole_start, hole_end) { in assert_one_hole()
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/linux/arch/x86/include/asm/
H A Dmmu_context.h1 /* SPDX-License-Identifier: GPL-2.0 */
32 * Xen requires page-aligned LDTs with special permissions. This is
45 * of an older, still-in-use LDT.
47 * slot will be -1 if this LDT doesn't have an alias mapping.
55 static inline void init_new_context_ldt(struct mm_struct *mm) in init_new_context_ldt() argument
57 mm->context.ldt = NULL; in init_new_context_ldt()
58 init_rwsem(&mm->context.ldt_usr_sem); in init_new_context_ldt()
60 int ldt_dup_context(struct mm_struct *oldmm, struct mm_struct *mm);
61 void destroy_context_ldt(struct mm_struct *mm);
62 void ldt_arch_exit_mmap(struct mm_struct *mm);
[all …]
/linux/drivers/gpu/drm/
H A Ddrm_buddy.c1 // SPDX-License-Identifier: MIT
6 #include <kunit/test-bug.h>
17 static struct drm_buddy_block *drm_block_alloc(struct drm_buddy *mm, in drm_block_alloc() argument
30 block->header = offset; in drm_block_alloc()
31 block->header |= order; in drm_block_alloc()
32 block->parent = parent; in drm_block_alloc()
34 BUG_ON(block->header & DRM_BUDDY_HEADER_UNUSED); in drm_block_alloc()
38 static void drm_block_free(struct drm_buddy *mm, in drm_block_free() argument
44 static void list_insert_sorted(struct drm_buddy *mm, in list_insert_sorted() argument
50 head = &mm->free_list[drm_buddy_block_order(block)]; in list_insert_sorted()
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/linux/arch/m68k/include/asm/
H A Dmmu_context.h1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <asm-generic/mm_hooks.h>
28 static inline void get_mmu_context(struct mm_struct *mm) in get_mmu_context() argument
32 if (mm->context != NO_CONTEXT) in get_mmu_context()
42 ctx = 0; in get_mmu_context()
45 mm->context = ctx; in get_mmu_context()
46 context_mm[ctx] = mm; in get_mmu_context()
52 #define init_new_context(tsk, mm) (((mm)->context = NO_CONTEXT), 0) argument
58 static inline void destroy_context(struct mm_struct *mm) in destroy_context() argument
60 if (mm->context != NO_CONTEXT) { in destroy_context()
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/linux/arch/s390/mm/
H A Dpgtable.c1 // SPDX-License-Identifier: GPL-2.0
13 #include <linux/mm.h>
26 #include <asm/page-states.h>
39 static inline void ptep_ipte_local(struct mm_struct *mm, unsigned long addr, in ptep_ipte_local() argument
45 opt = 0; in ptep_ipte_local()
46 asce = READ_ONCE(mm->context.gmap_asce); in ptep_ipte_local()
47 if (asce == 0UL || nodat) in ptep_ipte_local()
49 if (asce != -1UL) { in ptep_ipte_local()
50 asce = asce ? : mm->context.asce; in ptep_ipte_local()
55 __ptep_ipte(addr, ptep, 0, 0, IPTE_LOCAL); in ptep_ipte_local()
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H A Dgmap_helpers.c1 // SPDX-License-Identifier: GPL-2.0
11 #include <linux/mm.h>
20 * ptep_zap_swap_entry() - discard a swap entry.
21 * @mm: the mm
28 static void ptep_zap_swap_entry(struct mm_struct *mm, swp_entry_t entry) in ptep_zap_swap_entry() argument
31 dec_mm_counter(mm, MM_SWAPENTS); in ptep_zap_swap_entry()
33 dec_mm_counter(mm, mm_counter(pfn_swap_entry_folio(entry))); in ptep_zap_swap_entry()
38 * gmap_helper_zap_one_page() - discard a page if it was swapped.
