Hi,
ARCv2 is the next generation ISA from Synopsys and basis for the
HS3{4,6,8} families of processors which retain the traditional ARC mantra of
low power and configurability and are now more performant and feature rich.
Linux has been ported to HS38x series, a 10 stage pipeline core which
supports MMU (with huge pages) and SMP (upto 4 cores) among other features.
- www.synopsys.com/dw/ipdir.php?ds=arc-hs38-processor
- http://news.synopsys.com/2014-10-14-New-DesignWare-ARC-HS38-Processor-Doubles-Performance-for-Embedded-Linux-Applications
- http://www.embedded.com/electronics-news/4435975/Synopsys-ARC-HS38-core-gives-2X-boost-to-Linux-based-apps
This sub-series introduces changes to existing in-tree port of ARC700 core
(based on ARCompact ISA) to allow for better code sharing with new ARCv2 code.
The actual ARCv2 port will follow as a seperate series.
Please review !
Thx,
-Vineet
Vineet Gupta (19):
ARC: mm/cache_arc700.c -> mm/cache.c
ARC: cacheflush: move some code around, delete old comments
ARC: cacheflush: No need to retain DC_CTRL from __before_dc_op()
ARC: untangle cache flush loop
ARC: entry.S: common'ize scrtach reg freeup in intr + exceptions
ARC: entry.S: Introduce INTERRUPT_{PROLOGUE,EPILOGUE}
ARC: entry.S: canonical'ize EXCEPTION_{PROLOGUE,EPILOGUE}
ARC: entry.S: confine EXCEPTION_* macros to one file
ARC: entry.S: FAKE_RET_FROM_EXCPN can always use r9
ARC: entry.S: Trap handler to use r10 for syscall vs. brkpt decision
ARC: entry.S: comments cleanup
ARC: entry.S: Ensure that restore_regs is local to compilation unit
ARC: entry.S: split into ARCompact ISA specific, common bits
ARC: entry.S: move some code around for cache locality in return path
ARC: entry.S: micro-optimize Trap handler
ARC: entry.S: use single EXCEPTION_PROLOGUE
ARC: entry.S: [arcompact] simplify SWITCH_TO_KERNEL_STK
ARC: Make way for pt_regs != user_regs_struct
ARC: intc: split into ARCompact ISA specific, common bits
arch/arc/include/asm/arcregs.h | 3 -
arch/arc/include/asm/entry-compact.h | 307 +++++++++++++++++++
arch/arc/include/asm/entry.h | 357 +---------------------
arch/arc/include/asm/irqflags-compact.h | 181 +++++++++++
arch/arc/include/asm/irqflags.h | 168 +---------
arch/arc/kernel/Makefile | 4 +-
arch/arc/kernel/entry-compact.S | 393 ++++++++++++++++++++++++
arch/arc/kernel/entry.S | 527 +++++---------------------------
arch/arc/kernel/intc-compact.c | 230 ++++++++++++++
arch/arc/kernel/irq.c | 210 -------------
arch/arc/kernel/process.c | 3 +-
arch/arc/kernel/ptrace.c | 90 +++++-
arch/arc/kernel/signal.c | 55 +++-
arch/arc/mm/Makefile | 2 +-
arch/arc/mm/{cache_arc700.c => cache.c} | 367 ++++++++++------------
arch/arc/mm/tlbex.S | 16 +-
16 files changed, 1494 insertions(+), 1419 deletions(-)
create mode 100644 arch/arc/include/asm/entry-compact.h
create mode 100644 arch/arc/include/asm/irqflags-compact.h
create mode 100644 arch/arc/kernel/entry-compact.S
create mode 100644 arch/arc/kernel/intc-compact.c
rename arch/arc/mm/{cache_arc700.c => cache.c} (77%)
--
1.9.1
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