| /linux-4.4.14/mm/ |
| D | cma_debug.c | 37 struct cma *cma = data; in cma_used_get() local
40 mutex_lock(&cma->lock); in cma_used_get()
42 used = bitmap_weight(cma->bitmap, (int)cma_bitmap_maxno(cma)); in cma_used_get()
43 mutex_unlock(&cma->lock); in cma_used_get()
44 *val = (u64)used << cma->order_per_bit; in cma_used_get()
52 struct cma *cma = data; in cma_maxchunk_get() local
55 unsigned long bitmap_maxno = cma_bitmap_maxno(cma); in cma_maxchunk_get()
57 mutex_lock(&cma->lock); in cma_maxchunk_get()
59 start = find_next_zero_bit(cma->bitmap, bitmap_maxno, end); in cma_maxchunk_get()
60 if (start >= cma->count) in cma_maxchunk_get()
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| D | cma.c | 42 struct cma cma_areas[MAX_CMA_AREAS];
46 phys_addr_t cma_get_base(const struct cma *cma) in cma_get_base() argument
48 return PFN_PHYS(cma->base_pfn); in cma_get_base()
51 unsigned long cma_get_size(const struct cma *cma) in cma_get_size() argument
53 return cma->count << PAGE_SHIFT; in cma_get_size()
56 static unsigned long cma_bitmap_aligned_mask(const struct cma *cma, in cma_bitmap_aligned_mask() argument
59 if (align_order <= cma->order_per_bit) in cma_bitmap_aligned_mask()
61 return (1UL << (align_order - cma->order_per_bit)) - 1; in cma_bitmap_aligned_mask()
68 static unsigned long cma_bitmap_aligned_offset(const struct cma *cma, in cma_bitmap_aligned_offset() argument
71 if (align_order <= cma->order_per_bit) in cma_bitmap_aligned_offset()
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| D | cma.h | 4 struct cma { struct
16 extern struct cma cma_areas[MAX_CMA_AREAS]; argument
19 static inline unsigned long cma_bitmap_maxno(struct cma *cma) in cma_bitmap_maxno() argument
21 return cma->count >> cma->order_per_bit; in cma_bitmap_maxno()
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| D | Makefile | 77 obj-$(CONFIG_CMA) += cma.o
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| /linux-4.4.14/include/linux/ |
| D | dma-contiguous.h | 58 struct cma;
63 extern struct cma *dma_contiguous_default_area;
65 static inline struct cma *dev_get_cma_area(struct device *dev) in dev_get_cma_area()
72 static inline void dev_set_cma_area(struct device *dev, struct cma *cma) in dev_set_cma_area() argument
75 dev->cma_area = cma; in dev_set_cma_area()
78 static inline void dma_contiguous_set_default(struct cma *cma) in dma_contiguous_set_default() argument
80 dma_contiguous_default_area = cma; in dma_contiguous_set_default()
86 phys_addr_t limit, struct cma **res_cma,
105 struct cma *cma; in dma_declare_contiguous() local
107 ret = dma_contiguous_reserve_area(size, base, limit, &cma, true); in dma_declare_contiguous()
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| D | cma.h | 16 struct cma;
19 extern phys_addr_t cma_get_base(const struct cma *cma);
20 extern unsigned long cma_get_size(const struct cma *cma);
25 bool fixed, struct cma **res_cma);
28 struct cma **res_cma);
29 extern struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align);
30 extern bool cma_release(struct cma *cma, const struct page *pages, unsigned int count);
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| D | device.h | 815 struct cma *cma_area; /* contiguous memory area for dma
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| /linux-4.4.14/Documentation/cma/ |
| D | debugfs.txt | 4 Each CMA zone represents a directory under <debugfs>/cma/, indexed by the
7 <debugfs>/cma/cma-0
17 echo 5 > <debugfs>/cma/cma-2/alloc
19 would try to allocate 5 pages from the cma-2 area.
