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/Linux-v5.4/Documentation/xtensa/
Dmmu.rst62 5. The parent-bus-address value is rounded down to the nearest 256MB boundary
64 6. The IO area covers the entire 256MB segment of parent-bus-address; the
83 | VMALLOC area | VMALLOC_START 0xc0000000 128MB - 64KB
95 | | (4MB * DCACHE_N_COLORS)
103 | Cached KSEG | XCHAL_KSEG_CACHED_VADDR 0xd0000000 128MB
105 | Uncached KSEG | XCHAL_KSEG_BYPASS_VADDR 0xd8000000 128MB
107 | Cached KIO | XCHAL_KIO_CACHED_VADDR 0xe0000000 256MB
109 | Uncached KIO | XCHAL_KIO_BYPASS_VADDR 0xf0000000 256MB
113 256MB cached + 256MB uncached layout::
125 | VMALLOC area | VMALLOC_START 0xa0000000 128MB - 64KB
[all …]
/Linux-v5.4/arch/x86/kernel/
Dearly-quirks.c242 #define MB(x) (KB (KB (x))) macro
252 return MB(1); in i830_tseg_size()
267 case I845_TSEG_SIZE_1M: return MB(1); in i845_tseg_size()
281 return MB(1); in i85x_tseg_size()
286 return read_pci_config_byte(0, 0, 0, I830_DRB3) * MB(32); in i830_mem_size()
291 return read_pci_config_byte(0, 0, 1, I85X_DRB3) * MB(32); in i85x_mem_size()
363 case I830_GMCH_GMS_STOLEN_1024: return MB(1); in i830_stolen_size()
364 case I830_GMCH_GMS_STOLEN_8192: return MB(8); in i830_stolen_size()
383 case I855_GMCH_GMS_STOLEN_1M: return MB(1); in gen3_stolen_size()
384 case I855_GMCH_GMS_STOLEN_4M: return MB(4); in gen3_stolen_size()
[all …]
/Linux-v5.4/tools/testing/selftests/cgroup/
Dtest_memcontrol.c91 size_t size = MB(50); in alloc_anon_50M_check()
122 size_t size = MB(50); in alloc_pagecache_50M_check()
193 return alloc_pagecache(fd, MB(50)); in alloc_pagecache_50M()
201 if (alloc_pagecache(fd, MB(50))) in alloc_pagecache_50M_noexit()
345 MB(150), 3)) { in test_memcg_min()
351 if (cg_run(parent[2], alloc_anon, (void *)MB(148))) in test_memcg_min()
354 if (!values_close(cg_read_long(parent[1], "memory.current"), MB(50), 3)) in test_memcg_min()
360 if (!values_close(c[0], MB(33), 10)) in test_memcg_min()
363 if (!values_close(c[1], MB(17), 10)) in test_memcg_min()
369 if (!cg_run(parent[2], alloc_anon, (void *)MB(170))) in test_memcg_min()
[all …]
/Linux-v5.4/Documentation/devicetree/bindings/pci/
Dv3-v360epc-pci.txt11 second the configuration area register space, 16MB
18 each be exactly 256MB (0x10000000) in size.
22 be aligned to a 1MB boundary, and may be 1MB, 2MB, 4MB, 8MB, 16MB, 32MB,
23 64MB, 128MB, 256MB, 512MB, 1GB or 2GB in size. The memory should be marked
50 0x20000000 0 0x20000000 /* 512 MB @ LB 20000000 1:1 */
Dfaraday,ftpci100.txt29 be aligned to a 1MB boundary, and may be 1MB, 2MB, 4MB, 8MB, 16MB, 32MB, 64MB,
30 128MB, 256MB, 512MB, 1GB or 2GB in size. The memory should be marked as
/Linux-v5.4/arch/x86/kernel/cpu/
Dcacheinfo.c38 #define MB(x) ((x) * 1024) macro
54 { 0x23, LVL_3, MB(1) }, /* 8-way set assoc, sectored cache, 64 byte line size */
55 { 0x25, LVL_3, MB(2) }, /* 8-way set assoc, sectored cache, 64 byte line size */
56 { 0x29, LVL_3, MB(4) }, /* 8-way set assoc, sectored cache, 64 byte line size */
69 { 0x44, LVL_2, MB(1) }, /* 4-way set assoc, 32 byte line size */
70 { 0x45, LVL_2, MB(2) }, /* 4-way set assoc, 32 byte line size */
71 { 0x46, LVL_3, MB(4) }, /* 4-way set assoc, 64 byte line size */
72 { 0x47, LVL_3, MB(8) }, /* 8-way set assoc, 64 byte line size */
73 { 0x48, LVL_2, MB(3) }, /* 12-way set assoc, 64 byte line size */
74 { 0x49, LVL_3, MB(4) }, /* 16-way set assoc, 64 byte line size */
[all …]
/Linux-v5.4/Documentation/x86/x86_64/
Dmm.rst20 from TB to GB and then MB/KB.
