mirror of https://gitee.com/openkylin/linux.git
12f03ee606
1/ Introduce ZONE_DEVICE and devm_memremap_pages() as a generic
mechanism for adding device-driver-discovered memory regions to the
kernel's direct map. This facility is used by the pmem driver to
enable pfn_to_page() operations on the page frames returned by DAX
('direct_access' in 'struct block_device_operations'). For now, the
'memmap' allocation for these "device" pages comes from "System
RAM". Support for allocating the memmap from device memory will
arrive in a later kernel.
2/ Introduce memremap() to replace usages of ioremap_cache() and
ioremap_wt(). memremap() drops the __iomem annotation for these
mappings to memory that do not have i/o side effects. The
replacement of ioremap_cache() with memremap() is limited to the
pmem driver to ease merging the api change in v4.3. Completion of
the conversion is targeted for v4.4.
3/ Similar to the usage of memcpy_to_pmem() + wmb_pmem() in the pmem
driver, update the VFS DAX implementation and PMEM api to provide
persistence guarantees for kernel operations on a DAX mapping.
4/ Convert the ACPI NFIT 'BLK' driver to map the block apertures as
cacheable to improve performance.
5/ Miscellaneous updates and fixes to libnvdimm including support
for issuing "address range scrub" commands, clarifying the optimal
'sector size' of pmem devices, a clarification of the usage of the
ACPI '_STA' (status) property for DIMM devices, and other minor
fixes.
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Merge tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
"This update has successfully completed a 0day-kbuild run and has
appeared in a linux-next release. The changes outside of the typical
drivers/nvdimm/ and drivers/acpi/nfit.[ch] paths are related to the
removal of IORESOURCE_CACHEABLE, the introduction of memremap(), and
the introduction of ZONE_DEVICE + devm_memremap_pages().
Summary:
- Introduce ZONE_DEVICE and devm_memremap_pages() as a generic
mechanism for adding device-driver-discovered memory regions to the
kernel's direct map.
This facility is used by the pmem driver to enable pfn_to_page()
operations on the page frames returned by DAX ('direct_access' in
'struct block_device_operations').
For now, the 'memmap' allocation for these "device" pages comes
from "System RAM". Support for allocating the memmap from device
memory will arrive in a later kernel.
- Introduce memremap() to replace usages of ioremap_cache() and
ioremap_wt(). memremap() drops the __iomem annotation for these
mappings to memory that do not have i/o side effects. The
replacement of ioremap_cache() with memremap() is limited to the
pmem driver to ease merging the api change in v4.3.
Completion of the conversion is targeted for v4.4.
- Similar to the usage of memcpy_to_pmem() + wmb_pmem() in the pmem
driver, update the VFS DAX implementation and PMEM api to provide
persistence guarantees for kernel operations on a DAX mapping.
- Convert the ACPI NFIT 'BLK' driver to map the block apertures as
cacheable to improve performance.
- Miscellaneous updates and fixes to libnvdimm including support for
issuing "address range scrub" commands, clarifying the optimal
'sector size' of pmem devices, a clarification of the usage of the
ACPI '_STA' (status) property for DIMM devices, and other minor
fixes"
* tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (34 commits)
libnvdimm, pmem: direct map legacy pmem by default
libnvdimm, pmem: 'struct page' for pmem
libnvdimm, pfn: 'struct page' provider infrastructure
x86, pmem: clarify that ARCH_HAS_PMEM_API implies PMEM mapped WB
add devm_memremap_pages
mm: ZONE_DEVICE for "device memory"
mm: move __phys_to_pfn and __pfn_to_phys to asm/generic/memory_model.h
dax: drop size parameter to ->direct_access()
nd_blk: change aperture mapping from WC to WB
nvdimm: change to use generic kvfree()
pmem, dax: have direct_access use __pmem annotation
dax: update I/O path to do proper PMEM flushing
pmem: add copy_from_iter_pmem() and clear_pmem()
pmem, x86: clean up conditional pmem includes
pmem: remove layer when calling arch_has_wmb_pmem()
pmem, x86: move x86 PMEM API to new pmem.h header
libnvdimm, e820: make CONFIG_X86_PMEM_LEGACY a tristate option
pmem: switch to devm_ allocations
devres: add devm_memremap
libnvdimm, btt: write and validate parent_uuid
...