39 * @mm: the mm
46 void gmap_helper_zap_one_page(struct mm_struct *mm, unsigned long vmaddr) in gmap_helper_zap_one_page() argument
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/linux/arch/arm/mm/
H A Dpgd.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mm/pgd.c
5 * Copyright (C) 1998-2005 Russell King
7 #include <linux/mm.h>
17 #include "mm.h"
20 #define _pgd_alloc(mm) kmalloc_array(PTRS_PER_PGD, sizeof(pgd_t), GFP_KERNEL | __GFP_ZERO) argument
21 #define _pgd_free(mm, pgd) kfree(pgd) argument
23 #define _pgd_alloc(mm) __pgd_alloc(mm, 2) argument
24 #define _pgd_free(mm, pgd) __pgd_free(mm, pgd) argument
30 pgd_t *pgd_alloc(struct mm_struct *mm) in pgd_alloc() argument
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/linux/tools/testing/vma/
H A Dvma.c1 // SPDX-License-Identifier: GPL-2.0-or-later
7 #include "generated/bit-length.h"
9 #include "maple-shared.h"
13 #include "../../../mm/vma.h"
19 (fail_prealloc ? -ENOMEM : mas_preallocate(&(vmi)->mas, (vma), GFP_KERNEL))
29 * provides userland-equivalent functionality for everything vma.c uses.
31 #include "../../../mm/vma_init.c"
32 #include "../../../mm/vma_exec.c"
33 #include "../../../mm/vma.c"
46 } while (0)
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/linux/kernel/
H A Dfork.c1 // SPDX-License-Identifier: GPL-2.0-only
9 * 'fork.c' contains the help-routines for the 'fork' system call
12 * management can be a bitch. See 'mm/memory.c': 'copy_page_range()'
18 #include <linux/sched/mm.h>
45 #include <linux/mm.h>
84 #include <linux/posix-timers.h>
85 #include <linux/user-return-notifier.h>
117 #include "../mm/internal.h"
153 DEFINE_PER_CPU(unsigned long, process_counts) = 0;
168 int total = 0; in nr_processes()
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/linux/arch/sparc/mm/
H A Dtlb.c1 // SPDX-License-Identifier: GPL-2.0
2 /* arch/sparc64/mm/tlb.c
9 #include <linux/mm.h>
26 struct mm_struct *mm = tb->mm; in flush_tlb_pending() local
28 if (!tb->tlb_nr) in flush_tlb_pending()
33 if (CTX_VALID(mm->context)) { in flush_tlb_pending()
34 if (tb->tlb_nr == 1) { in flush_tlb_pending()
35 global_flush_tlb_page(mm, tb->vaddrs[0]); in flush_tlb_pending()
38 smp_flush_tlb_pending(tb->mm, tb->tlb_nr, in flush_tlb_pending()
39 &tb->vaddrs[0]); in flush_tlb_pending()
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H A Dtsb.c1 // SPDX-License-Identifier: GPL-2.0
2 /* arch/sparc64/mm/tsb.c
25 return vaddr & (nentries - 1); in tsb_hash()
37 for (idx = 0; idx < KERNEL_TSB_NENTRIES; idx++) { in flush_tsb_kernel_range_scan()
41 match |= (ent->tag << 22); in flush_tsb_kernel_range_scan()
43 ent->tag = (1UL << TSB_TAG_INVALID_BIT); in flush_tsb_kernel_range_scan()
56 if ((end - start) >> PAGE_SHIFT >= 2 * KERNEL_TSB_NENTRIES) in flush_tsb_kernel_range()
64 if (tag_compare(ent->tag, v)) in flush_tsb_kernel_range()
65 ent->tag = (1UL << TSB_TAG_INVALID_BIT); in flush_tsb_kernel_range()
75 v &= ~0x1UL; in __flush_tsb_one_entry()
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/linux/drivers/net/ethernet/mscc/
H A Docelot_mm.c1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 * Hardware library for MAC Merge Layer and Frame Preemption on TSN-capable
6 * Copyright 2022-2023 NXP
37 case 0: in ocelot_mm_verify_status()
54 struct ocelot_port *ocelot_port = ocelot->ports[port]; in ocelot_port_update_active_preemptible_tcs()
55 struct ocelot_mm_state *mm = &ocelot->mm[port]; in ocelot_port_update_active_preemptible_tcs() local
56 u32 val = 0; in ocelot_port_update_active_preemptible_tcs()
58 lockdep_assert_held(&ocelot->fwd_domain_lock); in ocelot_port_update_active_preemptible_tcs()
65 if ((ocelot_port->phy_mode != PHY_INTERFACE_MODE_QSGMII || in ocelot_port_update_active_preemptible_tcs()
66 ocelot_port->speed == SPEED_1000) && mm->tx_active) in ocelot_port_update_active_preemptible_tcs()
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/linux/fs/proc/
H A Dtask_nommu.c1 // SPDX-License-Identifier: GPL-2.0
3 #include <linux/mm.h>
11 #include <linux/sched/mm.h>
17 * "non-shared". Shared memory may get counted more than once, for
18 * each process that owns it. Non-shared memory is counted
21 void task_mem(struct seq_file *m, struct mm_struct *mm) in task_mem() argument
23 VMA_ITERATOR(vmi, mm, 0); in task_mem()
26 unsigned long bytes = 0, sbytes = 0, slack = 0, size; in task_mem()
28 mmap_read_lock(mm); in task_mem()
32 region = vma->vm_region; in task_mem()
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/linux/arch/powerpc/mm/book3s64/
H A Dmmu_context.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * MMU context allocation for 64-bit kernels.
