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/linux-6.6.21/Documentation/arch/x86/
Dpat.rst159 For example: If there is an existing uncached mapping, a new ioremap_wc can
160 return uncached mapping in place of write-combine requested.
182 uncached-minus @ 0x7fadf000-0x7fae0000
183 uncached-minus @ 0x7fb19000-0x7fb1a000
184 uncached-minus @ 0x7fb1a000-0x7fb1b000
185 uncached-minus @ 0x7fb1b000-0x7fb1c000
186 uncached-minus @ 0x7fb1c000-0x7fb1d000
187 uncached-minus @ 0x7fb1d000-0x7fb1e000
188 uncached-minus @ 0x7fb1e000-0x7fb25000
189 uncached-minus @ 0x7fb25000-0x7fb26000
[all …]
/linux-6.6.21/Documentation/arch/arm/
Dswp_emulation.rst23 when accessing uncached shared regions, LDREX/STREX rely on an external
26 cause programs that perform SWP operations to uncached memory to deadlock, as
/linux-6.6.21/sound/hda/
Dhdac_regmap.c467 unsigned int *val, bool uncached) in reg_raw_read() argument
472 if (uncached || !codec->regmap) in reg_raw_read()
482 bool uncached) in __snd_hdac_regmap_read_raw() argument
484 return CALL_RAW_FUNC(codec, reg_raw_read(codec, reg, val, uncached)); in __snd_hdac_regmap_read_raw()
/linux-6.6.21/drivers/scsi/esas2r/
Desas2r_init.c374 a->uncached = dma_alloc_coherent(&pcid->dev, in esas2r_init_adapter()
378 if (a->uncached == NULL) { in esas2r_init_adapter()
390 a->uncached, in esas2r_init_adapter()
393 memset(a->uncached, 0, a->uncached_size); in esas2r_init_adapter()
394 next_uncached = a->uncached; in esas2r_init_adapter()
587 if (a->uncached) { in esas2r_kill_adapter()
590 a->uncached, in esas2r_kill_adapter()
592 a->uncached = NULL; in esas2r_kill_adapter()
1056 ((u8 *)a->outbound_copy - a->uncached); in esas2r_check_adapter()
Desas2r_flash.c1316 a->uncached_phys + (u64)((u8 *)n - a->uncached)); in esas2r_nvram_write()
1322 + (u64)((u8 *)n - a->uncached)); in esas2r_nvram_write()
Desas2r_disc.c1039 + (u64)((u8 *)a->disc_buffer - a->uncached); in esas2r_disc_get_phys_addr()
Desas2r.h867 u8 *uncached; member
/linux-6.6.21/Documentation/filesystems/
Dfuse-io.rst31 uncached, but fully written pages). No READ requests are ever sent for writes,
32 so when an uncached page is partially written, the page is discarded.
/linux-6.6.21/arch/mips/lib/
DMakefile8 strnlen_user.o uncached.o
/linux-6.6.21/drivers/gpu/drm/nouveau/include/nvif/
Dif0008.h33 __u8 uncached; member
/linux-6.6.21/arch/sh/mm/
DMakefile42 obj-$(CONFIG_UNCACHED_MAPPING) += uncached.o
/linux-6.6.21/Documentation/arch/xtensa/
Dmmu.rst114 256MB cached + 256MB uncached layout::
158 512MB cached + 512MB uncached layout::
/linux-6.6.21/arch/ia64/kernel/
DMakefile30 obj-$(CONFIG_IA64_UNCACHED_ALLOCATOR) += uncached.o
/linux-6.6.21/Documentation/arch/loongarch/
Dintroduction.rst316 KPRANGE1, PA is equal to VA with bit30~31 cleared. For example, the uncached
337 is configured by bits 60~61 in VA: 0 is for strongly-ordered uncached, 1 is
338 for coherent cached, and 2 is for weakly-ordered uncached.
342 To put this in action: the strongly-ordered uncached direct-mapped VA (in
345 and the weakly-ordered uncached direct-mapped VA (in XKPRANGE) of 0x00000000
/linux-6.6.21/drivers/gpu/drm/nouveau/nvif/
Dmmu.c111 if (args.uncached) mmu->type[i].type |= NVIF_MEM_UNCACHED; in nvif_mmu_ctor()
/linux-6.6.21/drivers/media/pci/ivtv/
DKconfig78 PAT-enabled systems but the framebuffer memory will be uncached.
/linux-6.6.21/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/
Dummu.c98 args->v0.uncached = !!(type & NVKM_MEM_UNCACHED); in nvkm_ummu_type()
/linux-6.6.21/drivers/gpu/drm/amd/amdgpu/
Dgmc_v9_0.c1187 bool uncached = bo->flags & AMDGPU_GEM_CREATE_UNCACHED; in gmc_v9_0_get_coherence_flags() local
1198 if (uncached) in gmc_v9_0_get_coherence_flags()
1212 if (uncached || coherent) in gmc_v9_0_get_coherence_flags()
1220 if (uncached || coherent) in gmc_v9_0_get_coherence_flags()
1252 if (uncached) { in gmc_v9_0_get_coherence_flags()
1268 if (uncached || coherent) in gmc_v9_0_get_coherence_flags()
/linux-6.6.21/kernel/dma/
DKconfig44 # DMA_ATTR_WRITE_COMBINE. Normally the "uncached" mapping should be what
125 # The only thing that is really required is a way to set an uncached bit
/linux-6.6.21/include/trace/events/
Dmmflags.h123 IF_HAVE_PG_UNCACHED(uncached) \
/linux-6.6.21/include/linux/
Dpage-flags.h566 PAGEFLAG(Uncached, uncached, PF_NO_COMPOUND)
568 PAGEFLAG_FALSE(Uncached, uncached)
/linux-6.6.21/arch/xtensa/
DKconfig746 bool "MMUv2: 128MB cached + 128MB uncached"
754 bool "256MB cached + 256MB uncached"
762 bool "512MB cached + 512MB uncached"
779 at 0xd0000000 (cached) and 0xd8000000 (uncached).
/linux-6.6.21/Documentation/driver-api/usb/
Ddma.rst69 On most systems the memory returned will be uncached, because the
/linux-6.6.21/Documentation/driver-api/
Ddevice-io.rst161 uncached virtual address pointing to the physical MMIO address, some
412 'PAT' mode, it marks memory as uncached even when the MTRR has designated
/linux-6.6.21/arch/arm/mm/
DKconfig737 NOTE: when accessing uncached shared regions, LDREX/STREX rely
741 perform SWP operations to uncached memory to deadlock.

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