65 …ffffffff80000000 | -2 GB | ffffffff9fffffff | 512 MB | kernel text mapping, mapped to physic…
66 ffffffff80000000 |-2048 MB | | |
67 ffffffffa0000000 |-1536 MB | fffffffffeffffff | 1520 MB | module mapping space
68 ffffffffff000000 | -16 MB | | |
69 …FIXADDR_START | ~-11 MB | ffffffffff5fffff | ~0.5 MB | kernel-internal fixmap range, variable s…
70 ffffffffff600000 | -10 MB | ffffffffff600fff | 4 kB | legacy vsyscall ABI
71 ffffffffffe00000 | -2 MB | ffffffffffffffff | 2 MB | ... unused hole
124 …ffffffff80000000 | -2 GB | ffffffff9fffffff | 512 MB | kernel text mapping, mapped to physic…
125 ffffffff80000000 |-2048 MB | | |
[all …]
/Linux-v5.4/arch/powerpc/boot/dts/fsl/
Dc293pcie.dts83 /* 1MB for DTB Image */
89 /* 8 MB for Linux Kernel Image */
95 /* 53MB for rootfs */
101 /* 1MB for blob encrypted key */
122 /* 1MB for u-boot Bootloader Image */
129 /* 1MB for DTB Image */
135 /* 16MB for Linux Kernel Image */
141 /* 4078MB for Root file System Image */
175 /* 1MB for u-boot Bootloader Image */
176 /* 1MB for Environment */
[all …]
Dp1024rdb.dtsi59 /* 3.5 MB for Linux Kernel Image */
65 /* 11MB for JFFS2 based Root file System */
89 /* 1MB for u-boot Bootloader Image */
96 /* 1MB for DTB Image */
102 /* 4MB for Linux Kernel Image */
108 /* 4MB for Compressed Root file System Image */
114 /* 15MB for JFFS2 based Root file System */
120 /* 7MB for User Writable Area */
150 /* 4MB for Linux Kernel Image */
156 /* 4MB for Compressed RFS Image */
[all …]
Dp2020rdb.dts60 /* 3.5 MB for Linux Kernel Image */
67 /* 11MB for JFFS2 based Root file System */
91 /* 1MB for u-boot Bootloader Image */
98 /* 1MB for DTB Image */
105 /* 4MB for Linux Kernel Image */
112 /* 4MB for Compressed Root file System Image */
119 /* 7MB for JFFS2 based Root file System */
125 /* 15MB for JFFS2 based Root file System */
173 /* 4MB for Linux Kernel Image */
180 /* 4MB for Compressed RFS Image */
[all …]
Dp1020rdb.dtsi60 /* 3.5 MB for Linux Kernel Image */
67 /* 11MB for JFFS2 based Root file System */
91 /* 1MB for u-boot Bootloader Image */
98 /* 1MB for DTB Image */
105 /* 4MB for Linux Kernel Image */
112 /* 4MB for Compressed Root file System Image */
119 /* 7MB for JFFS2 based Root file System */
125 /* 15MB for JFFS2 based Root file System */
170 /* 4MB for Linux Kernel Image */
177 /* 4MB for Compressed RFS Image */
[all …]
Dp2020rdb-pc.dtsi59 /* 3.5 MB for Linux Kernel Image */
65 /* 11MB for JFFS2 based Root file System */
89 /* 1MB for u-boot Bootloader Image */
96 /* 1MB for DTB Image */
102 /* 4MB for Linux Kernel Image */
108 /* 4MB for Compressed Root file System Image */
114 /* 7MB for JFFS2 based Root file System */
120 /* 15MB for JFFS2 based Root file System */
172 /* 4MB for Linux Kernel Image */
178 /* 4MB for Compressed RFS Image */