13 #include <linux/mm.h>
62 * id 0 (aka. ctx->id) is special, we always allocate a new one, even if in realloc_context_ids()
67 * the array, so that we can test if they're non-zero to decide if we in realloc_context_ids()
73 for (i = 0; i < ARRAY_SIZE(ctx->extended_id); i++) { in realloc_context_ids()
74 if (i == 0 || ctx->extended_id[i]) { in realloc_context_ids()
76 if (id < 0) in realloc_context_ids()
79 ctx->extended_id[i] = id; in realloc_context_ids()
84 return ctx->id; in realloc_context_ids()
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H A Dslice.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * address space "slices" (meta-segments) support
15 #include <linux/mm.h>
21 #include <linux/sched/mm.h>
39 (int)SLICE_NUM_LOW, &mask->low_slices); in slice_print_mask()
41 (int)SLICE_NUM_HIGH, mask->high_slices); in slice_print_mask()
44 #define slice_dbg(fmt...) do { if (_slice_debug) pr_devel(fmt); } while (0)
63 unsigned long end = start + len - 1; in slice_range_to_mask()
65 ret->low_slices = 0; in slice_range_to_mask()
67 bitmap_zero(ret->high_slices, SLICE_NUM_HIGH); in slice_range_to_mask()
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H A Dradix_tlb.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright 2015-2016, Aneesh Kumar K.V, IBM Corporation.
8 #include <linux/mm.h>
12 #include <linux/sched/mm.h>
15 #include <asm/ppc-opcode.h>
38 asm volatile(PPC_TLBIEL(%0, %1, %2, %3, 1) in tlbiel_radix_set_isa300()
57 tlbiel_radix_set_isa300(0, is, 0, RIC_FLUSH_ALL, 0); in tlbiel_all_isa300()
61 tlbiel_radix_set_isa300(set, is, 0, in tlbiel_all_isa300()
62 RIC_FLUSH_TLB, 0); in tlbiel_all_isa300()
67 tlbiel_radix_set_isa300(0, is, 0, RIC_FLUSH_ALL, 1); in tlbiel_all_isa300()
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/linux/arch/powerpc/include/asm/
H A Dmmu_context.h1 /* SPDX-License-Identifier: GPL-2.0 */
7 #include <linux/mm.h>
18 extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
20 extern void destroy_context(struct mm_struct *mm);
24 extern bool mm_iommu_preregistered(struct mm_struct *mm);
25 extern long mm_iommu_new(struct mm_struct *mm,
28 extern long mm_iommu_newdev(struct mm_struct *mm, unsigned long ua,
31 extern long mm_iommu_put(struct mm_struct *mm,
33 extern void mm_iommu_init(struct mm_struct *mm);
34 extern struct mm_iommu_table_group_mem_t *mm_iommu_lookup(struct mm_struct *mm,
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/linux/drivers/gpu/drm/amd/amdkfd/
H A Dkfd_mqd_manager_v9.c1 // SPDX-License-Identifier: GPL-2.0 OR MIT
3 * Copyright 2016-2022 Advanced Micro Devices, Inc.
