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/Linux-v6.6/Documentation/arch/x86/
Dpat.rst4 PAT (Page Attribute Table)
7 x86 Page Attribute Table (PAT) allows for setting the memory attribute at the
8 page level granularity. PAT is complementary to the MTRR settings which allows
9 for setting of memory types over physical address ranges. However, PAT is
16 PAT allows for different types of memory attributes. The most commonly used
28 PAT APIs
108 With PAT support, a new API pgprot_writecombine is being added. So, drivers can
120 MTRR effects on PAT / non-PAT systems
124 using ioremap*() calls on x86 for both non-PAT and PAT systems. Ideally
126 be a no-op on PAT enabled systems. The region over which a arch_phys_wc_add()
[all …]
Dmtrr.rst14 MTRR use is replaced on modern x86 hardware with PAT. Direct MTRR use by
17 non-PAT systems while a no-op but equally effective on PAT enabled systems.
/Linux-v6.6/drivers/media/pci/ivtv/
DKconfig64 bool "force cx23415 framebuffer init with x86 PAT enabled"
67 With PAT enabled, the cx23415 framebuffer driver does not
70 when initializied on a kernel with PAT enabled (i.e. not
73 The driver is not easily upgradable to the PAT-aware
78 PAT-enabled systems but the framebuffer memory will be uncached.
/Linux-v6.6/drivers/media/i2c/
Dsaa6752hs.c115 static const u8 PAT[] = { variable
462 memcpy(localPAT, PAT, sizeof(PAT)); in saa6752hs_init()
465 crc = crc32_be(~0, &localPAT[7], sizeof(PAT) - 7 - 4); in saa6752hs_init()
466 localPAT[sizeof(PAT) - 4] = (crc >> 24) & 0xFF; in saa6752hs_init()
467 localPAT[sizeof(PAT) - 3] = (crc >> 16) & 0xFF; in saa6752hs_init()
468 localPAT[sizeof(PAT) - 2] = (crc >> 8) & 0xFF; in saa6752hs_init()
469 localPAT[sizeof(PAT) - 1] = crc & 0xFF; in saa6752hs_init()
503 i2c_master_send(client, localPAT, sizeof(PAT)); in saa6752hs_init()
/Linux-v6.6/arch/x86/mm/pat/
Dmemtype.c257 #define PAT(p0, p1, p2, p3, p4, p5, p6, p7) \ in pat_bp_init() macro
293 pat_msr_val = PAT(WB, WT, UC_MINUS, UC, WB, WT, UC_MINUS, UC); in pat_bp_init()
333 pat_msr_val = PAT(WB, WC, UC_MINUS, UC, WB, WC, UC_MINUS, UC); in pat_bp_init()
361 pat_msr_val = PAT(WB, WC, UC_MINUS, UC, WB, WP, UC_MINUS, WT); in pat_bp_init()
367 #undef PAT in pat_bp_init()
/Linux-v6.6/Documentation/translations/zh_CN/mm/
Dhighmem.rst139 是，PAE有更多的PTE位，可以提供像NX和PAT这样的高级功能。
/Linux-v6.6/Documentation/driver-api/media/drivers/
Dvidtv.rst152 Currently vidtv supports working with 5 PSI tables: PAT, PMT,
155 The specification for PAT and PMT can be found in *ISO 13818-1:
198 #. Their programs will be concatenated to populate the PAT
202 #. For each program in the PAT, a PMT section will be created
/Linux-v6.6/arch/x86/kvm/
Dcpuid.c617 F(PAT) | F(PSE36) | 0 /* PSN */ | F(CLFLUSH) | in kvm_set_cpu_caps()
701 F(PAT) | F(PSE36) | 0 /* Reserved */ | in kvm_set_cpu_caps()
/Linux-v6.6/Documentation/mm/
Dhighmem.rst200 like NX and PAT.
/Linux-v6.6/Documentation/driver-api/
Ddevice-io.rst412 'PAT' mode, it marks memory as uncached even when the MTRR has designated
/Linux-v6.6/arch/x86/
DKconfig1776 prompt "x86 PAT support" if EXPERT
1779 Use PAT attributes to setup page level cache control.
/Linux-v6.6/lib/
DKconfig.debug1847 be used by people debugging the kernel. Note that with PAT support
/Linux-v6.6/Documentation/admin-guide/
Dkernel-parameters.txt1005 debugpat [X86] Enable PAT debugging
3844 nopat [X86] Disable PAT (page attribute table extension of