[all …]
Dp1021rdb-pc.dtsi59 /* 3.5 MB for Linux Kernel Image */
65 /* 10.75MB for JFFS2 based Root file System */
96 /* 1MB for u-boot Bootloader Image */
103 /* 1MB for DTB Image */
109 /* 4MB for Linux Kernel Image */
115 /* 4MB for Compressed Root file System Image */
121 /* 7MB for JFFS2 based Root file System */
127 /* 15MB for User Writable Area */
171 /* 4MB for Linux Kernel Image */
177 /* 4MB for Compressed RFS Image */
[all …]
Dp1020rdb-pc.dtsi59 /* 3.5 MB for Linux Kernel Image */
65 /* 11MB for JFFS2 based Root file System */
89 /* 1MB for u-boot Bootloader Image */
96 /* 1MB for DTB Image */
102 /* 4MB for Linux Kernel Image */
108 /* 4MB for Compressed Root file System Image */
114 /* 7MB for JFFS2 based Root file System */
120 /* 15MB for JFFS2 based Root file System */
172 /* 4MB for Linux Kernel Image */
178 /* 4MB for Compressed RFS Image */
[all …]
Dp1010rdb-pa.dtsi38 /* 1MB for u-boot Bootloader Image */
45 /* 1MB for DTB Image */
51 /* 4MB for Linux Kernel Image */
57 /* 4MB for Compressed Root file System Image */
63 /* 15MB for JFFS2 based Root file System */
69 /* 7MB for User Area */
Dsbc8641d.dts26 ranges = <0 0 0xff000000 0x01000000 // 16MB Boot flash
28 2 0 0xf1000000 0x00100000 // EPLD (1MB)
29 3 0 0xe0000000 0x04000000 // 64MB LB SDRAM (CS3)
30 4 0 0xe4000000 0x04000000 // 64MB LB SDRAM (CS4)
31 6 0 0xf4000000 0x00100000 // LCD display (1MB)
32 7 0 0xe8000000 0x04000000>; // 64MB OneNAND
/Linux-v5.4/arch/alpha/kernel/
Dpci.c123 #define MB (1024*KB) macro
124 #define GB (1024*MB)
170 if (hose->sparse_mem_base && size <= 7 * 16*MB) { in pcibios_align_resource()
171 if (((start / (16*MB)) & 0x7) == 0) { in pcibios_align_resource()
172 start &= ~(128*MB - 1); in pcibios_align_resource()
173 start += 16*MB; in pcibios_align_resource()
176 if (start/(128*MB) != (start + size - 1)/(128*MB)) { in pcibios_align_resource()
177 start &= ~(128*MB - 1); in pcibios_align_resource()
178 start += (128 + 16)*MB; in pcibios_align_resource()
187 #undef MB
/Linux-v5.4/Documentation/translations/zh_CN/arm64/
Dbooting.txt69 设备树数据块（dtb）必须 8 字节对齐，且大小不能超过 2MB。由于设备树
70 数据块将在使能缓存的情况下以 2MB 粒度被映射，故其不能被置于必须以特定
74 text_offset 字节处算起第一个 512MB 内。
129 0 - 2MB 对齐基址应尽量靠近内存起始处，因为
131 1 - 2MB 对齐基址可以在物理内存的任意位置
138 内核映像必须被放置在任意一个可用系统内存 2MB 对齐基址的 text_offset
139 字节处，并从该处被调用。2MB 对齐基址和内核映像起始地址之间的区域对于
/Linux-v5.4/arch/arm64/boot/dts/broadcom/northstar2/
Dns2-xmc.dts90 reg = <0x00000000 0x00280000>; /* 2.5MB */
96 reg = <0x00280000 0x00040000>; /* 0.25MB */
102 reg = <0x002c0000 0x00040000>; /* 0.25MB */
108 reg = <0x00300000 0x03d00000>; /* 61MB */
114 reg = <0x04000000 0x06400000>; /* 100MB */
119 reg = <0x0a400000 0x35c00000>; /* 860MB */
179 reg = <0x00200000 0x00e00000>; /* 14MB */
184 reg = <0x01000000 0x01000000>; /* 16MB */
/Linux-v5.4/Documentation/arm64/