37 static void update_mqd(struct mqd_manager *mm, void *mqd,
41 static uint64_t mqd_stride_v9(struct mqd_manager *mm, in mqd_stride_v9() argument
44 if (mm->dev->kfd->cwsr_enabled && in mqd_stride_v9()
45 q->type == KFD_QUEUE_TYPE_COMPUTE) in mqd_stride_v9()
46 return ALIGN(q->ctl_stack_size, PAGE_SIZE) + in mqd_stride_v9()
49 return mm->mqd_size; in mqd_stride_v9()
62 static void update_cu_mask(struct mqd_manager *mm, void *mqd, in update_cu_mask() argument
66 uint32_t se_mask[KFD_MAX_NUM_SE] = {0}; in update_cu_mask()
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/linux/mm/
H A Dmmu_notifier.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/mm/mmu_notifier.c
13 #include <linux/mm.h>
19 #include <linux/sched/mm.h>
35 * mm->notifier_subscriptions inside the mm_take_all_locks() protected
40 /* all mmu notifiers registered in this mm are queued in this list */
53 * This is a collision-retry read-side/write-side 'lock', a lot like a
54 * seqcount, however this allows multiple write-sides to hold it at
56 * this mm, such that PTES cannot be read into SPTEs (shadow PTEs) while any
59 * Note that the core mm creates nested invalidate_range_start()/end() regions
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H A Ddebug.c1 // SPDX-License-Identifier: GPL-2.0
3 * mm/debug.c
5 * mm/ specific debug routines.
10 #include <linux/mm.h>
36 {0, NULL}
41 {0, NULL}
46 {0, NULL}
49 #define DEF_PAGETYPE_NAME(_name) [PGTY_##_name - 0xf0] = __stringify(_name)
63 unsigned i = (page_type >> 24) - 0xf0; in page_type_name()
74 int mapcount = atomic_read(&page->_mapcount) + 1; in __dump_folio()
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/linux/arch/s390/include/asm/
H A Dmmu_context.h1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Derived from "include/asm-i386/mmu_context.h"
17 #include <asm-generic/mm_hooks.h>
21 struct mm_struct *mm) in init_new_context() argument
25 spin_lock_init(&mm->context.lock); in init_new_context()
26 INIT_LIST_HEAD(&mm->context.gmap_list); in init_new_context()
27 cpumask_clear(&mm->context.cpu_attach_mask); in init_new_context()
28 atomic_set(&mm->context.flush_count, 0); in init_new_context()
29 atomic_set(&mm->context.protected_count, 0); in init_new_context()
30 mm->context.gmap_asce = 0; in init_new_context()
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H A Dtlbflush.h1 /* SPDX-License-Identifier: GPL-2.0 */
6 #include <linux/mm.h>
29 /* Global TLB flush for the mm */ in __tlb_flush_idte()
30 asm volatile("idte 0,%1,%0" : : "a" (opt), "a" (asce) : "cc"); in __tlb_flush_idte()
38 unsigned int dummy = 0; in __tlb_flush_global()
40 csp(&dummy, 0, 0); in __tlb_flush_global()
44 * Flush TLB entries for a specific mm on all CPUs (in case gmap is used
47 static inline void __tlb_flush_mm(struct mm_struct *mm) in __tlb_flush_mm() argument
52 atomic_inc(&mm->context.flush_count); in __tlb_flush_mm()
54 cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask); in __tlb_flush_mm()
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/linux/arch/x86/kernel/
H A Dldt.c1 // SPDX-License-Identifier: GPL-2.0
19 #include <linux/mm.h>
42 void load_mm_ldt(struct mm_struct *mm) in load_mm_ldt() argument
47 ldt = READ_ONCE(mm->context.ldt); in load_mm_ldt()
50 * Any change to mm->context.ldt is followed by an IPI to all in load_mm_ldt()
51 * CPUs with the mm active. The LDT will not be freed until in load_mm_ldt()
65 if (WARN_ON_ONCE((unsigned long)ldt->slot > 1)) { in load_mm_ldt()
67 * Whoops -- either the new LDT isn't mapped in load_mm_ldt()
68 * (if slot == -1) or is mapped into a bogus in load_mm_ldt()
76 * If page table isolation is enabled, ldt->entries in load_mm_ldt()
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/linux/kernel/sched/
H A Dmembarrier.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2010-2017 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
19 * int x = 0, y = 0;
24 * CPU1 after the IPI-induced memory barrier:
31 * b: send IPI IPI-induced mb
38 * BUG_ON(r1 == 0 && r2 == 0)
43 * can be reordered after (a) (although not after (c)), so we get r1 == 0
44 * and r2 == 0. This violates the guarantee that membarrier() is
48 * before the IPI-induced memory barrier on CPU1.
55 * int x = 0, y = 0;
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