Major changes in upstream Linux kernel for ARC cores

4.16

• MCIP (ARConnect): Minor improvements

4.15

• Support ARC HS48 (MMUv5)
• Perf clean-up and micro-optimizations
• HSDK: Switch DisplayLink driver from FBDEV to DRM version

4.14

• HSDK: Added initial support
• AXS10x: Switch to CLK driver
• NPS400: Fixes and improvements

4.13

• PAE40: Fixes
• AXS10x: Prepare for PAE40

4.12

• ARCv2: chache: Implement regional operations

4.11

• ARCv2: Save accumulator regs (r58, r59) if present
• ARCv2: IDU INTC: Fixes and improvements
• Read CPU clock value from CLK driver
• VDK: Add support of MMC and UIO

4.10

• ARCompact: Fix unaligned access handler
• ARCv2: MCIP (ARConnect): Clean-up
• ARCv2: IOC: Re-enable by default
• ARCv2: IOC: Fixes and improvements
• ARCv2: Save user-space r30 on kernel entry
• IRQ: Minor improvements
• ARCompact: Accommodate 4-color aliased data cache
• AXS10x: Enable ARC PGU as kernel module by default
• ZEBU -> HAPS: Rename platform
• NPS400: Support hardware scheduling
• ARC: Move ARC Timers to clocksource
• ARC: GFRC, RTC fixes and improvements

4.9

• IOC: Disable by default
• ARC: IRQ: Minor improvements
• NPS400: Minor improvements
• DMA: Implement arch-specific dma_map_ops.mmap
• NSIM: Support perf events with interrupts
• ARC: Bootlog improvements
• ARC: syscall for kernel-aasisted atomic operations
• ARC: Dwarf2 unwinder refactoring (switch from .debug_frame to .eh_frame)
• PERF: Enable generic "cache-references" and "cache-misses" events
• ZEBU: Add support of emulation platform
• ARCv2: Support 64-bit atomic ops

4.8

• ARC: Support ABIv4
• VDK, NSIMOSCI: Enable ARC PGU

4.7

• NPS400: Add new platform
• ARC Timers refactoring
• AXS10x: Add support of ARC PGU
• Add support for reserved memory defined by device tree

4.6

• Enable LOCKDEP
• DMA: Support DMA to/from memory beyond 4Gb
• NSIMOSCI: Use NPS_ENET driver for Ethernet controller
• PCI: Add support

4.5

• ARCv2: MCIP (ARConnect): IPI Cross-core interrupts fixes and improvements
• ARCv2: Introduce MMU Super Page Size support (2 and 16MB)
• DMA: Convert ARC to dma_map_ops

4.4

• UNWINDER: Dwarf2 fixes and improvements
• ARCv2: Add PAE40 support
• ARCv2: Add HIGHMEM support
• ARCv2: Add Transparent Huge Pages support

4.3

• ARCv2: Improvements for perf (support of SMP, overflow IRQs, user-/kernel-mode selection)
• ARCv2: Initial support of IO-Coherency

4.2

• Introduced initial port for ARCv2 ISA