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| .. | ||
| vdso32 | ||
| vdso64 | ||
| .gitignore | ||
| Makefile | ||
| align.c | ||
| asm-offsets.c | ||
| audit.c | ||
| btext.c | ||
| cacheinfo.c | ||
| cacheinfo.h | ||
| compat_audit.c | ||
| cpu_setup_6xx.S | ||
| cpu_setup_44x.S | ||
| cpu_setup_fsl_booke.S | ||
| cpu_setup_pa6t.S | ||
| cpu_setup_power.S | ||
| cpu_setup_ppc970.S | ||
| cputable.c | ||
| crash.c | ||
| crash_dump.c | ||
| dbell.c | ||
| dma-iommu.c | ||
| dma-swiotlb.c | ||
| dma.c | ||
| eeh.c | ||
| eeh_cache.c | ||
| eeh_dev.c | ||
| eeh_driver.c | ||
| eeh_event.c | ||
| eeh_pe.c | ||
| eeh_sysfs.c | ||
| entry_32.S | ||
| entry_64.S | ||
| epapr_hcalls.S | ||
| epapr_paravirt.c | ||
| exceptions-64e.S | ||
| exceptions-64s.S | ||
| fadump.c | ||
| firmware.c | ||
| fpu.S | ||
| fsl_booke_entry_mapping.S | ||
| ftrace.c | ||
| head_8xx.S | ||
| head_32.S | ||
| head_40x.S | ||
| head_44x.S | ||
| head_64.S | ||
| head_booke.h | ||
| head_fsl_booke.S | ||
| hw_breakpoint.c | ||
| ibmebus.c | ||
| idle.c | ||
| idle_6xx.S | ||
| idle_book3e.S | ||
| idle_e500.S | ||
| idle_power4.S | ||
| idle_power7.S | ||
| io-workarounds.c | ||
| io.c | ||
| iomap.c | ||
| iommu.c | ||
| irq.c | ||
| isa-bridge.c | ||
| jump_label.c | ||
| kgdb.c | ||
| kprobes.c | ||
| kvm.c | ||
| kvm_emul.S | ||
| l2cr_6xx.S | ||
| legacy_serial.c | ||
| machine_kexec.c | ||
| machine_kexec_32.c | ||
| machine_kexec_64.c | ||
| mce.c | ||
| mce_power.c | ||
| misc.S | ||
| misc_32.S | ||
| misc_64.S | ||
| module.c | ||
| module_32.c | ||
| module_64.c | ||
| msi.c | ||
| nvram_64.c | ||
| of_platform.c | ||
| paca.c | ||
| pci-common.c | ||
| pci-hotplug.c | ||
| pci_32.c | ||
| pci_64.c | ||
| pci_dn.c | ||
| pci_of_scan.c | ||
| pmc.c | ||
| ppc32.h | ||
| ppc_ksyms.c | ||
| ppc_ksyms_32.c | ||
| ppc_save_regs.S | ||
| proc_powerpc.c | ||
| process.c | ||
| prom.c | ||
| prom_init.c | ||
| prom_init_check.sh | ||
| prom_parse.c | ||
| ptrace.c | ||
| ptrace32.c | ||
| reloc_32.S | ||
| reloc_64.S | ||
| rtas-proc.c | ||
| rtas-rtc.c | ||
| rtas.c | ||
| rtas_flash.c | ||
| rtas_pci.c | ||
| rtasd.c | ||
| setup-common.c | ||
| setup_32.c | ||
| setup_64.c | ||
| signal.c | ||
| signal.h | ||
| signal_32.c | ||
| signal_64.c | ||
| smp-tbsync.c | ||
| smp.c | ||
| stacktrace.c | ||
| suspend.c | ||
| swsusp.c | ||
| swsusp_32.S | ||
| swsusp_64.c | ||
| swsusp_asm64.S | ||
| swsusp_booke.S | ||
| sys_ppc32.c | ||
| syscalls.c | ||
| sysfs.c | ||
| systbl.S | ||
| systbl_chk.c | ||
| systbl_chk.sh | ||
| tau_6xx.c | ||
| time.c | ||
| tm.S | ||
| trace_clock.c | ||
| traps.c | ||
| udbg.c | ||
| udbg_16550.c | ||
| uprobes.c | ||
| vdso.c | ||
| vecemu.c | ||
| vector.S | ||
| vio.c | ||
| vmlinux.lds.S | ||