Release 20210731

* binutils a0ff656f98...7d5ff79fb6 (2): > instruction getver support > HPTW (Hardware Page Table Walker) support * fontamsoc-hw d281a19...cae5e8a (11): > improve pu32-xula2lx25.tcl > improve nexys4ddr.xpr > configurable muldiv pipeline units count > enable MMU and HPTW per target > fix license to GPL-2.0-only > implement instruction getver > remove need for opldfaulted opstfaulted opldstfaulted > PU HPTW (Hardware Page Table Walker) > improve multi-cycle instructions completion > nexys4ddr litedram version > pipelined multiplication & division * fontamsoc-sw ad734c9...7129e91 (1): > support for instructions getcap getver * linux bdb4840617e5...fa4066d8923b (4): > improve /proc/cpuinfo > instruction getver support > HPTW (Hardware Page Table Walker) support > page table management improvements
fontamsoc · Aug 1, 2021 · 07f1410 · 07f1410
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diff --git a/README.md b/README.md
@@ -31,8 +31,8 @@ Create mbr-style disk image (or [download prebuilt img](https://github.com/fonta
 Flash image to sdcard using either `dd if=pu32-vmlinux.img of=/dev/<sdx> bs=1M oflag=sync status=progress` or [BalenaEtcher](https://www.balena.io/etcher).
 
 Flash corresponding FPGA bitstream:
-- [xula2lx25](xula2lx25.bit)
-- [nexys4ddr / nexysa7](nexys4ddr.bit)
+- [xula2lx25](xula2lx25.bit) ([rebuild](https://github.com/fontamsoc/hw/tree/master/pu32-xula2lx25/ise))
+- [nexys4ddr / nexysa7](nexys4ddr.bit) ([rebuild](https://github.com/fontamsoc/hw/tree/master/pu32-nexys4ddr/vivado))
 
 Connect to serial port using 115200n8.
 

diff --git a/binutils b/binutils
diff --git a/fontamsoc-hw b/fontamsoc-hw
diff --git a/fontamsoc-sw b/fontamsoc-sw
diff --git a/linux b/linux
diff --git a/nexys4ddr.bit b/nexys4ddr.bit
diff --git a/xula2lx25.bit b/xula2lx25.bit
+4 −0		gas/config/tc-pu32.c
+4 −0		gdb/pu32-tdep.c
+20 −0		opcodes/pu32-dis.c
+38 −8		sim/pu32/interp.c
+389 −64		sim/pu32/m.interp.c
+0 −1		sim/pu32/p.interp.c
+6 −0		sim/pu32/sim-main.h
+339 −0		LICENSE.txt
+2 −2		dev/pi1_dcache.v
+2 −2		lib/perint/inst.pi1q.v
+2 −2		lib/perint/inst.pi1r.v
+2 −2		lib/perint/pi1q.v
+2 −2		lib/perint/pi1r.v
+2 −0		lib/spi/spi_master.v
+2 −0		lib/spi/spi_master_phy.v
+222 −73		pu/dcache.comb.pu.v
+18 −2		pu/gprctrl.comb.pu.v
+4 −26		pu/gprctrl.pu.v
+52 −0		pu/hptw.pu.v
+21 −29		pu/init.pu.v
+19 −7		pu/instrctrl.pu.v
+2 −2		pu/memctrl.comb.pu.v
+2 −2		pu/memctrl.pu.v
+2 −2		pu/mmu.pu.v
+4 −2		pu/multipu.v
+209 −112		pu/netsandregs.pu.v
+2 −2		pu/opalu.pu.v
+2 −2		pu/opcodes.pu.v
+17 −2		pu/opgetsysreg.pu.v
+18 −12		pu/opld.pu.v
+18 −12		pu/opldst.pu.v
+2 −2		pu/opli.pu.v
+0 −34		pu/opmuldiv.comb.pu.v
+247 −38		pu/opmuldiv.pu.v
+8 −3		pu/opsetsysreg.pu.v
+0 −9		pu/opst.pu.v
+7 −11		pu/pu.v
+102 −59		pu/sequencer.pu.v
+2 −2		pu/timers.pu.v
+3 −0		pu32-nexys4ddr/litedram/litedram.v
+3 −0		pu32-nexys4ddr/nexys4ddr.v
+2 −2		pu32-nexys4ddr/vivado/nexys4ddr.xpr
+3 −3		pu32-xula2lx25/ise/pu32-xula2lx25.tcl
+4 −4		pu32-xula2lx25/ise/pu32-xula2lx25.xise
+3 −0		pu32-xula2lx25/xula2lx25.v
+1 −1		version.v
+23 −0		arch/pu32/include/asm/cpuinfo.h
+29 −36		arch/pu32/include/asm/pgtable.h
+15 −0		arch/pu32/include/pu32.h
+52 −4		arch/pu32/kernel/proc.c
+4 −1		arch/pu32/kernel/process.c
+11 −0		arch/pu32/kernel/setup.c
+2 −0		arch/pu32/kernel/smp.c
+16 −4		arch/pu32/mm/fault.c
+2 −3		arch/pu32/mm/init.c