Dmemory.rst36 ffffa00000000000 ffffa00007ffffff 128MB bpf jit region
37 ffffa00008000000 ffffa0000fffffff 128MB modules
39 fffffdffbfff0000 fffffdfffe5f8fff ~998MB [guard region]
41 fffffdfffea00000 fffffdfffebfffff 2MB [guard region]
42 fffffdfffec00000 fffffdffffbfffff 16MB PCI I/O space
43 fffffdffffc00000 fffffdffffdfffff 2MB [guard region]
45 ffffffffffe00000 ffffffffffffffff 2MB [guard region]
56 ffffa00000000000 ffffa00007ffffff 128MB bpf jit region
57 ffffa00008000000 ffffa0000fffffff 128MB modules
61 fffffc1ffea00000 fffffc1ffebfffff 2MB [guard region]
[all …]
/Linux-v5.4/arch/arm/boot/dts/
Darmada-xp-linksys-mamba.dts36 reg = <0x00000000 0x00000000 0x00000000 0x10000000>; /* 256MB */
337 reg = <0x0000000 0x100000>; /* 1MB */
353 reg = <0x900000 0x100000>; /* 1MB */
360 reg = <0xa00000 0x2800000>; /* 40MB */
365 reg = <0xd00000 0x2500000>; /* 37MB */
371 reg = <0x3200000 0x2800000>; /* 40MB */
376 reg = <0x3500000 0x2500000>; /* 37MB */
380 * 38MB, last MB is for the BBT, not writable
395 reg = <0x180000 0x780000>; /* 7.5MB */
Dkirkwood-laplug.dts20 reg = <0x00000000 0x8000000>; /* 128 MB */
126 /* Total size : 512MB */
131 reg = <0x0 0x100000>; /* 1MB */
137 reg = <0x100000 0x1000000>; /* 16MB */
142 reg = <0x1100000 0x1EF00000>; /* 495MB */
/Linux-v5.4/arch/powerpc/boot/dts/
Dsbc8548-altflash.dts5 * Configured for booting off the alternate (64MB SODIMM) flash.
26 ranges = <0x0 0x0 0xfc000000 0x04000000 /*64MB Flash*/
27 0x3 0x0 0xf0000000 0x04000000 /*64MB SDRAM*/
28 0x4 0x0 0xf4000000 0x04000000 /*64MB SDRAM*/
30 0x6 0x0 0xef800000 0x00800000>; /*8MB Flash*/
/Linux-v5.4/drivers/char/agp/
Dintel-gtt.c357 stolen_size = MB(1); in intel_gtt_stolen_size()
360 stolen_size = MB(8); in intel_gtt_stolen_size()
365 MB(ddt[I830_RDRAM_DDT(rdct)]); in intel_gtt_stolen_size()
375 stolen_size = MB(1); in intel_gtt_stolen_size()
378 stolen_size = MB(4); in intel_gtt_stolen_size()
381 stolen_size = MB(8); in intel_gtt_stolen_size()
384 stolen_size = MB(16); in intel_gtt_stolen_size()
387 stolen_size = MB(32); in intel_gtt_stolen_size()
390 stolen_size = MB(48); in intel_gtt_stolen_size()
393 stolen_size = MB(64); in intel_gtt_stolen_size()
[all …]
/Linux-v5.4/arch/x86/pci/
Dce4100.c44 #define MB (1024 * 1024) macro
104 DEFINE_REG(2, 0, 0x10, (16*MB), reg_init, reg_read, reg_write)
113 DEFINE_REG(8, 0, 0x10, (1*MB), reg_init, reg_read, reg_write)
116 DEFINE_REG(9, 0, 0x10 , (1*MB), reg_init, reg_read, reg_write)
119 DEFINE_REG(10, 0, 0x14, (256*MB), reg_init, reg_read, reg_write)
148 DEFINE_REG(16, 0, 0x14, (64*MB), reg_init, reg_read, reg_write)
149 DEFINE_REG(16, 0, 0x18, (64*MB), reg_init, reg_read, reg_write)
207 av_bridge_limit = av_bridge_base + (512*MB - 1); in bridge_read()

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