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| /linux-4.4.14/drivers/base/ |
| D | dma-contiguous.c | 37 struct cma *dma_contiguous_default_area;
163 phys_addr_t limit, struct cma **res_cma, in dma_contiguous_reserve_area()
248 struct cma *cma; in rmem_cma_setup() local
260 err = cma_init_reserved_mem(rmem->base, rmem->size, 0, &cma); in rmem_cma_setup()
269 dma_contiguous_set_default(cma); in rmem_cma_setup()
272 rmem->priv = cma; in rmem_cma_setup()
279 RESERVEDMEM_OF_DECLARE(cma, "shared-dma-pool", rmem_cma_setup);
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| D | Kconfig | 258 You can disable CMA by specifying "cma=0" on the kernel's command
275 default, but it can be enabled by passing cma=size[MG] to the kernel.
287 enabled by passing cma=size[MG] to the kernel.
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| /linux-4.4.14/drivers/isdn/hardware/eicon/ |
| D | di.c | 570 byte *cma = NULL; in isdn_ind() local
609 (int)a->rx_stream[this->Id], (void **)&cma, &d); in isdn_ind()
611 cma = &a->stream_buffer[0]; in isdn_ind()
612 cma[0] = cma[1] = cma[2] = cma[3] = 0; in isdn_ind()
614 this->RLength = MLength = (word)*(dword *)cma; in isdn_ind()
615 cma += 4; in isdn_ind()
618 cma = &a->stream_buffer[0]; in isdn_ind()
621 cma, in isdn_ind()
631 memcpy(IoAdapter->RBuffer.P, cma, IoAdapter->RBuffer.length); in isdn_ind()
635 if (!cma) { in isdn_ind()
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| /linux-4.4.14/drivers/staging/android/ |
| D | TODO | 23 - Add dt-binding to expose cma regions as ion heaps, with the rule that any
24 such cma regions must already be used by some device for dma. I.e. ion only
25 exposes existing cma regions and doesn't reserve unecessarily memory when
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| /linux-4.4.14/Documentation/devicetree/bindings/reserved-memory/ |
| D | reserved-memory.txt | 68 - If a "linux,cma-default" property is present, then Linux will use the
81 one default of all device drivers (named linux,cma@72000000 and 64MiB in size),
99 linux,cma {
104 linux,cma-default;
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| /linux-4.4.14/drivers/gpu/drm/nouveau/include/nvkm/subdev/ |
| D | pci.h | 17 bool cma; member
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| /linux-4.4.14/Documentation/DocBook/ |
| D | gpu.xml.db | 75 API-drm-gem-cma-create
76 API-drm-gem-cma-free-object
77 API-drm-gem-cma-dumb-create-internal
78 API-drm-gem-cma-dumb-create
79 API-drm-gem-cma-dumb-map-offset
80 API-drm-gem-cma-mmap
81 API-drm-gem-cma-describe
82 API-drm-gem-cma-prime-get-sg-table
83 API-drm-gem-cma-prime-import-sg-table
84 API-drm-gem-cma-prime-mmap
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| /linux-4.4.14/include/trace/events/ |
| D | cma.h | 2 #define TRACE_SYSTEM cma
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| /linux-4.4.14/drivers/infiniband/core/ |
| D | Makefile | 25 rdma_cm-y := cma.o
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| /linux-4.4.14/arch/arm/mach-shmobile/ |
| D | setup-rcar-gen2.c | 185 struct cma *rcar_gen2_dma_contiguous;
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| /linux-4.4.14/drivers/gpu/drm/nouveau/ |
| D | nouveau_drm.h | 119 bool cma; member
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| D | nouveau_ttm.c | 351 drm->agp.cma = pci->agp.cma; in nouveau_ttm_init()
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| D | nouveau_bo.c | 1373 mem->bus.is_iomem = !drm->agp.cma; in nouveau_ttm_io_mem_reserve()
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| /linux-4.4.14/drivers/gpu/drm/nouveau/nvkm/subdev/pci/ |
| D | agp.c | 135 pci->agp.cma = info.cant_use_aperture; in nvkm_agp_ctor()
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| /linux-4.4.14/arch/powerpc/kvm/ |
| D | book3s_hv_builtin.c | 41 static struct cma *kvm_cma;
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| /linux-4.4.14/Documentation/arm/OMAP/ |
| D | DSS | 290 allocator, and if CMA is enabled, you use "cma=" kernel parameter to increase
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| /linux-4.4.14/Documentation/ |
| D | kernel-parameters.txt | 666 cma=nn[MG]@[start[MG][-end[MG]]]
|